JPS5922578B2 - Method and spraying device for turning fluid liquid into extremely fine particles in propellant gas - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an improved pneumatic atomizer 6 including a humidifier 6, a fuel burner, and a carburetor, and the use of such an atomizer to inject a very finely fluid liquid into a gas. The present invention also relates to a method for stably dispersing the particles.

Many pneumatic atomizers are known as devices for dispersing fluid liquids in gases.

Generally, such devices are based on the atomizer principle, in which the propellant gas is passed through a narrow orifice and brought into contact with the liquid, which causes the six liquids to be exposed to capillary action or gravity flow (Gr).
avityflOw) to be sent out of the orifice. Such conventional pneumatic atomizing devices have several problems. From an effectiveness standpoint, these spray devices should be used if impact plates, shrouds, or other barriers are installed in the path of the exiting spray to separate the dispersed liquid particles into particle sizes approximately 50 microns or larger. Otherwise, it will not be possible to create fog without substantial liquid outflow. In other words, although conventional pneumatic atomizers can produce mist or soot with dispersed particles up to approximately 50 microns in size or larger, they cannot produce mist with dispersed liquid particles having a maximum diameter of 20 microns or less. It cannot be created directly. A spray device that supplies liquid by gravity or capillary action. There is a problem in that the supply of liquid must be unrestricted in order to be close to the gas orifice.

In other words, in the case of such a spray device, the device may not be moved, tilted, upside down, or subjected to vibrations during operation without preventing damage to the liquid supply or stopping the generation of mist. This limits the scope of what can be done. Other problems with conventional gravity- or capillary-action atomizers include controlling the concentration of liquid in the dispersed mist.
It lies in the fact that you cannot change it.

That is, such concentrations can only be increased or varied by changing the pressure of the propellant gas. Some such atomizers are not equipped with control means and are used where it is required to vary the concentration of the liquid, such as varying degrees of humidity, density of paint, concentration of fuel, etc. It was inappropriate. In another spray device. The concentration of the liquid can only be increased by increasing the pressure of the gas stream. In such cases, the volume of gas flowing out from the spray device increases within a certain period of time, such as face masks, Z6 premature infant incubators, etc., which require compensation for the increased gas volume. There are disadvantages when used in limited locations. In other types of atomizers in which both liquid and gas are supplied under pressure, the concentration of the liquid can be changed by changing the pressure of the liquid relative to the gas pressure.

However, such atomizing devices are unable to produce a uniform and very fine mist for over 61 important reasons. In such a spray device. The width of the liquid orif
ice) is too large or not stable,
Some are also adjustable. In the latter case, appropriate adjustments can be made if the operator is skilled, but even with such adjustments, the pressure or flexibility of the fluid passage may deteriorate during use. Or it disappears due to instability. The principal object of the present invention is to provide an improved air flow system capable of directly and uniformly creating a very fine, stable mist of liquid particles having a maximum diameter of about 20 microns or less, preferably an average diameter of about 10 microns or less, in a propellant gas. The purpose of the present invention is to provide a type spraying device.

Another object of the present invention is to provide an apparatus for producing an extremely fine mist of liquid particles in propellant gas, in which the total weight of liquid particles for a given weight of propellant gas is equal to the pressure of the propellant gas. can be varied or adjusted within close limits independently of the

Another object of the invention is that all liquid supplied to the liquid orifice means is atomized or dispersed as a stable mist, 6 i.e. in the form of runoff or droplets of liquid from the orifice means or other parts of the atomizing device. The object of the present invention is to provide a spray device that does not fall off.

Still another object of the present invention is that even if the device is moved, tilted, tipped over, or subjected to vibration during use, it will not interfere with the supply of liquid to the propellant gas or the outflow of mist. The object of the present invention is to provide a pneumatic spraying device that can supply a constant amount of liquid without causing any damage.

Yet another object of the invention is to have a fixed liquid passageway and a fixed gas passageway, preferably with a sharp-edged gas orifice, the liquid passageway and the gas passageway being presized. A pneumatic atomizing device is provided having a single defined and fixed mixing member, which preferably can be replaced if it becomes damaged or contaminated.

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is an exploded perspective view showing each element of the spray device of the present invention, and FIG. 2 shows the assembled elements. FIG. 1 is a schematic cross-sectional view of the atomizing device of FIG. 1 in operation; FIGS. 3 and 4 are perspective views of an atomizing disc suitable for the atomizing device of FIG. 1 or 5; FIG. Schematic cross-sectional view showing the structure of the burner. Figure 6 shows the spray burner baffle plate shown in Figure 5.
6 is a plan view taken along line 6, and FIGS. 7-13 are perspective and side views of various mixing elements suitable for use in other embodiments of the invention; FIG. 14 is a further embodiment of the invention. FIG. 15 is a schematic cross-sectional view of the spray type carburetor according to the embodiment.
FIG. 5 is a plan view of the lower ring disk of the carburetor of FIG. 4;

The present invention is based on a number of principles and discoveries that, in combination, provide an improved atomizing device that achieves the objects and advantages set forth below.

Small orifices between surfaces that are in contact with each other with a continuous and uniform force of liquid, or that are brought into contact with each other by the pressure of the liquid and/or gas (minimum width or minimum diameter of the orifice 0.5 mm). 010 inches or less), an extremely thin liquid film is formed; The most important discovery is that when impinged on a stream of water, the liquid is dispersed into a very fine mist.

If a liquid enters the gas stream at about the same time as it is dispersed into a large container or into the atmosphere, the expansion of the gas causes the liquid to disperse into a very fine mist and the liquid particles to coalesce into large droplets. Another related finding is that

The amount of liquid dispersed in the gas, and thus the density of the mist produced, can be controlled by varying the pressure or volume of the gas by varying the flow rate of the liquid fed into the gas stream through an orifice of finite size. Yet another discovery is that it can be changed or adjusted within a certain range independently of the When a uniform stream of gas with a sufficient flow rate is brought into contact with the liquid, liquid will flow out of the orifice, and then the liquid will flow 0.010 inch (0.010 in.
．． It is a further finding that there is no dripping or formation of droplets on the side of orifices having a width of less than 254 m0.

It is further explained that if gas is forced through an orifice at sufficient pressure and a thin film of liquid enters the gas stream as it exits the orifice, a shock wave will be created between the liquid particles and the gas stream at the exit of the gas orifice. Another discovery,
This shock wave causes severe vibrations to the small liquid particles in the liquid particle-gas stream, breaking them into smaller, uniform particles.

Figures 1 and 2 show a single atomizing device connected to a pressurized source of liquid and gas, which atomizes the liquid to form an ultrafine mist. The device 10 consists of an annular base plate 11 having a central opening 1 provided for connection to an air conduit 13.
2 and another opening 14 connected to a liquid supply pipe 15. Base plate 11 is connected to circular top plate 16 by compressible outer ring gasket 17 and compressible inner washer gasket 18. The inner washer gasket has a circular atomizing disc 1 between itself and the underside of the top brake opening 6.
9 and 20 are sealed and supported. Four bolts 21 and nuts 22 connect the play holes 1 and 16 with adjustable pressure.

This is due to the possibility of compression of gaskets 17 and 18. Plates 11, 16 and gasket 18
have central openings 12, 23 and 24, respectively. The atomizing disc also has central openings 25 and 26,6 whose diameters are smaller than openings 23 and 24, but greater than 0.01 inch. These openings form gas orifices through which gas from the air conduit 13 passes. When assembled, the five openings are arranged coaxially and form a gas flow path.

The flow of gas through the orifices 26, 25 causes the six gases to form a constriction (Venac Ontracta) beyond the orifice 26 at a distance equal to one and a half orifices, and then in a pattern as shown in FIG. Inflate it with. As shown, the portion sealed between plates 11 and 16 by gaskets 17 and 18 forms a circular chamber 27 into which liquid is supplied to the apparatus via supply pipe 15. will flow in.

circular disc 1 with central openings 25 and 26;
9 and 20 are spaced apart from each other when assembled except for the portion of shim 28 on disk 20 which has a thickness of less than 0.010 inch.

Due to the close arrangement of the disks 19 and 20, a narrow liquid orifice 29 is formed in all directions between the disks.

The orifice 29 is located in the central openings 25 and 2 of the disc.
6 and an inlet communicating with a circular chamber 27 between plates 11 and 16. When gas is pressurized and supplied through air conduit 13, it flows rapidly through openings 12, 24, 26, 25 and 23, forming a constriction and forming a second
It flows into the atmosphere in a free pattern as shown in the figure.

The pressurized liquid passes through the supply pipe 15 into the circular chamber 27.
The chamber 27 is sealed except where the liquid exits through a narrow orifice 29 between the disks 19 and 20. The orifice 29 opens into central openings 25 and 26 from all directions. The fluid pressure is set to be sufficient to force the fluid through the orifice, and the fluid is subjected to a swirling action within the orifice. This effect is due to the fact that the shims 28 are not arranged in a straight line in the radial direction. Due to the friction between the liquid and the inner surfaces of the disks 19 and 20, a turbulent flow of the boundary layer occurs.
It is believed that the film flows out into the central openings 25 and 26 of the disk in the form of a film having a thickness of less than 0.010 inches. Such phenomena are explained in the book ``Introduction to Water and Fluid Mechanics'' by Johns Harper Brothers.
SandFluid Mechanics), New York (1953). Such turbulence swirls the finely divided mass of liquid in the thin film at varying speeds in all directions. As the liquid exits the orifice, the numerous fine liquid clumps have their own independent speed and direction. The thin liquid film exits the orifice 29 and is exposed to the gas flow in the air conduit 13.

The film of liquid becomes liquid particles with an average diameter of less than 10 microns and is transported through the opening 25 by the propellant gas in a stable mist.

In the embodiment shown in FIG. 2, as the gas stream enters the constriction, a thin film of liquid enters the gas stream and the liquid becomes very fine particles. The gas then expands in the pattern shown and flows unhindered into the atmosphere. This is due to the chamfered structure of the orifice 23 of the top plate 16. If the orifice 23 is not chamfered. gas flow is gas pressure and plate 1
6 may hit the inner surface of the orifice. This may cause the dispersed liquid particles to wet the surface and flow back into the orifice 25, creating a vacuum in the orifice 23 on the disk 19. According to the embodiment shown in FIG. The bottom atomizing disc 20 is formed from a flexible thin metal which is twisted by the supplied gas flow and further limits the width of the orifice 29 between the discs in the area of central openings 25 and 26. ．． This creates an even finer mist.

The flexibility of the disk 20 causes it to return to its flat state when the gas flow ceases. Gas pressure and/or hydraulic pressure can be adjusted. This allows disk 20 to be deflected to a desired value, and disks 19 and 2
0 can be reduced to the desired value and also the mutual sealing in the area of the central openings 25 and 26 can be changed. The improved spray device of the present invention combines a number of important features.

When the liquid is first passed between adjacent and parallel atomizing discs 19 and 20, the liquid has a thickness of 0.010 inch or less, more preferably 0.003 inch (0.03 inch) or less.
762W! IL) The following extremely thin film emerges from the central openings 25 and 26 of the disk. Their thickness is determined by the spacing between the discs. After passing through the narrow orifice 29, the thin liquid film flows in a prestressed state into the area of the central opening of the disc 6 and there forms a large number of very small liquid droplets. In the area between the inlet of a liquid orifice and its outlet or the inlet to a gas orifice, the stacked members or disks are in close proximity but not in contact with each other and are not bent or in contact in that area. In conventional pneumatic atomizers, the width of the liquid orifice varies because it is not possible to accurately provide the desired narrow spacing between the member or disk. Such problems can be solved by bringing the members or disks into contact face-to-face or by the pressure of liquid and/or gas in the manner described above. A second feature of the device of the invention is that it directs a continuous gas stream at an angle, preferably substantially perpendicular, to the direction of flow of the liquid film, the gas stream passing through a central opening in the disk. It passes through the liquid film and impinges on the liquid film as it exits the orifice between the disks.

When the collected liquid film is introduced into a gas stream, the thin liquid film separates into a large number of very small liquid particles. The average diameter of these liquid particles is less than about 10 microns,6 and the particles are transported along with the gas stream. A third feature of the inventive device according to a more preferred embodiment of the invention is the abrupt restriction of gas flow effected by holes 26 in disk 20 forming six-sharp edged orifices.

The gas flow pattern constricts as it passes from a relatively wide portion at the bottom of disk 20 through a relatively narrow portion of hole 26 in disk 20. This gas flow continues to contract until it reaches a certain point on the other side of the disk. The point of greatest reduction is known as the reduction portion of the gas flow pattern and is shown in FIG. 2 as the narrowest portion of the illustrated gas flow pattern. The gas flow reaches its maximum velocity at this most contracting part, and then spreads out. disk 2
Because the gas flow pattern contracts as it exits the holes 26 in the gas flow, none of the particles of gas that are part of the gas flow come into contact with the disk 19 as the gas flow passes through the holes 25. This is because holes 25 and 26 are of the same diameter, and the gas flow pattern decreases as the gas flow exits hole 26, so that by the time it passes through hole 25, the gas flow pattern is smaller than the diameter of hole 25. Reduce to a slightly smaller diameter. Since the gas stream flows at a small distance from orifice 29, this gas does not affect the nighttime outflow from orifice 29. The apparatus of the present invention may be operated with a fluid pressure within the orifice 29 that is substantially lower than the gas pressure within the opening 12. A fourth feature of the device of the invention is that the orifices for gas passing through the disk are not required to be of the same diameter.

For example, opening 25 in disk 19 of FIG. 1 or 2 may be larger or smaller than opening 26 in disk 20. If opening 25 is larger than opening 26, the liquid will flow out between disks 19 and 20 in a thin film and spread over the upper surface of disk 20 around opening 26. When the gas stream exits opening 26, a portion of the gas stream becomes vacuum. This vacuum causes a thin liquid film spread over the disk 20 to be sucked into the gas stream. If opening 25 is smaller in diameter than opening 26, the liquid will flow out between disks 19 and 20 in a thin film and spread over the lower surface of disk 19 around opening 25. Gas passing through the openings in disk 20 forces a liquid film that spreads over the lower surface of disk 19. Gas flows along the underside of disk 19 and passes through opening 25. At this time, a thin liquid film spread over the lower surface of the disk 19 is drawn. A fifth feature of the invention is the free passage of the gas stream transporting the liquid particles into the atmosphere or into a large chamber, which allows air to pass through any part of the device that is contacted by the pattern of the diffusing gas stream. This is done by not allowing people to enter the passageway.

Where the device has a top b-plate or other member beyond the central disk in contact with the expanding gas flow, the central orifice in such top plate or other member is It must be sufficiently large and beveled outward as shown in FIG. This prevents the gas stream from impinging on the surface of the plate or other member before exiting into the atmosphere. Otherwise, the dispersed liquid particles will impinge on the surface and bond thereon. It then grows larger and forms droplets on it. These droplets are blown over the surface by the flowing gas, thereby affecting very fine liquid particles contained in the flowing gas. If a further expanding gas flow pattern hits the central orifice of the top plate, some of the droplets will flow down the sides of the central orifice onto the disk 19 and finally through the central opening 25. It becomes blocked. This is a second source of large liquid particles in the gas stream. This is because the liquid that collects at the central opening 25 enters the gas stream.
Due to the force of the gas flow, the droplets form into quite large droplets and form the opening 25.
It comes from the part. If the pattern of the expanding exiting gas stream impinges on a surface that is continuous and in close relationship with the gas orifice, i.e., the central opening 25 of FIGS. There is a partial vacuum in the vicinity, and this vacuum causes the gas flow to diffuse faster than it would if it were in the atmosphere.

This results in a large number of droplets impinging on the surface and forming droplets as described above. However, such drawbacks can be overcome according to more preferred embodiments of the invention.
In this embodiment, the device of the invention is such that the pattern of the exiting gas stream containing very fine liquid particles undergoes normal expansion beyond the constriction, without any disturbing collisions. Constructed to escape into a container or into the atmosphere. A sixth feature of the device according to the invention according to a further preferred embodiment of the invention is that the shock waves are formed outside the gas orifice in the gas stream containing the liquid particles, imparting large vibrations to the liquid particles and further agitating them. The purpose is to force gas through an orifice under such pressure that it becomes fine particles.
In cases where the interior of a confined container, such as an automobile carburetor or face mask, is set at a certain atmospheric pressure, the aforementioned In all cases, the liquid in the form of a fine film or dinit will be reduced to zero when the gas stream comes into contact with the liquid, although the advantages such as
．． 0.010 inches or less.

The gas then enters a large area which causes it to expand at least to some extent and widely disperses the fine liquid particles. Disk 20 for spraying from the empty space under the disk 20
Passing the gas flow from the larger cavity to the narrower cavity so that the gas flows into the central opening 26 of the opening 26 creates a constriction that then disperses the gas flow and reduces the gas pressure.

A thin liquid film or dinit is partially injected and drawn into the gas stream near the reduction section. This is like a thin film of liquid or dinit being pulled apart by the rapidly moving gas near the constriction, which removes particles of 20 microns or more, or even 10 microns or more, from within the liquid particles. things are excluded. Once the liquid particles have passed the constriction, they are immediately dispersed by the expansion of the gas stream. The liquid that flows out becomes a fine, stable mist. In the present invention, the gas flow must be continuous and of sufficient velocity to transport the liquid through openings 25 and 26 of the disc.

It is preferable that the gases and liquids supplied be pressurized, but this is not necessary if the container is under vacuum or if it is handled in the atmosphere, such as in an automobile manifold. The manifold vacuum causes suction at the gas and liquid orifices, gas, or air, is drawn through the orifices, and liquid, or gasoline, is drawn through the orifices and dispersed in the air stream for complete combustion. Ru. FIGS. 3 and 4 show flexible metal atomizing discs 30 and 31.
These disks 30 and 31 can be used in place of the lower disk 20 of the apparatus of FIG. 1, and in this way excellent results can be obtained in conjunction with the upper disk 19. . Note that the upper disk 19 may be omitted and the disks 20, 30, or 31 may be used in conjunction with the lower surface of the top plate 16.
In this case, it is necessary that the underside of the top plate be smooth and that the central opening 23 of the top plate be in line with the central opening of each said disk, such as the opening 26 of the disk 20. . The flexible disk 30 of FIG. 3 is provided with a ridge 32 by pressing the lower side of the disk at the portion shown in the figure.

The height of the protrusion 32 may be such that fluid can enter between the disks. The flexibility of the disk and the degree of tightness of the plates 11 and 16 can be adjusted to provide adjustable compression and/or separation of the disk, as shown in FIG. The width of the orifice 29 can be made 0.01 inch or less. In the case of the disk 30 shown in FIG. 3, it is a flexible or non-flexible disk with grooves or recesses 32.

The groove or recess can be formed by chiseling or scratching the upper surface of the disk along the outer periphery of the disk as shown. This groove does not extend as far as the central opening 33. The ability to adjust the degree of tightness of plates 11 and 16 allows for adjustable compression of the disc to seal disc 30 against disc 19.
The depth of the groove 32 may be such that fluid can enter from the chamber 27 between the disk 30 and the disk 19 along the outer periphery. The pressure of the liquid source can be increased to cause the liquid to ooze in a very thin film from between the discs 30 and 19 into the central openings 33 and 25, where the liquid oozes between the discs 30 and 19. contact with gas through central openings 33 and 25 within. If the reduced pressure is lower than the pressure required to exit between discs 30 and 19, the supply of liquid will be completely removed from the gas flow in disc 30, independent of the pressure of the gas flow in conduit 13. Cut off. Third
According to another embodiment of the illustrated disc 30, the non-flexible disc 30 has one or more grooves or recesses that can be cut out by chiseling the top surface of the disc 30.
Alternatively, it is formed by scratching. The groove extends from the periphery of the disk 30 to the central opening 33, forming a continuous concave passageway. Plate 11
and 16 can be adjusted, thereby making it possible to adjustably press the disc 30 so that the disc 1 is
The disc 30 can be sealed against the 9. The depth of the grooves may be such that the liquid can flow through the grooves. The grooves form a number of thin orifices that provide passageways for liquid from the chamber 27 to contact the gas flow through the central opening 33 of the disk 30. The flexible disc 31 of FIG. 4 has diametrical pleats 34;
This pleat 34 passes through a central opening 35.

The pleats 34 prevent the disk 31 from sticking to the upper disk 19 of FIG. 1, thereby creating a space for a thin orifice similar to that for 29 in FIG. A passageway is provided for contacting the. Washer gasket 18 deforms near pleats 34 to completely seal disk 31 with gasket 18. By being able to adjust the flexibility of the disk and the degree of tightness of the plates 11 and 16, it is possible to adjust the height of the pleats 34, as shown in FIG. The space for the thin orifice to be inserted is less than 0.010 inch. Disks 19 and 20 in FIGS. 1 and 2
, the formation of a very thin layer between two fixed, contacting parallel members, such as plates 30 and 31 of FIGS. 3 and 4, and a continuous and uniform expanding air flow. By directing the liquid in the form of a very thin film or dinit at the point of contact, the liquid particles can be made very small.

This is because the liquid forms small particles instead of large particles, as would occur if the liquid were unrestricted or if the gas flow was insufficient or obstructed. Because the liquid is restricted at the inlet to the air source, the spray device of the present invention may be arranged in any space in the vertical direction, in which case the liquid will not drip or drip. The sprayer will not fall off. Such a spraying device is preferably used as a hand-held device for spraying paints, liquid fungicides and fertilizers, and other materials, for example, when freedom of spray direction is required. Regardless of the direction of spray action, it is preferred that the direction of gas flow be approximately perpendicular to the direction of the liquid as it exits the thin orifice.

This forms a gas contraction section in a direction perpendicular to the direction of liquid flow. In an embodiment of the present invention, a reduction section is used to create a fine mist. The atomizing device of FIGS. 1 and 2, by itself or in cooperation with other mixing elements shown here in place of discs 19 and 20, can be used to control a very wide range of viscosities of the liquids to be dispensed. It can create a fine mist.

FIG. 5 shows a spray device 40 which is preferred for use as a burner, such as an oil burner.

The spray device 40 has a base unit similar in structure and function to the device shown in FIGS. 1 and 2. The base unit has a circular top plate 41,
It consists of a circular base plate 42, a compressible inner washer gasket 43, a compressible outer ring gasket 44, and a mixing member consisting of thin, contacting atomizing discs 45 and 46, which 46 is the inner gasket 43 and the top
It is set so that it does not move relative to the lower surface of the plate 41 and there is no slippage between them. The disks 45 and 46 have central openings that are aligned and provide a gas passage 47 with sharp edges. The plates of the base unit are held together by four bolts 48 and nuts 49. These bolts and nuts are fitted with gasket 43
and 44 with sufficient pressure to force the atomizing discs 45 and 46 into intimate but discontinuous surface contact. The upper surface of the lower disk 46 is provided with a recess such as a set of regularly spaced radial grooves extending from the outer edge to the central opening and having a depth of approximately 0.01 inch. It is preferably set to 0.001 inch or less. Disks 45 and 46 are the third
It may be as shown in FIG. 4 or 7 to 13. In all cases the matching parts or discs have grooves, scratches, etc. between them. DepressiOn
). The orifice for liquid is formed by an etched portion, an unpainted portion, or a portion having a spacing adjustment means such as a shim. And between the inlet and outlet of the liquid orifice, it has or is adjusted to have a contacting part, such as a surface that is in constant contact or bends into contact during use, and has the smallest width. One or more liquid orifices are provided between the discs or plates to provide passageways for the liquid to pass through as a very thin film or dinit. The assembled lower unit defines a sealed circumferential fluid chamber 50 which is connected to the inner surface of ring gasket 44, disks 45 and 4.
6 and the space between the outer edge 6 of inner gasket 43 and the inner surface of plates 41 and 42.

The plate 42 has a hole 52 communicating with a chamber 50 and a liquid supply pipe 51, the liquid supply pipe 51 being provided for supplying a liquid to be sprayed, such as fuel oil, to the chamber 50 under a desired pressure. It will be done. The base plate 42 also has a central opening 53 into which an air conduit 54 is attached. Air conduit 54 is for supplying air through opening 53, disk passage 47 and central opening 55 in plate 41 at the desired pressure. The central opening 55 is oblique as shown at 56. 5 and 6, air is passed through gas passage 47 by supplying air through conduit 54 and liquid through conduit 51;
The liquid passes in a thin film between disks 45 and 46 and through the air stream.

As the liquid enters the air stream at the gas constriction in the gas opening 55 of the top plate 41, it is dispersed into a large number of fine particles, 6 which are further broken down by shock waves in the gas stream. In FIGS. 5 and 6, the base unit has an overlying baffle plate 57, such as a reflective metal plate, having a central opening 58 in line with the opening 55 in plate 41; The baffle plate (baffle plate) 57 is a washer 59
are spaced apart from the plate 41 by a certain distance, forming an air passage 60 communicating with the atmosphere therebetween.

The plate 57 has an outer hole corresponding to the bolt 48 as shown in FIG.
Attached to fix the A combustion cone or flue 61 is provided above the buttful plate 57 in line with the opening 55 in plate 41, with plate 57 acting as the floor of the combustion chamber.

Finally, an outer flue member 62 is optionally provided. The flue member 62 is provided so as to be higher than the flue 61 from the surface of the baffle plate 57 as shown. The flow of liquid particles and air exits the central gas passage 47 and passes through the disk 46.
A reduced portion is formed to extend the .

The pressure within the constriction is substantially less than atmospheric pressure 6 thereby creating a partial vacuum in the area of opening 55 . Opening 5
The air on the plate 41 near 5 is sucked out and becomes part of the flow of liquid particles and air in the reduced portion. Batsuful・
Since the plate 57 and the top plate 41 are spaced a certain distance apart, outside air is sucked in between them. As the air exits the central opening 55 of the top plate 41 - it enters the liquid:particle and air flow.
The baffle plate 57 and the air passage 60 allow the outside air to become a partial vacuum created by the flow of liquid particles and air. Preventing it from being drawn into the space under plate 57. When a spray liquid such as fuel oil is burned in the combustion cone 61 in this manner, the fuel burns uniformly and continuously on the baffle plate 57. The baffle plate 57 shields the top plate 41 from flames and cold external air is sucked in through the air passages 60 to close the top plate 41. Disks 45 and 46 can be prevented from heating up. When a spray liquid, such as fuel oil, is burned, a portion of it burns on the combustion cone 61 and a portion burns within the combustion cone 61, thereby making the combustion cone 61 very hot.

Due to the heat radiated inward from the combustion cone 61, the fine particles of fuel oil are... As soon as it exits the central gas passage 47, it evaporates. The vaporized fuel mixes thoroughly in the combustion cone with the air passing through the central gas passage 47 and with the air drawn into the liquid droplet and air stream through the air passage 60. The vaporized fuel burns in a uniform, translucent blue flame. When a heat-resistant enclosure, such as a metal flue 62, is placed over the combustion cone 61 as shown in FIG. becomes red and hot.

Providing a passageway for air, such as a set of holes 63 near the base of the flue 62, allows additional air to flow through the flue 62.
It is possible to continue emitting a continuous blue flame within and above the combustion cone 61. Domestic heating oil (Taki 2 fuel oil) is burned at a rate of approximately 1 pint (approximately 0,471) per hour in the working model of the spray device shown in Figure 5, and the waste gas is used as Bahara Fire Light. Carbon dioxide gas analyzer (BACHRA
CHFyrlteCO2Analyzer).

The CO2 contained in the waste gas is caused by the smoky waste (B
ACHARACHSmOkeA6. ) is 14.5% between 1 and 2, indicating almost complete combustion.
A large amount of air necessary for complete combustion is brought from the atmosphere to the air passage 6.
The atomizing device shown in FIG. Can be operated as a fuel burner.

The construction of the atomizing or burner apparatus of FIGS. 5 and 6 is a relatively small automatic or electrically controlled fuel oil combustion system which operates very effectively at a rate of about one pint per hour.・Can be used as a burner.

This represents a significant difference from commonly used automatic oil burners, which burn a minimum of about 6 pints of fuel oil per hour. An important advantage of the burner arrangement of FIGS. 5 and 6 is that in the flow of fuel particles and air through the combustion chamber on the six-full plate 57, the ratio of liquid fuel to the amount of air (including air drawn in from outside air) This is because the ratio of the amount of liquid fuel to the amount of air can be adjusted so that complete combustion can be achieved.

In the case of domestic combustion oil (Taki 2 fuel oil), it takes 107 pounds (about 48.6 kg) of air (at atmospheric pressure) to completely burn 1 gallon (about 3.81 kg) of fuel oil. approximately 1400 cubic feet). If the amount of air supplied to the flame is small, combustion will be incomplete. When excess air is supplied to the flame, heat is taken away from the flame to heat the air, lowering the temperature of the flame. The proportion of outside air drawn into the fuel particles and air stream through the air passage 60 is directly related to the proportion of the liquid particles and air flowing from the central gas passage 47. To this end, adjusting the proportion of liquid fuel entering the burner device through conduit 51 and the proportion of air entering the burner device through conduit 54 results in (1) a flow of liquid fuel particles and air (
(2) the ratio of liquid fuel particles entering the combustion chamber to the amount of air (including air drawn in from the outside air) in the flow of liquid fuel particles entering the combustion chamber; Both the amount and proportion of fuel can be adjusted. Another important advantage of the burner device of FIGS. 5 and 6 is that a relatively small air pump can supply sufficient compressed air to the burner device to operate the atomizing device. This means that the liquid fuel particles can be inhaled and mixed with a stream of air for complete combustion.

This is because a low pressure zone or partial vacuum is created in the liquid fuel particles and air flow by creating a constriction as it passes through the atomizer orifice. Ambient air is drawn into the liquid fuel particles and air stream as it exits the atomizer. Operating a conventional air atomized oil burner requires a fairly large air pump because nearly all the air required for combustion must be forced around the atomizer or nozzle. A further advantage of the combustion apparatus of FIGS. 5 and 6 is that the atomizing orifice 47 is spaced from the flame and is shielded from the flame by a buttful plate 57, and the air passage 6
This means that it is cooled by the outside air that is drawn in through the air and is kept at a relatively low temperature.

The nozzles of many conventional fuel oil burners are exposed to heat, and when the burner is shut off, the remaining fuel oil in the nozzle evaporates leaving a messy residue behind, causing problems. A further important advantage of the burner arrangement of FIGS. 5 and 6 is that the combustion of the fuel oil takes place partly in the area of the combustion cone 61, which becomes hot.

When a stream of fuel oil and air is introduced inside the heated cone, the fine fuel oil particles immediately evaporate and thoroughly mix with the air within the cone. As mentioned above, the mixing device used in the present invention consists of two cooperating members:
These members have aligned transverse holes and surfaces that are in contact or can be deflected into contact.

A portion of one or both surfaces of the contact members may be provided with a thin spacing piece such as a shim or a narrow recess or gap, or said member may be deflected during use to provide a liquid supply between the two members. One or more dilute liquid orifices are formed in communication with the chamber and in communication with the aligned openings. These members are typically located between the orifice inlet and opening or between the fluid and/or
With the help of gas passages. They are supported so that they are in contact with each other. Preferably, these members are made from flat stainless steel sheets having a thickness on the order of about 0.005 inch to 0.05 inch.

These members may have an arcuate shape6 or other shapes as long as they have corresponding surfaces. These members are supported such that their surfaces contact each other in the area between the inlet and outlet of the liquid orifice, or are sufficiently flexible so that they do so during use. The members may also be made of glass, plastic, or other chemically impermeable materials. The thickness of these members may be the same or different. For example, the upper member may consist of the plate 16 of FIG. 1 or 2. In this case, the bottom surface of the plate 16 is the disk 2.
The disk 19 may be omitted if it fits on the top surface of the 0. The opening 23 is aligned with the opening 26 of the disk 20. The openings provided in the cooperating members may be of the same diameter or of different diameters.

For example, opening 25 in upper disk 19 of FIGS. 1 or 2 may be larger or smaller than opening 26 in disk 20. Also, the recess formed in the lower disk or plate need not extend to the periphery of the disk or plate so long as it communicates with the liquid supply chamber.

The lower disk may also have a liquid opening spaced apart from the gas opening, and the liquid opening communicates with the liquid supply chamber. thin steel,
The use of flexible orifice means, such as contact members or discs, formed from flexible, water-impermeable materials such as aluminum, plastic, etc., represents an important embodiment of the invention.

This allows the disk to be deflected into substantially open and closed positions under the pressure of the liquid or gas stream, thereby providing the thinnest film of liquid fed to the gas stream; This allows you to create the most fine and stable fog. Due to thin washers etc.
At a small uniform distance. If the disks are placed correctly. A flow of pressurized gas directed through the gas conduit causes the lower disk to deflect toward the underside of the upper disk.

This is due to the limited diameter of the gas opening in the center of the lower disk. This makes the liquid orifice narrower in the area of the adjacent gas orifice, which is a function of the gas pressure and the flexibility of the disk. Liquid cannot pass through this liquid orifice unless the pressure of the liquid is increased enough to pass the liquid between the discs. In other words, unless the liquid orifice can be brought to its smallest opening, liquid cannot pass through. When the opening is in the closed position, the liquid can be passed through the central gas orifice and brought into contact with the propellant gas. Also, if the liquid pressure is set low and the air pressure is reduced so that the lower flexible disk presses against the upper flexible disk, the disks will separate from each other so as to return to their normal flat state. can be done. Gradually reducing the fluid pressure allows the spacing between orifices adjacent to the gas orifice to be less than 0.010 inch wide, and perhaps less than 0.001 inch wide. A liquid can be passed between them and brought into contact with propellant gas. When the disks are in contact and closed, the liquid or gas must be supplied at such pressure that the disk contact is opened and only a few liquid orifices are formed.

Once such a liquid orifice is formed, liquid can be delivered to the gas orifice. If the opening of the gas orifice in the top disc is smaller in diameter than the opening of the gas orifice in the lower disc, creating a greater resistance to gas passing through the gas orifice, the gas pressure will be lowered from the lower disc. Liquid can be passed between the discs in hydraulic contact to act to push the upper disc. In the case of flexible discs which form a thin liquid film only under the action of applied hydraulic and/or gas pressure, it is necessary to provide the discs with spacing means such as shims or grooves. Alternatively, a partial spacing member may be provided at the inlet of the liquid orifice and not extend over the entire surface of the disk to the outlet of the liquid orifice, i.e., the gas orifice.

Opposite surfaces of the flexible disk adjacent the gas orifice may be brought into contact with each other such that the liquid orifice is fully closed until the liquid and/or gas pressure is adjusted. In this way, it is highly flexible,
In the case of disks that touch or are placed in close proximity, the hydraulic and/or gas pressures are adjusted such that one or both disks flex, thereby minimizing the space for the minimum orifice through which the liquid can pass. is formed.

This is extremely important because it produces the most boundary layer turbulence regardless of liquid viscosity, and under this condition the thinnest liquid film is formed and the finest mist is created. Low viscosity liquids, such as water, are dispersed in a very fine mist through orifices less than 0.01 inch wide or in diameter, while high viscosity liquids, such as heavy oil, are dispersed through orifices less than 0.01 inch wide or in diameter.
A narrower orifice of 0.003 inch or less may be used. The mixing member is preferably easily removable and consists of a single element consisting of upper and lower plates or discs, which are separated from each other as shown in Figures 7 and 8. They are attached to each other so that no relative movement or slippage occurs between them. When the mixing member becomes worn out or soiled, it can be discarded and replaced with a new one. Providing means to prevent relative movement or slippage as shown in Figures 9 and 10 will help if the gas opening is not centered in the disk or plate, or if several gas openings are present. This is particularly preferred if the disks or plates move relative to each other and are no longer in a linear relationship. 7th to 13th
The figure shows another embodiment of the mixing member used in the present invention.

Figures 7 and 8 show a single mixing member 70, such as a thin stainless steel plate, which is coated or shimmed after the ends of the plate are pressed. It is created by forming a flat surface part 71 leaving a recessed part 72 and folding it at the center.

When the plate is folded as shown in FIG. 8, the lower surface of the upper plate 73 comes into close contact with the surface portion 71 of the lower plate 74, thereby forming a passage consisting of a narrow recess 72 between them. In the folded state, the central opening 75 in the plate 73 is in line with the central opening 76 in the plate 74. Forms a gas passage. This gas passage communicates with a recess in the lower plate 74. Accepts thin liquid films for spraying. FIGS. 9 and 10 show another mixing element, which consists of a disk provided with a number of gas passages and correspondingly provided with notches.

The upper disk 80 has four gas openings 81 and two opposing circumferential notches 82,6 and these openings 81 and notches 82 connect the four gases on the lower plate 85. The opening 83 and the notches 84 provided on the two peripheral edges correspond in size and position. Openings 81 and 83 for gas, notch 82
and 84 is 6 disk 80 as shown in FIG.
and 85 are aligned when assembled. 1st
The atomizing device, like the internal gasket washer 18 shown, has means extending into aligned notches 82 and 84 to prevent relative sliding or rotation of the discs 80 and 85. I can do it.
This can also be done by the washer 18 itself due to its compressibility in the area adjacent to the notch.
As shown, the lower plate 85 has a set of regularly spaced recesses 86 consisting of fine grooves.

This recess 86 extends from the periphery of the disk 85 and communicates with the gas opening 83. A liquid supply chamber delivers liquid to the gas stream. The atomizing device must be constructed so that all gas openings are unobstructed by the gasket 18 and the central opening 23 in the top plate 16.
11 and 12 show another mixing element 6 which consists of a smooth upper disc 90 with a central gas opening 91, a lower disc 92 with a central opening 93, and a lower The disk 92 further includes spaced recesses consisting of diametrical pleats or depressions 94 through a central opening 93. Fold 9
4 prevents the disk 92 from coming into close contact with the upper disk 90 at the pleated portion, thereby providing a cavity 95 for a shallow orifice, and 6 forming a passage for the liquid from the liquid supply chamber in contact with the gas flow. be done. The washer gasket 18 of FIGS. 1 and 2 deforms around the pleats 94 to completely seal the disk 92. On the other hand, the upper surface of the disk 92 adjacent the pleats 94 contacts and sealingly engages the lower surface of the upper disk 90. Figure 13 shows yet another mixing member. The mixing member consists of a smooth upper disc 100 with a central gas opening 101 and a lower disc 102 with a central opening 103.

The upper surface of the lower disk 102 has a number of interrelated recesses 1.
04, and this recess 104 is formed around a large number of protrusions 105 having a uniform depth and a uniform height relative to the original thickness of the six disks 102. The surface of such a disk can be formed by sandblasting or by uniformly applying chemical or mechanical etching to the surface. In this case, the original thickness of the disk is maintained at the protrusion 105 surrounded by the recess 104. The recesses 104 are interconnected and extend from the periphery of the disk towards the central opening 103 as shown. When the surface is uniformly roughened as in this type, numerous liquid orifices forming passages for the liquid are formed, thereby preventing blockage. Suitable surfaces of this type can be formed by pressing the disc into a die with a correspondingly inversely roughened surface, or, in the case of plastic discs, also by a molding die having a correspondingly inversely roughened surface. The disk may be formed using a mold.

As an alternative means of forming regularly spaced recesses in the disk or plate, instead of removing the surface material from the disk or plate, a suitable material having a thickness of 0.01 inch or less may be applied to the surface of the disk or plate. You may let them.

The result thus obtained will be similar in appearance and operation to the disk 20 of FIGS. 1 and 2. For example, the raised area surrounding the narrow recess 28 is formed by applying an inert material, such as a synthetic resin or metal, uniformly and in thin, discontinuous manner to the smooth surface of the disc. This can be accomplished by using a photosensitive synthetic resin composition. The composition is exposed to negative electricity and then removed from areas not exposed to negative electricity.
This portion corresponds to the recess 28. It can also be carried out by vacuum deposition of a metal layer, in which case a template is placed in the cavity corresponding to the recess 28 to prevent deposition in this area. Speckle coating technology (SpecklecO) is used to provide this discontinuous coating layer.
It can also be carried out by a tinging technique). According to this method, small flecks of a suitable composition are smeared onto the surface of the plate or disc, forming a large number of uniformly high bulges of 0.01 inch or less over the entire surface of the plate or disc. be done. A similar result can be obtained by depositing uniformly sized particles of heat-fusible powder onto the surface of the disk, such as by electrostatic techniques. In this case, the heat-fusible particles form spaced protrusions on the disk surface having a height of less than 0.01 inch. Cast or otherwise formed disks or plates with uniformly roughened surfaces having recesses and protrusions of the desired depth may also be used. Other suitable methods will be apparent to those skilled in the art from this disclosure. The disks of FIGS. 7 to 13 may be attached to each other as elements used as a unit. FIG. 14 shows a spray device for a carburetor according to another embodiment of the present invention, which includes an air flow chamber 111.
Karirin supply member 110 sealed and attached within
Consisting of The chamber 111 consists of a pipe 112 such as a manifold pipe of an automobile engine, and the reduced part 1
It has 13. Gasoline supply member 110 is pipe 1
12 and allows gasoline to flow out at a constriction 113 within the pipe. The gasoline supply member 110 has a pipe 112 for supplying gasoline from the outer pipe.
It consists of a liquid supply conduit 114 disposed through the wall, a flow member 115 screwed into the conduit 114, and a conical cap member 116 screwed into the member. It is supported in such a way as to press down on the upper surface of the flow member 115.

A gasket 1 is installed on the underside of the conical cap member 116.
17 is provided and a thin rigid or flexible disk 118 is attached to the gasket.

An outer ring gasket 119 is provided on the upper surface of the flow member 115, and a thin rigid or flexible ring disk 120 is attached to the gasket 119. The disk 120 is shown in FIGS. 7 to 13.
It has a set of recesses similar to those provided in the disk shown. This creates a liquid orifice between disks 118 and 120 having a constant depth of less than 0.010 inch. During operation, cap 11
6 is screwed into the flow member 115, and the gasket 117
and 119 to bring the surfaces of disks 118 and 120 into close contact.

When the engine crank is turned and started, the chamber 111 becomes vacuum. Gasoline is sucked in through conduit 114 and air is sucked in through conduit 112. Gasoline enters the round chamber 122 through a passageway 121 in the flow member 115 and into the air stream through a narrow fluid orifice consisting of a recess 123 (see FIG. 15) between disks 118 and 120. The outflowing gasoline forms a number of thin films within the circumferential space between the constriction 113 of the pipe 112 and the outlet of the liquid orifice 123.

The outflowing gasoline also comes into contact with the air flow and becomes a very fine gasoline mist. This is because the air forms the constriction and then expands into the wide chamber in the pipe 112 below the constriction 113. As shown in detail in FIG. 15, ring disc 120 is preferably made of flexible stainless steel and has a smooth, flat surface 124 and a downwardly sloped central lip 12.
5.

Surface 124 is formed with a number of regularly spaced radial grooves or recesses 123 to provide passageways or orifices for liquid, which are 0.
The depth is set to 0.01 inch or less, preferably 0.003 inch or less. Surface 124 is the upper disk 1 of FIG.
It comes into close contact with the bottom surface of 18. Upper disk 118 is also preferably made of smooth, flexible stainless steel. The periphery of the disk 118 protrudes from the periphery of the disk 120. This causes the gasoline exiting the recess 123 to form a fine thin film on the underside of the disk 118, creating a partial vacuum in the airflow constriction in the narrow gap between the outer edge of the disk 118 and the constriction 113 of the pipe 112. It is sucked in by the action of Preferably, the width of the narrow gap can be adjusted by moving either the constriction 113 of the pipe 1126 or the feed member 110, thereby adjusting the velocity of the air passing through the fluid orifice. It can be changed regardless of the amount of air being used. As for dirt in the recess 123, it is sufficient to remove the cap 116 and clean the contact surfaces of the disks 118 and 120. It will be obvious to those skilled in the art that modifications may be made to the various structures shown, which may be easily replaced in the event of damage to either or both disks 118 and 120, if desired. Also, the mixing member of one spray device may be replaced with that of another embodiment.

This can easily be done with a few obvious changes. The invention involves the use of atomizing discs or plates that are in non-continuous contact with each other over most of their surfaces and that define at least one liquid orifice between them. can be deflected so as to touch or not touch. The disks or plates may be of the same thickness or of different thicknesses. It may also have the same effect on pressurized liquids or pressurized gases, or on fluids and gases drawn in a vacuum.
It may also have different effects. The device of the invention has in all cases at least one, preferably multiple, very shallow and narrow orifices between the contacting disks or plates.

The depth of each orifice is set to 0.01 inch or less6 and preferably 0.003 inch or less to direct the liquid stream into the gas stream so that the gas is flowing at the required velocity within the gas stream. Forms a thin film or dinit. According to one embodiment, the gas orifice prevents the plates or discs from deflecting and the recesses by contacting the plates or discs with their surfaces at the surface between the inlet and the outlet of the liquid orifice. the disk or plate may be supported to prevent reducing the spacing of the formed portions;
This creates a stable liquid orifice. In other embodiments, the plates or disks are flexible and may be brought into contact with each other.
Or they are placed very close together. In the former case, the pressure of the liquid and/or gas causes the plate or disk to gradually flex, forming a very small liquid orifice between them. The liquid orifices are capable of passing liquid between them. In the latter case, a flexible plate or disk is arranged to flex under the pressure of the liquid and/or gas so as to close or seal the liquid orifice. The pressure is then gradually released, causing the flexible plates or discs to gradually flex and separate, forming a very small liquid orifice. Liquid passes between these orifices. It goes without saying that the present invention is not limited to the embodiments described above, and that various changes can be made without departing from the spirit of the invention.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing each element of the spray device of the present invention, FIG. 2 is a schematic sectional view of the spray device of FIG. 1 with each element assembled and in operation, and FIGS. 4 is a perspective view of an atomizing disk suitable for the atomizing device shown in FIG. 1 or 5.6 FIG. 5 is a schematic sectional view showing the structure of the atomizing burner of the present invention, and FIG. 6-6 burner baffle plate
7-13 are perspective and side views of various mixing elements suitable for use in other embodiments of the invention; FIG. 14 is a further embodiment of the invention; A schematic cross-sectional view of an example spray type carburetor 6.
FIG. 3 is a plan view of the lower ring disk of the carburetor shown in the figure. Main symbols in the drawing: 10: device, 11: base plate. 12: Central opening. 13: Air conduit, 15: Liquid supply pipe, 16: Top plate 617, 18: Gasket,
19, 20: Sprayer disk 623, 24, 25, 2
6: central opening, 40: spray device, 41: top plate, 42: base plate, 45, 46: disk, 5T: baffle plate.

Claims (1)

[Claims] 1 (a) in use contact each other in the region between the inlet and outlet of the liquid orifice, or in use are deflected into surface contact in said region by the forces of the liquid and/or gas; or the entrance of at least one fluid orifice having a limited spacing consisting of at least one narrow fluid passageway between two members having surfaces that are deflected to separate the surface contacts; (b) passing the liquid through the liquid orifice as a continuous thin liquid stream having a thickness of about 0.010 inches or less; continuously supplying a propellant gas at a sufficient rate through a gas orifice to the thin liquid stream exiting the gas orifice to disperse the thin liquid stream as very fine particles of the liquid in the gas. A method 2 for making a fluid liquid into extremely fine particles in a propellant gas, characterized in that the pressure of the liquid and/or gas is adjusted, and the amount of liquid passing through the liquid orifice is adjusted to reduce the amount of liquid passing through the gas orifice. 3. A method according to claim 1, characterized in that the amount and concentration of liquid particles dispersed in the gas are varied in relation to the amount of gas passing through the gas orifice. a sharp edged gas orifice through which the continuous gas flow is directed, forming a constriction in the gas flow, and directing the continuous thin liquid stream to the constriction of the gas flow; Claim 1 characterized in that the liquid is introduced into a gas stream substantially simultaneously with its formation, so that very fine particles of the liquid are dispersed in the gas.
Method 4 according to claim 1 or 2, characterized in that the extremely fine liquid particles dispersed in the gas can be directly sent into a large container without colliding with a solid surface. Method 5 according to item 1, item 2, or item 3, wherein at least one of the members is flexible, pressure is applied to the liquid and/or gas to cause the member to flex, and the member is bent. Claims 1, 2, 3, or 4, characterized in that the spacing of the flexible orifices is gradually varied to allow a film of liquid of a desired thickness to pass therethrough. Method 6: A liquid comprising a compartment provided for supplying a fluid liquid, an inlet and an outlet, the inlet communicating with the compartment and causing the liquid to flow out of the compartment as a thin liquid stream. a gas orifice communicating with the liquid orifice and provided for communicating a continuous gas flow with the outlet of the liquid orifice from the compartment through the narrow liquid orifice; The fluid liquid is highly concentrated in a propellant gas configured to form a thin stream of said liquid, said thin liquid contacting the gas passing through said gas orifice into very fine particles. In an atomizing device for dispersing fine liquid particles, a mixing member consisting of two superimposed members is provided, between which at least one said orifice for liquid is formed, the surface of said member being configured to accommodate liquid during use. contact each other in the region between the inlet and outlet of the orifice, or in use be deflected into surface contact in said region by liquid and/or gas forces, or to separate the surface contacts. 7. Atomizing device 7 configured to be deflectable. 8 Atomizing device 8 according to claim 6, wherein the mixing member comprises at least one movable and replaceable member. The mixing member is arranged between the gas orifice and the liquid orifice. orifices, each superimposed member having at least one through hole disposed in alignment with a hole in a corresponding other member and communicating with said liquid orifice. The spray device 9 according to claim 6 or 7, wherein a gas orifice is formed through the mixing member.
Claim 6, wherein the overlapping members of the mixing member are attached to each other as a single member;
Spray device 10 according to claim 7 or claim 8. Spray device 11 according to claim 9, in which the superimposed members consist of a single plate folded onto itself.
the mixing member comprises a pair of relatively flat members having parallel, smooth contact surfaces that sealingly engage at the contact portion, at least one of the members having at least one recess defining the liquid orifice; The spray device 12 according to claim 6, 7, 8, 9 or 10, wherein the liquid orifice is formed from a portion where material has been removed from the surface of the member. Claim 6, characterized in that the shallow recess is
Spray device 13 according to claim 7, 8, 9, 10, or 11. Claims in which the liquid orifice is a shallow recess formed by a pressing portion formed on the surface of the mixing member. Spray device 14 according to item 6, 7, 8, 9, 10, or 11. The liquid orifice is a space between discontinuous films adhered to the surface of the member. A spraying device 15 according to claim 6, 7, 8, 9, 10, or 11, consisting of: The liquid orifice extends from the periphery of the mixing member to the gas orifice. The spray device 1 according to claim 6, 7, 8, 9, 10, 11, 12, 13, or 14, which is extended.
6 at least one of the superimposed members has on its surface a number of means for contacting the surface of the other member in a portion between the inlet and outlet of the liquid orifice, and 0.010 Spray device 1 according to claim 6, wherein a gap is formed between the members on the order of inches or less.
7. Spray device 18 according to claim 16, wherein said means comprises a member provided on one surface of said member.
Claims 6, 7, and 8, wherein the liquid orifice has a depth of about 0.003 inches or less.
19, 9, 10, 11, 12, 13, 14, 15, 16, or 17, wherein the amount of gas passing through the conduit is varied. Claim 6, wherein the gas flow rate is changed to change the amount of liquid and gas that meet in the gas orifice, thereby changing the concentration of extremely fine liquid particles. Section 7, Section 8, Section 9, Section 10,
Clause 11, Clause 12, Clause 13, Clause 14, Clause 15,
Spray device 20 according to item 16, 17, or 18
means for changing the amount of liquid passing through the liquid orifice, and by changing the amount of liquid flow, the amount of liquid and gas that merge in the gas orifice is changed, and the concentration of extremely fine liquid particles is changed. Claims 6, 7, 8, 9, 10, and 11
Section 12, Section 13, Section 14, Section 15, Section 16
The spray device 21 according to item 1, item 17, item 18, or item 19, wherein at least one of the superposed members is a flexible member, and the force of the gas and/or liquid is gradually changed. and configured to change the spacing of the liquid orifices in contact with or out of contact with the other member, and the force of the gas and/or liquid is adjusted to change the spacing of the liquid orifices. Claims 6, 7, 8, and 9 are configured so that the liquid can be made as small as possible and the liquid can pass from the compartment through the liquid orifice at a desired thickness. , Section 10,
Clause 11, Clause 12, Clause 13, Clause 14, Clause 15,
Section 16, Section 17, Section 18, Section 19 or Section 20
Atomizing device 22 according to paragraph 2, wherein said gas orifice is a gas orifice with a sharp edge associated with a conduit provided for supplying a continuous gas flow through said orifice, and said gas orifice is a gas orifice with a sharp edge associated with a conduit provided for supplying a continuous gas flow through said orifice; Claims 6, 7, 8, 9, 10, characterized in that the fluid liquid passing through the orifice is a very thin stream of liquid in contact with the gas stream. Section, Section 11, Section 1
Section 2, Section 13, Section 14, Section 15, Section 16, Section 1
Spraying device 23 according to paragraph 7, 18, 19, 20 or 21, wherein the conduit terminates in the sharp-edged gas orifice and the device has a surface that can come into contact with very fine liquid particles. 24. The spray device 24 according to claim 22, characterized in that the spray device 24 does not have a gas orifice in front of the gas orifice. Claims 6, 7, 8, 9, 10, 11, which are provided with a combustion chamber capable of containing and burning the particles. The spray described in item 12, item 13, item 14, item 15, item 16, item 17, item 18, item 19, item 20, item 21, item 22, or item 23. Apparatus 25, wherein the combustion chamber is arranged above the gas conduit and has a floor member having an opening through which very fine liquid particles can be admitted into the chamber, the floor member being a constant distance from the outlet of the conduit. 25. The spray device according to claim 24, further comprising means for introducing outside air into the combustion chamber together with the very fine liquid particles through the openings in the member.