CN104675437A - Double-rotary-shaft vortex fluid mechanism and device comprising same - Google Patents
Double-rotary-shaft vortex fluid mechanism and device comprising same Download PDFInfo
- Publication number
- CN104675437A CN104675437A CN201510026056.9A CN201510026056A CN104675437A CN 104675437 A CN104675437 A CN 104675437A CN 201510026056 A CN201510026056 A CN 201510026056A CN 104675437 A CN104675437 A CN 104675437A
- Authority
- CN
- China
- Prior art keywords
- moving plate
- rotating shaft
- fluid mechanism
- scroll fluid
- eddy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 50
- 239000012530 fluid Substances 0.000 title claims abstract description 49
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000010304 firing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007248 cellular mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F01C1/0207—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F01C1/023—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where both members are moving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F01C1/0207—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F01C1/0246—Details concerning the involute wraps or their base, e.g. geometry
- F01C1/0253—Details concerning the base
- F01C1/0261—Details of the ports, e.g. location, number, geometry
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/023—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where both members are moving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0253—Details concerning the base
- F04C18/0261—Details of the ports, e.g. location, number, geometry
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a double-rotary-shaft vortex fluid mechanism and a device comprising the double-rotary-shaft vortex fluid mechanism. The double-rotary-shaft vortex fluid mechanism comprises a rotary shaft A, a rotary shaft B, a moving disc A and a moving disc B, wherein the moving disc A and the moving disc B are alternately arranged correspondingly; a vortex structure is arranged on the side face of the moving disc A corresponding to the moving disc A and the moving disc B; a vortex structure is arranged on the side face of the moving disc B corresponding to the moving disc A and the moving disc B; the moving disc A is in fixed or transmission connection with the rotary shaft A; the moving disc B is in fixed or transmission connection with the rotary shaft B; the corresponding vortex structure on the moving disc A and the corresponding vortex structure on the moving disc B are matched. The double-rotary-shaft vortex fluid mechanism disclosed by the invention is small in axial force, small in frictional loss and high in work efficiency.
Description
Technical field
The present invention relates to heat energy and dynamic field, particularly relate to a kind of two rotating shaft scroll fluid mechanism, the invention still further relates to the gas compressor, the motor that comprise described pair of rotating shaft scroll fluid mechanism.
Background technique
Vortex (vortex ring) hydraulic mechanism (compressor, pump, decompressor, its english name is scroll compressor, scroll expander) there is many advantages, also be employed increasingly widely, but its axial force is large, frictional loss is large, and the gap that the wearing and tearing to cause greatly because of axial force form the face that is sealed and matched increases, and then the problem affecting working efficiency is never resolved.
Summary of the invention
In order to solve the problem, the technological scheme that the present invention proposes is as follows:
Scheme 1, a kind of two rotating shaft scroll fluid mechanism, comprises running shaft A, running shaft B, Moving plate A and Moving plate B, and described Moving plate A and described Moving plate B is alternately corresponding to be arranged; Eddy's structure is established in the side of the described Moving plate A described Moving plate A corresponding with described Moving plate B; Eddy's structure is established in the side of the described Moving plate A described Moving plate B corresponding with described Moving plate B; Described Moving plate A and described running shaft A is connected or is in transmission connection; Described Moving plate B and described running shaft B is connected or is in transmission connection; Described eddy's structure on corresponding described Moving plate A and the described eddy's structure on described Moving plate B match.
Scheme 2, on the basis of scheme 1, described running shaft A and non-suit of described running shaft B are arranged.
Scheme 3, on the basis of scheme 1, described running shaft A and described running shaft B is set with and arranges.
Scheme 4, in scheme 1 to 3 either a program basis on, be set to 3D eddy's structure at least partially in all described eddy's structures.
Scheme 5, in scheme 1 to 3 either a program basis on, corresponding described eddy's structure forms runner, at least two described runner serial communication.
Scheme 6, a kind of gas compressor comprising two rotating shaft scroll fluid mechanism described in either a program in scheme 1 to 5, the heart passway far away of described pair of rotating shaft scroll fluid mechanism is set to gas access.
Scheme 7, a kind of motor comprising two rotating shaft scroll fluid mechanism described in either a program in scheme 1 to 5, the nearly heart passway of described pair of rotating shaft scroll fluid mechanism is set to working medium entrance.
Scheme 8, on the basis of scheme 7, the described near heart passway of described pair of rotating shaft scroll fluid mechanism is communicated with working medium source.
Scheme 9, on the basis of scheme 8, the communicating passage between the described near heart passway and described working medium source of described pair of rotating shaft scroll fluid mechanism establishes working medium control valve.
Scheme 10, on the basis of scheme 7, the described near heart passway of described pair of rotating shaft scroll fluid mechanism and combustion chamber.
Scheme 11, on the basis of scheme 10, the communicating passage between the described near heart passway and described firing chamber of described pair of rotating shaft scroll fluid mechanism establishes working medium control valve.
Scheme 12, a kind of motor comprising two rotating shaft scroll fluid mechanism described in either a program in scheme 1 to 5, arranges firing chamber at the nearly heart passway place of described pair of rotating shaft scroll fluid mechanism.
In the present invention, so-called " X " and " Y " be in transmission connection refer between all X and Y there is drive connection relation is set, the gear on such as, gear drive Y on X or between the two through the driving relationship of other gear, described gear can be internal tooth or external tooth.
In the present invention, so-called " eddy's structure " refers to the structure be made up of helix being arranged on described Moving plate A or being arranged on described Moving plate B.
In the present invention, described eddy's structure can be made up of more than one or two helix.
In the present invention, so-called " helix " refers to that all can meet described Moving plate A and the line style be sealed and matched required for condition required for described Moving plate B, such as circle involute, regular polygon involute (even number or odd number polygonal), Made up of Line Segment Involute, half circle involute, spiral of Archimedes, algebraic spiral line, reducing circle involute, envelope molded line and universal line etc.
In the present invention, so-called " working medium source " refers to system, unit or the storage tank that can provide the gas working medium with certain pressure and uniform temperature, such as: boiler, firing chamber, heater, vaporizer, compressed gas source etc.
In the present invention, described pair of rotating shaft scroll fluid mechanism at least comprises two working medium passwaies, and is distributed on different radiuses, and being in the less passway of radius is nearly heart passway, and being in the larger passway of radius is heart passway far away.
In the present invention, the what is called " 3D " in described 3D eddy's structure refers to that the height of eddy's structure on the radial direction of described Moving plate A or described Moving plate B is different.
In the present invention, should according to known technology determination swirl direction, to realize the function of convection cell mechanism sets.
In the present invention, optionally select: the swirl direction of the eddy's structure on same described Moving plate A can be identical, also can be different.
In the present invention, optionally select: the swirl direction of the eddy's structure on same described Moving plate B can be identical, also can be different.
In the present invention, according to the known technology of heat energy and dynamic field, necessary parts, unit or system etc. should be set in the place of necessity.
Beneficial effect of the present invention is as follows: the axial force of described pair of rotating shaft scroll fluid mechanism of the present invention is little, frictional loss is little, and working efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the embodiment of the present invention 2;
Fig. 3 is the structural representation of the embodiment of the present invention 3;
Fig. 4 is the structural representation of the embodiment of the present invention 4;
Fig. 5 is the structural representation of the embodiment of the present invention 5;
Fig. 6 is the structural representation of the embodiment of the present invention 6;
Embodiment
Embodiment 1
Two rotating shaft scroll fluid mechanisms as shown in Figure 1, comprise running shaft A1, running shaft B2, Moving plate A3 and Moving plate B4, and described Moving plate A3 and described Moving plate B4 is alternately corresponding to be arranged; Eddy's structure 5 is established in the side of the described Moving plate A3 described Moving plate A3 corresponding with described Moving plate B4; Eddy's structure 5 is established in the side of the described Moving plate A3 described Moving plate B4 corresponding with described Moving plate B4; Described Moving plate A3 and described running shaft A1 is connected; Described Moving plate B4 and described running shaft B2 is connected; Described eddy's structure 5 on corresponding described Moving plate A3 and the described eddy's structure 5 on described Moving plate B4 match, and described running shaft A1 and described running shaft B2 is set with and arranges.
Embodiment 2
Two rotating shaft scroll fluid mechanisms as shown in Figure 2, the difference of itself and embodiment 1 is: described running shaft A1 and non-suit of described running shaft B2 are arranged.
Embodiment 3
Two rotating shaft scroll fluid mechanisms as shown in Figure 3, comprise running shaft A1, running shaft B2, Moving plate A3 and Moving plate B4, and described Moving plate A3 and described Moving plate B4 is alternately corresponding to be arranged; Eddy's structure 5 is established in the side of the described Moving plate A3 described Moving plate A3 corresponding with described Moving plate B4; Eddy's structure 5 is established in the side of the described Moving plate A3 described Moving plate B4 corresponding with described Moving plate B4; Described Moving plate A3 and described running shaft A1 is in transmission connection; Described Moving plate B4 and described running shaft B2 is in transmission connection; Described eddy's structure 5 on corresponding described Moving plate A3 and the described eddy's structure 5 on described Moving plate B4 match.Described running shaft A1 and described running shaft B2 is set with and arranges.
As the mode of execution that can convert, described running shaft A1 and non-suit of described running shaft B2 are arranged.
Embodiment 4
Two rotating shaft scroll fluid mechanisms as shown in Figure 4, comprise running shaft A1, running shaft B2, Moving plate A3 and Moving plate B4, and described Moving plate A3 and described Moving plate B4 is alternately corresponding to be arranged; Eddy's structure 5 is established in the side of the described Moving plate A3 described Moving plate A3 corresponding with described Moving plate B4; Eddy's structure 5 is established in the side of the described Moving plate A3 described Moving plate B4 corresponding with described Moving plate B4; Described Moving plate A3 and described running shaft A1 is in transmission connection; Described Moving plate B4 and described running shaft B2 is connected; Described eddy's structure 5 on corresponding described Moving plate A3 and the described eddy's structure 5 on described Moving plate B4 match.Described running shaft A1 and described running shaft B2 is set with and arranges.
As the mode of execution that can convert, described running shaft A1 and non-suit of described running shaft B2 are arranged.
Embodiment 5
Two rotating shaft scroll fluid mechanisms as shown in Figure 5, the difference of itself and embodiment 1 is: be set to 3D eddy's structure 51 at least partially in all described eddy's structures 5.
Embodiment 2 to embodiment 4 and the mode of execution obtained at the basic up conversion of embodiment 1 to embodiment 4, also all can refer to the present embodiment, is set to 3D eddy's structure at least partially by all described eddy's structures 5.
All mode of executions above, all selectively, corresponding described eddy's structure 5 forms runner, at least two described runner serial communication.
Embodiment 6
The motor comprising two rotating shaft scroll fluid mechanism described in embodiment 1 as shown in Figure 6, the nearly heart passway of described pair of rotating shaft scroll fluid mechanism is communicated with working medium source 6, and the communicating passage between the described near heart passway and described working medium source of described pair of rotating shaft scroll fluid mechanism establishes working medium control valve 7.
As the mode of execution that can convert, described working medium control valve 7 also can not be established.
As the mode of execution that can convert, the described near heart passway of described pair of rotating shaft scroll fluid mechanism changes and is set to and combustion chamber, the communicating passage between the described near heart passway and described firing chamber of described pair of rotating shaft scroll fluid mechanism is established or does not establish working medium control valve.
As the mode of execution that can convert, firing chamber is set at the nearly heart passway place of described pair of rotating shaft scroll fluid mechanism.
Described pair of rotating shaft scroll fluid mechanism in described pair of all replaceable the present embodiment of rotating shaft scroll fluid mechanism in the mode of execution of above-mentioned all described pair of rotating shaft scroll fluid mechanisms and the mode of execution that obtains at the basic up conversion of the present embodiment.
The mode of execution of described pair of rotating shaft scroll fluid mechanisms all in the present invention, all can be set to gas access by the heart passway far away of described pair of rotating shaft scroll fluid mechanism, it can be used as the structure in gas compressor.
Obviously, the invention is not restricted to above embodiment, according to known technology and the technological scheme disclosed in this invention of related domain, can to derive or association goes out many flexible programs, all these flexible programs, also should think protection scope of the present invention.
Claims (10)
1. a two rotating shaft scroll fluid mechanism, comprise running shaft A (1), running shaft B (2), Moving plate A (3) and Moving plate B (4), it is characterized in that: described Moving plate A (3) and described Moving plate B (4) are alternately corresponding to be arranged; Eddy's structure (5) is established in the side of described Moving plate A (3) and the corresponding described Moving plate A (3) of described Moving plate B (4); Eddy's structure (5) is established in the side of described Moving plate A (3) and the corresponding described Moving plate B (4) of described Moving plate B (4); Described Moving plate A (3) and described running shaft A (1) are connected or are in transmission connection; Described Moving plate B (4) and described running shaft B (2) are connected or are in transmission connection; Described eddy's structure (5) on corresponding described Moving plate A (3) and the described eddy's structure (5) on described Moving plate B (4) match.
2. two rotating shaft scroll fluid mechanism as claimed in claim 1, is characterized in that: described running shaft A (1) and non-suit of described running shaft B (2) are arranged.
3. two rotating shaft scroll fluid mechanism as claimed in claim 1, is characterized in that: described running shaft A (1) and described running shaft B (2) are set with and arrange.
4. two rotating shaft scroll fluid mechanism according to any one of claims 1 to 3, is characterized in that: be set to 3D eddy's structure (51) at least partially in all described eddy's structures (5).
5. two rotating shaft scroll fluid mechanism according to any one of claims 1 to 3, is characterized in that: corresponding described eddy's structure (5) forms runner, at least two described runner serial communication.
6. comprise a gas compressor for two rotating shaft scroll fluid mechanism according to any one of claim 1 to 5, it is characterized in that: the heart passway far away of described pair of rotating shaft scroll fluid mechanism is set to gas access.
7. comprise a motor for two rotating shaft scroll fluid mechanism according to any one of claim 1 to 5, it is characterized in that: the nearly heart passway of described pair of rotating shaft scroll fluid mechanism is set to working medium entrance.
8. motor as claimed in claim 7, is characterized in that: the described near heart passway of described pair of rotating shaft scroll fluid mechanism is communicated with working medium source (6).
9. motor as claimed in claim 8, is characterized in that: in the communicating passage between the described near heart passway and described working medium source (6) of described pair of rotating shaft scroll fluid mechanism, establish working medium control valve (7).
10. motor as claimed in claim 7, is characterized in that: the described near heart passway of described pair of rotating shaft scroll fluid mechanism and combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510026056.9A CN104675437A (en) | 2014-01-20 | 2015-01-19 | Double-rotary-shaft vortex fluid mechanism and device comprising same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014100244171 | 2014-01-20 | ||
| CN201410024417 | 2014-01-20 | ||
| CN201510026056.9A CN104675437A (en) | 2014-01-20 | 2015-01-19 | Double-rotary-shaft vortex fluid mechanism and device comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104675437A true CN104675437A (en) | 2015-06-03 |
Family
ID=53310965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510026056.9A Pending CN104675437A (en) | 2014-01-20 | 2015-01-19 | Double-rotary-shaft vortex fluid mechanism and device comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104675437A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084140A (en) * | 2016-02-15 | 2017-08-22 | 熵零技术逻辑工程院集团股份有限公司 | Scroll fluid passage compressor |
| WO2023125948A1 (en) * | 2021-12-31 | 2023-07-06 | 丹佛斯（天津）有限公司 | Compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4610610A (en) * | 1984-08-16 | 1986-09-09 | Sundstrand Corporation | Unloading of scroll compressors |
| US4781550A (en) * | 1986-02-17 | 1988-11-01 | Mitsubishi Denki Kabushiki Kaisha | Scroll compressor with driving and driven scrolls |
| JPH0835492A (en) * | 1994-07-25 | 1996-02-06 | Daikin Ind Ltd | Co-rotating scroll fluid machine |
| CN1335915A (en) * | 1998-10-13 | 2002-02-13 | 迈德技术公司 | Scroll-type fluid displacement device for vacuum pump application |
| CN101324235A (en) * | 2008-07-24 | 2008-12-17 | 浙江惟思特科技有限公司 | Constant low-temperature cooling oil-free vortex air compressor |
-
2015
- 2015-01-19 CN CN201510026056.9A patent/CN104675437A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4610610A (en) * | 1984-08-16 | 1986-09-09 | Sundstrand Corporation | Unloading of scroll compressors |
| US4781550A (en) * | 1986-02-17 | 1988-11-01 | Mitsubishi Denki Kabushiki Kaisha | Scroll compressor with driving and driven scrolls |
| JPH0835492A (en) * | 1994-07-25 | 1996-02-06 | Daikin Ind Ltd | Co-rotating scroll fluid machine |
| CN1335915A (en) * | 1998-10-13 | 2002-02-13 | 迈德技术公司 | Scroll-type fluid displacement device for vacuum pump application |
| CN101324235A (en) * | 2008-07-24 | 2008-12-17 | 浙江惟思特科技有限公司 | Constant low-temperature cooling oil-free vortex air compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084140A (en) * | 2016-02-15 | 2017-08-22 | 熵零技术逻辑工程院集团股份有限公司 | Scroll fluid passage compressor |
| WO2023125948A1 (en) * | 2021-12-31 | 2023-07-06 | 丹佛斯（天津）有限公司 | Compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102644588B (en) | Fluid pressure and mechanical energy converter | |
| CN104454032A (en) | Steam seal method and structure for steam turbine | |
| CN104675437A (en) | Double-rotary-shaft vortex fluid mechanism and device comprising same | |
| CN203604682U (en) | Electro-hydraulic large torque pore plate throttling valve | |
| CN104728105A (en) | Axial force balance vortex fluid mechanism and device comprising same | |
| CN103758877A (en) | Spline connection structure for servo motor | |
| CN103277146A (en) | Symmetrical lateral tooth steam sealing structure | |
| CN203770439U (en) | Spline connecting structure for servo motor | |
| CN202301025U (en) | Roots compressor | |
| CN104929700A (en) | Spiral multi-section combined type sealing labyrinth | |
| CN203640901U (en) | Bi-turbine driving device for pneumatic motor | |
| CN101839153B (en) | Low-entropy turbine | |
| CN105041644A (en) | Vortex gas mechanism and devices comprising same | |
| CN201650370U (en) | Full-flow vapor-liquid screw power machine with cooling jacket | |
| CN205592624U (en) | High pressure gear oil pump | |
| CN205277504U (en) | Mechanism reaches device including it to rotary impeller | |
| CN102132008A (en) | Reduction of thermal loads on housings for fluid machines | |
| CN103075204A (en) | Back steam seal device of steam turbine | |
| CN104963859A (en) | Vane type cam air blower | |
| CN201730644U (en) | Low-entropy turbine | |
| CN205089534U (en) | Solar photo -thermal power generation system | |
| CN107489611B (en) | Small impact gear type oil pump | |
| CN207229468U (en) | A kind of horizontal vortex pump with cooling pre-washing function | |
| CN212774761U (en) | Sealing mechanism of high-temperature steam Roots compressor | |
| CN204113758U (en) | A kind of pump shaft balanced controls of multistage acid resistant alkali centrifugal pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |