CN106226048A - A kind of aperture device for testing flow and test method - Google Patents
A kind of aperture device for testing flow and test method Download PDFInfo
- Publication number
- CN106226048A CN106226048A CN201610559645.8A CN201610559645A CN106226048A CN 106226048 A CN106226048 A CN 106226048A CN 201610559645 A CN201610559645 A CN 201610559645A CN 106226048 A CN106226048 A CN 106226048A
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- oil
- aperture
- spigot joint
- sealing ring
- cavity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of aperture device for testing flow and test method, including oil supply system and test fixture, wherein, test fixture includes sealing ring, block, the Pressure gauge being sheathed on part, the inwall of sealing ring forms a cavity with the outer wall of part, aperture entrance is within the cavity, prop up block to be installed on sealing ring, prop up the oil-out that block is provided with little hole exits is connected spigot joint, the oil-in that sealing ring is provided with for being connected with oil supply system is spigot joint, and oil-in is spigot joint connects with cavity, Pressure gauge is connected on sealing ring communicate with cavity.By when clamping part to be measured, a cavity is formed between test fixture and part to be measured, aperture on part is within the cavity as one end of lubricating oil inlet, when carrying out aperture flow test, owing to the entrance of aperture is within the cavity, therefore the pressure in cavity can accurately reflect the pressure at aperture entrance, therefore can measure the pressure at aperture entrance accurately.
Description
Technical field
The present invention relates to flow test field, particularly to a kind of aperture device for testing flow and test method.
Background technology
In medium and small gas turbine, there is the part such as supply ring, bearing block, this type of part has Ф 0.5～Ф
The aperture of 1.8mm.When gas turbine work operating, aircraft lube oil flows through this type of aperture, plays the effect of lubrication,
And the pore size of aperture determines the flow of lubricating oil, therefore before using this type of part, need each aperture is carried out
Flow test, the aperture flow measured by aperture flow test and the pressure of aperture import department, if flow test is not up to wanted
Ask, then again test after needing small aperture is reprocessed.
The device of existing a kind of aperture flow rate test, compressed air source is connected by air inlet pipe by it with airtight container,
The export pipeline of airtight container is connected with sample clamp, is filled with experimental liquid in hermetic container, and export pipeline is provided with Pressure gauge,
By observing Pressure gauge and regulation compressed air source, the pressure making the experimental liquid that export pipeline exports is constant, and passes through outlet
Pressure on road represents the pressure on aperture at lubricating oil inlet, is keeping the situation that on aperture, lubricating oil inlet pressure is constant
Under, the output of lubricating oil outlet on aperture in record a period of time.If outlet output reaches the threshold value under this pressure condition,
Then represent that small aperture meets the requirements, otherwise, represent that small aperture is undesirable.Wherein, sample clamp is various sizes of
Joint, joint is directly connected with sample.
When using said apparatus that supply ring, this kind of part of bearing block are carried out aperture flow test, need sample clamp
On joint be directly connected with the aperture on part, owing to the aperture of this kind of part aperture is the least, and the two ends in hole are all at area
On the least inclined-plane or curved surface, assay device is difficult to ensure that in the sealing of joint, and junction is susceptible to experimental liquid
Revealing, the pressure that the Pressure gauge being therefore arranged on export pipeline records not is the reality on part aperture at lubricating oil inlet
Pressure, the result causing aperture flow test is inaccurate.
Summary of the invention
In order to solve in aperture flow test, on aperture, the pressure measxurement of lubricating oil inlet is inaccurate causes aperture flow to try
The inaccurate problem of result tested, embodiments provides a kind of aperture device for testing flow and test method.Described skill
Art scheme is as follows:
Embodiments provide a kind of aperture device for testing flow, it is adaptable to the aperture on ring-shaped work pieces sidewall is entered
Row aperture flow test, one end of described aperture is positioned on the outer wall of described part, and the other end of described aperture is positioned at described zero
On the inwall of part, described assay device includes: provide the oil supply system of lubricating oil, test fixture,
Described oil supply system include fuel tank, oil pump, connecting line and be arranged on described connecting line for regulating
Flow of lubrication and the combined valve of pressure, the input of described oil pump is connected with described fuel tank, described oil delivery side of pump with
The import of described connecting line is connected；
Sealing ring, oil-out that described test fixture includes being sheathed on described part are spigot joint, Pressure gauge, described sealing ring
Two end faces be connected with two end face seals of described part respectively, and the outer wall of the inwall of described sealing ring and described part
Form a cavity, one end being positioned at described part outer wall of described aperture at described cavity, described sealing ring be provided with
The oil-in that described connecting line connects is spigot joint, and the spigot joint and described cavity of described oil-in connects, and described Pressure gauge is connected to institute
State on sealing ring, described Pressure gauge for testing the pressure in described cavity, described oil-out is spigot joint be sealingly mounted at described little
The one end being positioned at described part inwall in hole.
Further, described assay device also includes that cramp frame, described cramp frame are installed in described part and described sealing
The two ends of ring.
Further, it is provided with sealing ring, under described part between upper end and the upper end of described sealing ring of described part
It is provided with sealing ring between end and the lower end of described sealing ring.
Further, the spigot joint and described aperture of described oil-out between one end of described part inwall, be additionally provided with O
RunddichtringO, the spigot joint and described aperture of described oil-out is tightly connected by described O RunddichtringO.
Further, described combined valve includes the ball valve being sequentially arranged on described connecting line, first throttle valve, subtracts
Pressure valve, second throttle.
Further, it is connected and has return line, on described return line between described oil delivery side of pump and described fuel tank
It is provided with overflow valve and Pressure gauge.
Further, described assay device is additionally operable to install the block that described oil-out is spigot joint, and described block is provided with use
In installing the installing hole that described oil-out is spigot joint.
The embodiment of the present invention additionally provides the test method of a kind of aperture flow test, and described test method uses as above institute
Stating assay device and carry out aperture flow test, described test method includes:
Part to be measured is arranged on described test fixture, makes one end being positioned at described part outer wall of described aperture install
In the described cavity formed between described part and described test fixture；
The outlet of described connecting line is connected to the described oil-in of described test fixture spigot joint on；
Start described oil pump, regulate described combined valve, the pressure in described cavity is adjusted to preset value；
After oil pressure is stable, in measuring one end time, described aperture is positioned at the lubricating oil that one end of described part inwall is flowed out
Volume, and according to described volume calculate described aperture flow.
Further, after being arranged on described test fixture by part to be measured, described test method also includes:
In described test fixture, it is continually fed into gas by described oil-in is spigot joint, observes each described oil-out and connect
Mouth, if having, described oil-out is spigot joint does not has air-out, then ressemble and do not have the described oil-out of air-out spigot joint, until all described
Oil-out is spigot joint all has wind to go out.
Further, on the described oil-in that the outlet of described connecting line is connected to described test fixture is spigot joint it
Before, described test method also includes,
Open each valve in described combined valve, start described oil pump, observe each parts in described oil supply system
There are non-loosening and oil leakage phenomenon in junction.
The technical scheme that the embodiment of the present invention provides has the benefit that by when clamping part to be measured, in examination
Testing one cavity of formation between fixture and part to be measured, the aperture on part is within the cavity as one end of lubricating oil inlet,
When carrying out aperture flow test, owing to the entrance of aperture is within the cavity, therefore the pressure in cavity can accurately reflect little
The pressure of porch, hole, therefore can measure the pressure at aperture entrance accurately.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only one embodiment of the present of invention, for
From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the overall structure schematic diagram of the pinhole test device that the embodiment of the present invention provides；
Fig. 2 a is the cross section structure schematic diagram of the test fixture that the embodiment of the present invention provides；
Fig. 2 b is the partial top view of the test fixture that the embodiment of the present invention provides；
Fig. 3 is the structural representation of the block that the embodiment of the present invention provides；
Fig. 4 is the schematic cross-section of the sealing ring that the embodiment of the present invention provides；
Fig. 5 is the flow chart of the test method that the embodiment of the present invention provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
The assay device that the embodiment of the present invention provides is applicable on sidewall set the aperture flow examination of foraminate ring-shaped work pieces
Testing, and aperture one end is positioned on the outer wall of part, the aperture other end is positioned on the inwall of part, can be accurate by this assay device
True measures the pressure of the lubricating oil of entrance one end of lubricating oil on aperture.
Fig. 1 is the overall structure schematic diagram of a kind of aperture device for testing flow that the embodiment of the present invention provides, and sees Fig. 1,
This device includes: provide the oil supply system 1 of lubricating oil, test fixture 2.
As it is shown in figure 1, oil supply system includes fuel tank 101, oil pump 102, connecting line 103 and is arranged on connecting line
The combined valve 104 for regulating flow of lubrication and pressure on 103, the input of oil pump 102 is connected with fuel tank 101, oil
The outfan of pump 102 is connected with the import of connecting line 103, and the outlet of connecting line 103 is connected on test fixture 2.
Fig. 2 a is the cross section structure schematic diagram of the test fixture that the embodiment of the present invention provides, and Fig. 2 b is that the embodiment of the present invention carries
The partial top view of the test fixture of confession, in conjunction with Fig. 2 a and Fig. 2 b, test fixture 2 includes the sealing ring being sheathed on part A
201, oil-out is spigot joint 204, Pressure gauge 203, and 201 two end faces of sealing ring are connected with two end face seals of part A respectively, and
The inwall of sealing ring 201 forms a cavity with the outer wall of part A, and one end being positioned at part A outer wall of aperture is within the cavity,
Sealing ring 201 is provided with for spigot joint with the oil-in that oil supply system 1 is connected 205, and oil-in spigot joint 205 connects with cavity,
Pressure gauge 203 is connected on sealing ring 201 connect with cavity by adaptor 203a, and oil-out spigot joint 204 is positioned at aperture
One end of part A inwall is tightly connected.
By when clamping part to be measured A, between test fixture 2 and part A to be measured, form a cavity, on part A
One end being positioned at part A outer wall as lubricating oil inlet of aperture within the cavity, when carrying out aperture flow test, by
On aperture, the entrance of lubricating oil is within the cavity, and therefore the pressure in cavity can accurately reflect on aperture at lubricating oil inlet
Pressure, therefore can measure the pressure at lubricating oil inlet on aperture accurately.
In the present embodiment, as a example by a kind of Process for Bearing Seat, this Process for Bearing Seat is ring-shaped work pieces, at the one of part
Individual end face is provided with flange, is provided with three apertures on the sidewall of part, and one end of each aperture is positioned on the outer wall of part, little
The other end in hole is positioned on the inwall of part, and each aperture is positioned at one end of part inwall and is provided with two interfaces.
Referring again to Fig. 1, oil-out spigot joint 204 is fixed by a block 202, and a block 202 is arranged on sealing ring by bolt a
On 201, Fig. 3 is the structural representation of the block that the embodiment of the present invention provides, and in conjunction with Fig. 3, a block 202 is provided with joins with bolt a
The installing hole 202a closed and the installing hole 202b being used for installing oil-out spigot joint 204, oil-out spigot joint 204 is arranged on a block 202
On, and make oil-out spigot joint 204 be pressed on aperture by block 202 to be positioned at one end of part A inwall with aperture and be tightly connected.
In the present embodiment, it is provided with two interfaces owing to each aperture is positioned at one end of part A inwall, thus corresponding at each block
Two oil-outs spigot joint 204 it are provided with, the most in other embodiments of the invention, it is also possible to according on aperture inwall on 202
The quantity of interface arranges the oil-out spigot joint 204 of other respective numbers and connects propping up the oil-out arranging respective numbers on block 202
The installing hole 202b of mouth 204.
As it is shown in figure 1, in the present embodiment, combined valve 104 includes the ball valve being sequentially arranged on connecting line 103
104a, first throttle valve 104b, air relief valve 104c, second throttle 104d, ball valve 104a is used for controlling connecting line 3 opening and closing,
First throttle valve 104b is flow of lubrication in coarse adjustment connecting line 103, and air relief valve 104c and second throttle 104d are used for
Accurately regulate lubricating oil pressure and the flow of connecting line 103 outlet.By combined valve 104, the pressure on compatibility test fixture 2
Power table 203, can be adjusted to preset value by the pressure in cavity accurately.
In the present embodiment, it is connected between the outfan of oil pump 102 with fuel tank 101 and has return line, return line sets
There are overflow valve 105 and Pressure gauge 106.Owing to certain pressure oscillation can be produced when oil pump 102 exports lubricating oil, pressed by observation
Power table 106 and the handwheel of regulation relief valve 105, regulate the force value in connecting line 3 to predetermined value, and overflow valve 105 will profit
When in lubricating oil, pressure produces fluctuation, the lubricating oil beyond preset pressure value drains back in fuel tank 101 by loop oil pipe, it is ensured that
Stablizing of the pressure of connecting line 3 input.
By Pressure gauge 106 and overflow valve 105, the lubricating oil exceeding preset pressure value is expelled back into oil by return line
Case, carries out coarse adjustment to the pressure of oil pump 102 outfan, it is simple to the accurate regulation of combined valve 104, and by overflow valve 105 also
Lubricating oil in connecting line 103 can be played the effect of steady pressure, reduce the fluctuation of lubricating oil pressure in oil supply system 1.
It addition, in the present embodiment, connecting line 103 is additionally provided with thermometer 107 and effusion meter 108, is used for detecting
The temperature of the lubricating oil in oil supply system 1 and flow.
As shown in Figure 2 a, in the present embodiment, fixed by cramp frame 206 between part A and sealing ring 201, cramp frame
206 two ends being installed in part A and sealing ring 201, and cramp frame 206 is arranged on part A and sealing ring 201 by bolt b,
By cramp frame 206 and bolt b, sealing ring 201 two ends are pressed together with part A two ends respectively.Other realities in the present invention
Execute in example, it would however also be possible to employ part A is fixed with sealing ring 201 by other mode, such as, use vice by sealing ring 201 and zero
Part A clamps, and the mode using cramp frame 206 is easier, and connects relatively stable, can arrange multiple on sealing ring 201
Cramp frame 206, the sealing that can make device is relatively reliable.
As it is shown in figure 1, be provided with sealing ring 207 between the upper end of the upper end of sealing ring 201 and part A, sealing ring 201 times
Being provided with sealing ring 207 between end and the lower end of part A, Fig. 4 is the schematic cross-section of the sealing ring that the embodiment of the present invention provides, knot
Closing Fig. 4, the upper end of sealing ring 201 extends internally and is provided with a circle boss 2011, and the lower end of boss 2011 is provided with mounting groove 2011a,
The end face of sealing ring 201 lower end is provided with mounting groove 2011b, and the lower end of part A is provided with flange, in mounting groove 2011a and installation
Being provided with sealing ring 207 in groove 2011b, the upper surface of part A is connected at mounting groove 2011a, the flange face of part A and peace
Connect at tankage 2011b, make sealing ring 201 and part A be tightly connected by sealing ring 207, part A and sealing ring 201 it
Between form a cavity, indirectly measure on aperture the pressure at lubricating oil inlet by measuring the pressure of the lubricating oil in cavity.
As it is shown in figure 1, oil-out spigot joint 204 and aperture between one end of part A inwall, be additionally provided with O RunddichtringO
208, oil-out spigot joint 204 and aperture are tightly connected by O RunddichtringO 208.As such, it is possible to prevent lubricating oil outlet on aperture
There are oil leakage, the flow of the lubricating oil in more accurate measurement aperture exit in place.
In the present embodiment, in order to simulate the operating mode of reality, the lubricating oil of employing is 8A aircraft lube oil
GB439-90, and pressure, flow and temperature that oil supply system provides meet the examination of each part flow such as gas engine supply ring, bearing block
Test required rated pressure, flow and temperature: rated pressure is 0.5 ± 0.02Mpa, flow 10～18 ± 1.5L/min, oil
Liquid normal working temperature 15～30 °.When adding lubricating oil in fuel tank, filtered by air filter, the filtering accuracy of air filter
It it is 10 microns.
The embodiment of the present invention additionally provides the test method of a kind of aperture flow test, and this test method uses as mentioned above
Assay device carries out aperture flow test, as it is shown in figure 5, this test method includes:
Step 301: be arranged on test fixture by part to be measured, makes one end being positioned at part outer wall of aperture be installed on zero
In the cavity formed between part and test fixture；
Step 302: the outlet of connecting line is connected to the oil-in of test fixture spigot joint on；
Step 303: start oil pump, group valve for adjusting door, the pressure in cavity is adjusted to preset value；
Step 304: after oil pressure is stable, in measuring one end time, aperture is positioned at the lubricating oil that one end of part inwall is flowed out
Volume, and according to measure volume calculate aperture flow.
By when clamping part to be measured, between test fixture and part to be measured, form a cavity, little on part
The entrance in hole is within the cavity, and the outlet of the aperture on part is spigot joint with oil-out to be tightly connected, and is carrying out aperture flow test
Time, the volume of the liquid flowed out within a certain period of time by the spigot joint place of oil-out can calculate the flow of aperture, by arranging
Pressure gauge on sealing ring can read the pressure in cavity accurately, owing to the entrance of aperture is within the cavity, and therefore chamber
Internal pressure can accurately reflect the pressure at aperture entrance, therefore can measure the pressure at aperture entrance accurately.
In the present embodiment, step 301 specifically includes:
Sealing ring 201 is sleeved on part, and the upper end of the upper end of sealing ring 201 with part A is tightly connected, seal
The lower end of ring 201 is tightly connected with the lower end of part A, and the inwall of sealing ring 201 forms a cavity with the outer wall of part A, will
Oil-out spigot joint 204 is sealingly mounted at aperture and is positioned at one end of part A inwall.
After step 301, in order to check whether the outlet of aperture spigot joint with oil-out 204 connects, this test method is also
Including:
At oil-in spigot joint 205, in test fixture 2, being continually fed into gas, observing each oil-out spigot joint 204, if having
Oil-out spigot joint 204 does not has air-out, then ressemble the oil-out spigot joint 204 not having air-out, until all oil-outs spigot joint 204
Wind is all had to go out.
Before step 302, accurate for guarantee test, needing first to check in oil supply system 1 that various piece connects is
No meeting the requirements, this test method also includes,
Open each valve in combined valve 104, start oil pump 102, observe the junction of each parts in oil supply system 1
There are non-loosening and oil leakage phenomenon.If non-loosening and oil leakage phenomenon, then can carry out follow-up test, otherwise need loosening and leakage of oil
Place overhauls.The operation that the method is concrete is, is joined in fuel tank 101 by lubricating oil by air filter, opens ball valve 104a,
Unscrew overflow valve 105, first throttle valve 104b, air relief valve 104c, second throttle 104d, start oil pump 102, slowly regulate tune
The handwheel of joint overflow valve 105, when Pressure gauge 106 show value is 1Mpa, stops screwing handwheel, observes each hydraulic component and company
There are non-loosening and oil leakage phenomenon in the junction on adapter road 103.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. an aperture device for testing flow, it is adaptable to the aperture on ring-shaped work pieces sidewall is carried out aperture flow test, described
One end of aperture is positioned on the outer wall of described part, and the other end of described aperture is positioned on the inwall of described part, described test
Device includes: provide the oil supply system of lubricating oil, test fixture, it is characterised in that
Described oil supply system include fuel tank, oil pump, connecting line and be arranged on described connecting line for regulating lubrication
Oil flow and the combined valve of pressure, the input of described oil pump is connected with described fuel tank, and described oil delivery side of pump is with described
The import of connecting line is connected；
Sealing ring, oil-out that described test fixture includes being sheathed on described part are spigot joint, Pressure gauge, the two of described sealing ring
Individual end face is connected with two end face seals of described part respectively, and the outer wall of the inwall of described sealing ring and described part is formed
One cavity, one end being positioned at described part outer wall of described aperture is provided with described at described cavity, described sealing ring
The oil-in that connecting line connects is spigot joint, and the spigot joint and described cavity of described oil-in connects, and described Pressure gauge is connected to described close
In seal ring, described Pressure gauge is for testing the pressure in described cavity, and described oil-out is spigot joint is sealingly mounted at described aperture
It is positioned at one end of described part inwall.
Assay device the most according to claim 1, it is characterised in that described assay device also includes cramp frame, described bow
Clevis is installed in described part and the two ends of described sealing ring.
Assay device the most according to claim 1, it is characterised in that the upper end of described part and the upper end of described sealing ring
Between be provided with sealing ring, be provided with sealing ring between lower end and the lower end of described sealing ring of described part.
Assay device the most according to claim 1, it is characterised in that described oil-out is spigot joint is positioned at institute with described aperture
Stating and be additionally provided with O RunddichtringO between one end of part inwall, the spigot joint and described aperture of described oil-out passes through described O RunddichtringO
It is tightly connected.
Assay device the most according to claim 1, it is characterised in that described combined valve includes being sequentially arranged at described company
Ball valve on adapter road, first throttle valve, air relief valve, second throttle.
Assay device the most according to claim 1, it is characterised in that connect between described oil delivery side of pump and described fuel tank
Being connected to return line, described return line is provided with overflow valve and Pressure gauge.
Assay device the most according to claim 1, it is characterised in that described assay device is additionally operable to install described oil-out
A spigot joint block, described block is provided with for installing the installing hole that described oil-out is spigot joint.
8. a test method for aperture flow test, described test method uses to be tested as described in any one of claim 1-7
Device carries out aperture flow test, it is characterised in that described test method includes:
Part to be measured is arranged on described test fixture, makes one end being positioned at described part outer wall of described aperture be installed on institute
State in the described cavity formed between part and described test fixture；
The outlet of described connecting line is connected to the described oil-in of described test fixture spigot joint on；
Start described oil pump, regulate described combined valve, the pressure in described cavity is adjusted to preset value；
After oil pressure is stable, in measurement one end time, described aperture is positioned at the body of the lubricating oil of one end outflow of described part inwall
Long-pending, and the flow of described aperture is calculated according to described volume.
Test method the most according to claim 8, it is characterised in that part to be measured is being arranged on described test fixture
Afterwards, described test method also includes:
In described test fixture, it is continually fed into gas by described oil-in is spigot joint, observes each described oil-out spigot joint, if
Have that described oil-out is spigot joint does not has air-out, then ressemble and do not have the described oil-out of air-out spigot joint, until all described fuel-displaced
Mouth is spigot joint all has wind to go out.
Test method the most according to claim 8, it is characterised in that the outlet of described connecting line is being connected to institute
State the described oil-in of test fixture spigot joint upper before, described test method also includes,
Open each valve in described combined valve, start described oil pump, observe the connection of each parts in described oil supply system
There are non-loosening and oil leakage phenomenon in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610559645.8A CN106226048A (en) | 2016-07-15 | 2016-07-15 | A kind of aperture device for testing flow and test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610559645.8A CN106226048A (en) | 2016-07-15 | 2016-07-15 | A kind of aperture device for testing flow and test method |
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| CN106226048A true CN106226048A (en) | 2016-12-14 |
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| CN201610559645.8A Pending CN106226048A (en) | 2016-07-15 | 2016-07-15 | A kind of aperture device for testing flow and test method |
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|---|---|---|---|---|
| US4852390A (en) * | 1988-07-21 | 1989-08-01 | Oakland Engineering, Inc. | Wheel rim leak detection |
| CN1812865A (en) * | 2003-09-23 | 2006-08-02 | 挤压磨石有限公司 | Method and apparatus for measuring flow rate through and polishing a workpiece orifice |
| US20110174057A1 (en) * | 2006-10-10 | 2011-07-21 | Porous Materials, Inc. | Pore structure characterization of filtration cartridges at specific locations along cartridge length |
| CN202814474U (en) * | 2012-07-30 | 2013-03-20 | 中国南方航空工业(集团)有限公司 | Lubricating oil flow rate measuring device for checking component holes |
| CN204269161U (en) * | 2014-12-17 | 2015-04-15 | 曼胡默尔滤清器（上海）有限公司 | A kind of parts with small hole fluid flow proving installation |
| CN105319047A (en) * | 2015-10-20 | 2016-02-10 | 四川成发航空科技股份有限公司 | Aero-engine casing through-flow pore flow testing method and implementation device thereof |
-
2016
- 2016-07-15 CN CN201610559645.8A patent/CN106226048A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4852390A (en) * | 1988-07-21 | 1989-08-01 | Oakland Engineering, Inc. | Wheel rim leak detection |
| CN1812865A (en) * | 2003-09-23 | 2006-08-02 | 挤压磨石有限公司 | Method and apparatus for measuring flow rate through and polishing a workpiece orifice |
| US20110174057A1 (en) * | 2006-10-10 | 2011-07-21 | Porous Materials, Inc. | Pore structure characterization of filtration cartridges at specific locations along cartridge length |
| CN202814474U (en) * | 2012-07-30 | 2013-03-20 | 中国南方航空工业(集团)有限公司 | Lubricating oil flow rate measuring device for checking component holes |
| CN204269161U (en) * | 2014-12-17 | 2015-04-15 | 曼胡默尔滤清器（上海）有限公司 | A kind of parts with small hole fluid flow proving installation |
| CN105319047A (en) * | 2015-10-20 | 2016-02-10 | 四川成发航空科技股份有限公司 | Aero-engine casing through-flow pore flow testing method and implementation device thereof |
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Application publication date: 20161214 |
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| RJ01 | Rejection of invention patent application after publication |