CN109596336A - The detection device of turbocharger core members - Google Patents
The detection device of turbocharger core members Download PDFInfo
- Publication number
- CN109596336A CN109596336A CN201910072608.8A CN201910072608A CN109596336A CN 109596336 A CN109596336 A CN 109596336A CN 201910072608 A CN201910072608 A CN 201910072608A CN 109596336 A CN109596336 A CN 109596336A
- Authority
- CN
- China
- Prior art keywords
- pressure side
- core members
- whirlpool
- valve
- cylinder
- 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
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
Abstract
The present invention provides a kind of detection device of turbocharger core members, comprising: pressure side closure member, whirlpool end seal closing member, import blocking piece, refluxing opening blocking piece；The whirlpool end seal closing member is used to carry and close the whirlpool end of turbocharger core members；Whirlpool end seal closing member is equipped with whirlpool and brings out gas detection mouth；The top of whirlpool end seal closing member is arranged in the pressure side closure member, for pushing down the pressure side side of turbocharger core members from top to bottom, and closes the pressure side；Pressure side outlet detection mouth is equipped on pressure side closure member；The side below pressure side closure member is arranged in import blocking piece, positioned at the top of whirlpool end seal closing member；Inlet channel is equipped with inside import blocking piece；The other side is arranged below pressure side closure member in refluxing opening blocking piece, positioned at the top of whirlpool end seal closing member；Outlet passageway is equipped in refluxing opening blocking piece；The present invention is capable of detecting when that part neglected loading, accidentally dress or unqualified part or middle case shell have trachoma casting flaw for detecting to turbocharger core members.
Description
Technical field
The present invention relates to a kind of detection device, especially a kind of detection device of turbocharger core members.
Background technique
It is generally equipped with the oil duct for lubrication in turbocharger, is additionally provided in some turbocharger for cooling
Water channel；Turbocharger is in assembly, it is understood that there may be part neglected loading misses the case where dress, unqualified part；Turbocharger middle case
Shell tiny trachoma if it exists, can also have the possibility of gas leakage.
In order to be detected after mounting to turbocharger core members, prevent middle case shell leak or part neglected loading,
Accidentally dress etc., needs a kind of special detection device.
Summary of the invention
It is an object of the present invention to overcome the shortcomings of the prior art and provide a kind of inspections of turbocharger core members
Device is surveyed, turbocharger core members can be detected, detects part neglected loading, accidentally dress or unqualified part or middle case shell
Body has trachoma casting flaw.The technical solution adopted by the present invention is that:
A kind of detection device of turbocharger core members, comprising: pressure side closure member, whirlpool end seal closing member, import blocking piece, refluxing opening
Blocking piece；
The whirlpool end seal closing member is used to carry and close the whirlpool end of turbocharger core members；Whirlpool end seal closing member is brought out equipped with whirlpool
Gas detection mouth；
The top of whirlpool end seal closing member is arranged in the pressure side closure member, for pushing down the pressure of turbocharger core members from top to bottom
End side, and the pressure side is closed, while turbocharger core members being pressed in the end seal closing member of whirlpool；It is set on pressure side closure member
There is pressure side outlet detection mouth；Pressure side closure member can be moved up and down by the driving of the first driving mechanism；
The side below pressure side closure member is arranged in import blocking piece, positioned at the upper side of whirlpool end seal closing member；Inside import blocking piece
Equipped with inlet channel, the front end of inlet channel is used to dock the oil inlet or water inlet of turbocharger core members, inlet channel
Rear end be used to be passed through the pressed gas of detection；Import blocking piece being capable of transverse shifting by the driving of the second driving mechanism；
The other side is arranged below pressure side closure member in refluxing opening blocking piece, positioned at the top other side of whirlpool end seal closing member；Refluxing opening is stifled
Outlet passageway is equipped in part, the front end of outlet passageway is used to dock the oil return opening or water return outlet of turbocharger core members, outlet
The rear end in channel is equipped with reflux outlet detection mouth；Refluxing opening blocking piece being capable of transverse shifting by the driving of third driving mechanism；
Further, detection device further include: reflux plugging valve, whirlpool end plugging valve, pressure side plugging valve；
The plugging valve that flows back passes through piping connection reflux outlet detection mouth；Whirlpool end plugging valve brings out gas detection by piping connection whirlpool
Mouthful；Pressure side plugging valve passes through piping connection pressure side outlet detection mouth.
Further, detection device further include: first pressure controller, flowmeter, inlet valve；
For connecing gas source, the other end connects flowmeter by pipeline for first pressure controller one end；Flowmeter by piping connection into
Mouth valve, inlet valve pass through the rear end in piping connection air inlet blocking piece upper air channel.
Further, a gas tank is additionally provided on the pipeline between first pressure controller and flowmeter.
Further, a pressure gauge is equipped on the pipeline between first pressure controller and flowmeter.
Further, the first driving mechanism uses upper air cylinder, and the second driving mechanism uses import cylinder, third driving machine
Structure uses refluxing opening cylinder；
The detection device further include: second pressure controller, on calm the anger cylinder valve, import cylinder valve, refluxing opening cylinder valve；
For connecing gas source, the other end passes through cylinder valve of calming the anger in piping connection, import cylinder respectively for one end of second pressure controller
Valve, refluxing opening cylinder valve；
On cylinder valve of calming the anger pass through air cylinder in piping connection；Import cylinder valve passes through piping connection import cylinder；Refluxing opening cylinder
Valve passes through piping connection refluxing opening cylinder.
Further, end seal closing member in whirlpool is the cylinder of a upper end opening；The upper limb of whirlpool end seal closing member is equipped with O-shaped sealing
Circle.
Further, pressure side closure member uses the back-off bowl bodies or cylinder of lower ending opening；The lower edge of pressure side closure member is set
There is O-ring seal.
Turbocharger core members are detected the present invention has the advantages that the present invention is convenient, gas can be judged automatically
Whether body flow meets testing requirements, in setting time and admission pressure, is detected by the uninterrupted of gas leakage
Part neglected loading, accidentally dress or unqualified part or middle case shell have trachoma casting flaw；Simultaneously in middle case oil duct inner cavity, water channel
The leakage rate of chamber is detected.
Detailed description of the invention
Fig. 1 is structure composition schematic diagram of the invention.
Fig. 2 is the principle of the present invention figure.
Specific embodiment
Below with reference to specific drawings and examples, the invention will be further described.
As shown in Figure 1 and Figure 2, the turbocharger core members a assembled, inside be equipped with oil leab, including pressure side a1,
Whirlpool end a2, oil inlet a3, oil return opening a4；After turbocharger core members are assemblied on vehicle, whirlpool end a2 is driven by engine exhaust
It moves and rotates, drive pressure side a1 rotation, the air inlet of engine is pressurized；It is also set inside some turbocharger core members a
There is cooling water channel, correspondingly, being equipped with water inlet and water return outlet；
The detection device of turbocharger core members proposed by the present invention, comprising: pressure side closure member 1, whirlpool end seal closing member 2, import
Blocking piece 3, refluxing opening blocking piece 4；
The whirlpool end seal closing member 2 is the cylinder of a upper end opening；Whirlpool end seal closing member 2 is mounted on the rack, for carrying turbine
The whirlpool end a2 of charger central part a, and when turbocharger core members a is by downward pressure, to turbocharger core
The whirlpool end a2 of part a is closed；The upper limb of whirlpool end seal closing member 2 is equipped with O-ring seal 202；Whirlpool end seal closing member 2 is equipped with a whirlpool
Bring out gas detection mouth 201；
The top of whirlpool end seal closing member 2 is arranged in the pressure side closure member 1, for pushing down turbocharger core members a from top to bottom
The side pressure side a1, and close the pressure side a1, while turbocharger core members a being pressed in whirlpool end seal closing member 2；Pressure side envelope
Closing member 1 uses the back-off bowl bodies or cylinder of lower ending opening；The lower edge of pressure side closure member 1 is equipped with O-ring seal 102；In pressure side
Closure member 1 is equipped with pressure side outlet detection mouth 101；
Upper air cylinder 5 is connected above pressure side closure member 1, upper air cylinder 5 is for pushing pressure side closure member 1 to move up and down, to moving down
Turbocharger core members a is pushed down when dynamic, replacing turbocharger core members a to be detected when moving up；
Import blocking piece 3 is used to block the oil inlet a3 or water inlet of turbocharger core members a, is arranged under pressure side closure member 1
The side of side, positioned at the upper side of whirlpool end seal closing member 2；Inlet channel 301 is equipped with inside import blocking piece 3, inlet channel 301
Front end is used to dock the oil inlet a3 or water inlet of turbocharger core members a, and the rear end of inlet channel 301 is for being passed through detection
Pressed gas；3 rear end of import blocking piece connects import cylinder 6, being capable of transverse shifting by the promotion of import cylinder 6；
Refluxing opening blocking piece 4 is used to block the oil return opening a4 or water return outlet of turbocharger core members a, is arranged in pressure side closure member 1
The lower section other side, positioned at the top other side of whirlpool end seal closing member 2；Outlet passageway 401, outlet passageway are equipped in refluxing opening blocking piece 4
401 front end is used to dock the oil return opening a4 or water return outlet of turbocharger core members a, and the rear end of outlet passageway 401 is equipped with back
Flow out gas detection mouth 402；The rear end of refluxing opening blocking piece 4 connects refluxing opening cylinder 7, can be lateral by the promotion of refluxing opening cylinder 7
It is mobile；
For import blocking piece 3 under the promotion of import cylinder 6, refluxing opening blocking piece 4, can be simultaneously to centre under the promotion of refluxing opening cylinder 7
It is mobile, thus, the oil inlet a3(or water inlet of turbocharger core members a are blocked respectively) and turbocharger core members a
Oil return opening a4(or water return outlet)；
Above-mentioned each cylinder 5,6,7, can also be using other driving mechanism replacements such as electric cylinders or Linear Motor Drive Mechanism；
As shown in Fig. 2, the detection device of turbocharger core members proposed by the present invention, further includes: first pressure controller 8,
Gas tank 9, flowmeter 10, inlet valve 11, pressure gauge 12, second pressure controller 13, on calm the anger cylinder valve 14, import cylinder valve 15,
Refluxing opening cylinder valve 16, reflux plugging valve 17, whirlpool end plugging valve 18, pressure side plugging valve 19；
The plugging valve 17 that flows back passes through piping connection reflux outlet detection mouth 402；Whirlpool end plugging valve 18 is brought out by piping connection whirlpool
Gas detection mouth 201；Pressure side plugging valve 19 passes through piping connection pressure side outlet detection mouth 101；
For 8 one end of first pressure controller for connecing gas source, the other end connects flowmeter 10 by pipeline；In first pressure controller 8
One gas tank 9 can also be set on the pipeline between flowmeter 10；The gas pressure of gas source about 0.6Mpa, by first pressure
Gas pressure after controller 8 is 0.2Mpa, and gas tank 9 may make the gas pressure for detection to keep more stable；Pressure control
One pressure gauge 12 is set on the pipeline between device 8 and flowmeter 10, facilitates the pressure of observation detection gas；Flowmeter 10 passes through
Piping connection inlet valve 11, inlet valve 11 pass through the rear end in 3 upper air channel 301 of piping connection air inlet blocking piece；
For connecing gas source, the other end passes through calm the anger in piping connection cylinder valve 14, import respectively for one end of second pressure controller 13
Cylinder valve 15, refluxing opening cylinder valve 16；The gas of gas source after second pressure controller 13, gas pressure be 0.5Mpa~
0.6Mpa；
On cylinder valve 14 of calming the anger pass through air cylinder 5 in piping connection；Import cylinder valve 15 passes through piping connection import cylinder 6；Reflux
Implication cylinder valve 16 passes through piping connection refluxing opening cylinder 7；
The detection device carries out four kinds of detections:
1) flow back all closings of plugging valve 17, whirlpool end plugging valve 18, pressure side plugging valve 19, so that reflux outlet detection mouth 402, whirlpool
Bring out all closings of gas detection mouth 201, pressure side outlet detection mouth 101；Inlet valve 11 is connected, and the detection gas of 0.2Mpa are passed through whirlpool
The oil inlet a3 or water inlet of charger central part a are taken turns, the data Real-time Feedback of flowmeter 10 is to PLC；Under such detection pattern,
The flow of gas leakage needs to be less than 70ml/min, then it represents that turbocharger core members a detection is qualified；
2) by any two conducting in reflux plugging valve 17, whirlpool end plugging valve 18, pressure side plugging valve 19, next closing is remained；Make
Must flow back outlet detection mouth 402, whirlpool bring out gas detection mouth 201, any two closing in pressure side outlet detection mouth 101, retain one
A and extraneous conducting；Inlet valve 11 is connected, and gas flow is tested by flowmeter 10, in three kinds of possible situations, when setting
In, it is respectively corresponding with a range of flow, if the data of flowmeter illustrate turbocharger in corresponding range of flow
Core members a detection is qualified.
Thick line with the arrow indicates the direction of detection pressed gas in Fig. 1.
It should be noted last that the above specific embodiment is only used to illustrate the technical scheme of the present invention and not to limit it,
Although being described the invention in detail referring to example, those skilled in the art should understand that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit and scope of the technical solution of the present invention, should all cover
In the scope of the claims of the present invention.
Claims (8)
1. a kind of detection device of turbocharger core members characterized by comprising pressure side closure member (1), whirlpool end seal closing member
(2), import blocking piece (3), refluxing opening blocking piece (4)；
The whirlpool end seal closing member (2) is used to carry and close the whirlpool end (a2) of turbocharger core members (a)；Whirlpool end seal closing member
(2) it is equipped with whirlpool and brings out gas detection mouth (201)；
The pressure side closure member (1) is arranged in the top of whirlpool end seal closing member (2), for pushing down turbocharger core from top to bottom
Side pressure side (a1) of part (a), and the pressure side (a1) is closed, while turbocharger core members (a) are pressed in whirlpool end seal and are closed
On part (2)；Pressure side outlet detection mouth (101) is equipped on pressure side closure member (1)；Pressure side closure member (1) passes through the first driving machine
Structure driving can move up and down；
The side that import blocking piece (3) is arranged below pressure side closure member (1) is located at the upper side of whirlpool end seal closing member (2)；Import
Inlet channel (301) are equipped with inside blocking piece (3), the front end of inlet channel (301) is for docking turbocharger core members (a)
Oil inlet (a3) or water inlet, the rear end of inlet channel (301) are used to be passed through the pressed gas of detection；Import blocking piece (3) is logical
Crossing the driving of the second driving mechanism being capable of transverse shifting；
Refluxing opening blocking piece (4) setting other side below pressure side closure member (1), is located at the top other side of whirlpool end seal closing member (2)；
Outlet passageway (401) are equipped in refluxing opening blocking piece (4), the front end of outlet passageway (401) is for docking turbocharger core members
(a) rear end of oil return opening (a4) or water return outlet, outlet passageway (401) is equipped with reflux outlet detection mouth (402)；Refluxing opening blocking piece
It (4) being capable of transverse shifting by the driving of third driving mechanism.
2. the detection device of turbocharger core members as described in claim 1, which is characterized in that further include: reflux blocks
Valve (17), whirlpool end plugging valve (18), pressure side plugging valve (19)；
Reflux plugging valve (17) passes through piping connection and flows back outlet detection mouth (402)；Whirlpool end plugging valve (18) passes through piping connection
Whirlpool brings out gas detection mouth (201)；Pressure side plugging valve (19) passes through piping connection pressure side outlet detection mouth (101).
3. the detection device of turbocharger core members as claimed in claim 2, which is characterized in that further include: first pressure
Controller (8), flowmeter (10), inlet valve (11)；
For connecing gas source, the other end connects flowmeter (10) by pipeline for first pressure controller (8) one end；Flowmeter (10) passes through
Piping connection inlet valve (11), inlet valve (11) pass through the rear end in piping connection air inlet blocking piece (3) upper air channel (301).
4. the detection device of turbocharger core members as claimed in claim 3, which is characterized in that
A gas tank (9) is additionally provided on pipeline between first pressure controller (8) and flowmeter (10).
5. the detection device of turbocharger core members as claimed in claim 3, which is characterized in that
A pressure gauge (12) is equipped on pipeline between first pressure controller (8) and flowmeter (10).
6. the detection device of the turbocharger core members as described in claim 1,2,3,4 or 5, which is characterized in that
First driving mechanism uses upper air cylinder (5), and the second driving mechanism uses import cylinder (6), and third driving mechanism uses
Refluxing opening cylinder (7)；
The detection device further include: second pressure controller (13), on calm the anger cylinder valve (14), import cylinder valve (15), refluxing opening
Cylinder valve (16)；
One end of second pressure controller (13) for connecing gas source, the other end pass through respectively cylinder valve (14) of calming the anger in piping connection,
Import cylinder valve (15), refluxing opening cylinder valve (16)；
On calm the anger cylinder valve (14) pass through air cylinder (5) in piping connection；Import cylinder valve (15) passes through piping connection import cylinder
(6)；Refluxing opening cylinder valve (16) passes through piping connection refluxing opening cylinder (7).
7. the detection device of the turbocharger core members as described in claim 1,2,3,4 or 5, which is characterized in that
Whirlpool end seal closing member (2) is the cylinder of a upper end opening；The upper limb of whirlpool end seal closing member (2) is equipped with O-ring seal.
8. the detection device of the turbocharger core members as described in claim 1,2,3,4 or 5, which is characterized in that
Pressure side closure member (1) uses the back-off bowl bodies or cylinder of lower ending opening；The lower edge of pressure side closure member (1) is equipped with O-shaped close
Seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910072608.8A CN109596336A (en) | 2019-01-25 | 2019-01-25 | The detection device of turbocharger core members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910072608.8A CN109596336A (en) | 2019-01-25 | 2019-01-25 | The detection device of turbocharger core members |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109596336A true CN109596336A (en) | 2019-04-09 |
Family
ID=65966760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910072608.8A Pending CN109596336A (en) | 2019-01-25 | 2019-01-25 | The detection device of turbocharger core members |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109596336A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157182A (en) * | 2020-01-15 | 2020-05-15 | 东风汽车集团有限公司 | Engine oil sealing test method of supercharger |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1358991A (en) * | 2002-01-28 | 2002-07-17 | 北京理工大学 | Platform for detecting leakage of pressurizing device |
| CN2802489Y (en) * | 2005-06-17 | 2006-08-02 | 浙江工业大学 | High precision micro-gas leakage detection device |
| CN101782453A (en) * | 2008-08-18 | 2010-07-21 | 上海协昌霍宁实业发展有限公司 | Method for testing air tightness of middle shell of automobile turbocharger |
| CN202441480U (en) * | 2012-02-17 | 2012-09-19 | 浙江科劲涡轮增压器有限公司 | Turbo-supercharger |
| CN203758697U (en) * | 2013-12-30 | 2014-08-06 | 常州环能涡轮动力股份有限公司 | System for detecting leakage and balance of turbocharger core |
| CN104880288A (en) * | 2015-06-16 | 2015-09-02 | 湖南天雁机械有限责任公司 | Method and device for detecting airtightness of turbine box assembly |
| CN204831731U (en) * | 2015-06-16 | 2015-12-02 | 湖南天雁机械有限责任公司 | Turbine case subassembly leakproofness detection device |
| CN105863827A (en) * | 2016-06-08 | 2016-08-17 | 湖南天雁机械有限责任公司 | Sealing structure and method for pressure end and vortex end of ball bearing turbocharger |
| CN206847855U (en) * | 2017-04-21 | 2018-01-05 | 山东信德玛珂增压器股份有限公司 | A kind of middle case leaks hunting pressure testing device |
| CN207439664U (en) * | 2017-11-15 | 2018-06-01 | 江西昌河汽车有限责任公司 | By-pass valve actuator of turbocharger tests system |
| CN108332958A (en) * | 2018-01-11 | 2018-07-27 | 湖北三江航天红峰控制有限公司 | A kind of multifunction electromagnetic pneumatic stopping valve testing stand |
| CN108398218A (en) * | 2018-03-05 | 2018-08-14 | 天津英创汇智汽车技术有限公司 | Air-tightness detection device and detection method |
| CN209416683U (en) * | 2019-01-25 | 2019-09-20 | 江苏凯迪航控系统股份有限公司 | The detection device of turbocharger core members |
-
2019
- 2019-01-25 CN CN201910072608.8A patent/CN109596336A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1358991A (en) * | 2002-01-28 | 2002-07-17 | 北京理工大学 | Platform for detecting leakage of pressurizing device |
| CN2802489Y (en) * | 2005-06-17 | 2006-08-02 | 浙江工业大学 | High precision micro-gas leakage detection device |
| CN101782453A (en) * | 2008-08-18 | 2010-07-21 | 上海协昌霍宁实业发展有限公司 | Method for testing air tightness of middle shell of automobile turbocharger |
| CN202441480U (en) * | 2012-02-17 | 2012-09-19 | 浙江科劲涡轮增压器有限公司 | Turbo-supercharger |
| CN203758697U (en) * | 2013-12-30 | 2014-08-06 | 常州环能涡轮动力股份有限公司 | System for detecting leakage and balance of turbocharger core |
| CN104880288A (en) * | 2015-06-16 | 2015-09-02 | 湖南天雁机械有限责任公司 | Method and device for detecting airtightness of turbine box assembly |
| CN204831731U (en) * | 2015-06-16 | 2015-12-02 | 湖南天雁机械有限责任公司 | Turbine case subassembly leakproofness detection device |
| CN105863827A (en) * | 2016-06-08 | 2016-08-17 | 湖南天雁机械有限责任公司 | Sealing structure and method for pressure end and vortex end of ball bearing turbocharger |
| CN206847855U (en) * | 2017-04-21 | 2018-01-05 | 山东信德玛珂增压器股份有限公司 | A kind of middle case leaks hunting pressure testing device |
| CN207439664U (en) * | 2017-11-15 | 2018-06-01 | 江西昌河汽车有限责任公司 | By-pass valve actuator of turbocharger tests system |
| CN108332958A (en) * | 2018-01-11 | 2018-07-27 | 湖北三江航天红峰控制有限公司 | A kind of multifunction electromagnetic pneumatic stopping valve testing stand |
| CN108398218A (en) * | 2018-03-05 | 2018-08-14 | 天津英创汇智汽车技术有限公司 | Air-tightness detection device and detection method |
| CN209416683U (en) * | 2019-01-25 | 2019-09-20 | 江苏凯迪航控系统股份有限公司 | The detection device of turbocharger core members |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157182A (en) * | 2020-01-15 | 2020-05-15 | 东风汽车集团有限公司 | Engine oil sealing test method of supercharger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105043690A (en) | Valve automatic detection equipment | |
| CN203098881U (en) | Valve free from external leakage | |
| CN209416683U (en) | The detection device of turbocharger core members | |
| CN102720667B (en) | A kind of test method of engine oil pump pressure-limiting valve cracking pressure and device | |
| CN109596336A (en) | The detection device of turbocharger core members | |
| CN208605418U (en) | A kind of pilot type electromagnetic switch valve | |
| CN201876391U (en) | Test bench for testing water pressure strength of cylinder | |
| CN209247250U (en) | A kind of nuclear power station-service welded check valve leak tightness test device | |
| CN204831737U (en) | Valve automated inspection equipment | |
| CN110763402A (en) | Testing device for universal use of multiple valves | |
| CN209055285U (en) | A kind of experimental rig for examining valve high-low pressure to seal | |
| CN104502087B (en) | Pressure regulator testboard pneumatic means | |
| CN208187644U (en) | A kind of equipment for doing pressure rating test for valve body | |
| CN213516218U (en) | Device for testing air tightness of valve | |
| CN115876397A (en) | Testing device and method for detecting leakage rate of hydrogen-doped pipeline connecting piece and sealing piece | |
| CN202302115U (en) | Fluid seal combination cut-off valve | |
| CN109029956B (en) | Multifunctional water supply valve detection equipment | |
| CN211347237U (en) | Ordinary valve compression testing machine that accuracy is high | |
| CN104236821B (en) | Swivel seal detection means and its detection method | |
| CN212254584U (en) | Closed-loop pressure maintaining and pressurizing detection system | |
| CN209130369U (en) | A kind of oil pipeline receiving ball tube automatic exhaust device | |
| CN2368028Y (en) | Lifting water leakage checking machine | |
| CN209214866U (en) | Air tightness tester suitable for ship piping system | |
| CN202012649U (en) | One-way automatic air inlet valve | |
| CN206754819U (en) | A kind of natural gas line pressure testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |