CN109779885A - A kind of air compressor minimum pressure valve - Google Patents
A kind of air compressor minimum pressure valve Download PDFInfo
- Publication number
- CN109779885A CN109779885A CN201910191847.5A CN201910191847A CN109779885A CN 109779885 A CN109779885 A CN 109779885A CN 201910191847 A CN201910191847 A CN 201910191847A CN 109779885 A CN109779885 A CN 109779885A
- Authority
- CN
- China
- Prior art keywords
- platen
- valve
- gasket seal
- piston
- minimum pressure
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Landscapes
- Compressor (AREA)
Abstract
The present invention discloses a kind of air compressor minimum pressure valve, including valve body and Spool assembly, Spool assembly is set in the inner cavity of valve body, valve body includes air inlet and exhaust outlet, air inlet and exhaust outlet are connected with the inner cavity of valve body, valve opening is set in the inner cavity of valve body, and air inlet and air outlet are connected by valve opening；Spool assembly includes insert body, gasket seal and platen, and gasket seal is between insert body and platen, and platen passes through gasket seal and is connected with insert body, and gasket seal is pressed on insert body by platen, and insert body can block valve opening.Gasket seal is pressed on insert body by minimum pressure valve of the invention by platen, enhances gasket seal firmness, and gas leak phenomenon caused by avoiding gasket seal from falling or misplace enhances the sealing effect of gasket seal.
Description
Technical field
The present invention relates to air compressor and its kit technical fields, minimum more particularly to a kind of air compressor
Pressure valve.
Background technique
With the development of industrial technology, industrial gas requires higher, robot to bleed pressure, is cut by laser, automatically
Production line, vapour protect Automobile Service, and food, drug, woodworking machinery, glass machinery, the fields such as package packing machine require to reach to bleed pressure
1.6MPa-2.4MPa.Minimum pressure valve is one of necessary parts of air compressor, the effect of minimum pressure valve includes: 1, when
When air compressor loads, the pressure difference generated inside machine causes all loads on separator core to separator core
Injury, and minimum pressure valve can play buffer function；2, it is not supplied externally immediately after air compressor starting, but first
Establish pressure required for lubrication system works, it is ensured that the lubrication of compressor, it is minimum when gas pressure reaches the pressure of setting
Pressure valve is opened, and is externally supplied, otherwise minimum pressure valve is in close state.Engine oil is the pressure by machine itself
Difference, not additional oil pump auxiliary, when machine is in light condition, it is still necessary to which certain pressure maintains oil circulation, so intake valve
Door is relatively closed, and minimum pressure valve prevents pressure leakage, guarantees the circulation of lubricating oil in this way.Minimum pressure valve mainly plays foundation
The effects of unit internal pressure, promotes lubrication oil circulation, meets the operating pressure of easing valve, minimum pressure valve also plays the work of check valve
With, prevent unit unload operation when air accumulator in compressed air flow backward to air compressor machine.
Minimum pressure valve is generally comprised including valve body, spool and gasket seal in the prior art, and valve body is equipped with valve opening, close
Gasket is by reaching sealing purpose by gasket seal between spool and valve opening on glue fixed spool.This minimum pressure
The advantages of valve is relatively easy, but for medium-pressure type air compressor, this minimum pressure valve sealing performance is in sealing loop material
All seem insufficient on material and firmness, gasket seal bears not living pressure and be easily deformed and fall off, gasket seal deformation or
After falling off, air compressor will appear gas leak phenomenon.
Therefore, how to change in the prior art, caused by air compressor easily falls off because of minimum pressure valve sealing gasket
Gas leak phenomenon is those skilled in the art's urgent problem to be solved.
Summary of the invention
The object of the present invention is to provide a kind of air compressor minimum pressure valve, to solve above-mentioned of the existing technology ask
Topic, enhances the intensity of gasket seal, and minimum pressure valve is avoided to generate gas leak phenomenon because gasket seal intensity is insufficient.
To achieve the above object, the present invention provides following schemes: the present invention provides a kind of air compressor minimum pressure
Valve, including valve body and Spool assembly, the Spool assembly are set in the inner cavity of the valve body, the valve body include air inlet and
Exhaust outlet, the air inlet and the exhaust outlet are connected with the inner cavity of the valve body, and valve is arranged in the inner cavity of the valve body
Hole, the air inlet and the gas outlet are connected by the valve opening；
The Spool assembly includes insert body, gasket seal and platen, and the gasket seal is located at the insert body
Between the platen, the platen is connected with the insert body, and the gasket seal is pressed on the valve by the platen
On core ontology, the insert body can block the valve opening.
Preferably, seal groove is set on the insert body, and the gasket seal is set in the seal groove, described close
The depth of sealing groove is small compared with the thickness of the gasket seal.
Preferably, the platen protrudes into the valve opening, and the inner wall of the gasket seal and the valve body abuts against.
Preferably, the platen is detachably connected with the insert body.
Preferably, the platen is connected by screw with the insert body, is arranged between the platen and the screw
Spring shim.
Preferably, the platen is round table-like, and the one end that is relatively large in diameter of the platen is abutted against with the gasket seal.
Preferably, the air compressor minimum pressure valve further includes piston, and the piston is set in body cavity, institute
It states piston to connect with the valve body slides, the piston is connected with the Spool assembly, and the piston is far from the Spool assembly
One end be arranged adjusting screw, the adjusting screw is connect with the valve body screw thread, between the piston and the adjusting screw
Piston spring is set, and the piston is arranged valve core spring, the valve core spring and the valve close to one end of the Spool assembly
Core assembly abuts against.
Preferably, the piston is further sleeved with sealing ring, and the sealing ring is abutted against with the valve interior wall；The valve body
Inside also set up the piston stopper that can limit the piston stroke；Pilot hole is arranged in the piston, and the insert body is far from institute
One end setting guide rod of gasket seal is stated, the guide rod is slideably positioned in the pilot hole.
The present invention achieves following technical effect compared with the existing technology: air compressor minimum pressure valve of the invention,
Including valve body and Spool assembly, Spool assembly is set in the inner cavity of valve body, and valve body includes air inlet and exhaust outlet, air inlet and
Exhaust outlet is connected with the inner cavity of valve body, and valve opening is arranged in the inner cavity of valve body, and air inlet and air outlet are connected by valve opening；
Spool assembly includes insert body, gasket seal and platen, and between insert body and platen, platen passes through close gasket seal
Gasket is connected with insert body, and gasket seal is pressed on insert body by platen, and insert body can block valve opening.This hair
Gasket seal is pressed on insert body by bright minimum pressure valve by platen, is enhanced gasket seal firmness, is avoided sealing
Gasket falls or misplaces caused gas leak phenomenon, enhances the sealing effect of gasket seal.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the cutting structural schematic diagram of air compressor minimum pressure valve in the prior art；
Fig. 2 is the cutting structural schematic diagram of air compressor minimum pressure valve of the invention；
Wherein, 1 is valve body, and 2 be spool, and 3 be gasket seal, and 4 be platen, and 5 be valve core spring, and 6 be piston, and 7 be sealing
Circle, 8 be piston spring, and 9 be adjusting screw, and 10 be piston stopper, and 11 be Spool assembly, and 12 be screw.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of air compressor minimum pressure valve, to solve above-mentioned of the existing technology ask
Topic, enhances the intensity of gasket seal, and minimum pressure valve is avoided to generate gas leak phenomenon because gasket seal intensity is insufficient.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Referring to FIG. 2, Fig. 2 is the cutting structural schematic diagram of air compressor minimum pressure valve of the invention.
The present invention provides a kind of air compressor minimum pressure valve, including valve body 1 and Spool assembly 11, Spool assembly 11 are set
It is placed in the inner cavity of valve body 1, valve body 1 includes air inlet and exhaust outlet, and air inlet and exhaust outlet are connected with the inner cavity of valve body 1
It is logical, valve opening is set in the inner cavity of valve body 1, and air inlet and air outlet are connected by valve opening；
Spool assembly 11 includes insert body 2, gasket seal 3 and platen 4, and gasket seal 3 is located at insert body 2 and platen
Between 4, platen 4 is connected with insert body 2, and gasket seal 3 is pressed on insert body 2 by platen 4, and insert body 2 can seal
Stifled valve opening.
Air compressor minimum pressure valve of the invention, is provided with Spool assembly 11, and Spool assembly 11 includes insert body
2, gasket seal 3 is pressed on insert body 2 by gasket seal 3 and platen 4 by platen 4, improves the secured journey of gasket seal 3
Degree, gas leak phenomenon caused by avoiding gasket seal 3 from falling or misplace enhance the sealing effect of gasket seal 3.In this specific implementation
In mode, gasket seal 3 is made of fluorubber, fluorubber high-temperature-resistant high-pressure-resistant better performances, is used in medium-pressure type compressor
In be not susceptible to plastic deformation.
Wherein, seal groove is set on insert body 2, and gasket seal 3 is set in seal groove, and it is close that seal groove plays restriction
The depth of the effect of 3 position of gasket, seal groove is small compared with the thickness of gasket seal 3, enable gasket seal 3 in valve body 1
Wall abuts against, it is ensured that Spool assembly 11 can block valve opening, improve 3 sealing performance of gasket seal.
In addition, gasket seal 3 and the inner wall of valve body 1 abut against, platen 4 is protruded into valve opening, and platen 4 is avoided to influence gasket
Piece 3 is in contact with 1 inner cavity of valve body, and platen 4 and gasket seal 3 and insert body 2, which cooperate, blocks valve opening.
Specifically, platen 4 is detachably connected with insert body 2, is conveniently replaceable gasket seal 3.
In this embodiment, platen 4 is connected by screw 12 with insert body 2, is connected firmly, easy disassembly,
Spring shim is set between platen 4 and screw 12, preventing screw 12 from loosening causes gasket seal 3 to fall.
More specifically, platen 4 be it is round table-like, the one end that is relatively large in diameter of platen 4 is abutted against with gasket seal 3, facilitates screw
12 installations improve gasket seal 3 and install fixed working efficiency.
Further, air compressor minimum pressure valve further includes piston 6, and piston 6 is set in 1 inner cavity of valve body, piston 6
It being slidably connected with valve body 1, piston 6 is connected with Spool assembly 11, and adjusting screw 9 is arranged far from one end of Spool assembly 11 in piston 6,
Adjusting screw 9 is threadedly coupled with valve body 1,6 spring 8 of piston is arranged between piston 6 and adjusting screw 9, piston 6 is close to Spool assembly
11 one end is arranged valve core spring 5, and valve core spring 5 is abutted against with Spool assembly 11.Piston 6 slidably reciprocates in 1 inner cavity of valve body
It is able to drive the movement of Spool assembly 11, realization, which blocks valve opening and separates with valve opening, enables air inlet be connected with gas outlet, in air
When compressor shutdown, Spool assembly 11 can close valve opening under the active force of valve core spring 5.The installation site of 6 spring 8 of piston
It can be adjusted by adjusting screw 9, the installation site by adjusting 6 spring 8 of piston can be realized adjustment minimum pressure valve
Operating pressure.
Further, piston 6 is further sleeved with sealing ring 7, and sealing ring 7 is abutted against with 1 inner wall of valve body, avoids at piston 6
It leaks；6 retaining ring 10 of piston that can limit 6 stroke of piston is also set up in valve body 1, limits 6 extreme position of piston；Piston 6
Pilot hole is set, and guide rod is arranged far from one end of gasket seal 3 in insert body 2, and guide rod is slideably positioned in pilot hole, leads
Guiding role is provided to the movement of Spool assembly 11 that is set as of bar and pilot hole.
Air compressor minimum pressure valve of the invention, the mode clamped using platen 4 solve prior art gasket
The problem of piece 3 is easy to fall off, meanwhile, 3 material of gasket seal can be made of flexible plastics such as the soft metals such as copper, aluminium or PEEK,
High temperature resistant, intensity are high, avoid the problem that 3 intensity of gasket seal is insufficient and leads to gas leakage.
Specific examples are applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to
According to thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (8)
1. a kind of air compressor minimum pressure valve, it is characterised in that: including valve body and Spool assembly, the Spool assembly setting
In the inner cavity of the valve body, the valve body includes air inlet and exhaust outlet, the air inlet and the exhaust outlet with it is described
The inner cavity of valve body is connected, and valve opening is arranged in the inner cavity of the valve body, and the air inlet and the gas outlet pass through the valve opening
It is connected；
The Spool assembly includes insert body, gasket seal and platen, and the gasket seal is located at the insert body and institute
It states between platen, the platen is connected with the insert body, and the gasket seal is pressed on the spool sheet by the platen
On body, the insert body can block the valve opening.
2. air compressor minimum pressure valve according to claim 1, it is characterised in that: be arranged on the insert body close
Sealing groove, the gasket seal are set in the seal groove, and the depth of the seal groove is small compared with the thickness of the gasket seal.
3. air compressor minimum pressure valve according to claim 2, it is characterised in that: the platen protrudes into the valve opening
In, the inner wall of the gasket seal and the valve body abuts against.
4. air compressor minimum pressure valve according to claim 1, it is characterised in that: the platen and the spool sheet
Body is detachably connected.
5. air compressor minimum pressure valve according to claim 4, it is characterised in that: the platen passes through screw and institute
It states insert body to be connected, spring shim is set between the platen and the screw.
6. air compressor minimum pressure valve according to claim 5, it is characterised in that: the platen is round table-like, institute
The one end that is relatively large in diameter for stating platen is abutted against with the gasket seal.
7. air compressor minimum pressure valve according to claim 1-6, it is characterised in that: it further include piston,
The piston is set in body cavity, and the piston is connect with the valve body slides, the piston and the Spool assembly phase
Even, adjusting screw is arranged far from one end of the Spool assembly in the piston, and the adjusting screw is connect with the valve body screw thread,
Piston spring is set between the piston and the adjusting screw, and the piston is arranged spool close to one end of the Spool assembly
Spring, the valve core spring are abutted against with the Spool assembly.
8. air compressor minimum pressure valve according to claim 7, it is characterised in that: the piston is further sleeved with sealing
Circle, the sealing ring are abutted against with the valve interior wall；The piston that can limit the piston stroke is also set up in the valve body
Retaining ring；Pilot hole is arranged in the piston, and guide rod, the guiding is arranged far from one end of the gasket seal in the insert body
Bar is slideably positioned in the pilot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910191847.5A CN109779885A (en) | 2019-03-14 | 2019-03-14 | A kind of air compressor minimum pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910191847.5A CN109779885A (en) | 2019-03-14 | 2019-03-14 | A kind of air compressor minimum pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109779885A true CN109779885A (en) | 2019-05-21 |
Family
ID=66487942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910191847.5A Pending CN109779885A (en) | 2019-03-14 | 2019-03-14 | A kind of air compressor minimum pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109779885A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895134A (en) * | 2019-12-20 | 2020-11-06 | 中国航发长春控制科技有限公司 | Valve assembly integrating parking, shutoff and minimum pressure valve functions |
| CN115013573A (en) * | 2022-08-10 | 2022-09-06 | 陕西中桥明智能科技有限公司 | Air compressor pressure valve capable of accurately adjusting pressure |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201910363U (en) * | 2010-11-26 | 2011-07-27 | 平高集团有限公司 | Self-sealing valve used for being connected with density relay |
| CN202302120U (en) * | 2011-09-20 | 2012-07-04 | 何东 | Small-aperture pressure valve |
| CN202301972U (en) * | 2011-09-20 | 2012-07-04 | 何东 | Heavy-caliber pressure valve |
| CN203730789U (en) * | 2014-03-02 | 2014-07-23 | 何东 | Minimum pressure valve |
| CN204459186U (en) * | 2015-01-28 | 2015-07-08 | 宁波金田消防器材有限公司 | Fire main controls selector valve |
| CN204663892U (en) * | 2015-05-25 | 2015-09-23 | 奉化意格特机械制造有限公司 | New screw air compressor pressure valve |
| CN104964050A (en) * | 2015-07-08 | 2015-10-07 | 航天长征化学工程股份有限公司 | Low-noise single-seat cage type regulating valve |
| CN205064958U (en) * | 2015-10-20 | 2016-03-02 | 德耐尔压缩机制造（上海）有限公司 | Pressure control valve |
| CN205370987U (en) * | 2016-01-14 | 2016-07-06 | 阿特拉斯·科普柯(无锡)压缩机有限公司 | Minimum pressure valve |
| CN205896196U (en) * | 2016-08-15 | 2017-01-18 | 浙江恒捷铜业有限公司 | Water tap |
| CN206054240U (en) * | 2016-06-23 | 2017-03-29 | 奉化意格特机械制造有限公司 | Minimum pressure valve |
| CN206572032U (en) * | 2017-02-16 | 2017-10-20 | 北京中车赛德铁道电气科技有限公司 | Locomotive air drier minimum pressure valve |
| CN109282067A (en) * | 2018-10-18 | 2019-01-29 | 奉化意格特机械制造有限公司 | A kind of vehicle-mounted intake valve |
| CN209604211U (en) * | 2019-03-14 | 2019-11-08 | 广州广涡精密科技有限公司 | A kind of air compressor minimum pressure valve |
-
2019
- 2019-03-14 CN CN201910191847.5A patent/CN109779885A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201910363U (en) * | 2010-11-26 | 2011-07-27 | 平高集团有限公司 | Self-sealing valve used for being connected with density relay |
| CN202302120U (en) * | 2011-09-20 | 2012-07-04 | 何东 | Small-aperture pressure valve |
| CN202301972U (en) * | 2011-09-20 | 2012-07-04 | 何东 | Heavy-caliber pressure valve |
| CN203730789U (en) * | 2014-03-02 | 2014-07-23 | 何东 | Minimum pressure valve |
| CN204459186U (en) * | 2015-01-28 | 2015-07-08 | 宁波金田消防器材有限公司 | Fire main controls selector valve |
| CN204663892U (en) * | 2015-05-25 | 2015-09-23 | 奉化意格特机械制造有限公司 | New screw air compressor pressure valve |
| CN104964050A (en) * | 2015-07-08 | 2015-10-07 | 航天长征化学工程股份有限公司 | Low-noise single-seat cage type regulating valve |
| CN205064958U (en) * | 2015-10-20 | 2016-03-02 | 德耐尔压缩机制造（上海）有限公司 | Pressure control valve |
| CN205370987U (en) * | 2016-01-14 | 2016-07-06 | 阿特拉斯·科普柯(无锡)压缩机有限公司 | Minimum pressure valve |
| CN206054240U (en) * | 2016-06-23 | 2017-03-29 | 奉化意格特机械制造有限公司 | Minimum pressure valve |
| CN205896196U (en) * | 2016-08-15 | 2017-01-18 | 浙江恒捷铜业有限公司 | Water tap |
| CN206572032U (en) * | 2017-02-16 | 2017-10-20 | 北京中车赛德铁道电气科技有限公司 | Locomotive air drier minimum pressure valve |
| CN109282067A (en) * | 2018-10-18 | 2019-01-29 | 奉化意格特机械制造有限公司 | A kind of vehicle-mounted intake valve |
| CN209604211U (en) * | 2019-03-14 | 2019-11-08 | 广州广涡精密科技有限公司 | A kind of air compressor minimum pressure valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895134A (en) * | 2019-12-20 | 2020-11-06 | 中国航发长春控制科技有限公司 | Valve assembly integrating parking, shutoff and minimum pressure valve functions |
| CN115013573A (en) * | 2022-08-10 | 2022-09-06 | 陕西中桥明智能科技有限公司 | Air compressor pressure valve capable of accurately adjusting pressure |
| CN115013573B (en) * | 2022-08-10 | 2022-12-06 | 上海宝邦医疗器械有限公司 | Air compressor pressure valve capable of accurately adjusting pressure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10544768B2 (en) | Pulsation damper and fuel pump device | |
| CN109779885A (en) | A kind of air compressor minimum pressure valve | |
| KR20110093638A (en) | Decompression switching valve | |
| ATE513996T1 (en) | MULTI-CYLINDER ROTARY COMPRESSOR AND COMPRESSION SYSTEM AND COOLING UNIT COMPRISING SUCH A COMPRESSOR | |
| CN105545858B (en) | A kind of special Pneumatic valve of pneumohydraulic pressure-cylinder and pneumohydraulic pressure-cylinder | |
| KR20180071261A (en) | Fluid control valve | |
| KR101744370B1 (en) | Clearance pocket for reciprocating compressor | |
| EP3392507A1 (en) | Sliding vane control structure for variable-capacity air cylinder, variable-capacity air cylinder and variable-capacity compressor | |
| CN209604211U (en) | A kind of air compressor minimum pressure valve | |
| JP2008275021A (en) | Piston ring and fluid absorbing and draining device using this piston ring | |
| KR20150051221A (en) | Compressed air driven reciprocating piston hydraulic pump | |
| GB1156798A (en) | Pump. | |
| CN216242384U (en) | Oil cut-off valve controlled by gas pressure | |
| CN102022309B (en) | Booster pump for engineering mechanical brake system | |
| CN205370987U (en) | Minimum pressure valve | |
| EP3477074A1 (en) | Exhaust bypass device and supercharger | |
| US9188110B2 (en) | Bellows backup chamber | |
| DE60304589D1 (en) | HYDRAULIC VALVE CONTROLLER FOR PISTON FLUID MOTOR | |
| CN203857105U (en) | Pressure regulating constant-current magnetic valve | |
| CN105351155A (en) | Air compression power machine | |
| RU2330193C1 (en) | Air cylinder | |
| CN105464812A (en) | Exhaust device used in starting aero-engine fuel control system | |
| JP5727647B1 (en) | Hydraulic actuator assembly for power plant | |
| US20220252059A1 (en) | Improved rubber sealed plunger assembly | |
| RU2560649C1 (en) | Piston compression pump |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220728 Address after: 510000 No. 11 Longjiang Road, Shilou Town, Panyu District, Guangzhou, Guangdong Province Applicant after: GUANGZHOU GUANGWO COMPRESSOR Co.,Ltd. Address before: 510000 No. 11, Lijiang Road, Shilou Town, Panyu District, Guangzhou, Guangdong Province (assembly workshop 2) Applicant before: GUANGZHOU GUANGWO PRECISION TECHNOLOGY Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190521 |