CN202228214U - Pressure regulating and pressure reducing device used for gas vehicle electric control jetting system - Google Patents
Pressure regulating and pressure reducing device used for gas vehicle electric control jetting system Download PDFInfo
- Publication number
- CN202228214U CN202228214U CN2011202748220U CN201120274822U CN202228214U CN 202228214 U CN202228214 U CN 202228214U CN 2011202748220 U CN2011202748220 U CN 2011202748220U CN 201120274822 U CN201120274822 U CN 201120274822U CN 202228214 U CN202228214 U CN 202228214U
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- Prior art keywords
- valve
- pressure
- pressure regulation
- diaphragm
- gas combustion
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The utility model discloses a pressure regulating and pressure reducing device used for a gas vehicle electric control jetting system, which comprises a pressure regulating end cover, a diaphragm, a diaphragm shaft sleeve, a valve body, a gas outlet joint, a gas inlet end cover, a valve port seat and a valve core bar as well as a pressure relief valve, wherein the pressure relief valve is connected with the valve body and communicated with the chamber of the valve body, a balancing damping hole communicated with the chamber of the diaphragm is arranged above one side of the chamber of the valve body, close to the gas outlet joint, the surface of the inner wall of the valve port of the valve port seat is an arc conical surface, and a valve core return spring is arranged below the valve core bar. The pressure regulating and pressure reducing device has the advantages of being simple in structure, stable in output pressure, good in tightness and the like.
Description
Technical field
The utility model relates to a kind of pressure regulation decompressor, and particularly a kind of gas combustion automobile electric-controlling injection system is used the pressure regulation decompressor.
Background technique
The gas combustion automobile electric-controlling injection system is a gas combustion automobile electric-controlling injection system product key components and parts with the pressure regulation decompressor, and present domestic middle and high-end market mainly relies on imported product.Common gas combustion automobile electric-controlling injection system uses the pressure regulation decompressor to be the twin-stage diaphragm type structure, and the shortcoming of this technology is: 1, volume is big; 2, the pressure transient of giving vent to anger; 3, be prone to interior leakage problem; 4, it is little to go out throughput; 5, reliability and life-span are low.
The model utility content
The purpose of the utility model is to provide a kind of delivery pressure to stablize, go out that throughput is big, safe and reliable, the gas combustion automobile electric-controlling injection system of good airproof performance is used the pressure regulation decompressor in order to address the above problem.
For solving the problems of the technologies described above; The utility model is realized through following technological scheme: a kind of gas combustion automobile electric-controlling injection system is used the pressure regulation decompressor; Comprise pressure regulation end cap, diaphragm, diaphragm axle sleeve, valve body, air outlet adapter, air inlet end cap, valve port seat and valve core rod; Said pressure regulation decompressor also comprises a pressure-relief valve, and said pressure-relief valve is connected with valve body and communicates with valve chamber, and said valve chamber is provided with the balance damping hole that communicates with the diaphragm chamber near the top of air outlet adapter one side; The valve port inner wall surface of said valve port seat is the circular arc conical surface, and the below of said valve core rod is provided with the spool return spring.
As preferably, the upper end of said spool return spring and return spring seated connection touch, and the return spring seat is connected with the lower end of valve core rod, and the lower end position of spool return spring is equipped with the spring compression bolt.
As preferably, said inlet end is covered with spool back-pressure balance hole.
As preferably, said air inlet end cap is the Cuprum alloy end cap.
As preferably, the valve port seat in the said mangetic core assembly is a stainless steel valve port seat.
As preferably, the top of said valve core rod is equipped with the seal spool plug, the circular arc conical surface that the sealing surface that said seal spool is held beyond the Great Wall matches for the circular arc conical surface with said valve port, and said seal spool plug is the polymer composite sealing plug.
Further, said valve body is the aluminum alloy valve body, and said pressure regulation end cap is an Aluminum Alloy Cover.
A nearlyer step ground, said diaphragm axle sleeve is a Reinforced Nylon diaphragm axle sleeve.
The beneficial effect of the utility model is:
Through return spring and pressure-relief valve in the pressure regulation reduction valve and optimize the sealing surface of pressure-relief valve valve port and valve core rod; The utlity model has advantages such as delivery pressure is stable, safe and reliable, simple in structure, good airproof performance, be applicable to all types of gas engines and vehicle.
Description of drawings
Fig. 1 cuts open plan view for the office of the utility model;
Fig. 2 is the plan view of the utility model;
Fig. 3 is the A-A sectional view among Fig. 2;
Fig. 4 is the plan view of the air inlet end cap of the utility model;
Fig. 5 is the axial sectional view of the valve body of the utility model;
Among the figure: 1-pressure regulation end cap, 2-pressure adjusting spring seat, 3-pressure adjusting spring, 4-diaphragm spring seat, 5-diaphragm, 6-diaphragm press table; 7-diaphragm coupling shaft, 8-diaphragm axle sleeve, 9-valve body, 10-pressure-relief valve, 11-air outlet adapter, 12-air inlet end cap; 13-valve port seat, 14-valve core rod, 15-seal spool plug, 16-spool guide holder, 17-spool return spring seat; 18-spool return spring, 19-guide holder pressing plate, 20-spring compression bolt, 21-circulating water joint, 22-vacuum connect; 23-back-pressure balance hole, 24-valve chamber, 25-balance damping hole, 26-diaphragm chamber, 27-valve port.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify:
To shown in Figure 3, a kind of gas combustion automobile electric-controlling injection system is used the pressure regulation decompressor, comprises pressure regulation end cap 1, diaphragm 5, diaphragm axle sleeve 8, valve body 9, air outlet adapter 11, air inlet end cap 12, valve port seat 13 and valve core rod 14 like Fig. 1.Pressure regulation end cap 1 and air inlet end cap 12 are through being threaded on the valve body 9, and circulating water joint 21 is fixed on the air inlet end cap 12, and vacuum connect 22 is fixed on the pressure regulation end cap 1.
Valve core rod 14, guide holder 16, valve port seat 13, guide holder pressing plate 19 and seal spool plug 15 are formed mangetic core assembly together.With the valve core rod that the installs seal spool plug 15 14 spool guide holder 16 of packing into, reinstall valve port seat 13 and compress as mangetic core assembly with spool guide holder pressing plate 19.Valve port seat 13 is provided with valve port 27, and valve port 27 adopts stainless steel materials, and valve port 27 be a conical surface guiding circular arc valve port structure, makes that valve port is closed more reliably, compliance is good and the life-span is longer.Seal spool plug 15 adopts polymer composite, the circular arc conical surface that seal spool plug sealing surface matches for the circular arc conical surface with said valve port, and sealing effect is more reliable, and the life-span is longer.Said mangetic core assembly is fixed in the air inlet end cap 12; Pack into successively again valve core spring seat 17 and spool return spring 18; The upper end of spool return spring 18 contacts with return spring seat 17; Return spring seat 17 is connected with the lower end of valve core rod 14, and the lower end position of spool return spring 18 is equipped with spring compression bolt 20.Said spool return spring has the spool of making initiatively return function and safety protection function, when extreme fault such as the accidental damage of decompressor valve body, the fracture of decompressor valve core rod and decompressor rupture of diaphragm takes place, plays self acting stop valve mouth protective function.
Said pressure regulation decompressor also comprises a pressure-relief valve 10; Pressure-relief valve 10 is threaded with valve body 9; And communicate with valve chamber 24 away from air outlet adapter 11 1 sides; Pressure-relief valve 10 has pressure relief and safety protection function, and is higher when unusual as decompressor body cavity chamber pressure takes place, and plays the automatic pressure-relieving protective function.
The air inlet end cover structure of the utility model is as shown in Figure 4, and air inlet end cap 12 is provided with spool back-pressure balance hole 23, guarantees that the high frequency of spool opens and closes motion.The air inlet screw that air inlet end cap 12 is provided with can connect air input joint or high-pressure solenoid valve; Can connect various interface; Comprise that CNG with high pressure Stainless Steel Tube, CNG high-pressure solenoid valve, LNG copper pipe etc., effectively imports latus rectum and can reach φ 6, air inlet end cap 12 adopts the Cuprum alloy section bar.
The axial sectional view of the valve body of the utility model is as shown in Figure 5, and valve body 9 is provided with diaphragm chamber chamber pressure balance damping hole 25 in the side near air outlet adapter 11, guarantees that spool opens and closes steadily and the pressure stability of giving vent to anger.
Claims (8)
1. a gas combustion automobile electric-controlling injection system is used the pressure regulation decompressor; Comprise pressure regulation end cap (1), diaphragm (5), diaphragm axle sleeve (8), valve body (9), air outlet adapter (11), air inlet end cap (12), valve port seat (13) and valve core rod (14); It is characterized in that: said pressure regulation decompressor also comprises a pressure-relief valve (10); Said pressure-relief valve (10) is connected with valve body (9) and communicates with valve chamber (24); Said valve chamber (24) is provided with the balance damping hole (25) that communicates with diaphragm chamber (26) near the top of air outlet adapter (11) one sides, and valve port (27) inner wall surface of said valve port seat (13) is the circular arc conical surface, and the below of said valve core rod (14) is provided with spool return spring (18).
2. gas combustion automobile electric-controlling injection system according to claim 1 is used the pressure regulation decompressor; It is characterized in that: the upper end of said spool return spring (18) contacts with return spring seat (17); Return spring seat (17) is connected with the lower end of valve core rod (14), and the lower end position of spool return spring (18) is equipped with spring compression bolt (20).
3. gas combustion automobile electric-controlling injection system according to claim 1 is used the pressure regulation decompressor, it is characterized in that: said air inlet end cap (12) is provided with back-pressure balance hole (23).
4. use the pressure regulation decompressor according to claim 1 or 3 described gas combustion automobile electric-controlling injection systems, it is characterized in that: said air inlet end cap (12) is the Cuprum alloy end cap.
5. gas combustion automobile electric-controlling injection system according to claim 1 is used the pressure regulation decompressor, it is characterized in that: said valve port seat (13) is a stainless steel valve port seat.
6. gas combustion automobile electric-controlling injection system according to claim 1 is used the pressure regulation decompressor; It is characterized in that: the top of said valve core rod (14) is equipped with seal spool plug (15); The circular arc conical surface that the sealing surface of said seal spool plug (15) upper end matches for the circular arc conical surface with said valve port (27), said seal spool plug (15) is the polymer composite sealing plug.
7. gas combustion automobile electric-controlling injection system according to claim 1 is used the pressure regulation decompressor, it is characterized in that: said valve body (9) is the aluminum alloy valve body, and said pressure regulation end cap (1) is an Aluminum Alloy Cover.
8. gas combustion automobile electric-controlling injection system according to claim 1 is used the pressure regulation decompressor, it is characterized in that: said diaphragm axle sleeve (8) is a Reinforced Nylon diaphragm axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202748220U CN202228214U (en) | 2011-07-29 | 2011-07-29 | Pressure regulating and pressure reducing device used for gas vehicle electric control jetting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202748220U CN202228214U (en) | 2011-07-29 | 2011-07-29 | Pressure regulating and pressure reducing device used for gas vehicle electric control jetting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228214U true CN202228214U (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202748220U Expired - Fee Related CN202228214U (en) | 2011-07-29 | 2011-07-29 | Pressure regulating and pressure reducing device used for gas vehicle electric control jetting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228214U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506023A (en) * | 2018-12-19 | 2019-03-22 | 中国航天空气动力技术研究院 | A kind of quasi- regulator of portable small-flow precise |
| CN111828701A (en) * | 2020-08-04 | 2020-10-27 | 哈尔滨工业大学 | Low-pressure micro-flow pressure reducing valve for space water sublimator |
-
2011
- 2011-07-29 CN CN2011202748220U patent/CN202228214U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506023A (en) * | 2018-12-19 | 2019-03-22 | 中国航天空气动力技术研究院 | A kind of quasi- regulator of portable small-flow precise |
| CN111828701A (en) * | 2020-08-04 | 2020-10-27 | 哈尔滨工业大学 | Low-pressure micro-flow pressure reducing valve for space water sublimator |
| CN111828701B (en) * | 2020-08-04 | 2021-05-18 | 哈尔滨工业大学 | Low-pressure micro-flow pressure reducing valve for space water sublimator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SICHUAN DIHUA POWER TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHI MINLEI Effective date: 20131107 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131107 Address after: 610000, No. 666, South Road, Chengdu economic and Technological Development Zone, Longquanyi District, Sichuan, Chengdu Patentee after: Sichuan Dihua Power Technology Co., Ltd. Address before: 610000 Sichuan Province, Chengdu City Road No. 2 Chenghua District 11 building 4 unit 11 Patentee before: Shi Minlei |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610000, No. 666, South Road, Chengdu economic and Technological Development Zone, Longquanyi District, Sichuan, Chengdu Patentee after: SICHUAN DIHUA AUTO TECH CO., LTD. Address before: 610000, No. 666, South Road, Chengdu economic and Technological Development Zone, Longquanyi District, Sichuan, Chengdu Patentee before: Sichuan Dihua Power Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20180729 |