CN107725219A - A kind of automobile fuel gas electric-controlled injection method - Google Patents
A kind of automobile fuel gas electric-controlled injection method Download PDFInfo
- Publication number
- CN107725219A CN107725219A CN201711020748.8A CN201711020748A CN107725219A CN 107725219 A CN107725219 A CN 107725219A CN 201711020748 A CN201711020748 A CN 201711020748A CN 107725219 A CN107725219 A CN 107725219A
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- China
- Prior art keywords
- diaphragm
- main valve
- piece
- secondary flap
- outlet 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0242—Shut-off valves; Check valves; Safety valves; Pressure relief valves
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The present invention discloses a kind of automobile fuel gas electric-controlled injection method, the adjusting screw turned in automobile fuel gas electric-controlling injection system structure opens secondary flap, combustion gas enters the lower section of big diaphragm, big diaphragm movement opens main valve clack, gas is simultaneously into the lower section of Small diaphragm-piece, adjust outlet pressure, when outlet pressure increase, power below Small diaphragm-piece is more than the elastic force of regulation spring, Small diaphragm-piece is moved up, and secondary flap moves to closing direction, and the gas for making to enter below big diaphragm is reduced, main valve clack aperture reduces, and outlet pressure declines and reaches balance.The inlet pressure of fluid is lowered and is automatically held in the regulating valve of the outlet pressure of a certain needs by the technical program by using the principle of throttling, and pressure-reducing valve is mainly used in steam supply, supply, water supply and oil supply system.
Description
Technical field
The present invention relates to gas technology field, and in particular to a kind of automobile fuel gas electric-controlled injection method.
Background technology
With the rapid growth of car ownership, environmental pollution and petroleum resources shortage problem are on the rise.Therefore, the world
Actively develop the R＆D work of new-energy automobile in various countries.Wherein, gas-fueled vehicles with its discharge it is low, suppress greenhouse effects and to break away from
Three big characteristics are relied on to oil, is just worldwide popularized and promoted.In China, many city bus and taxi have
Compressed natural gas (CNG) or liquefied petroleum gas (LPG) have been used or used instead to great amount of fuel oil car instead.With China's combustion gas vapour
The rapid of car recoverable amount increases, and it is also imperative to develop matched combustion heater.
In the electronic controlled gas injection system of gaseous propellant engine, one of device of most critical is gas ejector, its property
It good and bad can directly affect the jet quality of fuel.
When the pressure in electronic controlled gas injection system is larger, existing adjusting means can not effectively be adjusted to pressure,
Fuel gas transmission is caused to have some setbacks.
Based on this, a kind of automobile fuel gas electric-controlled injection method has been researched and developed.
The content of the invention
The present invention provides a kind of automobile fuel gas electric-controlled injection method, and the pressure of outlet is adjusted, avoids hypertonia,
Influence the conveying of automobile fuel gas.
The present invention is achieved through the following technical solutions：
A kind of automobile fuel gas electric-controlled injection method, the adjusting screw turned in automobile fuel gas electric-controlling injection system structure are opened
Secondary flap, combustion gas enter the lower section of big diaphragm, and big diaphragm movement opens main valve clack, and gas enters the lower section of Small diaphragm-piece simultaneously,
Outlet pressure is adjusted, the power below outlet pressure increase, Small diaphragm-piece is more than the elastic force of regulation spring, and Small diaphragm-piece moves up,
Secondary flap is moved to closing direction, and the gas for making to enter below big diaphragm is reduced, and main valve clack aperture reduces, and outlet pressure declines simultaneously
Reach balance.
Further, in order to preferably realize the present invention, when outlet pressure declines, the aperture of main valve clack reduces, outlet
Pressure decreases.
Further, in order to preferably realize the present invention, the power below outlet pressure increase, Small diaphragm-piece is more than regulation bullet
The elastic force of spring, Small diaphragm-piece are moved up, and secondary flap moves to closing direction, and the gas for making to enter below big diaphragm is reduced, main valve
Valve aperture reduces, and outlet pressure declines and reaches balance.
Further, in order to preferably realize the present invention, institute's automobile fuel gas electric-controlling injection system include adjusting screw,
Spring, Small diaphragm-piece, secondary flap, main valve clack, big diaphragm are adjusted, adjusting screw is connected with regulation spring through the top cover of valve seat, adjusted
The lower end of section spring is connected by Small diaphragm-piece with secondary flap, and secondary flap is connected by spring with main valve clack, and the lower end of main valve clack connects
Connecting tube is connected to, connecting tube is connected with big diaphragm, and the regulation spring, Small diaphragm-piece, secondary flap, main valve clack, big diaphragm are respectively positioned on
In valve seat, the chamber where the secondary flap is located at the chamber of valve seat lower end from upper end and big diaphragm.
Further, in order to preferably realize the present invention, chamber where the secondary flap is from upper end and big diaphragm institute position
Chamber in valve seat lower end.
Further, in order to preferably realize the present invention, chamber that the main valve clack, connecting tube, big diaphragm are located at
Chamber isolation where secondary flap, and connected by communicating pipe.
The present invention compared with prior art, has the following advantages and advantages：
The inlet pressure of fluid is lowered and is automatically held in a certain needs by the technical program by using the principle of throttling
Outlet pressure regulating valve, pressure-reducing valve is mainly used in steam supply, supply, water supply and oil supply system.
Brief description of the drawings
Fig. 1 is the structural representation of combustion gas electric-controlling injection system in the present invention；
Wherein：1- adjusting screws 2-regulation 3-Small diaphragm-piece of spring, 4-secondary flap, 5-main valve clack, 6-big diaphragm,
7-valve seat, 8-laminate pipe, 9-communicating pipe, 10-valve seat.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment, the present invention is made
Further to describe in detail, exemplary embodiment of the invention and its explanation are only used for explaining the present invention, are not intended as to this
The restriction of invention.
Embodiment 1：
As shown in figure 1, a kind of automobile fuel gas electric-controlled injection method, turns the tune in automobile fuel gas electric-controlling injection system structure
Save screw 1 and open secondary flap 4, combustion gas enters the lower section of big diaphragm 6, and the big movement of diaphragm 6 opens main valve clack 5, and gas enters simultaneously
Enter the lower section of Small diaphragm-piece 3, adjust outlet pressure, when outlet pressure increase, the power of the lower section of Small diaphragm-piece 3 is more than the bullet of regulation spring 2
Power, Small diaphragm-piece 3 are moved up, and secondary flap 4 moves to closing direction, and the gas for making to enter the big lower section of diaphragm 6 is reduced, main valve clack 5
Aperture reduces, and outlet pressure declines and reaches balance.When outlet pressure declines, the aperture of main valve clack 5 reduces, outlet pressure with
Reduction.
Wherein, the automobile fuel gas electric-controlling injection system include adjusting screw 1, regulation spring 2, Small diaphragm-piece 3, secondary flap 4,
Main valve clack 5, big diaphragm 6, adjusting screw 1 are connected through the top cover of valve seat 10 with regulation spring 2, and the lower end of regulation spring 2 passes through
Small diaphragm-piece 3 is connected with secondary flap 4, and secondary flap 4 is connected by spring with main valve clack 5, and the lower end of main valve clack 5 is connected with connecting tube 8,
Connecting tube 8 is connected with big diaphragm 6, and the regulation spring 2, Small diaphragm-piece 3, secondary flap 4, main valve clack 5, big diaphragm 6 are respectively positioned on valve seat
In 10, the chamber where the secondary flap 4 is located at the chamber of the lower end of valve seat 10 from upper end and big diaphragm 6.
Wherein, the chamber that the main valve clack 5, connecting tube 8, big diaphragm 6 are located at completely cuts off with the chamber where secondary flap 4,
And connected by communicating pipe 4.
During concrete operations：Turn adjusting screw and open secondary flap, gas enters the big Xia Fang ﹐ of diaphragm 6 because big diaphragm 6 is (or living
Plug) (or downwards) is mobile upwards after area ﹐ stress bigger than main valve clack 5 opens main valve clack 5 to open ﹐ fluids by exporting also while entering
Then outlet pressure is gradually increased to required numerical value to the Xia Fang ﹐ of Small diaphragm-piece 3.At this moment gas is acted on Small diaphragm-piece 3 total power with
The elastic force Xiang Ping Heng ﹐ flap positions for adjusting spring 2 keep constant.Such as outlet pressure Zeng Gao ﹐ because the power of the lower section of Small diaphragm-piece 3 is more than tune
The Dan Li ﹐ Small diaphragm-pieces 3 of section spring 2 are to make to enter the big lower section of diaphragm 6 to closing direction Yun Dong ﹐ therewith Xiang Shang Yi Dong ﹐ secondary flaps 4
Fluid subtracts few ﹐ pressure and ﹐ is also dropped under then the aperture of main valve clack 5 subtracts small ﹐ outlet pressures and also reaches new balance therewith declining.
The aperture Zeng great ﹐ outlet pressures of anti-﹐ outlet pressures Xia Jiang Shi ﹐ main valve clacks 5 rise again.Zhe Yang ﹐ outlet pressures are automatically kept
Within prescribed limit.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (4)
- A kind of 1. automobile fuel gas electric-controlled injection method, it is characterised in that：Turn the tune in automobile fuel gas electric-controlling injection system structure Saving screw (1) and open secondary flap (4), combustion gas enters the lower section of big diaphragm (6), and big diaphragm (6) is mobile to open main valve clack (5), Gas into the lower section of Small diaphragm-piece (3), adjusts outlet pressure simultaneously, and the power below outlet pressure increase, Small diaphragm-piece (3) is more than The elastic force of spring (2) is adjusted, Small diaphragm-piece (3) moves up, and secondary flap (4) moves to closing direction, makes to enter under big diaphragm (6) The gas of side is reduced, and main valve clack (5) aperture reduces, and outlet pressure declines and reaches balance.
- A kind of 2. automobile fuel gas electric-controlled injection method according to claim 1, it is characterised in that：It is described to work as under outlet pressure During drop, the aperture of main valve clack (5) reduces, and outlet pressure decreases.
- A kind of 3. operating method of automobile fuel gas electric control operation valve according to claim 1, it is characterised in that：The automobile Combustion gas electric-controlling injection system includes adjusting screw (1), regulation spring (2), Small diaphragm-piece (3), secondary flap (4), main valve clack (5), big Diaphragm (6), adjusting screw (1) are connected through the top cover of valve seat (10) with regulation spring (2), and the lower end of regulation spring (2) passes through Small diaphragm-piece (3) is connected with secondary flap (4), and secondary flap (4) is connected by spring with main valve clack (5), the lower end connection of main valve clack (5) There is connecting tube (8), connecting tube (8) is connected with big diaphragm (6), the regulation spring (2), Small diaphragm-piece (3), secondary flap (4), main valve Valve (5), big diaphragm (6) are respectively positioned in valve seat (10), and the chamber where the secondary flap (4) is from upper end and big diaphragm (6) institute position Chamber in valve seat (10) lower end.
- A kind of 4. automobile fuel gas electric-controlled injection method according to claim 3, it is characterised in that：The main valve clack (5), connect The chamber that adapter (8), big diaphragm (6) are located at completely cuts off with the chamber where secondary flap (4), and is connected by communicating pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711020748.8A CN107725219A (en) | 2017-10-27 | 2017-10-27 | A kind of automobile fuel gas electric-controlled injection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711020748.8A CN107725219A (en) | 2017-10-27 | 2017-10-27 | A kind of automobile fuel gas electric-controlled injection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107725219A true CN107725219A (en) | 2018-02-23 |
Family
ID=61202653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711020748.8A Pending CN107725219A (en) | 2017-10-27 | 2017-10-27 | A kind of automobile fuel gas electric-controlled injection method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107725219A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795716A (en) * | 2017-10-27 | 2018-03-13 | 四川森洁燃气设备有限公司 | A kind of operating method of automobile fuel gas electric control operation control valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4313460A (en) * | 1979-10-04 | 1982-02-02 | Jh Industries, Inc. | Pilot valve |
| EP0689652A1 (en) * | 1993-03-19 | 1996-01-03 | Tour & Andersson Hydronics Aktiebolag | Self-actuating control valve |
| CN201982783U (en) * | 2011-01-14 | 2011-09-21 | 浙江金锋自动化仪表有限公司 | Dual-diaphragm actuating mechanism of self-operated valve rear pressure regulator |
| CN104455665A (en) * | 2014-11-30 | 2015-03-25 | 重庆万斯金属特种成形有限公司 | Pneumatic control device for liquid level |
| CN105003706A (en) * | 2015-08-17 | 2015-10-28 | 成都国光电子仪表有限责任公司 | Natural gas pressure reducing valve with pressure reducing ratio being convenient to adjust |
| CN105179768A (en) * | 2015-08-17 | 2015-12-23 | 成都国光电子仪表有限责任公司 | Natural gas pressure reducing valve beneficial to improving gas exhaust pressure control precision |
| CN107795716A (en) * | 2017-10-27 | 2018-03-13 | 四川森洁燃气设备有限公司 | A kind of operating method of automobile fuel gas electric control operation control valve |
-
2017
- 2017-10-27 CN CN201711020748.8A patent/CN107725219A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4313460A (en) * | 1979-10-04 | 1982-02-02 | Jh Industries, Inc. | Pilot valve |
| EP0689652A1 (en) * | 1993-03-19 | 1996-01-03 | Tour & Andersson Hydronics Aktiebolag | Self-actuating control valve |
| CN201982783U (en) * | 2011-01-14 | 2011-09-21 | 浙江金锋自动化仪表有限公司 | Dual-diaphragm actuating mechanism of self-operated valve rear pressure regulator |
| CN104455665A (en) * | 2014-11-30 | 2015-03-25 | 重庆万斯金属特种成形有限公司 | Pneumatic control device for liquid level |
| CN105003706A (en) * | 2015-08-17 | 2015-10-28 | 成都国光电子仪表有限责任公司 | Natural gas pressure reducing valve with pressure reducing ratio being convenient to adjust |
| CN105179768A (en) * | 2015-08-17 | 2015-12-23 | 成都国光电子仪表有限责任公司 | Natural gas pressure reducing valve beneficial to improving gas exhaust pressure control precision |
| CN107795716A (en) * | 2017-10-27 | 2018-03-13 | 四川森洁燃气设备有限公司 | A kind of operating method of automobile fuel gas electric control operation control valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795716A (en) * | 2017-10-27 | 2018-03-13 | 四川森洁燃气设备有限公司 | A kind of operating method of automobile fuel gas electric control operation control valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180223 |
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| RJ01 | Rejection of invention patent application after publication |