CN110439712B - High-pressure gas injection control driving valve, gas injection system and engine - Google Patents
High-pressure gas injection control driving valve, gas injection system and engine Download PDFInfo
- Publication number
- CN110439712B CN110439712B CN201910858183.3A CN201910858183A CN110439712B CN 110439712 B CN110439712 B CN 110439712B CN 201910858183 A CN201910858183 A CN 201910858183A CN 110439712 B CN110439712 B CN 110439712B
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- 238000002347 injection Methods 0.000 title claims abstract description 104
- 239000007924 injection Substances 0.000 title claims abstract description 104
- 239000007789 gas Substances 0.000 claims abstract description 178
- 239000003921 oil Substances 0.000 claims abstract description 41
- 239000002737 fuel gas Substances 0.000 claims abstract description 37
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 32
- 230000002000 scavenging effect Effects 0.000 claims abstract description 32
- 238000012544 monitoring process Methods 0.000 claims description 18
- 239000000446 fuel Substances 0.000 claims description 15
- 230000000087 stabilizing effect Effects 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- 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
- F02M21/0233—Details of actuators therefor
-
- 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
- F02M21/0245—High pressure fuel supply systems; Rails; Pumps; Arrangement of valves
-
- 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
- F02M21/0248—Injectors
- F02M21/0251—Details of actuators therefor
-
- 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
- F02M21/0293—Safety devices; Fail-safe measures
-
- 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
Landscapes
- 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)
- Analytical Chemistry (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention belongs to the technical field of marine engines, and discloses a high-pressure gas injection control driving valve, a gas injection system and an engine. A gas storage cavity is arranged in a gas control block of the high-pressure gas injection control driving valve and is communicated with external high-pressure gas; the air inlet valve is arranged on the gas control block, one end of the air inlet valve is communicated with the gas storage cavity, and the other end of the air inlet valve is communicated with the air injection valve in the gas injection system; the driving control block is arranged on the air inlet valve and is communicated with external high-pressure hydraulic oil; the accumulator is communicated with the fuel gas control block, is used for storing high-pressure hydraulic oil and is communicated with the driving control block through a fourth oil pipe; the scavenging valve is arranged on the gas control block and is communicated with the pressure accumulator through an oil pipe. The complete separation of the air path and the oil path is realized, and the safety performance is improved; by arranging the gas control block and the gas inlet valve, the functions of storing, stabilizing pressure and controlling injection of gas are realized, and the constant pressure and the fixed quantity of supplied gas can be realized.
Description
Technical Field
The invention relates to the technical field of marine engines, in particular to a high-pressure gas injection control driving valve, a gas injection system and an engine.
Background
With the continuous development of global economy, the demand of energy is still increasing, and the current worldwide petroleum shortage and the increasing emergence of global environmental pollution problems lead each country to turn the eyes to gas engines and dual-fuel engines using gas as fuel. The fuel gas injection control driving valve is taken as a direct control element of the fuel gas injection, and is one of the most core parts of the gas engine and the dual-fuel engine undoubtedly. The engine injection valve realizes the function of fuel injection, and the high-pressure fuel gas and the high-pressure hydraulic oil are required to be provided by means of the fuel gas injection control driving valve.
The gas injection control driving valve needs to simultaneously provide high-pressure gas and high-pressure hydraulic oil, so that the gas and oil are prevented from being mixed during operation to avoid danger. The high-pressure fuel gas has the characteristic of inflammability and explosiveness, and when the fuel gas protection device is absent, excessive fuel gas can be sprayed into the cylinder to cause the safety problems of cylinder explosion and the like. Therefore, the gas injection amount needs to be precisely controlled in the gas injection system.
Disclosure of Invention
An object of the present invention is to provide a high-pressure fuel injection control drive valve capable of stabilizing a gas pressure, controlling a gas supply, stabilizing a high-pressure hydraulic oil, and controlling a high-pressure hydraulic oil supply, and achieving a fuel-air separation.
To achieve the purpose, the invention adopts the following technical scheme:
a high pressure fuel injection control driving valve comprising:
The gas storage cavity is arranged in the gas control block and is communicated with external high-pressure gas;
the gas inlet valve is arranged on the gas control block, one end of the gas inlet valve is communicated with the gas storage cavity, and the other end of the gas inlet valve is communicated with a gas spraying valve in the gas spraying system;
The driving control block is arranged on the air inlet valve and is communicated with external high-pressure hydraulic oil;
The pressure accumulator is communicated with the fuel gas control block and is used for storing high-pressure hydraulic oil, and the pressure accumulator is communicated with the driving control block through an oil pipe;
and the scavenging valve is arranged on the gas control block and is communicated with the pressure accumulator through an oil pipe.
As a preferable technical scheme, the device further comprises an injection valve driving electromagnetic valve and a gas injection control driving electromagnetic valve which are arranged on the driving control block, wherein the gas injection control driving electromagnetic valve is communicated with the driving control block through an internal pipeline, the high-pressure hydraulic oil can circulate in the internal pipeline, the gas injection control driving electromagnetic valve can be communicated with the air inlet valve and the injection valve driving electromagnetic valve, and the high-pressure hydraulic oil can drive the air inlet valve to open after entering the air inlet valve so as to enable the high-pressure gas in the gas storage cavity to flow to the air injection valve; the injection valve driving solenoid valve is capable of driving the high-pressure hydraulic oil to flow to an injection valve in a gas injection system.
As the preferable technical scheme, an oil outlet is arranged on the side wall of the fuel gas control block, one end of the oil outlet is communicated with the driving control block, and the other end of the oil outlet is communicated with the injection valve.
As the preferable technical scheme, the gas concentration monitoring system also comprises a gas concentration monitoring component for monitoring the concentration of leaked gas in real time.
As a preferable technical scheme, the gas concentration monitoring assembly comprises a plurality of gas concentration sensors arranged at each leakage point.
As the preferable technical scheme, the scavenging valve is provided with two scavenging valves which are respectively arranged at the upper part and the lower part of the gas control block, and the two scavenging valves are respectively communicated with the pressure accumulator through a first oil pipe and a second oil pipe.
As an optimal technical scheme, a first pipe joint and a second pipe joint are arranged on the gas control block, a third pipe joint is arranged on the scavenging valve at the upper part of the gas control block, a fourth pipe joint is arranged on the scavenging valve at the lower part of the gas control block, the first pipe joint is connected with the third pipe joint through a first oil pipe, and the second pipe joint is connected with the fourth pipe joint through a second oil pipe.
As the preferable technical scheme, the gas storage device further comprises a gas inlet pipe connecting flange arranged at the bottom of the gas control block, and the high-pressure gas is communicated with the gas storage cavity through the gas inlet pipe connecting flange.
It is still another object of the present invention to provide a gas injection system that can achieve accurate control of the gas injection amount with high safety.
To achieve the purpose, the invention adopts the following technical scheme:
A gas injection system comprising a high pressure gas injection control actuated valve as described above.
It is still another object of the present invention to provide an engine that is safe in use.
To achieve the purpose, the invention adopts the following technical scheme:
An engine comprising a gas injection system as described above.
Compared with the prior art, the invention has the advantages that:
The invention provides a high-pressure gas injection control driving valve, wherein a gas storage cavity is arranged in a gas control block and is communicated with external high-pressure gas; the air inlet valve is arranged on the gas control block, one end of the air inlet valve is communicated with the gas storage cavity, and the other end of the air inlet valve is communicated with the air injection valve in the gas injection system; the driving control block is arranged on the air inlet valve and is communicated with external high-pressure hydraulic oil; the accumulator is communicated with the fuel gas control block, is used for storing high-pressure hydraulic oil and is communicated with the driving control block through a fourth oil pipe; the scavenging valve is arranged on the gas control block and is communicated with the pressure accumulator through an oil pipe. Through the structure, the complete separation of the air path and the oil path is realized, and the safety performance is improved; through setting up gas control block and admission valve, realized storing steady voltage and control the function of spraying to gas, can realize supplying with gaseous constant pressure ration, guarantee the safety in utilization.
The gas injection system provided by the invention comprises the high-pressure gas injection control driving valve, can realize accurate control of the gas injection quantity, and is high in safety.
The engine provided by the invention comprises the fuel gas injection system, and the engine is high in use safety performance.
Drawings
FIG. 1 is a schematic view of a high pressure fuel injection control actuator valve according to an embodiment of the present invention;
FIG. 2 is a schematic view of another view of a high pressure fuel injection control actuator valve according to an embodiment of the present invention;
FIG. 3 is a schematic view of a further view of a high pressure fuel injection control actuator valve according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a high pressure fuel injection control actuation valve provided in accordance with an embodiment of the present invention;
fig. 5 is a top view of a high pressure fuel injection control actuation valve provided in accordance with an embodiment of the present invention.
In the figure:
1. A gas control block; 11. a gas storage chamber; 12. an oil outlet; 13. a first pipe joint; 14. a second pipe joint; 15. a seventh pipe joint; 16. an air outlet; 17. a first gas monitoring port; 18. a second gas monitoring port; 19. a scavenging port;
2. An intake valve;
3. a drive control block; 31. a fifth pipe joint; 32. a sixth pipe joint;
4. an accumulator;
5. a scavenging valve; 51. a third pipe joint; 52. a fourth pipe joint;
6. the injection valve drives the electromagnetic valve;
7. the fuel gas injection control drives the electromagnetic valve;
8. an air inlet pipe connecting flange; 81. and a third gas monitoring port.
Detailed Description
In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the invention more clear, the technical scheme of the invention is further described below by a specific embodiment in combination with the attached drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
The embodiment discloses a high-pressure gas injection control driving valve, which has the functions of stabilizing gas pressure, controlling gas supply, stabilizing high-pressure hydraulic oil, controlling high-pressure hydraulic oil supply and the like, and realizes oil-gas separation and safety protection.
As shown in fig. 1 to 5, the high-pressure fuel injection control drive valve mainly includes a fuel gas control block 1, an intake pipe connecting flange 8, a scavenging valve 5, a drive control block 3, an accumulator 4, an injection valve drive solenoid valve 6, an intake valve 2, and a fuel gas injection control drive solenoid valve 7.
Wherein, intake pipe flange 8, scavenging valve 5 and accumulator 4 are all installed on gas control block 1. Specifically, the gas control block 1 is hollow, and is provided with a gas storage cavity 11, the gas inlet pipe connecting flange 8 is arranged at the bottom of the gas control block 1, external high-pressure gas is communicated with the gas storage cavity 11 through the gas inlet pipe connecting flange 8, and the external gas enters the gas storage cavity 11 and is stabilized in pressure and servo for later use. The accumulator 4 can store high-pressure hydraulic oil, the scavenging valve 5 is used for purging the gas leaked from the gas control block 1, the scavenging valve 5 and the accumulator 4 are respectively arranged on the side wall of the gas control block 1, and the accumulator 4 is communicated with the scavenging valve 5 through an oil pipe. The air inlet valve 2 is arranged at the top of the gas control block 1 and is communicated with the gas storage cavity 11. The side wall of the gas control block 1 is also provided with a gas outlet 16, one end of the gas outlet 16 is communicated with the gas inlet valve 2, and the other end is communicated with a gas injection valve in the gas injection system. A drive control block 3 is mounted on the intake valve 2, and an injection valve drive solenoid valve 6 and a gas injection control drive solenoid valve 7 are mounted on the drive control block 3. The drive control block 3 communicates with a gas injection control drive solenoid valve 7 through an internal pipe, and the gas injection control drive solenoid valve 7 can communicate with the intake valve 2 and the injection valve drive solenoid valve 6. An oil outlet 12 is also arranged on the side wall of the gas control block 1, one end of the oil outlet 12 is communicated with the driving control block 3, and the other end is communicated with an injection valve in the gas injection system.
Once the concentration of the leaked fuel gas is too high to exceed a safe value, an explosion may occur upon contact with air. In order to prevent the safety problem caused by the too high concentration of leaked fuel gas, the high-pressure fuel gas injection control driving valve in the embodiment further comprises a fuel gas concentration monitoring component. The gas concentration monitoring assembly includes a plurality of gas concentration sensors disposed at each of the leak points. Specifically, each leakage point of the gas control block 1 and the gas inlet pipe connecting flange 8 is provided with a gas monitoring port, and a gas concentration sensor is arranged at each gas monitoring port and used for monitoring the gas concentration in real time, so that the safety is improved. In the present embodiment, the bottom of the gas control block 1 and the top of the gas control block 1 are respectively provided with a first gas monitoring port 17 and a second gas monitoring port 18, and the side wall of the gas inlet pipe connecting flange 8 is provided with a third gas monitoring port 81.
In the present embodiment, two scavenging valves 5 are provided and are respectively installed at the upper and lower portions of the gas control block 1. In order to realize the communication between the accumulator 4 and the scavenging valve 5, the gas control block 1 and the scavenging valve 5 are respectively provided with pipe joints, and the pipe joints are communicated through oil pipes. Specifically, the upper and lower parts of the gas control block 1 are respectively provided with a first pipe joint 13 and a second pipe joint 14, the scavenging valve 5 located at the upper part of the gas control block 1 is provided with a third pipe joint 51, the scavenging valve 5 located at the lower part of the gas control block 1 is provided with a fourth pipe joint 52, the first pipe joint 13 and the third pipe joint 51 are connected by a first oil pipe (not shown in the figure), and the second pipe joint 14 and the fourth pipe joint 52 are connected by a second oil pipe (not shown in the figure). With the above-described structure, the high-pressure hydraulic oil in the accumulator 4 can reach the scavenging valve 5 through the first oil pipe and the second oil pipe.
If the leaked fuel gas in the fuel gas control block 1 is accumulated to a certain concentration, explosion occurs, and thus the leaked fuel gas must be purged. In view of this, the gas control block 1 is provided with a scavenging port 19, and the scavenging port 19 communicates with the scavenging valve 5. Specifically, the leaked fuel gas blown out through the scavenging valve 5 is connected to the scavenging port 19 through the internal air passage, and flows out from the scavenging port 19 to the external process.
The fifth pipe joint 31 and the sixth pipe joint 32 are arranged on the driving control block 3, and the seventh pipe joint 15 is arranged on the top of the gas control block 1. The external high-pressure hydraulic oil enters the drive control block 3 from the fifth pipe joint 31 through the third oil pipe. The sixth pipe joint 32 and the seventh pipe joint 15 are connected by a fourth oil pipe through which the high-pressure hydraulic oil in the drive control block 3 is passed to the accumulator 4.
The operation of the high-pressure fuel injection control drive valve in this embodiment will be briefly described.
The high-pressure hydraulic oil enters the driving control block 3 from the fifth pipe joint 31 and then enters the accumulator 4 through the fourth oil pipe; the high-pressure hydraulic oil in the accumulator 4 reaches the scavenging valve 5 through the first oil pipe and the second oil pipe, meanwhile, the high-pressure hydraulic oil enters the fuel gas injection control driving electromagnetic valve 7 through the internal pipeline of the driving control block 3, and the fuel gas injection control driving electromagnetic valve 7 receives an electric signal and then opens a passage to enable the high-pressure hydraulic oil to enter the air inlet valve 2 and the injection valve driving electromagnetic valve 6; the high-pressure hydraulic oil drives the air inlet valve 2 to act, the air inlet valve 2 is opened, gas in the gas storage cavity 11 flows out from the air outlet 16 through the air inlet valve 2, and the gas flows to the air injection valve in the gas injection system to provide high-pressure gas for the air injection valve; after the electromagnetic valve 6 is driven by the injection valve to obtain an electric signal, the high-pressure hydraulic oil in the driving control block 3 is sent to the injection valve in the fuel gas injection system through the oil port to supply the high-pressure hydraulic oil for the injection valve.
The high-pressure fuel injection control driving valve provided by the embodiment has the advantages that the gas flows in the fuel gas control block 1, the high-pressure hydraulic oil flows in the first oil pipe, the second oil pipe and the fourth oil pipe, the gas circuit is completely separated from the oil circuit, and the oil-gas mixture and the danger caused by the oil-gas mixture are avoided. The adoption of the double-valve control mode of the injection valve driving electromagnetic valve 6 and the fuel gas injection control driving electromagnetic valve 7 realizes the accurate control of the fuel gas injection quantity, can avoid the safety problems of cylinder explosion and the like caused by the injection of excessive fuel gas into the cylinder, and has double protection effects. The gas control block 1 and the gas inlet valve 2 realize the storage and pressure stabilization of gas, and directly control the gas to enter the gas injection valve for injection, so that the constant pressure and the fixed quantity of the supplied gas can be realized. Through setting up gas concentration monitoring component at the leak point, can effectively avoid revealing that gas concentration exceeds standard and explode.
The embodiment also provides a gas injection system, which comprises the high-pressure gas injection control driving valve, can realize accurate control of the gas injection quantity and has high safety.
The embodiment also provides an engine, which comprises the fuel gas injection system, and the engine is high in use safety performance.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (4)
1. A high-pressure fuel injection control drive valve, characterized by comprising:
the gas control block (1), the gas control block (1) is internally provided with a gas storage cavity (11), and the gas storage cavity (11) is communicated with external high-pressure gas;
The air inlet valve (2) is arranged on the gas control block (1), one end of the air inlet valve (2) is communicated with the gas storage cavity (11), and the other end of the air inlet valve is communicated with an air injection valve in the gas injection system;
The driving control block (3) is arranged on the air inlet valve (2), and the driving control block (3) is communicated with external high-pressure hydraulic oil;
The pressure accumulator (4) is communicated with the fuel gas control block (1), the pressure accumulator (4) is used for storing high-pressure hydraulic oil, and the pressure accumulator (4) is communicated with the driving control block (3) through an oil pipe;
The scavenging valve (5), the scavenging valve (5) is provided with two, are respectively installed on the upper part and the lower part of the gas control block (1), the gas control block (1) is provided with a first pipe joint (13) and a second pipe joint (14), the scavenging valve (5) positioned on the upper part of the gas control block (1) is provided with a third pipe joint (51), the scavenging valve (5) positioned on the lower part of the gas control block (1) is provided with a fourth pipe joint (52), the first pipe joint (13) and the third pipe joint (51) are connected through a first oil pipe, and the second pipe joint (14) and the fourth pipe joint (52) are connected through a second oil pipe;
An injection valve driving electromagnetic valve (6) and a fuel gas injection control driving electromagnetic valve (7) which are arranged on the driving control block (3), wherein the fuel gas injection control driving electromagnetic valve (7) is communicated with the driving control block (3) through an internal pipeline, the high-pressure hydraulic oil can circulate in the internal pipeline, the fuel gas injection control driving electromagnetic valve (7) can be communicated with the air inlet valve (2) and the injection valve driving electromagnetic valve (6), and the high-pressure hydraulic oil can drive the air inlet valve (2) to be opened after entering the air inlet valve (2) so as to enable the high-pressure gas in the gas storage cavity (11) to flow to the air injection valve; the injection valve driving electromagnetic valve (6) can drive the high-pressure hydraulic oil to flow to an injection valve in a fuel gas injection system;
The gas concentration monitoring assembly comprises a plurality of gas concentration sensors arranged at each leakage point and is used for monitoring the concentration of leaked gas in real time;
An oil outlet (12) is arranged on the side wall of the fuel gas control block (1), one end of the oil outlet (12) is communicated with the driving control block (3), and the other end of the oil outlet is communicated with the injection valve.
2. The high-pressure gas injection control driving valve according to claim 1, further comprising an intake pipe connecting flange (8) mounted at the bottom of the gas control block (1), wherein the high-pressure gas is communicated with the gas storage chamber (11) through the intake pipe connecting flange (8).
3. A gas injection system comprising the high-pressure gas injection control driving valve according to any one of claims 1 to 2.
4. An engine comprising the gas injection system of claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910858183.3A CN110439712B (en) | 2019-09-11 | 2019-09-11 | High-pressure gas injection control driving valve, gas injection system and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910858183.3A CN110439712B (en) | 2019-09-11 | 2019-09-11 | High-pressure gas injection control driving valve, gas injection system and engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110439712A CN110439712A (en) | 2019-11-12 |
| CN110439712B true CN110439712B (en) | 2024-05-14 |
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| CN201910858183.3A Active CN110439712B (en) | 2019-09-11 | 2019-09-11 | High-pressure gas injection control driving valve, gas injection system and engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6988489B2 (en) * | 2003-06-06 | 2006-01-24 | Nissan Kohki Co., Ltd. | Fuel injection valve protecting apparatus and fuel pressure increase preventing apparatus in LPG injection type engine |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10220303A (en) * | 1997-02-04 | 1998-08-18 | Kubota Corp | Fuel gas injector for spark ignition type gas engine |
| CN1605741A (en) * | 2004-11-12 | 2005-04-13 | 原泽 | Hybrid power system using cleaning fuel |
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