CN110439712A - A kind of high-pressure gas injection control driving valve, gas injection system and engine - Google Patents
A kind of high-pressure gas injection control driving valve, gas injection system and engine Download PDFInfo
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- CN110439712A CN110439712A CN201910858183.3A CN201910858183A CN110439712A CN 110439712 A CN110439712 A CN 110439712A CN 201910858183 A CN201910858183 A CN 201910858183A CN 110439712 A CN110439712 A CN 110439712A
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- gas injection
- oil
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- 238000002347 injection Methods 0.000 title claims abstract description 98
- 239000007924 injection Substances 0.000 title claims abstract description 98
- 239000007789 gas Substances 0.000 claims abstract description 115
- 239000003921 oil Substances 0.000 claims abstract description 65
- 239000000567 combustion gas Substances 0.000 claims abstract description 64
- 230000002000 scavenging effect Effects 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 9
- 239000002737 fuel gas Substances 0.000 claims description 23
- 238000012544 monitoring process Methods 0.000 claims description 18
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 abstract description 6
- 239000000446 fuel Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000005474 detonation Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010408 sweeping 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 marine engine technical field, a kind of high-pressure gas injection control driving valve, gas injection system and engine are disclosed.Air storing cavity, air storing cavity and external high pressure gas connection are provided in the combustion gas control block of high-pressure gas injection control driving valve;Intake valve is installed in combustion gas control block, and one end of intake valve is connected to air storing cavity, and the other end is connected to the snifting valve in gas injection system;Drive control block is installed on intake valve, and drive control block is connected to external high pressure hydraulic oil;Accumulator connection is set in combustion gas control block, and accumulator is connected to by the 4th oil pipe with drive control block for storing high pressure liquid pressure oil, accumulator;Scavenging air valve is set in combustion gas control block, and scavenging air valve is connected to by oil pipe with accumulator.Being kept completely separate for gas circuit and oil circuit is realized, security performance is improved;By setting combustion gas control block and intake valve, realizes and the function of storage pressure stabilizing and control injection is carried out to gas, it can be achieved that supply gas level pressure is quantitative.
Description
Technical field
The present invention relates to marine engine technical fields more particularly to a kind of high-pressure gas injection control to drive valve, combustion gas
Spraying system and engine.
Background technique
With the sustainable development of global economy, demand of the people to the energy is still being constantly increasing, and current world wide
Interior oil shortage and global problem of environmental pollution becomes increasingly conspicuous so that various countries one after another turn to sight using gas as fuel
Gas machine and double fuel machine.And fuel gas injection control driving valve directly controls element and just need not set as what gaseous fuel sprayed
The doubtful part one of most crucial as gas machine and double fuel machine.Engine spray valve realize injection fuel functional, need according to
Driving valve is controlled by fuel gas injection, and high-pressure gas and high pressure liquid pressure oil are provided.
Fuel gas injection control driving valve need to provide high-pressure gas and high pressure liquid pressure oil simultaneously, therefore, avoid at work
Air-fuel mixture to avoid danger.High-pressure gas has inflammable and explosive characteristic, will lead to excess when lacking combustion gas protective device
Combustion gas sprays into cylinder and causes the safety problems such as detonation.So needing accurately to control fuel gas injection amount in gas injection system.
Summary of the invention
It is an object of the present invention to provide a kind of high-pressure gas injection control drive valve, can stabilizing gas pressure,
Gas supply, stable high voltage hydraulic oil and control high pressure liquid Pressure oil feeder are controlled, and is able to achieve Oil-gas Separation.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of high-pressure gas injection control driving valve, comprising:
Combustion gas control block is provided with air storing cavity, the air storing cavity and external high pressure gas connection in the combustion gas control block;
Intake valve is installed in the combustion gas control block, and one end of the intake valve is connected to the air storing cavity, the other end
It is connected to the snifting valve in gas injection system;
Drive control block is installed on the intake valve, and the drive control block is connected to external high pressure hydraulic oil;
Accumulator, connection are set in the combustion gas control block, and the accumulator is for storing high pressure liquid pressure oil, the storage
Depressor is connected to by oil pipe with the drive control block;
Scavenging air valve is set in the combustion gas control block, and the scavenging air valve is connected to by oil pipe with the accumulator.
It further include the injection valve drive magnetic valve and combustion gas being mounted on the drive control block as optimal technical scheme
Injection control drive magnetic valve, the fuel gas injection control drive magnetic valve and the drive control block are connected by internal pipeline
Logical, the high pressure liquid pressure oil can circulate in the internal pipeline, the fuel gas injection control drive magnetic valve can with it is described into
Air valve is connected to the injection valve drive magnetic valve, and the high pressure liquid pressure oil can drive the intake valve after entering the intake valve
It opens, so that the high pressure gas in the air storing cavity flow to the snifting valve;The injection valve drive magnetic valve can drive
Injection valve of the high-pressure and hydraulic oil stream into gas injection system.
As optimal technical scheme, oil outlet, one end of the oil outlet are provided on the side wall of the combustion gas control block
It is connected to the drive control block, the other end is connected to the injection valve.
Further include gas concentration monitoring assembly as optimal technical scheme, reveals gas concentration for real-time monitoring.
As optimal technical scheme, the gas concentration monitoring assembly includes multiple gas concentrations that each leakage point is arranged in
Sensor.
As optimal technical scheme, there are two the scavenging air valve settings, is respectively arranged in the top of the combustion gas control block
And lower part, two scavenging air valves pass through the first oil pipe respectively and the second oil pipe is connected to the accumulator.
As optimal technical scheme, it is provided with the first pipe fitting and the second pipe fitting in the combustion gas control block, is located at institute
It states and is provided with third pipe fitting on the scavenging air valve on the top of combustion gas control block, the institute positioned at the lower part of the combustion gas control block
It states and is provided with the 4th pipe fitting on scavenging air valve, first pipe fitting and the third pipe fitting are connected by first oil pipe
It connects, second pipe fitting is connected with the 4th pipe fitting by second oil pipe.
It further include the air inlet pipe connecting flange for being installed on combustion gas control block bottom as optimal technical scheme, it is described
High pressure gas is connected by the air inlet pipe connecting flange with the air storing cavity.
It is yet a further object of the present invention to provide a kind of gas injection system, which can realize gas injection
The accurate control for the amount of penetrating, it is highly-safe.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of gas injection system, including high-pressure gas injection control as described above drive valve.
Yet another object of the invention is that providing a kind of engine, the usage safety performance of the engine is higher.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of engine, including gas injection system as described above.
Compared with prior art, advantages of the present invention and beneficial effect are:
High-pressure gas injection control provided by the invention drives valve, is provided with air storing cavity in combustion gas control block, air storing cavity with
External high pressure gas connection;Intake valve is installed in combustion gas control block, and one end of intake valve is connected to air storing cavity, the other end and combustion
Snifting valve connection in gas jet system;Drive control block is installed on intake valve, drive control block and external high pressure hydraulic oil
Connection;Accumulator connection is set in combustion gas control block, and accumulator passes through the 4th oil pipe for storing high pressure liquid pressure oil, accumulator
It is connected to drive control block;Scavenging air valve is set in combustion gas control block, and scavenging air valve is connected to by oil pipe with accumulator.By above-mentioned
Structure realizes being kept completely separate for gas circuit and oil circuit, improves security performance;It is real by setting combustion gas control block and intake valve
Show and the function of storage pressure stabilizing and control injection is carried out to gas, it can be achieved that supply gas level pressure is quantitative, has guaranteed safety in utilization.
Gas injection system provided by the invention drives valve, the fuel gas injection including above-mentioned high-pressure gas injection control
System can realize the accurate control of fuel gas injection amount, and highly-safe.
Engine provided by the invention, including above-mentioned gas injection system, the usage safety performance of the engine is higher.
Detailed description of the invention
Fig. 1 is that the structure at a visual angle of the high-pressure gas injection control driving valve that the specific embodiment of the invention provides is shown
It is intended to;
Fig. 2 is that the structure at another visual angle for the high-pressure gas injection control driving valve that the specific embodiment of the invention provides is shown
It is intended to;
Fig. 3 is that the structure at the another visual angle for the high-pressure gas injection control driving valve that the specific embodiment of the invention provides is shown
It is intended to;
Fig. 4 is the cross-sectional view for the high-pressure gas injection control driving valve that the specific embodiment of the invention provides;
Fig. 5 is the top view for the high-pressure gas injection control driving valve that the specific embodiment of the invention provides.
In figure:
1, combustion gas control block;11, air storing cavity;12, oil outlet;13, the first pipe fitting;14, the second pipe fitting;15, the 7th
Pipe fitting;16, gas outlet;17, the first gas monitoring mouth;18, the second gas monitoring mouth;19, scavenging port;
2, intake valve;
3, drive control block;31, the 5th pipe fitting;32, the 6th pipe fitting;
4, accumulator;
5, scavenging air valve;51, third pipe fitting;52, the 4th pipe fitting;
6, injection valve drive magnetic valve;
7, fuel gas injection controls drive magnetic valve;
8, air inlet pipe connecting flange;81, third gas monitoring mouth.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
In conjunction with attached drawing and pass through specific embodiment to further illustrate the technical scheme of the present invention.
In the description of the present invention unless specifically defined or limited otherwise, term " connected ", " connection ", " fixation " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or is integral;It can be mechanical connection,
It can be electrical connection;It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
Logical or two elements interaction relationship.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
In the description of the present embodiment, term " on ", "lower", " right side ", etc. orientation or positional relationships be based on shown in attached drawing
Orientation or positional relationship, be merely for convenience of description and simplification operation, rather than the device or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition,
Term " first ", " second " are only used to distinguish between description, and have no special meaning.
Present embodiment discloses a kind of high-pressure gas injection control driving valve, has stabilizing gas pressure, control gas
The functions such as supply, stable high voltage hydraulic oil and control high pressure liquid Pressure oil feeder, and realize Oil-gas Separation and safeguard protection.
As Figure 1-Figure 5, high-pressure gas injection control driving valve mainly includes combustion gas control block 1, air inlet pipe connection
Flange 8, scavenging air valve 5, drive control block 3, accumulator 4, injection valve drive magnetic valve 6, intake valve 2 and fuel gas injection control driving
Solenoid valve 7.
Wherein, air inlet pipe connecting flange 8, scavenging air valve 5 and accumulator 4 are mounted in combustion gas control block 1.Specifically,
The inner hollow of combustion gas control block 1 has air storing cavity 11, and air inlet pipe connecting flange 8 is installed on the bottom of combustion gas control block 1, outside
Portion's high pressure gas is connected by air inlet pipe connecting flange 8 with air storing cavity 11, and extraneous gas enters pressure stabilizing servo after air storing cavity 11
For use.High pressure liquid pressure oil can be stored in accumulator 4, scavenging air valve 5 is used to purge the combustion gas of 1 internal leakage of combustion gas control block, scavenging
Valve 5 and accumulator 4 are separately mounted to the side wall of combustion gas control block 1, and accumulator 4 is connected to scavenging air valve 5 by oil pipe.Intake valve
2 are installed on the top of combustion gas control block 1, and are connected with air storing cavity 11.Gas outlet is additionally provided on the side wall of combustion gas control block 1
16, one end of gas outlet 16 is connected with intake valve 2, and the other end is connected with the snifting valve in gas injection system.Driving control
Clamp dog 3 is mounted on intake valve 2, and injection valve drive magnetic valve 6 and fuel gas injection control drive magnetic valve 7 are mounted on drive control
On block 3.Drive control block 3 is connected to fuel gas injection control drive magnetic valve 7 by internal pipeline, fuel gas injection control driving electricity
Magnet valve 7 can be connected to intake valve 2 and injection valve drive magnetic valve 6.Oil outlet 12 is additionally provided on the side wall of combustion gas control block 1,
One end of oil outlet 12 is connected to drive control block 3, and the other end is connected to the injection valve in gas injection system.
Once it is more than safety value that leakage gas concentration, which is crossed up to, explosion can be generated by contacting with air.To prevent leakage combustion gas
Excessive concentration causes safety problem, and the high-pressure gas injection control driving valve in present embodiment further includes gas concentration monitoring group
Part.Gas concentration monitoring assembly includes multiple gas concentration sensors that each leakage point is arranged in.Specifically, combustion gas control block 1
It is equipped with gas monitoring mouth at each leakage point of air inlet pipe connecting flange 8, gas concentration is installed at each gas monitoring mouth and is passed
Sensor is used to real-time monitoring gas concentration, improves safety.In the present embodiment, the bottom of combustion gas control block 1 and combustion gas
The top of control block 1 is respectively equipped with the first gas monitoring mouth 17 and the second gas monitoring mouth 18, the side wall of air inlet pipe connecting flange 8
On be provided with third gas monitoring mouth 81.
In the present embodiment, there are two the settings of scavenging air valve 5, it is respectively arranged in the upper and lower part of combustion gas control block 1.For
Realize being connected to for accumulator 4 and scavenging air valve 5, be respectively arranged with pipe fitting in combustion gas control block 1 and scavenging air valve 5, pipe fitting it
Between pass through oil pipe be connected to.Specifically, the upper and lower part of combustion gas control block 1 is respectively arranged with the first pipe fitting 13 and the second pipe
Connector 14 is provided with third pipe fitting 51 on the scavenging air valve 5 on the top of combustion gas control block 1, under combustion gas control block 1
The 4th pipe fitting 52 is provided on the scavenging air valve 5 in portion, the first pipe fitting 13 and third pipe fitting 51 pass through the first oil pipe (in figure not
Show) it connects, the second pipe fitting 14 is connected with the 4th pipe fitting 52 by the second oil pipe (not shown).Pass through above structure
It is arranged, the high pressure liquid pressure oil in accumulator 4 can pass through the first oil pipe and the second oil pipe reaches scavenging air valve 5.
If the leakage combustion gas in combustion gas control block 1 is accumulated to a certain concentration, it may occur that explosion, it is therefore necessary to purge out and leak
Combustion gas.In consideration of it, being provided with scavenging port 19 in combustion gas control block 1, scavenging port 19 is connected to scavenging air valve 5.Specifically, by sweeping
The leakage combustion gas that air valve 5 purges out is connected to scavenging port 19 by internal air flue, flows out to external treatment by scavenging port 19.
The 5th pipe fitting 31 and the 6th pipe fitting 32 are provided on drive control block 3, the top of combustion gas control block 1 is provided with
7th pipe fitting 15.External high pressure liquid pressure oil enters drive control block 3 from the 5th pipe fitting 31 by third oil pipe.6th pipe
Connector 32 is connected with the 7th pipe fitting 15 by the 4th oil pipe, and the high pressure liquid pressure oil in drive control block 3 is arrived by the 4th oil pipe
Accumulator 4.
The course of work of the high-pressure gas injection control driving valve in present embodiment is briefly described below.
High pressure liquid pressure oil enters drive control block 3 from the 5th pipe fitting 31, then enters accumulator 4 by the 4th oil pipe
In;High pressure liquid pressure oil in accumulator 4 reaches scavenging air valve 5 by the first oil pipe and the second oil pipe, while high pressure liquid pressure oil passes through
The internal pipeline of drive control block 3 enters fuel gas injection control drive magnetic valve 7, and fuel gas injection controls drive magnetic valve 7 and receives
Access is opened after electric signal, and high pressure liquid pressure oil is made to enter intake valve 2 and injection valve drive magnetic valve 6;High pressure hydraulic oil driver into
Air valve 2 acts, and intake valve 2 is opened, and the gas in air storing cavity 11 is flowed out by intake valve 2 from gas outlet 16, goes to fuel gas injection
Snifting valve in system provides high-pressure gas for it;After injection valve drive magnetic valve 6 obtains electric signal, in drive control block 3
High pressure liquid pressure oil provides high pressure liquid pressure oil by the injection valve that hydraulic fluid port is gone in gas injection system for it.
The high-pressure gas injection control that present embodiment provides drives valve, and gas flows in combustion gas control block 1, high pressure liquid
Pressure oil flows in the first oil pipe, the second oil pipe and the 4th oil pipe, and gas circuit is kept completely separate with oil circuit, avoid air-fuel mixture and because
Air-fuel mixture bring is dangerous.Using injection valve drive magnetic valve 6 and the fuel gas injection control this bivalve of drive magnetic valve 7 control
Mode realizes the accurate control to fuel gas injection amount, can be avoided excessive combustion gas and the safety such as sprays into cylinder and cause detonation and asks
Topic has double protection.Combustion gas control block 1 and intake valve 2, which are realized, carries out storage pressure stabilizing to gas, and directly controls gas
Body enters snifting valve to spray, it can be achieved that the level pressure of supply gas is quantitative.By the way that gas concentration monitoring assembly is arranged in leakage point,
Can effectively avoid leakage, gas concentration is exceeded explodes.
Present embodiment additionally provides a kind of gas injection system, drives valve including above-mentioned high-pressure gas injection control,
The gas injection system can realize the accurate control of fuel gas injection amount, and highly-safe.
Present embodiment additionally provides a kind of engine, and including above-mentioned gas injection system, the use of the engine is pacified
Full performance is higher.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of high-pressure gas injection control drives valve characterized by comprising
Combustion gas control block (1), the combustion gas control block (1) is interior to be provided with air storing cavity (11), and the air storing cavity (11) and outside are high
Press gas connection;
Intake valve (2) is installed on the combustion gas control block (1), and one end and the air storing cavity (11) of the intake valve (2) are even
Logical, the other end is connected to the snifting valve in gas injection system;
Drive control block (3) is installed on the intake valve (2), and the drive control block (3) and external high pressure hydraulic oil connect
It is logical;
Accumulator (4), connection are set on the combustion gas control block (1), and the accumulator (4) is used to store high pressure liquid pressure oil,
The accumulator (4) is connected to by oil pipe with the drive control block (3);
Scavenging air valve (5) is set on the combustion gas control block (1), and the scavenging air valve (5) passes through oil pipe and the accumulator (4)
Connection.
2. high-pressure gas injection control according to claim 1 drives valve, which is characterized in that further include being mounted on the drive
Injection valve drive magnetic valve (6) and fuel gas injection control drive magnetic valve (7) on dynamic control block (3), the fuel gas injection control
Drive magnetic valve (7) processed is connected to the drive control block (3) by internal pipeline, and the high pressure liquid pressure oil can be in the inside
It circulates in pipeline, fuel gas injection control drive magnetic valve (7) can drive electromagnetism with the intake valve (2) and the injection valve
Valve (6) connection, the high pressure liquid pressure oil can drive the intake valve (2) to open after entering the intake valve (2), so that described
High pressure gas in air storing cavity (11) flow to the snifting valve;The injection valve drive magnetic valve (6) can drive the high pressure
Hydraulic oil flow to the injection valve in gas injection system.
3. high-pressure gas injection control according to claim 2 drives valve, which is characterized in that the combustion gas control block (1)
Side wall on be provided with oil outlet (12), one end of the oil outlet (12) is connected to the drive control block (3), the other end with
The injection valve connection.
4. high-pressure gas injection control according to claim 1 drives valve, which is characterized in that further include gas concentration monitoring
Component reveals gas concentration for real-time monitoring.
5. high-pressure gas injection control according to claim 4 drives valve, which is characterized in that the gas concentration monitoring group
Part includes multiple gas concentration sensors that each leakage point is arranged in.
6. high-pressure gas injection control according to claim 1 drives valve, which is characterized in that scavenging air valve (5) setting
There are two, it is respectively arranged in the upper and lower part of the combustion gas control block (1), two scavenging air valves (5) pass through first respectively
Oil pipe and the second oil pipe are connected to the accumulator (4).
7. high-pressure gas injection control according to claim 6 drives valve, which is characterized in that the combustion gas control block (1)
On be provided with the first pipe fitting (13) and the second pipe fitting (14), be located at the combustion gas control block (1) top the scavenging
It is provided with third pipe fitting (51) on valve (5), is located on the scavenging air valve (5) of the lower part of the combustion gas control block (1) and is arranged
There is the 4th pipe fitting (52), first pipe fitting (13) is connected with the third pipe fitting (51) by first oil pipe,
Second pipe fitting (14) is connected with the 4th pipe fitting (52) by second oil pipe.
8. high-pressure gas injection control according to claim 3 drives valve, which is characterized in that further include being installed on the combustion
The air inlet pipe connecting flange (8) of gas control clamp dog (1) bottom, the high pressure gas pass through the air inlet pipe connecting flange (8) and institute
Air storing cavity (11) is stated to be connected.
9. a kind of gas injection system, which is characterized in that including the described in any item high-pressure gas injection controls of such as claim 1-8
System driving valve.
10. a kind of engine, which is characterized in that including gas injection system as claimed in claim 9.
Priority Applications (1)
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CN201910858183.3A CN110439712B (en) | 2019-09-11 | 2019-09-11 | High-pressure gas injection control driving valve, gas injection system and engine |
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CN201910858183.3A CN110439712B (en) | 2019-09-11 | 2019-09-11 | High-pressure gas injection control driving valve, gas injection system and engine |
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US20040244778A1 (en) * | 2003-06-06 | 2004-12-09 | Shuji Tanaka | Fuel injection valve protecting apparatus and fuel pressure increase preventing apparatus in LPG injection type engine |
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