CN114658571B - Hydrogen fuel engine and control method thereof - Google Patents

Hydrogen fuel engine and control method thereof Download PDF

Info

Publication number
CN114658571B
CN114658571B CN202210536181.4A CN202210536181A CN114658571B CN 114658571 B CN114658571 B CN 114658571B CN 202210536181 A CN202210536181 A CN 202210536181A CN 114658571 B CN114658571 B CN 114658571B
Authority
CN
China
Prior art keywords
engine
pipeline
precombustor
valve
air
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.)
Active
Application number
CN202210536181.4A
Other languages
Chinese (zh)
Other versions
CN114658571A (en
Inventor
李旺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Zhongneng Xikong Low Carbon Power Equipment Co ltd
Original Assignee
Sichuan Zhongneng Xikong Low Carbon Power Equipment Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sichuan Zhongneng Xikong Low Carbon Power Equipment Co ltd filed Critical Sichuan Zhongneng Xikong Low Carbon Power Equipment Co ltd
Priority to CN202210536181.4A priority Critical patent/CN114658571B/en
Publication of CN114658571A publication Critical patent/CN114658571A/en
Application granted granted Critical
Publication of CN114658571B publication Critical patent/CN114658571B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0206—Non-hydrocarbon fuels, e.g. hydrogen, ammonia or carbon monoxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/10—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
    • F02B19/1019—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/10—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
    • F02B19/1019—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber
    • F02B19/108—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber with fuel injection at least into pre-combustion chamber, i.e. injector mounted directly in the pre-combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/12—Engines characterised by precombustion chambers with positive ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0002—Controlling intake air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0047—Controlling exhaust gas recirculation [EGR]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/3005—Details not otherwise provided for
    • 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
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
    • F02D2200/101—Engine speed
    • 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)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

The invention discloses a hydrogen fuel engine and a control method thereof, and relates to the technical field of hydrogen fuel engines. The utility model provides a hydrogen fuel engine and control method thereof, including air-gas blender and camshaft phase sensor that is provided with two inlet ends and an end of giving vent to anger, air-gas blender's end of giving vent to anger is through the pipeline fixedly connected with intercooler after the pressure boost, the intercooler other end fixedly connected with intercooler back pipeline, the intercooler back pipeline other end is provided with two outlet ducts, its an outlet duct has connected gradually filter, electric compressor and stabiliser through the pipeline and passes through, prechamber gas piping connection has prechamber switch check valve, prechamber switch check valve passes through the pipeline and installs the prechamber of spark plug. The invention can reduce the treatment cost after the engine is discharged by arranging the lean combustion precombustion chamber and the EGR system, and can increase the heat efficiency by arranging the precombustion chamber.

Description

Hydrogen fuel engine and control method thereof
Technical Field
The invention relates to the technical field of hydrogen fuel engines, in particular to a hydrogen fuel engine and a control method thereof.
Background
Internal combustion engines fuelled with combustible gas are collectively referred to as gaseous fuel engines, hydrogen being free of carbon and CO2 being not produced after combustion. The hydrogen can be obtained through renewable energy sources such as solar energy, wind energy and the like, is considered as an ideal energy source or energy carrier, an engine using the hydrogen as fuel is called a hydrogen fuel engine, and compared with the traditional hydrogen fuel engine, the hydrogen fuel engine is cleaner, and meanwhile has higher thermal efficiency and is short for recycling EGR exhaust gas. Exhaust gas recirculation refers to returning a portion of the exhaust gas from the engine to the intake manifold and re-entering the cylinders with fresh air mixture, with the provision of a pre-combustion chamber that increases the combustion efficiency of the engine.
At present, on a hydrogen fuel engine, the cost of a lean combustion technical route in exhaust aftertreatment is high, the maintenance cost is high, the EGR rate of the engine with an equivalent combustion and EGR technical route cannot be too high, the combustion is slow, and the thermal efficiency is low.
Disclosure of Invention
The present invention is directed to a hydrogen fuel engine and a control method thereof, which solve the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a hydrogen fuel engine, includes air gas blender and camshaft phase sensor that is provided with two inlet ends and one end of giving vent to anger, the end of giving vent to anger of air gas blender is through the pipeline fixedly connected with intercooler after the pressure boost, intercooler other end fixedly connected with intercooling pipeline, the pipeline other end is provided with two outlet ducts after the intercooling, one of them the outlet duct has connected gradually filter, electric compressor and stabiliser through the pipeline and passes through, prechamber gas pipeline connection has prechamber switch check valve, prechamber switch check valve passes through the pipeline and installs the prechamber of spark plug, another the outlet duct is through pipeline fixedly connected with electronic throttle and EGR blender in proper order, EGR blender other end fixedly connected with intake manifold, the intake manifold other end all is connected with the engine, engine end fixedly connected with blast pipe, the blast pipe other end is provided with the branch pipe, branch pipe one end is connected with the exhaust gas measuring and supplying unit of installing oxygen sensor, the EGR measuring and supplying unit other end is linked together with the EGR blender through pipeline in proper order, the temperature sensor is installed to the inner wall behind the engine, the temperature sensor is installed to the prechamber, the temperature sensor is installed to the pressure sensor is installed to the inner wall, the temperature sensor is installed to the prechamber.
Further, one of the two air inlet ends of the air-gas mixer is fixedly connected with a gas supply metering valve, and the precombustor is communicated with an engine.
Further, the throttle front temperature pressure sensor and the air inlet pipe temperature pressure sensor are respectively and electrically connected with the electronic throttle valve.
Further, the engine is electrically connected with the electronic throttle valve and the precombustor switch check valve respectively.
Further, the precombustor check valve air feed pressure temperature sensor is electrically connected with the precombustor switch check valve and the precombustor.
Furthermore, a precombustor injection valve is arranged in the precombustor, and the precombustor injection valve is electrically connected with a precombustor one-way valve air supply pressure and temperature sensor and is communicated with the precombustor switch one-way valve.
A control method of a hydrogen fuel engine, which uses a hydrogen fuel engine, comprises the following steps of
The opening degree of the electronic throttle valve and the injection pulse width of the injection valve of the precombustor are controlled together by the power requirement of the engine, the rotating speed requirement of the engine and the injection quantity ratio of the precombustor;
the opening of the electronic throttle valve is also controlled by the pressure temperature of the air inlet pipe fed back by the temperature pressure sensor of the air inlet pipe.
A control method of a hydrogen fuelled engine, the engine speed demand and the engine power demand together controlling a fuel gas supply amount to a fuel gas supply metering valve.
Further, the control of the fuel gas supply is also controlled by the readings fed back by the oxygen sensor.
Furthermore, the precombustor injection valve is also controlled by the precombustor check valve air supply pressure and temperature fed back by the precombustor check valve air supply pressure and temperature sensor.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the hydrogen fuel engine and the control method thereof, the air-fuel ratio of the precombustion chamber and the air-fuel ratio of the main combustion chamber are controlled by the same fuel gas supply metering valve, the logic is simple, the calibration work is reduced, and therefore maintenance and overhaul can be conveniently carried out.
(2) According to the hydrogen fuel engine and the control method thereof, the treatment cost after the engine is discharged can be reduced by arranging the lean combustion precombustor and the EGR system, and on the other hand, the heat efficiency can be increased by arranging the precombustor.
(3) According to the hydrogen fuel engine and the control method thereof, the throttle opening and the injection pulse width of the check valve of the precombustor can be automatically judged by the air inlet model through calibrating the metering ratio of the precombustor.
Drawings
FIG. 1 is a schematic diagram of an engine operating system of the present invention;
FIG. 2 is a schematic diagram of an engine control system installation of the present invention;
fig. 3 is a control method diagram of the present invention.
In the figure: 1. a filter; 2. an electric compressor; 3. a voltage stabilizer; 4. a precombustion chamber; 5. a spark plug; 6. switching a check valve of the precombustor; 7. a precombustion chamber gas conduit; 8. an EGR mixer; 9. an intake manifold; 10. an EGR metering unit; 11. an exhaust pipe; 12. an EGR cooler; 13. a fuel gas supply metering valve; 14. an air-gas mixer; 15. a pressurized pipeline; 16. an oxygen sensor; 17. an intercooler; 18. an exhaust tail pipe; 19. an intercooling post-pipeline; 20. an electronic throttle valve; 21. a throttle front temperature pressure sensor; 22. a precombustion chamber check valve air supply pressure temperature sensor; 23. an intake pipe temperature pressure sensor; 24. camshaft phase sensor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be understood that the dimensions of the various elements shown in the figures are not drawn to actual scale, e.g., the thickness or width of some layers may be exaggerated relative to other layers for ease of description.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined or illustrated in one figure, no further detailed discussion or description thereof will be necessary in the following description of the figures.
Examples
When the design of the equivalent gas engine internal control system is carried out, the hydrogen fuel engine and the control method thereof are adopted to carry out the increase of the thermal efficiency of the engine and the accurate control of the mixing proportion of gas and control, and the proportion of the mixed gas entering the main combustion chamber and the mixed gas entering the precombustion chamber can be the same through the combined control of the same gas supply metering valve 13 and the air-gas mixer 14.
As shown in fig. 1-3, the present invention provides a technical solution: a hydrogen fuel engine and its control method, including setting up air-gas mixer 14 and camshaft phase sensor 24 of two air inlet ends and an air outlet end, the air outlet end of the air-gas mixer 14 is fixedly connected with intercooler 17 through the pipeline 15 after pressurizing, the other end of intercooler 17 is fixedly connected with the pipeline 19 after intercooling, the other end of pipeline 19 after intercooling has two air outlet pipes, its one air outlet pipe connects with filter 1, electric compressor 2 and stabiliser 3 sequentially through the pipeline and through, the prechamber gas pipeline 7 connects with prechamber on-off check valve 6, prechamber on-off check valve 6 connects with prechamber 4 fitted with spark plug 5 through the pipeline, another air outlet pipe connects with electronic throttle 20 and EGR mixer 8 sequentially through the pipeline, the other end of EGR mixer 8 is fixedly connected with intake manifold 9, the other end of intake manifold 9 is connected with engine, the exhaust pipe 11 is fixedly connected to the exhaust end of the engine, a branch pipe is arranged at the other end of the exhaust pipe 11, one end of the branch pipe is connected with the tail pipe 18 provided with the oxygen sensor 16, the other end of the branch pipe is sequentially and fixedly connected with the EGR cooler 12 and the EGR metering and supplying unit 10 through pipelines, the other end of the EGR metering and supplying unit 10 is communicated with the EGR mixer 8, the throttle front temperature pressure sensor 21 is arranged on the inner wall of the intercooling pipeline 19, the precombustion chamber gas pipeline 7 is internally provided with the precombustion chamber check valve gas supply pressure temperature sensor 22, the intake pipe temperature pressure sensor 23 is arranged on the inner wall of the intake manifold 9, the camshaft phase sensor 24 is respectively and electrically connected with the spark plug 5 and the engine, one of two intake ends of the air-gas mixer 14 is fixedly connected with the gas supply metering valve 13, the precombustion chamber 4 is communicated with the engine, the precombustor 4 is internally provided with a precombustor injection valve, the precombustor injection valve is electrically connected with a precombustor one-way valve air supply pressure temperature sensor 22 and is communicated with a precombustor switch one-way valve 6, a throttle front temperature pressure sensor 21 and an air inlet pipe temperature pressure sensor 23 are respectively electrically connected with an electronic throttle valve 20, an engine is respectively electrically connected with the electronic throttle valve 20 and the precombustor switch one-way valve 6, and the precombustor one-way valve air supply pressure temperature sensor 22 is electrically connected with the precombustor switch one-way valve 6 and the precombustor 4.
A control method of a hydrogen fuel engine, which uses a hydrogen fuel engine, comprises the following steps: the opening degree of the electronic throttle valve and the injection pulse width of the injection valve of the precombustor are controlled together by the power requirement of the engine, the rotating speed requirement of the engine and the injection quantity ratio of the precombustor;
the opening of the electronic throttle valve is also controlled by the pressure temperature of the air inlet pipe fed back by the air inlet pipe temperature pressure sensor 23, the engine speed requirement and the engine power requirement jointly control the fuel gas supply quantity of the fuel gas supply metering valve 13, and the control of the fuel gas supply quantity is also controlled by the reading fed back by the oxygen sensor 16;
the prechamber injection valve is also controlled by the prechamber check valve air supply pressure temperature fed back by the prechamber check valve air supply pressure temperature sensor 22.
Note that the main combustion chamber intake air amount is calculated by the pre-throttle temperature pressure sensor 21, the intake pipe temperature pressure sensor 23;
the precombustor check valve air supply pressure and temperature sensor 22 senses the precombustor check valve air supply temperature and pressure to assist the precombustor switch check valve 6 to calculate the air inflow passing through the precombustor switch check valve 6;
calculating an EGR flow rate by the EGR dosing unit 10;
the crank angle of the engine is determined by the camshaft phase sensor 24, and the ignition timing and the pre-chamber injection timing are determined.
Note that the air-fuel ratios of the prechamber and the main combustion chamber are controlled by the gas supply metering valve 13, and the electronic throttle opening degree and the prechamber injection valve injection pulse width are controlled by the prechamber injection quantity.
It should be noted that the system can be applied to the gas engine industry, and can ensure that the economical efficiency of each natural gas engine is obviously improved on the premise of meeting the discharge standard of China six and above, thereby having huge social and economic benefits.
The system can be applied to the hydrogen engine industry, and the EGR rate can be greatly improved through the design, so that the problem that the hydrogen engine is easy to knock is solved, and the engine is produced.
It should be noted that the gas is mixed with air from the air-gas mixer 14, and the mixed gas is split into two paths after passing through the intercooler 17: one path of the air is mixed with cooled metering EGR at an EGR mixer 8 through an electronic throttle valve 20, and finally enters an engine cylinder for combustion; the other path of the gas passes through the filter 1, the electric compressor 2 and the pressure stabilizer 3, then passes through the precombustor switch check valve 6, enters the precombustor 4 and is ignited by the spark plug 5 at a proper moment.
It should be noted that the gas entering the prechamber 4 is actually a Lambda-near-1 non-EGR mixed gas mixed at the air-gas mixer 14. This makes it easier for the gas inside the prechamber 4 to be ignited; the electric compressor 2, the voltage stabilizer 3 and the precombustor switch check valve 6 enable the flow of the gas entering the precombustor 4 to be stable and controllable; the electric compressor 2 and the pressure stabilizer 3 increase the gas pressure, so that compared with a one-way valve which enters the precombustion chamber 4 by self-suction negative pressure, the air inlet amount is more, and the scavenging is more sufficient. Because the Lambda is used to exhaust the exhaust gas in the precombustion chamber 4 near 1, the Lambda problem in the precombustion chamber 4 is not influenced, namely the problem that the spark plug 5 cannot ignite due to over-concentration and over-rarefaction of the fuel gas is not caused, and the ignition in the precombustion chamber 4 is not influenced by improving the EGR rate at the EGR mixer 8, the EGR rate can be improved by adopting the air inlet pipeline arrangement, and the advantages of low exhaust temperature, improvement of economic direction (thermal efficiency of an engine) and knocking resistance are realized.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (1)

1. The utility model provides a hydrogen fuel engine, includes air gas blender (14) and camshaft phase sensor (24) that are provided with two inlet ends and an outlet end, its characterized in that, the outlet end of air gas blender (14) is through pipeline (15) fixedly connected with intercooler (17) after the pressure boost, intercooler (17) other end fixedly connected with intercooler back pipeline (19), intercooler back pipeline (19) other end is provided with two outlet ducts, and one of them the outlet duct is connected with filter (1), electric compressor (2) and steady voltage ware (3) in proper order through the pipeline and passes through, and prechamber gas pipeline (7) are connected with prechamber switch check valve (6), prechamber switch check valve (6) are through pipeline and prechamber (4) that have installed spark plug (5), and another outlet duct is through pipeline fixedly connected with electronic throttle (20) and EGR blender (8) in proper order, EGR blender (8) other end fixedly connected with air intake manifold (9), the other end all is connected with the engine, engine outlet end fixedly connected with blast pipe (11), tailpipe (16) have been installed with exhaust pipe (16) and one end sensor is connected with exhaust branch pipe (18), the other end of the branch pipe is sequentially and fixedly connected with an EGR cooler (12) and an EGR metering and supplying unit (10) through pipelines, the other end of the EGR metering and supplying unit (10) is communicated with an EGR mixer (8), a throttle front temperature pressure sensor (21) is arranged on the inner wall of a post-intercooling pipeline (19), a pre-combustion chamber one-way valve air supply pressure temperature sensor (22) is arranged on the inner wall of a pre-combustion chamber gas pipeline (7), an air inlet pipe temperature pressure sensor (23) is arranged on the inner wall of an air inlet manifold (9), a camshaft phase sensor (24) is respectively and electrically connected with a spark plug (5) and an engine, one of two air inlet ends of the air-fuel mixer (14) is fixedly connected with a gas supply metering valve (13), and the pre-combustion chamber (4) is communicated with the engine;
the throttle front temperature pressure sensor (21) and the air inlet pipe temperature pressure sensor (23) are respectively and electrically connected with the electronic throttle valve (20); the engine is respectively and electrically connected with the electronic throttle valve (20) and the precombustor switch check valve (6); the precombustor check valve air supply pressure temperature sensor (22) is electrically connected with the precombustor switch check valve (6) and the precombustor (4); a precombustion chamber injection valve is arranged in the precombustion chamber (4), and the precombustion chamber injection valve is electrically connected with a precombustion chamber one-way valve air supply pressure and temperature sensor (22) and is communicated with a precombustion chamber switch one-way valve (6);
the opening degree of the electronic throttle valve and the injection pulse width of the injection valve of the precombustor are controlled together by the power requirement of the engine, the rotating speed requirement of the engine and the injection quantity ratio of the precombustor; the opening of the electronic throttle valve is also controlled by the pressure temperature of the air inlet pipe fed back by the air inlet pipe temperature pressure sensor (23);
the engine speed requirement and the engine power requirement jointly control the fuel gas supply quantity of a fuel gas supply metering valve (13); the control of the fuel gas supply is also controlled by the reading fed back by an oxygen sensor (16); the precombustor injection valve is also controlled by precombustor check valve air supply pressure and temperature fed back by a precombustor check valve air supply pressure and temperature sensor (22).
CN202210536181.4A 2022-05-18 2022-05-18 Hydrogen fuel engine and control method thereof Active CN114658571B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210536181.4A CN114658571B (en) 2022-05-18 2022-05-18 Hydrogen fuel engine and control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210536181.4A CN114658571B (en) 2022-05-18 2022-05-18 Hydrogen fuel engine and control method thereof

Publications (2)

Publication Number Publication Date
CN114658571A CN114658571A (en) 2022-06-24
CN114658571B true CN114658571B (en) 2023-05-23

Family

ID=82037477

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210536181.4A Active CN114658571B (en) 2022-05-18 2022-05-18 Hydrogen fuel engine and control method thereof

Country Status (1)

Country Link
CN (1) CN114658571B (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1517799A (en) * 1975-10-09 1978-07-12 Nissan Motor Burning rate control in hydrogen fuel combustor
JPS62103443A (en) * 1985-10-31 1987-05-13 Mitsubishi Motors Corp Air-fuel ratio controller for engine
JP2006170212A (en) * 2006-01-11 2006-06-29 Yanmar Co Ltd Control method for auxiliary chamber type gas engine
US7281531B1 (en) * 2006-10-18 2007-10-16 Brehon Energy Plc System and method of stoichiometric combustion for hydrogen fueled internal combustion engines
JP2010038012A (en) * 2008-08-04 2010-02-18 Honda Motor Co Ltd Device for controlling internal combustion engine
JP2016217262A (en) * 2015-05-21 2016-12-22 トヨタ自動車株式会社 Internal combustion engine control device
CN108180071A (en) * 2018-01-31 2018-06-19 青岛科技大学 A kind of gas handling system suitable for Incylinder direct injection hydrogen internal combustion engine
CN111156078A (en) * 2020-01-03 2020-05-15 北京工业大学 Two-stroke hydrogen-oxygen fuel rotor machine and control strategy thereof
CN113217180A (en) * 2021-05-10 2021-08-06 河南柴油机重工有限责任公司 Low-emission high-speed high-power marine gas engine system and control method
CN216142827U (en) * 2021-08-16 2022-03-29 四川中能西控低碳动力装备有限公司 Equivalent combustion engine air flue structure

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201390298Y (en) * 2009-04-22 2010-01-27 重庆恒通客车有限公司 Compression-ignition natural gas generator environment-friendly passenger car discharging on nation III and above nation III
CN102022177A (en) * 2010-10-10 2011-04-20 梁天宇 Engine
FR2986564B1 (en) * 2012-02-06 2014-02-28 Vianney Rabhi SPARK IGNITION DEVICE AND HIGH PRESSURE STRATIFICATION FOR INTERNAL COMBUSTION ENGINE
CN104121115B (en) * 2014-07-23 2016-04-13 山东大学 Automatically controlled servo pressure-regulating formula natural gas engine auxiliary fuel supply-system and controlling method
CN204113450U (en) * 2014-09-15 2015-01-21 江西五十铃发动机有限公司 The pre-heated water gas energy-saving engine of a kind of pre-burning
CN104595021B (en) * 2015-01-15 2016-01-27 山东大学 Based on lean burn natural gas engine combustion system and the controlling method of annular electrode
CN106050405A (en) * 2015-11-02 2016-10-26 合肥宝发动力技术有限公司 Multi-point sequential injection electronic control spark ignition type large discharge capacity natural gas engine for forklift
CN106948932A (en) * 2016-01-06 2017-07-14 普创新能源动力科技有限公司 Non- natural gas used for automobile generating set
CN106948933A (en) * 2016-01-06 2017-07-14 普创新能源动力科技有限公司 Non- natural gas used for automobile generating set
CN207554189U (en) * 2017-08-01 2018-06-29 江西五十铃发动机有限公司 A kind of dual fuel engine of mixed firinor fuel burning
CN108644034B (en) * 2018-05-18 2019-08-09 山东大学 High-power lean burn natural gas engine combustion system and method based on ozone to support combustion
CN109723537B (en) * 2019-01-09 2022-05-06 陕西柴油机重工有限公司 Low-calorific-value gas efficient pressurizing injection rarefied combustion comprehensive control system and method
CN109798194B (en) * 2019-02-25 2023-12-29 潍柴西港新能源动力有限公司 Air leakage detection device and detection method for air inlet pipe and air outlet pipe of low-pressure gas generator set
CN109899168A (en) * 2019-03-20 2019-06-18 中山市蓝水能源科技发展有限公司 A kind of binodal air valve engine control system applied to generating set
CN110056440B (en) * 2019-04-09 2024-04-12 潍柴西港新能源动力有限公司 High-efficiency transient response device of low-pressure gas generator set and response control method thereof
CN110067637A (en) * 2019-05-31 2019-07-30 山东中拓新能源有限公司 The air supply system of gas engine pre-burning component, the cylinder containing the component and cylinder
CN110230538A (en) * 2019-06-29 2019-09-13 山东中拓新能源有限公司 A kind of diesel oil ignited unit and its progress control method
CN112576418A (en) * 2019-09-29 2021-03-30 广州汽车集团股份有限公司 Engine system with EGR cylinder and engine control method
CN112855358A (en) * 2021-01-15 2021-05-28 中科广能能源研究院(重庆)有限公司 Special gas engine control system for gas heat pump
CN113982739B (en) * 2021-11-18 2022-09-20 山东大学 Turbulent jet ignition system, gas supply system and method for large-cylinder-diameter gas engine

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1517799A (en) * 1975-10-09 1978-07-12 Nissan Motor Burning rate control in hydrogen fuel combustor
JPS62103443A (en) * 1985-10-31 1987-05-13 Mitsubishi Motors Corp Air-fuel ratio controller for engine
JP2006170212A (en) * 2006-01-11 2006-06-29 Yanmar Co Ltd Control method for auxiliary chamber type gas engine
US7281531B1 (en) * 2006-10-18 2007-10-16 Brehon Energy Plc System and method of stoichiometric combustion for hydrogen fueled internal combustion engines
JP2010038012A (en) * 2008-08-04 2010-02-18 Honda Motor Co Ltd Device for controlling internal combustion engine
JP2016217262A (en) * 2015-05-21 2016-12-22 トヨタ自動車株式会社 Internal combustion engine control device
CN108180071A (en) * 2018-01-31 2018-06-19 青岛科技大学 A kind of gas handling system suitable for Incylinder direct injection hydrogen internal combustion engine
CN111156078A (en) * 2020-01-03 2020-05-15 北京工业大学 Two-stroke hydrogen-oxygen fuel rotor machine and control strategy thereof
CN113217180A (en) * 2021-05-10 2021-08-06 河南柴油机重工有限责任公司 Low-emission high-speed high-power marine gas engine system and control method
CN216142827U (en) * 2021-08-16 2022-03-29 四川中能西控低碳动力装备有限公司 Equivalent combustion engine air flue structure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
氢燃料直喷压燃发动机的有效热效率潜力研究;付瑞;汽车工程学报;全文 *

Also Published As

Publication number Publication date
CN114658571A (en) 2022-06-24

Similar Documents

Publication Publication Date Title
JP6907157B2 (en) Internal combustion engine that is internally cooled and its method
CN109538347B (en) Control method capable of realizing efficient clean compression ignition of gasoline in full working condition range
CN216142827U (en) Equivalent combustion engine air flue structure
US10174703B2 (en) Combined homogeneous compression ignition and diffused compression ignition combustion control method for low-octane-value gasoline
CN111472891A (en) Diesel ignition natural gas engine combustion system and control method thereof
CN103573480A (en) Pure oxygen engine and combustion control method for pure oxygen engine
CN113217180A (en) Low-emission high-speed high-power marine gas engine system and control method
CN111305977A (en) Hydrogen natural gas full-proportion variable dual-fuel engine
CN110318892A (en) A kind of ethanol vapor/Diesel Dual-Fuel Engine Multi-mode combustion method for organizing
Patil et al. Development of HCNG blended fuel engine with control of NOx emissions
CN109707505B (en) Zero-nitrogen engine based on water injection control pressure rise rate oxygen closed cycle and control method thereof
CN209398491U (en) A kind of control system that can effectively expand gasoline compression ignition high-efficiency cleaning range of operation
CN110778404A (en) Direct-injection gasoline-natural gas dual-fuel engine control system and control method
CN111237066B (en) Device and method for reducing heat load of natural gas engine by doping alcohol
CN111456845B (en) Clean zero-carbon-emission spark ignition type internal combustion engine and control method thereof
CN114658571B (en) Hydrogen fuel engine and control method thereof
CN116906206A (en) Fuel supply and control system of hydrogen engine
CN214997915U (en) Hydrogen ethanol engine for range extender
CN112576418A (en) Engine system with EGR cylinder and engine control method
CN201262123Y (en) High compression ratio spark-ignition type engine
CN215804809U (en) Low-emission high-speed high-power marine gas engine system
CN114060153B (en) Fuel supply system and control method of dual-fuel engine
CN109681318A (en) Using oxygen as the zero nitrogen rotor machine of HC fuel spark ignition type and its control method of oxidant
CN203532106U (en) Pure oxygen engine
CN210033646U (en) Double-throttle engine control system applied to generator set

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant