Air inlet channel and direct injection composite hydrogen-doped gasoline fuel rotor machine and control method thereof

An air inlet and rotor engine technology, which is applied in the control field of hydrogen-doped gasoline fuel rotor engine, can solve the problems of increasing quenching effect, short quenching distance, and reducing charging efficiency, so as to overcome incomplete combustion and short quenching distance. , the effect of a wide combustion limit

Active Publication Date: 2020-11-27
BEIJING UNIV OF TECH
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  • Application Information

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Problems solved by technology

[0002] With its unique geometric design and movement mode, the rotary engine has many advantages compared with the piston engine, such as simple structure, small size, light weight, uniform torque, and stable operation. However, the special geometric structure of the rotary engine makes the cylinder memory In many narrow areas, the phenomenon of incomplete combustion is serious, which increases the quenching effect, resulting in high hydrocarbon emissions, and the problem of poor emission effects during high-speed and heavy-load operation is prominent
[0003] As a clean energy source, hydrogen has a short quenching distance and a wide combustion limit. It is very suitable for combustion in a rotor machine, and hydrogen does not contain carbon elements. As a blended fuel, it can effectively reduce the generation of HC and CO, but the intake air Injection of hydrogen will reduce the mass fraction of gasoline / air, resulting in a decrease in charging efficiency. Direct injection of hydrogen in the cylinder can solve the problem of hydrogen doping in the intake port, but direct injection of hydrogen will lead to problems such as excessive combustion, so the rotor Engines need a more reasonable hydrogen-doped combustion strategy

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  • Air inlet channel and direct injection composite hydrogen-doped gasoline fuel rotor machine and control method thereof

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and specific embodiment the present invention will be further described:

[0019] A hydrogen-doped gasoline fuel rotary machine with intake port and direct injection comprises: according to the control of ECU (E), in the intake pipeline (P1), the air passes through the air filter (1), the air flow regulator ( 2) Enter the intake port; in the gasoline injection branch (P5), gasoline passes through the fuel tank (16), gasoline filter (15), oil pump (14), gasoline flow regulator (13), gasoline nozzle (12) in sequence ) is directly injected into the combustion chamber; the hydrogen branches (P3) and (P4) are adjusted according to the different operating conditions through the ECU (E) signal to adjust the specific injection time and injection amount, and the hydrogen in the branch (P3) is injected into the inlet during injection The air passage is mixed with air, and the hydrogen in the branch (P4) is directly injected into the ...

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Abstract

The invention discloses an air inlet channel and direct injection composite hydrogen-doped gasoline fuel rotor machine and a control method thereof, belongs to the field of internal combustion engines, and particularly relates to a control method for adjusting the direct injection amount of hydrogen in a cylinder, the injection amount of hydrogen in an air inlet channel and the EGR rate accordingto rotating speed signals of a rotor engine. The device judges the running work condition of the rotor machine based on output signals of a rotor machine rotating speed sensor and reasonably regulatesand controls mixed gas components and excess air coefficients in combination with an air flow regulator (2), an EGR valve (3), hydrogen nozzles (4) and (8) and the like, a good dynamic property of the rotor machine is guaranteed under various work conditions, and emission of harmful substances in tail gas is effectively reduced. Compared with the prior art, the performance of the rotor engine isimproved through the hydrogen injection and EGR technology, meanwhile, emission pollution is effectively reduced, and certain innovativeness and application prospects are achieved.

Description

technical field [0001] The present invention designs a control method of a hydrogen-doped gasoline fuel rotary machine combined with intake port and direct injection, and specifically relates to a method of adjusting the amount of hydrogen direct injection in the cylinder, the amount of hydrogen injection in the intake port and the EGR rate according to the rotational speed signal of the rotor engine The control method belongs to the field of internal combustion engines. Background technique [0002] With its unique geometric design and movement mode, the rotary engine has many advantages compared with the piston engine, such as simple structure, small size, light weight, uniform torque, and stable operation. However, the special geometric structure of the rotary engine makes the cylinder memory In many narrow areas, the phenomenon of incomplete combustion is serious, which increases the quenching effect, resulting in high hydrocarbon emissions, and the problem of poor emiss...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F02B53/00F02B53/10F02B53/02F02B69/04F02M26/12F02D19/08F02D41/00F02D41/30
CPCF02B53/00F02B53/10F02B53/02F02B69/04F02M26/12F02D19/081F02D41/0025F02D41/005F02D41/3005F02D41/3094F02D2200/101Y02T10/12
Inventor纪常伟常珂汪硕峰杨金鑫孟昊
OwnerBEIJING UNIV OF TECH