Ammonia gas internal combustion engine and control method thereof

A control method and internal combustion engine technology, applied in electrical control, engine control, fuel injection control, etc., can solve the problems of low reactivity and the difficulty of carrying a large amount of hydrogen on the vehicle, so as to improve reactivity, realize stable operation, and avoid carrying difficulties Effect

Pending Publication Date: 2022-06-03
BEIJING UNIV OF TECH
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Problems solved by technology

[0004] The problem with ammonia as a fuel for internal combustion engines is its low reactivity, so it often appears in the field of internal combustion engines in the form of co-combustion with hydrogen. However, this will again face the problem that hydrogen is difficult to carry in large quantities in vehicles

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  • Ammonia gas internal combustion engine and control method thereof

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[0037] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0038] An ammonia gas internal combustion engine comprises: an air intake pipeline (P1) is serially connected in sequence: an air filter (1), an intake pressure sensor (2), an intake temperature sensor (3), and an intake flow sensor (4) ; The exhaust pipeline (P2) is connected in series with: an exhaust flow sensor (11), an exhaust temperature sensor (12); the first ammonia supply pipeline (P3) is connected in series with an ammonia tank (13), The first ammonia gas pipeline pressure reducing valve (14), the first ammonia gas volume flow controller (15), the first ammonia gas filter (16); the cracked ammonia gas supply pipeline (P4) is serially connected in sequence: ammonia gas A gas cracking reactor (17), an electric heating device (18), and a cracking ammonia gas nozzle (6); an ammonia gas tank (13) and a second ammonia gas pi...

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Abstract

The invention discloses an ammonia gas internal combustion engine and a control method thereof, belongs to the field of internal combustion engines, provides an internal combustion engine device without carbon emission, and adopts a main strategy of taking ammonia gas as fuel in consideration of the problem that hydrogen is difficult to store and transport. Waste gas generated by the internal combustion engine is introduced into the ammonia gas cracking device, partial cracking of ammonia gas is achieved, the reaction activity of gas in a cylinder is improved through hydrogen generated by ammonia gas cracking, and stable operation of the whole internal combustion engine can be achieved. The used hydrogen is only used for starting the internal combustion engine, the use amount is small, and the problem that the hydrogen is difficult to carry can be avoided. Fuel supply strategies are selected according to working conditions, and therefore efficient operation of the ammonia gas internal combustion engine is achieved. The designed ammonia gas internal combustion engine is started with pure hydrogen, and pure ammonia serves as the only fuel to be supplied to the internal combustion engine after starting.

Description

technical field [0001] The invention provides an ammonia gas internal combustion engine system and a control method thereof, in particular to the design of an internal combustion engine fuel supply system using ammonia gas as a fuel and a corresponding control method, belonging to the field of internal combustion engines. Background technique [0002] Energy and the environment are the key issues that people are currently concerned about. The greenhouse effect causes environmental problems such as global warming and sea level rise, and carbon dioxide is the largest contributor to the greenhouse effect. How to reduce carbon emissions is a huge problem currently facing. The automobile industry is one of the main sources of carbon emissions. Traditional vehicles mainly use gasoline and diesel as fuel for combustion, which will cause a lot of carbon emissions. Therefore, the transformation of vehicle energy should be pursued and reasonable alternative fuels should be sought. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B43/12F02D41/00
CPCF02B43/12F02D41/0027F02B2201/066Y02T10/12
Inventor 纪常伟王喆洪琛汪硕峰杨金鑫杨振宇
Owner BEIJING UNIV OF TECH
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