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Fuel mixing system for preventing knocking of hydrogen internal combustion engine

A fuel mixing, internal combustion engine technology, applied in the charging system, internal combustion piston engine, combustion engine and other directions, can solve the problem of engine knocking and combustion, and achieve the effect of avoiding knocking phenomenon and improving resource utilization.

Pending Publication Date: 2021-04-16
山东普利达新能源科技有限公司
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Problems solved by technology

However, the combustion and diffusion speed of hydrogen is too fast, and the probability of knocking combustion is much greater than that of gasoline. The knocking problem is one of the most important factors to be considered in the design of hydrogen fueled engines. The speed is fast, so it is very easy to cause knocking combustion of the engine, which is one of the main problems encountered in the development of hydrogen-burning engines

Method used

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  • Fuel mixing system for preventing knocking of hydrogen internal combustion engine
  • Fuel mixing system for preventing knocking of hydrogen internal combustion engine
  • Fuel mixing system for preventing knocking of hydrogen internal combustion engine

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Embodiment Construction

[0022] The present invention is specifically described below in conjunction with accompanying drawing, as Figure 1-3 As shown, to achieve the above object, the technical solution of the present invention is a fuel mixing system for preventing hydrogen internal combustion engine knocking, including cylinder 1, hydrogen intake system, EGR exhaust gas recirculation system and ECU control system 4, hydrogen intake System and EGR exhaust gas recirculation system are connected with ECU control system;

[0023] The hydrogen gas intake system includes a hydrogen gas rail 201 for distributing the amount of hydrogen gas intake. The hydrogen gas gas rail 201 is connected with a hydrogen gas injection pipe 202. The hydrogen gas gas injection pipe 202 is connected with the air inlet of the cylinder. The hydrogen gas gas rail 201 is connected with a hydrogen gas injection valve 203. The hydrogen injection valve is connected to the ECU control system to control the intake of hydrogen. The s...

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Abstract

The invention discloses a fuel mixing system for preventing knocking of a hydrogen internal combustion engine. The fuel mixing system comprises an air cylinder, a hydrogen intake system, an EGR system and an ECU control system. The hydrogen intake system comprises a hydrogen rail for distributing the hydrogen intake quantity, the hydrogen rail is connected with a hydrogen injection pipe, the hydrogen injection pipe is connected with a gas inlet of the air cylinder, and a hydrogen injection valve is connected to the hydrogen rail. The EGR system comprises an exhaust gas circulation pipeline, an EGR cooler and an EGR electric control valve, the EGR cooler is arranged in the middle of the exhaust gas circulation pipeline, the EGR electric control valve is arranged at the portion, entering the gas inlet of the air cylinder, of the exhaust gas circulation pipeline, and the EGR cooler and the EGR electric control valve are connected with the ECU control system. As exhaust gas in the EGR system is circulated into the air cylinder, inert gas in the air cylinder is increased, the combustion speed of hydrogen is reduced, the knocking phenomenon is effectively avoided, and meanwhile NOX in tail gas and CO generated by combustion of a small amount of engine oil can be removed.

Description

technical field [0001] The invention relates to the technical field of hydrogen internal combustion engines, in particular to a fuel mixing system for preventing knocking of hydrogen internal combustion engines. Background technique [0002] With the rapid development of economy and society, harmful emissions from vehicles have caused serious harm to the environment. Hydrogen is a renewable energy source. As an alternative fuel for vehicle engines, the only harmful gas emitted is NO. However, the combustion and diffusion speed of hydrogen is too fast, and the probability of knocking combustion is much greater than that of gasoline. The knocking problem is one of the most important factors to be considered in the design of hydrogen fueled engines. The speed is fast, so it is very easy to cause knocking combustion of the engine, which is one of the main problems encountered in the development of hydrogen-burning engines. 1 Ignition engine knock and knock model Engine knock i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M21/02F02M26/16F02M26/28F02M26/32F02D41/00F02D41/14F02D43/00
CPCY02T10/30Y02T10/40
Inventor 王兰红马兵
Owner 山东普利达新能源科技有限公司
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