Methanol fuel engine and start control method thereof

A methanol fuel and engine technology, which is applied in engine control, engine start, fuel injection control, etc. It can solve the problems that methanol is difficult to burn normally, affects the working conditions of methanol fuel engines, and the engine is difficult to start, etc., and achieves good cold start function, good low temperature cold start effect

Active Publication Date: 2021-03-26
CHANGAN UNIV
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  • Claims
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Problems solved by technology

Once the gas temperature in the methanol engine cylinder is lower than 15°C, it is difficult for methanol to burn normally, which affects the good starting performance of the methanol engine at low temperature and seriously affects the working conditions of the methanol fuel engine.
Therefore, in low temperature environment, the engine is difficult to start, which seriously affects the working conditions of the methanol fuel engine

Method used

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  • Methanol fuel engine and start control method thereof
  • Methanol fuel engine and start control method thereof
  • Methanol fuel engine and start control method thereof

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Embodiment Construction

[0027] In order to make the above objects, features and advantages of the present invention more comprehensible, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways than those described here, and those skilled in the art can make similar extensions without departing from the connotation of the present invention. Accordingly, the present invention is not limited to the specific embodiments disclosed below.

[0029] A methanol fuel engine, comprising an intake manifold 1, an exhaust manifold 2, and a plurality of cylinders 3; one side of each cylinder 3 communicates with the intake manifold 1 through an intake manifold 4, and each cylinder 3 The other side of the exhaust manifold 2 c...

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Abstract

The invention discloses a methanol fuel engine and a start control method thereof. The methanol fuel engine comprises an air inlet main pipe, an exhaust main pipe and a plurality of air cylinders. Oneside of each air cylinder is communicated with the inlet main pipe through an inlet manifold, and the other side of each air cylinder is communicated with the exhaust main pipe through an exhaust manifold; a first electric control three-way switching valve is arranged on the air inlet main pipe, the first electric control three-way switching valve comprises an inlet A, an outlet B and an outlet C, and the inlet A and the outlet B are connected to the air inlet main pipe in series; a second electric control three-way switching valve is arranged on the exhaust main pipe, the second electric control three-way switching valve comprises an inlet D, an outlet E and an outlet F, and the inlet D and the outlet E are connected to the exhaust main pipe in series; and a lap joint pipe is connected between the outlet C and the outlet F. The methanol fuel engine disclosed by the invention has the characteristics that 1, a good cold start effect of the methanol fuel engine is realized without usingadditional equipment; and 2, a cold start mode is automatically judged, and full-closed circulating cold start is started.

Description

technical field [0001] The invention relates to the field of engines, in particular to a methanol fuel engine and a starting control method thereof. Background technique [0002] Methanol fuel is increasingly used in automobiles. Once the gas temperature in the methanol engine cylinder is lower than 15°C, it is difficult for methanol to burn normally, which affects the good starting performance of the methanol engine at low temperature and seriously affects the working conditions of the methanol fuel engine. Therefore, in a low temperature environment, the engine is difficult to start, which seriously affects the working conditions of the methanol fuel engine. [0003] How to solve the problem of difficult starting of methanol fueled engines at low temperature is a technical problem urgently needed by those skilled in the art. Contents of the invention [0004] In order to solve the above technical problems, the main purpose of the present invention is to provide a metha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N11/00F02N11/10F02D41/30
CPCF02N11/00F02N11/10F02N11/108F02D41/30Y02T10/30
Inventor 刘生全李复活曹丽娜李维
Owner CHANGAN UNIV
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