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Compression-ignition methanol engine and control method thereof

A methanol engine and engine technology, applied in engine control, combustion engine, internal combustion piston engine, etc., can solve the problems of low cetane number of methanol fuel, difficulty in compression ignition, etc., and achieve the effect of improving thermal efficiency

Active Publication Date: 2010-06-02
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In summary, there are the following technical problems in the prior art: (1) the development trend of this field requires the generation of clean energy; (2) the existing methanol fuel has a low cetane number and is difficult to compress and ignite

Method used

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  • Compression-ignition methanol engine and control method thereof
  • Compression-ignition methanol engine and control method thereof

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Embodiment Construction

[0034] The present invention will be described in detail below according to the accompanying drawings, which is a preferred embodiment among various implementations of the present invention.

[0035] This embodiment discloses a compression-ignition methanol engine and a control method, including an engine body, an exhaust gas turbocharging system, an EGR system, a methanol fuel supply system, a DME catalytic synthesis system, an air intake heating system, and the like. The engine described in this embodiment mainly includes a DME catalytic synthesizer 1, a low-pressure methanol injector 2, a solenoid valve 3, a high-pressure methanol pump 4, a high-pressure stabilizing chamber 5, a methanol fuel tank 6, a low-pressure methanol pump 7, and an EGR intercooler 8 , ECU electronic control unit 9, air filter 10, turbocharger 11, intake heater 12, engine body 13, exhaust after-treatment device 14, intake manifold 15, exhaust manifold 16, high-pressure methanol injection Device 17, EG...

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PUM

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Abstract

The invention relates to a compression-ignition methanol engine and a control method thereof. The compression-ignition methanol engine comprises an engine main body, an EGR system, a methanol fuel supply system and a DME synthesis system, wherein the methanol fuel supply system is connected with the engine main body and used for directly supplying methanol fuel for the engine main body; the methanol fuel supply system is also connected with the DME synthesis system and used for supplying the methanol fuel for the DME synthesis system; the EGR system is connected with the DME synthesis system and used for supplying EGR gas for the DME synthesis system; the DME synthesis system is connected with the methanol fuel supply system and the EGR system and treats the methanol fuel and the EGR gas which are supplied by the two systems; and the DME synthesis system is connected with the engine main body and supplies mixed gas for the engine main body.

Description

technical field [0001] The invention relates to a novel alternative fuel engine, which is mainly applied to methanol fuel, can effectively improve the thermal efficiency of the methanol fuel engine, and reduce the emission of incomplete combustion products, etc., and specifically relates to a compression ignition methanol engine and a control method thereof. Background technique [0002] In the context of the depletion of petroleum resources, the development of various new clean alternative fuels has become the research focus of various countries. As far as my country's national conditions are concerned, abundant coal resources and mature production technology make methanol fuel the first choice to replace petroleum fuel in some provinces, cities and regions of our country, and methanol fuel vehicles have become quite popular in many areas. However, the currently sold and used methanol fuel vehicles are all spark ignition engines, and the thermal efficiency and power perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B69/02F02B37/00F02N19/04F02M31/16F02M31/20F02D19/02F02D41/30
CPCY02T10/32Y02T10/144Y02T10/12Y02T10/30Y02T10/40
Inventor 汤绪雯
Owner CHERY AUTOMOBILE CO LTD
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