吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (03): 635-639.

• paper • Previous Articles     Next Articles

Optimal matching of supercharging lean burn LPG engine

QU Da-wei,LI Jun,GAO Ying,SONG Chang-qing,FAN Lu-yan   

  1. State Key Laboratory of Automobile Dynamic Simulation,Jilin University,Changchun 130022,China
  • Received:2010-02-01 Online:2011-05-01 Published:2011-05-01

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Abstract:

The efficiency of a supercharging lean burn liquefied petroleum gas(LPG) engine was improved by optimizing the compression ratio and the valve timing,and its fuel consumption,the exhaust emissions,and the exhaust gas temperature were reduced.A whole engine model was set up using one-dimensional simulation software.The optimal compression ratio was found by comparing the simulation computed results and bench test results under different compression ratios.The exhaust advance angle and valve overlap angle were optimized by the successive optimization method and verified by tests.

Key words: power machinery and engineering, liquefied petroleum gas(LPG) engine, one-dimensional simulation, optimal matching

CLC Number: 

  • TK464
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