Study on the Dynamic Characteristics of Exhaust Valve Forced Opening Mechanism

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Study on the Dynamic Characteristics of Exhaust Valve Forced Opening Mechanism

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[1]ZHANG Zhi-feng,ZHOU Li,YANG Jian-hui.Study on the Dynamic Characteristics of Exhaust Valve Forced Opening Mechanism[J].Journal of Zhengzhou University (Engineering Science),2013,34(02):108-111,124.[doi:10.3969/j. issn.1671 -6833.2013.02.027]

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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 34 Number of periods: 2013 02 Page number: 108-111,124 Column: Public date: 2013-03-28

Title:: Study on the Dynamic Characteristics of Exhaust Valve Forced Opening Mechanism

Author(s):: ZHANG Zhi-feng; ZHOU Li; YANG Jian-hui; 1.Chang’an University Key Laboratory for Highway Construction Technology and Equipment of Ministry of Education， Chang’an University ，Xi ’ an 710064, China; 2.Zoomlion Heavy Industry Science and Technology Co., Ld. , Changsha 410000,Chi-na

Keywords:: automotive engineering; exhaust valve; opening mechanism; valve timing mechanism

CLC:: TN911.22

DOI:: 10.3969/j. issn.1671 -6833.2013.02.027

Abstract:: The dynamic characteristics of exhaust valve forced opening mechanism affect the engine light loadfuel-efficient valve timing mechanism’s working performance and reliability directly. The paper builds thevalve timing mechanism multi-body kinetics model in Adams,and analyzes the dynamic characteristics of ex-haust valve forced opening mechanism through simulation.The analysis results of simulation show that theforced opening force of exhaust valve is about 518.7 N,which is approximate to the test value 556 N,and thepiston rod can enter into the groove smoothly nearby the maximum opening stroke of exhaust valve and open theexhaust valve forcedly.

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