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http://dx.doi.org/10.7842/kigas.2011.15.3.047

Study for Failure Examples of Solenoid Valve, Relay and Idle Speed Control Actuator in Liquid Petroleum Gas vehicle Engines  

Kim, Chung-Kyun (Research Center for Tribology, Mechatronics and Energy Technology, Hongik University)
Lee, Il-Kwon (Department of Automotive Engineering, Daelim University College)
Cho, Seung-Hyun (Department of Mechanical Engineering, Dongyang Mirae University)
Publication Information
Journal of the Korean Institute of Gas / v.15, no.3, 2011 , pp. 47-52 More about this Journal
Abstract
The purpose of this paper analyzes and studies to seek the failure examples of electronic control actuators for engine in liquified petroleum gas vehicle. The first, it was verified phenomenon for intial starting damage and no-acceleration of engine because of occasionally fuel feeding interception by clogged of emergency cutting solenoid valve filter. The second, the contact resistance produced in the connecting part of engine control relay because of no fully surface contacting by processes and assembly badness. It was displayed phenomenon of re-starting badness. The actuator that idle speed control system was sticked inside because of intake-air decreasing by carbon deposit. As a result, it was verified the phenomenon of disharmony that repeated up and down the engine revolution.
Keywords
actuator; solenoid valve; relay; idle speed controller; engine revolution;
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