[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.7842/kigas.2021.25.2.22

Study for Failure Examples Involved to Spark Plug Assembling Part Damage, Timing Maladjustment and Alien Substance Insertion in Intake Valve Part on LPG Vehicle Engine

Lee, IL Kwon (Division of Automotive Engineering, Daelim University College)
Kook, Chang Ho (Division of Automotive Engineering, Daelim University College)
Ham, Sung Hoon (Division of Automotive Engineering, Daelim University College)
Kim, Sung Mo (Faculty of Aviation, Automobile & Mechanical Engineering, Chungcheong University)
Hwang, Han Sub (Dept. of Mechanical Engineering, Suwon Science College)
Jung, Dong Hwa (Dept. of Machinery and Automotive Engineering, Suncheon First College)
Moon, Hak Hoon (Dept. of Automotive Engineering, Osan University)
Lee, Jeong Ho (Graduate School of Mechanical Engineering, Inha University)

Publication Information

Journal of the Korean Institute of Gas / v.25, no.2, 2021 , pp. 22-27 More about this Journal

Abstract

This paper is a purpose to study the failure examples for LPG vehicle. The first example, the researcher certified the incongruity phenomenon decreased engine power by ignition fire leakage because of spark plug threaded part damage assembling in cylinder head. The second example, the timing mark that accurately adjusting the camshaft and crankshaft position were twisted about 0.5 block each other. Finally, the researcher seeked the disharmony phenomenon as it couldn't set ignition timing. The third example, the researcher knew the failure phenomenon by interrupted the closing period for intake valve moving with air flow in the number 3 port of cylinder head as the foreign substance in cylinder head didn't remove. Therefore, the manager of a car has to thorough going inspect and the manufacture of a car must remove the cause of failure with quality assurance.

Keywords

failure; LPG engine; spark plug; ignition timing; cylinder head;

Citations & Related Records

Reference

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