DOI QR코드

DOI QR Code

Study for Failure Examples Including with Gas filter Clogging of Emergency Cutting Valve, Assemblying Part Damage of Solenoid Valve, Contact Damage of LPG Switch Connector Fin in a LPG Car

LPG 자동차의 긴급차단밸브 기상필터막힘, 솔레노이드밸브 조립부손상, LPG 스위치 커넥터 핀 접촉불량에 관련된 고장사례 연구

  • 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, Jee Hyun (Division of Automotive Engineering, Daelim University College) ;
  • Kim, Sung Mo (Faculty of Aviation, Automobile & Mechanical Engineering, Chungcheong University) ;
  • Jung, Dong Hwa (Dept. of Machinery and Automotive Engineering, Suncheon First College) ;
  • You, Chang Bae (Dept. of Automotive Engineering, Shin Sung University) ;
  • Moon, Hak Hoon (Dept. of Automotive Engineering, Osan University) ;
  • Lee, Jeong Ho (Graduate School of Mechanical Engineering, Inha University)
  • 이일권 (대림대학교 미래자동차학부) ;
  • 국창호 (대림대학교 미래자동차학부) ;
  • 함성훈 (대림대학교 미래자동차학부) ;
  • 김지현 (대림대학교 미래자동차학부) ;
  • 김성모 (충청대학교 항공자동차기계학부) ;
  • 정동화 (순천제일대학교 기계자동차과) ;
  • 유창배 (신성대학교 자동차계열) ;
  • 문학훈 (오산대학교 자동차과) ;
  • 이정호 (인하대학교대학원 기계공학과)
  • Received : 2021.09.23
  • Accepted : 2021.12.18
  • Published : 2022.02.28

Abstract

This paper is a purpose to study and analyze the engine starting failure examples for LPG car. The first example, the researcher verified the phenomenon that didn't supply the fuel because of filter clogging by fine alien substance in the gas valve line when he inspected the emergency cutting valve. The second example, there was no the influence of gas leakage when the solenoid operated at first. But the damage part of solenoid assemblying face wad downed a durability according to running a valve. Eventually, the researcher checked on the phenomenon of engine stopping by no gas feeding in solenoid because of leaking of gas. The third example, the researcher sought that the wiring sheaths of connector fin between EGR 10A fuse and LPG switch verified the burn-out phenomenon due to the bad contacting as tension damage produced the overheating. Therefore, the manager of a car has to do pre-inspection no producing electric failure and he must maintain his car with optimum condition.

이 논문은 LPG 자동차 엔진의 시동불량현상을 조사하고 분석한 연구이다. 첫 번째 사례는 긴급차단 밸브를 점검한 결과 밸브의 기상측에 미세한 이물질에 의해 필터 막힘으로 인해 연료공급이 안 되는 현상을 확인하였다. 두 번째 사례는 액·기상 솔레노이드 밸브의 초기 작동시 연료의 누설에 영향이 없었으나, 시간이 지나면서 솔레노이드 조립부의 손상부가 내구성이 떨어져 LPG 가스의 누설이 진행되어 연소실로 공급되는 연료의 공급이 제대로 되지 않아 자동차의 시동꺼짐 현상이 발생된 것을 확인하였다. 세 번째 사례는 EGR 10A 퓨즈와 LPG 스위치 사이의 커넥터 핀이 장력불량에 의한 접촉불량으로 과열이 발생되어 소손된 것을 확인하였다. 따라서, 자동차의 시동성에 대단히 예민한 전기적인 문제가 발생하지 않도록 자동차의 관련시스템을 사전에 철저하게 점검하고 이를 관리하여야 할 것으로 판단된다.

Keywords

References

  1. Chung Kyun Kim, Il Kwon Lee and Seung Hyun Cho," Study for Failure Examples of Solenoid Valve, Relay and Idle Speed Actuator in Liquid Petroleum Gas Vehicle Engine", KIGAS, 15(3), 47-52, (2011)
  2. Il Kwon Lee, Young Kyu Kim and Chang Ho Kook," Study for Failure Cases on Engine Electronic Control Computer in Liquid Petroleum Gas Vehicle", KIGAS, 15(6), 27-33, (2011)
  3. Il Kwon Lee, Seung Hyun Cho and Han Goo Kim,"Study for Failure Examples of Injector, Idle Speed Actuator and Gasket in LPi System Vehicle", KIGAS, 16(3), 48-53, (2012)
  4. Hyundai Motor company, "Service Manual-EF Sonata Taxi", (1998)
  5. Sierens, R., "An Experimental and Theoretical of Liquid LPG Injection", SAE Paper 922363, (1992)
  6. Saraf, R., Thipse, S., and Saxena, P., "Case Study on Endurance Test of LPG Automobile Engine", SAE paper 2008-01-2756, (2008)
  7. Sawut, U., Takigawa, B., Konagai, G., Yasukawa, H. et.al., "Modelling and Engine Speed Control of LPG Injection System", SAE paper 2008-01-1020, (2008)
  8. Lee I. K, et al., " Fault Diagnosis of Automotive", Sunhak, (2003)
  9. Maintenance Manual of Hyundai Motors, (2020)
  10. Maintenance Manual of Kia Motors, (2020)