밸브 오버랩 기간이 없는 흡기관 분사식 수소기관의 성능 및 역화특성 = Characteristics of Performance and Back-Fire for External Mixture Hydrogen Fueled Engine without Valve Overlap Period

다국어 초록 (Multilingual Abstract)

In order to verify the feasibility of expansion of back-fire limit equivalence ratio in the hydrogen-fueled engine with external mixture, the characteristics of performance and combustion are experimentally analyzed with change of intake/exhaust valve timings under the fixed valve overlap period of 0°CA(non-valve overlap period). These characteristics are also tested for the change of exhaust valve closing timing while intake valve opening timing is fixed to clear the main cause of back-fire occurrence. As the results, the less valve overlap period center is retarded, the more back-fire limit equivalence ratio increases and back-fire does not occurred after TDC. In addition, it was shown that the control of back-fire is dependent on intake valve opening timing than valve overlap period.

참고문헌 (Reference)

1 "흡기관 분사식 수소기관의 실용화를 위한 MCVVT 연구용 수소기관의 개발과 기본 특성" 17 (17): 255-262, 2006

2 "흡기관 분사식 수소기관의 밸브오버랩기간 변화에 대한 기관성능 및 연소특성 해석에 관한 연구" 1936-1941, 2007

3 "스파크 점화기관에서 밸브타이밍에 따른 잔류가스율 측정 및 잔류가스율이 연소특성에 미치는 영향에 관한 연구" 126-131, 2000

4 "수소기관의 역화발생에 미치는 crevice volume의 영향에 관한 연구" 11 : 646-651, 1996

5 "Study on Mechanism of Backfir in Hydrogen Engines" 1994.

6 "Performance characteristics of Hydrogen Fueled Engine with the Direct Injection and Spark Ignition System" 162-175, 1995

7 "Feasibility of Backfire Control and Engine Performance with Different Valve Overlap Period of Hydrogen-Fueled Engine with External Mixture" 18 (18): 67-74, 2007