지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2011.11
- 수록면
- 347 - 352 (6page)
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초록· 키워드
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High pressure fuel at about 20 MPa is injected into the engine cylinder. At a GDI system, it is a technology to reduce emission and to improve engine output and fuel efficiency at the same time. But, this system requires an additional high pressure fuel pump with a low-pressure fuel pump that is used to a PFI(Port Fuel Injection) engine. The purpose of this paper is to investigate the performance characteristics of the main valves of a high pressure fuel pump for GDI engine. The flow characteristics of inlet/outlet check valves and a relief valve of high pressure fuel pump were analyzed by CFD method. The flow rate of the inlet/outlet check valves are decided by the valve openings. Therefore the flow characteristics of the inlet/outlet check valves were analyzed according to the valve openings and inlet/outlet pressures. In case that high pressure abnormally occurs at the injector part, the relief valve begins to work. The bypass flow rate of the relief valve according to inlet and outlet conditions of the valves was analyzed.
목차
Abstract
1. 서론
2. 해석 대상 및 방법
3. 해석 결과
4. 결론
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References
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UCI(KEPA) : I410-ECN-0101-2013-556-001412706