Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2003.11a
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- Pages.472-477
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- 2003
A Study on the Fuel Behaivor with Cavity Diameter in a Gasoline Direct Injection Engine
직분식 가솔린 엔진에서 피스톤 캐비티 반경에 따른 연료 거동 분석
- Published : 2003.11.05
Abstract
This study was performed to investigate the behavior of vapor phase of fuel mixtures with different piston cavity diameters in a optically accessible engine. The images of vapor phases were measured in the motoring engine using exciplex fluorescence method. The conventional engine was modified as GDI engine with swirl flow. Fuel was injected into atmospheric nitrogen to prevent quenching phenomenon by oxygen. Injection pressure is 5.1MPa. Two dimensional spray fluorescence image of vapor phases was acquired to analyze spray behavior and fuel distribution inside of cylinder. Three injection timings were set at BTDC
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