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Study on the Spray Characteristics of a Port Fuel Injector for a Gasoline Engine  

Lee, Sang-In (공주대학교 일반대학원 기계공학과)
Lee, Sung-Won (공주대학교 일반대학원 기계공학과)
Park, Sung-Young (공주대학교 생산기술연구소)
Publication Information
Journal of ILASS-Korea / v.15, no.2, 2010 , pp. 61-66 More about this Journal
Abstract
Fuel spray characteristics of the gasoline engine injector has been studied experimentally. To provide fundamental performance data of 4-hole and 12-hole injectors, spray fuel-mass distribution, wall wetting fuel amount and visualization of injectors have been tested and measured with various fuel supply pressure conditions. Spray visualization has been performed to analyze spray formation, spray angle, stream width and penetration length. Test result shows that wall wetting is greatly influenced by the induction air amount and spray atomization. Spray visualization shows that the 12-hole injector has robust performance characteristics with various fuel supply pressure conditions compared with the 4-hole injector. 4-hole injector generates relatively less wall-wetting fuel amount than 12-hole injector does.
Keywords
Gasoline injection; Spray angle; Spray characteristics; Wall wetting;
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  • Reference
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