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천연가스용 고압 인젝터의 Plunger valve 크기 변경에 따른 질량 유량 균일도에 관한 연구
윤태준(Taejun Yoon),김권세(Kwonse Kim),최문석(Munseok Choe),이홍윤(Hongyoon Lee),강도경(Dogyeong Kang),최두석(Dooseuk Choi) 한국자동차공학회 2017 한국자동차공학회 지부 학술대회 논문집 Vol.2017 No.6
Natural gas is in spotlight as an alternative energy source to deal with global exhaustion of resource and environmental pollution. There are many studies related to natural gas. Among them, technology of the fuel rail that maintains internal pressure 8 bar and above is under development. But, the internal flow of the injector becomes unstable because high pressure gas is getting into inlet of injector. Therefore, this study provided the design variables of the plunger valve to reduce the uneven flow rate of internal fluids. As a result, the size of the plunger valve decreases, a uniformity of the internal flow rate is reduced and the pulsation is also reduced however, internal resistance increases, bore size of plunger valve shall be appropriately sized.