포트분사식 이륜차 엔진의 연료 분사시기에 따른 연료 증발 특성Fuel Evaporation Characteristics of a Port Injection Type Motorcycle Engine with Changing Fuel Spray Timing
- Other Titles
- Fuel Evaporation Characteristics of a Port Injection Type Motorcycle Engine with Changing Fuel Spray Timing
- Authors
- 이기형; 강인보; 김형민; 백승국
- Issue Date
- Dec-2005
- Publisher
- 대한기계학회
- Keywords
- 이륜자동차; 연료증발; 당량비; 흡기관연료분사; Motorcycle; Fuel Evaporation; Equivalence Ratio; Port Fuel Injection; Motorcycle; Fuel Evaporation; Equivalence Ratio; Port Fuel Injection
- Citation
- 대한기계학회논문집 B, v.29, no.12, pp.1360 - 1368
- Indexed
- KCI
- Journal Title
- 대한기계학회논문집 B
- Volume
- 29
- Number
- 12
- Start Page
- 1360
- End Page
- 1368
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/46170
- ISSN
- 1226-4881
- Abstract
- This study investigates the characteristics of spray, such as evaporation rate and spray trajectory, for a 4-hole injector which is applied to a 4-valve motorcycle gasoline engine. Three dimensional, unsteady, compressible flow and spray within the intake-port and cylinder have been simulated using the VECTIS code. Spray characteristics were investigated at 6000 rpm engine speed. Furthermore, we visualized fuel behavior in the intake-port using a CCD camera synchronized with a stroboscope in order to compare with the analytical results. Boundary and intial conditions were employed by complete 1-D simulation of the engine using the WAVE code. Fuel was injected into the intake-port at two time intervals relative to the position of the intake valves so that the spray arrived when the valves were closed and fully open. The results showed that the trajectory of the spray was directed towards the lower wall of the port with injection against the closed valves. With open valve injection, a large portion of the fuel was lifted by the co-flowing air towards the upper half of the port and this was confirmed by simulation and visualization.
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Collections - COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF MECHANICAL ENGINEERING > 1. Journal Articles
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