분사압력 1800bar 실현을 위한 직접 니들구동방식 피에조 인젝터 설계 최적화 연구A Study on Optimal Design of Direct Needle-driven Piezo Injector for Accomplishing Injection Pressure of 1800 bar
- Other Titles
- A Study on Optimal Design of Direct Needle-driven Piezo Injector for Accomplishing Injection Pressure of 1800 bar
- Authors
- 한상익; 김주환; 지형순; 고준채; 김진수; 이진욱
- Issue Date
- Sep-2016
- Publisher
- 한국액체미립화학회
- Keywords
- Direct Needle-driven Piezo Injector(직접니들구동방식 피에조 인젝터); Injection Pressure(분사압력); Common-rail Direct Injection(커먼레일 직접분사)
- Citation
- 한국액체미립화 학회지, v.21, no.3, pp.121 - 129
- Journal Title
- 한국액체미립화 학회지
- Volume
- 21
- Number
- 3
- Start Page
- 121
- End Page
- 129
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/8172
- ISSN
- 1226-2277
- Abstract
- The advantages of the common rail fuel injection system architecture have been recognized since the development of the diesel engine. In common rail systems, a high-pressure pump stores a reservoir of fuel at high pressure up to and above 2000 bar. And solenoid or piezoelectric valves make possible fine electronic control over the fuel injection time and quantity, and the higher pressure that the common rail technology makes available provides better fuel atomization. In this study, the direct needle-driven piezo injector was investigated for accomplishing injection pressure of 1800 bar by optimal design by simplification of component and changing number of springs and plates of DPI. It was found that a direct needle-driven piezo injection system features the prototype DPI for passenger vehicle to operate at 1800 bar of injection pressure.
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