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AMESim기반 피에조 인젝터용 해석모델의 민감도 특성 해석
- Issue Date
- 2013
- Publisher
- 한국자동차공학회
- Keywords
- Piezo-driven injector(피에조 인젝터); Inverse piezo-electric effect(역압전효과); AMESim simulation code(AMESim 해석 코드); CRDi Injector(커먼레일 직접분사용 인젝터)
- Citation
- 한국자동차공학회 논문집, v.21, no.2, pp.17 - 25
- Journal Title
- 한국자동차공학회 논문집
- Volume
- 21
- Number
- 2
- Start Page
- 17
- End Page
- 25
- ISSN
- 1225-6382
- Abstract
- Performance of DI diesel engine with high fuel injection method is directly related to the emission characteristics and fuel consumption. At present, diesel injection system with piezo element is replacing conventional solenoid type due to their faster electro-mechanical properties. In this study, it was investigated the sensitivity characteristics regarding internal hydraulic modeling based on the AMESim environment of piezo-driven injector The analytic parameter for this study defined such as In/Out orifice, injection hole's diameter and driven voltage on piezo stack. As the results, it was shown that these parameter influence on a fast response characteristics of piezo-driven injector. Also we found fuel pressure recovery time is faster about 0.1 ms due to larger IN orifice diameter. And larger OUT orifice diameter occurs maximum pressure drop with faster its timing of about 0.2 ms.
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Related Researcher
- Lee, Jin wook
- College of Engineering (School of Mechanical Engineering)