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디젤엔진용 Cam-in-Cam시스템 적용 가변밸브 성능해석
Performance Analysis of Variable Valve for Diesel Engine with Cam-in-Cam System
- 정석철;
- 박정민;
- 김탁규;
- 이진욱
초록
In this study, the effects of intake valve closing timing by using Cam-in-Cam system on combustion and emission characteristics for diesel engine were investigated under GT-POWER simulation environment. As a result, it was found that volumetric efficiency and effective compression ratio were decreased as the intake valve closing(IVC) timing is retarded due to its backflow effect. Also, we found that in-cylinder pressure, heat release rate and NOx emission were decreased as IVC timing was retarded. These show that the LIVC(late intake valve closing) can be effective to control AFR and mixing rate in diffusion combustion of diesel engine.
키워드
Diesel engine(디젤 엔진); Cam-in-Cam(캠인캠); Variable Valvetrain(가변 밸브트레인); Late Intake Valve Closing(흡기밸브 닫힘시기 지각)
- 제목
- 디젤엔진용 Cam-in-Cam시스템 적용 가변밸브 성능해석
- 제목 (타언어)
- Performance Analysis of Variable Valve for Diesel Engine with Cam-in-Cam System
- 저자
- 정석철; 박정민; 김탁규; 이진욱
- 발행일
- 2017-03
- 저널명
- 한국액체미립화 학회지
- 권
- 22
- 호
- 1
- 페이지
- 22 ~ 28