Browse > Article
http://dx.doi.org/10.5916/jkosme.2009.33.8.1100

A Study on the Cycle Analyzing and Intake Valve Control by the Miller Method with a High Expansion into Low-Speed Diesel Engine  

Jag, Tae-Ik (강릉원주대학교 기계자동차공학부)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.33, no.8, 2009 , pp. 1100-1106 More about this Journal
Abstract
Recently, there are quite a lot of attention is drown on the researches related to of Miller method applied high expansion cycle. For this study, high expansion cycles are formed and analyzed with the base view point of thermodynamics, and the features of each factors are also investigated. As a result of analysis, the expansion-compression ratio is expected with a decrease of effective compression ratio as intake valve closing time retarded, however, the decrease of mean effective pressure and its output is accompanied with the counterflow of intake air. Accordingly, as the consequence of such failure, it is expected that an alternative is needed for the realization of high expansion cycles, and the improvement over thermal efficiency. To materialize such cycle, the control system to delay the closing time of intake valve was designed and VVT, the 3 S/B low speed diesel engine, is applied to evaluate the efficiency. The result of the trial shows that there was no significant errors.
Keywords
High expansion; Compression-expansion-ratio; Variable valve timing; Effective compression ratio; Variable compression device;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 장태익, 정양주, 노기철, 이종태, "디젤-아트킨슨 사이클의 고팽창법 강구를 위한 연구(Ⅰ)",한국자동차공학회 춘계학술대회 논문집Ⅱ, pp. 500-506. 2002
2 Naoharu Ueda Hiroshi Sakai, Junso Sasaki Naohide Iso, "The miller cycle gasoline engine for a light duty truck", JSAE 9633027
3 T. Goto, et al., "Development of V6 miller cycle gasoline engine", SAE 940198
4 장태익, 정양주, 이종태, '대형 롱스트로크 디젤기관의 아트킨슨사이클화에 관한연구', 한국자동차공학회 춘계학술대회 논문집Ⅱ, pp.225-231. 2001
5 W.L.R. Gallo, “Thermodynamic Evaluation of Valve Timing”, SAE 921479
6 장태익, '흡. 배기를 고려한 고팽창 저속 디젤기관의 이론해석과 기관성능에 대한 연구', 마린엔지니어링학회지, 제32권, 제8호, pp. 55-60, 2008   과학기술학회마을   DOI   ScienceOn
7 Ryo Shimizu, Masaki Fujii, Takasi Suzuki and Masao Inoue, "Miller cycle engine management system and its distinctive feature", JSAE Review, pp. 305-308, 1994
8 C. M. Chung, J. T. Lee and J. W. Cho, "Trends in technical & development of miller cycle for gasoline engine", KSAE, vol. 17, no.1, 1995