Optimized Analysis on the Working Process of Engine Variable Gas Distribution Phase

DOI

10.2991/msmee-17.2017.321How to use a DOI?

Keywords

Engine; Valve timing mechanism; Variable gas distribution phase

Abstract

In this paper, a calculation model of 491Q gasoline engine working process was established using the engine one-dimensional simulation software BOOST, and through the analysis on the curve of pressure fluctuation in the front of the inlet valve at the speeds, the relationship between the late closed angle of the inlet valve and the performance parameters of the engine was concluded, and the late closed angle of the inlet valve on the basis of the principle of camshaft phase modulation was determined and optimized. After the simulated calculation of the engine adopting the optimized late closed angle of the inlet valve was done again, the results show that when the late closed angle of the inlet valve on the engine lagged by 10°CA, the maximum power increased by 3.6%, the power and torque in the high speed zone were on average increased by 3% ~ 7%, and the fuel economy was also much improved.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Fengjun Wang
PY  - 2017/05
DA  - 2017/05
TI  - Optimized Analysis on the Working Process of Engine Variable Gas Distribution Phase
BT  - Proceedings of the 2017 2nd International Conference on Materials Science, Machinery and Energy Engineering (MSMEE 2017)
PB  - Atlantis Press
SP  - 1764
EP  - 1769
SN  - 2352-5401
UR  - https://doi.org/10.2991/msmee-17.2017.321
DO  - 10.2991/msmee-17.2017.321
ID  - Wang2017/05
ER  -