應用電子水泵技術改善渦輪增壓引擎機油碳化問題

王道明

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College of Mechanical and Electrical Engineering > Department of Vehicle Engineering
Engineering > Transportation Vehicle Engineering

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應用電子水泵技術改善渦輪增壓引擎機油碳化問題

Improve Oil Coking for Turbocharged Engine by using Electric Water Pump

王道明 , Masters　　Advisor：蔡國隆　　

繁體中文

渦輪增壓器；渦輪增壓引擎；渦輪增壓器溫；電子水泵；機油碳化； Turbocharger ； T/C ； Turbo-Charger Engine ； Temperature of Turbo-Charger ； Electric Water Pump

Abstract │ Reference (22) │ Altmetrics

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Energy crisis and environmental protection have been the most important issues these days. Many countries had already set up relevant legislations to achieve the goal of zero-emission and to decrease the fuel consumption. However, there is still much improvement needed in terms of conventional combustion engine. The technology of turbocharger can improve the intake efficiency and the engine power, but it may cause the engine oil to degraded and insufficient the lubrication system by the high temperature above 250℃ when the engine stops.
The purpose of this paper is to overcome the high temperature issues from turbocharger bearings when engine stops, by utilizing an additional smaller Electric Water Pump (EWP) in the cooling system, it only operates when the coolant is over heating or when the engine stops to prevent the oil from degrading. The system's layout, operating time and duration are investigated in this paper to obtain optimal performance.  The primarily experiment results show that the proposed layout and control strategy had effectively lowered the temperature from 225℃ to 112℃ relative to the conventional one.

Reference ( 22 ) 〈TOP〉

3.H. Petitjean, “Advanced Gasoline Engine Turbocharging Technology for Fuel Economy Improvements,” SAE Paper No. 2004-01-0988.
連結：
4.B. Lecointe and G. Monnier, “Downsizing a Gasoline Engine Using Turbocharging with Direct Injection,” SAE Paper No. 2003-01-0542.
連結：
9.E. G. Ribeiro, W. B. Melo, and A. P. A. Fiho, “Application of electric oil pump on automotive systems,” SAE Paper No. 2005-01-4086.
連結：
12.Nobuki Kawamoto, Kiyoshi Naiki, Toshihiro Kawai, Takasuke Shikida and Mamoru Tomatsuri, Development of New 1.8-Liter Engine for Hybrid SAE Paper No. 2009-01-1061
連結：
13.E. G. Riberio, A. P. D. A. Fiho, and J. L. D. C. Meira, “Electric water pump for engine cooling,” SAE Paper No. 2007-01-2785.
連結：

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