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Oil Dilution Effect on GDI Engine Lubrication System and Bearings
| 题名： | Oil Dilution Effect on GDI Engine Lubrication System and Bearings |
| 正文语种： | 中文 |
| 作者： | Zhou Quanbao Li Xian |
| 作者单位： | hangan UK R& enter o.,Ltd. hangan hongqing utomotive o.,Ltd. |
| 关键词： | Oil dilution gasoline engine lubrication oil pressure bearings |
| 摘要： | More and more gasoline engines are using direction injection system to improve engine performance and to reduce fuel consumption.One of the potential negative effects of gasoline direct injection(GDI)is the increase of cylinder wall wetting,hence fuel dilution to the oil in the sump.Fuel diluted oil could cause lubrication failure and the common consequences include①low oil pressure due to low viscosity; ②oil film breakdown(in bearing or between piston/ring and liner due to low viscosity;③oil level increase with running time,hence higher churning loss; ④shorter oil life due to oil degradation and⑤loss of sealing effect(hence increase of blowby)etc.This paper will present investigation related to the oil dilution on oil pressure and bearing oil film thickness. |
| 会议日期： | 201510 |
| 会议举办地点： | 上海 |
| 会议名称： | 2015中国汽车工程学会年会 |
| 出版日期： | 2015-09-30 |
| 母体文献： | 2015中国汽车工程学会年会论文集 |
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