- 专利标题： Lubricants for use in boosted engines
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申请号： US15409514申请日： 2017-01-18
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公开(公告)号： US11155764B2公开(公告)日： 2021-10-26
- 发明人: Kongsheng Yang , Kristin Fletcher , William Y. Lam , Jeremy Styer
- 申请人： Afton Chemical Corporation
- 申请人地址： US VA Richmond
- 专利权人： Afton Chemical Corporation
- 当前专利权人： Afton Chemical Corporation
- 当前专利权人地址： US VA Richmond
- 代理机构： Mendelsohn Dunleavy, P.C.
- 主分类号： C10M135/10
- IPC分类号： C10M135/10 ; C10M171/00 ; C10M163/00 ; C10M129/50 ; C10M139/00 ; C10N10/04 ; C10N10/12 ; C10N30/04 ; C10N30/08 ; C10N30/10 ; C10N30/00 ; C10N40/25 ; C10N60/14
摘要：
A lubricating oil composition and method of operating a boosted internal combustion engine. The lubricating oil composition includes greater than 50 wt. % of a base oil of lubricating viscosity, calcium, nitrogen, molybdenum and boron. The weight ratio of Ca:N (ppm/ppm) in the lubricating oil composition is greater than 1.3 to less than 3.0, the weight ratio of Ca:Mo (ppm/ppm) in the lubricating oil composition is greater than 6.7 to less than 56.3, and the weight ratio of Ca:B (ppm/ppm) in the lubricating oil composition is greater than 5.0 to less than 9.8. The lubricating oil composition does not contain added magnesium from a magnesium-containing detergent. The lubricating oil composition is resistant to deposit formation in the boosted internal combustion engine, as shown by its ability to ensure a TCO Temperature Increase of less than 9.0% as measured using the 2015 version of the General Motors dexos1® Turbocharger Coking Test.
公开/授权文献
- US20170321145A1 Lubricants for Use in Boosted Engines 公开/授权日：2017-11-09
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