Invention Grant
US08728999B2 Method for improving the fuel efficiency of engine oil compositions for large low and medium speed engines by reducing the traction coefficient
有权
通过降低牵引系数来提高大型低速和中速发动机的发动机油组合物的燃油效率的方法
- Patent Title: Method for improving the fuel efficiency of engine oil compositions for large low and medium speed engines by reducing the traction coefficient
- Patent Title (中): 通过降低牵引系数来提高大型低速和中速发动机的发动机油组合物的燃油效率的方法
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Application No.: US13016554Application Date: 2011-01-28
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Publication No.: US08728999B2Publication Date: 2014-05-20
- Inventor: Vincent M. Carey , Kevin L. Crouthamel
- Applicant: Vincent M. Carey , Kevin L. Crouthamel
- Applicant Address: US NJ Annandale
- Assignee: ExxonMobil Research and Engineering Company
- Current Assignee: ExxonMobil Research and Engineering Company
- Current Assignee Address: US NJ Annandale
- Agent Robert A. Migliorini; Derek Kato
- Main IPC: C10M111/04
- IPC: C10M111/04 ; C10M159/20 ; C10M169/04
Abstract:
The present invention is directed to a method for improving the fuel efficiency of large low and medium speed engine oil compositions by reducing the traction coefficient of the oil by formulating the oil using a blend consisting of one or more Group I base oils having a kinematic viscosity at 100° C. of from 2 to less than 12 mm2/s in combination with a Group IV base oil having a kinematic viscosity of at least 38, the difference in kinematic viscosity between the Group I and Group IV oils in the blend being at least 30 mm2/s in combination with a detergent.
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