Invention Grant
- Patent Title: Lubricant compositions for direct injection engines
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Application No.: US16245731Application Date: 2019-01-11
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Publication No.: US10669505B2Publication Date: 2020-06-02
- Inventor: Patrick E. Mosier , Jeffry G. Dietz , Alexander Sammut
- Applicant: The Lubrizol Corporation
- Applicant Address: US OH Wickliffe
- Assignee: THE LUBRIZOL CORPORATION
- Current Assignee: THE LUBRIZOL CORPORATION
- Current Assignee Address: US OH Wickliffe
- Agent Michael Miller; Deron Cook; Teresan Gilbert
- Main IPC: C10M135/10
- IPC: C10M135/10 ; C10M159/20 ; C10M159/22 ; C10M159/24
Abstract:
The invention is directed to a method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine by supplying to the sump a lubricant composition which contains an oil of lubricating viscosity and an overbased sodium detergent. The metal overbased detergent may be selected from sulfonate detergents, phenate detergents, and salicylate detergents, including sulfonate detergents with a metal ratio of at least 5.
Public/Granted literature
- US20190144775A1 LUBRICANT COMPOSITIONS FOR DIRECT INJECTITON ENGINES Public/Granted day:2019-05-16
Information query
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