Invention Grant
- Patent Title: Lubricating oil composition for internal combustion engine
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Application No.: US17056192Application Date: 2019-05-17
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Publication No.: US11649413B2Publication Date: 2023-05-16
- Inventor: Hiromitsu Matsuda , Koji Hoshino
- Applicant: ENEOS Corporation
- Applicant Address: JP Tokyo
- Assignee: ENEOS CORPORATION
- Current Assignee: ENEOS CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP 2018096500 2018.05.18
- International Application: PCT/JP2019/019803 2019.05.17
- International Announcement: WO2019/221296A 2019.11.21
- Date entered country: 2020-11-17
- Main IPC: C10M169/04
- IPC: C10M169/04 ; C10M101/02 ; C10M107/10 ; C10M125/10 ; C10M135/18 ; C10M137/10 ; C10N30/00 ; C10N10/04 ; C10N10/12 ; C10N20/02 ; C10N30/02 ; C10N30/04 ; C10N40/25

Abstract:
A lubricating oil composition for an internal combustion engine includes: a lubricant base oil including at least one mineral base oil, at least one synthetic base oil, or any combination thereof, and having a kinematic viscosity at 100° C. of 3.0 to 4.0 mm2/s and a NOACK evaporation loss at 250° C. of no more than 15 mass %; (A) a calcium-containing metallic detergent in an amount of no less than 1000 mass ppm and less than 2000 mass ppm in terms of calcium; (B) a magnesium-containing metallic detergent in an amount of 100 to 1000 mass ppm in terms of magnesium; (G) a zinc dialkyl dithiophosphate in an amount of no less than 600 mass ppm in terms of phosphorus; and optionally (C) a viscosity index improver in an amount of no more than 5 mass %.
Public/Granted literature
- US20210214640A1 LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE Public/Granted day:2021-07-15
Information query
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