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US 2015/0175931 A1Published application
Grease composition for engine bearing
AssigneeHyundai Motor Company
InventorJae Hyeon Kim
Life of this patent
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Abstract
Disclosed is a grease composition for an engine bearing. The grease composition is a hybrid type grease composition which includes: a mixture of an ester-based base oil and a fluorine-based base oil as a base oil; and a mixture of a urea-based thickener and a fluorine-based thickener as a thickener. Accordingly, maximized effects in durability and heat resistance as the grease for an engine bearing may be obtained by optimally blending the base oils, the thickeners and the like.
Claims5
A grease composition for an engine bearing, comprising:
- an ester-based base oil;
- a urea-based thickener;
- and
- an additive,
- wherein the grease composition comprises the ester-based base oil in an amount of about 50 to 70 wt %;
- a fluorine-based base oil in an amount of about 18 to 30 wt %;
- the urea-based thickener in an amount of about 8 to 15 wt % of;
- a fluorine-based thickener in an amount of about 1 to 10 wt %;
- and the additive in an amount of about 1 to 10 wt %, based on the total weight of the grease composition.
6 more elements
Dependencies are inferred from the claim text.