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EP0092946A2
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EP
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Glycerol esters with oil-soluble copper compounds as fuel economy additives
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1983-04-15
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Granted: —
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Expires: 2003-04-15
Abstract
Abstract Lubricating oil compositions are disclosed exhibiting improved fuel economy which contain 0.05 to 0.2 wt.% of a glycerol partial ester of a C16-C18 fatty acid and 5 to 500 ppm of copper in the form of an oil-soluble organic copper compound, the two components exhibiting a combined effect in improving fuel economy of internal combustion engines.
Inventors
- 👤 Phillip William Brewster
- 👤 Clinton Richard Smith
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 22:47
CPC Classifications
C; C10; C10M; C10M129/00; C10M129/02; C10M129/04; C10M129/26; C10M129/28; C10M129/38; C10M129/40; C10M129/56; C10M129/58; C10M129/68; C10M129/76; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/06; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/028; C10M2207/09; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/126; C10M2207/129; C10M2207/16; C10M2207/28; C10M2207/287; C10M2207/288; C10M2207/289; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/086; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/02; C10M2217/022; C10M2217/023; C10M2217/024; C10M2217/028; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/045; C10M2227/00; C10M2227/06; C10M2227/061; C10N; C10N2010/00; C10N2010/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
80 words
A lubricating oil composition comprising a major amount of an oil of a lubricating viscosity which has incorporated therein (a) from about 0.05 to about 0.20 weight percent of a glycerol partial ester or mixtures thereof of a C 16 -C 18 fatty acid, and (b) about 5 to 500 ppm of copper in the form of an oil-soluble organic copper compound, said (a) and (b) components exhibiting a combined effect improving the fuel economy of an internal combustion engine.
Claim 2
Dependent Claim
80 words
A lubricating oil composition comprising a major amount of an oil of a lubricating viscosity which has incorporated therein (a) from about 0.05 to about 0.20 weight percent of a glycerol partial ester or mixtures thereof of a C 16 -C 18 fatty acid, and (b) about 5 to 500 ppm of copper in the form of an oil-soluble organic copper compound, said (a) and (b) components exhibiting a combined effect improving the fuel economy of an internal combustion engine.
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein the fatty acid is oleic acid.
Claim 4
Dependent Claim
18 words
The composition of claim 1 wherein said partial ester is a mixture of glycerol monooleate and glycerol dioleate.
Claim 5
Dependent Claim
18 words
The composition of claims 1-3 wherein there is present 0.1 to 0.2 weight percent of said partial ester.
Claim 6
Dependent Claim
34 words
The composition of claims 1-4 wherein said lubricating oil composition contains an ashless dispersant, a metal detergent additive and a zinc dihydrocarbyl dithiophosphate anti-wear additive in conventional amounts to provide their normal attendant functions.
Claim 7
Dependent Claim
15 words
The composition of claim 5 wherein said lubricating oil composition contains a viscosity index improver.
Claim 8
Dependent Claim
12 words
The composition of claims 1-6 where said copper compound is copper oleate.
Claim 9
Dependent Claim
15 words
The composition of claims 1-7 where there is present 60 to 200 ppm of copper.
Claim 10
Independent Claim
81 words
A method of improving the fuel economy of an internal combustion engine by lubricating the internal portion thereof with a lubricating oil composition containing (a) 0.05 to 0.2 wt % of a glycerol partial ester of a C 16 -C 18 fatty acid or mixtures thereof and (b) about 5 to 500 ppm of copper in the form of an oil-soluble organic copper compound, said (a) and (b) components exhibiting a combined effect in improving the fuel economy of said engine.
Claim 11
Independent Claim
81 words
A method of improving the fuel economy of an internal combustion engine by lubricating the internal portion thereof with a lubricating oil composition containing (a) 0.05 to 0.2 wt % of a glycerol partial ester of a C 16 -C 18 fatty acid or mixtures thereof and (b) about 5 to 500 ppm of copper in the form of an oil-soluble organic copper compound, said (a) and (b) components exhibiting a combined effect in improving the fuel economy of said engine.
Claim 12
Dependent Claim
47 words
The method of claim 9 wherein said (a) component is a mixture of glycerol monooleate and glycerol dioleate present in an amount of from 0.1 to 0.2 wt %, and said (b) component is copper oleate present in an amount to provide 60 to 200 ppm copper.
Claim 13
Dependent Claim
35 words
The use as an additive for lubricating oil of a mixture of (A) a glycerol partial ester or mixtures thereof of a C 15 -C 18 fatty acid, and (B) an oil-soluble organic copper compound.
Claim 14
Dependent Claim
35 words
The use as an additive for lubricating oil of a mixture of (A) a glycerol partial ester or mixtures thereof of a C 15 -C 18 fatty acid, and (B) an oil-soluble organic copper compound.
References Cited (Backward Citations)
No citation records indexed.
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