CA1157846A - Fuel economy - Google Patents
Fuel economyInfo
- Publication number
- CA1157846A CA1157846A CA000340371A CA340371A CA1157846A CA 1157846 A CA1157846 A CA 1157846A CA 000340371 A CA000340371 A CA 000340371A CA 340371 A CA340371 A CA 340371A CA 1157846 A CA1157846 A CA 1157846A
- Authority
- CA
- Canada
- Prior art keywords
- glycerol
- fatty acid
- engine
- acid ester
- fuel economy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 13
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 36
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 12
- 229930195729 fatty acid Natural products 0.000 claims abstract description 12
- 239000000194 fatty acid Substances 0.000 claims abstract description 12
- 239000010687 lubricating oil Substances 0.000 claims abstract description 12
- -1 fatty acid ester Chemical class 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims abstract description 6
- RZRNAYUHWVFMIP-KTKRTIGZSA-N 1-oleoylglycerol Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-KTKRTIGZSA-N 0.000 claims description 5
- RZRNAYUHWVFMIP-HXUWFJFHSA-N glycerol monolinoleate Natural products CCCCCCCCC=CCCCCCCCC(=O)OC[C@H](O)CO RZRNAYUHWVFMIP-HXUWFJFHSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims 2
- 239000002253 acid Substances 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000005690 diesters Chemical class 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 229930014626 natural product Natural products 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- 239000003760 tallow Substances 0.000 description 2
- 150000005691 triesters Chemical group 0.000 description 2
- DTRGDWOPRCXRET-UHFFFAOYSA-N (9Z,11E,13E)-4-Oxo-9,11,13-octadecatrienoic acid Natural products CCCCC=CC=CC=CCCCCC(=O)CCC(O)=O DTRGDWOPRCXRET-UHFFFAOYSA-N 0.000 description 1
- DTRGDWOPRCXRET-SUTYWZMXSA-N (9e,11e,13e)-4-oxooctadeca-9,11,13-trienoic acid Chemical compound CCCC\C=C\C=C\C=C\CCCCC(=O)CCC(O)=O DTRGDWOPRCXRET-SUTYWZMXSA-N 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 235000019482 Palm oil Nutrition 0.000 description 1
- 235000019483 Peanut oil Nutrition 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002285 corn oil Substances 0.000 description 1
- 235000005687 corn oil Nutrition 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 125000000468 ketone group Chemical group 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 239000002540 palm oil Substances 0.000 description 1
- IPCSVZSSVZVIGE-UHFFFAOYSA-N palmitic acid group Chemical group C(CCCCCCCCCCCCCCC)(=O)O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 1
- 239000000312 peanut oil Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/68—Esters
- C10M129/76—Esters containing free hydroxy or carboxyl groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/286—Esters of polymerised unsaturated acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- C10N2040/251—Alcohol-fuelled engines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- C10N2040/255—Gasoline engines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- C10N2040/255—Gasoline engines
- C10N2040/28—Rotary engines
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The fuel economy of an internal combustion engine can be improved by adding to the lubricating oil used to lubricate the crankcase of said en-gine from 0.25 to 2 weight percent of a fatty acid ester of glycerol.
The fuel economy of an internal combustion engine can be improved by adding to the lubricating oil used to lubricate the crankcase of said en-gine from 0.25 to 2 weight percent of a fatty acid ester of glycerol.
Description
~S71~6 0~ LNVENT[ON
~his invention relatcs to a method ~or in~roving the fuel economy of an internal combustion engine.
BACKGROUND OF ~IF, INV~NTION
With -the crisis associated with diminishing amounts of ossil fuel and the rapidly increasing prices for this fuel, there has been a great deal of interest in il~Toving fuel economy, that is, the number of miles obtained in a given vehicle per liter of fuel.
Some fatty acid esters of glycerol are known in the industrial oil area, for use at low concentrations. Some are known to be oiliness agents;
however, since piston and ring lubrication is predominantly hydrodynamic, gains in fuel economy through the use of additives in the lubricating oil which reduce the coefficient of friction in mixed lubrication will probably be small and difficult to assess.
SUMMARY OP T~IE INVENTION
It has now been found that if 0.25 to 2 weight of a fatty acid ester of glycerol is added to the lubricating oil used to lubricate the crank-case of an internal combustion engine a measurable improvement in the fuel economy, that is, the miles per liter of fuell of the engine is observed.
DETAILED DESCRIPTION OF THE INVENTION
Adding from 0.25 to 2 weight percent, and preferably from 0.40 to 1.25 weight percent of a fatty acid ester to a crankcase lubricating oil sig-nificantly improves the fuel economy of the internal combustion engine. Spe-clfically, lmprovements in fuel mileage of from 2 to 3% on the average or more have been observed in engine tests. This fuel economy lmprovement can be obtained in both compression-ignition engines, that is, diesel engines, ~ and spark-ignition engines, that is, gasoline engines.
: Fatty acid esters of glycerol can be prepared by a variety of meth-ods well known in the art. Many of these esters, such as glycerol monooleate and glycerol tallowate, are manufactured on a commercial scale. The esters '~;
~S71~4~
useful for tllis invention are oil-soluble and are preerably prepared from C8 to C22 fatty acicls or mixtures thereof such as are Eound in natural prod-ucts. ~e atty acid may be saturated or unsaturated. Certain compounds found in acids from natural sources may include licanic acid which contains one keto group.
Preferred fatty acids are oleic, stearic, palmitic, myristic, palmitoleic, linoleic, laur:ic, linolenic, and eleostearic, and the acids from the natural products tallow, palm oil, olive oil, peanut oil, corn oil, neat's foot oil and the like.
Particularly preferred acids are oleic acid and the acids rom tal-low.
When glycerol is esterified with a fatty acid, mono-, di- and tri-esters form. Commercial glycerol monooleate, for example, contains a large amount of dioleate and a minor proportion of trioleate. Mono-, di- and tri-esters and mixtures thereof are contemplated for use in this invention.
When, for the sake of convenience, the common term such as "glycerol mono-oleate" is used, the di and trioleates are to be included within the meaning of glycerol monooleate.
The lubricating oil to which the fatty acid ester of glycerol can be added can be any hydrocarbon-based lubricating oil. The hydrocarbon lubri-cating oils may be derived from synthetic or natural sources and may be par-affinic, naphthenic or asphaltic base, or mixtures thereof. A variety of ad-ditives are ordinarily present in lubricating oils used to lubricate modern internal combustion engines. These additives include antioxidants, dispers-ants, rust inhibitors, foam inhibitors, corrosion inhibitors, antiwear agents, and a variety of other well-known additives.
~his invention relatcs to a method ~or in~roving the fuel economy of an internal combustion engine.
BACKGROUND OF ~IF, INV~NTION
With -the crisis associated with diminishing amounts of ossil fuel and the rapidly increasing prices for this fuel, there has been a great deal of interest in il~Toving fuel economy, that is, the number of miles obtained in a given vehicle per liter of fuel.
Some fatty acid esters of glycerol are known in the industrial oil area, for use at low concentrations. Some are known to be oiliness agents;
however, since piston and ring lubrication is predominantly hydrodynamic, gains in fuel economy through the use of additives in the lubricating oil which reduce the coefficient of friction in mixed lubrication will probably be small and difficult to assess.
SUMMARY OP T~IE INVENTION
It has now been found that if 0.25 to 2 weight of a fatty acid ester of glycerol is added to the lubricating oil used to lubricate the crank-case of an internal combustion engine a measurable improvement in the fuel economy, that is, the miles per liter of fuell of the engine is observed.
DETAILED DESCRIPTION OF THE INVENTION
Adding from 0.25 to 2 weight percent, and preferably from 0.40 to 1.25 weight percent of a fatty acid ester to a crankcase lubricating oil sig-nificantly improves the fuel economy of the internal combustion engine. Spe-clfically, lmprovements in fuel mileage of from 2 to 3% on the average or more have been observed in engine tests. This fuel economy lmprovement can be obtained in both compression-ignition engines, that is, diesel engines, ~ and spark-ignition engines, that is, gasoline engines.
: Fatty acid esters of glycerol can be prepared by a variety of meth-ods well known in the art. Many of these esters, such as glycerol monooleate and glycerol tallowate, are manufactured on a commercial scale. The esters '~;
~S71~4~
useful for tllis invention are oil-soluble and are preerably prepared from C8 to C22 fatty acicls or mixtures thereof such as are Eound in natural prod-ucts. ~e atty acid may be saturated or unsaturated. Certain compounds found in acids from natural sources may include licanic acid which contains one keto group.
Preferred fatty acids are oleic, stearic, palmitic, myristic, palmitoleic, linoleic, laur:ic, linolenic, and eleostearic, and the acids from the natural products tallow, palm oil, olive oil, peanut oil, corn oil, neat's foot oil and the like.
Particularly preferred acids are oleic acid and the acids rom tal-low.
When glycerol is esterified with a fatty acid, mono-, di- and tri-esters form. Commercial glycerol monooleate, for example, contains a large amount of dioleate and a minor proportion of trioleate. Mono-, di- and tri-esters and mixtures thereof are contemplated for use in this invention.
When, for the sake of convenience, the common term such as "glycerol mono-oleate" is used, the di and trioleates are to be included within the meaning of glycerol monooleate.
The lubricating oil to which the fatty acid ester of glycerol can be added can be any hydrocarbon-based lubricating oil. The hydrocarbon lubri-cating oils may be derived from synthetic or natural sources and may be par-affinic, naphthenic or asphaltic base, or mixtures thereof. A variety of ad-ditives are ordinarily present in lubricating oils used to lubricate modern internal combustion engines. These additives include antioxidants, dispers-ants, rust inhibitors, foam inhibitors, corrosion inhibitors, antiwear agents, and a variety of other well-known additives.
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A lubricating oil composition comprising an oil of lubricating viscosity and from 0.25 to 2 weight percent of a fatty acid ester of glycerol.
2. A lubricating oil of Claim 1 containing 0.40 to 1.25 weight percent of a C8-22 fatty acid ester of glycerol.
3. A lubricating oil of Claim 2 wherein said fatty acid ester of glycerol is glycerol monooleate.
4. A lubricating oil of Claim 2 wherein said fatty acid ester of glycerol is glycerol tallowate.
5. A method of improving the fuel economy of an internal combustion engine comprising lubricating the crankcase of said engine with an oil of Claim 1.
6. The method of Claim 5 wherein said engine is a compression-ignition engine.
7. The method of Claim 5 wherein said engine is a spark-ignition engine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US97069978A | 1978-12-18 | 1978-12-18 | |
| US970,699 | 1992-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1157846A true CA1157846A (en) | 1983-11-29 |
Family
ID=25517353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000340371A Expired CA1157846A (en) | 1978-12-18 | 1979-11-22 | Fuel economy |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5584394A (en) |
| CA (1) | CA1157846A (en) |
| DE (1) | DE2949910A1 (en) |
| FR (1) | FR2444706B1 (en) |
| GB (1) | GB2038356B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6087308A (en) * | 1998-12-22 | 2000-07-11 | Exxon Research And Engineering Company | Non-sludging, high temperature resistant food compatible lubricant for food processing machinery |
| US6090761A (en) * | 1998-12-22 | 2000-07-18 | Exxon Research And Engineering Company | Non-sludging, high temperature resistant food compatible lubricant for food processing machinery |
| WO2015057279A1 (en) | 2013-10-18 | 2015-04-23 | Chevron Oronite Company Llc | Lubricating oil composition for protection of silver bearings in medium speed diesel engines |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5776096A (en) * | 1980-10-31 | 1982-05-12 | Idemitsu Kosan Co Ltd | Lubricant oil composition |
| GB2097813B (en) * | 1981-05-06 | 1985-09-25 | Exxon Research Engineering Co | Glycerol esters in lubricating oils as fuel economy additives |
| AU549639B2 (en) * | 1981-07-01 | 1986-02-06 | Chevron Research Company | Lubricating oil composition to improve fuel economy |
| MX173581B (en) * | 1981-09-14 | 1994-03-16 | Lubrizol Corp | ADDITIVE CONCENTRATE AND METHOD TO DECREASE THE CONSUMPTION OF FUEL IN INTERNAL COMBUSTION ENGINES |
| US4617026A (en) * | 1983-03-28 | 1986-10-14 | Exxon Research And Engineering Company | Method for improving the fuel economy of an internal combustion engine using fuel having hydroxyl-containing ester additive |
| US4957651A (en) * | 1988-01-15 | 1990-09-18 | The Lubrizol Corporation | Mixtures of partial fatty acid esters of polyhydric alcohols and sulfurized compositions, and use as lubricant additives |
| US4952328A (en) * | 1988-05-27 | 1990-08-28 | The Lubrizol Corporation | Lubricating oil compositions |
| US4981602A (en) * | 1988-06-13 | 1991-01-01 | The Lubrizol Corporation | Lubricating oil compositions and concentrates |
| US4957649A (en) * | 1988-08-01 | 1990-09-18 | The Lubrizol Corporation | Lubricating oil compositions and concentrates |
| US4938881A (en) * | 1988-08-01 | 1990-07-03 | The Lubrizol Corporation | Lubricating oil compositions and concentrates |
| US5282990A (en) * | 1990-07-31 | 1994-02-01 | Exxon Chemical Patents Inc. | Synergistic blend of amine/amide and ester/alcohol friction modifying agents for improved fuel economy of an internal combustion engine |
| EP0553100B1 (en) * | 1990-07-31 | 1996-01-24 | Exxon Chemical Patents Inc. | Synergystic blend of amine/amide and ester/alcohol friction modifying agents for improved fuel economy of an internal combustion engine |
| US5244591A (en) * | 1992-03-23 | 1993-09-14 | Chevron Research And Technology Company | Lubricating oil compositions for internal combustion engines having silver bearing parts |
| US6074995A (en) * | 1992-06-02 | 2000-06-13 | The Lubrizol Corporation | Triglycerides as friction modifiers in engine oil for improved fuel economy |
| CA2195702C (en) * | 1996-01-31 | 2005-11-22 | Sumanth Addagarla | Lubricant composition suitable for direct fuel injected, crankcase-scavenged two-stroke cycle engines |
| JP5127102B2 (en) * | 2001-09-06 | 2013-01-23 | Ｊｘ日鉱日石エネルギー株式会社 | Lubricating oil composition for internal combustion engines |
| US20050070450A1 (en) * | 2003-09-30 | 2005-03-31 | Roby Stephen H. | Engine oil compositions |
| US20080312116A1 (en) * | 2004-11-04 | 2008-12-18 | Hongmei Wen | Multifunctional Lubricant Additive Package |
| JP2007131792A (en) * | 2005-11-11 | 2007-05-31 | Cosmo Sekiyu Lubricants Kk | Engine oil composition |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2527889A (en) * | 1946-08-19 | 1950-10-31 | Union Oil Co | Diesel engine fuel |
| FR1303182A (en) * | 1960-06-15 | 1962-09-07 | Shell Int Research | Lubricating compositions containing novel phosphonates and preparation of these phosphonates |
| GB1059442A (en) * | 1963-03-13 | 1967-02-22 | Mobil Oil Company Ltd | Textile lubricant |
| FR1516811A (en) * | 1965-11-18 | 1968-02-05 | Shell Int Research | Break-in fluid |
| US3542678A (en) * | 1968-03-13 | 1970-11-24 | Lubrizol Corp | Lubricant and fuel compositions containing esters |
| BE781637A (en) * | 1972-04-04 | 1972-07-31 | Labofina Sa | LUBRICATING COMPOSITIONS FOR ROTARY ENGINES. |
-
1979
- 1979-11-22 CA CA000340371A patent/CA1157846A/en not_active Expired
- 1979-12-11 FR FR7930354A patent/FR2444706B1/en not_active Expired
- 1979-12-12 DE DE19792949910 patent/DE2949910A1/en not_active Ceased
- 1979-12-17 JP JP16396079A patent/JPS5584394A/en active Pending
- 1979-12-18 GB GB7943462A patent/GB2038356B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6087308A (en) * | 1998-12-22 | 2000-07-11 | Exxon Research And Engineering Company | Non-sludging, high temperature resistant food compatible lubricant for food processing machinery |
| US6090761A (en) * | 1998-12-22 | 2000-07-18 | Exxon Research And Engineering Company | Non-sludging, high temperature resistant food compatible lubricant for food processing machinery |
| WO2015057279A1 (en) | 2013-10-18 | 2015-04-23 | Chevron Oronite Company Llc | Lubricating oil composition for protection of silver bearings in medium speed diesel engines |
| US9909079B2 (en) | 2013-10-18 | 2018-03-06 | Chevron Oronite Company Llc | Lubricating oil composition for protection of silver bearings in medium speed diesel engines |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2038356A (en) | 1980-07-23 |
| FR2444706A1 (en) | 1980-07-18 |
| GB2038356B (en) | 1983-05-11 |
| JPS5584394A (en) | 1980-06-25 |
| FR2444706B1 (en) | 1985-07-19 |
| DE2949910A1 (en) | 1980-07-03 |
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