EP0237356A2 - Brennstoffzusammensetzung für mehrspaltige Brennstoffinjektionsanlagen und deren Verwendung - Google Patents

Brennstoffzusammensetzung für mehrspaltige Brennstoffinjektionsanlagen und deren Verwendung Download PDF

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Publication number
EP0237356A2
EP0237356A2 EP87302162A EP87302162A EP0237356A2 EP 0237356 A2 EP0237356 A2 EP 0237356A2 EP 87302162 A EP87302162 A EP 87302162A EP 87302162 A EP87302162 A EP 87302162A EP 0237356 A2 EP0237356 A2 EP 0237356A2
Authority
EP
European Patent Office
Prior art keywords
fuel
alkyl
aryl
polyglycols
bis
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.)
Granted
Application number
EP87302162A
Other languages
English (en)
French (fr)
Other versions
EP0237356B1 (de
EP0237356A3 (en
Inventor
Abraham Abba Zimmerman
Joseph Vardi
Joel Robert Siegel
Geoffrey Anthony Canton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to AT87302162T priority Critical patent/ATE71134T1/de
Publication of EP0237356A2 publication Critical patent/EP0237356A2/de
Publication of EP0237356A3 publication Critical patent/EP0237356A3/en
Application granted granted Critical
Publication of EP0237356B1 publication Critical patent/EP0237356B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/143—Organic compounds mixtures of organic macromolecular compounds with organic non-macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C10L10/02—Use of additives to fuels or fires for particular purposes for reducing smoke development
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C10L10/04—Use of additives to fuels or fires for particular purposes for minimising corrosion or incrustation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C10L10/06—Use of additives to fuels or fires for particular purposes for facilitating soot removal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/192—Macromolecular compounds
    • C10L1/198—Macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds homo- or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon to carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid
    • C10L1/1981—Condensation polymers of aldehydes or ketones
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/192—Macromolecular compounds
    • C10L1/198—Macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds homo- or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon to carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid
    • C10L1/1985—Macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds homo- or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon to carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid polyethers, e.g. di- polygylcols and derivatives; ethers - esters
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/222—Organic compounds containing nitrogen containing at least one carbon-to-nitrogen single bond
    • C10L1/2222—(cyclo)aliphatic amines; polyamines (no macromolecular substituent 30C); quaternair ammonium compounds; carbamates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/23—Organic compounds containing nitrogen containing at least one nitrogen-to-oxygen bond, e.g. nitro-compounds, nitrates, nitrites
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/232—Organic compounds containing nitrogen containing nitrogen in a heterocyclic ring
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/24—Organic compounds containing sulfur, selenium and/or tellurium
    • C10L1/2431—Organic compounds containing sulfur, selenium and/or tellurium sulfur bond to oxygen, e.g. sulfones, sulfoxides
    • C10L1/2437—Sulfonic acids; Derivatives thereof, e.g. sulfonamides, sulfosuccinic acid esters
EP87302162A 1986-03-14 1987-03-13 Brennstoffzusammensetzung für mehrspaltige Brennstoffinjektionsanlagen und deren Verwendung Expired - Lifetime EP0237356B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87302162T ATE71134T1 (de) 1986-03-14 1987-03-13 Brennstoffzusammensetzung fuer mehrspaltige brennstoffinjektionsanlagen und deren verwendung.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US84032086A 1986-03-14 1986-03-14
US840320 1986-03-14
US85860386A 1986-05-01 1986-05-01
US858603 1986-05-01

Publications (3)

Publication Number Publication Date
EP0237356A2 true EP0237356A2 (de) 1987-09-16
EP0237356A3 EP0237356A3 (en) 1988-01-07
EP0237356B1 EP0237356B1 (de) 1992-01-02

Family

ID=27126175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87302162A Expired - Lifetime EP0237356B1 (de) 1986-03-14 1987-03-13 Brennstoffzusammensetzung für mehrspaltige Brennstoffinjektionsanlagen und deren Verwendung

Country Status (9)

Country Link
EP (1) EP0237356B1 (de)
KR (1) KR950001710B1 (de)
CN (1) CN87101878A (de)
AU (1) AU602330B2 (de)
BR (1) BR8701169A (de)
CA (1) CA1304940C (de)
DE (1) DE3775584D1 (de)
ES (1) ES2027690T3 (de)
NZ (1) NZ219531A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0353713A1 (de) * 1988-08-05 1990-02-07 Kao Corporation Verwendung eines Additives für Brennstoff
EP0441014A1 (de) * 1990-02-06 1991-08-14 Ethyl Petroleum Additives Limited In Zufuhranlage Niederschläge kontrollierende Zusammensetzungen
EP0488747A1 (de) * 1990-11-29 1992-06-03 The Lubrizol Corporation (an Ohio corporation) Zusammensetzung und Verfahren betreffend Diesel angetriebene Fahrzeuge
US5160350A (en) * 1988-01-27 1992-11-03 The Lubrizol Corporation Fuel compositions
WO1996021709A1 (en) * 1995-01-10 1996-07-18 Exxon Chemical Patents Inc. Fuel compositions
US5689049A (en) * 1994-12-08 1997-11-18 Pioneer Hi-Bred International, Inc. Transgenic plant and method for producing male sterility using anther specific promoter 5126
US5763243A (en) * 1994-12-08 1998-06-09 Pioneer Hi-Bred International, Inc. Reversible nuclear genetic system for male sterility in transgenic plants
EP0869163A1 (de) * 1997-04-03 1998-10-07 Mobil Oil Corporation Verfahren zur Motorreibungsherabsetzung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7422161B2 (en) * 2006-03-30 2008-09-09 Afton Chemical Corporation Treated port fuel injectors
CN106635198A (zh) * 2016-12-22 2017-05-10 上海灵融实业发展有限公司 一种汽油动力改进清净复合剂

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115400A (en) * 1960-08-01 1963-12-24 Armour & Co Motor fuel composition
US3424565A (en) * 1968-01-05 1969-01-28 Nalco Chemical Co Gasoline inhibited against emulsion formation
GB1153024A (en) * 1966-05-05 1969-05-21 Exxon Research Engineering Co Rust Inhibited Hydrocarbon Fuels
US3873278A (en) * 1973-11-29 1975-03-25 Du Pont Gasoline
US3909215A (en) * 1973-03-27 1975-09-30 Chevron Res Rust inhibitors for hydrocarbon fuels
GB1450846A (en) * 1974-07-20 1976-09-29 Texaco Development Corp Demulsification compositions
FR2405987A1 (fr) * 1977-10-13 1979-05-11 Lubrizol Corp Compositions d'additifs desemulsionnants pour lubrifiants et combustibles et compositions les contenant
US4231883A (en) * 1979-05-04 1980-11-04 Ethyl Corporation Lubricant composition
FR2518114A1 (fr) * 1981-12-14 1983-06-17 Lubrizol Corp Combinaisons d'hydroxy-amines et de dispersants carboxyliques comme additifs pour combustibles
US4398921A (en) * 1981-11-02 1983-08-16 Ethyl Corporation Gasohol compositions
US4549885A (en) * 1984-10-30 1985-10-29 Ethyl Corporation Fuel compositions
EP0234753A1 (de) * 1986-01-29 1987-09-02 Exxon Research And Engineering Company Brennstoffzusammensetzung

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115400A (en) * 1960-08-01 1963-12-24 Armour & Co Motor fuel composition
GB1153024A (en) * 1966-05-05 1969-05-21 Exxon Research Engineering Co Rust Inhibited Hydrocarbon Fuels
US3424565A (en) * 1968-01-05 1969-01-28 Nalco Chemical Co Gasoline inhibited against emulsion formation
US3909215A (en) * 1973-03-27 1975-09-30 Chevron Res Rust inhibitors for hydrocarbon fuels
US3873278A (en) * 1973-11-29 1975-03-25 Du Pont Gasoline
GB1450846A (en) * 1974-07-20 1976-09-29 Texaco Development Corp Demulsification compositions
FR2405987A1 (fr) * 1977-10-13 1979-05-11 Lubrizol Corp Compositions d'additifs desemulsionnants pour lubrifiants et combustibles et compositions les contenant
US4231883A (en) * 1979-05-04 1980-11-04 Ethyl Corporation Lubricant composition
US4398921A (en) * 1981-11-02 1983-08-16 Ethyl Corporation Gasohol compositions
FR2518114A1 (fr) * 1981-12-14 1983-06-17 Lubrizol Corp Combinaisons d'hydroxy-amines et de dispersants carboxyliques comme additifs pour combustibles
US4549885A (en) * 1984-10-30 1985-10-29 Ethyl Corporation Fuel compositions
EP0234753A1 (de) * 1986-01-29 1987-09-02 Exxon Research And Engineering Company Brennstoffzusammensetzung

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160350A (en) * 1988-01-27 1992-11-03 The Lubrizol Corporation Fuel compositions
EP0353713A1 (de) * 1988-08-05 1990-02-07 Kao Corporation Verwendung eines Additives für Brennstoff
US5298038A (en) * 1988-08-05 1994-03-29 Kao Corporation Guerbet branched alkoxylated amine detergent additives
EP0441014A1 (de) * 1990-02-06 1991-08-14 Ethyl Petroleum Additives Limited In Zufuhranlage Niederschläge kontrollierende Zusammensetzungen
EP0488747A1 (de) * 1990-11-29 1992-06-03 The Lubrizol Corporation (an Ohio corporation) Zusammensetzung und Verfahren betreffend Diesel angetriebene Fahrzeuge
US5197997A (en) * 1990-11-29 1993-03-30 The Lubrizol Corporation Composition for use in diesel powered vehicles
US5360460A (en) * 1990-11-29 1994-11-01 The Lubrizol Corporation Composition and method relating to diesel powered vehicles
US5750868A (en) * 1994-12-08 1998-05-12 Pioneer Hi-Bred International, Inc. Reversible nuclear genetic system for male sterility in transgenic plants
US5689049A (en) * 1994-12-08 1997-11-18 Pioneer Hi-Bred International, Inc. Transgenic plant and method for producing male sterility using anther specific promoter 5126
US5689051A (en) * 1994-12-08 1997-11-18 Pioneer Hi-Bred International, Inc. Transgenic plants and DNA comprising anther specific promoter 5126 and gene to achieve male sterility
US5763243A (en) * 1994-12-08 1998-06-09 Pioneer Hi-Bred International, Inc. Reversible nuclear genetic system for male sterility in transgenic plants
US5792853A (en) * 1994-12-08 1998-08-11 Pioneer Hi-Bred International, Inc. Reversible nuclear genetic system for male sterility in transgenic plants
US5795753A (en) * 1994-12-08 1998-08-18 Pioneer Hi-Bred International Inc. Reversible nuclear genetic system for male sterility in transgenic plants
US5837851A (en) * 1994-12-08 1998-11-17 Pioneer Hi-Bred International, Inc. DNA promoter 5126 and constructs useful in a reversible nuclear genetic system for male sterility in transgenic plants
US6072102A (en) * 1994-12-08 2000-06-06 Pioneer Hi-Bred International, Inc. Reversible nuclear genetic system for male sterility in transgenic plants
US6248935B1 (en) 1994-12-08 2001-06-19 Pioneer Hi-Bred International, Inc. Reversible nuclear genetic system for male sterility in transgenic plants
US6281348B1 (en) 1994-12-08 2001-08-28 Pioneer Hi-Bred International, Inc. Reversible nuclear genetic system for male sterility in transgenic plants
US6399856B1 (en) 1994-12-08 2002-06-04 Pioneer Hi-Bred International, Inc. Reversible nuclear genetic system for male sterility in transgenic plants
WO1996021709A1 (en) * 1995-01-10 1996-07-18 Exxon Chemical Patents Inc. Fuel compositions
EP0869163A1 (de) * 1997-04-03 1998-10-07 Mobil Oil Corporation Verfahren zur Motorreibungsherabsetzung

Also Published As

Publication number Publication date
CN87101878A (zh) 1987-10-21
CA1304940C (en) 1992-07-14
DE3775584D1 (de) 1992-02-13
BR8701169A (pt) 1988-01-05
NZ219531A (en) 1991-10-25
KR870008996A (ko) 1987-10-22
EP0237356B1 (de) 1992-01-02
ES2027690T3 (es) 1992-06-16
AU602330B2 (en) 1990-10-11
AU6998887A (en) 1987-09-17
KR950001710B1 (ko) 1995-02-28
EP0237356A3 (en) 1988-01-07

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