EP0373454A1 - Composition d'huile lubrifiante pour contrôle de puissance - Google Patents

Composition d'huile lubrifiante pour contrôle de puissance Download PDF

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Publication number
EP0373454A1
EP0373454A1 EP89122243A EP89122243A EP0373454A1 EP 0373454 A1 EP0373454 A1 EP 0373454A1 EP 89122243 A EP89122243 A EP 89122243A EP 89122243 A EP89122243 A EP 89122243A EP 0373454 A1 EP0373454 A1 EP 0373454A1
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EP
European Patent Office
Prior art keywords
weight
composition
lubricating oil
oil
sorbitan
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.)
Withdrawn
Application number
EP89122243A
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German (de)
English (en)
Inventor
Toshihiko Idemitsu Kosan Co. Ltd. Ichihashi
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.)
Idemitsu Kosan Co Ltd
Original Assignee
Idemitsu Kosan Co Ltd
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
Priority claimed from JP63308857A external-priority patent/JP2705815B2/ja
Priority claimed from JP63308858A external-priority patent/JP2824070B2/ja
Application filed by Idemitsu Kosan Co Ltd filed Critical Idemitsu Kosan Co Ltd
Publication of EP0373454A1 publication Critical patent/EP0373454A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • C10M163/00—Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential
    • 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
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/52—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of 30 or more atoms
    • C10M133/56—Amides; Imides
    • 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
    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/02—Sulfurised compounds
    • C10M135/04—Hydrocarbons
    • 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
    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/02—Sulfurised compounds
    • C10M135/06—Esters, e.g. fats
    • 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
    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • C10M137/10—Thio derivatives
    • 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
    • C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
    • C10M159/12—Reaction products
    • C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
    • C—CHEMISTRY; METALLURGY
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    • C10M159/12—Reaction products
    • C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
    • C10M159/22—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing phenol radicals
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    • C10M159/12—Reaction products
    • C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
    • C10M159/24—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing sulfonic radicals
    • C—CHEMISTRY; METALLURGY
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    • C10M2207/02—Hydroxy compounds
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/028—Overbased salts thereof
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    • C10M2207/10—Carboxylix acids; Neutral salts thereof
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    • C10M2207/26—Overbased carboxylic acid salts
    • C10M2207/262—Overbased carboxylic acid salts derived from hydroxy substituted aromatic acids, e.g. salicylates
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    • C10M2207/28—Esters
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    • C10M2207/287—Partial esters
    • C10M2207/288—Partial esters containing free carboxyl groups
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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    • C10M2207/287—Partial esters
    • C10M2207/289—Partial esters containing free hydroxy groups
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    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/084—Acrylate; Methacrylate
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/046—Polyamines, i.e. macromoleculars obtained by condensation of more than eleven amine monomers
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    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/06—Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
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    • C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
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    • C10M2219/046—Overbasedsulfonic acid salts
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    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/02—Bearings

Definitions

  • the present invention relates to a lubricating oil composition for power control, and more specifically to a lubricating oil composition which is excellent in frictional characteristics, extreme-pressure properties, antiwear properties and the like, and which is suitable as a lubricating oil for transmission gears, differential gears, hypoid gears of automobiles used at a high temperature for a long period.
  • lubricating oils for power control mechanisms including oils for transmission gears of automobiles
  • conventionally used ones have mainly been the lubricating oils in which anti-scoring properties to the tooth surfaces of gears are regulated by controlling the amount of sulfur-phosphorus based extreme-pressure agent to be added.
  • An object of the present invention is to provide a lubricating oil composition which is excellent in antiwear properties, and extreme-pressure properties, and in addition, favorable in heat-resistance, particularly a lubricating oil composition of a new type containing no phosphorus extreme-­pressure agent.
  • Another object of the present invention is to provide a lubricating oil composition for power control which is excellent in anti-wear properties, and extreme-pressure properties, and at the same time favorable in the operation feeling mentioned above.
  • the present invention provides a lubricating oil composition for power control comprising:
  • Various oils can be used for the base oil as component (A) of the present invention as long as they have a kinematic viscosity at 100°C of 1 to 80 cSt, preferably 3 to 50 cSt.
  • mineral oil-based lubricating oil fraction and synthetic lubricating oil are also available for this component.
  • An example of the mineral oil-based lubricating oil fraction is a purified oil obtained by purifying a distillate oil with a conventional method, said distillate oil having been obtained by atmospheric distillation of a paraffin based crude oil, a naphthene based crude oil, or an intermediate based crude oil, or by vacuum distillation of a residual oil resulting from the atmospheric distillation.
  • the synthetic lubricating oils are poly-alpha-­olefins, polybutenes, dibasic acid esters, polyglycols, hindered esters, alkylbenzenes, polyethers and the like.
  • zinc dithiophosphate sulfurized oils and fats, and sulfurized olefins are used singly or in combination.
  • ZnDTP zinc dithiophosphate
  • alkaline earth metal based detergent-dispersant as component (C) has a base number of 200 mg KOH/g or more
  • branched alkyl ZnDTP and/or alkylphenyl ZnDTP preferably used. In that case, it is preferred that branched alkyl ZnDTP and/or alkylphenyl ZnDTP may occupy more than half the quantity of whole ZnDTP used there.
  • branched alkyl ZnDTP or alkylphenyl ZnDTPs are those of which branched alkyl groups or alkylphenyl groups have 3 to 20 carbon atoms, specifically, ZnDTPs of which branched alkyl groups are iso-propyl groups, 2-­ethylhexyl groups, or alkylphenyl groups are nonylphenyl groups, as main constituent.
  • alkaline earth metal based detergent-dispersant as component (C) has a base number of less than 200 mg KOH/g
  • primary ZnDTP shows a superior stability against oxidation. and is favorably used accordingly. In that cases it is preferred that primary ZnDTP may occupy more than half the quantity of whole ZnDTP used there.
  • preferable examples of the primary ZnDTPs are those of which alkyl groups are primary and have 3 to 20 carbon atoms, specifically, ZnDTPs of which alkyl groups are n-butyl groups, n-amyl groups, n-hexyl groups, or n-octyl groups as main constituent.
  • the sulfurized oils and fats are obtained by reacting sulfur or sulfur-containing compound with oils and fats (lard, soy bean oil, rice bran oil and the like) or terpene. Sulfur content of said oil is not critical, but preferably 5 to 70% by weight.
  • Sulfurized olefin is obtained by reacting olefin having 2 to 15 carbon atoms (propylene, isobutylene, diisobutene and the like) with sulfur or sulfur-containing compounds, or by sulfurizing an olefin polymer (polypropylene, polyisobutylene and the like), and its sulfur content is preferably 20 to 70% by weight.
  • the proportion of the abovementioned component (B) is 0.1 to 10% by weight, preferably 0.5 to 5% by weight, and more preferably 0.5 to 3% by weight based on the total weight of the composition. If the proportion is less than 0.1% by weight, effects of addition is hardly apparent. If it is in excess of 10% by weight, effects corresponding to the added amount are not seen, but on the contrary, stability against oxidation or metal corrosion resistance and other properties might be lowered.
  • alkaline earth metal based detergent-dispersants having the most suitable base number for each purpose are used. Specified examples are the sulfonates, phenates (phenolates), and salicylates of calcium, barium or magnesium. Of these salts, the most suitable are salts of calcium. Besides them, also phosphonates or naphthenates can be used.
  • Alkaline earth metal based detergent-dispersant having a base number of 200 mg KOH/g or more, more specifically 250 to 500 mg KOH/g has the effect to raise the coefficient of kinematic friction ( ⁇ k ) of synchronous ⁇ -V characteristics (frictional characteristics) in the synchromesh mechanism.
  • said coefficient of kinematic friction ( ⁇ k ) becomes lowered, which may result in increase in ⁇ 0/ ⁇ k to make frictional characteristics unfavorable.
  • the proportion of alkaline earth metal based detergent-dispersant in that case is 0.1 to 5% by weight, preferably 0.5 to 3% by weight based on the total weight of the composition. If it is less than 0.1% by weight, effect of addition is not shown sufficiently, and if it is in excess of 5% by weight, amount of abrasion becomes unfavorably increased.
  • the alkaline earth metal based detergent-dispersant having a base number of less than 200 mg KOH/g, particularly 3 to 180 mg KOH/g, an effect to improve heat resistance appears.
  • the base number of alkaline earth metal based detergent-dispersant is 200 mg KOH/g or more, metal fatigue (service life of bearing is shortened) may occur when used at a high temperature for a long term.
  • the proportion of alkaline earth metal based detergent-dispersant is 0.1 to 10% by weight, preferably 1 to 8% by weight based on the total weight of the composition. If the proportion is less than 0.1% by weight, the effect of addition is not shown sufficiently, and if it is in excess of 10% by weight, any improvement in effect corresponding to the amount added is not seen, but amount of abrasion is unfavorably increased.
  • partial ester of a polyhydric alcohol and/or succinimide are/is used as component (D).
  • partial esters of polyhydric alcohols include various kinds such as monoesters and diesters of dihydric to hexahydric alcohols. Examples of them are partial esters of alcohols including glycol, glycerol, trimethylol propane, pentaerythritol, sorbitol and the like, combined with an organic acid residue having 8 to 30 carbon atoms (lauric acid residue, stearic acid residue, oleic acid residue, behenic acid residue and the like).
  • Preferred examples are specifically sorbitan monolaurate, sorbitan dilaurate, sorbitan monooleate, sorbitan dioleate, sorbitan monostearate, sorbitan distearate, sorbitan monobehenate, sorbitan dibehenate, glycerol monolaurate, glycerol monooleate, and the like.
  • Said partial esters of polyhydric alcohols are effective components in improving frictional characteristics of lubricating oil composition, and shows a remarkable effect particularly when used in combination with said alkaline earth metal based detergent-dispersant as component (C) having a base number of 200 mg KOH/g or more.
  • the proportion of the abovementioned partial ester should be 0.05 to 3% by weight, preferably 0.1 to 2% by weight based on the total weight of the composition. If the proportion is less than 0.05% by weight, the effect by addition is not developed sufficiently, and if it is in excess of 3% by weight, stability against oxidation and water separation properties will receive a bad influence.
  • succinimides various ones including alkenyl succinimide and alkyl succinimide can be used.
  • reaction products and derivatives thereof obtained by reacting a boron compound (boric acid, boric acid salt, boric acid ester and the like) with alkenyl succinimide, or alkyl succinimide can be used.
  • alkenyl succinimide containing an alkenyl group having 15 to 500 carbon atoms for example, polybutenyl succinimide having a molecular weight of 200 to 5000.
  • Said succinimide is an effective component to improve the heat-resistance of lubricating oil composition. It shows a remarkable effect particularly when used in combination with alkaline earth metal based detergent-dispersant having a base number of less than 200 mg KOH/g as component (C).
  • the proportion of the succinimide should be 0.1 to 5% by weight, preferably 0.5 to 3% by weight based on the total weight of the composition. If said proportion is less than 0.1% by weight, effect by addition is not shown sufficiently, and if it is in excess of 5% by weight, no improvement in effect can be expected.
  • the lubricating oil composition of the present invention comprises components (A) to (D) mentioned above as inevitable components, and if necessary, each an appropriate amount of various additives such as ashless dispersants, extreme-­pressure agents, viscosity index improvers, pour point depressants, defoaming agents and others can be compounded.
  • various additives such as ashless dispersants, extreme-­pressure agents, viscosity index improvers, pour point depressants, defoaming agents and others can be compounded.
  • the lubricating oil composition of the present invention has sufficient extreme-pressure properties, anti-wear properties, metal fatigue life, and also favorable initial frictional characteristics, which means that the ratio of static frictional coefficient/kinematic frictional coefficient is small, and the shock by gear shifting is so moderate as to offer a comfortable operation at driving an automobile. In addition, changes with time of frictional characteristics are small, and said lubricating oil composition is excellent in stability against oxidation and corrosion resistance.
  • the lubricating oil composition of the present invention includes those having a high heat resistance, it shows an excellent lubricity over a long period when applied as gear oils for automobiles, and accordingly the period of replacing oil can be extended.
  • composition of the present invention is useful as a lubricating oil for power control including gear oil for automobiles, lubricating oil for the parts having a wet clutch or a wet blake, industrial gear oils and the like.
  • Test was carried out in accordance with JIS K 2513 on the condition of the temperature of 130°C and the period of 3 hours.
  • Test was carried out in accordance with JIS K 2514. 3.1, on the condition that the test temperature was 150°C, and test period was 96 hours.
  • the amount of undissolved portion denotes the amount of undissolved n-pentane determined according to ASTM D 893, method B.
  • Test was carried out in accordance with ASTM D 4172. Each of the test samples was an oil degraded in the abovementioned Oxidation Stability Test. Conditions: 1200 rpm, 60 min., 40 kg/cm2, oil temperature: 75°C

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
EP89122243A 1988-12-08 1989-12-02 Composition d'huile lubrifiante pour contrôle de puissance Withdrawn EP0373454A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP308857/88 1988-12-08
JP63308857A JP2705815B2 (ja) 1988-12-08 1988-12-08 動力制御用潤滑油組成物
JP308858/88 1988-12-08
JP63308858A JP2824070B2 (ja) 1988-12-08 1988-12-08 ギヤ油組成物

Publications (1)

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EP0373454A1 true EP0373454A1 (fr) 1990-06-20

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0462319A1 (fr) * 1990-06-20 1991-12-27 The Lubrizol Corporation (an Ohio corporation) Lubrifiants, dispositifs pour lubrifiants, et méthode pour lubrifier à l'aide d'un carter des moteurs à combustion interne utilisant un alcool comme carburant par injection
EP1518919A1 (fr) * 2003-09-25 2005-03-30 Afton Chemical Corporation Huile pour engrenages exempt de bore
WO2007064336A1 (fr) * 2005-12-02 2007-06-07 United Technologies Corporation Procedes et systemes permettant d'ameliorer l'efficacite des systemes de transmission de puissance contenant des lubrifiants ayant une viscosite plus elevee
WO2010049439A1 (fr) * 2008-10-28 2010-05-06 Volkswagen Ag Composition lubrifiante synthétique et son utilisation
WO2011131614A1 (fr) * 2010-04-23 2011-10-27 Volkswagen Ag Composition lubrifiante synthétique et son utilisation dans des différentiels actifs
CN102686352A (zh) * 2009-11-17 2012-09-19 伊利诺斯工具制品有限公司 小型焊丝输送装置
EP1217239B2 (fr) † 2000-12-22 2012-11-21 Valeo Matériaux de Friction Procédé de fabrication d'une bague de synchronisation de boîte de vitesses, notamment pour véhicule automobile et bague de synchronisation obtenue par un tel procédé

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1485335A (fr) * 1966-07-01 1967-06-16 Lubrizol Corp Additifs pour lubrifiants
GB1152889A (en) * 1966-09-16 1969-05-21 Exxon Research Engineering Co Lubricant Composition for Highly Stressed Gears
FR2009296A1 (fr) * 1968-05-24 1970-01-30 Mobil Oil Corp
FR2277882A1 (fr) * 1974-07-11 1976-02-06 Chevron Res Fluide fonctionnel a duree de vie prolongee
GB1440261A (en) * 1973-02-01 1976-06-23 Exxon Research Engineering Co Lubricant compositions
EP0277729A1 (fr) * 1987-01-21 1988-08-10 Ethyl Corporation Compositions lubrifiantes anti-usures ayant des teneurs faibles en phosphore
EP0305538A1 (fr) * 1987-03-02 1989-03-08 Idemitsu Kosan Company Limited Composition a base d'huile lubrifiante

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1485335A (fr) * 1966-07-01 1967-06-16 Lubrizol Corp Additifs pour lubrifiants
GB1152889A (en) * 1966-09-16 1969-05-21 Exxon Research Engineering Co Lubricant Composition for Highly Stressed Gears
FR2009296A1 (fr) * 1968-05-24 1970-01-30 Mobil Oil Corp
GB1440261A (en) * 1973-02-01 1976-06-23 Exxon Research Engineering Co Lubricant compositions
FR2277882A1 (fr) * 1974-07-11 1976-02-06 Chevron Res Fluide fonctionnel a duree de vie prolongee
EP0277729A1 (fr) * 1987-01-21 1988-08-10 Ethyl Corporation Compositions lubrifiantes anti-usures ayant des teneurs faibles en phosphore
EP0305538A1 (fr) * 1987-03-02 1989-03-08 Idemitsu Kosan Company Limited Composition a base d'huile lubrifiante

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0462319A1 (fr) * 1990-06-20 1991-12-27 The Lubrizol Corporation (an Ohio corporation) Lubrifiants, dispositifs pour lubrifiants, et méthode pour lubrifier à l'aide d'un carter des moteurs à combustion interne utilisant un alcool comme carburant par injection
US5422022A (en) * 1990-06-20 1995-06-06 The Lubrizol Corporation Lubricants, lubricant additives, and methods for lubricating sump-lubricated fuel-injected alcohol-powered internal combustion engines
EP1217239B2 (fr) † 2000-12-22 2012-11-21 Valeo Matériaux de Friction Procédé de fabrication d'une bague de synchronisation de boîte de vitesses, notamment pour véhicule automobile et bague de synchronisation obtenue par un tel procédé
EP1518919A1 (fr) * 2003-09-25 2005-03-30 Afton Chemical Corporation Huile pour engrenages exempt de bore
WO2007064336A1 (fr) * 2005-12-02 2007-06-07 United Technologies Corporation Procedes et systemes permettant d'ameliorer l'efficacite des systemes de transmission de puissance contenant des lubrifiants ayant une viscosite plus elevee
WO2010049439A1 (fr) * 2008-10-28 2010-05-06 Volkswagen Ag Composition lubrifiante synthétique et son utilisation
CN102686352A (zh) * 2009-11-17 2012-09-19 伊利诺斯工具制品有限公司 小型焊丝输送装置
WO2011131614A1 (fr) * 2010-04-23 2011-10-27 Volkswagen Ag Composition lubrifiante synthétique et son utilisation dans des différentiels actifs

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