摘要:
Die vorliegende Erfindung betrifft die Verwendung quaternisierter Alkylamin-Stickstoffverbindungen als Kraft- und Schmierstoffadditiv, wie insbesondere als Detergensadditiv; zur Verringerung oder Verhinderung von Ablagerungen in den Einspritzsystemen von direkteinspritzenden Dieselmotoren, insbesondere in Common-Rail-Einspritzsystemen, zur Verringerung des Kraftstoffverbrauches von direkteinspritzenden Dieselmotoren, insbesondere von Dieselmotoren mit Common-Rail-Einspritzsystemen, und zur Minimierung des Leistungsverlustes (power loss) in direkteinspritzenden Dieselmotoren, insbesondere in Dieselmotoren mit Common-Rail-Einspritzsystemen; sowie als Additiv für Ottokraftstoffe, insbesondere zum Betrieb von DISI Motoren.
摘要:
A composition comprises a sulphur free reaction product of: (a)(i) a hydrocarbyl substituted aromatic compound containing an acidic group selected from the group consisting of a carboxylic group, a hydroxyl group and mixtures thereof; and (a)(ii) an organic nitrogen-containing base reacted with the acidic group. The composition is obtained by a preparatory process and is useful in a method for lubricating an internal combustion engine to include where the lubricant has reduced levels of sulphur, phosphorus and sulphated ash.
摘要:
A lubricating oil composition which comprises a lube base oil comprising a mineral oil and/or synthetic oil and contains, as (A) an ash-free dispersant, an alkenyl- or alkylsuccinimide and/or a boron compound derivative thereof incorporated in the base oil in an amount of 0.01-0.14 mass% in terms of nitrogen amount based on the composition, the content of the alkenyl- or alkylsuccinic acid monoimide and/or boron compound derivative thereof in the ash-free dispersant being 0.05 mass% or lower in terms of nitrogen amount based on the composition. The composition further contains, as (B) an antioxidant, a dialkyldiphenylamine compound and a hindered phenol compound in amounts of 0.3-5.0 mass% and 0-2.5 mass%, respectively, based on the composition. The composition has (C) a sulfated ash content of 1.2 mass% or lower. The lubricating oil composition has excellent oxidative stability despite the low ash content and increases little in viscosity and acid value. It is suitable for use as a lubricating oil composition for internal combustion engines which is capable of prolonging the lubricating oil changing distance (time).
摘要:
A composition is disclosed that comprises lubricating oil and at least a first antioxidant and a second antioxidant, the first antioxidant being a secondary diarylamine and the second antioxidant being a 2,2,4-trialkyl-1,2-dihydroquinoline or a polymer thereof. Also disclosed is a method of increasing the oxidation stability of a lubricating oil comprising adding thereto at least a first antioxidant and a second antioxidant, the first antioxidant being a secondary diarylamine and the second antioxidant being a 2,2,4-trialkyl-1,2-dihydroquinoline or a polymer thereof.
摘要:
Ein Schmierstoff auf Basis eines mineralischen oder synthetischen Oeles wird gegen oxidativen Abbau stabilisiert durch Zusatz eines Gemisches aus mindestens einem bestimmten aromatischen Amin der Formel I oder II und mindestens einem sterisch gehinderten Amin. Der Schmierstoff kann weitere Antioxidantien oder sonstige Zusätze enthalten. Bevorzugt handelt es sich um Motorenöle.
摘要:
Provided is a grease composition which can be used as a lubricant for roller bearings, exhibits excellent high temperature durability and rust preventive property, and can prevent premature flaking on the rolling surface due to hydrogen embrittlement. A roller bearing 1 is obtained by sealing a grease composition 7 in the periphery of a rolling element 4, this grease composition 7 is composed of a base oil excluding an ester-based synthetic oil, a thickener, and an additive, the additive contains (a) an alkanolamine and (b) 2,2,4-trimethyl-1, 2-dihydroquinoline or a polymer thereof but does not contain an organic sulfonate, and (a) and (b) are contained at from 0.1 to 10 parts by weight with respect to 100 parts by weight of a total amount of the base oil and the thickener, respectively.
摘要:
The invention relates to the use of quaternised alkyl amine nitrogen compounds as a fuel and lubricant additive such as, in particular, a detergent additive; in order to reduce or prevent deposits in the injection systems of direct-injection diesel engines, particularly in common rail injection systems, in order to reduce the fuel consumption of direct-injection diesel engines, particularly of diesel engines with common rail injection systems, and in order to minimise the power loss in direct-injection diesel engines, particularly in diesel engines with common rail injection systems; and also as an additive for petrol fuels, particularly for the operation of DISI engines.
摘要:
A turbo-charged, sump-lubricated internal combustion engine which is susceptible to contamination of lubricant with liquid fuel, is lubricated with a lubricant which contains an amount of an aminic antioxidant, optionally in the absence of a phenolic antioxidant, thereby reducing the deterioration of said lubricant and formation of turbo sludge.