Método de lubricación de un ajustador de juego libre de un tren de válvulas de balancín de pivote terminal

    公开(公告)号:ES2567566T3

    公开(公告)日:2016-04-25

    申请号:ES14752735

    申请日:2014-08-06

    Applicant: LUBRIZOL CORP

    Abstract: Un método de lubricación de un ajustador de juego libre de un tren de válvulas de balancín de pivote terminal de un motor de combustión interna de encendido por compresión de un vehículo de pasajeros que tiene una masa de referencia que no excede de 2610 kg que comprende suministrar al motor de combustión interna una composición lubricante que comprende un aceite de viscosidad lubricante, de un 0,01 % en peso a un 3 % en peso de un modificador de viscosidad dispersante, y de un 0,01 % en peso a un 3 % en peso de un agente antidesgaste que contiene azufre exento de cinc, en el que la composición lubricante tiene un contenido de azufre de menos de 5000 ppm, un contenido de fósforo de 1000 ppm o menos, y un contenido de ceniza sulfatada de 3000 a 12.000 ppm.

    Lubricating composition including esterified copolymer and diene rubber polymer

    公开(公告)号:AU2013306023A1

    公开(公告)日:2015-02-26

    申请号:AU2013306023

    申请日:2013-08-19

    Applicant: LUBRIZOL CORP

    Abstract: A lubricating composition includes (A) an esterified copolymer comprising units (A1) derived from a vinyl monomer and units (A2) derived from a carboxylic acid monomer, the vinyl monomer comprising a vinyl aliphatic monomer, the carboxylic acid monomer comprising an ethylenically unsaturated carboxylic acid or derivative thereof, esterified with a primary alcohol; and (B) a diene rubber copolymer comprising at least a first block (B1) derived from a conjugated diene monomer and at least a second block (B2) derived from a vinyl aromatic monomer. A ratio of the diene rubber copolymer to the esterified copolymer in the lubricating composition (B:A) is from 0.01 to 0.9, by weight.

    LUBRICANTS WITH GOOD TBN RETENTION
    18.
    发明专利

    公开(公告)号:CA2827438A1

    公开(公告)日:2012-08-23

    申请号:CA2827438

    申请日:2012-02-15

    Applicant: LUBRIZOL CORP

    Abstract: A lubricant composition containing a metal-containing detergent in an amount to provide at least about 2 TBN to the lubricant, and a dispersant comprising an oleophilic portion comprising at least about 40 carbon atoms and an acid-bearing portion, characterized in having a TAN:TBN ratio of at least about 0.8, exhibits good TBN retention.

    Quaternary ammonium salt detergents for use in fuels

    公开(公告)号:SG166203A1

    公开(公告)日:2010-11-29

    申请号:SG201007919

    申请日:2006-06-13

    Applicant: LUBRIZOL CORP

    Abstract: A quaternary ammonium salt detergent made from the reaction product of the reaction of: (a) a hydrocarbyl substituted acylating agent and a compound having an oxygen or nitrogen atom capable of condensing with said acylating agent and further having a tertiary amino group; and (b) a quaternizing agent suitable for converting the tertiary amino group to a quaternary nitrogen and the use of such quaternary ammonium salt detergents in a fuel composition to reduce intake valve deposits.

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