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    DIESEL FUEL COMPOSITIONS
    2.
    发明申请
    DIESEL FUEL COMPOSITIONS 审中-公开

    公开(公告)号：US20180187115A1

    公开(公告)日：2018-07-05

    申请号：US15906250

    申请日：2018-02-27

    申请人： Jacqueline Reid

    发明人： Jacqueline Reid

    IPC分类号： C10L10/04 ,  C10L10/18

    CPC分类号： C10L10/04 ,  C10L1/146 ,  C10L1/1616 ,  C10L1/198 ,  C10L1/1981 ,  C10L1/238 ,  C10L1/2383 ,  C10L1/2387 ,  C10L1/285 ,  C10L10/18 ,  C10L2230/086 ,  C10L2270/026 ,  C10L2300/20

    摘要： A diesel fuel composition comprising a first additive (i) comprising a quaternary ammonium salt and a second additive (ii) comprising a Mannich reaction product; wherein the quaternary ammonium salt additive (i) is formed by the reaction a quaternising agent which is not an ester and a compound formed by the reaction of a hydrocarbyl-substituted acylating agent and an amine of formula (B1) or (B2): wherein R2 and R3 are the same or different alkyl, alkenyl or aryl groups having from 1 to 22 carbon atoms; X is a bond or alkylene group having from 1 to 20 carbon atoms; n is from 0 to 20; m is from 1 to 5; and R4 is hydrogen or a C1 to C22 alkyl group; and wherein the Mannich reaction product additive (ii) is the product of a Mannich reaction between: (d) an aldehyde; (e) an amine; and (f) a substituted phenol; wherein the phenol is substituted with at least one branched hydrocarbyl group having a molecular weight of between 200 and 3000.

    Fuel additives for treating internal deposits of fuel injectors
    6.
    发明授权
    Fuel additives for treating internal deposits of fuel injectors 有权

    公开(公告)号：US09873848B2

    公开(公告)日：2018-01-23

    申请号：US14958974

    申请日：2015-12-04

    申请人： Afton Chemical Corporation

    发明人： Xinggao Fang ,  Scott D. Schwab

    IPC分类号： C10L10/04 ,  F02B47/04 ,  C10L1/188

    CPC分类号： C10L10/04 ,  C10L1/1883 ,  C10L1/198 ,  C10L10/06 ,  C10L2200/0209 ,  C10L2200/0446 ,  C10L2270/026 ,  F02B47/04

    摘要： Methods for improving the injector performance, unsticking fuel injectors, and reducing an amount of alkali metal carboxylate deposits on internal components of fuel injectors. The method includes operating the diesel engine on a fuel composition comprising a major amount of diesel fuel and from about 45 to about 550 ppm by weight based on a total weight of fuel composition of a fuel additive consisting essentially of a compound of the formula wherein R is an alkyl or alkenyl group containing from 20 to 170 carbon atoms. The additive has a total acid number (TAN) ranging from about 50 to about 290 mg KOH/g. Fuel injectors of the fuel injected diesel engine have an average injector hole diameter of less than 160 μm and an average smallest clearance between injector needle and injector barrel/casing of less than about 10 μm.