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    METHOD AND USE FOR THE PREVENTION OF FUEL INJECTOR DEPOSITS
    31.
    发明申请
    METHOD AND USE FOR THE PREVENTION OF FUEL INJECTOR DEPOSITS 审中-公开
    用于预防燃料注射器沉积物的方法和用途

    公开(公告)号：US20080060608A1

    公开(公告)日：2008-03-13

    申请号：US11846982

    申请日：2007-08-29

    Applicant: Angela Priscilla Breakspear ,  Rinaldo Caprotti

    Inventor： Angela Priscilla Breakspear ,  Rinaldo Caprotti

    IPC: F02B77/04

    CPC classification number: C10L1/2222 ,  C10L1/14 ,  C10L1/1881 ,  C10L10/02 ,  C10L10/04 ,  C10L10/06 ,  C10L10/18 ,  F02B3/06 ,  F02M25/00 ,  F02M27/02 ,  F02M61/1846 ,  F02M65/007

    Abstract: A method of substantially removing, or reducing the occurrence of, injector deposits in a diesel engine operated using a diesel fuel containing a minor amount of a metal-containing species is disclosed. The method comprises adding to the diesel fuel a salt formed by the reaction of a carboxylic acid with di-n-butylamine or tri-n-butylamine, wherein the diesel engine is equipped with fuel injectors having a plurality of spray-holes, each spray-hole having an inlet and an outlet, and wherein the fuel injectors have one or more of the following characteristics: (i) spray-holes which are tapered such that the inlet diameter of the spray-holes is eater than the outlet diameter; (ii) spray-holes having an outlet diameter of 0.10 mm or less; (iii) spray-holes where an inner edge of the inlet is rounded; (iv) 6 or more spray-holes; (v) an operating tip temperature in excess of 250° C.

    Abstract translation: 公开了一种在使用含有少量含金属物质的柴油机操作的柴油发动机中基本上除去或减少了喷射器沉积物的发生的方法。 该方法包括向柴油燃料中加入通过羧酸与二正丁胺或三正丁胺反应形成的盐，其中柴油机配备有具有多个喷孔的燃料喷射器，每个喷雾 - 具有入口和出口的孔，并且其中所述燃料喷射器具有以下特征中的一个或多个：（i）喷射孔，其是锥形的，使得喷孔的入口直径比出口直径更大; （ii）出口直径为0.10mm以下的喷孔; （iii）入口内缘倒圆的喷孔; （iv）6个以上的喷孔; （v）操作尖端温度超过250℃

    Diesel fuel compositions
    32.
    发明申请
    Diesel fuel compositions 审中-公开

    公开(公告)号：US20080028672A1

    公开(公告)日：2008-02-07

    申请号：US11830563

    申请日：2007-07-30

    Applicant: Rinaldo Caprotti ,  Angela Priscilla Breakspear ,  Tushar kanti Bera ,  Jacob Emert

    Inventor： Rinaldo Caprotti ,  Angela Priscilla Breakspear ,  Tushar kanti Bera ,  Jacob Emert

    IPC: C10L1/18

    CPC classification number: C10L10/04 ,  C10L1/1826 ,  C10L1/1852 ,  C10L1/1855 ,  C10L1/191 ,  C10L1/198 ,  C10L1/1981 ,  C10L1/1985 ,  C10L10/06

    Abstract: A diesel fuel composition made up of a major amount of a diesel fuel, a minor amount of at least one metallic species and a minor amount of a detergent additive is disclosed. The detergent additive includes a compound of formula: wherein:each Ar independently represents an aromatic moiety having 0 to 3 substituents selected from the group consisting of alkyl alkoxy, alkoxyalkyl, hydroxy, hydroxyalkyl, halo and combinations thereof or additionally, in the case of formula II, acyloxy, acyloxyalkyl, aryloxy, aryloxy alkyl, halo and combinations thereof, each L is independently a linking moiety comprising a carbon-carbon single bond or a linking group;each Y is independently a moiety of the formula H(O(CR2)n)yX—, wherein X is selected from the group consisting of (CR′2)2, O and S; R and R′ are each independently selected from H, C1 to C6 alkyl and aryl; z is 1 to 10; n is 0 to 10 when X is (CR′2)7, and 2 to 10 when X is O or S; and y is 1 to 30; each Y′ is independently a moiety of the formula Z(O(CR2)n)yX—, wherein X is selected from the group consisting of (CR′2)2, O and S; R and R′ are each independently selected from H, C1 to C6 alkyl and aryl; z is 1 to 10; n is 0 to 10 when X is (CR′2)z, and 2 to 10 when X is O or S; y is 1 to 30; Z is H, an acyl group, an alkyl group or an aryl group;each a is independently 0 to 3, with the proviso that in formula (I), at least one Ar moiety bears at least one group Y; and with the proviso that in formula (II), at least one Ar moiety bears at least one group Y′ in which Z is not H; and m is 1 to 100.

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