Method of operating a direct injection spark-ignited engine with a fuel composition
    1.
    发明授权
    Method of operating a direct injection spark-ignited engine with a fuel composition 有权
    用燃料组合物操作直喷式火花点火发动机的方法

    公开(公告)号:US07704289B2

    公开(公告)日:2010-04-27

    申请号:US11225283

    申请日:2005-09-13

    IPC分类号: C10L1/18 C10L1/22

    摘要: The present invention is directed to a method to clean up or keep clean the fuel system of a direct injection spark-ignited engine by operating the engine with a fuel composition that includes a liquid fuel and a fuel additive composition. The fuel additive composition useful in the present invention has at least one nitrogen-containing dispersant and optionally a fluidizer where the dispersant has a specific lipophilic parameter and the dispersant or the dispersant and the fluidizer have a specific hydrophilic-lipophilic parameter, the dispersant provides about 0.15 to about 50 ppm by weight nitrogen in the fuel composition, and the fluidizer and/or the dispersant provide about 10 to about 10,000 ppm by weight active components in the fuel composition. The method of the present invention is effective in controlling deposits in fuel injectors and combustion chambers of a direct injection spark-ignited engine.

    摘要翻译: 本发明涉及通过用包括液体燃料和燃料添加剂组合物的燃料组合物操作发动机来清理或保持直接喷射火花点火发动机的燃料系统的方法。 可用于本发明的燃料添加剂组合物具有至少一种含氮分散剂和任选的流化器,其中分散剂具有特定的亲油参数,分散剂或分散剂和流化器具有特定的亲水亲油参数,分散剂提供约 在燃料组合物中为0.15至约50重量ppm的氮气,并且流化器和/或分散剂在燃料组合物中提供约10至约10,000重量ppm的活性组分。 本发明的方法有效地控制了直喷式火花点火发动机的燃料喷射器和燃烧室中的沉积物。

    Fuel additive compositions and fuel compositions containing detergents and fluidizers
    2.
    发明授权
    Fuel additive compositions and fuel compositions containing detergents and fluidizers 有权
    含有洗涤剂和流化剂的燃料添加剂组合物和燃料组合物

    公开(公告)号:US06458172B1

    公开(公告)日:2002-10-01

    申请号:US09518762

    申请日:2000-03-03

    IPC分类号: C10L118

    摘要: The present invention is directed to fuel additive compositions of detergents combined with fluidizers and to hydrocarbon fuel compositions containing these fuel additive compositions. The fuel additive compositions of the present invention combine a Mannich detergent, formed from reaction of an alkylphenol with an aldehyde and an amine, with a fluidizer that can be a polyetheramine or a polyether or a mixture thereof and, optionally, with a succinimide detergent. Fuel compositions containing these fuel additive compositions are very effective in reducing intake valve deposits in gasoline fueled engines, especially when the weight ratio of detergent(s) to fluidizer(s) is about 1:1 on an actives basis.

    摘要翻译: 本发明涉及与流化器和含有这些燃料添加剂组合物的烃燃料组合物组合的洗涤剂的燃料添加剂组合物。本发明的燃料添加剂组合物将由烷基酚与醛和胺的反应形成的曼尼希洗涤剂 具有可以是聚醚胺或聚醚或其混合物的流化剂,以及任选的琥珀酰亚胺洗涤剂。含有这些燃料添加剂组合物的燃料组合物在减少汽油助燃发动机中的进气阀沉积方面非常有效,特别是当重量比 的洗涤剂与流化剂的摩尔比在活性基础上为约1:1。