Fuel and lubricant compositions for octane requirement reduction
    32.
    发明授权
    Fuel and lubricant compositions for octane requirement reduction 失效
    用于减少辛烷值的燃料和润滑剂组合物

    公开(公告)号:US4435187A

    公开(公告)日:1984-03-06

    申请号:US336221

    申请日:1981-12-31

    CPC classification number: C10L10/10 C10L1/232 C10L1/2425 C10L10/04

    Abstract: The reduction of octane requirement in a spark-ignited, internal combustion engine is achieved by introducing, with the combustion intake charge, a fuel and/or lubricant composition containing an octane requirement reduction amount of a substituted urea compound represented by the formula: ##STR1## in which X is an oxygen or sulfur atom, R.sub.1 and R.sub.3 are hydrocarbyl radicals having from 1 to 3 carbon atoms, and R.sub.2 is selected from the group consisting of ##STR2## Particularly useful as ORR agents are: (a) 4-[N-(2,4-xylyl) carbamoyl] morpholine;(b) 1-[N-(2,4-xylyl) carbamoyl] piperidine; and(c) 1-(2-pyridyl)-3-(3,4-xylyl)-2-thiourea.

    Abstract translation: 火花点燃的内燃机的辛烷值要求的降低是通过在燃烧进气装置中引入含有辛烷值要求量减少量的由下式表示的取代脲化合物的燃料和/或润滑剂组合物来实现的:其中X是氧或硫原子,R 1和R 3是具有1至3个碳原子的烃基,R 2选自由以下组成的组:作为ORR剂特别有用的是:(a)4- [ N-(2,4-二甲苯基)氨基甲酰基]吗啉; (b)1- [N-(2,4-二甲苯基)氨基甲酰基]哌啶; 和(c)1-(2-吡啶基)-3-(3,4-二甲苯基)-2-硫脲。

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