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Fuel lubricity additives

A lubricity and additive technology, applied in the field of fuel lubricity additives, can solve problems such as the inability to reduce engine wear

Inactive Publication Date: 2007-08-29
AFTON CHEMICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such alkanolamides are not as effective in reducing engine wear as the fuel lubricity additives of the present disclosure

Method used

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Embodiment

[0100] Several compounds were prepared using the following reaction schemes using different starting materials:

[0101]

[0102] where R is saturated or unsaturated, aromatic, branched or linear alkyl and A is OH or NH 2 . The compounds produced according to Reaction Scheme A are known to be suitable additives for improving the lubricity of gasoline and diesel fuels, and were therefore compared with the fuel lubricity additives of the present invention produced according to Scheme B.

[0103]Synthetic materials were tested for their ability to reduce friction and wear in both gasoline and diesel fuels in a high frequency reciprocating device (HFRR). The HFRR equipment and method used are as follows: A steel ball is attached to the oscillating arm assembly and matched with a steel disc specimen in the HFRR sample cell. The sample cell contained 2 ml of the fuel tested and the sample was kept in the bath at a temperature of 60°C for diesel and 25°C for gasoline. A load of...

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PUM

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Abstract

A fuel lubricity additive is disclosed comprising an imidazoline. The fuel lubricity additive may be prepared by reacting an optionally substituted organic acid with an optionally substituted polyamine. Fuel compositions are also disclosed, comprising a fuel and the fuel lubricity additive. Processes for reducing wear in an engine, for example an internal combustion engine, using the fuel lubricity additive are disclosed.

Description

technical field [0001] The present disclosure relates to fuel lubricity additives comprising imidazolines. The fuel lubricity additives are useful for improving the lubricity of fuels and reducing wear in internal combustion engines. Background technique [0002] To reduce pollution and conserve energy, automobiles are continually being designed for improved gas mileage. This effect is at least partly a result of government regulations enacted to force automakers to meet specified gas mileage. In an effort to achieve the required mileage, many cars have been downsized. However, there is a limit in this approach beyond which the car cannot accommodate a typical family. Another way to improve fuel mileage is to reduce engine wear, which in part can be attributed to engine friction. The present disclosure relates to fuel lubricity additives for gasoline and diesel fuels, and methods of reducing engine wear. [0003] The use of imidazoline derivatives in fuels is known to i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/232C10L10/08
CPCC10L1/2406C10L1/2222C10L10/08C10L1/232C10L1/2418
Inventor S·D·施沃布J·J·贝内特
Owner AFTON CHEMICAL