FUEL ADDITIVE FOR DIESEL ENGINES
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United States of America Patent
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Issued Date -
Aug 20, 2015
app pub date -
Feb 19, 2014
filing date -
Feb 19, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In accordance with the disclosure, exemplary embodiments provide a method for improving injector performance, a method for restoring power to a diesel fuel injected engine, and a method of operating a fuel injected diesel engine. The method includes combining a fuel with a reaction product derived from (i) a hydrocarbyl substituted dicarboxylic acid or anhydride, wherein the hydrocarbyl substituent has a number average molecular weight ranging from about 600 to about 800 and (ii) a polyamine includes a compound of the formula H2N—((CHR1—(CH2)n—NH)m—H, wherein R1 is hydrogen, n is 1 and m is 4, wherein a molar ratio of (i) reacted with (ii) ranges from about 1.3:1 to about 1.6:1. The reaction product, as made, contains no more than 3.0 wt. % unreacted polyamine in the reaction product based on active material in the reaction product.
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