Staged injection of an emulsified diesel fuel into a combustion

Details Staged injection of an emulsified diesel fuel into a combustion Staged injection of an emulsified diesel fuel into a combustion

1998-02-18

2000-10-03

Yuen, Henry C.

Internal-combustion engines

Water and hydrocarbon

123 25C, 123299, F02B 4700

Patent

active

061257966

ABSTRACT:
A method of operating a diesel engine which overcomes problems encountered during use of a low cetane fuel with long ignition delays is disclosed. The method provides for a staged injection of an emulsified diesel fuel into the combustion chamber of the diesel engine. In particular, the method includes the steps of (A) injecting a pilot volume of an emulsified diesel fuel into a combustion chamber of the diesel engine, wherein the emulsified diesel fuel includes water and diesel fuel, (B) compressing the pilot volume of the emulsified diesel fuel within the combustion chamber during a compression stroke of the diesel engine, and (C) injecting a main volume of the emulsified diesel fuel into the combustion chamber of the diesel engine, whereby heat generated by compression of the pilot volume of the emulsified diesel fuel causes the pilot volume of the emulsified diesel fuel to combust so as to ignite the main volume of the emulsified diesel fuel.

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