Fuel injection strategy for reduced cold start emission from...

Details Fuel injection strategy for reduced cold start emission from... Fuel injection strategy for reduced cold start emission from...

2007-06-26

2007-06-26

Kwon, John T. (Department: 3747)

Internal-combustion engines

Combustion chamber means having fuel injection only

Having a particular relationship between injection and...

C123S299000

Reexamination Certificate

active

11240018

ABSTRACT:
A system, comprising of an engine having a cylinder therein, a fuel injector coupled to said cylinder and configured to directly inject fuel into said cylinder, a fuel system coupled to said injector, and a controller configured to control engine starting operation, wherein during a start, said fuel injector performs a first fuel injection at least partially during an exhaust stroke of said cylinder, where fuel from said first fuel injection is mixed with air inducted at least during an intake stroke following said exhaust stroke, said fuel injector performing a second fuel injection after said first fuel injection, and combusting fuel from said first and second fuel injections to perform a combustion event in said cylinder.

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Donald Stanton and Christopher Rutland, “Modeling Fuel Film Formation and Wall Interaction in Diesel Engines”, SAE Technical Paper 960628, Engine Research Center, University of Michigan—Madison.

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