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Mixed mode fuel injector and injection system

United States Patent

December 27, 2005
View the Complete Patent at the US Patent & Trademark Office
A fuel injector includes a homogenous charge nozzle outlet set and a conventional nozzle outlet set that are controlled respectively by first and second three way needle control valves. Each fuel injector includes first and second concentric needle valve members. One of the needle valve members moves to an open position for a homogenous charge injection event, while the other needle valve member moves to an open position for a conventional injection event. The fuel injector has the ability to operate in a homogenous charge mode with a homogenous charge spray pattern, a conventional mode with a conventional spray pattern or a mixed mode.
Stewart; Chris Lee (Normal, IL), Tian; Ye (Bloomington, IL), Wang; Lifeng (Normal, IL), Shafer; Scott F. (Morton, IL)
Caterpillar Inc (Peoria, IL)
10/ 601,451
June 23, 2003
GOVERNMENT RIGHTS This invention was made with US Government support under DE-FC05-970R22605 awarded by the Department of Energy. The government has certain rights in this invention.