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Solid state lift for micrometering in a fuel injector

United States Patent

April 2, 2002
View the Complete Patent at the US Patent & Trademark Office
A fuel injector performs main fuel injection by raising fuel pressure in a nozzle chamber to lift a check valve member to a fully open position, and performs preinjection or microinjection by operating a solid state motor to lift the check valve member a much smaller distance.
Milam; David M. (Metamora, IL), Carroll; Thomas S. (Peoria, IL), Lee; Chien-Chang (Rochester Hills, MI), Miller; Charles R. (Metamora, IL)
Caterpillar Inc. (Peoria, IL)
09/ 593,625
June 9, 2000
This invention was made with Government support under Contract No. DE-FC05-970R22605 awarded by the Department of Energy. The Government has certain rights in this invention.