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Engine having hydraulic and fan drive systems using a single high pressure pump

United States Patent

November 7, 2000
View the Complete Patent at the US Patent & Trademark Office
An engine comprises a hydraulic system attached to an engine housing that includes a high pressure pump and a hydraulic fluid flowing through at least one passageway. A fan drive system is also attached to the engine housing and includes a hydraulic motor and a fan which can move air over the engine. The hydraulic motor includes an inlet fluidly connected to the at least one passageway.
Bartley; Bradley E. (Manito, IL), Blass; James R. (Bloomington, IL), Gibson; Dennis H. (Chillicothe, IL)
Caterpillar Inc. (Peoria, IL)
09/ 235,360
January 21, 1999
GOVERNMENT LICENSE RIGHTS The U.S. Government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of DE-FC05-970R22605, awarded by the Department of Energy. In other words, this invention was made with Government support under DE-FC05-970R22605 awarded by the Department of Energy. The Government has certain rights in this invention.