Onan Corporation

Robert P Koziara

Daniel A Norrick

Eugene G Shanks

Mark S Lent

Stanley E Data

Thomas K Rose

Patrick A O'Gorman

An auxiliary power system includes an engine balance system, an integrated alternator/starter, a thermal management system, noise-vibration-harshness control system, an emissions/fuel economy system, an APU master control unit, and a vehicle control system. The thermal management system includes an alternator/starter cooling assembly for cooling an alternator/starter in the auxiliary power system, an engine lubricating/cooling assembly for cooling an engine in the auxiliary power system, an assembly for collecting a cooling material after passing through the alternator/starter and the engine, an assembly for scavenging the cooling material from the collecting assembly to a first heat exchanger, an assembly for circulating the cooling material back to the alternator/starter and the engine, and a second heat exchanger which is disposed on the circulating assembly between the first heat exchanger and an alternator/starter inlet.

Auxiliary power unit for hybrid electric vehicle

An auxiliary power system includes an engine balance system, an integrated alternator/starter, a thermal management system, noise-vibration-harshness control system, an emissions/fuel economy system, an APU master control unit, and a vehicle control system.

Auxiliary power unit for a hybrid electric vehicle

Auxiliary power unit for a hybrid electrical vehicle

A multiple-cylinder combustion engine includes a counter rotating system eliminating any vibratory pitch, yaw, and roll torques. The net angular momentum of all rotating parts in the engine is equal to zero. The multiple-cylinder combustion engine activates or deactivates the number of the cylinders without any additional pitch, yaw, and roll torques.

Engine efficiency improvement system

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Lake Elmo, MN, United States of America

Robert P Koziara