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Robust Oil Pump For Electric, Hybrid and Fuel Cell Vehicle Applications Disclosure Number: IPCOM000029457D
Publication Date: 2004-Jun-29

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Lubrication of gears and bearings in a planetary gearbox or transmission generally requires an oil pump to overcome centrifugal force and supply oil to the centerline of the rotating components. Mechanically driven oil pumps are commonly used in the planetary automatic transmissions and also in the internal combustion engines of conventional vehicles. These pumps operate continuously and therefore consume energy continuously.