Drive device for the oil pump of a motor vehicle transmission
AssigneeZF Friedrichshafen AG
InventorHorst Rogner
Life of this patent
Estimating the term…
Abstract
A drive device (2) for the oil pump (6) of a motor vehicle automatic transmission, in which the oil pump (6) on the one hand can be coupled to the drive motor by way of an overrunning clutch (34) and on the other hand is drivingly connected to an auxiliary electric motor (22), which is powered by the on-board power supply of the motor vehicle. The electric motor (22) is arranged outside of the pump housing (8) and is drivingly connected to a driven pump impeller wheel (ring gear 10) that is arranged in the pump housing via a non-rotatable connection.
Claims14
A drive device for the oil pump f a motor vehicle, in particular an automatic transmission, where the oil pump on the one hand may be coupled to the drive motor by way of an overrunning clutch and on the other hand is drive-connected to an auxiliary electric motor powered by the on-board power system of the motor vehicle, characterized in that the electric motor (22) is arranged outside of the pump housing (8) and drive-connected to the driven pump impeller wheel (ring gear 10) arranged in the pump housing (8) via a non-rotatable drive connection.
Dependencies are inferred from the claim text.