Oil pump driving device
AssigneeNtn Corporation
InventorsMasahiro KAWAI, Koji SATO
Life of this patent
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Abstract
An oil pump driving device of which the oil pump can be driven by either of an engine and an electric motor, and which is short in axial dimension. The oil pump driving device includes a first one-way clutch for transmitting motive power from the engine only in one direction, and a second one-way clutch for transmitting motive power from the electric motor only in the above one direction. The first one-way clutch is disposed within an opening formed in a partition wall of a transmission case. The oil pump includes a rotor having an inner peripheral portion defining a hollow space. The second one-way clutch is disposed inside of the inner peripheral portion of the rotor.
Claims6
An oil pump driving device comprising:
- a single oil pump including a rotor configured to receive motive power;
- a first one-way clutch configured to transmit motive power from an engine only in one direction;
- a second one-way clutch configured to transmit motive power from an electric motor only in said one, direction;
- and
- a transmission case having a partition wall formed with an opening, wherein:
- the first one-way clutch is disposed within the opening of the transmission case;
- the rotor has an inner peripheral portion defining a hollow space;
- the second one-way clutch is disposed inside of the inner peripheral portion of the rotor;
- and
- the transmission case is coupled to the oil pump.
Dependencies are inferred from the claim text.