Hybrid power transfer module

1 . A hybrid power transfer module including a drive shaft, a rotor hub, and an engine clutch defined by an annular shape having an inner circumference and an outer circumference, the drive shaft being coupled with the inner circumference of the engine clutch, comprising:

a drive plate arranged on the outer circumference of the engine clutch; and

a torsional damper, which is arranged to contact the drive plate and includes a plurality of springs; and

a rotor hub cover,

wherein the drive plate and the torsional damper are arranged within the rotor hub,

wherein the engine clutch is configured to transmit engine torque to the drive plate when the engine torque is applied to the engine clutch, and

wherein the rotor hub and the rotor hub cover each include a plurality of engagement portions configured to receive the springs of the torsional damper.

2 . The hybrid power transfer module of claim 1 , wherein the drive plate is configured to transmit engine torque received from the engine clutch to the torsional damper when engine torque is applied to the engine clutch.

3 . The hybrid power transfer module of claim 2 , wherein the drive plate has a plurality of hooks that project radially outward to transmit engine torque to the torsional damper.

4 . The hybrid power transfer module of claim 1 , wherein the engine clutch is a one-way clutch.

5 . The hybrid power transfer module of claim 1 , further comprising a torque converter,

wherein the torque converter does not include a torsional damper.

6 . A hybrid power transfer module including a drive shaft, a rotor hub, and an engine clutch defined by an annular shape having an inner circumference and an outer circumference, the drive shaft being coupled with the inner circumference of the engine clutch, comprising:

a drive plate arranged on the outer circumference of the engine clutch;

a torsional damper, which is arranged to contact the drive plate and includes a plurality of springs; and

an oil passage in fluid communication with the engine clutch and/or the torsional damper,

wherein the drive plate and the torsional damper are arranged within the rotor hub,

wherein the engine clutch is configured to transmit engine torque to the drive plate when the engine torque is applied to the engine clutch,

wherein the oil passage includes a first oil passage located radially inward of the engine clutch, and

wherein the oil passage includes a second oil passage located radially outward of the engine clutch.

7 . The hybrid power transfer module of claim 6 , wherein the first oil passage is defined in the drive shaft.

8 . The hybrid power transfer module of claim 6 , wherein the second oil passage is defined in the rotor hub cover or the rotor hub.

9 . A hybrid power transfer module comprising:

a drive shaft for transmitting engine torque;

a rotor hub in which a rotor of a motor is mounted;

an engine clutch connected to the drive shaft; and

a torsional damper disposed between the engine clutch and the rotor hub,

wherein the torsional damper includes a drive plate, one or more springs, and a rotor hub cover, and

wherein the rotor hub and the rotor hub cover each includes a plurality of engagement portions configured to receive the springs of the torsional damper.

10 . The hybrid power transfer module of claim 9 , wherein the engine clutch includes:

a power input portion for inputting power from the drive shaft; and

a power output portion for outputting power during operation of the engine clutch;

wherein the drive plate is coupled to the power output portion.

11 . The hybrid power transfer module of claim 10 , wherein the engine clutch includes a one-way clutch, the power input portion includes an inner race of the one-way clutch, and the power output portion includes an outer race of the one-way clutch.