Flex plate to damper connection on hybrid powertrain
AssigneeSchaeffler Technologies AG & Co. KG
InventorMatthew A. Payne
Life of this patent
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Abstract
An engine damper includes a drive disc having a plurality of studs circumferentially arranged to be received in a flex plate and a driven disc connected to the drive disc by a resilient member. The driven disc defines a plurality of circumferentially arranged first holes arranged in a first pattern. A hub is configured to non-rotatably connect to a shaft. The hub defines a plurality of second holes circumferentially arranged in a second pattern that corresponds to the first pattern. Connectors are disposed in the first and second holes to connect the hub to the driven disc.
Claims20
An engine damper comprising:
- a drive disc connectable to a flex plate;
- a driven disc connected to the drive disc by a resilient member, the driven disc defining a plurality of first holes circumferentially arranged in a first pattern;
- a hub configured to non-rotatably connect to a shaft, the hub defining a plurality of second holes circumferentially arranged in a second pattern that corresponds to the first pattern such that the first holes are aligned with the second holes when the hub and the driven disc are connected;
- and
- connectors disposed in the first and second holes to connect the hub to the driven disc;
- wherein the drive disc defines a plurality of third holes circumferentially arranged in a third pattern that corresponds to the first pattern.
A hybrid module comprising:
- an electric machine including a shaft having a first end and a second end;
- a torque converter operably coupled to the second end of the shaft;
- and
- a damper configured to connect an engine to the electric machine, the damper including:
- a drive disc configured to connect to the engine,
- a driven disc connected to the drive disc by a resilient member, the driven disc defining a plurality of circumferentially arranged first holes,
- a hub non-rotatably connected to the first end of the shaft, the hub defining a plurality of second holes circumferentially arranged to align with the first holes, and
- connectors disposed in the first and second holes to connect the hub to the driven disc.
A method of assembling an engine damper to an electric machine, the method comprising:
- installing a hub of an engine damper on a shaft of an electric machine, wherein the hub defines a plurality of first holes circumferentially arranged in a first pattern;
- placing a driven disc of the engine damper on the hub such that a plurality of second holes of the driven disc are aligned with the first holes;
- and
- inserting connectors through the first and second holes to secure the driven disc to the hub.
An engine damper comprising:
- a drive disc connectable to a flex plate;
- a driven disc connected to the drive disc by a resilient member, the driven disc defining a plurality of first holes circumferentially arranged in a first pattern;
- a hub configured to non-rotatably connect to a shaft, the hub defining a plurality of second holes circumferentially arranged in a second pattern that corresponds to the first pattern such that the first holes are aligned with the second holes when the hub and the driven disc are connected;
- connectors disposed in the first and second holes to connect the hub to the driven disc;
- and
- a pilot projecting from the drive disc and configured to engage with a crankshaft of an engine to center the engine damper.
Dependencies are inferred from the claim text.