Torque converter with turbine mass absorber
AssigneeSchaeffler Technologies AG & Co. KG
InventorsMichael G. Swank, Patrick Lindemann
Life of this patent
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Abstract
A torque converter having a first damper stage, a second damper stage, a floating flange torsionally connecting the first and second damper stages, an inertia element, and a tuned torsion damper. The torsion damper connects the inertia element and the flange. In a preferred embodiment, the inertia element is a turbine. In one embodiment, the first damper stage is a radially outer damper stage and the second damper stage is a radially inner damper stage. In another embodiment, the torsion damper generates a friction torque when rotated.
Claims22
A torque converter comprising:
- a first damper stage;
- a second damper stage;
- a floating flange torsionally connecting said first and second damper stages;
- an inertia element;
- and
- a tuned torsion damper, wherein said torsion damper connects said inertia element and said flange.
A torque converter comprising:
- a radially outer first damper stage;
- a radially inner second damper stage;
- a floating flange with a first axially offset portion, said flange torsionally connecting said first and second damper stages;
- a turbine;
- and
- a torsionally elastic plate with a linear zero torque transition and a second axially offset portion rigidly connected to said turbine and said flange, wherein said first offset portion is more axially offset than said second offset portion and wherein contact between said first and second offset portions generates a friction torque when said torsion damper is rotated.
A method of operating a torque converter comprising the steps of:
- receiving a torque into a first damper stage;
- transmitting said torque from said first damper stage to a floating flange;
- transmitting said torque from said floating flange to a second damper stage;
- and,
- connecting an inertia element to the flange through a tuned torsion damper to suppress a resonance of said flange.
Dependencies are inferred from the claim text.