Torque transmission device
AssigneeAktiebolaget Skf
InventorMarco Schmitt
Life of this patent
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Abstract
A torque transmission device includes a first shaft is coaxially borne relative to a second shaft via at least one roller bearing. An adjusting device adjusts the amount of torque transmitted from the first shaft to the second shaft by changing the internal bearing friction experienced by the at least one roller bearing. In one embodiment, the adjusting device causes one ring of the at least one roller bearing to axially displace relative to a second ring of the at least one roller bearing, thereby changing the amount of bearing friction experienced by roller bodies disposed between the first and second rings and thus the amount of torque transmitted from the first shaft to the second shaft.
Claims20
A torque transmission device comprising:
- a first shaft and a second shaft,
- at least one roller bearing coaxially bearing the first shaft relative to the second shaft and
- an adjusting device configured to vary an axial pressure force acting on the at least one roller bearing so as to adjust an amount of torque transmitted from the first shaft to the second shaft.
An apparatus comprising:
- an exhaust gas turbine, and
- a torque transmission device including a first shaft and a second shaft, at least one roller bearing coaxially bearing the first shaft relative to the second shaft, and an adjusting device configured to vary an axial pressure force acting on the at least one roller bearing so as to adjust an amount of torque transmitted from the first shaft to the second shaft,
- wherein the exhaust gas turbine directly or indirectly drives the first shaft of the torque transmission device.
A method for changing an amount of torque transmitted from a first shaft rotatably supported relative to a second shaft via at least one roller bearing, comprising:
- controllably changing an internal bearing friction of the at least one roller bearing, wherein the amount of torque transmitted from the first shaft to the second shaft directly depends on the amount of internal bearing friction experienced by the at least one roller bearing.
An apparatus comprising:
- a hollow driving shaft,
- a driven shaft disposed at least partially within the hollow driving shaft, and
- at least one roller bearing coaxially supporting the driving shaft relative to the driven shaft, and
- a controller configured to vary a bearing friction experienced by the at least one roller bearing so as to change an amount of torque transmitted by the at least one roller bearing from the hollow driving shaft to the driven shaft.
Dependencies are inferred from the claim text.