Assembly for damping torsional vibrations
AssigneeLuk Lamellen und Kupplungsbau GmbH
InventorWolfgang Reik
Life of this patent
Estimating the term…
Abstract
An assembly for damping torsional vibrations in the power train between the crankshaft of the engine and the input shaft of the change-speed transmission in a motor vehicle has two flywheels which are rotatable relative to each other against the opposition of a damper system which is at least partially confined in an annular chamber containing a supply of viscous fluid. One flywheel is connected to the crankshaft and the other flywheel is connectable with the input shaft of the transmission by a friction clutch. The damper system can include a hydraulic damper, a mechanical damper and one or more friction generating devices.
Claims18
An assembly for damping torsional vibrations in the power train of a vehicle wherein torque is transmitted between the output element of an engine and the input element of a transmission, comprising a flywheel including first and second components which are rotatable relative to each other, one of which is connectable to the output element of the engine and the other of which is connectable with the input element of the transmission by way of a clutch, such as a friction clutch;
- damper means having means for opposing rotation of said components relative to each other;
- and means for confining at least a portion of said damper means, said confining means having an annular chamber arranged to be at least partially filled with a viscous fluid, and said confining means including a membrane-like member at one side of said chamber, said member being elastic in the axial direction of said flywheel and extending substantially radially of said flywheel, said confining means further comprising an annular back support for a portion at least of said member and said member being disposed between said chamber and said back support.
An assembly for damping torsional vibrations in the power train of a vehicle wherein torque is transmitted between the output element of an engine and the input element of a transmission, comprising a flywheel including first and second components which are rotatable relative to each other, one of which is connectable to the output element of the engine and the other of which is connectable with the input element of the transmission by way of a clutch, such as a friction clutch;
- damper means having means for opposing rotation of said components relative to each other;
- and means for confining at least a portion of said damper means, said confining means having an annular chamber arranged to be at least partially filled with a viscous fluid, and said confining means including a membrane-like member at one side of said camber, said member being elastic and undergoing deformation in the axial direction of the flywheel under the action of centrifugal force upon the viscous fluid in said chamber in response to rotation of said flywheel.
An assembly for damping torsional vibrations in the power train of a vehicle wherein torque is transmitted between the output element of an engine and the input element of a transmission, comprising a flywheel including first and second components which are rotatable relative to each other, one of which is connectable to the output element of the engine and the other of which is connectable with the input element of the transmission by way of a clutch, such as a friction clutch;
- damper means having means for opposing rotation of said components relative to each other;
- means for confining at a least a portion of said damper means, said confining means having an annular chamber arranged to be at least partially filled with a viscous fluid, and said confining means including a membrane-like member at one side of said chamber, said member being elastically deformable in the axial direction of said flywheel and being installed in axially stressed condition;
- and friction generating means operating between said components and including energy storing means, said energy storing means including said member.
An assembly for damping torsional vibrations in the power train of a vehicle wherein torque is transmitted between the output element of an engine and the input element of a transmission, comprising a flywheel including first and second components which are rotatable relative to each other, one of which is connectable to the output element of the engine and the other of which is connectable with the input element of the transmission by way of a clutch, such as a friction clutch;
- damper means having means for opposing rotation of said components relative to each other;
- means for confining at least a portion of said damper means, said confining means having annular chamber arranged to be at least partially filled with a viscous fluid and said confining means including a membrane-like member at one side of said chamber, said member being elastically deformable and being installed in axially stressed condition;
- and means for changing the stressing of said member in response to changing rotational speed of said flywheel.
Dependencies are inferred from the claim text.