Damper for a vehicle torque transferring assembly
AssigneeAutomotive Components Holdings, LLC
InventorsYohannes G. Haile, Thomas E. Kamrath, Rand S. Schenck, Norman Szalony
Life of this patent
Estimating the term…
Abstract
A lightweight damper for reducing noise and vibration in torque transferring assemblies that is easily assembled and cost efficient. The damper may be formed from a foam material having a density less than 1.4 lb/ft3, and includes an outer surface that is resiliently biased against the inner surface of a tubular shaft when installed. In a second embodiment, the damper is formed from a sheet of material that dissipates energy such as noises and vibrations through movement of the layers relative to each other. In third embodiment, the dampening sheet and foam damper are combined to provide a damper that dampens noises and vibrations across a large frequency range.
Claims9
A torque transferring assembly for dampening noise and vibration comprising:
- a tubular shaft for carrying a torsion load having an inner surface;
- a damper for insertion into the tubular shaft, the damper including a core and a dampening sheet resiliently biased against said inner surface and including a first end and a second end, said first end being coiled about said core to overlap said second end and providing a boundary layer therebetween, said first and second ends movable relative to each other, whereby energy is dissipated as the ends move across the boundary layer.
Dependencies are inferred from the claim text.