Torsional vibration damper
AssigneeFirma Carl Freudenberg
InventorRainer H. Andra
Life of this patent
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Abstract
A torsional vibration damper has a longitudinal axis of rotation about which an inertial damping mass is disposed. The inertial damping mass, which may be in the form of a ring, surrounds the periphery of a central hub connected to a shaft to be damped. The hub is connected to the damping mass by an elastic ring disposed in the space between the damping mass and hub to connect the damping mass and hub. The elastic ring may be formed of rubber or other suitable elastomeric material, and has a longitudinal profile that varies along the circumferential direction of the elastic ring.
Claims9
A torsional vibration damper having a longitudinal axis of rotation comprising:
- (a) a central hub having means for connection to a part to be damped;
- (b) an inertial damping mass spaced from the central hub to form a longitudinal extending gap surrounding the central hub;
- (c) an elastic ring disposed in said gap in adherent contact between the central hub and the inertial damping mass for connecting the central hub to the inertial damping mass, said elastic ring having
- (i) successive subsections along the circumferential direction of the elastic ring, each of said successive subsections having a shape that deviates from the shape of adjacent subsections, with at least one of said subsections uniformly merging into adjacent subsections and being spaced at a different distance from the longitudinal axis of rotation than the distance of other subsections from the longitudinal axis;
- and
- (ii) a longitudinal profile that varies along the circumferential direction of the ring, said longitudinal profile having a bell curve shape outwardly projecting from at least one longitudinal plane of the torsional vibration damper, said bell curve shape having a peak height that varies in the circumferential direction of the elastic ring.
Dependencies are inferred from the claim text.