Friction damping ring for a disc brake rotor and rotor employing the same
AssigneeFord Global Technologies, LLC
InventorYuri Anatoly Karpenko
Life of this patent
Estimating the term…
Abstract
A disc brake rotor for a motor vehicle may include a substantially disc shaped body portion, a groove formed in a peripheral edge of the body portion, and a damping ring disposed in the groove. The damping ring may include a tube portion having an inner surface and an outer surface that is in what in some cases may be stationary contact with the groove, a cable including a plurality of wires that each have a surface in sliding contact with surfaces of adjacent wires of the plurality of wires with the at least one cable being disposed in the tube portion to contact the inner surface, and a plurality of dampening particles disposed in the tube portion in contact with the cable and the inner surface.
Claims19
A disc brake rotor for a motor vehicle, the disc brake rotor comprising:
- a substantially disc shaped body portion;
- a groove formed in a peripheral edge of the body portion;
- and
- a damping ring disposed in the groove,
- wherein the damping ring comprises:
- a tube portion having an inner surface and an outer surface, the outer surface being in contact with the groove,
- a cable comprising a plurality of wires, each of the plurality of wires having a surface in sliding contact with surfaces of adjacent wires of the plurality of wires, wherein the at least one cable is disposed in the tube portion to contact the inner surface, and
- a plurality of dampening particles disposed in the tube portion in contact with the cable and the inner surface,
- wherein the tube portion is operably coupled to the groove via an interference fit, and
- wherein the interference fit comprises the damping ring being crimped within the groove at a predefined interval around the peripheral edge.
A disc brake assembly for a motor vehicle, the disc brake assembly comprising a rotor, a caliper and a brake pad operably coupled to the caliper to selectively provide frictional contact with the rotor, wherein the rotor comprises:
- a substantially disc shaped body portion;
- a groove formed in a peripheral edge of the body portion;
- and
- a damping ring disposed in the groove,
- wherein the damping ring comprises:
- a tube portion having an inner surface and an outer surface, the outer surface being in contact with the groove,
- a cable comprising a plurality of wires, each of the plurality of wires having a surface in sliding contact with surfaces of adjacent wires of the plurality of wires, wherein the at least one cable is disposed in the tube portion to contact the inner surface, and
- a plurality of dampening particles disposed in the tube portion in contact with the cable and the inner surface,
- wherein the groove has a depth and a width that are substantially equal, and
- wherein a diameter of the tube portion is within about 2% to about 8% smaller than the depth and the width.
Dependencies are inferred from the claim text.