Patent ID: 9174274
Filing Date: 2015-11-03
Classification: B22D,F16D

Abstract:
1. A multi-piece, sound dampened brake rotor for attachment to a vehicle wheel, the rotor comprising; a hub with a round cylindrical body with a partial closure at one end of the cylindrical body providing for attachment of the brake rotor to a vehicle wheel, and a radially outwardly extending hub flange from the cylindrical body; and an annular rotor body comprising a radially internal circumferential surface with a flange, the body extending to an external diameter with an external circumferential surface and having parallel opposing body surfaces for frictional engagement in braking of the vehicle wheel, the rotor body comprising at least one annular insert between the parallel body surfaces and constructed and arranged to provide coulomb friction damping; the hub flange and annular rotor body flange are attached to form the brake rotor and to withstand torsional forces arising from vehicle braking, in which the annular insert has a coating comprising at least one of silica, alumina, graphite with clay, silicon carbide, silicon nitride, cordierite (magnesium-iron-aluminum silicate), mullite (aluminum silicate), zirconia (zirconium oxide), phyllosilicates, or other high-temperature-resistant particles.