Patent ID: 7950505

Claim:
A mechanically ventilated disc brake rotor comprising: A rotor having a hub rotatable on an axis, an annular outboard brake disc carried by the hub and connected with inboard annular brake disc with a series of inclined fixed vanes distributed radially around the rotor to form air vent channels or air vent passages wherein; A series of inclined fixed vanes distributed radially around the rotor between the outboard and inboard brake disks forming a series of air flow passages between each adjacent pair of fixed vanes, wherein the air flow passages have an inlet and an outlet areas; A centrifugal fan impeller attached to the hub in between the inboard and outboard brake disc space with a single direction rotation ball bearing or a clutch bearing to allow the centrifugal fan impeller to rotate freely at a one-way direction wherein; The single direction bearing inner race is attached to the brake rotor hub while the outer race is attached to the centrifugal fan impeller which allows it to rotate at a one-way direction inline with vehicle forward moving direction and the bearing is provided with a weather seal to prevent the bearing from losing its lubricant and/or being contaminated with dirt; And an end cap provided to house the centrifugal fan impeller and the single direction bearing in the brake rotor hub attached with mounting fasteners.