Doubled vented cooling vane disk brake rotor
AssigneeGeneral Motors Corporation
InventorSrikanth Ranganathan
Life of this patent
Estimating the term…
Abstract
A brake rotor has double annular vents with cooling vanes connecting inboard and outboard cheeks of a rotor to a central support ring. Each of the annular vents provides separate passages for cooling the adjacent cheek of the brake rotor and separate inlets are provided for the dual vents from opposite sides of the central support ring. Aligned and staggered vane embodiments and parallel and angled passage embodiments are disclosed. The dual vents increase both the flow rate and the surface area for heat transmission and flow the air closer to the heated cheek surfaces. The staggered vanes improve stiffness and the slanted passages have potential stiffness and heat sink advantages.
Claims9
A disk brake rotor for an automotive vehicle, the rotor having a hub rotatable on an axis, an annular brake disk carried by the hub, the disk including a central support ring fixed to the hub, and inboard and outboard cheeks each connected across annular vents by a ring of angularly spaced vanes extending from inner to outer edges of the disk and defining a plurality of angularly spaced generally radial air passages between the cheeks and the support ring and extending from the inner to outer edges of the disk.
Dependencies are inferred from the claim text.