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US 11,548,317 B2Granted
Brake rotor and lightweight wheel assembly
AssigneeGM Global Technology Operations LLC
InventorsHenry Zhan, Jianfeng Wang, Congjie Wang, Ming Liu, Anil K. Sachdev
Life of this patent
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Abstract
A brake rotor includes a friction portion, a hat portion axially extending from the friction portion and including a top face that is axially displaced from the friction portion and a side wall that extends from the friction portion to the top face, and a nose portion which extends axially from the top face of the hat portion away from the friction portion.
Claims13
A brake rotor comprising:
- a friction portion;
- a hat portion axially extending from the friction portion and including a top face that is axially displaced from the friction portion and a side wall that extends from the friction portion to the top face;
- and
- a nose portion which extends axially from the top face of the hat portion away from the friction portion,
- wherein the hat portion includes a plurality of drainage slots on a bottom surface opposite the top face that faces toward the friction portion.
2 more elements
A wheel assembly comprising:
- a wheel including a first plurality of through holes;
- an axle bearing including a second plurality of through holes;
- a plurality of fasteners;
- a brake rotor including:
- a friction portion;
- a hat portion axially extending from the friction portion and including a top face that is axially displaced from the friction portion and a side wall that extends from the friction portion to the top face, wherein the top portion includes a third plurality of through holes;
- and
- a nose portion which extends axially from the top face of the hat portion away from the friction portion;
- and
- a plurality of wheel studs each extending successively through a corresponding one of the second plurality of through holes in the axle bearing;
- a corresponding one of the third plurality of through holes in the brake rotor, a corresponding one of the first plurality of through holes in the wheel, and threadably engaging a corresponding one of the plurality of fasteners,
- wherein the hat portion includes a plurality of drainage slots on a bottom surface disposed opposite the top face that faces toward the friction portion and is configured to direct a fluid away from the wheel.
9 more elements
Dependencies are inferred from the claim text.