Lightweight brake rotor with a thin, heat resistant ceramic coat

Details Lightweight brake rotor with a thin, heat resistant ceramic coat Lightweight brake rotor with a thin, heat resistant ceramic coat

1991-07-29

1993-07-06

Oberleitner, Robert J.

Brakes

Elements

Brake wheels

188264AA, 188264G, 192107M, 428335, 428469, 428472, 428701, F16D 6510

Patent

active

052245721

ABSTRACT:
A low temperature light weight brake rotor including an aluminum rotor having an inner section integrally formed with an outer section and a braking surface formed about the outer face of each section. A ceramic coating is adhered to each braking surface. The coating is of a consistent thickness of between 0.015 inch to 0.020 inch. Also, a plurality of circumferentially spaced radially spaced cooling apertures are arranged between the sections and act to vent heat away from the disc. This arrangement brings about a situation where braking temperatures of up to 2000.degree. F. are created on the ceramic coating while the temperature of the aluminum rotor is held below 260.degree. F. The coating consists of at least one of aluminum oxide, aluminum titanium and magnesium zirconate.

REFERENCES:
patent: 2255023 (1941-09-01), Eksergian
patent: 3550739 (1970-12-01), Wiltsey
patent: 3584718 (1971-06-01), Schiefer et al.
patent: 4052530 (1977-10-01), Fonzi
patent: 4180622 (1979-12-01), Burkhard et al.
patent: 4290510 (1981-09-01), Warren
patent: 4411960 (1983-10-01), Mizuhara
patent: 4544607 (1985-10-01), Kaneno et al.
patent: 4770930 (1988-09-01), Wrenn, Jr. et al.
patent: 5080977 (1992-01-01), Zaplatynsky

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