Powder-lubricated damper with wavy damper pads

Details Powder-lubricated damper with wavy damper pads Powder-lubricated damper with wavy damper pads

1990-10-22

1993-04-27

Oberleitner, Robert J.

Brakes

Elements

Cooling and lubricating

188264E, 188 711, 188 715, 384 99, 384535, 384581, 384406, F16D 6578, F16D 5500

Patent

active

052053849

ABSTRACT:
The damper arrangement is operated in high temperature applications, such as load and speed environments such as found in turboengines. The damper arrangement includes damper pads which are laterally urged against damping elements forming a shearing zone therebetween. The shearing zone is lubricated with solid dry powder lubricant. The damper pads include a circumferential wave or a multi-partial arc configuration formed by radial slots with inwardly tapering radial bevels and lateral bevels adjacent to the radial slots to enhance the circulation of the powder lubricant in response to nutating motion between the damper pad and the damper element.

REFERENCES:
patent: 2214104 (1940-09-01), Hildabolt et al.
patent: 2301756 (1942-11-01), Shutt
patent: 3366211 (1968-01-01), May
patent: 3907073 (1975-09-01), Harrison
patent: 4027755 (1977-06-01), Evans et al.
patent: 4028973 (1977-06-01), Bogdanski et al.
patent: 4088078 (1978-06-01), Noble
patent: 4296976 (1987-10-01), Heshmat
patent: 4379066 (1983-04-01), Small, Jr.
patent: 4483422 (1984-11-01), Cory
patent: 4503952 (1985-03-01), Hesse
patent: 4694530 (1987-09-01), Foggini

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