Leaf-type foil thrust bearing

Details Leaf-type foil thrust bearing Leaf-type foil thrust bearing

1985-10-11

1986-07-01

Levy, Stuart S.

Bearings

Rotary bearing

Fluid bearing

384106, F16C 3206

Patent

active

045976775

ABSTRACT:
A leaf-type foil thrust bearing, such as may be employed in a high-speed, light-load application, particularly, as a thrust bearing for a turbo charger, having a significantly reduced manufacturing cost. A plurality of recesses are formed in a thrust surface of a seat member disposed opposite the bearing surface of a rotating bearing member. The recesses gradually become shallower from their forward edges to the rearward edges in the direction of rotation of the rotating members. Corrugated foils are disposed in each of the recesses, with the corrugation height of each of the foils being constant. Top foils cover the respective corrugated foils, and each of the top foils has a forward edge attached to the thrust surface adjacent the forward edges of each of the recesses.

REFERENCES:
patent: 4082375 (1978-04-01), Fortmann
patent: 4116503 (1978-09-01), Licht
patent: 4208076 (1980-06-01), Gray
patent: 4213657 (1980-07-01), Gray
patent: 4225196 (1980-09-01), Gray
patent: 4227752 (1980-10-01), Wilcock
patent: 4462700 (1984-07-01), Agriwal

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