Bearings – Rotary bearing – Fluid bearing
Patent
1988-05-20
1989-06-06
Footland, Lenard A.
Bearings
Rotary bearing
Fluid bearing
384369, 384448, F16C 3206
Patent
active
048366935
ABSTRACT:
An intermittently assisted hydrostatic bearing (10) for a hydraulic apparatus having a rotatable surface which is periodically assisted from a pressure balance of less than 100% to a pressure balance greater than 100% pressure balance includes a pressurized fluid supply source (28) for supplying a pressurized fluid, a supply channel (30, 31, 32 and 34) for supplying pressurized fluid from the pressurized fluid supply source to a point (36) between cooperating opposed bearing surfaces (24) and a pressure producing device (48) which communicates with the fluid supply channel and in response to a command signal causes the hydrostatic bearing to attain a greater than 100% pressure balance. The invention further includes a check valve (60) positioned in the supply channel (32) to prevent the reverse flow of fluid into the pressurized fluid supply source (28).
REFERENCES:
patent: 611984 (1898-10-01), Wright
patent: 3181638 (1965-05-01), Cockerell
patent: 3266854 (1963-11-01), Aller
patent: 3271086 (1966-09-01), Deffrenne
patent: 4113325 (1978-09-01), Miller
patent: 4114959 (1978-09-01), Christ
patent: 4351574 (1982-09-01), Furukawa et al.
patent: 4368930 (1983-01-01), Duchaine
patent: 4568203 (1986-02-01), Eddy
patent: 4690572 (1987-09-01), Sasaki
McGraw-Hill Encyclopedia of Science and Technology, Copyright 1971, vol. 2, pp. 127-128.
Footland Lenard A.
Sundstrand Corp.
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