Bearings – Rotary bearing – Fluid bearing
Patent
1990-03-05
1991-07-30
Hannon, Thomas R.
Bearings
Rotary bearing
Fluid bearing
384124, 384224, 384303, 384368, F16C 3206, F16C 2708, F16C 1704, F16C 3310
Patent
active
050355198
ABSTRACT:
A thrust bearing including a ring-like form plate body, and a plurality of rib members provided on the ring-like form plate body of the thrust bearing. Such a plurality of rib members may be provided on a thrust runner. The rib members cause a difference in load deformation amount in a circumferential direction according to thrust load and generate a wedge-shaped form clearance between a sliding face of the thrust bearing and a sliding face of the thrust runner. Since the wedge-shaped form clearance is formed by utilizing the load deformation, even when the thrust load becomes large, the wedge-shaped form clearance does not become narrow. The occurrence of dynamic pressure by the wedge effect and the formation of a water film can be assured, and the temperature increase between the sliding face of the thrust runner and the sliding face of the thrust bearing can be restrained.
REFERENCES:
patent: 1457081 (1923-05-01), Lieber
patent: 1684693 (1928-09-01), Bohm
patent: 2126688 (1938-08-01), Palmgren
patent: 2380179 (1945-07-01), Huber
patent: 2424028 (1947-07-01), Haeberlein
patent: 2577798 (1951-12-01), Neubauer
patent: 3565498 (1971-02-01), Leopard et al.
patent: 4639146 (1987-01-01), Yoshioka et al.
Aizawa Kooji
Hasegawa Kengo
Kawaike Kazuhiko
Nakashima Ryoichi
Nii Katsutoshi
Hannon Thomas R.
Hitachi , Ltd.
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