Coolant union with fluid actuated seal assembly

Details Coolant union with fluid actuated seal assembly Coolant union with fluid actuated seal assembly

1989-04-12

1990-12-11

Chambers, A. Michael

Fluid handling

Systems

With running joint between movable parts of system

285 98, 285101, F16L 2700, F16L 1700

Patent

active

049762826

ABSTRACT:
A rotating union including a seal assembly having a rotating seal member carried by the rotor, a non-rotating floating seal member carried by a fluid actuated assembly mounted in and keyed to the housing of the union, the fluid actuated assembly including a flexible diaphragm interposed in the fluid flow path and which is flexed responsive to fluid pressure through the union to move the non-rotating seal member into engagement with the rotating seal member, the diaphragm being unflexed in the absence of fluid pressure through the union whereby the non-rotating seal member is maintained out of engagement with the rotating seal member.

REFERENCES:
patent: 2279969 (1942-04-01), Casperson
patent: 2390892 (1945-12-01), McCormack
patent: 3469850 (1969-09-01), Jackson et al.
patent: 3889983 (1975-06-01), Freize et al.
patent: 4848400 (1989-07-01), Grant et al.
Deublin Rotating Unions, Engineering Catalog 869A, pp. 26-28, Deublin Company, P.O. Box 2157, 1919 Stanley Street, Northbrook, IL. 60065-2157, 1987.

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