Seal assembly including a sealing ring having internal lubricant

Details Seal assembly including a sealing ring having internal lubricant Seal assembly including a sealing ring having internal lubricant

1983-12-22

1988-06-07

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 75, 277 22, F16J 1534, F16J 1540

Patent

active

047491990

ABSTRACT:
A shaft seal assembly having an annular member affixed to the shaft for rotation therewith, a sleeve encompassing the shaft and being biased axially towards the annular member and a free floating sealing ring interposed between the annular member and the sleeve to prevent pressurized working substance form leaking about the shaft is disclosed. The sealing ring includes internal flow passageways which act to reduce the pressure of lubricant flowing therethrough to both effectively cool the free floating ring and to reduce the pressure of the lubricant obviating the necessity of a separate breakdown bushing.

REFERENCES:
patent: 1618655 (1927-02-01), Halvorsen
patent: 3804424 (1974-04-01), Gardner
patent: 3921986 (1975-11-01), Geary et al.
Elliott Company Literature "Centrifugal Compressor Seals," 2 pp., date and publisher unknown.
Isocarbon Seal Assembly, pp. 10-12, date unknown, publisher unknown.

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