Bushing seal with dual restricted fluid passages

Details Bushing seal with dual restricted fluid passages Bushing seal with dual restricted fluid passages

1984-07-19

1985-03-05

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 15, 277 17, 277133, 277135, 277173, 277DIG8, F16J 1540, F16J 1550

Patent

active

045026939

ABSTRACT:
A bushing seal for a compressor for compressing wet chlorine. The bushing seal includes a bushing surrounding a rotary member of the compressor. Opposing surfaces of the shaft and the bushing define a first restricted fluid passage in communication with the interior of the compressor. Opposing surfaces of the bushing and a compressor casing define a second restricted fluid passage in communication with the interior of the compressor. Opposing surfaces of the rotary member and the bushing define a pumping chamber for receiving a sealing fluid having an initial pressure in excess of a pressure of a process gas within the compressor when the compressor is not operating. The pumping chamber increases the pressure of the sealing fluid to a pressure in excess of a pressure of the process gas when the compressor operates. The outlet of the pumping chamber is in fluid flow communication with the first and second restricted fluid passages.

REFERENCES:
patent: 2835514 (1958-05-01), McJahan
patent: 3081095 (1963-03-01), Hamrick
patent: 3580587 (1971-05-01), Hessheim et al.
patent: 3724861 (1973-04-01), Lesiecki
patent: 4146238 (1979-03-01), Jaffal
patent: 4466619 (1984-08-01), Adams

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