Sealing arrangement between a shaft and a housing of a fluid flo

Details Sealing arrangement between a shaft and a housing of a fluid flo Sealing arrangement between a shaft and a housing of a fluid flo

1988-11-04

1989-09-12

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 15, 277 59, 277 65, 277 83, 277173, F16J 1534, F16J 1546

Patent

active

048653322

ABSTRACT:
A sealing arrangement between a shaft and a housing of a fluid flow engine consists of a blocking gas space acted upon with blocking gas, which is delimited by two sealing rings guided in annular grooves of the shaft and radially sealingly abutting at the shaft through-bore. In order to avoid operation-endangering wear of the sealing rings in case of failure of the blocking gas supply, the shaft through-bore is constructed with three diameter regions mutually offset by right angle steps. The steps form each an axial support for the coordinated sealing ring which comes into action when a permissive initial wear has occurred at the sealing ring.

REFERENCES:
patent: 3462159 (1969-08-01), Baumann et al.
patent: 3588125 (1971-06-01), Mastromatteo
patent: 3716245 (1973-02-01), Turolla
patent: 4462601 (1984-07-01), Skoog
patent: 4560173 (1985-12-01), Adams et al.

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