Spiral groove seal system for sealing a high pressure gas

Details Spiral groove seal system for sealing a high pressure gas Spiral groove seal system for sealing a high pressure gas

1989-10-30

1993-06-08

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 1, 277 93SD, 277 961, F16J 1534

Patent

active

052172333

ABSTRACT:
A seal system for sealing a housing and rotatable shaft against leakage of a gas under high pressure; hydrogen is an example. The system, using multiple seals in tandem, provides a stepped reduction of high pressure gas at full height pressure to a low pressure across the individual seal modules.
The seal system has plural, axially spaced spiral-grooved end face seal modules mounted between the shaft and housing, the axial spaces between the seals defining a chamber. Each seal module has a primary seal ring affixed to the housing and a mating ring affixed for rotation with the shaft, the two rings having opposed, radially extending faces; each mating ring has a plurality of radial spiral grooves extending radially inward from the outer diameter or circumference.

REFERENCES:
patent: 2882694 (1959-04-01), Vander Arend et al.
patent: 3088621 (1963-05-01), Brown
patent: 3339930 (1967-09-01), Tracy
patent: 3762175 (1973-10-01), Jones
patent: 4212475 (1980-07-01), Sedy
patent: 4290611 (1981-09-01), Sedy
patent: 4423879 (1984-01-01), Takenaka et al.
patent: 4889348 (1989-12-01), Amundson et al.

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