Flow regulating shaft seal for an air motor

Details Flow regulating shaft seal for an air motor Flow regulating shaft seal for an air motor

1980-12-10

1983-02-15

Hornsby, Harvey C.

Rotary kinetic fluid motors or pumps

With lubricating, sealing, packing or bearing means having...

For shaft sealing, packing, lubricating or bearing means

415113, 415176, F01D 1104

Patent

active

043738583

ABSTRACT:
A valve arrangement responsive to a pressure differential continuously throttles air flowing through a labyrinth seal, allowing only a small fraction of the leakage that would otherwise occur. The arrangement accomodates radial and axial shaft displacement without rubbing contact. This avoids seal wear for high shaft rotating speeds, high temperatures and/or rapid temperature changes.

REFERENCES:
patent: 2326824 (1943-08-01), Browne et al.
patent: 3269317 (1966-08-01), Lattanzio et al.
patent: 3347552 (1967-10-01), Frisch
patent: 3443815 (1969-05-01), Voitik et al.

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