Rotating seal

Details Rotating seal Rotating seal

1975-10-07

1977-03-08

Aegerter, Richard E.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 59, 277134, 277203, F16J 1540

Patent

active

040109607

ABSTRACT:
Rotating seal sealing by viscous effect, intalled on a rotating shaft crossing through a bore separating, from the outside medium, an enclosure containing a fluid kept under pressure, comprising at its center two threads having an unequal length and having reverse pitches, separated by a groove and two lip seals for a rotating shaft of the conventional type on either side of the threads. The gap between the two lip seals is fed with viscous fluid by two tanks, one of which is at the pressure of the fluid for which sealing is to be provided. Application to the passing of shafts rotating at a high speed for all types of enclosures containing a gas or a liquid under pressure which can reach several tens of bars.

REFERENCES:
patent: 2799522 (1957-07-01), King et al.
patent: 3131942 (1964-05-01), Ertaud
patent: 3622164 (1971-11-01), Herbert
patent: 3700247 (1972-10-01), Butler et al.
patent: 3778070 (1973-12-01), Shimura

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