Pressure balanced metal to metal seal

Details Pressure balanced metal to metal seal Pressure balanced metal to metal seal

1976-09-13

1978-03-07

Aegerter, Richard E.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 961, F16J 1538

Patent

active

040776344

ABSTRACT:
A seal arrangement is provided having a pair of elastomeric seal rings with a seal band adjacent the innermost diameter of the rings. The seal rings are retained by means of a pair of elastomeric torics, one of which is relatively immovable and the other of which is relatively movable. The movable toric is positioned between supporting structure incorporating ramps of low angle, which improves the pressure, velocity relationships of the seal and permits operation at higher speeds. Retention of the other toric stabilizes the seal and prevents cocking or tilting of the rings so as to maintain the sealing plane perpendicular to the rotational axis. An arrangement is thus provided wherein the seals are of nearly equal surface area which produces pressure balanced seals and a more constant, level force along the axis.

REFERENCES:
patent: 2710206 (1955-06-01), Huber
patent: 3392984 (1968-07-01), Reinsma et al.
patent: 3403916 (1968-10-01), Durham et al.
patent: 3452995 (1969-07-01), Engelking
patent: 3499653 (1970-03-01), Gardner
patent: 3524654 (1970-08-01), Hasselbacher et al.

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