Mechanical seals

Details Mechanical seals Mechanical seals

1985-05-16

1987-04-21

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 9, 277 81R, 277 84, 277 87, 277 93SD, 277 96, 285381, F16J 1516, F16J 1534, F16J 1554, F16B 400

Patent

active

046590927

ABSTRACT:
In a mechanical seal, a seal face member is compressed by a shrink fitted squeeze ring onto a spigot of a carrier forming one of two seal elements. This arrangement reduces distortion of the seal face and shrouds the seal member from attack by a fluid product in the space. Distortion of the seal face is further discouraged by also shrink fitting the squeeze ring onto the carrier. The squeeze ring circumferentially abuts the face seal member and either radially or circumferentially abuts the carrier to provide structural stability and to shroud the face seal member on three sides leaving only the seal face exposed. The squeeze ring can be arranged internally of the seal face member with the spigot on the carrier arranged externally. In either event the seal face member, usually constructed from carbon is held under radial compression for increased strength.

REFERENCES:
patent: 1340650 (1920-05-01), Deranek
patent: 1687343 (1928-10-01), Madden
patent: 2836440 (1958-05-01), Brumagim
patent: 2951719 (1960-09-01), Porges
patent: 2995390 (1961-08-01), Gardner
patent: 3305841 (1962-05-01), Riester
patent: 3356378 (1967-12-01), Tracy
patent: 3770181 (1973-11-01), Stahl
patent: 3811687 (1974-05-01), Honold et al.
patent: 4145059 (1979-03-01), Imai et al.
patent: 4415164 (1983-11-01), Johnson
patent: 4543011 (1985-09-01), Lindenthal

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