Mechanical seal with flexible metal diaphragm

Details Mechanical seal with flexible metal diaphragm Mechanical seal with flexible metal diaphragm

1995-03-31

1999-09-07

Knight, Anthony

Seal for a joint or juncture

Process of dynamic sealing

Relatively rotatable radially extending sealing face member

277374, 277384, 277393, F16J 1536

Patent

active

059474793

ABSTRACT:
A mechanical end face seal for sealing between a housing and a relatively rotating shaft which includes a pair of relatively rotating annular rings having seal faces in sealing contact with each other to define a seal interface. A generally annular flexible metal diaphragm is secured between an axially movable ring and either the housing or shaft in a configuration such that it is placed in tension to achieve a preload or initial closing force upon the seal faces. In one form the seal components are unitized into a single assembly. A retainer is adapted to be disposed in a bore of the housing in surrounding relation to the shaft. The seal rings are disposed intermediate the axial ends of the retainer with the generally annular flexible metal diaphragm secured to one end of the retainer to define one closure wall of the assembly and to capture the ring components within the retainer.

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