Balanced mechanical seal with flow control

Details Balanced mechanical seal with flow control Balanced mechanical seal with flow control

1977-09-19

1978-09-19

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 74, 277 93SD, 277 29, F16J 1534, F16J 1548

Patent

active

041149009

ABSTRACT:
A balanced mechanical seal structure is disclosed which is constructed to control the leak rate across the seal faces as a function of the pressure differential between the pressure in the stuffing box and the pressure in the seal chamber. The structure is particularly adapted for use in a tandem seal arrangement.

REFERENCES:
patent: 2824759 (1958-02-01), Tracy
patent: 2930636 (1960-03-01), Tracy
patent: 2984507 (1961-05-01), Welch
patent: 3042414 (1962-07-01), Tracy
patent: 3144253 (1964-08-01), Schirmer
patent: 3179422 (1965-04-01), Phillips
patent: 3227463 (1966-01-01), Wiese
patent: 3318604 (1967-05-01), Tracy
patent: 3339930 (1967-09-01), Tracy
patent: 3433489 (1969-05-01), Wiese
patent: 3804424 (1974-04-01), Gardner

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