Reciprocating rod pump seal assembly

Details Reciprocating rod pump seal assembly Reciprocating rod pump seal assembly

1992-03-12

1993-05-11

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 15, 277 17, 277 27, F16J 1532

Patent

active

052094952

ABSTRACT:
In accordance with illustrative embodiments of the present invention, a combination stuffing box and pressure transmitter system for use with a reciprocating rod or plunger pump includes a housing that carries primary and secondary seal assemblies separated by an oil-filled chamber. A pressure transmitter transmits the pressure of the fluid being pumped to the oil in the chamber so that the secondary seal assembly operates under substantially balanced pressure conditions with little or no tendency of the pumped fluids to leak past it, while the primary seal assembly operates under optimum conditions to prevent leakage of oil having known characteristics to the environment.

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patent: 4428584 (1984-01-01), Shapiro
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patent: 4623151 (1986-11-01), Kashiwamura et al.
patent: 4703835 (1987-11-01), Negrutsky
patent: 4769992 (1988-09-01), Harada et al.

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