Reversing valve assembly for a fluid operated well pump

Details Reversing valve assembly for a fluid operated well pump Reversing valve assembly for a fluid operated well pump

1979-03-21

1981-10-06

Smith, Leonard E.

Pumps

Motor driven

Fluid motor

91329, 91319, F04B 4708, F01L 2506

Patent

active

042932874

ABSTRACT:
A reversing control valve for a fluid operated downhole oil well pump having reciprocating pistons that is constructed to control the velocity and reversing of the pistons. The control valve functions to control the piston velocity and prevent damage to the pump components due to shock stresses induced by pressure impulses typically associated with pumped well fluids. The reversing control valve is constructed to regulate the piston velocity in response to the sensing of several pressure conditions in the well and in the pump.

REFERENCES:
patent: 2081220 (1937-05-01), Coberly
patent: 2311157 (1943-02-01), Coberly
patent: 2935953 (1960-05-01), Coberly
patent: 2949857 (1960-08-01), Coberly
patent: 3082749 (1963-03-01), Coberly
patent: 3849030 (1974-11-01), McArthur et al.
patent: 3922116 (1975-11-01), Pugh

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