SUCKER-ROD PUMP VALVE Russian patent published in 2003 - IPC

Abstract RU 2202711 C1

FIELD: oil producing industry. SUBSTANCE: proposed valve contains housing with fitted-in seat. Plate with rod passing through guide engages with seat. Guide is made in housing partition with peripheral holes to pass liquid. Compression spring presses plate to seat. Movable weight is installed between partition and spring. Movable weight is made in form of turned over cup. Spring is arranged in cup inner space. EFFECT: improved reliability in operation. 2 cl, 4 dwg

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RU 2 202 711 C1

Authors

Zakharov B.S.

Bogomol'Nyj E.I.

Drachuk V.R.

Zav'Jalov M.P.

Dates

2003-04-20—Published

2002-05-31—Filed