PUMP VALVE UNIT Russian patent published in 2004 - IPC

Abstract RU 2233996 C2

FIELD: oil producing industry; hydraulic machine building.

SUBSTANCE: invention is designed for use in deep-well sucker-rod pumps. It has hollow housing accommodating seat with ball loaded by adapter. Ring bore and cylindrical bore are made in housing. Guide device is made in form of upper support ring installed in ring bore of housing, lower support ring and step bearing in middle part coupled by vertical ribs spaced over perimeter. Lower support ring is arranged on end face of seat to enclose ball form below.

EFFECT: increased service life, reduced hydraulic resistance, increased erosion resistance.

4 dwg

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RU 2 233 996 C2

Authors

Korshunov V.N.

Mashkov V.A.

Shchapin V.M.

Dates

2004-08-10—Published

2001-06-13—Filed