POSITIVE DISPLACEMENT PUMP Russian patent published in 2006 - IPC F04B53/14 F04B13/00

Abstract RU 2282060 C2

FIELD: hydraulic machine building; positive displacement pumps.

SUBSTANCE: in proposed positive displacement pump suction valve-piston and delivery valve-rod seals are furnished, each, with devices for relative axial fixing of elastomer sealing member and rigid frame. Ring groove of piston is made sectional, with side wall from side of ring groove of housing in form of cylindrical disk furnished with outlet channels and engaging with piston through surface of end face pointed to ring groove.

EFFECT: stabilized delivery, improved reliability of operation and provision of convenience of pump assembling.

2 cl, 1 dwg

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RU 2 282 060 C2

Authors

Kostenko Anatolij Ivanovich

Dates

2006-08-20—Published

2004-11-15—Filed