STATOR OF SCREW GEROTOR HYDRAULIC MACHINE Russian patent published in 2020 - IPC F01C1/107 F04C2/107 E21B4/02

Abstract RU 2723595 C1

FIELD: hydraulic drives.

SUBSTANCE: invention relates to hydraulic drives for rotary drilling located in a well. Stator of helical gerotor hydraulic machine comprises tubular housing 1 with inner surface made with inner helical teeth, coating 9 of elastomer, which is fixed in housing 1, adjacent to inner surface of housing 1. Coating 9 is provided with inner helical teeth and aligned with inner helical teeth of housing 1. Teeth of housing 1 are formed by multiple internal screw splines with circular profile of cross section. Spline tops are conjugated with the envelope spline, which is identical to the theoretical profile of housing 1 cross-section.

EFFECT: invention is aimed at increasing resource and reliability.

3 cl, 11 dwg

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RU 2 723 595 C1

Authors

Mochalin Igor Aleksandrovich

Mezentsev Sergej Vladimirovich

Dates

2020-06-16—Published

2019-08-27—Filed