ROTARY-SPIRAL HYDRAULIC MOTOR Russian patent published in 1998 - IPC

Abstract RU 2119035 C1

FIELD: bore-hole drilling machinery and equipment. SUBSTANCE: hydraulic motor has hollow body which accommodates stator with flexible shell, rotor, and drive shaft which is connected with rotor. Flexible shell is located between stator and rotor. Flexible shell is secured with stator and fastened on rotor with possible rotation of rotor relative to flexible shell. Created between internal surface of stator and external surface of shell are flow-passing spiral passages for delivery of working fluid. Spiral passages are made with pitch which coincides with pitch of spiral surface of stator. Aforesaid embodiment of hydraulic motor allows for substantial increase of its service life. EFFECT: higher efficiency. 2 cl, 2 dwg

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RU 2 119 035 C1

Authors

Rjashentsev Vjacheslav Alekseevich

Korjukov Vladislav Vasil'Evich

Sorokin Vladimir Romanovich

Kirievskij Jurij Evgen'Evich

Dates

1998-09-20Published

1997-01-06Filed