STATOR OF HELICAL GEROTOR TYPE HYDRAULIC MACHINE Russian patent published in 2009 - IPC F01C1/107 F04C2/107 E21B4/02 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to gerotor-type mechanisms of helical hydraulic machine, located in wells. Stator of helical gerotor-type hydraulic machine contains external pipe, installed inside it bush sleeve with inner helical multithreaded teeth, and also fixed in bush sleeve armature made of elastomer, for instance, from rubber, forming inner helical multithreaded teeth, provided for placement of rotor, allowing external surface with helical multithreaded teeth, number of rotor teeth for one less than number of bush sleeve's teeth. Central longitudinal axis of rotor and bush sleeve are displaced to each other for value of eccentricity. External pipe contains by edges connecting units, restricting bush sleeve's axial movement. Bush sleeve is implemented with long slot, passing through its whole length and thickness of wall. Long slot is filled by elastomer, from which it is formed stator armature. Maximal width of long slot is equal to the thickness of armature made of elastomer lengthwise radially directed inside helical teeth. Between butts of bush sleeve and connecting units there are installed back-up plates. Butts of bush sleeve, back-up plates and, at least, one of connecting units are outfitted by fastening device of its mutual peripheral position.

EFFECT: there are increased resort, reliability and energy characteristics of gerotor hydraulic motors.

8 cl, 5 dwg