SCREW HYDRAULIC GEROTOR MOTOR

FIELD: oil and gas producing industry. ^ SUBSTANCE: invention relates to gerotor mechanisms of multistart screw hydraulic motors in which rotor with bit is rotated by fluid medium delivered by pump which are used in drilling oil and gas wells. Proposed screw hydraulic gerotor motor has stator in for...

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Bibliographische Detailangaben
Hauptverfasser:	ASTAF'EV SERGEJ PETROVICH, PUSHKAREV MAKSIM ANATOL'EVICH, GLINKIN ALEKSEJ SERGEEVICH, NESTEROV ANATOLIJ VLADIMIROVICH, ANDOSKIN VLADIMIR NIKOLAEVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINE PLANTS IN GENERAL FIXED CONSTRUCTIONS HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS PRODUCING MECHANICAL POWER ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES STEAM ENGINES WEAPONS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	FIELD: oil and gas producing industry. ^ SUBSTANCE: invention relates to gerotor mechanisms of multistart screw hydraulic motors in which rotor with bit is rotated by fluid medium delivered by pump which are used in drilling oil and gas wells. Proposed screw hydraulic gerotor motor has stator in form of tubular housing with fitted on elastomer, for instance, rubber lining with internal helical teeth, and rotor arranged eccentrically inside stator with external helical teeth whose number is less by one than number of teeth of lining, pitches of helical teeth of lining and rotor are proportional to number of their teeth, end face profiles of lining and rotor are formed by common basic rack with displacement, and profile of said contour is inscribed by equidistant shortened cycloid. Invention contains expressions and relations improving energy characteristics, mainly developed power and torque by providing larger cross section area occupied by working medium at equal contour diameter, value of eccentricity of engagement in mechanism, number of teeth of lining and rotor owing to optimization of value of circumference generatrix radius. ^ EFFECT: improved energy characteristics. ^ 3 cl, 8 dwg