SUCKER-ROD PUMP VALVE Russian patent published in 2022 - IPC F16K15/04 F04B53/10 

FIELD: mining equipment.

SUBSTANCE: invention relates to the field of well operation by sucker-rod pumps in horizontal and inclined wells. The valve of a sucker-rod pump for operation in a horizontal borehole contains a housing, a main ball moving along guides parallel to the axis of the housing, a seating, an additional ball pressing the main one against the seating with the help of a gravity system. The additional ball is placed in the housing outside the guides with the possibility of limited longitudinal and transverse movements between the main ball and the gravity system. The gravity system is made in the form of an internal conical surface, a coaxial axis of guides and a seating.

EFFECT: invention is aimed at simplifying the design, increasing reliability and reducing the transverse dimensions.

6 cl, 10 dwg