DEVICE TO DETECT AXIAL FORCE ACTING AT IMPELLER OF SUBMERSIBLE IMPELLER PUMP STAGE Russian patent published in 2013 - IPC G01L5/12 

FIELD: measurement equipment.

SUBSTANCE: device to determine an axial force acting at an impeller of a stage of a submersible impeller pump, comprises a body, a shaft, an impeller installed on a shaft, a guide vane, besides, in the body with a radial gap relative to its side flanges there is a press bushing made as capable of axial displacement, on the outer surface of the pressing bushing there is a side ledge, which is pressed to a device for measurement of axial displacement, between the body and the side ledge of the pressing bushing there is an elastic element, besides, the upper end of the pressing bushing is the axial support of the impeller, in the body there is at least window in the radial direction.

EFFECT: increased reliability of operation, reduced cost of a device.

3 cl, 4 dwg