| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: proposed pump comprises housing accommodating downhole motor, pressure pipeline and system of valves. It comprises also self-braking harmonic reducer with output shaft coupled with axial rocker and made up of disk and rod fitted on spherical bearings. Said reducer is coupled with wedge resting via cylindrical rollers on fixed segment and gasket. Said gasket is arranged on flexible shell resting on second fixed segment. ^ EFFECT: higher reliability, longer life. ^ 3 dwg |
