| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: hole screw pump assembly incorporates a motor, a submerged screw pump, tubing and casing pipes and a reducing module arranged between the motor protector and the screw pump inlet and comprising housing, a driving camshaft, a flat-bevel gearing and an output shaft. The aforesaid gearing two-rim wheel comes engaged in mesh with the fixed gear arranged on the driving camshaft side and gear coupling linked to the output shaft. ^ EFFECT: lower screw pump rotor rpm. ^ 2 dwg |
