| 摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: invention relates to pumps used in production of oil and other fluids. Proposed pump comprises pump modules with shafts furnished with splines, axial threaded hole at end, adjusting bolt and slotted bush. Bolt round head has, at least, one recess to receiver pin. Said recess can be shaped to a hole on bolt head side or a slot atop bolt head while said pin may represent a plate. Said pin may have diameter varying over pin length. ^ EFFECT: higher efficiency, lower production costs. ^ 6 cl, 5 dwg |
