Udiflow Limited

China

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IPC Class
F04B 5/02 - Machines or pumps with differential-surface pistons with double-acting pistons 1
F04B 53/14 - Pistons, piston-rods or piston-rod connections 1
F04B 53/16 - CasingsCylindersCylinder liners or headsFluid connections 1
F04B 9/10 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid 1
F04B 9/111 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members 1
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1.

A RECIPROCATING PUMP

      
Application Number IB2016057643
Publication Number 2017/064691
Status In Force
Filing Date 2016-12-15
Publication Date 2017-04-20
Owner
  • UDIFLOW LIMITED (China)
  • VAN DER WALT, Louis Stephanus (South Africa)
Inventor Combrink, Dirk Pieter

Abstract

A reciprocating pump (10) comprises a first upright leg (12), a second upright leg (14), a first cross-over conduit (18), a second cross-over conduit (18), a lower valve assembly (20) and an upper drive assembly (22). The drive assembly includes plungers (30) which exert alternating downward pumping forces on columns of liquid in the legs (12, 14). The valve assembly is located in a reservoir of water (55) and includes suction openings (80, 64) in the water, which lead into the cross-over conduits (18) and (18), respectively. The valve assembly includes a system of valves and pistons (74, 76) for controlling flow of water into the legs (12, 14) via the cross-over conduits (12, 14) when pumping forces are alternately applied to columns of wafer in the legs (12, 14) wherein water in the legs is raised and lowered in alternating pendulum fashion. Water is drawn into and alternately forced along the cross-over conduits into the legs where the water is pumped from upper ends of the legs (12, 14) via slots (31) defined in the plungers.

IPC Classes  ?

  • F04B 5/02 - Machines or pumps with differential-surface pistons with double-acting pistons
  • F04B 9/10 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
  • F04B 9/111 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members
  • F04B 9/115 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by two single-acting liquid motors, each acting in one direction
  • F04B 53/14 - Pistons, piston-rods or piston-rod connections
  • F04B 53/16 - CasingsCylindersCylinder liners or headsFluid connections