Hydraulic Checkball Pump Operation

Dynex/Rivett Inc. presents "Hydraulic Checkball Pump Operation". The rotating wobble plate imparts a reciprocating motion to the pistons. During its suction stroke each piston is filled through its inlet check valve. During compression, the inlet check valve closes and pressure in the pumping chamber rises until it exceeds load pressure. The outlet checkball then lifts off its seat and fluid is pumped out of the chamber. The piston outputs are combined in the pump cover and discharged from the outlet. To learn more, visit www.dynexhydraulics.com.

Category:

Science & Technology

Tags:

• Dynex
• hydraulic
• checkball
• piston
• pump
• operation
• Dynex/Rivett
• animation

[dakporto]

ok the piston slides in the plate, but how is their return motion guaranteed?

[DynexHydraulics]

@dakporto : There are two methods used to return the pistons during their suction stroke. In some pump designs the pistons are spring loaded. In other designs, a hold-down plate provides a mechanical link to the wobble plate assembly, to assure the pistons reciprocate in the bores.

[tuxuday]

neatly explains how h. pumps work. would help if one knew how check valve work.