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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 f rom the outlet. To learn more, visit Dynex/Rivett Website


Charlie Bray
14 Sep 2013

This is the way most modern aircraft hydraulic pumps work. We, aviation maintenance technicians, call them wobble pumps.


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