Pumps – Well pump driven by fluid motor mounted above ground
Patent
1995-12-13
1998-10-27
Thorpe, Timothy
Pumps
Well pump driven by fluid motor mounted above ground
417375, 60414, F04B 4704
Patent
active
058270515
ABSTRACT:
Regenerative hydraulic power transmission for subsurface pumps, including a power source, a variable flow rate hydraulic pump, means to reverse flow through the hydraulic pump responsive to change in direction of the subsurface pump stroke, and an inertial assist for the power source which gathers energy from the downstroke of the subsurface pump and utilizes the gathered energy to power the upstroke of the subsurface pump. The transmission can vary upstroke speed apart from downstroke speed, pump stroke length and dwell time of change in stroke direction.
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Product Brochure, undated, entitled Mannesmann Rexroth Model AA4VSG Variable Displacement Pump.
Air-Go Windmill, Inc.
Thorpe Timothy
Tyler Cheryl J.
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