Aermotor Windmill Company, Inc.  
 
How a cylinder pump lifts water through the drop pipe
Cylinder pump idle
Up-stroke
Top of stroke
Down-stroke
Down-stroke
Water column held in place Water column is lifted Cylinder pump is filled Plunger returns down through cylinder Plunger nears the bottom
Plunger Valve - closed Plunger Valve - closed Plunger Valve - closed Plunger Valve - open Plunger Valve - open
Check Valve - closed Check Valve - open Check Valve - open Check Valve - closed Check Valve - closed
Aermotor cylinder pump at rest Aermotor cylinder pump begins the up-stroke Aermotor cylinder pump at the top of the stroke Aermotor cylinder pump as it begins the downstroke to refill the cylinder Aermotor cylinder pump midway on the downstroke
(Back to Cylinder Pump)
(Back to Cylinder Pump)
(Back to Cylinder Pump)
(Back to Cylinder Pump)
(Back to Cylinder Pump)
Copyright 2008, Aermotor Windmill Company, Inc.