Manually operated double acting pump - has reciprocating piston with double valves on either side to give suction and compression

摘要

The double acting pump works continuously, using a reciprocating piston. It draws and.or compresses fluids and the piston is manually controlled from outside the cylindrical body. This body (1) has sealed ends (3,4) forming internal separating chambers (3a,3b,4a,4b). These are placed in communication, in pairs, by pipes (5,6). The upper and lower chambers communicate inside the body (1) via two pairs of valves (10,11,12,13). These are mounted in opposite senses on the piston rod (2a) and given a pressure/suction action in the output chamber (3b). The ends (3,4) have circular assembly holes (3c,3d,4c,4d) for the connecting pipes.