Internal view of working prototype of Gigadron hydraulic motor / pump
2 pairs of 4 double acting pistons each using a common pressure cylinder. That is equivalent to 16 single acting pistons & cylinders ...
DTU Hydraulic Ram Pump , 160mts lift Costa Rica
6DTU ram pump design, converted to support lift of 160 mts by adapting a Mack valve seat and valve, since design used rubber valve which failed ...