Hydraulic power lifting cylinder uses a bypass channel with a non return valve to improve performance

摘要

The hydraulic actuator has a cylinder [1] in which there is a piston [2] with a centre hole [6]. When in position this is sealed against a surface [F] relative to a flow channel. The pressurised space [5] is connected via a spring loaded [9] non return flow valve [8] in a bypass channel [7].