142674 ⎘
Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member
Sub-classes:Passive Rotation Of A Valve Using Fluid Flow
#2Drug administration mechanism, method for using drug administration mechanism, and pump unit for drug administration mechanism
#3Fluid working machine and method of operating a fluid working machine
#4Air discharging apparatus and image forming apparatus