142752 ⎘
Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers the pumping members not being mechanically connected to each other the movement of each pump piston in the two directions is obtained by a double-acting piston fluid motor
Sub-classes:Industrial pneumatic pump for a viscous fluid
#2Hybrid thermodynamic compressor
#3Seal-less piston pump for liquefied gas
#4Arrangement For Supplying A Liquid Medium To A Teat Of An Animal
#5Method and system for pumping powder, and powder coating apparatus