142865 ⎘
Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary
Sub-classes:Circular propulsion jet compressor-engine
#2Portable pneumatic power supply and compressor systems and methods thereof
#3Portable air/gas compressor
#4Compressed air power generating systems using a rotary gravity compressor