Deriving mechanical power by expanding a liquid to its vapour

Device for controlling the internal compression in a screw compr

Device for controlling the volumetric capacity of a screw compre

Diffuser for high-speed screw compressor

Diffuser guide vanes for high-speed screw compressor

Discharge diffuser for screw compressor

Discharge porting design for screw compressor

Discharge porting for screw compressor with tangential flow...

Displacement compressor with reduced compressor noise

Displacement pump and method of use thereof

Double screw rotor assembly

Double screw rotor assembly having means to automatically...

Double-ended ceramic helical-rotor expander

Double-lobe type rotor design process

Double-shaft vacuum pump with synchronization gears

Drilling rig having a compact compressor/pump assembly

Drive mechanism for a screw pump

Drive transmission mechanism between two or more rotary...

Driving mechanism for driving a gear pump for forcing a highly v