Refrigerant compressor with shaft bearing having improved wear r
Regulator for cooling or heat pump systems
Rotary air compressor with thermally responsive oil injection
Rotary compressor comprising improved rotor lubrication system
Rotary compressor with heating passage between discharge chamber
Rotary screw vacuum pump with pressure controlled valve for lubr
Rotary vane compressor with valve control of oil to bias the van
Rotary vane type compressor
Rotary-piston machine having a liquid-cooled piston
Rotor cooling means for rotary piston engines