143616 ⎘
Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along more than line or surface
Compressor having sliding portion provided with oil retainer
#2Pump body assembly and assembly method therefor
#3Compressor having a lubrication surface formed on a roller thereof
#4Compressor
#5Rotary compressor having fluid passage between sliding vane and vane slot