143667 ⎘
Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
Sub-classes:Volume ratio for a R718* compressor
#2Screw compressor with adjustable passage
#3SCREW COMPRESSOR
#4Compressor having capacity modulation assembly
#5Gas compressor
#6Compressor having capacity modulation assembly
#7Scroll compressor with partial load capacity
#8Scroll compressor having a capacity variable device
#9Intermediate discharge port for a compressor
#10Scroll compressor
#11Horizontal step scroll compressor with bypass ports
#12Multi-stage pump assembly having a pressure controlled valve for controlling recirculation of fluid from the pump stage outlet to the pump stage inlet
#13Screw machine
#14Claw pump
#15Scroll compressor
#16Pump assembly and method for evacuating a vapor-filled chamber
#17Gas compressor having an asymmetric cylinder chamber
#18Variable volume screw compressors using proportional valve control
#19Multi-stage pump assembly having a pressure controlled valve for controlling recirculation of fluid from the pump stage outlet to the pump stage inlet
#20Manual Vi adjustment mechanism for screw compressors
#21Scroll compressor with bypass hole
#22Scroll compressor having a pass hole for preventing over-compression under a low load condition
#23Single screw compressor structure
#24Compressor having capacity modulation system
#25Mode changing apparatus for a scroll compressor
#26Scroll compressor including a fixed scroll and a orbiting scroll
#27STEPPED SCROLL COMPRESSOR WITH STAGED CAPACITY MODULATION
#28Displacement Changing Control Device for Scroll Compressors
#29Rapidly pumping out an enclosure while limiting energy consumption
#30Variable capacity rotary compressor
#31Variable capacity rotary compressor