143608 ⎘
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 inner member the inner and outer member being in contact along more than one line or surface
Sub-classes:Pump for evaporative emissions system
#2Rotary compressor with unequally spaced vane slots
#3Vane pump
#4Oil supply to the back pressure groove of a vane pump
#5Compressor pump body, compressor, and air conditioner with a vane enlargement portion
#6Vane cell pump
#7COMPRESSOR
#8Vane compressor with an improved lubrication system
#9Vane gas pump with sliding element trmporaily completely covering the elongated fluid outlet opening
#10OIL-LUBRICATED ROTARY VANE VACUUM PUMP
#11Backpressure passage rotary compressor
#12FLUID COMPRESSOR
#13Vane for a vane cell pump and vane cell pump
#14VACUUM PUMP MECHANISM
#15Electric pump
#16Vane-rotary gas compressor
#17Gas compressor formed with a high-pressure supply hole
#18Electric pump
#19Vane pump
#20Gas compressor for reducing oscillation in a housing thereof
#21Variable displacement pump with double eccentric ring and displacement regulation method
#22Vane with offset walls and fluid passages used in a vane cell device
#23Rotary vane pumps with asymmetrical chamber cavities
#24SYMMETRICAL VANE PUMP APPARATUS AND METHOD
#25Vane pump apparatus and method
#26Electrically driven gas compressor
#27Compressor
#28Stop mechanism for vane compressor
#29Rotary vane compressor
#30GAS COMPRESSOR
#31Seal for a rotary vane pump
#32Rotary sliding vane compressor with a secondary compressed fluid inlet
#33ELECTRIC COMPRESSOR
#34Vane compressor with improved vanes
#35Fastener member and gas compressor using the same
#36Gas compressor
#37Refrigerant compressor and friction control process therefor
#38Rotary fluid machinery
#39Rotary fluid machine