Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
04/1992
04/30/1992CA2051734A1 Scroll apparatus having a modified tip seal groove
04/29/1992EP0482592A1 Compressor capacity control method and apparatus therefor
04/29/1992EP0482209A1 Scroll compressor
04/29/1992CN1060699A Scroll machine with floating seal
04/28/1992US5108274 Scroll-type fluid machine with counter-weight
04/28/1992US5108269 Method of controlling a rotary compressor
04/28/1992CA1299546C Scroll type fluid displacement apparatus with improved fixed scroll construction
04/28/1992CA1299351C2 Scroll-type machine with rotation controlling means and specific wrap shape
04/23/1992DE4133367A1 Spiral compressor for supercharging combustion engine - has arrangement for lengthening ends of spiral blades
04/23/1992DE4033455A1 Vane type compressor for cooling systems - comprises cast aluminium@ alloy stator ring and radially sliding vanes in polyether-ether ketone with PTFE filler
04/23/1992DE4033420A1 Pressure valve for rotary piston compressor - uses valve element sleeve with axial and circumferential grooves
04/22/1992CN1060514A Counterweight shield for refrigeration compressor
04/21/1992US5106279 Orbiting scroll member assembly
04/21/1992US5105634 Scroll apparatus having a modified tip seal groove
04/15/1992EP0480629A1 Improvements in mechanical pumps
04/15/1992EP0480560A2 Scroll machine with overheating protection
04/15/1992EP0480065A1 Scroll compressor
04/15/1992CN1016260B Fluid compressor
04/14/1992US5104302 Scroll compressor including drive pin and roller assembly having sliding wedge member
04/14/1992US5103652 Scroll compressor and scroll-type refrigerator
04/14/1992US5103558 Method and apparatus for machining scroll wraps
04/08/1992EP0479421A1 Scroll machine with floating seal
04/08/1992EP0479413A1 Counterweight shield for refrigeration compressor
04/08/1992EP0479412A1 Oldham coupling for scroll compressor
04/08/1992EP0478795A1 Scroll compressor
04/07/1992US5102318 Compresssor structure with abutment guide blocks
04/07/1992US5102317 Two-cylinder-type rotary compressor system having improved suction pipe coupling structure
04/07/1992US5102316 Non-orbiting scroll mounting arrangements for a scroll machine
04/07/1992US5102315 Orbiting member fluid displacement apparatus with rotation preventing mechanism
04/07/1992US5102314 Vane pump for conveying pasty masses, in particular sausage meat
04/07/1992US5101644 Co-rotational scroll apparatus with positive lubricant flow
04/01/1992EP0478378A2 Check valve for compressor
04/01/1992EP0478269A1 Scroll compressor with axially compliant scroll
04/01/1992EP0477601A1 Method of making a rotor for a vacuum pump and rotor made according to this method
03/1992
03/31/1992US5100307 Scroll-type fluid machine with a plurality of discharge ports
03/31/1992US5099976 Fire extinguishing apparatus for compressors
03/31/1992US5099658 Co-rotational scroll apparatus with optimized coupling
03/24/1992US5098266 Lubrication of a horizontal rotary compressor
03/24/1992US5098265 Oil-free scroll fluid machine with projecting orbiting bearing boss
03/17/1992US5096399 Rotor pair for high pressure screw compressor and screw compressor using same
03/17/1992US5096387 Vane compressor with means for obtaining sufficient back pressure upon vanes at the start of compressor
03/17/1992CA1297460C Compact scroll-type fluid compressor
03/12/1992DE4128162A1 Spiral displacement machine or loader - has disc-shaped runner with two blades on each side of runner plate
03/10/1992US5094592 Variable capacity vane compressor having a seal protective structure
03/10/1992US5094085 Refrigerating cycle apparatus with a compressor having simultaneously driven two compressor means
03/04/1992EP0472933A2 Fluid rotating apparatus
03/04/1992EP0472751A1 Rotor for a lobe rotor type vacuum pump
03/04/1992CN1059190A Scroll-type compressor
03/04/1992CN1059189A Compressor
02/1992
02/26/1992EP0472248A1 Scroll-type compressor
02/26/1992CN1059017A Scroll-type fluid machinery
02/25/1992US5090882 Rotary fluid machine having hollow vanes and refrigeration apparatus incorporating the rotary fluid machine
02/25/1992US5090880 Scroll compressor with discharge valves
02/25/1992US5090879 Recirculating rotary gas compressor
02/25/1992US5090878 Non-circular orbiting scroll for optimizing axial compliancy
02/25/1992US5090876 Scroll type fluid handling machine
02/25/1992US5090875 Fluid compressor
02/25/1992US5090874 Fluid compressor
02/19/1992EP0471425A1 Scroll type fluid machinery
02/19/1992CN2096658U Vane pump
02/18/1992US5088907 Screw rotor for oil flooded screw compressors
02/18/1992US5088906 Axially floating scroll member assembly
02/18/1992US5088905 Check valve for scroll compressor
02/13/1992DE4025406A1 Rotary compressor or IC engine - has housing containing working rotor and synchronous rotor with fixed rotation ratio
02/12/1992CN1015487B Harmonic motion wearless eccentric rotor pump
02/12/1992CN1015486B Fluid compressor
02/11/1992US5087182 Casing construction for screw compression/expansion machines
02/05/1992EP0469700A1 Scroll machine lubrication system
02/04/1992US5085565 Axially compliant scroll with rotating pressure chambers
02/04/1992CA1295303C Compressor with axially balanced shaft
01/1992
01/29/1992EP0468877A1 Apparatus for multiphase pumping or compression and its application
01/29/1992EP0468238A1 Scroll type compressor with variable displacement mechanism
01/29/1992CN1058257A 齿轮式空气压缩机 Gear-type air compressors
01/28/1992US5083907 Roots-type blower with improved inlet
01/22/1992EP0467492A1 Compressor
01/22/1992EP0467342A1 Scroll type compressor
01/21/1992US5082432 Axial sealing mechanism for a scroll type compressor
01/21/1992US5082431 Mechanical scavenging system for single screw compressors
01/21/1992US5082430 Rotating spiral compressor with reinforced spiral ribs
01/21/1992US5082427 Screw compressing apparatus, rotor temperature control apparatus for screw compressing apparatus and operating control apparatus for screw compressing apparatus
01/15/1992EP0465807A2 Dry rotary vane compressor
01/15/1992EP0465799A2 Rotary compressor for refrigerating gas and related procedure
01/15/1992CN2093249U Double magnetic blade gas motor
01/15/1992CN1057889A Scroll type fluid machinery
01/15/1992CN1015304B Fluid compression engine
01/14/1992US5080566 Fluid scroll machine with projection on one side of Oldham ring
01/14/1992US5080562 Annular rolling rotor motor compressor with dual wipers
01/08/1992EP0464970A1 Scroll type fluid machinery
01/08/1992EP0464683A1 Fluid compressor
01/08/1992EP0464316A1 Screw compressor
01/08/1992EP0464282A2 Scroll compressor discharge valve
01/07/1992US5078583 Inlet port opening for a roots-type blower
01/02/1992DE4020087A1 Gas compressor, vacuum pump or gas expansion motor - has slide plates which form seal unaffected by centrifugal force
12/1991
12/31/1991US5076772 Slider block radial compliance mechanism with integral deflection bearing
12/31/1991US5076771 Scroll type fluid compressor with lubricated spiral seal member
12/31/1991US5076768 Rotary piston compressor
12/31/1991US5076067 Compressor with liquid injection
12/25/1991CN2091368U Hand mini-inflator
12/25/1991CN1015193B Compressor for heat pump and method of operating said compressor
12/24/1991US5074769 Compressor having an orbital rotor with parallel linkage and spring biased vanes