| Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462) |
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| 04/05/2000 | EP0990198A2 Method and apparatus for accurately dispensing liquids and solids |
| 04/05/2000 | CN1249403A Bearing lubricating system for vortex type compressor |
| 04/05/2000 | CN1249402A Positive displacement pump |
| 04/05/2000 | CN1249401A Axial compliant cyclic medium pressure chamber with steps for vortex type compressor |
| 04/04/2000 | US6045824 Sustained-release liposomal anesthetic compositions |
| 04/04/2000 | US6045344 Oil-cooled type screw compressor |
| 04/04/2000 | US6045343 Internally cooling rotary compression equipment |
| 04/01/2000 | CA2284425A1 Scroll-type fluid displacement apparatus |
| 03/29/2000 | EP0989304A1 Scroll fluid machinery |
| 03/29/2000 | EP0988453A1 Screw spindle vacuum pump and operating method |
| 03/29/2000 | CN2371370Y Three-cavity rotary displacement pump |
| 03/29/2000 | CN1248688A Heat pump device |
| 03/29/2000 | CN1248678A Spiral type compressor |
| 03/29/2000 | CN1248677A Serrated form generation method for helical rotor |
| 03/29/2000 | CN1050880C Rotary triangle piston comprising technique |
| 03/29/2000 | CN1050879C Scroll compressor and air conditioner using the same |
| 03/28/2000 | US6042351 Enhanced flow compressor discharge port entrance |
| 03/28/2000 | US6042346 Refrigerant compressor having an open type refrigerant pool and an oil reservoir |
| 03/28/2000 | US6042344 Control of scroll compressor at shutdown to prevent unpowered reverse rotation |
| 03/22/2000 | EP0987501A2 Air conditioner |
| 03/22/2000 | EP0987440A1 Capacity control scroll compressor |
| 03/22/2000 | EP0811123B1 Gas actuated slide valve in a screw compressor |
| 03/22/2000 | CN2370193Y Vortex compressor |
| 03/21/2000 | US6039552 Rotary compressor |
| 03/21/2000 | US6039551 Gear pump for use in an electrically-operated sealed compressor |
| 03/21/2000 | US6039550 Magnetic debris trap |
| 03/21/2000 | US6039549 Volute compressor |
| 03/21/2000 | US6039511 Carrying apparatus for spherical objects |
| 03/16/2000 | DE3745097C2 Hermetisch gekapselte Motor-Kompressor-Einheit Hermetically sealed motor-compressor unit |
| 03/16/2000 | DE3745096C2 Rotationskolbenmaschine nach dem Spiralprinzip Rotary piston machine according to the spiral principle |
| 03/16/2000 | DE19942686A1 Spiral/orbital compressor made with reduced number of components has no flange components or holes made solely for positioning |
| 03/16/2000 | DE19942685A1 Spiral compressor with compression mechanism compressing gaseous fluid together with motion along spiral path compressed to produce compressed gas with output flow path |
| 03/15/2000 | EP0721545B1 Scroll apparatus with enhanced lubrication |
| 03/15/2000 | CN1247279A Compressor for refrigerating circulation |
| 03/15/2000 | CN1247278A Oldam's coupling of whirl compressor |
| 03/14/2000 | US6036457 Relief valve which does not protrude beyond a compression housing |
| 03/14/2000 | US6036450 Variable capacity vane compressor |
| 03/14/2000 | CA2282127A1 Air conditioner |
| 03/09/2000 | WO2000012900A1 Dry compressing screw pump |
| 03/09/2000 | WO2000012899A1 Dry-compressing screw pump |
| 03/09/2000 | CA2327080A1 Dry-compressing screw pump |
| 03/08/2000 | EP0984143A2 Improvements to rotary pumps |
| 03/08/2000 | CN1246604A Scroll compressor with unloading valve between energy-saving device and suction device |
| 03/08/2000 | CN1246583A Sealed compressor driven by motor |
| 03/08/2000 | CN1246580A Improved of rotary pump |
| 03/07/2000 | USRE36604 Scroll type compressor having curved surface portions between the shaft and bearing means |
| 03/07/2000 | US6033194 Scroll-type fluid displacement apparatus with anti-wear plate mechanism |
| 03/07/2000 | US6032720 Process for making a vane for a rotary compressor |
| 03/07/2000 | CA2099989C Multi-stage gas compressor incorporating bypass valve device |
| 03/03/2000 | CA2281342A1 Improvements to rotary pumps |
| 03/02/2000 | DE19839501A1 Trockenverdichtende Schraubenspindelpumpe Dry-compressing screw pump |
| 03/01/2000 | EP0982498A1 Capacity control scroll compressor |
| 03/01/2000 | CN2366588Y Complementary double-eddy hydraulic pump |
| 02/29/2000 | US6031610 Multi-lobe pump for particle counters |
| 02/29/2000 | US6030195 Rotary pump with hydraulic vane actuation |
| 02/29/2000 | US6030193 Scroll type fluid machine having an improved Oldham ring |
| 02/29/2000 | US6030192 Scroll compressor having bearing structure in the orbiting scroll to eliminate tipping forces |
| 02/24/2000 | WO2000001461A8 Liquid separator for a liquid injected compressor |
| 02/24/2000 | DE19935925A1 Scroll lock for fluid compressor has bearing races with connecting balls to lock scrolls together for rotation |
| 02/24/2000 | DE19935924A1 Fluidverdrängungsgerät und Rotationsverhinderungsvorrichtung Fluid displacement device and rotation prevention device |
| 02/23/2000 | EP0980978A1 Scroll compressor with liquid injection |
| 02/23/2000 | CN1245258A Rotary compressor, refrigerating circulation and ice house using same |
| 02/23/2000 | CN1245257A Unequal jet nozzle for scroll-type compressor |
| 02/22/2000 | US6027322 Method and apparatus for adjusting the rotors of a rotary screw compressor |
| 02/22/2000 | US6027317 Scroll type machine |
| 02/17/2000 | DE19844904C1 Vacuum pump for brake amplifier |
| 02/16/2000 | EP0979946A1 Variable displacement compressor |
| 02/16/2000 | CN2364248Y Volute for fan |
| 02/15/2000 | US6024547 Power-variable compressor and air conditioner using the same |
| 02/10/2000 | WO2000006955A2 Vapor-compression evaporative air conditioning system |
| 02/10/2000 | WO2000006906A1 Scroll-type vacuum pump |
| 02/10/2000 | WO2000006876A1 Quasi-isothermal brayton cycle engine |
| 02/10/2000 | DE19935926A1 Spiral compressor and rotation prevention mechanism formed by ball pressure bearing has first ring-shaped running track section and second such section in eccentric position with intervals relative to first section |
| 02/10/2000 | CA2340771A1 Vapor-compression evaporative air conditioning system |
| 02/09/2000 | EP0978655A1 Rotary compressor, refrigerating cycle using the compressor, and refrigerator using the compressor |
| 02/09/2000 | CN2363091Y Circular and corrected involute tooth high-viscosity gear pump |
| 02/09/2000 | CN1243918A Roots pump returning cold air back at multiplied speed |
| 02/08/2000 | US6022204 Vane compressor having a single suction groove formed in a side member which is in direct contact with a cam ring |
| 02/08/2000 | US6022203 Variable-displacement screw-type compressor |
| 02/08/2000 | US6022202 Spiral vacuum pump having a toothed circular translation movement limiter device |
| 02/03/2000 | DE3802573C2 Rotationskolbenmaschine der Spiralbauart Rotary piston machine of the scroll type |
| 02/02/2000 | EP0975874A1 Vacuum pump rotor and method of manufacturing the same |
| 02/02/2000 | EP0975873A1 Improved tip seal for scroll-type vacuum pump |
| 02/02/2000 | CN2361881Y Four-cavity rotary positive displacement pump |
| 02/02/2000 | CN2361880Y Five-cavity rotary positive displacement pump |
| 02/02/2000 | CN2361879Y Low-vibration slide valve vacuum pump |
| 02/02/2000 | CN1243204A Resonator for rotary compressor |
| 02/01/2000 | US6019586 Gradationally contracted screw compression equipment |
| 02/01/2000 | US6019585 Oil-sealed vane-type rotary vacuum pump with oil feed |
| 01/31/2000 | CA2279478A1 Rotation preventing device for orbiting member of fluid displacement apparatus |
| 01/26/2000 | EP0974686A2 Electroplating process for oldham ring and scroll member type compressor comprising the same |
| 01/26/2000 | CN2360637Y Symmetrical couble-stroke sliding blade compressor |
| 01/26/2000 | CN1242479A Scroll compressor with lubrication of seals in back pressure chamber |
| 01/25/2000 | US6017205 Scroll compressor |
| 01/25/2000 | US6017204 Spiral compressor, useful in particular to generate compressed air for rail vehicles |
| 01/25/2000 | CA2156092C Scroll compressor |
| 01/20/2000 | DE19826854A1 Multi-spindle roll piston pump with internal precompression for vacuum region, including head endface profiles of different width for two working pistons |
| 01/19/2000 | EP0972944A2 Control of scroll compressor at shutdown to prevent unpowered reverse rotation |
| 01/19/2000 | EP0972943A2 Scroll compressor with lubrification of seals in back pressure chamber |
| 01/19/2000 | EP0972942A2 Scroll compressor with unloader valve between economizer and suction |