| Patents for F04C 27 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids (2,516) |
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| 11/27/1997 | DE19620480A1 Orbiting motion spiral compressor |
| 11/12/1997 | EP0806569A2 Scroll compressor |
| 11/06/1997 | DE19710419A1 Vane type compressor for e.g. air conditioner used in motor vehicle |
| 11/05/1997 | CN1163991A Scroll compressor |
| 10/08/1997 | EP0698185B1 Rotary screw compressor with seal means |
| 10/08/1997 | CN1161415A Vortex compressor |
| 10/07/1997 | US5674062 Hermetic compressor with heat shield |
| 09/03/1997 | EP0793020A1 Vane type compressor |
| 08/26/1997 | US5660539 Scroll compressor |
| 08/26/1997 | US5660538 Suction mechanism of a fluid displacement apparatus |
| 08/12/1997 | US5655782 Seal device for Lysholm compressor |
| 07/30/1997 | EP0674751B1 Rotary screw compressor with shaft seal |
| 07/22/1997 | US5649816 Hermetic compressor with heat shield |
| 07/16/1997 | CN1154446A Novel sealing structure of roots blower |
| 07/09/1997 | EP0711387B1 Vacuum pump with a gas ballast device |
| 07/09/1997 | CN1154156A Axial sealing apparatus for scroll type compressor |
| 07/08/1997 | US5645408 In a gamma camera system |
| 07/02/1997 | EP0781925A2 Scroll fluid discharging apparatus |
| 06/25/1997 | EP0780576A2 Scroll fluid apparatus |
| 06/24/1997 | US5641280 For oil-free air |
| 06/10/1997 | US5636976 Tip seal for scroll type compressor and manufacturing method therefor |
| 06/05/1997 | DE19544994A1 Multiple-shaft vacuum pump with gears divided off from pumping space |
| 06/04/1997 | EP0777051A2 Scroll compressor |
| 05/28/1997 | EP0775812A1 Seal arrangement for engine-driven supercharger |
| 05/27/1997 | US5632612 Scroll compressor having a tip seal |
| 05/27/1997 | US5632611 Scroll type pump |
| 05/21/1997 | EP0714482B1 Vacuum pump with oil separator |
| 05/20/1997 | US5630712 Electrically-driven closed scroll compressor having means for minimizing an overturning moment to an orbiting scroll |
| 05/15/1997 | WO1997017545A1 Helical compressor |
| 05/15/1997 | WO1997017543A1 Helical compressor |
| 05/14/1997 | EP0772742A1 Axial sealing apparatus for scroll type compressor |
| 05/07/1997 | DE19603110A1 Kompressor Compressor |
| 05/07/1997 | CN1149108A Perfected twin-screw pump, particularly suitable for pumping of biphase fluids in submarine environment |
| 05/02/1997 | EP0742869A4 Scroll-type fluid displacement device having high built-in volume ratio and semi-compliant biasing mechanism |
| 04/30/1997 | CN1148672A Sectional front-end sealing device for volume type vortex fluid compression device |
| 04/23/1997 | EP0769623A1 Scroll type fluid displacement apparatus with an axial seal plate |
| 04/22/1997 | US5622488 Scroll type fluid machine having first and second frame members to increase air tightness |
| 04/16/1997 | CN1147598A Double-loop spiral-slot end sealing |
| 04/16/1997 | CN1147596A Ring Liquid Compression engine |
| 04/01/1997 | US5616016 Pressure biased co-rotational scroll apparatus with enhanced lubrication |
| 03/25/1997 | US5613841 Capacity modulated scroll machine |
| 03/19/1997 | CN1145456A Sealing assembly for rotary oil pumps and method of using same |
| 03/18/1997 | US5611674 Capacity modulated scroll machine |
| 03/18/1997 | US5611659 Method and a device for reducing the gap between a static part and a movable part |
| 03/12/1997 | EP0761969A1 Screw pump |
| 03/12/1997 | CN1144885A Scroll compressor |
| 03/05/1997 | EP0541801B1 Rotary compressor |
| 03/04/1997 | US5607288 Scroll machine with reverse rotation protection |
| 02/19/1997 | EP0758717A1 Liquid ring compressor |
| 02/17/1997 | CA2183309A1 Liquid-ring compressor |
| 02/13/1997 | WO1997005389A1 Spiral compressor, useful in particular to generate compressed air for rail vehicles |
| 02/11/1997 | US5601423 High clearance sliding vane pump |
| 02/06/1997 | DE19604447A1 Spiralverdichter Scroll compressor |
| 02/04/1997 | US5599176 Threaded-rotor compressor |
| 01/29/1997 | EP0756088A2 Scroll compressor |
| 01/29/1997 | CN1141394A Scroll compressor |
| 01/22/1997 | EP0754861A2 Scroll compressor with liquid injection |
| 01/14/1997 | US5593295 Scroll compressor construction having an axial compliance mechanism |
| 01/07/1997 | US5591014 Scroll machine with reverse rotation protection |
| 01/07/1997 | CA2099150C Scroll compressor lubrication control |
| 01/01/1997 | CN1033713C Vortex volume-type fluid displacement device |
| 12/31/1996 | US5588820 Scroll compressor having an axial compliance pressure chamber |
| 12/17/1996 | US5584678 Scroll type fluid machine having tip seals of different carbon fiber composition rates |
| 12/11/1996 | EP0747598A2 Capacity modulated scroll machine |
| 12/11/1996 | EP0747597A2 Capacity modulated scroll machine |
| 12/11/1996 | CN1137614A Capacity modulated scroll machine |
| 12/04/1996 | CN1137100A Eddy air compressor |
| 12/03/1996 | US5580230 Scroll machine having an axially compliant mounting for a scroll member |
| 12/03/1996 | US5580228 Scroll compressor having grooves for seal members |
| 11/27/1996 | EP0744568A1 A pump provided with at least one rotary shaft |
| 11/20/1996 | EP0743454A2 Scroll type fluid displacement apparatus |
| 11/20/1996 | EP0742869A1 Scroll-type fluid displacement device having high built-in volume ratio and semi-compliant biasing mechanism |
| 11/07/1996 | WO1996035056A1 Axial sealing apparatus for scroll type compressor |
| 10/30/1996 | CN1134740A Scroll apparatus with enhanced lubrication |
| 10/24/1996 | WO1996033338A1 Steam-driven screw machine and a method of converting thermal energy to mechanical energy |
| 10/22/1996 | US5567137 Scroll compressor with shaft seal lubrication |
| 10/17/1996 | DE19516994C1 Fluid ring machine |
| 10/09/1996 | EP0736692A1 Sealing, bearing support and driving of the rotors of a dry running screw compressor |
| 10/09/1996 | CN1132826A Vortex-type compressor |
| 10/08/1996 | US5562435 Structure for preventing axial leakage in a scroll compressor |
| 10/08/1996 | US5562434 Scroll compressor having optimized tip seal grooves |
| 10/08/1996 | US5562426 Scroll type refrigerant compressor |
| 10/08/1996 | US5562182 Oil diverting unit for a refrigerant compressor |
| 10/02/1996 | EP0735270A2 Scroll type fluid machine |
| 10/02/1996 | DE19512949A1 Device for sealing screw compressor with at least two rotors |
| 10/02/1996 | CN1132319A Cyclone fluid machinery |
| 09/18/1996 | EP0672222B1 Process and device for reducing the gap between a static part and a movable part |
| 09/18/1996 | CN1131238A Scroll compressor |
| 09/10/1996 | US5554018 Transmission with revolving bearing and seal used hereby |
| 08/20/1996 | US5547355 Scroll type machine having means to prevent or suppress deflection of legs of scroll-supporting frame |
| 08/13/1996 | US5545020 Scroll type compressor with spiral seals |
| 08/07/1996 | EP0725244A1 Emission seal |
| 07/30/1996 | US5540572 Structure for preventing axial leakage in scroll compressor |
| 07/17/1996 | EP0721545A1 Scroll apparatus with enhanced lubrication |
| 07/16/1996 | US5536152 Scroll compressor having improved orbital drive mechanism |
| 07/09/1996 | US5533887 Fluid rotary apparatus having tapered rotors |
| 07/04/1996 | WO1996020345A1 Scroll compressor having bearing structure in the orbiting scroll to eliminate tipping forces |
| 07/02/1996 | US5531578 For a gas including a lubricant |
| 07/02/1996 | CA2132173C Variable capacity vane compressor with axial pressure device |
| 06/27/1996 | WO1996019667A1 Vane type compressor |