| Patents for F04D 17 - Radial-flow pumps specially adapted for elastic fluids, e.g. centrifugal pumps; Helico-centrifugal pumps specially adapted for elastic fluids (4,320) |
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| 06/08/2000 | WO2000032937A1 Impeller to shaft coupling |
| 06/06/2000 | US6071092 Vacuum pump with improved back-up bearing assembly |
| 06/06/2000 | US6071070 Air-conditioning equipment for vehicles |
| 05/30/2000 | US6068457 Lobed pinion drive shaft for refrigeration compressor |
| 05/24/2000 | EP1002958A2 Radial fan |
| 05/24/2000 | EP1002957A2 Radial fan |
| 05/24/2000 | EP0697069B1 Friction vacuum pump with pump sections of different designs |
| 05/24/2000 | CN1254398A Tangential fan cutoff board |
| 05/24/2000 | CN1254058A Crossflow fan for air conditioner |
| 05/16/2000 | US6062810 Turbomolecular pump |
| 04/26/2000 | EP0995039A1 High pressure centrifugal compressor |
| 04/26/2000 | CN2375788Y Double-suction double-arc centrifugal fan |
| 04/19/2000 | EP0993555A1 Apparatus for conditioning air |
| 04/19/2000 | CN1250845A Feasily detachable and cleaned dual-output blower |
| 04/18/2000 | US6050773 Flow stabilizer for transverse fan |
| 04/13/2000 | WO2000020763A1 Friction vacuum pump |
| 04/13/2000 | DE19846189A1 Reibungsvakuumpumpe Friction vacuum pump |
| 04/12/2000 | CN2373603Y Centrifugal fan |
| 04/12/2000 | CN1051291C Grooved disk apparatus |
| 04/05/2000 | EP0990798A1 Turbo compressor |
| 03/30/2000 | WO2000017524A1 Two-stage centrifugal compressor driven directly by motor |
| 03/28/2000 | US6042334 Compressor interstage seal |
| 03/21/2000 | US6039539 Radial fan wheel |
| 03/15/2000 | CN2369016Y 蒸汽泵 Steam Pump |
| 03/14/2000 | US6037723 Air control system for an air bed |
| 03/08/2000 | EP0685039B1 Device and method for thermal transfer using air as the working medium |
| 03/08/2000 | CN1246920A Improved heat gun fan assembly |
| 03/01/2000 | EP0982502A2 Centrifugal compressor |
| 03/01/2000 | EP0981691A1 Vacuum pump with back-up bearing assembly |
| 02/29/2000 | US6030186 Method and apparatus for minimizing noise from fan filter unit |
| 02/29/2000 | US6030173 Suction unit for hoods, ovens and similar appliances having a casing with two or more adjacent and spaced augers |
| 02/23/2000 | EP0980963A2 Compressor interstage seal |
| 02/23/2000 | CN1245259A 电动鼓风机 Electric blower |
| 02/10/2000 | WO2000006912A1 Method for manufacturing a blade or baffle of sheet metal |
| 02/10/2000 | WO2000006911A1 Gas compressor |
| 02/10/2000 | WO2000006910A1 Rotation device with drive motor |
| 02/10/2000 | WO2000006909A1 Medium transmission |
| 02/10/2000 | WO2000006908A1 Device for increasing the pressure in a medium flow |
| 02/10/2000 | WO2000006907A1 Rotation device |
| 01/27/2000 | WO2000004292A1 Inclined flow air circulation system |
| 01/19/2000 | CN2359501Y 超临界真空泵 Supercritical pump |
| 01/11/2000 | US6013966 Mini-fan unit especially for use as a fun printed circuit boards |
| 01/11/2000 | US6012897 Free rotor stabilization |
| 01/06/2000 | WO2000000746A1 Turbo-molecular pump |
| 01/05/2000 | CN2357159Y Centrifugal fan mated with circulation fluidized bed boiler for use |
| 01/04/2000 | US6009722 Motor cooling structure for turbo |
| 12/22/1999 | CN2355143Y Hand twist/electric blower |
| 12/22/1999 | CN2355141Y Axial centrifugal fan |
| 12/21/1999 | US6004093 Portable air-blowing working machine |
| 12/21/1999 | US6003195 Vacuum generation device |
| 12/16/1999 | WO1999064667A1 Control system for a vacuum pump used for removing liquid and a method of controlling said pump |
| 12/09/1999 | DE19901340A1 Reibungsvakuumpumpe mit Chassis, Rotor und Gehäuse sowie Einrichtung, ausgerüstet mit einer Reibungsvakuumpumpe dieser Art Friction vacuum pump with chassis, rotor and housing, as well as device equipped with a friction vacuum pump of this kind |
| 12/02/1999 | WO1999061799A1 Frictional vacuum pump with chassis, rotor, housing and device fitted with such a frictional vacuum pump |
| 12/02/1999 | DE19823575A1 Cross-flow fan with optimum aerodynamic properties |
| 12/02/1999 | DE19823197A1 Cross-flow fan, for use with warm air oven, for example |
| 11/25/1999 | WO1999060275A1 Friction vacuum pump with a stator and a rotor |
| 11/24/1999 | CN2350573Y Improved wear-resistant water-ring vacuum pump |
| 11/18/1999 | WO1999058857A1 Electric blower and vacuum cleaner using it |
| 11/18/1999 | DE19821634A1 Friction vacuum pump with staged rotor and stator |
| 11/17/1999 | CN2349388Y Centrifugal blower fan |
| 11/10/1999 | EP0954727A1 Improved heat gun fan assembly |
| 11/10/1999 | CN2348163Y Two-stage sucking pump for water pump |
| 11/10/1999 | CN2348162Y Integral non-contact pneumatic sealing centrifugal chlorine compressor |
| 11/09/1999 | US5980218 Multi-stage compressor having first and second passages for cooling a motor during load and non-load operation |
| 11/09/1999 | US5980199 Performance centrifugal blower apparatus including at least two suction inlets, and associated blower method |
| 10/27/1999 | CN2345750Y Cenrifugal draught fan used with cooker hood |
| 10/27/1999 | CN2345749Y Cabinet centrifugal ventilation device |
| 10/19/1999 | US5967747 Low noise fan |
| 10/13/1999 | CN2343395Y Multi-wing type blade centrifugal fan |
| 10/06/1999 | CN2342146Y Air fan |
| 09/30/1999 | WO1999049222A1 Small turbo compressor |
| 09/30/1999 | CA2325048A1 Small turbo compressor |
| 09/29/1999 | CN2340955Y Vortex compressor with terminal high-low pressure sealing structure |
| 09/22/1999 | EP0943876A1 Heat exchanger or heat pump with cross flow fan |
| 09/22/1999 | EP0943807A1 Turbomolecular pump |
| 09/16/1999 | WO1999046509A1 Vacuum pump with back-up bearing assembly |
| 08/31/1999 | US5944481 Transverse fan with flow stabilizer |
| 08/31/1999 | US5943878 Tangential fan scroll and discharged diffuser design |
| 08/25/1999 | CN2334929Y High-efficient guiding type air blowing outlet |
| 08/11/1999 | CN2332835Y Improved radiatin fan |
| 08/11/1999 | CN2332834Y Multi-kinds wheel dragging cyclone fan |
| 08/10/1999 | US5936321 Magnet coupling including permanent magnets disposed to define magnetic gap therebetween |
| 08/10/1999 | US5934877 Rotor with logarithmic scaled shape |
| 07/28/1999 | CN1224122A Sirocco fan |
| 07/28/1999 | CN1224121A Through-flow fan |
| 07/27/1999 | US5927940 Double-flow gas friction pump |
| 07/27/1999 | US5927720 Two-piece labyrinth seal for a centrifugal compressor balance piston |
| 07/21/1999 | EP0930472A2 Cross flow fan |
| 07/21/1999 | EP0930040A2 Low noise fan |
| 07/21/1999 | CN1223360A DC blower |
| 07/14/1999 | EP0928899A2 Once-through blower |
| 07/14/1999 | CN1222649A Turbo compressor |
| 07/07/1999 | CN2327818Y Regulated two chamber air pump structure |
| 06/30/1999 | CN1221077A Motor cooling structure for turbo compressor |
| 06/24/1999 | WO1999031391A1 Radiator cooling fan |
| 06/24/1999 | WO1999031390A1 Method for generating over-pressure gas |
| 06/09/1999 | CN2323179Y Large blast volume centrifugal fan |
| 06/08/1999 | US5910045 Air discharge unit for underfloor air conditioning and underfloor air conditioning system using same |
| 06/02/1999 | CN2321963Y Blade wheel electric fan |
| 06/02/1999 | CN1218146A Transverse fan with flow stabilizer |