| 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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| 06/30/2004 | EP1433929A2 Turbomachine arrangement |
| 06/29/2004 | US6755611 Vacuum pump |
| 06/24/2004 | DE10336099A1 Cleaning hospital room air involves passing air through germ filter and blowing it out horizontally at lower flow rate |
| 06/16/2004 | CN1153907C Turbo-compressor device |
| 06/16/2004 | CN1153906C Turbo-compressor device |
| 06/10/2004 | US20040109753 Cross flow fan |
| 06/09/2004 | DE10302597A1 Gebläse mit mehreren Gebläserädern Blower with multiple impellers |
| 06/02/2004 | EP1423203A2 Compact centrifugal blower with annular stator |
| 06/01/2004 | US6745025 Time-of-day call forwarding in a wireless centrex services system |
| 05/27/2004 | US20040101399 Blower with a plurality of impellers |
| 05/26/2004 | EP1422423A1 Apparatus with evacuatable chamber |
| 05/19/2004 | CN2616725Y Assembled centrifugal compressor |
| 05/19/2004 | CN1497187A Rotary blade type air diffuser for centrifugal compressor |
| 05/19/2004 | CN1150379C Apparatus for minimising noise in fan unit |
| 05/13/2004 | US20040091351 Turbomolecular vacuum pump with rows of rotor blades and rows of stator blades |
| 05/12/2004 | CN1495365A Fan |
| 05/04/2004 | US6729858 Thrust bearing cooling unit for a turbo compressor |
| 04/27/2004 | US6726443 Micromachines |
| 04/27/2004 | CA2117343C Multiphase fluid treatment |
| 04/21/2004 | CN1490529A Air charging systems |
| 04/14/2004 | EP1155222A4 Casing design for rotating machinery and method for manufacture thereof |
| 04/14/2004 | CN2611641Y Air interchanger |
| 04/14/2004 | CN1489662A Double layer acoustic liner and fluid pressurizing device and method utilizing same |
| 04/13/2004 | US6719541 Fan assembly with application to vacuum cleaners |
| 04/13/2004 | US6719534 Vehicle seat blower unit with a motor mounted within a scroll housing and a cooling motor attachment bracket |
| 04/06/2004 | US6715987 Stator blading of return channels for two-dimensional centrifugal stages of a multi-stage centrifugal compressor with improved efficiency |
| 03/24/2004 | CN1483941A Air blower |
| 03/18/2004 | WO2002070139A3 Compact centrifugal blower with annular stator |
| 03/18/2004 | US20040050090 Arrangement for multi-stage heat pump assembly |
| 03/17/2004 | CN1482367A Air conditioning machinery |
| 03/11/2004 | DE10336100A1 Operating method for radial ventilator rotor with gas discharged from outer side of rotor released non-directionally esp. in plane at right angles to rotor axis |
| 03/03/2004 | EP1392981A1 Compressor unit comprising a centrifugal compressor and an electric motor |
| 03/02/2004 | US6700273 Gas transfer machine |
| 03/02/2004 | US6698929 Turbo compressor |
| 03/02/2004 | CA2312081C Cooling system for electromagnetic bearings of a turbocompressor |
| 02/26/2004 | US20040037720 Fan with increased air flow |
| 02/26/2004 | US20040035093 Vacuum cleaner |
| 02/25/2004 | EP1390618A2 Multi-stage centrifugal compressor driven by integral high speed motor |
| 02/25/2004 | EP1102936B1 Rotation device |
| 02/25/2004 | EP1101037B1 Rotation device with drive motor |
| 02/24/2004 | CA2391110C Multiphase fluid treatment |
| 02/19/2004 | US20040033153 Fluid transport system and method therefor |
| 02/19/2004 | US20040033130 Compound friction vacuum pump |
| 02/18/2004 | EP1389288A1 Air evacuating ventilator |
| 02/18/2004 | EP1135612B1 Impeller to shaft coupling |
| 02/18/2004 | CN2603865Y 携带式气泵 Portable pump |
| 02/17/2004 | US6692224 Turbo compressor |
| 02/17/2004 | US6692223 Air conditioner |
| 02/11/2004 | CN1474067A Thrust bearing liner fixing structure of centrifugal compressor |
| 02/11/2004 | CN1138073C Fan assembly |
| 02/10/2004 | US6688843 Once-through pump |
| 02/10/2004 | US6688379 Heat dissipation device with high efficiency |
| 02/10/2004 | US6688117 Method of improving the performance of heat-pump installations for making ice |
| 02/05/2004 | US20040020203 High-pressure ratio turbocharger |
| 02/04/2004 | EP1386378A1 Improved fan for gas discharge laser |
| 02/04/2004 | EP0993555B1 Apparatus for conditioning air |
| 02/04/2004 | CN1472440A Fluid conveying system and method |
| 02/03/2004 | US6685430 Compact centrifugal blower with annular stator |
| 01/22/2004 | US20040013514 Friction vacuum pump |
| 01/21/2004 | CN2600625Y Flabellum type refrigeration compressor |
| 01/21/2004 | CN1135305C Refrigerating compressor and centrifugal compressor with improved structure and operating method thereof |
| 01/20/2004 | US6679682 Turbofan in air conditioner |
| 01/15/2004 | WO2004005724A1 Regenerative fluid pump and stator for the same |
| 01/13/2004 | US6676384 Gas friction pump |
| 01/07/2004 | EP1378669A1 A method and apparatus for minimizing noise from fan filter unit |
| 01/06/2004 | US6672828 Vacuum pump |
| 01/06/2004 | US6672827 Vacuum pump |
| 01/02/2004 | EP1376036A1 Deep-freezing apparatus, particularly for food products, with high efficiency of heat exchange between the cryogenic gas and the products to be frozen |
| 01/02/2004 | EP1375925A2 Centrifugal blower with cooling fin |
| 12/17/2003 | CN1461628A Centrifugal blower for vacuum cleaner |
| 12/16/2003 | US6663698 Fume extraction apparatus and assembly |
| 12/11/2003 | US20030228215 Thin-form centrifugal fan |
| 12/10/2003 | EP1121747B1 Assembly of rotatable members |
| 12/10/2003 | CN1460817A Transverse flow fan and air conditioner with the same |
| 12/04/2003 | US20030223860 Vacuum pump |
| 11/27/2003 | WO2003026474A3 Robotic vacuum cleaner |
| 11/27/2003 | WO2002086324A3 Multi-stage centrifugal compressor |
| 11/27/2003 | US20030219337 Pumping stage for a vacuum pump |
| 11/25/2003 | US6653755 Radial air flow fan assembly having stator fins surrounding rotor blades |
| 11/19/2003 | EP1363027A1 Vacuum pump |
| 11/19/2003 | CN1456842A Turbine fan and air conditioner therewith |
| 11/18/2003 | US6648590 Parallel fan |
| 11/13/2003 | US20030209024 Turbo fan and air conditioner having the same applied thereto |
| 11/12/2003 | EP1361367A2 Turbo fan and air conditioner having the same applied thereto |
| 11/12/2003 | EP1361366A2 Pumping stage for a vacuum pump |
| 11/12/2003 | CN1455187A Transverse-flow fan and air conditioner using same |
| 11/06/2003 | US20030206800 In-line centrifugal fan |
| 11/05/2003 | CN1126863C Device for preventing foreign substance from winding in working engine |
| 11/04/2003 | US6641376 Friction vacuum pump |
| 11/04/2003 | US6641364 Apparatus for minimizing noise in a fan unit |
| 11/04/2003 | CA2319607C A roto-dynamic high pressure machine |
| 10/30/2003 | US20030202890 Fan assembly |
| 10/30/2003 | US20030202880 Wind wheel assembly of separable air conditioner |
| 10/29/2003 | EP1356169A1 Double layer acoustic liner and a fluid pressurizing device and method utilizing same |
| 10/29/2003 | CN1126230C Motor having universal fan end bracket |
| 10/28/2003 | US6638010 Gas friction pump |
| 10/22/2003 | EP1295039B1 Arrangement for multi-stage heat pump assembly |
| 10/21/2003 | CA2312085C Cooling means for the motor of a turbocompressor |
| 10/16/2003 | US20030194311 Cross flow fan and air conditioner fitted with the same |
| 10/16/2003 | US20030192337 Cross flow fan and air conditioner fitted with the same |