| 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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| 08/05/1998 | EP0697088A4 Zero superheat refrigeration compression system |
| 07/29/1998 | CN1188857A Improved performance centrifugal blower apparatus including at least two suction inlets, and associated blower method |
| 07/22/1998 | EP0701528A4 Grooved disk apparatus |
| 07/16/1998 | WO1998030845A1 Improved heat gun fan assembly |
| 07/01/1998 | CN2285383Y High-pressure centrifugal blower fan with air-resistant ring |
| 07/01/1998 | CN1186180A Double or multiple auger suction unit for hoods, ovens and similar appliances |
| 07/01/1998 | CN1186179A Air-cave generating pump |
| 06/25/1998 | DE19654840A1 Multistage radial turbo-compressor with inversed rotation direction |
| 06/24/1998 | EP0848788A1 A radial fan wheel |
| 06/17/1998 | EP0847798A1 Method of introducing a gas into a liquid and apparatus therefor |
| 06/16/1998 | US5765387 Device and method for thermal transfer using air as the working medium |
| 06/10/1998 | EP0846870A2 Fan casing for a unit used in hoods and ovens |
| 06/10/1998 | EP0846869A2 Double or multiple fan unit for hoods and ovens |
| 06/10/1998 | EP0846868A2 Centrifugal blower assembly |
| 06/10/1998 | EP0846866A2 Compressor for gases containing hydrogen sulfide |
| 06/10/1998 | CN1184212A Suction unit for hoods, ovens and similar appliances |
| 06/06/1998 | CA2223313A1 Suction unit for hoods, ovens and similar appliances having a casing with two or more adjacent and spaced augers |
| 06/06/1998 | CA2223211A1 Double or multiple auger suction unit for hoods, ovens and similar appliances |
| 05/27/1998 | EP0843787A1 Fluid impeller |
| 05/26/1998 | US5755555 Rotating fan having tapered disk component |
| 05/13/1998 | CN1181653A Motor having universal fan end bracket |
| 05/12/1998 | US5749704 Heat gun fan assembly |
| 05/07/1998 | WO1998019070A1 Fan rotor |
| 05/07/1998 | CA2265860A1 Fan rotor |
| 05/06/1998 | EP0840016A2 Turbomachine, in particular a barrel-type compressor |
| 05/06/1998 | EP0839284A1 Multi-stage rotary fluid handling apparatus |
| 05/05/1998 | US5746577 Centrifugal-type blower |
| 04/29/1998 | EP0838889A1 Motor having universal fan end bracket |
| 04/29/1998 | EP0837989A1 A rotor |
| 04/29/1998 | CN2280164Y Energy saving centrifugal electric fan |
| 04/29/1998 | CN1179995A Centrifugal steam melangeur |
| 04/28/1998 | US5743710 Streamlined annular volute for centrifugal blower |
| 04/28/1998 | CA2054729C Flow generating apparatus and method of manufacturing the apparatus |
| 04/09/1998 | DE19640890A1 High pressure fan to supply gaseous medium |
| 04/08/1998 | CN1178293A Variable pipe diffuser for centrifugal compressor |
| 04/01/1998 | EP0667934B1 Compressor |
| 03/04/1998 | CN1174942A Electric bolwer |
| 02/25/1998 | EP0825346A1 Inlet-stage for a double-flow gas friction pump |
| 02/18/1998 | CN1173590A Overflow fan, shaping mould of fan cometary tail, and mould mfg. method |
| 02/12/1998 | WO1998005867A1 Centrifugal ventilation device with improved performance comprising at least two suction inlets and related method |
| 02/11/1998 | EP0823555A1 Centrifugal ventilation device of enhanced performance having at least two suction inlets and related ventilation method |
| 02/11/1998 | EP0823345A2 Air-conditioning equipment for vehicles |
| 02/03/1998 | US5714819 Motor having universal fan end bracket |
| 02/03/1998 | US5713164 Pool liner installation system |
| 01/29/1998 | WO1998003795A1 Fan wheel for an inline centrifugal fan |
| 01/28/1998 | CN1171500A Method for generating natural wind and electric fan of natural wind |
| 01/28/1998 | CN1171499A Method for generating natural wind and electric fan of natural wind |
| 01/28/1998 | CN1171498A Method for generating natural wind and electric fan of natural wind |
| 01/27/1998 | US5711652 Electrically driven air pump having a drive motor balanced in situ |
| 01/27/1998 | US5711033 Air filtration and control system including head gear |
| 01/21/1998 | EP0819855A1 High-pressure blower |
| 01/14/1998 | CN1170491A Improved air control system for air bed |
| 01/14/1998 | CN1170090A Elliptical vortex wall for transverse fans |
| 01/14/1998 | CN1169845A Hot-air hair drier |
| 01/08/1998 | DE19650910C1 Compressor for gases with hydrogen sulphide constituents |
| 01/08/1998 | DE19626896A1 Fan, e.g. for cooker extractor hood |
| 01/07/1998 | EP0816687A2 Transverse fan, fan impeller forming mold, and manufacturing method of fan impeller forming mold |
| 12/29/1997 | EP0814269A2 Air moving device |
| 12/29/1997 | EP0813838A2 Suction device |
| 12/17/1997 | CN1167881A Recirculating diffuser |
| 12/10/1997 | EP0811770A1 Variable pipe diffuser for centrifugal compressor |
| 12/10/1997 | EP0811769A1 Elliptical vortex wall for transverse fans |
| 12/10/1997 | EP0811768A1 Recirculating diffuser |
| 12/09/1997 | US5695318 Diagonal fan |
| 12/09/1997 | US5695316 Friction vacuum pump with pump sections of different designs |
| 11/26/1997 | CN1166194A Engine cooler and construction machines |
| 11/18/1997 | US5688106 Turbomolecular pump |
| 11/12/1997 | CN1164619A DC blasting vane wheel |
| 11/05/1997 | EP0805275A2 Vacuum pumps |
| 10/30/1997 | DE19709193A1 Radial fan housed in chamber |
| 10/14/1997 | US5676801 Radial inflow compressor for large volumetric flows |
| 10/14/1997 | US5676470 Crossflow fan supporting device for an air conditioner |
| 10/08/1997 | EP0799979A1 Engine cooler and construction machines |
| 10/02/1997 | DE19612923A1 Air blower |
| 09/24/1997 | EP0797004A1 Electric motor driven air pump |
| 09/24/1997 | CN2263223Y Centrifugal blower with single suction double flow path |
| 09/24/1997 | CN2263222Y Easy to remove dust centrifugal fan |
| 09/24/1997 | CN2263221Y Fan blade |
| 09/23/1997 | US5669756 Recirculating diffuser |
| 09/17/1997 | EP0795689A1 Multiphase fluid treatment |
| 09/10/1997 | CN2262125Y Soundless anti-freeze self suction pump |
| 09/04/1997 | WO1997032132A1 Streamlined annular volute for centrifugal blower |
| 09/03/1997 | CN2261522Y Centrifugal ventilator |
| 08/21/1997 | DE19705318A1 Double-ended centrifugal fan |
| 08/20/1997 | EP0789976A1 Improved air control system for an air bed |
| 08/20/1997 | EP0789815A1 Friction-type vacuum pump with cooling system |
| 08/20/1997 | CN1157376A Cross flow type blower |
| 08/13/1997 | CN2259515Y Double-speed fire-fighting high temperature smoke-eliminating fan |
| 08/13/1997 | CN2259514Y Blade type vacuum pump |
| 08/12/1997 | US5655874 Elliptical vortex wall for transverse fans |
| 07/30/1997 | CN2258549Y Electric fan with cold or hot wind |
| 07/29/1997 | US5652484 For controlling the firmness of a fluid supported mattress |
| 07/29/1997 | US5651661 Turboexpander |
| 07/23/1997 | EP0785362A1 Cross flow fan impeller |
| 07/02/1997 | EP0781927A1 Apparatus for compressing gas or vapour media |
| 07/02/1997 | EP0781523A1 Vacuum motor bearing protection system |
| 06/18/1997 | CN2256479Y Three-purpose drying heat pump |
| 06/18/1997 | CN2256478Y Rotary air compressor |
| 06/18/1997 | CN1152081A Cross flow fan for air conditioner |
| 06/17/1997 | US5639208 Rotary turbine and rotary compressor |