| 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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| 06/12/1997 | WO1997021034A1 Radial steam-mixing machine |
| 06/05/1997 | DE19545031A1 Radialdampfmischmaschine Radial vapor mixing machine |
| 06/04/1997 | CN2255516Y Centrifugal fan |
| 06/04/1997 | CN1035080C Double centrifugal fluid transporting method and its appliance |
| 05/28/1997 | EP0775829A1 Turbomolecular vacuum pumps |
| 05/28/1997 | EP0775828A1 Turbomolecular vacuum pumps |
| 05/14/1997 | EP0773367A1 Turbo-molecular pump |
| 05/14/1997 | CN1149696A Cross airflow fan support device for air conditioner |
| 05/02/1997 | EP0770781A1 Turbomolecular vacuum pumps |
| 04/24/1997 | WO1997014874A1 Engine cooler and construction machines |
| 04/24/1997 | DE19539121A1 Gas-liquid mixing process and device for aeration of waste water |
| 04/23/1997 | CN1148155A Air conditioning device |
| 04/16/1997 | EP0740763A4 An electric air heater |
| 04/16/1997 | CN2252256Y 分段式多级泵 Split Multistage Pump |
| 04/16/1997 | CN1034606C Centrifugal compressor with a flow-stabilizing casing |
| 04/16/1997 | CN1034605C Stabilizing device for extending the characteristic diagram of compressor |
| 04/09/1997 | CN2251638Y Vacuum flexible paddle pump |
| 04/08/1997 | US5619612 Electric air heater with cage-shaped heating element comprised of resistance alloy strips and inclined guide vanes |
| 04/01/1997 | US5616011 Device for withdrawing fluids from two separate sources |
| 03/26/1997 | CN2250438Y Liquid medium full closed high vacuum degree vacuum pump |
| 03/18/1997 | US5611667 Transverse fan |
| 03/18/1997 | US5611664 Apparatus to achieve passive damping of flow disturbances in a centrifugal compressor to control compressor surge |
| 03/18/1997 | US5611663 Geared multishaft turbocompressor and geared multishaft radial expander |
| 03/13/1997 | WO1997009572A1 Outlet unit for underfloor air conditioning and underfloor air conditioning system using same |
| 03/13/1997 | WO1997009535A1 A radial fan wheel |
| 02/26/1997 | CN1143719A Method for pumping high-vacuum degree |
| 02/25/1997 | US5605435 Method and apparatus to achieve passive damping of flow disturbances in a centrifugal compressor to control compressor surge |
| 02/20/1997 | WO1997006369A1 Fluid impeller |
| 02/19/1997 | CN2247731Y Vertical top inlet self-priming centrifugal pump |
| 02/10/1997 | CA2175540A1 Transverse fan assembly |
| 02/05/1997 | EP0757179A1 Compression device |
| 02/05/1997 | CN1142017A Multi-stage centrifugal compressor, impeller and production method of same |
| 02/04/1997 | US5599162 Transverse blower fan assembly |
| 01/30/1997 | WO1997003291A1 A rotor |
| 01/23/1997 | WO1997002456A1 Cross flow fan and outdoor unit for an air-conditioner |
| 01/22/1997 | CN2245682Y Multi-stage centrifugal pump with balance water return line in it |
| 01/21/1997 | US5595477 Vacuum pumping stand |
| 01/08/1997 | EP0468030B1 Gas sampling device with improved mixed flow fan |
| 01/08/1997 | CN1139738A DC brush free fan |
| 01/02/1997 | DE19523661A1 Self-supporting turbo-rotor e.g. for multistage pumps, blowers compressor and turbines |
| 01/01/1997 | CN1139192A Drying scavenger for use in bathroom |
| 12/27/1996 | EP0749533A1 Compressor |
| 12/24/1996 | US5586861 Airflow measuring centrifugal fan |
| 12/11/1996 | EP0593747B1 Compressor assembly with staked shell |
| 12/03/1996 | US5580214 Multiphase fluid treatment |
| 11/26/1996 | US5577881 High performance turbomolecular vacuum pumps |
| 11/20/1996 | CN1136141A Method and products for producing centrifugal blowers of fluid-bed boiler by performance block diagram |
| 11/19/1996 | US5575615 Multiphase fluid treatment |
| 11/14/1996 | WO1996035878A1 Multi-stage rotary fluid handling apparatus |
| 11/06/1996 | EP0740763A1 An electric air heater |
| 09/25/1996 | EP0733807A1 Multistage centrifugal compressor, impeller for multistage centrifugal compressor and method for producing the same |
| 09/25/1996 | CN2236035Y Energy-saving fan special for oil gun |
| 09/25/1996 | CN1131733A Rotating fan having tapered disk component |
| 09/24/1996 | US5558499 Centrifugal blower wheel with backward curved blades |
| 09/19/1996 | WO1996028662A1 Centrifugal hydraulic machine |
| 09/11/1996 | CN2235038Y Multi-function health micro-fan |
| 08/22/1996 | CA2143022A1 Hydraulic motor |
| 08/20/1996 | US5547341 Device for thermal transfer using air as the working medium |
| 08/20/1996 | US5547338 Friction pump with magnetic bearings disposed in the impeller |
| 08/13/1996 | US5545006 Multi-stage rotary fluid handling apparatus |
| 08/08/1996 | DE19503711A1 Radial compressor for pneumatic jet drives and stationary plants |
| 07/24/1996 | EP0723080A1 Vacuum pumping system |
| 07/16/1996 | US5536148 Turbo vacuum pump |
| 07/16/1996 | US5536141 Method and apparatus to achieve passive damping of flow disturbances in a centrifugal compressor to control compressor surge |
| 07/03/1996 | EP0719942A2 Transverse fan with randomly varying J-shape tongue |
| 07/03/1996 | EP0529099B1 Multi-layer disk fan with blades |
| 06/26/1996 | CN2229983Y Guiding vane and volute casing combination type multi-stage miniature pump |
| 06/26/1996 | CN1125427A Grooved disk apparatus |
| 06/25/1996 | US5530766 Noise reducing apparatus of a cyclo-fan |
| 06/19/1996 | EP0717194A1 Multivane centrifugal fan |
| 06/19/1996 | CN2229561Y Coil pipe for low noise, low-power-consumption tubular fan |
| 06/12/1996 | CN2228999Y Inlaid combined middle ring structure for ceiling fan |
| 06/11/1996 | US5525107 Indoor hanging window fan |
| 06/05/1996 | EP0715081A1 Rotating fan having tapered disk component |
| 06/05/1996 | EP0244487B2 Cross-flow cooling fan device |
| 06/05/1996 | CN2228669Y Parameter-account number installation device |
| 06/05/1996 | CN1123889A Portable non-electric fan |
| 05/30/1996 | WO1996015722A1 X-ray imaging device |
| 05/28/1996 | US5520507 Method and apparatus to achieve passive damping of flow disturbances in a centrifugal compressor to control compressor surge |
| 05/21/1996 | US5518363 Rotary turbine |
| 05/15/1996 | EP0711924A1 Electric motor-driven air pump |
| 05/15/1996 | CN2227219Y Exhaust belt type cooler blast device |
| 05/15/1996 | CN1122630A Zero superheat refrigeration compression system |
| 05/09/1996 | WO1996013947A1 Improved air control system for an air bed |
| 05/09/1996 | WO1996013667A1 Friction-type vacuum pump with cooling system |
| 05/08/1996 | CN1121986A 回转式压缩机 Rotary Compressor |
| 05/02/1996 | DE4438812A1 Reibungsvakuumpumpe mit Kühlung Friction vacuum pump with cooling |
| 04/30/1996 | US5511939 Multi-blades fan device |
| 04/23/1996 | US5509154 Air control system for an air bed |
| 04/17/1996 | CN1031598C Apparatus for drawing off and dispensing predetermined and constant quantity of liquid |
| 04/10/1996 | CN2224304Y Drum-type blast |
| 04/02/1996 | US5503523 Transmission-driven compressor |
| 03/27/1996 | CN2223374Y Efficient, energy-saving and low-noise transformer fan |
| 03/20/1996 | EP0701528A1 Grooved disk apparatus |
| 03/20/1996 | CN1118844A Transversly blowing fan and method and apparatus for making same |
| 03/20/1996 | CN1118843A Transversly blowing fan |
| 03/19/1996 | US5499900 Vortex flow blower |
| 03/13/1996 | EP0701063A1 Cross flow fan |
| 03/12/1996 | US5498125 High performance turbomolecular vacuum pumps |
| 02/28/1996 | EP0593632B1 Radial fan |