| 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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| 12/23/2009 | CN101608631A Electric blower and electric duct collector equipped with the same |
| 12/23/2009 | CN101608630A Electric blower and electric duct collector equipped with the same |
| 12/22/2009 | CA2543460C Crossover two-phase flow pump |
| 12/17/2009 | WO2009056207A3 Air exhaust device |
| 12/16/2009 | CN201363296Y Wearable fan |
| 12/16/2009 | CN201363295Y Wind wheel |
| 12/16/2009 | CN201363294Y Compressor performance testing system |
| 12/16/2009 | CN101601953A Smoke filter |
| 12/09/2009 | CN201358961Y Inlet prerotator and high-speed centrifugal blower therewith |
| 12/09/2009 | CN201358960Y Blade type diffuser and high-speed centrifugal blower therewith |
| 12/09/2009 | CN201358953Y Single-stage low-speed centrifugal blower |
| 12/09/2009 | CN201358951Y Multistage low-speed centrifugal blower |
| 12/09/2009 | CN201358944Y Centrifugal blower |
| 12/09/2009 | CN201358928Y High-speed centrifugal blower |
| 12/02/2009 | EP2128451A1 Sirocco fan and air conditioner |
| 12/02/2009 | EP1423203B1 Compact centrifugal blower with annular stator |
| 12/02/2009 | CN201354759Y Medium knot with improved median plate of cross flow fan |
| 12/02/2009 | CN201354743Y Middle-section blank for cross-flow fan |
| 12/02/2009 | CN201354742Y Median segment of cross-flow fan blade |
| 12/02/2009 | CN101595310A Sirocco fan and air conditioner |
| 12/02/2009 | CN101594841A Device and method for opening an airway |
| 12/02/2009 | CN100564889C Centrifugal multi-blade fan |
| 11/26/2009 | WO2009141222A1 Multi-stage vacuum pump |
| 11/26/2009 | WO2009140854A1 Multi-function centrifugal fan |
| 11/25/2009 | EP2122178A1 Air conditioning apparatus equipped with a compressor and a vortex |
| 11/25/2009 | CN201351620Y Air entrapping structure and air extracting structure in compressor |
| 11/25/2009 | CN101588035A Salt pumping device |
| 11/25/2009 | CN101586575A Centrifugal fan and electronic device using same |
| 11/25/2009 | CN101586572A Energy-saving muffling centrifugal fan |
| 11/24/2009 | US7621717 Suction filter, turbo compressor, and method of packaging the compressor |
| 11/18/2009 | CN201347871Y Combined vortex vacuum pump |
| 11/18/2009 | CN201347870Y Air pump capable of filling and exhausting air |
| 11/18/2009 | CN201347869Y Improved cross-flow fan structure |
| 11/12/2009 | WO2009136585A1 Cross‑flow fan and air conditioner equipped with same |
| 11/12/2009 | WO2009136584A1 Cross‑flow fan and air conditioner equipped with same |
| 11/12/2009 | WO2009108014A3 Turbo compressor using mass-containing liquid |
| 11/05/2009 | WO2009132956A1 Arrangement with an electric motor and a pump |
| 11/04/2009 | EP2113671A1 Arrangement with an electric motor and a pump |
| 10/29/2009 | CA2720678A1 Gas compression system |
| 10/28/2009 | CN100554700C Turbo compressor |
| 10/28/2009 | CN100554698C Vacuum pumping system |
| 10/27/2009 | CA2314532C Blower |
| 10/21/2009 | EP1664545B1 Turbocharger comprising a compressor having two back-to-back impellers |
| 10/21/2009 | CN201330717Y Adjustable centrifugal type compressor |
| 10/21/2009 | CN101560987A Centrifugal compressor with surge control, and associated method |
| 10/21/2009 | CN101560986A Cement dust collecting fan |
| 10/21/2009 | CN100552236C Centrifugal fan |
| 10/21/2009 | CN100552234C Centrifugal compressor rotor mechanism |
| 10/21/2009 | CN100552231C Impeller of multiblade blower and method of manufacturing the same |
| 10/21/2009 | CN100552230C Cross flow fan and air conditioner with the fan |
| 10/14/2009 | EP2108844A2 Turbo vacuum pump |
| 10/14/2009 | CN201326547Y Internal-spiral constant pressure pump of external spiral body |
| 10/14/2009 | CN101555889A High-pressure safety injection pump for nuclear power station |
| 10/14/2009 | CN101555886A Containment spray pump for nuclear power station |
| 10/07/2009 | EP2107250A2 Turbocharger comprising a compressor having two back-to-back impellers |
| 10/07/2009 | CN101550943A Automatic control turbine synchronous discharging and sucking pump |
| 10/06/2009 | CA2492733C Blower with double inlet wheel |
| 10/01/2009 | WO2009118476A1 Tower fan |
| 09/30/2009 | EP2105615A2 Turbo vacuum pump |
| 09/30/2009 | EP2104787A1 Radial fan and a high-pressure cleaning device having a radial fan |
| 09/30/2009 | CN201318295Y Cabinet-type air conditioner indoor machine centrifugal fan |
| 09/30/2009 | CN201318294Y Air passage of cross flow fan |
| 09/24/2009 | WO2009022103A3 Gas turbine engine |
| 09/23/2009 | CN201314299Y High-pressure vortex air pump |
| 09/23/2009 | CN101539150A Ventilator driven by single-phase electric motor |
| 09/17/2009 | WO2009112064A1 Turbo engine with improved compensating piston gasket |
| 09/17/2009 | US20090232676 Single stage dual-entry centrifugal compressor, radial turbine gas generator |
| 09/16/2009 | EP2099397A2 Device and method for opening an airway |
| 09/16/2009 | EP2099382A1 Suction device for dental, medical and industrial purposes |
| 09/16/2009 | EP2024646B1 Multi-stage turbo compressor |
| 09/15/2009 | CA2412773C In-line centrifugal fan |
| 09/10/2009 | DE102009003558A1 Lüftungssystem und Verfahren zur Montage desselben Ventilation system and method for the same assembly |
| 09/09/2009 | EP2098731A2 Condensate pump |
| 09/09/2009 | CN101526090A Turbo compressor and refrigerator |
| 09/08/2009 | CA2303970C Medical ventilator |
| 09/03/2009 | WO2009108014A2 Turbo compressor using mass-containing liquid |
| 09/02/2009 | CN101523055A Improvements in compressors units |
| 09/02/2009 | CN101520684A Heat radiator for notebook computer |
| 08/27/2009 | WO2009105602A1 Centrifugal compressor assembly and method |
| 08/27/2009 | WO2009105600A1 Centrifugal compressor assembly and method |
| 08/27/2009 | WO2009103578A1 Ventilator wheel or fan wheel with antibacterial coating |
| 08/27/2009 | US20090214341 Rotatable axial fan |
| 08/27/2009 | CA2712842A1 Centrifugal compressor assembly and method |
| 08/27/2009 | CA2712837A1 Centrifugal compressor assembly and method |
| 08/26/2009 | CN201297261Y Multistage centrifugal fan |
| 08/26/2009 | CN201297260Y AC centrifugal fan |
| 08/26/2009 | CN101517241A Vacuum pump |
| 08/26/2009 | CN101517240A Molecular drag pumping mechanism |
| 08/26/2009 | CN101514705A 氯化氢压缩机 Hydrogen chloride compressor |
| 08/26/2009 | CN100532958C Heat exchanger with fins and producing method thereof |
| 08/26/2009 | CN100532860C Centrifugal fan with anti-counterflow structure |
| 08/20/2009 | WO2009074834A4 Ring wing-type actinic fluid drive |
| 08/19/2009 | CN201292978Y High-pressure centrifugal blower |
| 08/19/2009 | CN201292959Y Dry vacuum pump |
| 08/19/2009 | CN201292958Y Vortices type vacuum pump |
| 08/19/2009 | CN201292957Y Cross flow fan for air conditioner |
| 08/19/2009 | CN100529413C Centrifugal fan, heat radiation device possessing the centrifugal fan and electronic device using the heat radiation device |
| 08/12/2009 | EP2088325A2 Turbo vacuum pump |
| 08/12/2009 | CN201288674Y Multi-stage centrifugal pump with starting and stopping device |
| 08/12/2009 | CN201288671Y Dual rotary body internal rotation constant pressure pump |