| 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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| 10/18/2012 | WO2012139265A1 Centripetal pressurizing heat-generating high-temperature high-pressure ventilation compressor |
| 10/18/2012 | US20120261101 Air blower and electronic apparatus |
| 10/17/2012 | EP2510244A2 Compressor performance adjustment system |
| 10/17/2012 | CN101999044B Cross flow fan and air conditioner equipped with same |
| 10/11/2012 | WO2011130807A8 Method for controlling a compressor |
| 10/10/2012 | EP2508759A2 Cooling system equipped with an advection-type fan |
| 10/10/2012 | CN202483908U Advection fan |
| 10/10/2012 | CN1860301B Vacuum pump |
| 10/10/2012 | CN102725534A Gas compressor assembly |
| 10/04/2012 | US20120251321 Impeller and centrifugal fan |
| 10/04/2012 | DE10313054B4 Radialgebläse Centrifugal blower |
| 10/03/2012 | EP2504580A1 Centrifugal ceiling fan |
| 10/03/2012 | CN202468359U Centrifugal fan |
| 10/03/2012 | CN102705266A Compressor device |
| 09/26/2012 | CN102691666A Double-stage centrifugal air compressing device |
| 09/26/2012 | CN101862156B Electric blower and electric dust collector including the same |
| 09/20/2012 | WO2012124021A1 Cross-flow fan, blower, and air conditioner |
| 09/20/2012 | US20120237340 Active air flow adjustable fan |
| 09/19/2012 | EP2499377A1 Gas compression |
| 09/19/2012 | EP2499376A1 Gas compressor assembly |
| 09/19/2012 | CN202441620U Vacuum set for adhesives production |
| 09/19/2012 | CN202441619U Multilevel refrigeration compressor and intermediate air supplying mechanism thereof |
| 09/19/2012 | CN202441618U Vacuum pump having arc-shaped inlet |
| 09/19/2012 | CN102686887A Through-flow fan, air blower, and air conditioner |
| 09/19/2012 | CN102678582A High-speed cantilever multistage turbine vacuum pump |
| 09/19/2012 | CN101865145B Electric blower, electric dust collector carrying the same and manufacturing method thereof |
| 09/12/2012 | CN102667105A Air compression and expansion system with single shaft compressor and turbine arrangement |
| 09/12/2012 | CN102667051A Downhole tool for borehole cleaning or for moving fluid in a borehole |
| 09/07/2012 | WO2012118057A1 Cross-flow fan, casting die, and fluid delivery device |
| 09/07/2012 | WO2012117016A1 Turbomachine housing having a joint (or flange connection) sealed off with seal gas |
| 09/05/2012 | EP2495445A2 System and methods of assembling a supersonic compressor rotor including a radial flow channel |
| 09/05/2012 | EP2493593A2 Device for compressing and drying gas and a method applied thereby. |
| 09/05/2012 | CN202418027U Improved water ring vacuum pump impellor |
| 09/05/2012 | CN202417968U Improved water-ring vacuum pump |
| 08/30/2012 | US20120219440 Centrifugal ceiling fan |
| 08/30/2012 | US20120219411 Two-stage centrifugal pump |
| 08/29/2012 | CN101083405B Methods and apparatus for using an electrical machine to transport fluids through a pipeline |
| 08/22/2012 | EP2488757A1 Underwater compressor arrangement and underwater process fluid conveying arrangement equipped therewith |
| 08/22/2012 | CN102648352A Centrifugal ceiling fan |
| 08/15/2012 | CN202381350U Centrifugal compressor |
| 08/15/2012 | CN202381349U Gas centrifugal blower |
| 08/15/2012 | CN102635560A Horizontal convection fan and frame seat thereof |
| 08/09/2012 | WO2012104153A1 Stepped parting joint on a transmission housing of a fluid machine |
| 08/09/2012 | US20120201701 Centrifugal compressor having variable geometry diffuser and method thereof |
| 08/08/2012 | CN202370865U Dual-air duct internal fan |
| 08/08/2012 | CN102628446A Centrifugal vacuum pump and method for generating negative pressure |
| 08/02/2012 | DE112010002022T5 Verdichter eines Abgasturboladers Compressor of an exhaust turbocharger |
| 08/02/2012 | DE102011003509A1 Centrifugal vacuum pump for brake booster of hybrid vehicle, has sleeve shaft which comprises several holes through which inner portion of sleeve shaft communicates with air flow channels formed in centrifugal impellers |
| 08/01/2012 | EP2480791A1 Axial-radial turbomachine |
| 08/01/2012 | CN202360417U Water supply device of improved water-ring vacuum pump |
| 08/01/2012 | CN202360416U Improved water-ring vacuum pump sound attenuation mechanism |
| 08/01/2012 | CN202360415U Improved automatic separator for water ring vacuum pump |
| 08/01/2012 | CN202360414U Improved water circulation device with water-ring type vacuum pump |
| 08/01/2012 | CN202360413U Water ring vacuum pump |
| 08/01/2012 | CN202360412U Water ring vacuum pump with cooling device |
| 07/26/2012 | US20120186605 Centrifugal compressor and washing method |
| 07/25/2012 | CN202350282U Heat exchanger |
| 07/25/2012 | CN202348710U Steam pump |
| 07/25/2012 | CN202348709U Improved anti-corrosion water-ring vacuum pump |
| 07/25/2012 | CN102606493A Motorcompressor unit with torsionally flexible coupling placed in a hollow shaft of the compressor |
| 07/25/2012 | CN102606492A Fan component |
| 07/24/2012 | US8225786 Double-ended blower and volutes therefor |
| 07/18/2012 | EP2476909A1 Crossflow fan, molding die, and fluid feeding device |
| 07/18/2012 | EP2476908A1 Cross-flow fan, molding die, and fluid feed device |
| 07/18/2012 | EP2059681B1 Vacuum pumps with improved pumping channel configurations |
| 07/18/2012 | CN102597526A Blower |
| 07/18/2012 | CN102588301A Systems and methods for swirl brake tapering |
| 07/18/2012 | CN102588300A Fan device capable of guiding air in four directions |
| 07/18/2012 | CN101994707B Airflow generation device |
| 07/18/2012 | CN101737339B Air conditioner |
| 07/17/2012 | CA2631860C System, method, and apparatus for stackable multi-stage diffuser with anti-rotation lugs |
| 07/11/2012 | EP2474743A2 Barrel-type multistage pump |
| 07/11/2012 | EP2474742A2 Cooling fan |
| 07/11/2012 | CN202326344U 一种加衬板层风机 An addition layer of fans lining |
| 07/11/2012 | CN1966994B Rounded blower housing with increased airflow |
| 07/11/2012 | CN102575681A Crossflow fan, molding die, and fluid feeding device |
| 07/11/2012 | CN102562618A Centrifugal fan |
| 07/05/2012 | WO2012089837A1 Turbomachine |
| 07/05/2012 | WO2012058069A3 System and method for rapid pressurization of a motor/bearing cooling loop for a hermetically sealed motor/compressor system |
| 07/05/2012 | US20120171013 Cross-flow fan, molding die, and fluid feeder |
| 07/05/2012 | US20120170208 Rackable server system |
| 07/04/2012 | EP2472124A2 Impeller lock assembly and method |
| 07/04/2012 | EP2472118A1 Through-flow fan, air blower, and air conditioner |
| 07/04/2012 | CN202301190U 具泄压的环型风扇框体结构 With relief of ring fan casing structure |
| 07/04/2012 | CN202301170U 一种用于冷却电机的风扇 A cooling fan motor |
| 07/04/2012 | CN202301071U 一种水环真空泵供水系统 A water ring vacuum pump water supply system |
| 07/04/2012 | CN202301070U 一种水环式真空泵 A water ring vacuum pump |
| 07/04/2012 | CN102549270A Underwater compressor arrangement and underwater process fluid conveying arrangement equipped therewith |
| 07/04/2012 | CN102536851A Centrifugal vacuum pump |
| 07/04/2012 | CN102536850A Centrifugal fan |
| 07/04/2012 | CN101818750B Centrifugal fan and fan frame thereof |
| 07/03/2012 | US8210793 Radial flow compressor for a turbo-supercharger |
| 06/28/2012 | WO2012086147A1 Through-flow fan, and indoor unit for air conditioner |
| 06/28/2012 | WO2012061011A3 System and apparatus for reducing thrust forces acting on a compressor rotor |
| 06/27/2012 | EP2469095A2 Device for draining by blowing and method for draining by blowing |
| 06/27/2012 | CN1918434B 空气调节器 Air conditioner |
| 06/27/2012 | CN102518598A Centrifugal air compressor and control method and system thereof |
| 06/27/2012 | CN101796302B Current leadthrough for a vacuum pump |
| 06/27/2012 | CN101660535B Centrifugal fan and air fluid machinery using the same |
| 06/21/2012 | US20120156023 Radial Compressor And Method For Producing A Radial Compressor |