| 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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| 02/19/2013 | US8376701 Multi-stage centrifugal pump assembly (shaft) |
| 02/14/2013 | WO2013021664A1 Centrifugal compressor |
| 02/13/2013 | CN102933855A Compressor housing for supercharger and production method for same |
| 02/13/2013 | CN102927019A 离心式风扇 Centrifugal fan |
| 02/07/2013 | WO2013018359A1 Once through fan |
| 02/06/2013 | CN202718885U Tandem type water ring vacuum pump |
| 02/06/2013 | CN102918277A Method for controlling a compressor |
| 01/31/2013 | US20130028720 Centrifugal fan |
| 01/31/2013 | US20130028710 Compact low noise efficient blower for cpap devices |
| 01/30/2013 | CN202707523U Centrifugal fan for corn harvester |
| 01/30/2013 | CN102900677A Integral centrifugal pipeline fan |
| 01/30/2013 | CN102900676A Cross-flow fan |
| 01/30/2013 | CN102200134B Swirling air intake centrifugal fan |
| 01/24/2013 | WO2013011839A1 Electric supercharger, method for assembling same, and internal combustion engine |
| 01/24/2013 | WO2013011105A2 Multistage centrifugal turbomachine |
| 01/24/2013 | US20130022445 System for Reducing Compressor Oil Consumption |
| 01/24/2013 | CA2842022A1 Multistage centrifugal turbomachine |
| 01/23/2013 | EP2549117A1 Fan, metallic mold, and fluid delivery device |
| 01/23/2013 | EP2549114A1 Cross-flow fan and air conditioner |
| 01/23/2013 | EP2547873A1 A centrifugal compressor |
| 01/23/2013 | CN102893033A 离心式压缩机 Centrifugal compressors |
| 01/23/2013 | CN102892976A A centrifugal compressor |
| 01/23/2013 | CN102889218A Improved belt type vacuum pump |
| 01/17/2013 | US20130017079 Debris blowing and/or vacuum appliance |
| 01/17/2013 | US20130017078 Impeller arrangement |
| 01/16/2013 | CN102878093A 离心式风扇 Centrifugal fan |
| 01/16/2013 | CN101523056B 离心压缩机 Centrifugal compressors |
| 01/15/2013 | US8353665 Impeller for two-chamber extracting blower |
| 01/10/2013 | US20130011240 Fan arrangement |
| 01/09/2013 | EP2543889A1 Electric blower and electric cleaner using same |
| 01/09/2013 | EP2543887A2 Integral scroll and gearbox for a compressor with speed change option |
| 01/09/2013 | EP2543886A2 Integral scroll and gearbox for a compressor with speed change option |
| 01/09/2013 | EP2543885A1 Fan |
| 01/09/2013 | CN202659524U Vacuum set |
| 01/03/2013 | WO2013002237A1 Compressor with cooling function |
| 01/03/2013 | WO2013002204A1 Turbocompressor |
| 01/03/2013 | US20130004307 Impeller and centrifugal fan having the same |
| 01/02/2013 | CN202646038U Liquid ring vacuum pump circulating system |
| 01/02/2013 | CN102852828A High-flow water ring vacuum pump |
| 12/27/2012 | WO2012174725A1 Vortex blower structure |
| 12/27/2012 | US20120328430 Spiral tower fan |
| 12/26/2012 | EP2538087A1 Impeller, electric air blower using same, and electric cleaner using electric air blower |
| 12/26/2012 | CN202628548U Integrally assembled centrifugal compressor set with supporting and adjusting devices |
| 12/26/2012 | CN102242720B Bidirectional air inlet centrifugal fan |
| 12/20/2012 | US20120321495 Centrifugal blower with asymmetric blade spacing |
| 12/20/2012 | US20120321494 Centrifugal blower with asymmetric blade spacing |
| 12/20/2012 | US20120321493 Centrifugal blower with asymmetric blade spacing |
| 12/19/2012 | EP2535514A2 Rotor structure including an internal hydraulic tension device |
| 12/19/2012 | CN202612130U Air separating compressor |
| 12/19/2012 | CN202612129U Multistage double-support centrifugal blower with small flow and low pressure ratio |
| 12/13/2012 | WO2012169100A1 Air conditioner |
| 12/12/2012 | EP2532058A2 Gas laser having radial and axial gas bearings |
| 12/12/2012 | CN102823086A Gas laser having radial and axial gas bearings |
| 12/12/2012 | CN102822531A Fan, metallic mold, and fluid delivery device |
| 12/12/2012 | CN102094835B 螺旋压缩机 Screw compressor |
| 12/06/2012 | WO2012166563A1 Supersonic compressor startup support system |
| 12/06/2012 | US20120308371 Centrifugal compressor having an asymmetric self-recirculating casing treatment |
| 12/06/2012 | US20120308370 Centrifugal fan |
| 12/06/2012 | US20120306205 Novel systems for increasing efficiency and power output of in-conduit hydroelectric power system and turbine |
| 12/06/2012 | CA2836258A1 Supersonic compressor startup support system |
| 12/05/2012 | EP2530327A2 Compact low noise efficient blower for CPAP devices |
| 12/05/2012 | CN202579304U Water ring pump and locked impeller structure thereof |
| 12/05/2012 | CN202579220U Multi-stage centrifugal machine |
| 12/05/2012 | CN102812253A Cross-flow Fan And Air Conditioner |
| 12/05/2012 | CN102808785A Secondary high-speed centrifugal compressor |
| 12/05/2012 | CN101737870B Indoor unit for air conditioning apparatus |
| 12/05/2012 | CN101688541B Compressor |
| 12/05/2012 | CN101265917B Gear drive turbine compressor |
| 11/28/2012 | CN202560647U Centrifugal compressor |
| 11/28/2012 | CN202560577U Water ring vacuum pump used for producing automobile chemical industrial appliances |
| 11/28/2012 | CN102062109B Vacuum pump |
| 11/28/2012 | CN101639074B Wet method dedusting system of centrifugal axial flow-type vacuum pump and corresponding dust collector and floor cleaning machine |
| 11/21/2012 | EP2525101A2 Diffuser divider |
| 11/21/2012 | EP2525100A1 Advection-type fan |
| 11/21/2012 | CN202545290U Liquid-ring vacuum pump closed loop system |
| 11/21/2012 | CN202545289U High-speed cantilever multi-stage turbine vacuum pump |
| 11/21/2012 | CN102788027A Water ring vacuum pump with vapor liquid separator |
| 11/21/2012 | CN102787905A Engine air feed device and automobile equipped with same |
| 11/21/2012 | CN101850147B Multiple stage blower and enclosure therefor |
| 11/15/2012 | US20120288363 Ceiling-mounted indoor unit for air conditioning apparatus |
| 11/14/2012 | EP2522858A2 Radial fan for suction hood |
| 11/14/2012 | CN102782330A Axial-radial turbomachine |
| 11/13/2012 | US8311674 Robotic vacuum cleaner |
| 11/07/2012 | CN202520579U Water-ring type vacuum pump |
| 11/07/2012 | CN101124409B Differential pump suction vacumm system and differential vacuuming method |
| 11/01/2012 | WO2012147182A1 Shaft-type cross-flow fan and method for manufacturing same |
| 11/01/2012 | US20120275915 Centrifugal fan |
| 10/31/2012 | EP2518324A2 Cooling fan |
| 10/31/2012 | EP2516865A1 Fan impeller and associated fan shroud, in particular for a motor vehicle |
| 10/31/2012 | EP2516793A1 Downhole tool for borehole cleaning or for moving fluid in a borehole |
| 10/31/2012 | CN102762873A Impeller, electric air blower using same, and electric cleaner using electric air blower |
| 10/31/2012 | CN102758780A Centrifugal fan |
| 10/31/2012 | CN102758779A No-volute fan for container type cloud computing center |
| 10/26/2012 | WO2012142780A1 Minitype vacuum hydraulic pump |
| 10/25/2012 | US20120269621 Multiblade air blower |
| 10/25/2012 | US20120266887 Double-ended blower and volutes therefor |
| 10/25/2012 | DE10223526B4 Kühlvorrichtung von hoher Leistung Cooling device of high performance |
| 10/24/2012 | EP2513485A1 Supersonic compressor rotor |
| 10/24/2012 | CN202500830U Completely internal cooling centrifugal compressor |
| 10/24/2012 | CN102753832A Supersonic compressor rotor |