Patents for F04D 3 - Axial-flow pumps (1,557)
06/2013
06/20/2013US20130156551 Information processing apparatus and image forming apparatus
06/05/2013EP2598753A1 Screw type pump or motor
06/05/2013CN202971204U Impeller and diffuser full compression helical axial-flow multiphase pump
05/2013
05/29/2013EP2596245A2 Fluid dose dispensing apparatus
05/28/2013US8449252 Double-stacked blade ceiling fan and method of operation and method of circulating air
05/23/2013US20130129503 Expandable impeller pump
05/23/2013US20130129490 Fan assembly
05/16/2013US20130123442 Pump for loop reactor
05/16/2013CA2794035A1 Axial compressor for fluid-flow machines
05/09/2013US20130115046 High speed swirling type centrifugal revolving pipeline device
05/02/2013US20130108412 Uniaxial eccentric screw pump
05/01/2013CN202914371U Axial-flow type fluid driving device
04/2013
04/24/2013CN103062071A Axial-flow type integrated dewatering pump
04/18/2013WO2013054037A1 Archimedean screw and installation of the pump or hydroelectric power station type fitted with at least one such screw
04/18/2013WO2011157409A3 Electric compressor
04/18/2013DE112011102353T5 Radial komprimierbarer und expandierbarer Rotor für eine Pumpe mit einem Schaufelblatt Radially compressible and expandable for a pump rotor having an airfoil
04/17/2013CN202883386U Cone-shaped screw pump
04/17/2013CN103052805A Screw type pump or motor
04/11/2013US20130086896 Hydrodynamic coupling
04/03/2013CN101449064B Compact low noise efficient blower for CPAP devices
03/2013
03/27/2013CN202833187U Accelerating agent adding spiral pump
03/27/2013CN202833037U Oil pump of closed compressor and closed piston compressor
03/27/2013CN103002930A Radially compressible and expandable rotor for a pump having an impeller blade
03/21/2013US20130068412 Pump Assembly, System and Method for Controlled Delivery of Molten Metal to Molds
03/20/2013CN202811376U Vertical screw pump
03/15/2013CA2786515A1 Heat dissipating lamp device having electric turbine axial fan
03/13/2013CN202789561U Axial flow pump used for velocity measurement for particle picture
03/13/2013CN102966591A Axial flow type fluid driving device
03/07/2013US20130058782 Vacuum pump
03/07/2013DE112010004978T5 Pumpeneinrichtung mit einer Detektionseinrichtung Pump means having a detection device
03/06/2013CN202768406U Spiral casting pump
03/06/2013CN202768405U All-metal screw rod type oil-well pump for deep well
03/05/2013US8388310 Turbine disc sealing assembly
02/2013
02/28/2013US20130051977 Adjustable vane diffuser insert for electrical submersible pump
02/27/2013EP2561231A2 Archimedes screw assembly
02/27/2013CN102943761A Small-flow metal melt pump
02/21/2013US20130045094 High-vacuum pump
02/14/2013WO2013021014A1 Rotary pump comprising a rotor and delivery elements
02/14/2013US20130041202 Fluid pump having a radially compressible rotor
02/13/2013EP2557313A1 Rotary pump with a rotor and transport elements
02/13/2013CN102933852A Liquid ring pump and method for operating a liquid ring pump
02/07/2013DE112010003746T5 Komprimierbarer Rotor für eine Fluidpumpe Compressible rotor for a fluid pump
02/06/2013CN202718873U Novel axial flow pump
02/05/2013US8366387 Enhanced axial air mover system with floor edge
01/2013
01/24/2013US20130022508 System for enhanced recovery of tangential energy from an axial pump in a loop reactor
01/24/2013US20130022479 Axial Fan With Additional Flow Channel
01/23/2013CN102287377B 螺旋工作泵 Spiral working pump
01/17/2013US20130017075 Electrical Submersible Pump
01/16/2013CN202673694U Rotor pump
01/10/2013US20130011254 Columnar air moving devices, systems and methods
01/09/2013CN202659514U Permanent-magnet screw pump
12/2012
12/11/2012CA2716819C Progressing cavity pump rubber reinforcement device for rotor alignment
12/06/2012US20120308380 Vacuum pump
12/05/2012EP2530327A2 Compact low noise efficient blower for CPAP devices
12/05/2012CN202579265U Pump-free excrement pumping machine
11/2012
11/22/2012WO2012158277A1 Method and apparatus for moving cryogen
11/21/2012EP2525099A1 Rotary pump with two bearing elements and a flow channel
11/14/2012CN102777388A All-metal screw oil well pump for deep well
10/2012
10/31/2012DE112011100328T5 Fluidpumpe mit einem radial komprimierbaren Rotor Fluid pump having a radially compressible rotor
10/24/2012CN102748300A Spiral axial-flow pump
10/18/2012WO2012141603A1 Assembly of air and pneumatic devices
10/18/2012CA2832954A1 Assembly of air and pneumatic devices
10/17/2012CN102734175A Axial flow device
10/11/2012US20120257956 Turbine Fuel Pump for Vehicle
10/10/2012CN202483886U Single-screw pump having horizontal delivery function and applied for reaction vessel
10/04/2012WO2012101655A3 A self actuating archimedes screw to raise seawater by harnessing wave energy
10/03/2012CN202468334U Extrusion type axial flow high-pressure water gun
10/02/2012CA2480467C Implantable heart assist system
09/2012
09/27/2012US20120243979 Mixing fan
09/26/2012CN101709707B Reciprocating oil-pumping screw pump of ball inverse helical driving type
09/19/2012CN101518931B Method for enhancing strength of external ring of fan in the fan driving system
09/12/2012CN202431593U Axial-flow pump impeller adopting spiral blades
09/12/2012CN202431530U Screw axial flow pump with novel guide blade
09/12/2012CN102665787A Pump device having a detection device
09/05/2012CN101798051B Sludge receiving/storing/conveying system
08/2012
08/30/2012DE112010002711T5 Komprimierbares und expandierbares Schaufelblatt für eine Fluidpumpe Compressible and expandable blade for a fluid pump
08/29/2012CN202402290U Screw bushing pair for submersible pump
08/28/2012US8251676 Axial-flow fan for a vehicle radiator
08/22/2012CN202391745U Novel water inlet cone
08/15/2012CN102639874A Compressible rotor for a fluid pump
08/01/2012CN102619761A Axial-flow pump for particle image velocimetry and particle image velocimetry method
07/2012
07/25/2012CN202348686U Single-screw pump for reaction kettle with stirring and guiding functions
07/25/2012CN202348685U Axial flow water pump
07/05/2012US20120171042 Propeller fan, molding die, and fluid feeder
07/05/2012US20120171014 Barrel-type multistage pump
06/2012
06/27/2012CN101871456B Separation pump
06/13/2012CN102490307A Plastic fans having improved fan ring weld line strength
06/06/2012CN202266475U 一种泵用导流切割筒 A pump cylinder with a cutting guide
06/06/2012CN202266443U 一种螺旋切割泵 Cut in a spiral pump
05/2012
05/31/2012WO2011128502A3 Liquid ring pump and method for operating a liquid ring pump
05/31/2012US20120134793 Blood pump with separate mixed-flow and axial-flow impeller stages, components therefor and related methods
05/30/2012CN202250889U Vertical axial flow pump used for pumping sea water
05/30/2012CN202250888U Spiral axial-flow pump
05/30/2012CN102477993A 一种轻型大扬程农用水泵 A lightweight big lift agricultural pumps
05/24/2012WO2012010852A3 Fluid dose dispensing apparatus
05/24/2012US20120128484 Turbomolecular Pump and Connector Device Therefor
05/23/2012CN101865129B Processing method of screw pump stator with equal wall thickness and special push-pull device
05/17/2012US20120121390 Gas turbine engine compressor arrangement
05/16/2012DE102010051273A1 Drive mechanism for use as e.g. drive in boat-and ship construction for accelerating fluid or gaseous medium, has drive shaft comprising parabolic screw that rotates shaft and is closed at inner surface of housing
05/16/2012CN101548081B Plastic fans having improved fan ring weld line strength
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