| Patents for F04D 1 - Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps (3,447) |
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| 09/14/2011 | CN201972930U 一种涡壳式多级离心泵 A scroll casing multistage centrifugal pumps |
| 09/14/2011 | CN201972929U 流量、扬程可变式自平衡轴向力多级离心泵 Flow, head variable self-balancing axial multistage centrifugal force |
| 09/14/2011 | CN201972928U 一种新型冷却循环水用的双吸泵 A new double suction pump with cooling water circulation |
| 09/14/2011 | CN102182691A Modular pump unit used in multi-stage pump |
| 09/14/2011 | CN102182690A Composite tubular pump device |
| 09/13/2011 | CA2677957C Horizontal centrifugal pumping system |
| 09/08/2011 | DE102010010593A1 Centrifugal pump i.e. cooling fluid pump, for internal combustion engine of automotive vehicle, has plate with aperture and/or gap between wheel and casing for connection of chambers, so that volumetric flows are conveyed to outlets |
| 09/07/2011 | CN201963556U ZA chemical pump |
| 09/07/2011 | CN201963555U Vertical XBD fire pump |
| 09/07/2011 | CN201963554U Horizontal XBD fire pump |
| 09/07/2011 | CN101749276B Split type deflector |
| 08/31/2011 | CN201953669U 一种新型双级单吸式高扬程离心泵 A new dual-stage single-suction centrifugal pump high-lift |
| 08/31/2011 | CN201953663U 一种新型离心泵 A new centrifugal pump |
| 08/31/2011 | CN201953662U 一种离心泵 One kind of centrifugal pumps |
| 08/24/2011 | EP2359007A1 Centrifugal pump with offset volute |
| 08/24/2011 | CN201943961U 立式多级恒压切线消防泵 Vertical multistage fire pump constant tangent |
| 08/24/2011 | CN201942751U 电流防腐蚀保护装置及离心泵 Current anti-corrosion protection devices and centrifugal pumps |
| 08/17/2011 | CN102155413A Modularization rapid-assembling/disassembling gear driving diving tubular pump |
| 08/17/2011 | CN102155412A Pump |
| 08/10/2011 | CN101725535B Open type transient centrifugal pump |
| 08/09/2011 | CA2489787C Restraining device for fan blade root |
| 08/03/2011 | CN201916204U 双支撑式旋壳泵 Dual-supported rotary pump casing |
| 08/03/2011 | CN102144098A Intermediate housing floor for a fluid kinetic machine |
| 07/28/2011 | WO2011089512A2 Centrifugal pump |
| 07/27/2011 | EP2348219A1 Coolant pump system |
| 07/27/2011 | CN201908846U Centrifugal bionic coupling pump |
| 07/27/2011 | CN201908845U Calcium carbonate slurry centrifugal pump |
| 07/27/2011 | CN102135100A Centrifugal pump assembly |
| 07/26/2011 | CA2429584C Horizontal centrifugal pumping system |
| 07/21/2011 | WO2011086775A1 Water discharge pump |
| 07/13/2011 | CN201896757U Submersible pump for ultra-deep wells |
| 07/13/2011 | CN201896756U Dual-suction centrifugal pump |
| 07/13/2011 | CN101589236B Multi-stage high-pressure pump |
| 06/29/2011 | CN201884286U Single-stage double-suction double-outlet deep-well pump |
| 06/29/2011 | CN201884285U Centrifugal type water pump |
| 06/29/2011 | CN101818735B High-speed multistage turbine vacuum pump and evacuation method thereof |
| 06/23/2011 | US20110150651 Centrifugal fan |
| 06/22/2011 | DE102010005642A1 Kraftstoffpumpe Fuel pump |
| 06/22/2011 | DE102007012661B4 Tauchpumpenaggregat Submersible pump assembly |
| 06/22/2011 | CN201874837U Overflowless self-propelled dredge pump |
| 06/22/2011 | CN201874836U Multistage centrifugal pump with balance drum structure |
| 06/22/2011 | CN201874835U Multistage centrifugal pump with balance disc structure |
| 06/22/2011 | CN201874834U Water pump for water cooling system of motorcycle |
| 06/22/2011 | CN201874833U Special pump for sedimentation tank |
| 06/22/2011 | CN102102672A Volute type multi-stage centrifugal pump |
| 06/15/2011 | CN102099584A Centrifugal pump impeller and centrifugal pump |
| 06/15/2011 | CN101545228B Discharging method of medium-consistency oxygen reaction tower and discharging pump device thereof |
| 06/15/2011 | CN101539148B Multi-stage shield pump with low noise |
| 06/08/2011 | CN201858161U Horizontal axial suction sectional multistage high-pressure centrifugal pump |
| 06/08/2011 | CN201858160U Horizontally axial suction sectioned multistage high-pressure centrifugal pump |
| 06/08/2011 | CN102086892A Eddy current device |
| 06/08/2011 | CN102086873A Self-balancing axial force multi-stage centrifugal pump with variable flow rate and total head |
| 06/08/2011 | CN102086872A Multi-stage centrifugal pump |
| 06/02/2011 | US20110129326 Fuel pump with dual outlet pump |
| 06/01/2011 | CN201851367U Centrifugal pump used for three-dimensional PIV (particle image velocimetry) |
| 06/01/2011 | CN201851366U Vertical centrifugal pump in rigid connection |
| 06/01/2011 | CN201851365U Novel centrifugal pump |
| 06/01/2011 | CN102080659A Sections-distributed-in-pairs twin-volute mine wearable multi-stage pump |
| 05/25/2011 | CN201843788U Self-absorption type watering cart pump |
| 05/25/2011 | CN201843787U High-lift rubber pump |
| 05/25/2011 | CN201843786U Multistage shielding chemical pump with novel structure |
| 05/25/2011 | CN102072162A Paddle-type autobalance centrifugal seal pump |
| 05/25/2011 | CN102072161A Pipeline pump formed by stamping and welding |
| 05/25/2011 | CN101709720B Novel high-efficient energy-saving pump |
| 05/25/2011 | CN101290012B Vertical type drive axle-free submerged pump |
| 05/18/2011 | EP2321534A1 Intermediate housing floor for a fluid kinetic machine |
| 05/18/2011 | CN201836057U Multistage centrifugal pump |
| 05/18/2011 | CN201836056U Multipurpose self-balanced marine multistage pump |
| 05/18/2011 | CN1936336B Drainage pump |
| 05/18/2011 | CN102062103A Horizontal multi-outlet multistage pump |
| 05/18/2011 | CN102062102A Drain pump and heat exchange device comprising same |
| 05/18/2011 | CN102062101A Drainage pump and heat exchange device same |
| 05/18/2011 | CN101644268B Centrifugal pump |
| 05/17/2011 | US7942572 Process for the continuous production of emulsions |
| 05/12/2011 | WO2011055392A1 Centrifugal pump with rotating housing |
| 05/11/2011 | CN201827093U Safety shell spraying pump for a nuclear power station |
| 05/11/2011 | CN201827092U Low pressure safety injection pump used for nuclear power station |
| 05/11/2011 | CN201827087U Novel energy-saving two-stage pump |
| 05/11/2011 | CN201827086U High-efficiency energy-saving vertical type pitot pump |
| 05/11/2011 | CN102052325A Vortex pump |
| 05/04/2011 | CN201818503U Multistage centrifugal pump equipped with hydrostatic bearing |
| 05/04/2011 | CN201818502U Multistage centrifugal pump with thrust bearing assembly |
| 05/04/2011 | CN201818501U Chemical centrifugal pump with heat exchange cavity |
| 05/04/2011 | CN102042234A Vertical multistage stainless steel stamping pump |
| 05/04/2011 | CN102042233A Water circulating pump, manufacturing method thereof, and heat pump apparatus |
| 05/04/2011 | CN102042232A Anti-cavitation double-suction middle-opened centrifugal pump |
| 05/04/2011 | CN102042231A Non-leakage idling resistant centrifugal pump |
| 04/28/2011 | WO2011047602A1 Pipeline pump shaped by stamping and welding |
| 04/28/2011 | US20110097190 Rotation Device |
| 04/27/2011 | CN102032194A Pump system having energy recovery apparatus |
| 04/27/2011 | CN102032193A Stamped and welded semi-open impeller centrifugal pump |
| 04/27/2011 | CN102031530A Current anticorrosive protecting device, method and centrifugal pump |
| 04/27/2011 | CN101581307B Hydrodynamic float vane type microminiature pump |
| 04/21/2011 | US20110091323 Compressor housing for turbocharger |
| 04/20/2011 | EP1509700B1 Multistage pump, particularly of the immersion type |
| 04/20/2011 | CN201802630U Vertical centrifugal pump with water guide hole |
| 04/20/2011 | CN201802629U Vertical type centrifugal pump |
| 04/20/2011 | CN201802628U Water circulation system for centrifugal spraying |
| 04/20/2011 | CN102022340A Important plant pump for nuclear power plant |
| 04/20/2011 | CN102022339A Component cooling water pump for nuclear power plant |