| Patents for F04D 1 - Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps (3,447) |
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| 07/23/2014 | CN203730334U 一种抗沙型离心泵 An anti-sand-type centrifugal pump |
| 07/23/2014 | CN203730333U 一种轴向力自平衡多级离心泵 An axially self-balance multistage centrifugal force |
| 07/23/2014 | CN203730332U 一种立式多级离心泵 One kind of vertical multistage centrifugal pump |
| 07/23/2014 | CN203730331U 一种非平衡性离心泵 A non-balanced centrifugal |
| 07/23/2014 | CN203730112U 一种新型的水泵 A novel pump |
| 07/17/2014 | US20140199165 Liquid pump |
| 07/16/2014 | CN203717366U 延迟焦化加热炉用进料泵 Delayed coking furnace with feed pumps |
| 07/16/2014 | CN203717365U 矿用小型电动螺杆式提浆机 Mine small electric screw mention pulp |
| 07/16/2014 | CN203717362U 高速加氢进料泵 High-speed hydrogenation feed pump |
| 07/16/2014 | CN203717361U 双吸双级抗汽蚀离心油泵 Two-stage double-suction centrifugal pump cavitation |
| 07/16/2014 | CN203717360U 双级无堵塞污水泵 Two-stage non-clog sewage pumps |
| 07/16/2014 | CN103925247A 叶轮泵 Impeller Pumps |
| 07/15/2014 | US8777554 Intermediate fan stage |
| 07/11/2014 | CA2838904A1 Liquid pump |
| 07/10/2014 | WO2014106635A1 Centrifugal pump with coalescing effect, design method and use thereof |
| 07/09/2014 | CN203702620U 一种高效节能的离心泵灌水装置 An energy efficient centrifugal pump irrigation system |
| 07/03/2014 | WO2014105099A1 Centrifugal expanders and compressors each with both flow from periphery to center and flow from center to periphery in both external heat and internal combustion |
| 07/02/2014 | CN203685593U 高压封水泵 High pressure water pump seal |
| 07/02/2014 | CN203685592U 二级泵 Two pumps |
| 07/02/2014 | CN203685591U 一种自动浮动润滑型高扬程多级泵 An automatic float lubricated high-lift multi-stage pump |
| 06/26/2014 | US20140178194 Blower fan |
| 06/26/2014 | US20140178190 Multiphase pumping system |
| 06/25/2014 | CN203670235U 一种双叶轮潜水泵 A dual impeller submersible pumps |
| 06/25/2014 | CN203670218U 一种离心泵 One kind of centrifugal pumps |
| 06/25/2014 | CN203670217U 一种发动机水泵总成 An engine water pump assembly |
| 06/24/2014 | US8757987 Vacuum pump for differentially pumping multiple chambers |
| 06/19/2014 | WO2014071278A3 Flow conditioning feature for suction diffuser |
| 06/19/2014 | US20140169940 Self-priming centrifugal pump |
| 06/18/2014 | EP2742243A1 Pump shaft seal using sealing rings and a bellows for retention of bearing lubricant |
| 06/18/2014 | EP2742242A1 Pump with double- suction impeller generating axial thrust |
| 06/18/2014 | CN103867452A Spiral centrifugal pump |
| 06/12/2014 | WO2014086730A1 Back-to-back centrifugal pump |
| 06/11/2014 | CN203641020U 一种叶轮水泵 One kind of water pump impeller |
| 06/11/2014 | CN203641019U 一种密封水泵 A sealed pumps |
| 06/11/2014 | CN203641018U 一种车用水泵 A vehicular pump |
| 06/11/2014 | CN203641017U 一种新型的水泵 A novel pump |
| 06/11/2014 | CN203641016U 单级悬臂式双壳体浆料离心泵 Single-stage centrifugal slurry cantilever double case |
| 06/11/2014 | CN103850943A Improved centrifugal pump with cutting device |
| 06/05/2014 | US20140154071 Air diffuser system for industrial pumps |
| 06/04/2014 | CN103842660A Pump shaft seal using sealing rings and a bellows for retention of bearing lubricant |
| 06/03/2014 | CA2549665C Coolant pump with axial output |
| 05/28/2014 | EP2734735A2 Multistage centrifugal turbomachine |
| 05/28/2014 | CN203614431U 离心泵装置 Centrifugal Pump |
| 05/28/2014 | CN203614427U 屏蔽泵及其泵体入口结构 Shielding pumps and pump inlet structure |
| 05/22/2014 | WO2014078236A1 Pump system for high pressure applications |
| 05/22/2014 | WO2014077275A1 Device for measuring dynamic characteristics of centrifugal-type rotary machine, and centrifugal-type rotary machine |
| 05/21/2014 | CN203604211U 自吸半离心式抽水泵 Self-priming centrifugal pumps half |
| 05/21/2014 | CN203604210U 新型离心油泵 The new centrifugal pump |
| 05/21/2014 | CN103807187A 一种135mw循环流化床离心式高压流化风机 One kind of 135mw circulating fluidized bed fluidized-pressure centrifugal blower |
| 05/21/2014 | CN103807179A 一种新型的自平衡型立式多级泵 A new self-balancing vertical multistage pumps |
| 05/14/2014 | CN103790832A 一种自动浮动润滑型高扬程多级泵 An automatic float-lubricated high-lift multi-stage pump |
| 05/13/2014 | US8721262 Vertical centrifugal pump |
| 05/08/2014 | WO2014067704A1 Turbomachine in a motor vehicle |
| 05/07/2014 | CN203584823U 一种多功能水泵 A multifunctional pump |
| 04/30/2014 | CN203570600U Two-stage centrifugal compressor |
| 04/30/2014 | CN203570599U Water pump for pickup truck |
| 04/30/2014 | CN103758762A Feeding pump for delay coking heating furnace |
| 04/30/2014 | CN103758761A Double-stage non-clogging sewage pump |
| 04/23/2014 | CN203560102U Solar water heater circulating pump with exhausting function |
| 04/23/2014 | CN103742418A Pure working medium impeller mechanism |
| 04/23/2014 | CN103742417A Efficient large overflowing vortex pump hydraulic design method |
| 04/16/2014 | EP2719900A1 Pump |
| 04/16/2014 | CN203548305U Single-stage single-suction cantilever type centrifugal pump hanger bracket |
| 04/16/2014 | CN203548303U Birotor magnetic drive multistage pump |
| 04/16/2014 | CN203548236U Novel deep well pump |
| 04/09/2014 | EP2716914A1 Centrifugal electric pump |
| 04/09/2014 | CN203532271U Horizontal type multistage self-sucking pump with differential valves |
| 04/09/2014 | CN203532269U Parallel type self-balance multiple-stage centrifugal pump |
| 04/09/2014 | CN203532268U Speed changing multiple-stage centrifugal pump structure for photovoltaic power system |
| 04/09/2014 | CN103717903A Multistage centrifugal turbomachine |
| 04/09/2014 | CN103711708A Centrifugal electric pump |
| 04/09/2014 | CN102536835B Helico-centrifugal pump for solid-liquid two-phase fluid |
| 04/09/2014 | CN102345607B Volute type water pump and base thereof |
| 04/09/2014 | CN101832272B Multi-stage centrifugal pump assembly |
| 04/03/2014 | WO2014051070A1 Liquid transport device |
| 04/03/2014 | WO2014008535A9 A solid body vortex pump |
| 03/27/2014 | US20140086736 Rotodynamic pump for variable output flow |
| 03/27/2014 | DE102012018720A1 Mehrstufige hydraulische Maschine Multi-stage hydraulic machine |
| 03/26/2014 | CN203500031U Amphibious multistage pump |
| 03/26/2014 | CN203500030U Double suction middle-opening centrifugal pump with impeller and shaft matched by adopting conical shaft hole |
| 03/26/2014 | CN203500029U Flow passage for water absorption chamber of cooling water pump of internal combustion engine |
| 03/26/2014 | CN103671133A Centrifugal pump device |
| 03/20/2014 | WO2014009934A3 Geometric description of a rotor blade |
| 03/19/2014 | CN203488382U Vertical dividing centrifugal compressor with horizontal air inlet cylinder and horizontal air outlet cylinder |
| 03/12/2014 | CN203476718U Submersible pump for high-pressure well |
| 03/12/2014 | CN203476717U Multistage centrifugal pump |
| 03/12/2014 | CN203476716U Impeller centrifugal pump |
| 03/12/2014 | CN203476715U Sterile centrifugal pump |
| 03/12/2014 | CN102536836B Gas-liquid sealed pump |
| 03/06/2014 | US20140064947 Rotor machine intended to function as a pump or an agitator and an impeller for such a rotor machine |
| 03/05/2014 | CN103615405A Magnetic-force-driven multi-stage pump with double rotors |
| 03/04/2014 | US8662867 Bore-hole pump |
| 02/27/2014 | WO2013180604A3 Centrifugal multiple-impeller electric pump |
| 02/26/2014 | CN101324238B Blower with bearing tube |
| 02/25/2014 | US8657565 Pump with integrated deflation port |
| 02/19/2014 | CN203441763U Self-suction device of multistage centrifugal pump |
| 02/19/2014 | CN203441756U Multilevel horizontal split pump |
| 02/19/2014 | CN203441755U Axial suction type sea water desalination high pressure pump |
| 02/19/2014 | CN203441754U Multi-stage horizontal split centrifugal pump |
| 02/13/2014 | WO2013188741A3 Preventing submersible pump air lock |