| Patents for F04D 7 - Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts (4,105) |
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| 11/05/2009 | DE102008021767A1 Kreiselpumpe mit Zerkleinerungseinrichtung Centrifugal pump with crushing device |
| 11/04/2009 | EP2113670A2 Centrifugal pump with crushing device |
| 10/29/2009 | US20090269201 Air diffuser system for industrial pumps |
| 10/28/2009 | EP2111509A2 A system and method for monitoring and control of wl-nd farms |
| 10/28/2009 | CN101566163A Rivet type lining fluorine axial-flow pump |
| 10/28/2009 | CN101566162A Case clip type waste acid concentrating pump |
| 10/21/2009 | EP2110558A1 Multi-stage high-pressure pump |
| 10/21/2009 | CN201330758Y Vertical-type halogen transfer pump for using fresh water to dip and clean crystal in pump |
| 10/21/2009 | CN201330748Y Pump housing of ceramic stock pump with metal seal ports |
| 10/21/2009 | CN101560985A Waste acid concentration pump with labyrinth-type impeller |
| 10/15/2009 | WO2009124510A1 Air-cooled molten aluminum permanent magnet pump |
| 10/14/2009 | CN201326574Y Split drainage seat used for water pump |
| 10/07/2009 | CN201322003Y Flame-proof type submerged sand-removing pump for mining |
| 10/07/2009 | CN201321989Y High pressure resistant, wearable and corrosion resistant high temperature pump |
| 09/30/2009 | CN201318293Y Sewage pump |
| 09/24/2009 | WO2009076596A3 System, method and apparatus for two-phase homogenizing stage for centrifugal pump assembly |
| 09/16/2009 | CN101532498A Mechanical seal of multilayer sludge pump |
| 09/09/2009 | CN101526089A Inlet structure of chemical process pump |
| 09/09/2009 | CN100538082C Multifunctional diving slurry pump |
| 09/08/2009 | US7585147 Pressurizing centrifugal pump |
| 09/02/2009 | EP1207934A4 Guidable intravascular blood pump and related methods |
| 09/02/2009 | CN201301814Y Improved structure of wear-resistant sheath for slurry pump |
| 08/27/2009 | US20090213686 Method and Apparatus for Feeding Gaseous or Liquid Fluid into a Medium |
| 08/26/2009 | EP1843831B1 A method of and an apparatus for feeding gaseous or liquid fluid into a medium |
| 08/26/2009 | CN201297287Y Centrifugal pump applicable to high-temperature and high-solidifying point media |
| 08/26/2009 | CN201297271Y Energy-saving dredge pump welding shaft |
| 08/26/2009 | CN100532857C Pump with cutting impeller and pre-chopper |
| 08/19/2009 | CN201292984Y Impeller special for conveying liquid-solid two-phase fluid |
| 08/19/2009 | CN201292952Y Fish and prawn sucking pump |
| 08/19/2009 | CN101512022A Method for preparing steel with low-temperature flexibility |
| 08/19/2009 | CN101509491A Special long shaft underwater halogen transmitting pump |
| 08/12/2009 | CN201288694Y Highly efficient slurry pump |
| 08/12/2009 | CN201288690Y Vertical exhaust pump with dual sealed chambers |
| 08/06/2009 | WO2009076596A8 System, method and apparatus for two-phase homogenizing stage for centrifugal pump assembly |
| 08/05/2009 | CN201284746Y Movable bearing case clearing machine |
| 08/05/2009 | CN100523512C Energy-saving high-efficiency centrifugal pump with strong corrosion resistant |
| 08/04/2009 | CA2419458C Electric submersible pump with specialized geometry for pumping viscous crude oil |
| 07/29/2009 | CN100519402C Secondary containment vessel system and method |
| 07/22/2009 | EP2080974A1 Vapor contact-type heating device |
| 07/22/2009 | EP1689529A4 Two stage sewage grinder pump |
| 07/22/2009 | CN201277179Y Submersible two-phase flow pump |
| 07/21/2009 | US7563406 Device for supplying casting installations with molten metal |
| 07/15/2009 | CN201273286Y Reamer smashing delivery pump |
| 07/15/2009 | CN100513030C Plastic-lining centrifugal pump special-shaped flow passage processing device |
| 07/09/2009 | WO2009082775A1 Device for pumping gaseous suspensions, particularly fiber suspensions |
| 07/08/2009 | CN201269200Y Fire-resistant anti-corrosion centrifugal pump |
| 07/08/2009 | CN201269199Y Low-temperature liquid pump |
| 07/02/2009 | WO2009081465A1 Pressurizing centrifugal pump |
| 07/01/2009 | CN201265533Y Semi-opened impeller pump with sealing cover plate structure |
| 06/25/2009 | US20090162225 Pump for liquid cooling system |
| 06/24/2009 | CN101463823A Production method for clamping plate reinforced waste acid concentration axial flow pump |
| 06/18/2009 | WO2009076596A2 System, method and apparatus for two-phase homogenizing stage for centrifugal pump assembly |
| 06/18/2009 | CA2708505A1 System, method and apparatus for two-phase homogenizing stage for centrifugal pump assembly |
| 06/17/2009 | CN101457756A Pump of fuel memory device and portable device mounted with the fuel cell memory device |
| 06/10/2009 | CN201255118Y Wear- and corrosion-resistant pump |
| 06/10/2009 | CN101451532A Novel liquid metal transfer pump |
| 06/10/2009 | CN101451531A Pump |
| 06/10/2009 | CN101451530A Pump |
| 06/04/2009 | US20090140013 Protective coatings for molten metal devices |
| 06/03/2009 | CN101446290A High-temperature submerged centrifugal pump |
| 05/27/2009 | CN201246346Y Pump inlet structure of vertical low flash cold circulation axial-flow pump |
| 05/27/2009 | CN201246341Y Abrasion-proof sand absorbing pump |
| 05/27/2009 | CN201246310Y Low-lift large specific gravity fluid delivery pump |
| 05/27/2009 | CN201246309Y Horizontal non-leakage desanding pump |
| 05/27/2009 | CN101440816A Pressure relief arrangement for a pump |
| 05/20/2009 | EP1409899B1 Bushing arrangement for seal cavity protection in rotating fluid equipment |
| 05/20/2009 | CN201241859Y Novel corrosion resistant chemical process pump |
| 05/20/2009 | CN201241841Y Horizontal non-leakage strong self-priming pump |
| 05/20/2009 | CN201241839Y Slurry pump |
| 05/20/2009 | CN201241838Y Suspending type centrifugal pump |
| 05/20/2009 | CA2630321A1 Cutter nut and cutter bar assembly |
| 05/13/2009 | CN201236846Y Hot-water circulating pump with cooling system on pump cover |
| 05/13/2009 | CN201236833Y Light slush pump with novel structure |
| 05/13/2009 | CN201236812Y Submerged non-shaft sewage pump with strong self-suction capability |
| 05/13/2009 | CN201236811Y Integral corrosion-resistant centrifugal pump |
| 05/13/2009 | CN201236810Y Novel fluoroplastic alloy magnetic pump |
| 05/13/2009 | CN201236809Y Novel fluoroplastic alloy self-suction pump |
| 05/13/2009 | CN201236808Y Hot-water circulating pump |
| 05/06/2009 | CN201232642Y Magnetic drive multi-stage submersible pump |
| 05/06/2009 | CN201232641Y Non-plugging sludge pump |
| 05/06/2009 | CN101424274A Mining flame-proof type submersible sand discharging pump |
| 05/06/2009 | CN101424270A Shaft adjustment device for sulfur pump |
| 05/06/2009 | CN101424269A Integral thermal insulation type sulfur pump |
| 05/06/2009 | CN101424268A Connection method for sulfur pump shaft |
| 04/30/2009 | WO2009053729A1 Mud pit and pump apparatus therefor |
| 04/30/2009 | WO2009052554A1 Improved portable liquid pump |
| 04/30/2009 | DE102007049460A1 Centrifugal fluid conveying machine for use as centrifugal pump, has inlet side and pressure side, where impeller is provided with running conveying channels that are passed through together with conveying medium |
| 04/30/2009 | CA2704733A1 Mud pit and pump apparatus therefor |
| 04/29/2009 | CN201228641Y Highly effective anticorrosive centrifugal pump |
| 04/29/2009 | CN201228640Y Sand Sucking pump |
| 04/29/2009 | CN101418810A Seawater desulphurization vertical diagonal flow pump |
| 04/29/2009 | CN100482948C Improved pump impeller |
| 04/23/2009 | WO2009050950A1 Underwater aeration device |
| 04/22/2009 | EP2050967A1 Submersible pump |
| 04/22/2009 | CN201225313Y Concentrated magnesium nitrate pump |
| 04/22/2009 | CN201225304Y Shield electric pump without conveying medium lubrication bearing |
| 04/21/2009 | US7520454 Cutting tool pertaining to a centrifugal pump |
| 04/16/2009 | WO2009048406A1 Pump, wobble plate pump and cutter arrangement in pumps. |
| 04/16/2009 | WO2009048022A1 Rotary wing type pump |
| 04/15/2009 | CN201221489Y Improved anti-corrosive magnetic pump axial center postposition fixed structure |