| 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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| 04/17/2013 | CN202883390U Anti-explosion multistage submersible sewage electric pump |
| 04/17/2013 | CN103052805A Screw type pump or motor |
| 04/11/2013 | WO2013050031A1 Centrifugal pump for fluids containing solid materials, and gap seal |
| 04/11/2013 | DE10315672B4 Explosionsgeschützte Einrichtung in Form einer Kraft- und/oder Arbeitsmaschine Explosion-proof device in the form of a force and / or machine |
| 04/03/2013 | CN202851385U Under-liquid anticorrosion sewage pump |
| 04/03/2013 | CN103016390A Dynamically sealed pump |
| 04/03/2013 | CN103016354A Wear-resistant centrifugal pump |
| 04/02/2013 | US8409495 Rotor with inlet perimeters |
| 03/28/2013 | WO2012145381A4 Mold pump assembly |
| 03/27/2013 | CN202833190U Pickling centrifugal pump |
| 03/27/2013 | CN202833189U Dual-purpose residue pumping pump |
| 03/27/2013 | CN202833188U Super anti-friction and anticorrosion combination pump |
| 03/27/2013 | CN102996493A Anti-cavitation grinding device of submerged grinding pump |
| 03/27/2013 | CN102996490A Structure of slurry pump equipped with inside lining protective plate |
| 03/27/2013 | CN102996458A Feeding and catching device inside methane tank |
| 03/27/2013 | CN101779043B Pump rotor and pump comprising a pump rotor of the type |
| 03/27/2013 | CN101303028B Pump case component with bush |
| 03/21/2013 | WO2013037945A1 Erosion resistant impeller vane made of metallic laminate |
| 03/20/2013 | EP2570674A1 Erosion resistant impeller vane made of metallic laminate |
| 03/20/2013 | EP2569482A1 Arrangement for degassing control |
| 03/20/2013 | CN202811378U High-temperature hot oil conveying pump |
| 03/20/2013 | CN202811377U Sewage pump |
| 03/20/2013 | CN102978528A 矿渣泵 Slag pump |
| 03/19/2013 | US8398382 Turbo type blood pump |
| 03/14/2013 | DE102011112580A1 Self-priming pump for pumping polluted media, particularly polluted water interspersed with foreign materials, such as leaves or twigs, has impeller and cutting unit, where pump chamber is provided in flow direction in front of cutting unit |
| 03/13/2013 | EP2567097A1 Centrifugal pump |
| 03/13/2013 | CN202789562U Vertical cantilever submerged pump |
| 03/13/2013 | CN102966554A Lead pump |
| 03/06/2013 | CN102954002A Improved structure of self-suction type sewage discharging pump |
| 02/27/2013 | CN202756272U Slurry pump |
| 02/27/2013 | CN202756271U Slurry pump with gapless fit between rear pump body and protecting jacket |
| 02/27/2013 | CN101260892B Sugar industry emulsifying mortar dedicated pump |
| 02/21/2013 | WO2013025291A1 Method and apparatus for adjusting impeller-sealing ring clearance in a pump |
| 02/21/2013 | CA2840204A1 Method and apparatus for adjusting impeller-sealing ring clearance in a pump |
| 02/20/2013 | CN202746279U Block-free corrosion resistant submerged pump |
| 02/20/2013 | CN202746211U Abrasion-resistant high-temperature double-suction oil slurry pump |
| 02/13/2013 | CN202732421U Submerged pump suction height regulating mechanism |
| 02/13/2013 | CN202732361U Novel centrifugal crystal slurry pump |
| 02/13/2013 | CN202732360U Novel slurry pump |
| 02/13/2013 | CN202732359U Sludge pump |
| 02/13/2013 | CN202732358U Anti-leakage centrifugal sand pump |
| 02/13/2013 | CN102927017A Submerged pump with magnetic bearing |
| 02/13/2013 | CN102072163B Acid pump |
| 02/07/2013 | DE102011052453A1 Zentrifugalpumpe Centrifugal pump |
| 02/06/2013 | CN202718874U Slurry pump with high wear-resisting rubber sheath |
| 02/06/2013 | CN102918276A 离心泵 Centrifugal |
| 02/06/2013 | CN102913456A Easy-to-detach horizontal self-priming pulverizing pump with reamer |
| 02/06/2013 | CN102913453A Sand pump |
| 02/05/2013 | US8366384 Pump assembly and method |
| 01/31/2013 | WO2012145381A3 Mold pump assembly |
| 01/30/2013 | CN101251120B Roter and stator for sugar industry emulsifying lime slurry pump |
| 01/25/2013 | DE202013100179U1 Befüllvorrichtung zur Saugförderung von nichthomogenen Flüssigkeiten Filling the vacuum conveying of non-homogeneous liquids |
| 01/24/2013 | WO2013010224A1 Improvements to pumps and components therefor |
| 01/24/2013 | US20130022450 Pump impeller and submersible pump having such pump impeller |
| 01/24/2013 | CA2839472A1 Improvements to pumps and components therefor |
| 01/16/2013 | CN202673696U Middle-high concentration paper pulp centrifugal pump |
| 01/16/2013 | CN202673695U Novel chemical centrifugal pump |
| 01/16/2013 | CN102884325A Pump intake device |
| 01/16/2013 | CN101440816B Pressure relief arrangement for a pump |
| 01/10/2013 | WO2012154118A9 Rotor machine intended to function as a pump or an agitator and an impeller for such a rotor machine |
| 01/09/2013 | EP2542784A1 Pump intake device |
| 01/09/2013 | CN102869888A Solid feed guide apparatus for a solid feed pump |
| 01/09/2013 | CN102869833A Arrangement for degassing control |
| 01/08/2013 | US8348633 Speed-dependent stability valve |
| 01/08/2013 | CA2676800C Turbo type blood pump |
| 01/03/2013 | WO2013000032A1 Improved ceramic impeller with metallic hub |
| 01/02/2013 | CN202646022U Pump used for transporting high temperature medium |
| 01/02/2013 | CN202646021U Improved slurry pump |
| 01/02/2013 | CN202646020U Pump drainage machine with cutting steels |
| 12/27/2012 | CA2772831A1 Cementless pump for pumping molten metal |
| 12/26/2012 | EP2538086A1 Centrifugal pump device |
| 12/26/2012 | CN202628603U Vane pump provided with open impeller |
| 12/26/2012 | CN202628535U Gas-liquid-solid three-phase multiphase pump |
| 12/26/2012 | CN102094831B Machine for sucking and discharging high-temperature and high-corrosion materials |
| 12/26/2012 | CN101918717B Material delivery apparatus |
| 12/19/2012 | EP2535590A2 Circulation pump with integrated cutting assembly |
| 12/19/2012 | EP2535589A2 Cutting assembly pump |
| 12/19/2012 | CN202612200U Slurry pump composite impeller |
| 12/19/2012 | CN102828961A Vertical cantilever submerged pump |
| 12/13/2012 | US20120312392 Pump system with vacuum source |
| 12/12/2012 | EP2532896A2 Pumping device |
| 12/12/2012 | CN102207092B High-concentration centrifugal pulp pump capable of spraying water on outer corner |
| 12/12/2012 | CN102207091B High-concentration centrifugal pulp pump capable of spraying water on inner and outer corners |
| 12/05/2012 | CN202579202U Chemical material delivery pump |
| 12/05/2012 | CN101586579B Sludge pump impeller with splitter vanes |
| 11/28/2012 | CN202560571U Low-melting-point metal liquid pump |
| 11/28/2012 | CN202560570U Chemical centrifugal pump special for automobile oil production workshops |
| 11/27/2012 | CA2533615C Pump housing assembly with liner |
| 11/22/2012 | WO2012158277A1 Method and apparatus for moving cryogen |
| 11/22/2012 | WO2012156726A1 Control device and pump apparatus |
| 11/21/2012 | CN202545362U Corrosion-resistant wear-resistant chemical pump |
| 11/21/2012 | CN202545267U Open type spiral pulp pump |
| 11/21/2012 | CN202545266U Cantilever type submerged slurry pump |
| 11/21/2012 | CN202545265U Durable biogas residue and biogas slurry pumping and draining pump |
| 11/15/2012 | WO2012154118A1 Rotor machine intended to function as a pump or an agitator and an impeller for such a rotor machine |
| 11/15/2012 | WO2012153169A1 Apparatus and method for the dredging of sediments from the seabed |
| 11/15/2012 | WO2012076839A9 Omni directional wind speed accelerator |
| 11/15/2012 | CA2833860A1 Rotor machine intended to operate as a pump or agitator, and an impeller for such a rotor machine |
| 11/15/2012 | CA2825501A1 Dredging apparatus and method for removing sediments from a water bed |
| 11/14/2012 | CN202531470U Open-type impeller non-blocking crushing pump |