| Patents for F04C 13 - Adaptations of machines or pumps for special use, e.g. for extremely high pressures (1,349) |
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| 04/18/2013 | WO2011120512A3 Method for removing an eccentric worm gear drive of a crude oil delivery pump and crude oil delivery pump |
| 04/17/2013 | CN202883370U Flanged high-pressure pump |
| 04/17/2013 | CN202883369U Flanged stainless-steel three-jaw high-pressure pump |
| 04/03/2013 | EP2574790A1 A priming liquid supply system for a sub-sea pump or compressor |
| 03/27/2013 | CN101443554B 旋转活塞机械 Rotary piston machine |
| 03/26/2013 | US8403656 Vane pump consisting of a two-part stator |
| 03/21/2013 | WO2011124212A3 Contact element for rotary piston pumps |
| 03/13/2013 | EP2567142A1 Method and system for continuously pumping a solid material and method and system for hydrogen formation |
| 03/07/2013 | WO2013030025A2 Rotary displacement pump for pumping flowable viscous materials |
| 03/06/2013 | EP2565454A1 Rotary displacement pump for pumping flowable materials of high viscosity |
| 02/28/2013 | US20130047595 Air compression method and apparatus |
| 02/27/2013 | EP2562421A2 Swing vane-type pump actuator which prevents fretting corrosion |
| 02/13/2013 | EP2556255A2 Contact element for rotary piston pump |
| 01/02/2013 | CN102859197A Swing vane-type pump actuator which prevents fretting corrosion |
| 01/02/2013 | CN102859119A Pump or turbine for incompressible fluids |
| 12/26/2012 | CN101657643B Gear wheel pump |
| 12/12/2012 | CN202597096U Micro-friction through-flow floating side plate type duplex high pressure gear pump |
| 12/12/2012 | CN202597092U Axial compensating type high pressure gear pump |
| 11/28/2012 | CN102803731A Method and apparatus for managing fluid flow within a screw pump system |
| 11/21/2012 | EP2525098A1 Vacuum control in a vacuum filler without feed of outside air |
| 10/09/2012 | CA2524413C Gear pump |
| 10/03/2012 | CN202468302U Extra-high pressure gear oil pump |
| 10/03/2012 | CN101310111B Hot melt adhesive metering pump assembly with integral reservoir tank |
| 09/19/2012 | EP2500568A2 Downhole backspin retarder for progresssive cavity pump |
| 09/19/2012 | CN202441590U High-pressure gear pump |
| 09/12/2012 | CN202431516U High-pressure gear pump |
| 09/11/2012 | CA2711206C Stuffing box for progressing cavity pump drive |
| 08/30/2012 | US20120219443 Method And Device For Pumping With Reduced Power Use |
| 08/01/2012 | CN102625880A Rotary piston pump |
| 07/26/2012 | WO2012097773A2 Modular anti-torque mechanism |
| 07/19/2012 | US20120183426 Variable-displacement lubricant pump |
| 07/18/2012 | EP2475889A2 Rotary piston pump |
| 07/17/2012 | US8221103 Fluid motor having improved braking effect |
| 07/11/2012 | CN102562577A Extra-high pressure gear oil pump |
| 06/28/2012 | US20120164016 Rinsing Arrangement for Tribological Contact Area and Rotary Vane Pump with such an Arrangement |
| 06/26/2012 | CA2721550C Integrated pumping system for use in pumping a variety of fluids |
| 06/20/2012 | EP2466139A2 Fluid sealing in a pump for underwater applications and operating method thereof |
| 06/05/2012 | CA2689805C Progressing cavity pump system for transporting high-solids, high-viscosity, dewatered materials |
| 05/16/2012 | CN102459902A 用于润滑螺杆泵系统的方法和设备 Methods and apparatus for lubricating the screw pump system |
| 05/16/2012 | CN102459809A 改进的井下传送系统 Improved underground transport system |
| 05/09/2012 | CN202215471U High-pressure gear pump |
| 04/25/2012 | CN102425544A 一种高压力齿轮泵 A high-pressure gear pump |
| 04/17/2012 | CA2580385C Vane pump comprising a two-part stator |
| 03/28/2012 | EP1714036B1 Sealing surfaces between a wavy rotor collar and a displaceable slide of a plump |
| 03/22/2012 | WO2012034592A1 Rotary displacement pump for pumping solids emulsions, especially liquid explosives |
| 03/22/2012 | CA2813228A1 Rotary displacement pump for pumping solids emulsions, especially liquid explosives |
| 03/21/2012 | CA2751890A1 System for thermally controlling a solid feed pump |
| 03/15/2012 | WO2011029847A3 Rotary piston pump |
| 03/15/2012 | DE10257859C5 Schraubenspindelpumpe Screw Pump |
| 02/21/2012 | CA2494444C Progressive cavity pump |
| 02/15/2012 | CN102356238A Rotor drive mechanism and pump device provided with same |
| 02/09/2012 | WO2011159833A4 Pumping systems |
| 02/08/2012 | EP2416014A1 Rotor drive mechanism and pump device provided with the same |
| 02/08/2012 | EP2414225A2 Power unit |
| 01/18/2012 | EP2407667A1 Uniaxial eccentric screw pump |
| 01/11/2012 | CN102317571A Pump |
| 01/10/2012 | CA2455742C Rotary drivehead for downhole apparatus |
| 01/05/2012 | WO2011129642A3 Swing vane-type pump actuator which prevents fretting corrosion |
| 12/22/2011 | WO2011159833A1 Pumping systems |
| 12/21/2011 | EP2396507A1 Pump |
| 12/15/2011 | WO2011078696A3 Pump or turbine for incompressible fluids |
| 12/14/2011 | CN102282373A 单轴偏心螺杆泵 Uniaxial eccentric screw pump |
| 11/02/2011 | CN101641040B Flexible impeller pumps for mixing individual components |
| 10/27/2011 | WO2011133321A2 Solid feed guide apparatus for a solid feed pump |
| 10/20/2011 | WO2011129642A2 Swing vane-type pump actuator which prevents fretting corrosion |
| 08/17/2011 | CN1654823B Screw pump |
| 06/14/2011 | CA2359546C Sanitary design gear pump |
| 05/19/2011 | WO2011058296A2 Stator inserts, methods of fabricating the same, and downhole motors incorporating the same |
| 05/19/2011 | WO2011058295A2 Stators for downhole motors, methods for fabricating the same, and downhole motors incorporating the same |
| 05/19/2011 | WO2011058294A2 Stators for downhole motors, methods for fabricating the same, and downhole motors incorporating the same |
| 05/19/2011 | CA2780865A1 Stators for downhole motors, methods for fabricating the same, and downhole motors incorporating the same |
| 05/19/2011 | CA2780863A1 Stators for downhole motors, methods for fabricating the same, and downhole motors incorporating the same |
| 05/19/2011 | CA2780260A1 Stator inserts, methods of fabricating the same, and downhole motors incorporating the same |
| 05/17/2011 | US7942567 Extruder system with integrated gear pump |
| 04/27/2011 | CN102037244A Underwater delivery unit |
| 04/20/2011 | EP2312161A2 Metering device |
| 04/20/2011 | CN102027238A Drill motor assembly |
| 04/13/2011 | EP2309131A1 Device for metering a viscous medium and method for producing same |
| 04/13/2011 | CN101061317B Rotary displacement pump |
| 04/12/2011 | US7922469 Pump |
| 03/31/2011 | WO2010126651A3 Method and apparatus for lubricating a screw pump system |
| 03/24/2011 | WO2010126650A3 Method and apparatus for managing fluid flow within a screw pump system |
| 02/16/2011 | EP2283990A1 Gear pump for viscous media and method |
| 02/16/2011 | EP2283235A2 Drill motor assembly |
| 02/09/2011 | EP2282059A1 Gear pump with magnetic coupling assembly |
| 02/02/2011 | EP2279324A1 Stator for use in helicoidal motor |
| 02/02/2011 | CN101965457A Cartridge-type single-screw pump and dye-meter equipped with such pump |
| 01/26/2011 | EP2278165A2 Rotary piston pump with angular gear |
| 01/26/2011 | CN101956702A Positive displacement pump |
| 01/25/2011 | CA2623365C Integrated pumping system for use in pumping a variety of fluids |
| 01/12/2011 | EP2273122A2 Split discharge vane pump and fluid metering system therefor |
| 12/30/2010 | DE102009030655A1 Vorrichtung und Verfahren zum Transport von Fluidmedium Device and method for transport of fluid medium |
| 12/29/2010 | EP2265824A2 Underwater delivery unit |
| 12/23/2010 | WO2010147680A1 Improved down hole delivery system |
| 12/23/2010 | CA2764929A1 Improved down hole delivery system |
| 12/22/2010 | EP2264317A1 Two-phase heat-exchange method and device with bearing-mounted gear pump |
| 12/08/2010 | CN1878652B Gear pump |
| 12/08/2010 | CN101052806B Vane pump or roller vane pump |
| 10/07/2010 | WO2010113410A1 Rotor drive mechanism and pump device provided with the same |
| 10/05/2010 | CA2486277C Down-hole vane motor |