| Patents for F04C 14 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations (3,663) |
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| 08/27/2008 | EP1960672A1 Noise reduced variable displacement vane pump |
| 08/27/2008 | CN101253330A Rotary pump |
| 08/27/2008 | CN101251115A Autonomous decentralized system for n-multiple system of water feeding apparatus |
| 08/27/2008 | CN101251108A Oil pump pressure control device |
| 08/27/2008 | CN100414103C Pump unit |
| 08/21/2008 | DE102007007293A1 Adjustable positive-displacement pump for servo steering system of motor vehicle, has inserting unit inserted at inner surface of curve ring and designed such that sliding friction between rotor units and contact surface is reduced |
| 08/20/2008 | EP1959143A2 Oil pump pressure control device |
| 08/14/2008 | DE102007006716A1 Positive-displacement pump i.e. single-stroke sliding vane pump, for servo-steering device of motor vehicle, has front surface with wall surface deformed so that gap is formed or enlarged, through which fluid is flown from work cell |
| 08/14/2008 | CA2582651A1 Safe backspin device |
| 08/12/2008 | US7410346 Oil pump |
| 08/07/2008 | WO2008092594A1 Temperature control valve device |
| 08/06/2008 | CN201096088Y Portable electric oil refiller |
| 07/31/2008 | WO2008089714A1 Adjustable coolant pump |
| 07/29/2008 | CA2379792C Improved pump |
| 07/23/2008 | CN100404865C Regulated pump |
| 07/17/2008 | DE102007002031A1 Pump e.g. oil pump, for motor vehicle, has locking device for locking and/or releasing adjusting unit depending on pressure developed in pump, where locking device unlocks adjusting unit during exceeding of preset pressure threshold |
| 07/16/2008 | EP1943423A1 Pump arrangement |
| 07/15/2008 | US7399166 Variable displacement pump |
| 07/15/2008 | US7399165 Pump unit with multiple operation modes |
| 07/09/2008 | EP1942277A2 Dynamic pressure control for hydraulic pumps |
| 07/08/2008 | US7396214 Variable displacement pump and control therefor |
| 07/03/2008 | DE102006061706A1 Sliding/rotary vane pump for e.g. filling blister contained in seat, has suction hole opening and closing unit to open and close suction opening, when return valve opens pump area in peripheral direction |
| 07/03/2008 | DE102006061326A1 Adjusting device for use in e.g. lubricating oil pump in motor vehicle, has control pressure chambers separately controlled and subjected with pump- or main channel pressure and arranged at circumference of control slide valve |
| 07/02/2008 | CN100398825C Variable displacement pump |
| 06/26/2008 | WO2008075557A1 Electric operated pump unit and electric operated oil pump |
| 06/26/2008 | DE102006060433A1 Vane cell pump for producing pressure medium flow for load has control channels formed as surface groove in housing parts by shaping tools when casting or sintering pump housing parts, by material cutting tools or by shaping surface groove |
| 06/26/2008 | DE102006059965A1 Variable flow rate pump has thermostat cooperating with spring-loaded slide in recess in casing and allowing perforated sleeve to swivel with respect to rotor inside it and changing flow rate |
| 06/25/2008 | EP1934478A1 Vane cell pump |
| 06/25/2008 | EP1934477A1 Net-displacement control of fluid motors and pumps |
| 06/19/2008 | US20080145260 Vane Pump with Moveable Sleeve |
| 06/19/2008 | DE102006058112A1 Control oil pump for a lubricating oil supply in a combustion engine comprises a conveying toothed wheel either fixed axially in the pump housing or formed as a component of a sliding unit which slides in the housing |
| 06/17/2008 | CA2346488C Rotary pump |
| 06/11/2008 | EP1929155A1 Two-setting variable-eccentricity vane pump |
| 06/11/2008 | CN101196189A Bidirectional constant flux gear pump |
| 06/06/2008 | CA2760472A1 Remote control for braking system of progressive cavity pump |
| 06/05/2008 | US20080131298 Fluid Pump and Motor |
| 06/05/2008 | DE102006056844A1 Innenzahnradpumpe Internal gear pump |
| 06/04/2008 | EP1927754A1 Inner geared pump |
| 06/04/2008 | CN201068858Y Simplified type oil-submersible electric screw pump |
| 05/29/2008 | WO2008062023A1 Rotary displacement machine |
| 05/29/2008 | WO2008046005A3 Pre-compression relief porting for positive displacement pumps |
| 05/28/2008 | CN100390416C Variable volume flow rotor pump |
| 05/21/2008 | EP1922487A1 Expeller pump with variable delivery volume |
| 05/21/2008 | CN101184920A Gear machine for combining two fluid streams and associated method |
| 05/14/2008 | EP1921317A2 Oil supplying apparatus for engine |
| 05/14/2008 | EP1920158A1 Rotary pump |
| 05/14/2008 | CN101178064A Oil supplying apparatus for engine |
| 05/14/2008 | CN100387841C Roller vane pump |
| 05/08/2008 | US20080107545 Tandem Pump No-Load Operation Device |
| 05/08/2008 | DE102007051541A1 Flügelpumpe mit variabler Verstellung und deren Herstellungsverfahren Vane pump with variable displacement and its manufacturing method |
| 05/02/2008 | WO2008050212A2 Variable delivery rotary vane pump |
| 05/02/2008 | WO2007120503A3 Variable displacement gerotor pump |
| 04/23/2008 | EP1658438B1 Liquid pump |
| 04/23/2008 | CN201050477Y Hydraulic pump installed with unloading protecting valve |
| 04/17/2008 | WO2008046005A2 Pre-compression relief porting for positive displacement pumps |
| 04/17/2008 | DE102006048089A1 Controller for hydraulic pump i.e. external tooth gear-control oil pump, for lubricating oil supply of internal combustion engine, has regulator producing control pressure from delivery pressure of hydraulic pump |
| 04/17/2008 | DE102006047849A1 Rotary pump i.e. vane pump, for supplying pressurizing medium, has cam ring with groove in tangential area of pump chamber, and stays in effective connection with suction opening, where groove has smaller width than cam ring |
| 04/16/2008 | EP1911974A1 Pressure regulation for controlled outer gearwheel oil pump |
| 04/16/2008 | EP1910681A2 Vane-cell pump |
| 04/16/2008 | CN101162018A Decelerator-free oil-submersible screw pump |
| 04/10/2008 | WO2007123607A8 Variable displacement sliding vane pump |
| 04/09/2008 | CN100379991C Variable displacement pump |
| 04/08/2008 | US7354253 Oil pump |
| 04/03/2008 | WO2008037070A1 Control system and method for pump output pressure control |
| 04/03/2008 | CA2663123A1 Control system and method for pump output pressure control |
| 04/02/2008 | EP1906020A2 Fluid pump with adjustable conveyor volume |
| 04/01/2008 | US7350616 Power steering pump having electronic bypass control |
| 03/27/2008 | DE102007014771A1 Testing method for testing the functions of a vane-cell pump detects fluctuations in a pressurized medium like air while scanning the pump's driving gearwheel |
| 03/27/2008 | DE102006044810A1 Fluid pump i.e. external gear pump, has secondary pump wheel rotatably supported on adjustment piston relative to adjustment piston in axially immovable manner, where adjustment piston is pre-stressed in direction of rotation around axle |
| 03/27/2008 | DE102006043597A1 Eccentric screw pump`s operation monitoring method for delivering mortar, involves setting change of rotational speed in relationship with measured pressure, and providing control circuit for adjusting rotational speed |
| 03/26/2008 | CN100376728C Apparatus for injecting a liquid dye into a polymer melt |
| 03/20/2008 | US20080069704 Pumping System |
| 03/19/2008 | EP1523623B1 Non-proportional flow control valve for a vane pump |
| 03/19/2008 | CN101147002A Vane cell pump |
| 03/19/2008 | CN101147000A Vane cell pump |
| 03/19/2008 | CA2601152A1 Box end sucker rod shear coupling |
| 03/18/2008 | US7344361 Variable-delivery vane pump |
| 03/12/2008 | EP1320682B1 Vane pump |
| 03/12/2008 | EP1317624B1 Hydraulic system comprising a main pump and a precompression pump |
| 03/12/2008 | CN100374728C Hydraulic pump apparatus |
| 02/28/2008 | WO2008022672A1 Feed pump |
| 02/20/2008 | EP1888919A2 Gear machine for combining two fluid streams and associated method |
| 02/19/2008 | CA2359783C Variable capacity type pump |
| 02/19/2008 | CA2185482C Pump with improved bearing arrangement for axial position control |
| 02/14/2008 | US20080038117 Pumping System Employing a Variable-Displacement Vane Pump |
| 02/13/2008 | EP1292773B1 Pump |
| 02/13/2008 | CN101124406A Device for controlling parasitic losses in a fluid pump |
| 02/12/2008 | US7330779 Method and system for improving pump efficiency and productivity under power disturbance conditions |
| 02/07/2008 | WO2007122463A3 A pressure dissipater device for a hydraulic circuit |
| 01/31/2008 | WO2008014306A2 Compliant-seal check valve |
| 01/29/2008 | CA2186063C Internal relief and bypass valve for pumps and piping systems |
| 01/22/2008 | CA2235570C Cavitation-free gear pump |
| 01/17/2008 | DE102006059595A1 Lubricating oil supply for internal combustion engine has spring limiting deflection of centrifugal oil feed regulator |
| 01/16/2008 | CN100362263C Lubricatnig pump for interaxial differential mechanism |
| 01/15/2008 | US7318705 Variable displacement pump with communication passage |
| 01/10/2008 | WO2008003169A1 A variable capacity pump with dual springs |
| 01/10/2008 | DE10333815B4 Schweißverfahren für rohrförmiges Element sowie Zahnradpumpe, die mit dem Schweißverfahren hergestellt ist A method for welding tubular member and gear pump, which is produced by the welding process |
| 01/10/2008 | DE102005036483B4 Hydraulische Rotationsmaschine Hydraulic rotary machine |
| 01/03/2008 | US20080003123 Capacity Varying Type Rotary Compressor |
| 01/02/2008 | EP1873363A2 Variable displacement pump and control therefor |