Patents for F04C 14 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations (3,663)
04/2004
04/01/2004DE10244203A1 Hydraulic pump angular velocity determination method in which a transport pressure of the pump is measured and the frequency of pressure peaks within the pressure signal related to pump angular velocity
03/2004
03/31/2004CN1486404A Lubrication pump for inter-axle differential
03/30/2004US6712906 Control system for metering pump and method
03/30/2004US6712585 Magnetic pump
03/25/2004WO2003083311B1 Motor pump
03/25/2004US20040057860 Trochoidal pump
03/25/2004DE10333815A1 Schweißverfahren und rohrförmiges Element sowie Zahnradpumpe, die mit dem Schweißverfahren hergestellt ist Welding processes and tubular member as well as gear pump, which is produced by the welding process
03/23/2004US6709245 Regulated pump
03/23/2004US6709242 Variable displacement pump
03/18/2004DE10242305A1 Pump motor rotational velocity measurement method wherein the velocity is determined from measured pressure pulses, which are processed to suppress high frequency variations
03/18/2004DE10239558A1 External gearwheel pump has at least one compressed fluid feed opening out on LP side in feed cell which lies radially opposite one radial sealing land
03/18/2004DE10239364A1 Einrichtung zur Regelung der Pumpleistung einer Schmiermittelpumpe für eine Brennkraftmaschine Means for controlling the pumping capacity of a lubricant pump for an internal combustion engine
03/17/2004EP1042855B1 Driving mechanism for a pump
03/17/2004CN1482361A Trochoidal pump
03/11/2004WO2004020831A1 Device for adjusting the pumping capacity of a lubricant pump for an internal combustion engine
03/11/2004WO2004020830A1 Toothed wheel feed pump
03/11/2004WO2004020829A1 Toothed wheel feed pump
03/11/2004US20040047741 Vane pump with undervane feed
03/11/2004DE10240499A1 Single-stroke vane cell pump has cam ring connected to housing via support, adjustable and movement in direction of stroke to eliminate stroke-dependent momentum acting on ring
03/11/2004DE10239428A1 Zahnradförderpumpe Gear pump
03/11/2004DE10239426A1 Zahnradförderpumpe Gear pump
03/09/2004US6702703 Lubrication pump for inter-axle differential
03/04/2004WO2004018871A1 Vane-type hydraulic motor
03/04/2004US20040042913 Power steering pump
03/04/2004US20040042912 Power steering pump having electronic bypass control related applications
03/04/2004US20040040595 Power steering pump comprising cartridge flow control assembly
03/04/2004DE10238821A1 Hydraulic power steering for motor vehicle has throttle valve to close pressure side of pump on start up
03/03/2004EP1394416A2 Dual discharge hydraulic pump and system therefor
02/2004
02/19/2004WO2004015271A1 Non-proportional flow control valve for a vane pump
02/19/2004DE10234621A1 Regulator for variable vane cell pump for use in vehicle power steering systems, has pressure limiting for pressure side supply connection integrated into pump actuator control to reduced transport quantity depending on limiting pressure
02/17/2004CA2262442C In-tank fuel pump assembly with unitary control unit for internal combustion engines
02/12/2004WO2004013386A2 Device and method for injecting a liquid colour into a polymer melt
02/12/2004US20040029662 Method of and apparatus for shaft speed detection by monitoring pump output
02/12/2004DE19917506B4 Verstellbare Flügelzellenpumpe Variable displacement vane pump
02/12/2004DE10305585B3 Rotary pump for hydraulic fluid has slide between compression and induction connections to alter effective size of at least one connection
02/12/2004DE10233468A1 Vorrichtung und Verfahren zum Einspeisen einer flüssigen Farbe in eine Polymerschmelze Apparatus and method for injecting a liquid dye into a polymer melt
02/11/2004EP1387960A1 Method for adjusting a volumetric flow-variable positive displacement pump in an internal combustion engine
02/11/2004EP1387959A2 Fluid controlled pumping system and method
02/10/2004US6688862 Constant flow vane pump
02/10/2004US6688851 Oil pump for controlling planetary system torque
02/05/2004US20040022640 Method for calibrating a pressure sensor or a flow sensor at a rotary pump
02/05/2004DE10233579A1 Impeller pump flow regulation valve has a control spring with lengths having different spring constants so that the pump characteristic curve is linear, even at high flow rates
02/05/2004DE10230407A1 Inner geared pump, as a lubricating pump for a vehicle IC motor, has a sealing bar with a variable length to set the volume of lubricant discharged by the pump
01/2004
01/29/2004WO2004009992A1 Cam ring bearing for fuel delivery system
01/29/2004WO2004009980A1 Improved fuel delivery system
01/29/2004WO2003083311A3 Motor pump
01/29/2004DE10229062A1 Druckmittelpumpe Pressure pump
01/28/2004EP1384005A1 Variable displacement pump having a rotating cam ring
01/28/2004EP1135214B1 A gear pump and replaceable reservoir for a fluid sprayer
01/28/2004CN1470781A Lubricatnig pump for interaxial differential mechanism
01/22/2004WO2004007966A1 Oil pump
01/22/2004US20040011052 Fuel delivery system
01/21/2004EP1382796A2 Hydraulic rotating motor with cable duct and vehicle with such a motor
01/20/2004US6679691 Anti cavitation system for two-speed motors
01/20/2004US6679684 Pump device having a device for restricting movement of a movable member movable to pressurize working fluid
01/15/2004DE10229809A1 Flügelzellenpumpe Vane pump
01/14/2004EP1380754A2 Trochoidal pump
01/13/2004US6675823 Relief valve
01/08/2004WO2004003345A1 Internal gear machine with variable capacity
01/07/2004EP1378687A2 Lubrication pump for inter-axle differential
01/07/2004EP1378665A1 Vane pump
01/07/2004EP1259737B1 Control device for positive displacement pumps
01/06/2004US6672850 Torque control oil pump with low parasitic loss and rapid pressure transient response
01/06/2004US6672842 Rotociprocating pump
01/02/2004EP1375922A2 Oil vane pump
01/01/2004CA2433824A1 Lubrication pump for inter-axle differential
12/2003
12/30/2003US6668851 Fool-proof plug in fluid system
12/24/2003CN1463330A 内齿轮泵 Internal gear pump
12/18/2003WO2003104655A1 Pump unit
12/18/2003WO2003040565A3 Continuous-flow pump and stepless speed change drive
12/18/2003US20030231965 Variable displacement pump and control therefor
12/17/2003EP1370771A1 Self-centering gear pump
12/16/2003US6663357 Vane pump wear sensor for predicted failure mode
12/09/2003US6659748 Axial compensation in an inner geared pump for a closed circuit
12/09/2003US6659744 Rotary two axis expansible chamber pump with pivotal link
12/09/2003US6659728 Liquid dispensing pump system
12/04/2003WO2003100255A1 Rotor machine
12/04/2003DE10255271C1 Rotor pump with variable flow volume adjusted via rotatable setting ring altering relative positions of inner and outer rotors relative to suction and pressure connections
11/2003
11/26/2003EP1364126A1 Internal gear pump that does not contain any filler elements
11/26/2003CN1128932C Rotary machine
11/20/2003WO2003095840A1 Variable-delivery rotary pump, in particular for oil
11/20/2003WO2003044368A8 Vane pump having a pressure compensating valve
11/19/2003EP1363025A2 Variable capacity pump
11/18/2003US6648611 Gerotor pump having an eccentric ring housing with an integral pressure chamber
11/05/2003CN1453477A Hydraulic pump apparatus
11/04/2003US6641372 Dual discharge hydraulic pump and system therefor
10/2003
10/30/2003US20030202895 Automatic wear indicator for sliding vane vacuum and gas pressure pumps
10/30/2003US20030202888 Pump apparatus
10/30/2003US20030202887 Vent for reducing seal pressure in pump assembly
10/29/2003EP1357290A2 Pump apparatus with bypass flow control valve
10/29/2003EP1356208A1 Pump system comprising a hydraulic pump, particularly for a steering system
10/29/2003EP1356206A2 Method for maintaining a constant output variable of a feed pump, e.g. the displaced volume thereof which is actuated by a speed variable drive device, and a device for carrying out said method
10/28/2003US6637313 Rotary pump
10/28/2003US6637184 Flow control system for liquid fuel engine having stage-specific control of fuel flow to several groups of nozzles in the engine
10/23/2003WO2003029660A9 Velocity-regulating hydraulic valve device
10/23/2003US20030196697 Relief valve
10/21/2003US6634865 Vane pump with undervane feed
10/16/2003DE10232421C1 Hydraulic rotary motor for rotation of electrical load mounted on a vehicle, e.g. an excavator, has electrical supply leads for latter fed through stationary head of motor
10/15/2003EP1352184A1 Lubication pump for inter-axle differential
10/09/2003WO2003083311A2 Motor pump
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