Patents
Patents for F04B 49 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups (22,036)
06/2004
06/15/2004US6748739 Hydraulic power system
06/10/2004WO2004048780A1 Metered quantity transfer device
06/10/2004US20040109768 Variable discharge pump
06/10/2004US20040108825 Apparatus and method for controlling driving of linear motor
06/10/2004US20040107828 Continuously variable displacement pump with predefined unswept volume
06/10/2004US20040107716 Method of operating a refrigeration cycle
06/09/2004EP1426620A2 Variable speed control of multiple motors
06/09/2004EP1425517A1 Device and method used to automatically compensate for synchronous disturbances
06/09/2004EP1133639B1 Pump controller for precision pumping apparatus
06/09/2004DE10355190A1 Kompressorsystem und Klimasystem Compressor system and cooling system
06/09/2004CN1503879A Fluid controlled pumping system and method
06/09/2004CN1502814A Compressor driving device and freezing air conditioner device
06/08/2004US6747432 Drive apparatus for cooling fan motor for use in vehicle
06/08/2004US6747428 Device and method for controlling supply of current and static capacitance to compressor
06/08/2004US6746606 Method and system for matching flow rate
06/08/2004US6746211 Operation control method utilizing resonance frequency of reciprocating compressor
06/08/2004CA2086298C Process and device for optimizing the transfer through pumping of multiphase effluents
06/03/2004WO2004046552A1 Pump driving method and device therefor
06/03/2004WO2004046550A1 A control system for the movement of a piston
06/03/2004WO2004046534A1 Solenoid regulated pump assembly
06/03/2004WO2004032994A3 Fluid delivery device, system and method
06/03/2004US20040105765 Oil pump apparatus
06/03/2004US20040105761 High-pressure fuel pump with integrated blocking-vane prefeed pump
06/03/2004US20040105759 High pressure pump system for supplying a cryogenic fluid from a storage tank
06/03/2004DE19713934B4 Lastdruckgeführter Förderstromregler mit Spülkreislauf Load pressure-flow regulator with flushing circuit
06/03/2004DE10352024A1 Elektromagnetventil Solenoid valve
06/03/2004DE10350017A1 Axialkolbenpumpe mit Strömungsmittellageranordnung Axial piston pump with fluid bearing arrangement
06/03/2004DE10348560A1 Elektrohydraulische Pumpenverdrängungssteuerung mit proportionaler Kraftrückkoppelung Electro-hydraulic pump displacement control with proportional force feedback
06/03/2004DE10254041A1 Verfahren und Vorichtung zur Störungsfrüherkennung bei Kreiselpumpen Procedures and Vorichtung for early fault detection for centrifugal pumps
06/03/2004DE10228673B4 Rückdruckregulator Back pressure regulator
06/02/2004EP1167759B1 Variable displacement compressor
06/02/2004CN1501077A Method and apparatus of detecting the condition of a centrifugal pump
06/02/2004CN1152256C Electroosmotic current driven high-pressure transfusion pump
06/01/2004US6742996 Scroll compressor with mechanically actuated capacity control
06/01/2004US6742995 Air compressor assembly
06/01/2004US6742994 Reciprocating pump with malfunction detecting apparatus
06/01/2004US6742992 Infusion device with disposable elements
06/01/2004US6742441 Continuously variable displacement pump with predefined unswept volume
06/01/2004CA2260684C Pump enable system and method
05/2004
05/27/2004WO2004044426A1 Syringe pump
05/27/2004US20040101420 Solenoid regulated pump assembly
05/27/2004US20040101419 Axial piston pump with fluid bearing arrangement
05/27/2004US20040101417 Volume control apparatus of radial piston pump or motor and positioning apparatus
05/27/2004US20040101413 Control device of linear compressor drive system
05/27/2004US20040099136 Electro-hydraulic pump displacement control with proportional force feedback
05/27/2004DE3930542B4 Radialkolbenpumpe Radial piston pump
05/26/2004EP1422424A2 Method and apparatus for the early detection of failures in a centrifugal pump
05/26/2004EP1422084A2 Power-saving control device for air-conditioning system
05/26/2004CN2617954Y Chemical double component injecting pump
05/26/2004CN1499188A Method and device for detecting centrifugal pump fault
05/26/2004CN1499078A Control valve for variable capacity compressor
05/26/2004CN1151337C Variable displacement compressor
05/25/2004US6741056 Air sampler with compensating pump motor speed
05/25/2004US6739843 Control valve and variable displacement compressor having the same
05/25/2004US6739129 Electrohydraulic motor pump aggregate, attachable element and pressure limiting valve
05/21/2004WO2004042232A1 Compressor
05/21/2004WO2004042231A1 Compressor
05/20/2004US20040097885 Feeding set adaptor
05/20/2004US20040096334 Pump system comprising a hydraulic pump, particularly for a steering system
05/20/2004US20040093870 Vehicle control system
05/19/2004EP1420165A2 Method and apparatus of detecting the condition of a centrifugal pump
05/19/2004EP1420163A2 Control valve for variable capacity compressor
05/19/2004EP1419316A1 Method for controlling a thick matter pump
05/19/2004EP1266195B1 Continuous liquid flow system
05/19/2004EP1045975B1 Control unit for controlling the build-up of pressure in a pump unit
05/19/2004CN2616713Y Hydraulic control module for concrete pump
05/19/2004CN2616705Y Bogheadite coal conveying pump
05/19/2004CN1498312A Variable capacity compressor having adjustable crankpin threw structure
05/19/2004CN1497181A Service life forcasting method of whirler and manufacturing device with whirler
05/19/2004CN1497180A Service life forcasting system of wshirler, service life forcasting method of whirler and manufacturing device with whirler
05/19/2004CN1497179A Control valve of variable capacitance compressor
05/18/2004US6736605 Tandem pump unit
05/18/2004US6735962 Composite auxiliary machine for vehicle and control unit thereof
05/18/2004CA2111495C System and method for operating a respirator compressor system under low voltage conditions
05/13/2004WO2004040138A1 Dual capacity compressor
05/13/2004WO2004040137A1 Control system for a pumping unit
05/13/2004US20040092789 Pump driving unit for driving a pump used for supporting or substitution of cardiac function
05/13/2004US20040091374 Pump chamber having at least one spacer for inhibiting the pumping of a gas
05/13/2004US20040091368 Control valve for variable capacity compressor
05/13/2004US20040091367 Variable injection rate high pressure fuel pump
05/13/2004US20040091365 Method of stepless capacity control of a reciprocating piston compressor and piston compressor with such control
05/13/2004US20040090197 Method and apparatus of detecting disturbances in a centrifugal pump
05/13/2004DE10329963A1 Operation control apparatus for reciprocating compressor, has controller which varies voltage applied to motor and operating frequency of compressor based on comparison of second stroke value and stroke reference value
05/13/2004DE10329314A1 Pump for introducing a liquid into a chromatograph comprises chambers, plungers forming a first and a second volume with the chambers, a liquid connecting channel, a liquid inlet channel, and a liquid outlet channel
05/13/2004DE10302481A1 Motor driving apparatus for use in reciprocating compressor, has capacitor to apply power voltage supplied from power supply unit to motor when positive temperature coefficient device cuts off power voltage
05/12/2004EP1418339A2 Method and apparatus of detecting disturbances in a centrifugal pump
05/12/2004EP1418335A2 Variable injection rate high pressure fuel pump
05/12/2004EP1417461A2 Novel piezoelectric transducer assemblies and methods for their use
05/12/2004EP1417415A1 Constant-pressure pump controller system
05/12/2004CN2615377Y Compressor running capacity fixing device for outdoor machine of split air conditioner
05/12/2004CN2615376Y Digit control system for air compressor
05/12/2004CN2615370Y Automatic feeding lubricant oil protector for air compressor
05/12/2004CN2615102Y Loading sensitive steering hydraulic system for loader
05/12/2004CN1495433A System and method for detecting open-phase of compressor system
05/12/2004CN1495396A Air conditioner, outdoor unit and refrigerating unit
05/11/2004US6735284 System for controlling motor and method for the same
05/11/2004US6733250 Filter unit, chemical liquid supply system, and chemical liquid supply method
05/11/2004US6733248 Fluid pumping apparatus
05/11/2004US6733246 Control device for variable displacement type compressor
05/06/2004WO2004038219A1 Fluid dispenser calibration system and method