| 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) |
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| 12/30/2004 | DE102004004943A1 Operation control method of reciprocating motion type compressor used in air-conditioner, involves applying direct current voltage and alternating voltage to compressor, when compressor load corresponds to specific load conditions |
| 12/29/2004 | WO2004113726A1 Improvements in and relating to portable liquid dispensers having peristaltic pumps |
| 12/29/2004 | WO2004113725A1 Flow path-switching valve, compressor with flow path- switching valve, and air conditioner for mounting on motor vehicle |
| 12/29/2004 | EP1491375A2 Compressor output calculation unit and control unit using the same |
| 12/29/2004 | EP1491374A2 Unit for calculating torque in refrigeration cycle and control unit using the same |
| 12/29/2004 | EP1491227A2 Portable drag compressor powered mechnical ventilator |
| 12/29/2004 | EP1490598A1 Head pressure relief assembly |
| 12/29/2004 | CN2667199Y Safety valve of air compressor |
| 12/29/2004 | CN2667197Y Variable frequency control high pressure slip casting pump |
| 12/29/2004 | CN1182328C Equipment and method for controlling linear compressor |
| 12/28/2004 | US6834513 Crankcase heater control |
| 12/23/2004 | WO2004111782A2 Clinical assessment and diagnostic tool for peristaltic pump |
| 12/23/2004 | WO2004111452A1 High-pressure pump |
| 12/23/2004 | WO2004110146A1 Method and apparatus for pressure control for maintaining viability of organs |
| 12/23/2004 | WO2004065792A3 Integrated control system for beam pump systems |
| 12/23/2004 | US20040260441 Method of controlling a compressor driven by the engine of a vehicle |
| 12/23/2004 | US20040260425 Fuel-pump controller |
| 12/23/2004 | US20040260409 Vacuum pump |
| 12/23/2004 | US20040258536 Displacement control mechanism of variable displacement type compressor |
| 12/23/2004 | US20040258533 Method of managing time, at which maintenance in a gas compressor multiple system should be carried out |
| 12/23/2004 | US20040258532 Runaway protection for sprayer |
| 12/23/2004 | US20040257023 Device and method used to automatically compensate for synchronous disturbance |
| 12/23/2004 | US20040256501 Fluid delivery system for spray applicator |
| 12/23/2004 | DE102004027000A1 Fluidmaschine Fluid machine |
| 12/23/2004 | CA2528036A1 Method and apparatus for pressure control for maintaining viability of organs |
| 12/22/2004 | EP1489368A2 An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 12/22/2004 | EP1489304A1 Displacement control mechanism of a variable displacement type compressor |
| 12/22/2004 | EP1232352B1 Pressure relief valve assembly |
| 12/22/2004 | EP1230481B1 Radial piston pump |
| 12/21/2004 | US6832898 Driving apparatus of a linear compressor |
| 12/21/2004 | US6832888 Molecular pump for forming a vacuum |
| 12/21/2004 | US6832620 Apparatus for dosing lubricant into an air line |
| 12/16/2004 | WO2004109106A2 Pump and pump control circuit apparatus and method |
| 12/16/2004 | DE10322868A1 Verfahren zur Regelung einer von einem elektromotorisch angetriebenen Exzenter betätigten Membran- oder Kolbenpumpe Method for controlling an electric motor driven by an eccentric actuated diaphragm or piston pump |
| 12/16/2004 | DE10321771A1 Verfahren zur Leistungsbegrenzung eines mehrstufigen Kompressor und Kompressor zur Durchführung des Verfahrens A method for limiting the power of a multistage compressor and compressor for carrying out the method |
| 12/16/2004 | CA2528270A1 Pump and pump control circuit apparatus and method |
| 12/15/2004 | EP1487091A2 Linear motor |
| 12/15/2004 | EP1486673A1 Vacuum pump control device, and vacuum device |
| 12/15/2004 | EP1486671A1 Thermally-actuated switch |
| 12/15/2004 | EP1486670A2 Linear compressor and control method thereof |
| 12/15/2004 | EP1485767A2 Network communication and message protocol for a medical perfusion system |
| 12/15/2004 | EP1485617A1 Dynamic brake with backlash control for peristaltic pump |
| 12/15/2004 | EP1485613A1 Method and apparatus for controlling fluid pumps |
| 12/15/2004 | EP1485612A1 A position sensor and a linear compressor |
| 12/15/2004 | CN2663689Y Single-purpose speed reducer for submersible pump |
| 12/15/2004 | CN2663688Y Automatic control device of air compressor |
| 12/15/2004 | CN2663687Y Operating device of hydraulic pressure control motor of tap water |
| 12/15/2004 | CN1180214C Method for protecting compressor used in cooling device and/or heat pump |
| 12/14/2004 | US6830438 Hybrid compressor |
| 12/14/2004 | US6830064 Leak control valve |
| 12/09/2004 | WO2004106820A1 Method of controlling compressor and controller |
| 12/09/2004 | WO2004106736A1 Method for detecting the state of charge of an electromagnetic pump having a vibrating core and pertaining to an electrical household appliance |
| 12/09/2004 | US20040247469 Power-assisted steering pump |
| 12/09/2004 | US20040247466 Linear compressor for multi-stage compression |
| 12/09/2004 | US20040247458 Fluid machine |
| 12/09/2004 | US20040247452 Method of controlling a plurality of compressors |
| 12/09/2004 | US20040245862 Linear motor, method for controlling the same, and linear compressor equipped with the same |
| 12/09/2004 | US20040244369 Drive with a hydro machine |
| 12/09/2004 | DE10322404A1 Control method for dosing pump, in which pump output is controlled using an externally generated pulse sequence, which is interpreted by a control unit and used to set the instantaneous pumping amount |
| 12/09/2004 | DE102004021223A1 Fluidzuleitungssystem für eine Sprühauftragsvorrichtung Fluid supply system for a spray applicator |
| 12/08/2004 | EP1484532A2 A drive assembly for a supply unit |
| 12/08/2004 | EP1483505A1 Hydraulic system comprising a variable displacement pump |
| 12/08/2004 | EP1017941B1 Identification and communication system for inflatable devices |
| 12/08/2004 | CN1179134C Method for regulating pump transport volume |
| 12/08/2004 | CN1179125C Volume variable swashplate compressor and capacity controller |
| 12/07/2004 | US6829542 Pump and method for facilitating maintenance and adjusting operation of said pump |
| 12/02/2004 | WO2004104495A2 Discharge muffler placement in a compressor |
| 12/02/2004 | WO2004104494A2 Discharge muffler having an internal pressure relief valve |
| 12/02/2004 | WO2004104419A1 A sensor assembly, a fluid pump and a cooler |
| 12/02/2004 | WO2004104418A1 Method for controlling a pump means |
| 12/02/2004 | WO2004103888A2 Systems and methods for providing a dynamically adjustable reciprocating fluid dispenser |
| 12/02/2004 | US20040241634 Monitoring and controlling output pressue of pump associated with perfusion of liquids through organs/tissue; organ transport and transplantation; decreasing reperfusion injuries |
| 12/02/2004 | US20040241026 Multidirectional drive for gas cylinders |
| 12/02/2004 | US20040241013 Crank shaft in dual capacity compressor |
| 12/02/2004 | US20040241007 Variable displacement piston type pump |
| 12/02/2004 | US20040239266 Apparatus and method for controlling operation of a reciprocating compressor |
| 12/02/2004 | US20040239174 Pump drive motor control apparatus |
| 12/02/2004 | DE10320021A1 Kältemittelkompressoranordnung Refrigerant compressor assembly |
| 12/01/2004 | CN2660169Y Mechanical diaphragm position control system |
| 12/01/2004 | CN1551467A Motor driving apparatus |
| 12/01/2004 | CN1551466A Motor driving apparatus |
| 12/01/2004 | CN1550943A Method of managing time, at which maintenance in system of a plurality of gas compressors should be carried out |
| 12/01/2004 | CN1550738A Method of controlling a plurality of compressors |
| 12/01/2004 | CN1550671A Cooling medium compressor arrangement |
| 12/01/2004 | CN1550389A Electronically controlled hydraulic brake system |
| 12/01/2004 | CN1178115C Gas flow controls system for compressor |
| 12/01/2004 | CN1178008C Control device for construction machine |
| 12/01/2004 | CN1178007C Pump system and method for varying margin pressure |
| 12/01/2004 | CN1178003C Pump control method and pump control device |
| 11/30/2004 | US6823845 Fuel injection system with improved regulation of pumping quantities |
| 11/30/2004 | US6823686 Pressure equalization system and method |
| 11/30/2004 | US6823672 Control device for construction machine |
| 11/25/2004 | WO2004102006A1 System for controlling compressor of cooling system and method for controlling the same |
| 11/25/2004 | WO2004101993A1 Air compressor |
| 11/25/2004 | US20040236173 Implantable heart assist system and method of applying same |
| 11/25/2004 | US20040234394 Linear motor |
| 11/25/2004 | US20040234387 Muffler system for a compressor |
| 11/25/2004 | US20040234386 Discharge muffler having an internal pressure relief valve |
| 11/25/2004 | US20040234381 Screw compressor capable of manually adjusting both internal volume ratio and capacity and combined screw compressor unit accommodating variation in suction or discharge pressure |
| 11/25/2004 | US20040234377 Dosing pump |