| 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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| 04/19/2006 | EP1647704A1 Fuel pressure regulation valve |
| 04/19/2006 | CN1760551A Electricity saving method of walking beam type pumping unit, and electricity saving mode walking beam typed pumping unit |
| 04/19/2006 | CN1252392C Hydraulic pump control device |
| 04/19/2006 | CN1252388C Changeable displacement compressor able to reducing noise produced |
| 04/19/2006 | CN1251897C Vehicle air conditioner and its control method |
| 04/18/2006 | US7029239 Piecewise linear control of the duty cycle of a pulse width modulated signal |
| 04/18/2006 | US7029238 Pump controller for precision pumping apparatus |
| 04/18/2006 | US7029164 Automated system and process for the preparation of a high viscosity fluid formulation |
| 04/18/2006 | US7028659 Method for adjusting a volumetric flow-variable positive displacement pump in an internal combustion engine |
| 04/18/2006 | US7028495 Refrigerant cycle apparatus |
| 04/18/2006 | US7028491 Method and apparatus for reducing inrush current in a multi-stage compressor |
| 04/18/2006 | US7028472 Pump unit |
| 04/18/2006 | US7028470 Apparatus for executing activities assisted by hydromotors and a hydraulic transformer for use in such an apparatus |
| 04/13/2006 | WO2006039719A2 Subsea fluid delivery system and method |
| 04/13/2006 | US20060079833 Syringe pump |
| 04/13/2006 | US20060078444 Liquid-cooled pump control device and fluid pump assembly |
| 04/13/2006 | US20060078436 Pump or turbine drive unit comprising such a pump or turbine and outboard motor |
| 04/13/2006 | US20060078435 Pump monitoring system |
| 04/13/2006 | DE10314195B4 Mit Drehmomentbegrenzer ausgestatteter Kompressor Equipped with torque limiter compressor |
| 04/13/2006 | DE10225007B4 Vorrichtung und Verfahren zur Betriebssteuerung eines Kolbenverdichters Apparatus and method for controlling the operation of a reciprocating compressor |
| 04/13/2006 | DE102005020408B3 Hydraulic circuit for motor vehicle has jet pump which in dependence upon temperature dependent hydraulic resistance of consumer is designed to deliver first predetermined overall volume flow at first operating temperature |
| 04/13/2006 | DE102004048940A1 Method for controlling the operation of a chiller system has the suction chamber of the piston type compressor periodically isolated by a pulse width modulated control signal |
| 04/13/2006 | DE102004046950A1 Electric motor drive for pressure pump using a brushless electronically commutating DC motor with several phase coils and with rotor position determination |
| 04/13/2006 | CA2583270A1 Subsea fluid delivery system and method |
| 04/13/2006 | CA2580531A1 Air compressor assembly support structure |
| 04/12/2006 | EP1644640A1 Method for controlling operation of a compressor |
| 04/12/2006 | CN2771515Y Protective pump line equipment for electric oil-submersible pump production opreation |
| 04/12/2006 | CN2771514Y Air compressor secondary start unloading device |
| 04/12/2006 | CN2771512Y Direct-curren slotless brushless oil-less lubricating air compressor |
| 04/12/2006 | CN1759257A A device for controlling hydraulic power units |
| 04/12/2006 | CN1759255A A device for controlling a hydraulically driven motor |
| 04/12/2006 | CN1759253A Arrangement for controlling a hydraulically driven motor |
| 04/12/2006 | CN1759248A Air compressor unit inlet control |
| 04/12/2006 | CN1250337C Liquid pump dispenser capable of preventing child from using |
| 04/11/2006 | US7025572 Compressor with integral control unit |
| 04/11/2006 | US7025571 Apparatus and method for controlling a reciprocating compressor |
| 04/11/2006 | US7024875 Air conditioning apparatus using variable displacement compressor |
| 04/11/2006 | CA2253435C Hybrid magnetically suspended and rotated centrifugal pumping apparatus and method |
| 04/06/2006 | WO2006035171A1 Method for the electrical protection of an electrical household appliance |
| 04/06/2006 | US20060073047 Method for estimating drive torque of variable displacement compressor and system for controlling drive source rotation speed |
| 04/06/2006 | US20060073027 Vane pump |
| 04/06/2006 | US20060071965 Pump control mechanism, printer incorporating the same, and pump control method |
| 04/06/2006 | DE19933202B4 Verfahren zum Betreiben mehrstufiger Verdichter A method for operating a multi-stage compressor |
| 04/06/2006 | DE102004048174A1 Swallowing capacity determining device for adjustable radial piston engine, has rotational angle analog sensor fixed to rotatably supported cylinder of engine, where angle of rotation of sensor is proportional to actual capacity of engine |
| 04/06/2006 | DE10032893B4 Brennstoffzuführvorrichtung für variable Förderung Fuel supply for variable promotion |
| 04/05/2006 | EP1643124A2 Displacement control mechanism for variable displacement compressor |
| 04/05/2006 | EP1427941A4 Engine driven compressor |
| 04/05/2006 | EP1425517B1 Device and method used to automatically compensate for synchronous disturbances |
| 04/05/2006 | EP1188027B1 Refrigerant compressor driven by variable supply frequency motor |
| 04/05/2006 | CN2769554Y Folding structure for bundling protector sleeve |
| 04/05/2006 | CN2769553Y Screw pump turnback controller |
| 04/05/2006 | CN2769552Y Tower type hydraulic long-stroke beam-pumping unit |
| 04/05/2006 | CN2769361Y Non-storing water type well water automatic supplying device |
| 04/05/2006 | CN1756906A Linear compressor control system,method for controlling linear compressor, linear compressor and refrigeration system |
| 04/05/2006 | CN1756900A Traveling-type hydraulic working machine |
| 04/05/2006 | CN1756899A Control device for working vehicle |
| 04/05/2006 | CN1755112A Compressor |
| 04/05/2006 | CN1755111A Water supply device |
| 04/05/2006 | CN1755110A Water supply device |
| 04/05/2006 | CN1755109A Initiate control method of volume-variable compressor |
| 04/05/2006 | CN1249359C Oil-pressure control device of building machine |
| 04/05/2006 | CN1249346C Piston initial position regulator for reciprocating movement compressor |
| 04/05/2006 | CN1249007C Transporting method and transporting facility for easily polymerizable material |
| 04/04/2006 | US7022044 Drive train for powering a mobile vehicle |
| 04/04/2006 | US7021902 Hybrid compressor |
| 04/04/2006 | US7021725 Pump drive motor control apparatus |
| 04/04/2006 | US7021027 Vacuum pump control and vacuum feedback |
| 04/04/2006 | CA2392389C Pressure relief valve assembly |
| 03/30/2006 | WO2006034197A2 Method for mitigating rod float in rod pumped wells |
| 03/30/2006 | WO2006032234A1 Compressor |
| 03/30/2006 | WO2006032156A1 Membrane pump with bleed valve |
| 03/30/2006 | WO2006032132A1 Pump with selectable outlet pressure |
| 03/30/2006 | WO2006032131A1 Speed-related control mechanism for a pump and control method |
| 03/30/2006 | US20060067837 Vehicle air conditioner in which shaft seal is protected |
| 03/30/2006 | US20060067835 Rotary compressor and method of operating a rotary compressor |
| 03/30/2006 | US20060067834 Method for mitigating rod float in rod pumped wells |
| 03/30/2006 | US20060067833 Integral add heat and surge control valve for compressor |
| 03/30/2006 | DE102004041661A1 Pump stations and pumps control method in pipeline, involves total energy consumption of all pumps minimised at predetermined total flow and height |
| 03/30/2006 | DE102004040476B4 Kapazitäts-Steuerventil A capacity control valve |
| 03/30/2006 | DE10085412B4 Vorrichtung und Verfahren zum Steuern einer Kolbenposition in einem Linearkompressor Apparatus and method for controlling a piston position in a linear compressor |
| 03/30/2006 | CA2822615A1 Speed-related control mechanism for a pump and control method |
| 03/30/2006 | CA2581123A1 Pump with selectable outlet pressure |
| 03/30/2006 | CA2581120A1 Speed-related control mechanism for a pump and control method |
| 03/30/2006 | CA2580626A1 Method for mitigating rod float in rod pumped wells |
| 03/30/2006 | CA2579162A1 Membrane pump with air release valve |
| 03/29/2006 | EP1639258A2 Pump and pump control circuit apparatus and method |
| 03/29/2006 | CN2767764Y Hydraulic automatic transmission |
| 03/29/2006 | CN2767704Y Pressure relief regulating device for diaphragm pump for direct drinking machine |
| 03/29/2006 | CN1754306A Compressor driving unit and refrigerator using the same |
| 03/29/2006 | CN1752674A Air conditioner control logic for compressor noise and torque management |
| 03/29/2006 | CN1752359A Water feeding device and frequency changer |
| 03/29/2006 | CN1248077C Solid-state liquid sensor and pump controller |
| 03/29/2006 | CN1247896C Equipment and method for controlling linear compressor |
| 03/29/2006 | CN1247895C Volume changeable compressor control valve |
| 03/29/2006 | CN1247173C Inflatable support pad |
| 03/28/2006 | US7020553 Signal processing system for construction machine |
| 03/28/2006 | US7018477 Dispensing system with a piston position sensor and fluid scanner |
| 03/28/2006 | US7018180 Vacuum preventing device of scroll compressor |
| 03/28/2006 | US7018179 Capacity control valve for variable displacement compressor |
| 03/28/2006 | US7018178 Variable displacement pump and control therefore for supplying lubricant to an engine |