| 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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| 02/03/2011 | US20110023444 Variable speed and displacement electric fluid delivery system for a gas turbine engine |
| 02/03/2011 | DE10322404B4 Dosierpumpe und Verfahren zu deren Steuerung Metering pump and method of controlling |
| 02/02/2011 | EP2280174A1 Hydraulic cylinder, oil pumping unit, oil pumping module and oil pumping system |
| 02/02/2011 | CN201730814U Improved aluminum alloy control valve for piston type auto air conditioning compressor |
| 02/02/2011 | CN201730813U Electric control device for piston-type biogas residue and slurry discharging pump |
| 02/02/2011 | CN201730812U Full automatic variable frequency control coal mine underground fracturing pump group |
| 02/02/2011 | CN201730811U 光伏水泵控制器 Solar Pump Controller |
| 02/02/2011 | CN201730787U Ultrahigh pressure hydraulic pump station |
| 02/02/2011 | CN1699735B Method of holding fuel directly spray into internal-combustion engine |
| 02/02/2011 | CN101965274A Hydraulic arrangement for a power-actuated actuator |
| 02/02/2011 | CN101963149A Frequency conversion control method and device as well as refrigeration equipment with same |
| 02/02/2011 | CN101963148A Pumping termination and energy saving control method for variable frequency water supply equipment provided with PLC control cabinet |
| 02/02/2011 | CN101963147A Control panel and corresponding devices of airflow generating equipment |
| 02/02/2011 | CN101963144A Cryopump and method of monitoring cryopump |
| 02/01/2011 | US7878770 Hydraulic circuit of construction machine |
| 02/01/2011 | US7878766 Pump and pump control circuit apparatus and method |
| 02/01/2011 | US7878765 System and method for monitoring operation of a pump |
| 02/01/2011 | CA2613866C Pump set and pump with electromagnetic radiation operated interlock |
| 01/27/2011 | WO2011011440A2 Method of controlling gaseous fluid pump |
| 01/27/2011 | WO2011011221A2 Suction cutoff unloader valve for compressor capacity control |
| 01/27/2011 | WO2011011033A1 Demand flow pumping |
| 01/27/2011 | WO2011009880A1 Method for controlling delivery quantity and reciprocating compressor having delivery quantity control |
| 01/27/2011 | WO2011009879A1 Method for controlling delivery quantity, and reciprocating compressor having delivery quantity control |
| 01/27/2011 | WO2010144596A3 Compressor freeze up prevention in cold weather |
| 01/27/2011 | US20110020161 Displacement Type Compressor Having a Self-Start Synchronous Motor and Start Load Reducing Means |
| 01/27/2011 | US20110020148 Multi-stage rotary compressor |
| 01/27/2011 | US20110020146 Rotation drive controlling system for construction machine |
| 01/27/2011 | US20110020138 Clutch Control System and Method for Operating a Clutch Control System |
| 01/27/2011 | US20110017308 apparatus, a control circuit and a method for producing pressure and volume flow |
| 01/27/2011 | CA2768736A1 Demand flow pumping |
| 01/26/2011 | EP2276931A2 Sprayer pressure relief valve |
| 01/26/2011 | EP2276930A1 An apparatus, a control circuit and a method for producing pressure and volume flow |
| 01/26/2011 | CN201723431U Multifunctional water pump control valve with position display |
| 01/26/2011 | CN201723430U Freeze-drying cooling water pump fault automatic alarm system |
| 01/26/2011 | CN201723429U Drainage alarm device for ironmaking clean water pump room |
| 01/26/2011 | CN201723428U Compressor |
| 01/26/2011 | CN201723427U Pressure regulator |
| 01/26/2011 | CN201723426U Mine emulsion pump pressure control device |
| 01/26/2011 | CN201723425U Intelligent control circuit of liquid sampling pump |
| 01/26/2011 | CN201723424U Dedicated power-saving device for air compressor |
| 01/26/2011 | CN201723399U Vacuum pump check valve used for automobile brake |
| 01/26/2011 | CN201723395U Hydraulic dual high fluid pump |
| 01/26/2011 | CN201722548U Automatic blower device circuit of cutting machine |
| 01/26/2011 | CN101959729A Compressor system, and method for the operation of a compressor system |
| 01/26/2011 | CN101956697A Energy-saving gas pressure stabilizer |
| 01/26/2011 | CN101956696A Compressor |
| 01/26/2011 | CN101956695A Vertical variable capacity pump station |
| 01/26/2011 | CN101956690A Cryopump and method for monitoring cryopump |
| 01/26/2011 | CN101586551B Self-powered air relief device |
| 01/26/2011 | CN101506485B A cooling system and a transmission system having said cooling system integrated therewith |
| 01/25/2011 | US7877186 Method and system for identifying a malfunctioning compressed air consumer circuit in a vehicle electronic compressed air system |
| 01/25/2011 | US7874810 Constant pressure pressurizing water pump |
| 01/25/2011 | US7874809 Water-lifting pump apparatus and method for controlling operation thereof |
| 01/25/2011 | US7874808 Variable speed pumping system and method |
| 01/25/2011 | US7874309 Compressor |
| 01/20/2011 | WO2011007914A1 Reciprocating compressor |
| 01/20/2011 | WO2011007306A2 Pump with rotor position measurement system |
| 01/20/2011 | US20110014071 Protector for electrical submersible pumps |
| 01/20/2011 | US20110014062 Control device of hydraulically driven fan |
| 01/19/2011 | EP2275678A1 Pump with rotor position measurement system |
| 01/19/2011 | EP2274518A2 Sensor arrangement |
| 01/19/2011 | EP2131970B1 High-pressure cleaning device |
| 01/19/2011 | EP1398512B1 Hydraulic driving unit for working machine, and method of hydraulic drive |
| 01/19/2011 | CN201714649U Water purifier pump head with overall pressure regulating valve core |
| 01/19/2011 | CN201714648U Controller of constant pressure variable piston pump |
| 01/19/2011 | CN201714647U Device for measuring and controlling liquid level of liquid barrel of liquid pump |
| 01/19/2011 | CN201714646U Variable frequency hydraulic pump station |
| 01/19/2011 | CN201714645U Pump with double level sensors |
| 01/19/2011 | CN201714622U Automatic gas injection pump for double lumen tube saccule |
| 01/19/2011 | CN201714348U Brake protecting device of oil pumping unit |
| 01/19/2011 | CN101952593A System and method of controlling a linear compressor |
| 01/19/2011 | CN101952592A Capacitive liquid level sensor |
| 01/19/2011 | CN101949381A Method for controlling pump transitions in a multi-mode hybrid transmission |
| 01/19/2011 | CN101949376A Multi-cylinder speed adjusting plunger type mortar pump |
| 01/19/2011 | CN101523129B Refrigerant system and method for operating refrigerant system |
| 01/19/2011 | CN101473138B Fluid pressure drive device |
| 01/19/2011 | CN101372942B Axial plunger type variable capacity pump |
| 01/18/2011 | US7870900 System and method for controlling a progressing cavity well pump |
| 01/13/2011 | WO2011005367A2 Bypass unloader valve for compressor capacity control |
| 01/13/2011 | WO2011003789A1 A pump unit |
| 01/13/2011 | WO2010107801A3 Induction motor torque control in a pumping system |
| 01/13/2011 | WO2010094606A3 Device and method for conveying a liquid for medical purposes |
| 01/13/2011 | US20110008188 Pneumatically Operated Reciprocating Pump |
| 01/13/2011 | US20110008187 Controller and the Use Thereof |
| 01/13/2011 | US20110008182 Pressure exchanger for transmitting pressure energy from a first liquid stream to a second liquid stream |
| 01/13/2011 | US20110008181 Fixed and variable compressor system capacity control |
| 01/13/2011 | US20110008180 Downhole pumps with sand snare |
| 01/13/2011 | US20110008179 Pressure control |
| 01/13/2011 | US20110005474 Engine Cooling System for a Vehicle |
| 01/12/2011 | EP2273125A2 Variable speed pumping system and method |
| 01/12/2011 | EP2273117A1 Process for detecting scale formation in a beverage preparation machine |
| 01/12/2011 | EP2273116A2 System and method for motor drive control pad and drive terminals |
| 01/12/2011 | EP2273114A1 Reciprocating pump with electronically monitored air valve and piston |
| 01/12/2011 | EP2272556A1 Compressor for an aerosol therapy device |
| 01/12/2011 | EP2272552A1 Liquid conveying pump |
| 01/12/2011 | EP1783410B1 Solenoid-controlled valve |
| 01/12/2011 | CN201706026U Simple unloading and pressure regulating valve |
| 01/12/2011 | CN201705645U Automatic circulation intelligent controller of non-pressure heating boiler hot water pump |
| 01/12/2011 | CN201705644U Integrated intelligent water pump control system |
| 01/12/2011 | CN201705643U Drainage water pump controlling device based on fuzzy control |