| 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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| 01/12/2011 | CN201705642U Electronic pressure controller for water supply system with water pump |
| 01/12/2011 | CN201705641U Electronic control compressor piston stroke change mechanism |
| 01/12/2011 | CN201705640U High-power program control DC electric pump |
| 01/12/2011 | CN201705639U Crush pump system with Ethernet interface |
| 01/12/2011 | CN201705638U Fire fighting pump constant-pressure speed regulating control device for fire fighting truck |
| 01/12/2011 | CN201705637U Quantitative delivery device of small-flow corrosive liquid |
| 01/12/2011 | CN201705633U Anti-reverse double-function electric submersible screw pump |
| 01/12/2011 | CN201705516U Oil pump oil level control device |
| 01/12/2011 | CN101943160A Heating power supply control device of air compressor |
| 01/12/2011 | CN101943158A Oil-water separating method and device of air compressor condensate liquid |
| 01/12/2011 | CN101943154A Cover frame type air compressor unit |
| 01/12/2011 | CN101943151A Reciprocating pump with electronically monitored air valve and piston |
| 01/12/2011 | CN101943149A Portable pneumatic drive oil injection device |
| 01/12/2011 | CN101403395B Pressure-regulating device of high-pressure water pump |
| 01/11/2011 | US7869978 Determination and control of wellbore fluid level, output flow, and desired pump operating speed, using a control system for a centrifugal pump disposed within the wellbore |
| 01/11/2011 | US7866953 Fluid pump |
| 01/06/2011 | WO2010099426A3 Level sensor system |
| 01/06/2011 | US20110002795 System to Measure Vibrations Using Fiber Optic Sensors |
| 01/06/2011 | US20110002794 Centrifugal pump and method for compensating the axial thrust in a centrifugal pump |
| 01/06/2011 | US20110002793 Reciprocating pump with electronically monitored air valve and piston |
| 01/06/2011 | US20110002792 Controller for a motor and a method of controlling the motor |
| 01/06/2011 | US20110002791 Pump System for Removing Water from Pool Covers and Sumps |
| 01/05/2011 | EP2269725A1 Micropump device |
| 01/05/2011 | EP2269670A1 Centrifugal fluid pump assembly |
| 01/05/2011 | EP2268922A1 Ultra high pressure pump with an alternating rotation to linear displacement drive mechanism |
| 01/05/2011 | EP2268516A1 Pressure generator of a hydraulic vehicle brake system and operating method for this |
| 01/05/2011 | CN201696279U Metering pump for eccentric stroke regulating mechanism |
| 01/05/2011 | CN201696278U Condensate water detector with automatic extraction/stopping control |
| 01/05/2011 | CN201696277U Pressure switch for controlling automatic opening and closing of pipeline pressure boosting pump |
| 01/05/2011 | CN201696276U Frequency conversion control system for constant-temperature air supply of air compressor |
| 01/05/2011 | CN201696275U Air compressor |
| 01/05/2011 | CN201696274U Stepless working condition adjusting mechanism for inlet pressure of CNG main station compressor |
| 01/05/2011 | CN201696273U Automatic control device for vehicular air pump |
| 01/05/2011 | CN101936286A Variable compressor control valve |
| 01/05/2011 | CN101936285A Cooling frequency-conversion control system of compressor |
| 01/04/2011 | US7862306 Pressure regulating variable displacement vane pump |
| 01/04/2011 | US7862305 Variable displacement vane pump |
| 01/04/2011 | CA2427032C Oil pressure operated pump for marine steering gears |
| 12/30/2010 | US20100332036 Method, System and Computer Program Product for Monitoring and Optimizing Fluid Extraction from Geologic Strata |
| 12/30/2010 | US20100329898 Compressor inlet guide vane control |
| 12/30/2010 | US20100329894 System and method for control of devices internal to a hermetic compressor |
| 12/30/2010 | US20100329893 External Oil Expansion Chamber for Seabed Boosting ESP Equipment |
| 12/30/2010 | US20100329889 Switch and float assembly for a pump |
| 12/30/2010 | DE102009025153A1 Pumpen und Armaturen mit Sensoren Pumps and valves with sensors |
| 12/30/2010 | CA2708798A1 Switch and float assembly for a pump |
| 12/29/2010 | CN201689404U Multi-stage dry vacuum pump touch screen controller |
| 12/29/2010 | CN201687698U Multilevel dry type vacuum pump man-machine operation device |
| 12/29/2010 | CN201687697U Start-up control device of flood control and water drainage pump station |
| 12/29/2010 | CN201687696U Sleep function controller of variable-frequency control cabinet |
| 12/29/2010 | CN201687695U Air pump constant-pressure control device |
| 12/29/2010 | CN201687694U Pump station integrated control system of coal mining combine work surface for coal mine |
| 12/29/2010 | CN201687693U Vehicle-used firefighting pump control device with functions of feedback and pressure regulation |
| 12/29/2010 | CN201687682U Improved automatic inflating air pump |
| 12/29/2010 | CN101932836A Apparatus and method for controlling operation of compressor |
| 12/29/2010 | CN101932832A Method of operating a fluid working machine |
| 12/29/2010 | CN101929456A Safety control circuit for press machine |
| 12/29/2010 | CN101929455A Electric air pump control method and system for vehicle |
| 12/29/2010 | CN101929454A Novel air compressor safety control circuit |
| 12/29/2010 | CN101929451A Automatic inflating device, air cushion bed and automatic inflating method |
| 12/29/2010 | CN101334013B Electro-hydraulic switch torque-changing oil-dispensing type rotating cylinder barrel type quantitative plunger piston hydraulic motor |
| 12/29/2010 | CN101313155B Pump torque controller of hydraulic working machine |
| 12/28/2010 | USRE42006 Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 12/28/2010 | US7857600 Pump controller system and method |
| 12/23/2010 | US20100324465 Apparatus for controlling blood flow in an extracorporeal blood circuit |
| 12/23/2010 | US20100322791 Hydraulic system with supplement pump |
| 12/23/2010 | US20100322787 Electronic clutch for a water pump |
| 12/23/2010 | US20100322786 Pressure control unit |
| 12/23/2010 | US20100322785 Compressor Unit |
| 12/23/2010 | US20100320110 Portable garden |
| 12/23/2010 | US20100320019 System and method to provide lubrication for a plug-in hybrid |
| 12/23/2010 | US20100319911 System, Method and Apparatus for Downhole Orientation Probe Sensor |
| 12/23/2010 | US20100319786 Flow cytometer system with unclogging feature |
| 12/23/2010 | DE102009025707A1 Device for controlling plant, has control unit determining reference value for rotational speed of electric motor, where pressure values and/or volumetric flow values for supply of hydraulic circuits are compared with rotational speeds |
| 12/22/2010 | EP2264887A1 Motor controller, air compressor, air conditioner, controller of passenger conveyor and controller of conveyor |
| 12/22/2010 | CN201679704U Air charging/discharging control device |
| 12/22/2010 | CN201679703U Control device for service water pump and standby water pump |
| 12/22/2010 | CN201679702U Oil pumping self-stopping device |
| 12/22/2010 | CN201679701U Pressure regulator of electric air pump |
| 12/22/2010 | CN201679677U Electric air pump |
| 12/22/2010 | CN201678856U Controllable double-head water discharge pump for washing machine |
| 12/22/2010 | CN1821578B Compressor diagnostic system |
| 12/22/2010 | CN101925706A Water supply |
| 12/22/2010 | CN101925511A Speed control apparatus for cooling sea-water transfer pump |
| 12/22/2010 | CN101922445A Constant power control valve |
| 12/22/2010 | CN101922444A Explosion-proof wiring device for compressor head of cooling unit in mine |
| 12/22/2010 | CN101922443A Control method of variable frequency lift pump based on liquid level adjustment |
| 12/22/2010 | CN101922432A Ship and outdoor type energy-saving air compressor |
| 12/22/2010 | CN101922429A Concrete pump truck and control method thereof as well as pumping system and distribution mechanism thereof |
| 12/22/2010 | CN101368552B Heeling moment full-balancing shaft distribution mechanism and bidirectional variable radial ball piston pump |
| 12/22/2010 | CN101344082B Sealed compressor and freezing circulating device having the sealed compressor |
| 12/22/2010 | CN101103201B Control and protection system for a variable capacity compressor |
| 12/22/2010 | CN101084376B Prevention of unpowered reverse rotation in compressors |
| 12/21/2010 | US7854597 Pumping system with two way communication |
| 12/21/2010 | US7854596 System and method of operation of multiple screw compressors with continuously variable speed to provide noise cancellation |
| 12/17/2010 | CA2707376A1 Device and method for gas lock detection in an electrical submersible pump assembly |
| 12/16/2010 | WO2010143469A1 Double reciprocation pump |
| 12/16/2010 | WO2010112779A3 Device for use in a fluid exploitation well, exploitation equipment, and associated method |
| 12/16/2010 | US20100316506 Engine fuel pump drive system |
| 12/16/2010 | US20100316505 Compressor Freeze Up Prevention in Cold Weather |
| 12/16/2010 | US20100313849 Fault Detection and Mitigation in Hybrid Drive System |