Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04B - Positive-displacement machines for liquids; Pumps › F04B 49 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups
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)
05/2012
05/22/2012US8182238 Variable displacement transmission pump control
05/22/2012US8181473 Refrigeration cycle device, and air conditioner for vehicle
05/22/2012US8181457 Fuel efficient hydraulic power steering
05/18/2012WO2012065160A2 Sensor system
05/18/2012WO2012062956A1 Control of the electric motors of a pump unit of a fire protection system
05/17/2012US20120122004 Method for controlling temperature of fuel cell system
05/17/2012US20120121443 Air compressor having enlarged compartment for receiving pressurized air
05/17/2012US20120121441 Low restriction resonator with adjustable frequency characteristics for use in compressor nebulizer systems
05/17/2012US20120121439 Hydraulic power module
05/17/2012US20120121438 Speed control of an electrically-actuated fluid pump
05/16/2012EP2452073A2 Bypass unloader valve for compressor capacity control
05/16/2012EP2304234B1 Linear compressor
05/16/2012CN202220724U Sealing structure of control valve of water pump
05/16/2012CN202220723U Air compressor safety device
05/16/2012CN202220722U Burnout prevention device of liquid adding pump
05/16/2012CN202220721U Double-cavity submersible electric pump protector with secondary seal, capsule chamber and serial-connection settling chamber
05/16/2012CN102454587A Motor-driven compressor and controller therefor
05/16/2012CN102454586A Control box of condensate pump
05/16/2012CN102454585A Fire pump long-distance automatic control system based on wireless communication manner
05/16/2012CN102454575A Air pressure generator
05/16/2012CN101228353B Device for driving an electromagnetic pump and related electromagnetic dosing pump
05/16/2012CN101210546B Pump control for formation testing
05/15/2012US8180593 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
05/15/2012US8177522 Mode changing apparatus for a scroll compressor
05/15/2012US8177520 Controller for a motor and a method of controlling the motor
05/15/2012US8177519 Controller for a motor and a method of controlling the motor
05/10/2012WO2012060560A2 Automatic drain system to be employed in compressed air tank for pneumatic device
05/10/2012WO2012059761A1 Refill recognition system for spray head and circuit for detecting a change light intensity
05/10/2012WO2012059679A1 Pumping installation for obtaining a high vacuum and pumping method using such an installation
05/10/2012WO2012059427A1 Gas compression system
05/10/2012WO2012028362A3 Arrangement for throttling a fluid flow, and corresponding piston pump for delivering fluids
05/10/2012DE112005001075B9 Drehmomentgesteuerte Pumpenschutzeinrichtung mit mechanischer Verlustkompensierung Torque-controlled pump protection device with a mechanical Verlustkompensierung
05/09/2012EP2450574A1 Fluid pump
05/09/2012CN202215467U Automatic regulation type air compressor system
05/09/2012CN202215466U Protection system for hydraulic oil pump
05/09/2012CN202215465U Mining explosion-proof double-circuit level controller for water pump
05/09/2012CN202215464U Circuit device for controlling heat conduction oil circulating pump
05/09/2012CN202215463U Pump station and circulation system
05/09/2012CN202215462U Frequency conversion control energy-saving cabinet system of air compressor
05/09/2012CN202211576U Control system of vehicle-mounted coffee maker
05/09/2012CN1938518B Method for correcting tilt control signal, tilt controller, construction machine
05/09/2012CN1755110B Water supply device
05/09/2012CN102449308A Operating device and method for hydraulic pumps in hydraulic systems
05/09/2012CN102449307A Device for use in a fluid exploitation well, exploitation equipment, and associated method
05/09/2012CN102444570A Method for controlling the discharge pump of a household appliance and processing unit for implementing said method
05/09/2012CN102444569A Automatic control device and method for pump
05/09/2012CN102444568A Water pump with adjustable controller
05/09/2012CN102444567A Water pump with non-contact type sensor
05/09/2012CN101668949B Pump system
05/08/2012US8175787 Electrical fuel transfer pump diagnostic
05/08/2012US8172800 Device and method employing shape memory alloy
05/08/2012US8172553 Small sized heat dissipating fan with outward arrangement of a speed adjuster resistor having a resistance of zero ohms
05/08/2012US8172551 Variable actuation pressure system for independent pressure control
05/08/2012US8172545 Method for controlling ground meat flow rates
05/08/2012US8172544 Operation control device for vacuum pump and method for stopping operation thereof
05/03/2012WO2012005498A3 Apparatus and method for controlling a compressor, and refrigerator comprising same
05/03/2012WO2012005497A3 Device and method for controlling compressor, and refrigerator including same
05/03/2012US20120107159 Bypass Unloader Valve For Compressor Capacity Control
05/03/2012US20120107146 Pumping Device Having A Pressure Adjustable Function
05/03/2012US20120107145 Fan drive system with sensor feedback
05/03/2012US20120107144 Variable bore convertible compressor cylinder
05/03/2012US20120107143 Method and system for cooling a motor-compressor with a closed-loop cooling circuit
05/03/2012US20120107141 Motor-driven compressor and controller therefor
05/03/2012US20120107140 Method of Operating a Safety Vacuum Release System
05/03/2012US20120107139 Electronic device and cooling fan control method
05/03/2012US20120107138 Method to operate an electronically controlled air compressor powered by an internal combustion engine
05/03/2012US20120107137 Portable steel-reinforced hdpe pump station
05/03/2012US20120103447 Relief valve for oil pump
05/03/2012US20120103280 Variable flow heating system with heating accessories placed in series
05/03/2012DE102005057102B4 Vorrichtung und Verfahren zum Steuern des Betriebs eines Hubkolbenkompressors Apparatus and method for controlling the operation of a reciprocating compressor
05/02/2012EP2447535A2 Motor-driven compressor and controller therefor
05/02/2012EP1834096B1 A vehicle including compressed air consuming devices and a method of operating the same
05/02/2012EP1666734B1 Engine lag down suppressing device of construction machinery
05/02/2012EP1149235B1 Control valve
05/02/2012CN202209376U Self-tightening rope
05/02/2012CN202209271U Novel infrared pump liquid apparatus
05/02/2012CN102439309A Determining fluid compressibility while delivering fluid
05/02/2012CN102439307A Return to neutral mechanism for hydraulic pump
05/02/2012CN102435028A 压缩机数据模块 Compressor Data Module
05/02/2012CN102434444A Industrial air compressor controller capable of automatically transforming with multiple protocols
05/02/2012CN102434443A Control device, control method and concrete pump for viscous body pumping mechanism
05/02/2012CN102434442A Control module of automobile air conditioning compressor and control method of control module
05/02/2012CN102434441A Explosion-prevention constant pressure liquid supply device of emulsion pump station
05/02/2012CN102434440A Controller of energy-saving water supply unit
05/02/2012CN102434439A Moving direction converter of air-free pump
05/02/2012CN102434127A Pulsating reciprocating type hydraulic pumping unit
05/02/2012CN101798999B Variable stroke plunger pump and starting method thereof
05/02/2012CN101629566B Combination pressure switch
05/01/2012US8170762 Method and apparatus to control operation of a hydraulic pump for an electro-mechanical transmission
05/01/2012US8167593 System and method for pump with deformable bearing surface
05/01/2012US8167581 Device for delivering a liquid, the device comprising a pump and a valve
05/01/2012US8167578 Switch and float assembly for a pump
04/2012
04/29/2012CA2756459A1 Variable bore convertible compressor cylinder
04/26/2012WO2012010137A3 Hydraulic dual axial piston machine
04/26/2012WO2011134455A3 Method and system for carrying out closed-loop or open-loop control of the water pressure in a pressure zone and device for carrying out and for operating same
04/26/2012US20120100014 Submersible pump system
04/26/2012US20120100013 Method of surge protection for a dynamic compressor using a surge parameter
04/26/2012US20120100012 Method for controlling electric compressor
04/26/2012US20120100011 Control system
04/26/2012US20120100010 Speed Control
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