Patents for F04D 27 - Control, e.g. regulation, of pumps, pumping nstallations or pumping systems specially adapted for elastic fluids (9,590) |
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01/16/2013 | CN102878098A Environmental-friendly control system of dust removal fan of steel mill |
01/16/2013 | CN102878097A Control system of dust removal fan of steel mill |
01/16/2013 | CN102878096A Automatic following control circuit for fan |
01/16/2013 | CN102878095A Alarm circuit for failure of fan |
01/16/2013 | CN101789751B Speed regulation circuit for fan |
01/15/2013 | US8353676 Method for determining faults during the operation of a pump unit |
01/10/2013 | WO2013005129A2 Antisurge protection method for centrifugal compressors |
01/10/2013 | US20130008246 Hydraulic accumulator fluid charge estimation system and method |
01/09/2013 | EP2543888A1 Method for controlling an electric motor arranged to drive a turbine of an electric fan |
01/09/2013 | EP2543887A2 Integral scroll and gearbox for a compressor with speed change option |
01/09/2013 | EP2543886A2 Integral scroll and gearbox for a compressor with speed change option |
01/09/2013 | CN202659594U Centrifugal fan sound proof box device with power supply inspection switch |
01/09/2013 | CN202659542U Automatically-controlled ventilator |
01/09/2013 | CN202659541U Tail stage impeller anti-block adjusting device used for axial flow compressor |
01/09/2013 | CN202659540U Indoor modularized fan for air conditioner |
01/09/2013 | CN202659539U Outdoor modularized fan for air conditioner |
01/09/2013 | CN202659538U Intelligent control system of oven draught fan |
01/09/2013 | CN202659537U LED (light-emitting diode) lamp with cooling fan |
01/09/2013 | CN202659536U Adjusting check tool for impeller clearance of fan |
01/09/2013 | CN202659535U Explosive-proof centralized control device for automatic machine transfer of pairing-rotation double-fan double-power photoelectric butt joint |
01/09/2013 | CN102865241A Fan operational monitoring method based on fan operation current detection |
01/09/2013 | CN102865240A Intelligent mobile tower fan and control method thereof |
01/09/2013 | CN102865234A Supersonic compressor |
01/09/2013 | CN102865093A Mine ventilation automatic detection and operation system |
01/09/2013 | CN102165273B Turbo refrigeration machine and method for controlling the same |
01/08/2013 | CA2683340C Fluid control system with autonomously controlled pump |
01/03/2013 | US20130004299 Heating and ventilation fan for bathroom |
01/02/2013 | EP2541067A2 Surge estimator |
01/02/2013 | CN202646111U Ceiling fan with remote control technology |
01/02/2013 | CN202646110U Induction type fan |
01/02/2013 | CN202646109U Fan head swinging adjusting device |
01/02/2013 | CN202646108U Fan wind speed regulating device |
01/02/2013 | CN202646107U Electric fan capable of being automatically turned on and turned off |
01/02/2013 | CN202646106U Control circuit of AC (Alternating Current) blower |
01/02/2013 | CN202646105U Performance detection device of alternate current and direct current fans |
01/02/2013 | CN202646104U Control circuit of automobile cooling fan |
01/02/2013 | CN202646103U Fan capable of being automatically powered on and off |
01/02/2013 | CN202646102U Multipoint frequency converting control system for smoke exhaust fans |
01/02/2013 | CN202646101U Frequency conversion device for controlling rotation speed of oasthouse fan |
01/02/2013 | CN202646100U Emergency exhaust fan |
01/02/2013 | CN202646099U Air conditioning fan control system of natural gas bus |
01/02/2013 | CN202646082U Multifunctional floor fan |
01/02/2013 | CN202646065U Fan with angles capable of being adjusted from multiple directions |
01/02/2013 | CN202646063U 360-degree wind source desk fan |
01/02/2013 | CN202646061U Transformative doll fan |
01/02/2013 | CN202646036U Intelligent silent tubular pressurization system |
01/02/2013 | CN202646032U High-power submersible electric pump with insulating and stabilizing functions |
01/02/2013 | CN102852858A Silent fan without exposed vane |
01/02/2013 | CN102852845A Method and device for regulating speed of fan |
01/02/2013 | CN102852844A Electric fan |
01/02/2013 | CN102852843A Temperature-controlled speed-regulating circuit for direct-current fan |
01/02/2013 | CN102852842A Chassis fan control system based on FPGA (Field Programmable Gate Array) and control method thereof |
01/02/2013 | CN102852841A Control system and method for axial flow fan |
01/02/2013 | CN102852840A Adjustable guide/stationary blade control device and method for axial flow compression system under variable working condition |
01/02/2013 | CN102852837A Human body position sensing electric fan |
01/02/2013 | CN102852835A Electric fan |
01/02/2013 | CN102852834A Mute household fan |
01/02/2013 | CN102852625A Engine transient air-intake control system and control method |
01/01/2013 | US8342794 Stall and surge detection system and method |
01/01/2013 | US8342793 Active surge control |
12/27/2012 | WO2012177582A2 Capacity control system and method for centrifugal compressor |
12/27/2012 | US20120330464 RPM Controller Using Drive Profiles |
12/27/2012 | US20120328458 Compressor apparatus for the turbocharger of a piston engine and method for operating the same |
12/27/2012 | US20120328410 Surge estimator |
12/27/2012 | DE112011100402T5 Hochvakuumpumpe High vacuum pump |
12/26/2012 | CN202634980U Heat dissipation system used for portable communication device |
12/26/2012 | CN202631499U SF6 gas leakage monitoring alarming system |
12/26/2012 | CN202630797U Dispersion system capable of utilizing multiple levels of engines to generate wind power |
12/26/2012 | CN202630496U Air-cooled screw type water chiller unit |
12/26/2012 | CN202628582U Testing device for fan |
12/26/2012 | CN202628581U 智能风扇 Smart Fan |
12/26/2012 | CN202628580U Drying fan control circuit of intelligent toilet |
12/26/2012 | CN202628579U Condensing fan for bus air conditioner |
12/26/2012 | CN202628578U Control device for test in reliability of electronic silicone oil clutch fan |
12/26/2012 | CN202628577U Anti-explosion control system for fan power supply |
12/26/2012 | CN202628576U Frequency-variable adjustment control system for dedusting fan |
12/26/2012 | CN202628575U Variable frequency regulation control system of dust removal fan |
12/26/2012 | CN202628574U Power distribution control device of underground fan |
12/26/2012 | CN202628573U Fan capable of pitching and rotating |
12/26/2012 | CN202628572U Elevator room fan system |
12/26/2012 | CN202628571U Temperature-controlled multi-sectional velocity variable air volume controller |
12/26/2012 | CN202628556U Cation and anion portable fan |
12/26/2012 | CN202628553U Automatic variable frequency energy-saving fan for cooling tower |
12/26/2012 | CN102840182A Low-load vibration control method for axial flow fan of thermal power plant and bypass air duct control loop |
12/26/2012 | CN102840160A Air cooling control device and working method thereof |
12/26/2012 | CN102840159A Negative pressure adjusting device for inlet of compressor with variable diameter |
12/26/2012 | CN102840158A Device temperature regulating method based on power |
12/26/2012 | CN102840157A Mine direct current fan system |
12/26/2012 | CN102840155A Novel ceiling fan |
12/25/2012 | US8337143 Actuator in turbocharger of vehicle and method for controlling the same |
12/25/2012 | US8337139 Method and system for reducing the impact on the performance of a turbomachine operating an extraction system |
12/25/2012 | US8336315 Gas turbine with a compressor housing which is protected against cooling down and method for operating a gas turbine |
12/20/2012 | WO2012172307A1 Evacuating a chamber |
12/20/2012 | US20120321437 Turbine seal system |
12/20/2012 | DE102011077652A1 Verfahren zum Betreiben eines elektrischen Lüftermotors A method for operating an electric fan motor |
12/19/2012 | CN202613678U Voice control air conditioner |
12/19/2012 | CN202612212U Stacking fan of control rod driving device |
12/19/2012 | CN202612169U Intelligent bladeless fan |
12/19/2012 | CN202612168U Control circuit for electric fan intermittent work |
12/19/2012 | CN202612167U Energy-saving speed regulation controller for constant-temperature and constant-humidity air conditioners |