Patents
Patents for F04D 27 - Control, e.g. regulation, of pumps, pumping nstallations or pumping systems specially adapted for elastic fluids (9,590)
06/2013
06/12/2013CN202998764U An intelligent air blowing module
06/12/2013CN202991571U Novel mine fan air pressure and air quantity detector
06/12/2013CN202991570U Novel mine fan data acquisition and detection system
06/12/2013CN202991569U Control circuit for rotating speed and forward and negative rotation of fan
06/12/2013CN202991568U Main mine induced draft fan with air-volume online detection device
06/12/2013CN202991567U Automatic converting and variable-frequency speed regulating device for coal mine partial ventilator
06/12/2013CN202991566U Full-automatic fan test system
06/12/2013CN202991565U Fuzzy control frequency conversion system based on PLC (programmable logic controller)
06/12/2013CN202991564U Automatic-temperature-control electric fan
06/12/2013CN202991563U Fan device controlled by infrared rays
06/12/2013CN202991562U Intelligent fan control system based on single chip microcomputer
06/12/2013CN202991561U Intelligent infrared induction electric fan
06/12/2013CN202991560U Frequency converting control system of air blower
06/12/2013CN202991559U Toggle-adjustive electric fan
06/12/2013CN202991558U Fan energy efficiency test system
06/12/2013CN202991557U Ceiling fan energy efficiency test system based on double-layer isolation
06/12/2013CN202991556U Adjustable type high-power fan control device
06/12/2013CN202991555U Testing fan wall for water cooling cabinets
06/12/2013CN202991538U Bathroom induction exhaust fan
06/12/2013CN202991096U Ventilation control system used for tunnel face
06/12/2013CN103148025A Reducing acoustic tone excitation in computer system
06/12/2013CN103148009A Automatic control system of fan
06/12/2013CN103148008A Temperature control fan
06/12/2013CN103148007A Mine ventilating fan control system capable of automatically adjusting air quantity
06/12/2013CN103148006A Energy-saving fan
06/12/2013CN101539151B Method and device for controlling inverter compressor
06/06/2013WO2013081840A1 Surge prevention during startup of a chiller compressor
06/06/2013WO2013079137A1 Fluid energy machine, in particular for an exhaust-gas turbocharger, with an obliquely arranged, rotatable guide element
06/06/2013WO2012177582A3 Capacity control system and method for centrifugal compressor
06/05/2013EP2600008A1 Turbomachine casing assembly with blade containment cavity
06/05/2013EP2600006A1 Compressor rotating stall detection by spectral analysis of rotor vibrations
06/05/2013EP2599968A1 Method of positioning a control surface to reduce hysteresis
06/05/2013EP2598756A2 Method and system for reducing seal gas consumption and settle-out pressure reduction in high-pressure compression systems
06/05/2013EP2598755A1 Method for operating a compressor
06/05/2013EP2598754A1 Method for controlling a compressor
06/05/2013EP2565465A9 Method and apparatus for determining change in mass of fan impeller
06/05/2013CN202979543U Traction transformer secondary side resistance-capacitance network absorber cooling fan
06/05/2013CN202978542U Double-shaft-extension motor, compressor, and refrigeration apparatus
06/05/2013CN202971280U Swing range adjustable device of electric fan swing head
06/05/2013CN202971266U Regulating device used in fan guide vane control
06/05/2013CN202971265U Data collecting circuit of mine main fan
06/05/2013CN202971264U Start and stop device of automatic temperature control draught fan
06/05/2013CN202971263U Refrigerator and condensate fan speed control system thereof
06/05/2013CN202971262U Fan control system
06/05/2013CN202971261U Adjustable type large power fan controller
06/05/2013CN202971260U Electric fan temperature control circuit
06/05/2013CN202971259U Mine fan control system capable of automatically adjusting air volume
06/05/2013CN202971258U One-key ventilating fan control system
06/05/2013CN202971257U Blower variable frequency and speed regulation controller of FFU (fan filter unit)
06/05/2013CN202971256U Fan capable of intelligently turning
06/05/2013CN202971244U Infrared inductive electric fan
06/05/2013CN202971240U Angle adjustable fan
06/05/2013CN202971236U Direct current series machine cooling fan system
06/05/2013CN202971234U Auxiliary blowing-in device
06/05/2013CN202971231U Power equipment for supplying power to fan
06/05/2013CN202971226U Bathroom induction exhaust fan
06/05/2013CN202971055U Heat radiation and ventilation device for mechanical brake of wind generating unit
06/05/2013CN103140729A Estimation apparatus of heat transfer medium flow rate, heat source machine, and estimation method of heat transfer medium flow rate
06/05/2013CN103140114A Rack system of automatically increasing fan rotating speed
06/05/2013CN103138534A Switching power supply capable of automatically regulating rotating speed of cooling fan
06/05/2013CN103133426A Filter unit of air fan with constant air volume
06/05/2013CN103133387A Energy-saving controller of fan with modular design
06/05/2013CN103133386A Method and equipment for detecting rotating stall and compressor
06/05/2013CN103133385A Fan shape judgment and control method, and fan universal control system
06/05/2013CN103133384A Control system and method thereof
06/05/2013CN103133383A Intelligent electric fan
06/05/2013CN103133382A Method capable of controlling fan rotating speed
06/05/2013CN103133381A Automatic frequency modulation control method of ventilator and device thereof
06/05/2013CN103133371A Fan module
06/05/2013CN103133367A Multifunctional electric fan
06/05/2013CN103133364A 电风扇 Fan
06/05/2013CN103133300A Fan nozzle with outlet control
06/05/2013CN102312847B Integral centrifugal fan driven without position sensor
06/05/2013CN102072184B Fuzzy control method and system for magnetic suspension molecular pump
06/05/2013CN102032208B Self-adaptive control system and method of magnetic suspension molecular pump
06/05/2013CN101506528B Turbocharger systems and methods for operating the same
05/2013
05/30/2013WO2013045540A3 Systems and methods for determining a level of fouling of compressors
05/30/2013US20130136578 Turbocharger housing having a valve device, and method for manufacturing a turbocharger housing of said type
05/30/2013CA2856633A1 A fan assembly
05/29/2013EP2596312A2 Separation of a gas mixture
05/29/2013CN202955011U Timing controller for exhaust fan
05/29/2013CN202955010U Device for controlling fan to work by using infrared human body sensor and singlechip
05/29/2013CN202955009U Draught fan control device
05/29/2013CN202955008U Temperature-controlled axial flow fan
05/29/2013CN202955006U Parallel air feeder in machine room system
05/29/2013CN202955005U Pit-mounted air cooler
05/29/2013CN202955004U Fan unit for rock wool production line
05/29/2013CN103122865A Radiating fan of new energy car battery
05/29/2013CN103122844A Compression apparatus
05/29/2013CN102072185B Dust amount calculation optimal model-based energy-saving control method for dedusting fan
05/29/2013CN102042092B Surge protection method for switching control of air quantity of air compressor of turbocharging system
05/29/2013CN101737345B Small-sized heat radiating fan
05/23/2013US20130129477 Method for operating a compressor
05/23/2013US20130129475 Method for operating a pump
05/22/2013EP2594802A1 Method for detecting the correct rotational direction of a centrifugal apparatus, and a centrifugal apparatus assembly
05/22/2013EP2594765A2 Compressor having a cooling circuit and corresponding cooling method
05/22/2013CN202946426U Speed regulation device of two-direct current electronic fan
05/22/2013CN202946425U Clock synchronization device for fan control system
05/22/2013CN202946424U Mine draught fan mechanical fault diagnosis device based on embedded-type data collection system
05/22/2013CN202946418U 多功能风扇 Multifunction fan
1 ... 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 ... 96