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Matches 501 - 550 out of 7,538

Document Document Title
WO/2013/082934A1
An air conditioner, the running control method and device for indoor fan thereof are provided. The method comprises the following steps: receiving the user command, setting the wind level of the air conditioner in different period accord...  
WO/2013/083000A1
Disclosed is a method of dynamic balance for a magnetic levitation molecular pump involving starting a force-unrestrained imbalance vibration control module after actuating the magnetic levitation molecular pump motor (8). If under the c...  
WO/2013/082998A1
A method for synchronously suppressing the subcritical vibration of a magnetic suspension molecular pump rotor. The amplitude, frequency and phase of rotor subcritical vibration is obtained by synchronously sampling a rotor subcritical v...  
WO/2013/082999A1
Disclosed is a method of dynamic balance for a magnetic levitation molecular pump involving starting a force controlled imbalance vibration control module after actuating a magnetic levitation molecular pump electric motor (8). If under ...  
WO/2013/079137A1
The invention relates to a fluid energy machine, in particular for an exhaust-gas turbocharger of a motor vehicle, having a housing which has a receiving chamber (16) for receiving a rotor (18) which can be rotated relative to the housin...  
WO/2013/081840A1
There is a method for controlling a centrifugal compressor (22) having an inlet (24), an outlet (26), an impeller (54) mounted for rotation about an impeller axis (502), a motor (52) coupled to the impeller to drive the impeller about th...  
WO/2012/177582A3
A system and method for controlling compressor capacity while maintaining compressor stability includes providing a compressor (108) and a flow reduction device (FRD) for controlling flow of refrigerant through the compressor; measuring ...  
WO/2013/045540A3
A system and method is provided determining a degree of fouling formation in a compressor, e.g., in an ethylene production unit or other application. Data associated with the operation of the compressor is collected (100). Based on the c...  
WO/2012/163715A3
The present invention relates to a system for gathering a gas from a gas field (170). The system comprises a high pressure compressor (100) which comprises a gas input (101) and a gas output (102). The gas input (101) is coupleable to th...  
WO/2013/009646A3
A vortex generator (100), or an array of vortex generators, for attenuating flow separation during flow of fluid over a surface (201). Vortex generators include a base (200) with a forward end (202) and a leading edge (204) extending out...  
WO/2013/058071A1
Provided is a ventilator device (1), comprising an air path (8) and a blower fan (17) which is positioned within the air path (8), and which is maintained at a prescribed set RPM by varying the duty ratio of drive voltage by PWM control,...  
WO/2013/059764A1
The present invention is directed to a direct-drive fan system and a variable process control system for efficiently managing the operation of fans in a cooling system such as a wet- cooling tower or air-cooled heat exchanger (ACHE), HVA...  
WO/2010/066662A3
The present invention provides method of operating a compressor (100), for the reduction of relief load during a blocked outlet event, and an apparatus therefore, the method comprising at least the steps of: (a) passing one or more compr...  
WO/2013/051559A1
Provided are a centrifugal compressor (12) for centrifugally compressing a gas (1), an electric motor (14) for rotatably driving the centrifugal compressor, a current detector (16) for detecting a drive current (I) of the electric motor,...  
WO/2013/050688A1
The aim of the invention is to take an accurate measurement of the erosion of compressors, without removal of the engine, and to provide for simple installation. For this purpose, it has been observed that erosion takes place in the elbo...  
WO/2013/045540A2
A system and method is provided determining a degree of fouling formation in a compressor, e.g., in an ethylene production unit or other application. Data associated with the operation of the compressor is collected (100). Based on the c...  
WO/2013/009644A3
A supersonic compressor including a rotor having reaction blades that deliver a gas at supersonic conditions to a diffuser. The diffuser includes a plurality of aerodynamic ducts that have converging and diverging portions, for decelerat...  
WO/2013/045052A2
The invention relates to an electric turbocharger (13) for supplying air to a fuel cell (3), having a turbine (16), a compressor (12) and an electric machine (17) which all have a drive connection with one another, having a compressor-si...  
WO/2013/009643A3
A supersonic compressor including a rotor to deliver a gas at supersonic conditions to a diffuser. The diffuser includes a plurality of aerodynamic ducts that have converging and diverging portions, for deceleration of gas to subsonic co...  
WO/2013/037104A1
Disclosed is a stability control method for pumping trucks. The method includes obtaining a natural frequency of the pumping truck; and changing the displacement of a piston in a pumping oil cylinder of the pump truck so as to make the p...  
WO/2013/009642A3
A stator. The stator may be used in a supersonic compressor that utilizes a rotor to deliver a gas at supersonic conditions to the stator. The stator includes a plurality of aerodynamic ducts that have converging and diverging portions, ...  
WO/2013/009639A3
A supersonic compressor including a rotor to deliver a gas at supersonic conditions to a diffuser. The diffuser includes a plurality of aerodynamic ducts that have converging and diverging portions, for deceleration of gas to subsonic co...  
WO/2013/033502A1
A variable speed drive (VSD) can be used to vary the voltage-to-frequency ratio (V/f) supplied to a compressor motor of a heating, ventilation, air conditioning or refrigeration (HVAC&R) system to make the motor stronger or weaker to com...  
WO/2013/029432A1
A method for heat dissipating comprises: in each isolated physical partition isolated by inserting a board, a pallet or a dummy panel, etc. directly to a back board at a slot position, the temperature of key nodes in the physical partiti...  
WO/2013/020689A1
The invention relates to a fan. Said fan has a drive motor with a fan rotor, an apparatus for generating a rotation-speed signal (n i) which characterizes the rotation speed of the fan rotor, an apparatus for generating a power signal (P...  
WO/2013/015885A1
A compressor (22) has a housing assembly (50) with a suction port (24) and a discharge port (26). A shaft (70) is mounted for rotation about an axis (500) and an impeller (44) is mounted to the shaft to be driven in at least a first cond...  
WO/2013/005129A2
Method for individuating the pumping conditions of the centrifugal blowers according to thermo-dynamic conditions (pressure and temperature) and to the gas composition in inlet, comprising the steps of: acquisition of the suction pressur...  
WO/2012/177582A2
A system and method for controlling compressor capacity while maintaining compressor stability includes providing a compressor and a flow reduction device for controlling flow of refrigerant through the compressor; measuring suction pres...  
WO/2012/172307A1
A method and apparatus for reducing undesirable noise generated by a vacuum pumping system is disclosed. The vacuum system operates to reduce the pressure in chamber to a first pressure value. The system then detects that the pressure at...  
WO/2012/163612A1
Discrete bleed behind stator vane platform The present invention relates to a system (100) for bleeding off a working fluid from an inner volume (Vi) of a turbo- machine. The system (100) comprises a vane carrier (104) with an annular ra...  
WO/2012/163715A2
The present invention relates to a system for gathering a gas from a gas field (170). The system comprises a high pressure compressor (100) which comprises a gas input (101) and a gas output (102). The gas input (101) is coupleable to th...  
WO/2012/163610A1
The invention relates to a system for conducting natural gas out of a natural gas field. A first gas inlet (111) of a first compressor (110) can be coupled to a first gas source (113) of the natural gas field such that a first natural ga...  
WO/2012/162016A1
A wear indication system (10) for use in turbine engines to measure the rate of gap closure between a seal holder (12) and a rotor disk in a compressor blade assembly (16) includes a support system capable of supporting a wear indicator ...  
WO/2012/156640A1
The invention seeks effectively to combat boundary layer separation in a gas turbine compressor diffuser. To do this, the invention plans to reenergize the boundary layer using air at a higher pressure by a special form of intake/reinjec...  
WO/2012/121680A3
The subject of the invention is a device for an automatic regulation of pump operation of a sensor microprocessor controller that optimally regulates the operation of a pump. The device of the invention solves the mentioned problems; by ...  
WO/2012/139525A1
The present invention provides an LED fan, comprising a base, a motor, and fan blades. The fan blades comprise a cylindrical wheel hub and multiple blades extending outwards from the side surface of the cylindrical wheel hub. A light-emi...  
WO/2011/130807A8
Method for controlling a compressor that contains a compressor element, characterised in that during a transition from full load or partial load to zero load, a process A is followed that comprises the following steps:- the reduction of ...  
WO/2012/132062A1
Disclosed is a method for operating a gas compressor which compresses a gas fuel, a supply condition of which fluctuates, and is provided with a suction flow rate adjustment mechanism, wherein the limit pressure ratio that defines the op...  
WO/2012/132612A1
The purpose of the present invention is to calculate the flow rate of a hot medium without using a flow meter. A controller (30) is provided with a memory (36) storing an aerodynamic characteristics map that shows a rotating stall line c...  
WO/2012/121680A2
The subject of the invention is a device for an automatic regulation of pump operation of a sensor microprocessor controller that optimally regulates the operation of a pump. The device of the invention solves the mentioned problems; by ...  
WO/2012/119753A1
Conventional turbo compressors for internal combustion engines are driven by a mechanical connection. Compression of the intake air takes place downstream of the air filter. The solution according to the invention relates to an axial unt...  
WO/2012/120220A1
The invention relates to a method for eliminating rotating stall in the compressor of a turbomachine, characterized in that said method comprises the following steps: - a step (103) of automatically detecting a surge in the turbomachine;...  
WO/2012/089316A3
A liquid-air cooling system (1) has at least one fan device (2) that consists of at least one variable-speed fan motor (3) driving a fan impeller (4) to create a cooling power for a fluid (5) in a fluid cycle (6). In order to regulate th...  
WO/2012/111158A1
A fan control apparatus (1A) is provided with: a PWM generating circuit (6A), which generates discretionary signals for controlling rotation of fans (31, 32) that cool an MXM card (2); a PWM switching circuit (7A), which is disposed betw...  
WO/2012/104366A1
The invention relates to a device for adjusting the angle of vanes of an outlet vane device of a compressor and to a method for assembling such a device. The device comprises multiple angularly adjustable vanes (11), each of which is mou...  
WO/2012/101380A1
The invention relates to a turbine engine stage, including a movable wheel supporting a plurality of vanes (18) surrounded, on the outside thereof, by a casing (66) provided, on the inner surface thereof, with a layer (70) of abradable m...  
WO/2012/103431A1
A variable speed compressor system (A) incorporating an electric power generation capability by combining a variable-speed compressor assembly (70) with an electric motor assembly (50) via a drive subassembly (30) in a compact unit regul...  
WO/2012/098625A1
An electric motor comprising a magnet rotor disposed across an air gap from a stator and formed from a plastic magnet in which a magnetic pole is expanded by a hydrogen bond, an inverter circuit, a DC voltage converter, a drive logic con...  
WO/2012/095062A1
The invention relates to a method which allows a reliable detection of the operating state independent of the state and position of the compressor blades and thus an optimal compressor operation. In an advantageous manner according to th...  
WO/2012/095592A1
The invention relates to a turbofan engine comprising a fan wheel (1) which supports blades (2) and is surrounded by an annular casing (3), the casing (3) including an air suction means (9, 10) in the annular clearance (8) formed between...  

Matches 501 - 550 out of 7,538