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WO/2014/019835A1 |
The invention concerns a blower device (1) for connecting to a gas burner, which is designed to pre-mix a gas-air mixture before it is fed to the gas burner. The gas blower (1) has a blower housing (2), consisting of a housing cover and ...
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WO/2014/017049A1 |
An air blower (10) equipped with a brushless DC motor (11) is provided with an inverter circuit (4), a drive logic control unit (5), a duty instruction unit (6), a motor voltage detection unit (13), a motor current detection unit (12), a...
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WO/2014/000480A1 |
A blower driven by a DC motor, comprising a blower casing, a wind wheel and an ECM motor. The ECM motor comprises an ECM motor body and an ECM motor controller. The ECM motor body and the ECM motor controller are connected by a wire. The...
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WO/2013/180833A1 |
The present invention provides a method and apparatus of inhibiting a thrust bearing capacity of a compression system from being exceeded during a surge event in which a thrust bearing is biased with a biasing force to increase the thrus...
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WO/2013/180919A1 |
The present invention relates to a method and control system to control the speed of a centrifugal compressor operating within a vacuum pressure swing adsorption process to avoid an operation at which surge can occur and directly driven ...
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WO/2013/177862A1 |
A variable speed fan system comprises a permanent magnet motor and a fan driven by the permanent magnet motor. The permanent magnet motor comprises a stator component, a rotor component, and a motor controller. The rotor component is a s...
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WO/2013/171245A1 |
The invention relates to a pump unit comprising a pump and an inverter drive, said inverter drive comprising a motor for driving the pump, a control unit for controlling the motor and a storage unit operatively connected to the control u...
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WO/2013/171675A1 |
The present invention refers to a ventilation unit (1) arranged to effect flow reversal, according to two opposite directions, of a gas flow generated by a fan without reversing the rotation direction of the fan. The ventilation unit (1)...
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WO/2013/166626A1 |
A dual-drive parallel sequential booster compressor comprises a compressor housing (1). A compressor impeller (2) is installed inside the compressor housing (1). A compressor flow channel is provided inside the compressor housing (1). A ...
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WO/2013/165281A1 |
The invention concerns a supporting structure (37, 37') for a gas turbine engine (1, 100), said structure (37, 37') comprising an inner ring (10), an outer ring (11), and a plurality of circumferentially spaced, load carrying radial elem...
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WO/2013/156726A2 |
The invention relates to a casing for a turbine engine compressor, comprising: cavities (5) in the thickness of the casing, extending in parallel to one another from the inner face of the casing along a circumference thereof, said caviti...
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WO/2013/156752A1 |
A fan assembly comprising an air inlet, at least one air outlet, an impeller, a motor for rotating the impeller to draw air through the air inlet, at least one heater assembly, and a user interface for allowing a user to select a speed s...
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WO/2013/156725A2 |
The invention relates to a compressor for a turbine engine, comprising: a casing, at least one compressor stage formed by an impeller having stationary blades and an impeller having moving blades (1) positioned downstream of the stationa...
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WO/2013/150264A1 |
Heating apparatus comprises an air inlet, at least one air outlet, an impeller, a motor for rotating the impeller to draw air through the air inlet, a user interface for allowing a user to select a rotational speed of the motor from a us...
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WO/2013/117271A1 |
The invention relates to a method for avoiding pump surges in a compressor (2), wherein a plurality of parameters of the compressor (2) are monitored during operation and a desired value range for the plurality of parameters is predeterm...
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WO/2013/110324A1 |
Compressor control including both surge detection and surge prevention. In one aspect of the invention, upon surge detection the rotating speed of the compressor is modified before a relief valve is opened. In a second aspect of the inve...
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WO/2013/110733A1 |
The compressor system comprises a driver machine DR, for example a motor or a turbine, an epicyclic gearbox EGB and a centrifugal compressor CC; they are connected in train configuration, i.e. the output rotary member of the driver machi...
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WO/2013/107489A1 |
The invention relates to an air-assisted injection system for the compressor system of a turbo machine, wherein a recirculated or an externally fed primary mass flow requests a secondary mass flow from the outer region of the compressor ...
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WO/2013/087740A2 |
At least part of a fluid is compressed in a compressor driven by an electric motor. The compressor has variable inlet guide vanes of which an angle can be adjusted. The electric motor is powered using a power supply network, and a signal...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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,...
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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...
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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,...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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;...
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