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WO/2005/026509A1 |
The temperature of a cooling subject fluid is detected and when the flow rate of the cooling subject fluid passing through a cooling means (30) as in the case of the lever in an operative position is high, the fan rpm of the cooling fan ...
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WO/2005/024187A1 |
Noise attenuator, especially for an aircraft turbofan engine air bleed system, comprises a perforated attenuator plate (16) extending over the outlet of an air bleed valve (1) and an intermediate attenuator plate (20) upstream of the fir...
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WO/2005/024199A1 |
A method for controlling the number of revolutions of a fan (17) for cooling fluid being cooled by rotating a fan motor (15) through control of a pump/motor system (19) for operating the fan motor (15) with working fluid being fed from a...
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WO/2005/021976A1 |
A control device for a compressor has inflow amount-regulating means (5) for regulating the amount of a fuel gas flowing into a compressor (1), a recycle valve (7) for returning the fuel gas discharged from the compressor (1) to the entr...
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WO/2005/017321A1 |
A variable nozzle device comprises an annular passage which is formed by two opposing wall members (3, 6; 17, 18, 6) which are separated along a rotational axis. A rotation conversion mechanism (9, 35; 172, 181) for converting a rotation...
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WO/2005/014986A1 |
The invention relates to a module (36) for controlling a fan motor (12), preferably a fan motor in a motor vehicle. At least one component (26) for reducing the control power of the fan motor (12) and at least one switching means (28, 30...
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WO/2005/014987A1 |
Actual temperatures of intake air, hydraulic fluid, and coolant being cooled by means of a cooling fan are detected, target numbers of revolution (Nti, Nto, Ntc) of the fan are determined by PI controllers (37-39) depending on the temper...
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WO/2005/012735A1 |
A multi-position pressurized fluid actuator (22) is mounted for movement in a casing (26). The actuator includes at least one selectively openable opening (42) at a location corresponding to an intermediate position through which pressur...
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WO/2005/010375A1 |
A driver, of the kind that slows down when the power requirement exceeds the maximum driver power, driving a gas compressor (104; 204; 304)is regulated by recycling, via a pressure relief device (102; 202; 302), compressed gas to the com...
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WO/2005/001257A1 |
The invention relates to an internal combustion engine (1) comprising a compressor (5) in the suction part (7), said compressor comprising a compression wheel which is rotationally mounted in a compression inlet channel (105). The compre...
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WO/2004/114512A1 |
A motor driver includes a first signal selector and a second signal selector. The first signal selector is used for selecting a signal to be supplied to an energizing unit of driving coils, and selects either one of a normal energizing p...
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WO/2004/108610A1 |
A sewage aeration turbocompressor for continuously delivering air at a relatively low pressure to a sewage sludge treatment plant. The compressor has a housing, an impeller (10) mounted on an impeller shaft within the housing, and an ele...
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WO/2004/104423A1 |
A pressure relief arrangement for a pump (10) which includes a pump housing assembly with a pumping chamber (25) therein, the pump housing assembly including a section (41) mounted for movement between a normal operating position and a v...
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WO/2004/094925A2 |
A method and apparatus for detecting surge in a refrigeration system that includes a centrifugal compressor having an impeller and a compressor entrance, an evaporator that receives a fluid refrigerant, a suction line that flows the refr...
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WO/2004/090479A1 |
An air capture device (10) for capturing air issuing from grills of air conditioning systems has a pair of rectangular frames (11, 12), a support rod (14) extending between and detachably engaged with the frames (11, 12), an air impervio...
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WO/2004/087982A2 |
An art, method and process of protecting fan/propeller blades, mainly the leading edge, from pitting as a result of corrosion and foreign object damage including dust particles. An art, method and manner of preventing humidity-led pittin...
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WO/2004/084665A2 |
A respirator helmet (10') or other helmet adapted to receive, by means of a plug (66) and socket arrangement (70), a pivotable bar (62) carrying a protective screen (63) such that the screen may be moved between a lowered position in fro...
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WO/2004/078018A2 |
A suctioning device (1) comprising at least two suctioning pumps (10, 20) mounted on the same vacuum collector (30), in addition to automatic management means (40) enabling said pumps (10, 20) to be operated in parallel or in a series, c...
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WO/2004/077005A1 |
The invention relates to a test-gas leak detector (1) comprising a connection (27) for a device under test, a sniffer, or a leak-detector chamber, a high-vacuum pump (2) with a test-gas detector (5) that is connected on the intake side o...
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WO/2004/063676A1 |
An apparatus for measuring the amount of air discharged from a vent is disclosed. The portable airflow meter for measuring the amount of discharged air is capable of accurately and quickly measuring the amount of air from an air conditio...
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WO/2004/055377A1 |
A vacuum pumping system comprises a vacuum pumping arrangement comprising: a drive shaft; a motor for driving said drive shaft; a molecular pumping mechanism comprising turbomolecular pumping means; and a backing pumping mechanism. The d...
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WO/2004/055378A1 |
A vacuum pumping arrangement (10) for controlling pressure in a chamber, the arrangement comprising a molecular pumping mechanism (12) and a backing pumping mechanism (14). The backing pumping mechanism (14) is rotatable by a motor (34),...
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WO/2004/053336A1 |
A compressor (100) includes an impeller (124) rotatably mounted in a housing (120) and a base plate (126) fixed to the housing (120) adjacent the impeller (124). The base plate (126) cooperates with the housing (120) to define a diffuser...
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WO/2004/051090A1 |
The invention relates to a device for generating an air current, in particular for cooling or heating electric components or sub-assemblies. The aim of the invention is to develop a device of this type in order to incorporate an addition...
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WO/2004/046509A1 |
A nozzle comprises a passage with at least one vane (1, 3; 21, 23) extending therein. At least one portion (1; 21) of said vane is movable into and out of said passage. By moving the movable portion (1; 21) relative to the stationary por...
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WO/2004/044466A1 |
A valve body (2, 102) comprises two inlet ports for receiving fluid at respective different pressures, an outlet port for delivering said fluid, a valve member (5, 105) mounted for limited movement within said body, and biasing means (60...
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WO/2004/042289A2 |
A boiler (1) has a combustion chamber (3) associated with a burner (4); a primary heat exchanger (5) for transferring heat from the fumes produced in the combustion chamber (3) to a heating fluid; a fan (7) for circulating the fumes; and...
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WO/2004/038229A1 |
The invention relates to a method for operating a compressor in the region of the compressor pumping point. According to said method, at least one variable compressor parameter is measured, compared with a nominal value and, in the event...
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WO/2004/031590A1 |
The invention relates to a device for compressing combustion air which is provided with an integrated air cooling system, is used for the internal combustion engine of a motor vehicle and comprises a crankcase (12), at least one compress...
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WO/2004/030200A1 |
A brushless DC fan motor capable of communicating with an external apparatus while simplifying the circuitry. A speed control command generating means (9) generating a command for controlling the rotational speed of the rotor comprises a...
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WO/2004/027265A1 |
The invention relates to a compressor (3) comprising a compressor wheel (9) that is rotatably mounted in a compressor housing (15) and a diffuser (11) with a variable diffuser geometry (13), positioned downstream of the compressor wheel....
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WO2004011811A9 |
A mix-in structure for a gas or the like in a pressurization centrifugal pump, capable of mix-discharging liquid and gas or the like to prevent cavitation and of suppressing gas residence in the pump chamber at the time of operation stop...
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WO/2004/022956A1 |
The invention relates to a method for operating a compressor in the induction tract of an internal combustion engine, especially in a motor vehicle. A state variable describing the behaviour of the compressor, e.g. the frequency and/or a...
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WO/2004/020839A2 |
The invention concerns a fixing device comprising a coaxial annular flange (14) wherein are provided through holes (16) designed to be traversed each by a screw (17) urged to be screwed in an associated tapped hole (15) of the wall of a ...
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WO/2004/018880A1 |
A system and method is provided for detecting and controlling rotating stall in the diffuser region 119 of a centrifugal compressor 108. A pressure transducer 160 is placed in the gas flow path downstream of the impeller 202, preferably ...
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WO/2004/018879A1 |
The present invention relates to a vacuum pump and a method of starting a vacuum pump. The vacuum pump includes a pump rotor (1) rotatably disposed in a casing (2), and a pump-rotor controller (15) for controlling rotation of the pump ro...
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WO/2004/018844A1 |
Disclosed is a recirculation structure for a turbocompressor, comprising an annular chamber which is arranged in the area of the free blade ends (25 to 28) of a blade ring and radially borders the main flow channel (29 to 32), and a plur...
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WO/2004/016951A1 |
A motor−driven turbo compressor, comprising an inlet guide vane (2) and an air discharge valve (10), wherein a data base on the minimum angle of the inlet guide vane against the temperature and pressure of working gas sucked into the c...
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WO/2004/013494A1 |
A control system is provided to maintain stable operating conditions for centrifugal compressors (108, 110) operating in parallel when one of the centrifugal compressors (108, 110) enters into an unstable operating condition. The control...
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WO/2004/010004A1 |
A pneumatically operated compressor bleed valve communicating between a compressor housing and a bypass duct of a gas turbine engine. The valve has an annular piston slidably mounted within an annular chamber concentric the longitudinal ...
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WO/2003/100259A1 |
A method and apparatus for monitoring operating characteristics and/or control signals of a system comprising a variable speed vacuum pump. Operating characteristics and/or control signals of the system may be monitored, and the pumping ...
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WO2003078838B1 |
A vacuum pump control device capable of suppressing a power consumption by a vacuum pump by varying the speed of the vacuum pump according to the operating conditions of a vacuum device, wherein a condition set part (4) sets a relation b...
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WO/2003/085268A1 |
Disclosed is a vacuum pump comprising a pump unit (10) and a control device (20), which are interconnected by means of cables. A microcontroller (26) that is provided in the control device (20) controls an inverter (25) supplying motor p...
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WO/2003/083275A1 |
The invention relates to a variable exhaust gas turbocharger for an internal combustion engine, comprising an exhaust gas turbine and a compressor having a variable swirl and/or throttle device. The exhaust gas turbocharger is configured...
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WO/2003/072949A1 |
The invention provides a compressor which includes a casing (10) defining a generally cylindrical flow passage (42), a rotor carrying at least one set of rotor blades (12), at least one set of stator blades (14), and anti-stall casing tr...
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WO/2003/072910A1 |
The invention relates to a recirculation structure for turbo chargers, comprising an annular chamber (29) bordering on the main flow channel (9) arranged in the region of the free blade ends of the blade ring to a large extent upstream t...
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WO/2003/071136A1 |
The invention relates to a side-channel blower which comprises a blower output (14) to which a valve unit (16) is coupled. Said valve unit (16) has at least one permanently open consumer connection (18) and at least one additional connec...
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WO/2003/070498A1 |
A control system (1) of an air conditioner for vehicle for reducing the cost and simplifying the circuits by reducing the number of harnesses, an FV conversion circuit, etc., comprising an A&sol C amplifier (2), a blower motor (4) and a ...
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WO/2003/065565A1 |
A rotational speed control system, comprising a plurality of motor drivers for driving a plurality of motors at a same rotational speed without relying upon the quantity of the motor drivers and the characteristics of the motor drivers, ...
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WO/2003/055030A1 |
The invention relates to a method for generating an alarm signal in a motor which comprises a rotor (50) whose effective operating speed is in a standard zone (nSoll, TSoll) and can deviate from said standard zone if defective, and is to...
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