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WO/2008/094501A1 |
In a rotodynamic pump, a seal chamber conditioning valve mechanism is positioned at least partially within the seal chamber of the pump to selectively and intermittently deliver fluid to or discharge contents from the seal chamber to mod...
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WO/2008/087731A1 |
A refrigeration cycle system for cooling of a medium to be cooled, comprising refrigerant compressor (3) for compressing of the refrigerant after cooling of a medium to be cooled; condenser (6) for condensing of the refrigerant having be...
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WO/2008/087432A1 |
A compressor comprises an impeller wheel mounted within a housing defining an inlet and an outlet. The wheel has a plurality of vanes and is rotatable about an axis. The housing has an inner wall defining a surface located in close proxi...
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WO/2008/077665A1 |
The invention relates to a control unit (16), in particular for a cooling-air fan (14) of an internal combustion engine (2), having a housing, in which a printed circuit board is arranged for receiving electronic components and conductor...
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WO/2008/059665A1 |
A ceiling fan includes a motor for rotating blades. The motor comprises a hollow shaft installed upright at the center of a disk-like stator and a rotor surrounding the outer circumference of the stator and rotating integrally with the b...
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WO/2008/057627A2 |
A guide vane assembly including an annular casing and vanes that are coupled to and extend radially inwardly from the annular casing. Each vane includes a first wall, a second wall, a leading edge, a first wall trailing edge, and a secon...
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WO/2008/056782A1 |
A turbo refrigeration device having a two-stage turbo compressor with high efficiency. The turbo refrigeration device has a control section for controlling the opening degrees of a first inlet vane of a first impeller and that of a secon...
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WO/2008/049818A2 |
A method of controlling the turndown of a compressor (12) for a gaseous hydrocarbon stream (10) such as natural gas, comprising at least the steps of : (a) passing the gaseous hydrocarbon stream (10) through the compressor (12) to provid...
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WO/2008/047162A1 |
The present invention provides an extraction unit suitable for use with gaseous fluids comprising: a first panel member comprising means for connection to a plurality of fluid ducts, said means for connection to a plurality of fluid duct...
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WO/2008/044314A1 |
A blower (1) having a fan (20) placed in a casing (10), a drive device (30) for rotating the fan (20), a dust protection cover (60) for covering an intake opening (11) of the casing (10), and a drive stop mechanism (70) for stopping the ...
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WO/2008/041450A1 |
A blower (1) has a fan (20) provided in a casing (10), a drive device (30) for rotating the fan (20), and a duct (40) for discharging airflow generated by the rotating fan (20) to the outside. A dustproof cover (60) is fixed to an air in...
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WO/2008/021632A2 |
Disclosed herein are turbocharger systems and methods for their operation. In one embodiment a turbocharger system (2) is disclosed. The turbocharger system comprises a turbine (4), a compressor (6), an air inlet (16), a first sensor (22...
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WO/2008/018202A1 |
A pump (1) including an impeller (11) having blades (111) on its outer periphery and a rotor magnet (112) on its inner periphery, a motor stator (12) placed facing the rotor magnet (112), a pump casing (13) for partitioning between the i...
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WO/2008/018380A1 |
The amount of air passing through a centrifugal compressor (26a) is acquired according to the output of an airflow meter (18). A surge limit compressor speed is acquired according to the acquired air amount passing through the compressor...
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WO/2008/012150A1 |
The invention relates to a method for determining a statement of a state of a turbomolecular pump and a turbomolecular pump, wherein a vibration curve is determined with a vibration sensor (10) connected to the turbomolecular pump. The d...
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WO/2008/000459A1 |
Disclosed is a turbo engine comprising a first process control element (5), a second process control element (8), and a test system for testing the first process control element, the first process control element and the second process c...
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WO/2007/146754A1 |
In some embodiments, a system includes an electronic system board, a fan positioned to provide cooling for the electronic system board, wherein the fan is configured to be controlled by a pulse width modulated signal, and a fan startup c...
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WO/2007/144430A1 |
A gas turbine compressor presents a first fixed stage (5) having a plurality of first adjustable vanes (11) and a further fixed stage (7), which has an inner ring (12) extending about a first axis (A1); an outer ring (13) arranged about ...
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WO/2007/141160A1 |
The invention relates to an annular flow duct (18) for a turbomachine, said flow duct (18) being arranged concentrically about a machine axis (2) running in the axial direction and being defined by a boundary wall (22, 24) of circular cr...
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WO/2007/140208A2 |
A system for controlling a motor for use in a ventilation system may include a motor, a voltage adjustment system, a user interface, and a motor controller. The voltage adjustment system may be configured to adjust a voltage applied to t...
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WO/2007/140156A1 |
A turbocharger system having a compressor housing containing a rotating compressor wheel with a plurality of impellers that define an impeller passageway from an inducer to an exducer. The compressor housing includes an annular upstream ...
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WO/2007/135991A1 |
A stall sign detector of an axial flow compressor comprising a rotor provided with a plurality of rotor blades, and a tubular casing provided oppositely to the rotor blades to cover the outer circumference of the rotor further comprises ...
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WO/2007/122499A1 |
The invention calculates a second order differential of at least one of an airflow rate of a centrifugal compressor (26a) (step S 108) and a pressure and a temperature of air in an inlet of the centrifugal compressor. Then, the invention...
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WO/2007/116319A2 |
A gas turbine engine system (30) including a plurality of bleed off doors (23) forming a portion of a conical surface in the flow path (60) between the low pressure compressor (62) and the intermediate pressure compressor (63). A plurali...
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WO/2007/110308A1 |
In a method of operating a gas turbine during shut down the gas turbine is decelerated and closure of compressor inlet guide vanes (1) is initiated at a shaft speed at least 5% above the shaft speed where a (stall incuced) vibration peak...
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WO/2007/104878A2 |
A compressor comprises a first stage and a second stage (1, 2) which are mounted on a common axis with means for supplying the first stage with a gas that is to be compressed, means for transferring the compressed gas from the delivery s...
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WO/2007/102226A1 |
A fan (43) forms a centrifugal fan. A rotational speed detection circuit (65) detects the actual rotational speed of a fan wheel (44). A separation detection circuit (69) detects the amount of separation between the actual rotational spe...
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WO/2007/098133A1 |
A novel one or two stage turbocharged engine breather system achieves low nitrous oxide NOx emissions while having a high integration of components yet maintains cost competitiveness . A unique compressor breathing system for an engine i...
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WO/2007/095537A1 |
A multi-stage compression system includes a plurality of centrifugal compression stages. Each stage includes an impeller and a variable speed motor coupled to the impeller. Each variable speed motor is operable at a speed between a first...
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WO/2007/078667A1 |
A turbocharger system having a compressor wheel including blades that define an inducer and an exducer, a compressor housing configured to receive the compressor wheel, and an impeller passage within which air is to be compressed by the ...
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WO/2007/075733A2 |
An air movement system including a blower and an external controller operable to receive signals from a sensing device and generate a command based on the received signals. The command includes an address. The system also includes a comm...
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WO/2007/068969A1 |
Apparatus for detecting a flammable atmosphere within a compressor during operation thereof is provided. The apparatus comprising a test chamber which is selectably connected between the compressor and an exhaust duct of the compressor u...
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WO/2007/057257A1 |
The invention relates to a compressor wheel for an exhaust gas turbocharger, comprising compressor blades and a central piece to which the compressor blades are secured, said central piece being mechanically connectable to a turbine shaf...
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WO/2007/051444A2 |
Disclosed is a multistage compressor (1) for a gas turbine, comprising a compressor housing (2), guide vanes (7), impeller vanes (6), a hub area (3), discharge ports (5), and injection ports (4) to stabilize the compressor. The inventive...
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WO/2007/042353A1 |
The invention relates to a cooling fan module for a motor vehicle. The invention also relates to a cooling fan module which comprises a first fan motor which is used to drive a first cooling fan and a second fan motor which is used to dr...
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WO/2007/042842A1 |
A vacuum pumping arrangement for evacuating an enclosure is provided. The arrangement comprises a turbomolecular vacuum pump having an inlet which is connectable using fixing members to an outlet of an enclosure to be evacuated. Each of ...
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WO/2007/042351A1 |
The invention relates to a cooling fan module for a motor vehicle. The invention also relates to a cooling fan module which comprises a first fan motor which is used to drive a first cooling fan and a second fan motor which is used to dr...
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WO/2007/040179A1 |
A supply current control circuit controls a voltage of a low voltage direct current power supply to have an average current of an inverter circuit detected by a current detecting circuit constant at a prescribed current value. Thus, char...
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WO/2007/040180A1 |
A supply current control circuit controls a voltage of a low voltage direct current power supply to have an average current of an inverter circuit detected by a current detecting circuit constant at a prescribed current value. Thus, char...
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WO/2007/035700A2 |
A multi-stage fluid compression system includes a first centrifugal compressor stage having a first inlet and a first outlet and a second centrifugal compressor stage having a second inlet and a second outlet. The second inlet receives a...
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WO/2007/025865A1 |
A vacuum turbomolecular pump (10) is driven by a brushless direct current drive motor (16), which has stator coils and a permanent magnetic-exited motor rotor. When rotating, the motor rotor produces an electromotive force oriented count...
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WO/2007/010170A2 |
The invention concerns a device for vacuum pumping comprising at least one main pump (1) and one auxiliary pump (2) connected in series, respectively driven by a first electric motor (1b) and a second electric motor (2b) themselves power...
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WO/2007/006472A1 |
The invention relates to a blown film manufacturing installation (15) that has the following characteristics: a blow head (2) from which a tubular film (1) can be extruded; at least one fan (20, 23, 27), with the aid of which air can be ...
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WO/2007/000390A1 |
The invention relates to a method for increasing aerodynamic stability of a flow of working fluid of a compressor of a turbo machine, in particular, a compressor of a gas turbine which is used to produce a current, in particular, in rela...
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WO/2006/132541A1 |
The present invention relates to a subsea compression system for well fluid boosting by compressing hydrocarbon gases and pumping hydrocarbon liquids where said system comprises one or more subsea compression stations and one or more lon...
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WO/2006/127099A1 |
A cooling fan (100) comprising a housing (10), an electric motor (30), a blade assembly (20), and a first motor control circuit board (40). The housing (10) is operable to connect to a computer chassis that supports an electronic compone...
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WO/2006/117073A1 |
The invention relates to an internal combustion engine exhaust-gas turbocharger comprising the turbine wheel of a turbine which is totally connected to the compressor impeller of a compressor by means of a shaft, wherein the compressor h...
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WO/2006/114491A1 |
The inventive method consists in defining a device loss of load and in calculating a minimum required pressure corresponding to a minimum flow rate and a maximum required pressure corresponding to a maximum flow rate, in defining a flow ...
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WO/2006/110692A1 |
A centrifugal turbomachine includes an impeller and a speed sensor arranged to detect a speed associated with an impeller speed. A temperature sensor is arranged to detect a temperature associated with an impeller exit temperature. A con...
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WO/2006/108730A1 |
The invention relates to an electronic module (2) for a fan or a cooling air blower of an internal combustion engine in a motor vehicle. According to the invention, the electronic module (2) comprises at least one deformable element (12,...
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