| Patents for F04D 27 - Control, e.g. regulation, of pumps, pumping nstallations or pumping systems specially adapted for elastic fluids (9,590) |
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| 04/29/2004 | US20040081560 Turbomolecular pump |
| 04/29/2004 | US20040081552 Fluid flow machine with integrated fluid circulation system |
| 04/28/2004 | EP1413771A1 Casing, compressor, turbine and gas turbine engine having such casing |
| 04/28/2004 | EP1413763A1 Rotating vane diffuser for a centrifugal compressor |
| 04/28/2004 | EP1413762A2 A method of balancing the supply of bleed air from a plurality of gas turbine engines |
| 04/28/2004 | EP1413761A2 Molecular pump and flange |
| 04/28/2004 | CN2613621Y Fan with touch stopping rotation protective function |
| 04/28/2004 | CN1492129A Method and device for supporting variable bypass valve system |
| 04/27/2004 | US6726455 Fan having a heat sensor device |
| 04/27/2004 | US6726441 Compressor, in particular for an internal combustion engine |
| 04/22/2004 | WO2004020839A3 Device for fixing a vacuum pump |
| 04/22/2004 | US20040076513 Rotating vane diffuser for a centrifugal compressor |
| 04/22/2004 | US20040076508 Safety jacket for rotary blade housings |
| 04/20/2004 | US6722859 Electromagnetic device capable of controlling the revolving speed of a multi-fan assembly |
| 04/15/2004 | WO2004031590A1 Electrical charge air compressor provided with an integrated air cooling system |
| 04/15/2004 | US20040072538 Ventilation apparatus with integral intumescent fire and smoke stop and method of manufacturing thereof |
| 04/15/2004 | DE20320280U1 Radial fan for a domestic burner comprises a laminar element arranged in front of an air inlet and having in a bypass a sensor for determining a parameter of the medium flowing through the air inlet |
| 04/15/2004 | DE10245798A1 Elektrisch betriebener Ladeluftverdichter mit integrierter Luftkühlung Electrically driven charge air compressor with integrated air cooling |
| 04/15/2004 | CA2444106A1 Ventilation apparatus with integral intumescent fire and smoke stop and method of manufacturing same |
| 04/13/2004 | US6719625 Method and apparatus for controlling variable air volume supply fans in heating, ventilating, and air-conditioning systems |
| 04/08/2004 | WO2004030200A1 Brushless dc fan motor |
| 04/08/2004 | US20040068387 Method and system for detecting precursors to compressor stall and surge |
| 04/08/2004 | US20040067135 Variable pitch fan |
| 04/07/2004 | EP1406018A2 Method and system for detecting precursors to compressor stall and surge |
| 04/07/2004 | EP1404975A1 Flow stabilizing device |
| 04/07/2004 | CN1487173A Running controlling apparatus and running controlling method for single-shaft combine equipment with clutch |
| 04/06/2004 | US6717165 Device and method for detecting the drive state of a turbo pump in a tandetron accelerator of an ion implantation device |
| 04/06/2004 | US6715984 Stall prediction method for axial flow compressor |
| 04/01/2004 | WO2004027265A1 Compressor in an exhaust-gas turbocharger for an internal combustion engine |
| 04/01/2004 | US20040062666 Fan having a heat sensor device |
| 04/01/2004 | US20040062656 Two-piece safety mechanism for ceiling fans |
| 04/01/2004 | US20040062642 Process gas extraction device for an axial compressor, having a high degree of adaptability to changes in the operating characteristics of the compressor |
| 04/01/2004 | DE10342777A1 Betriebssteuer- bzw. -regelvorrichtung und Betriebssteuer- bzw. -regelverfahren für ein kombiniertes Einwellen-Kraftwerk Operation control regulating system and operation control -regelverfahren for a combined single-shaft power plant |
| 03/31/2004 | CN1485543A Ups风扇控制方法 Ups fan control method |
| 03/30/2004 | US6712282 Fluid delivery device, particularly for delivery of combustion air to a heating burner of a motor vehicle |
| 03/25/2004 | US20040055310 Control system for positioning compressor inlet guide vanes |
| 03/25/2004 | US20040055273 Gas turbine control system |
| 03/25/2004 | US20040055272 Operation control apparatus and operation control method for single-shaft combined plant |
| 03/24/2004 | EP0871818B1 Surge recurrence prevention control system for dynamic compressors |
| 03/23/2004 | US6709246 Inflation/deflation device having spring biased value |
| 03/23/2004 | US6709238 Two-piece safety mechanism for ceiling fans |
| 03/23/2004 | US6709226 Vacuum pump |
| 03/23/2004 | US6709111 Cooling fan controller and liquid crystal projector |
| 03/18/2004 | WO2004022956A1 Operational method for a compressor |
| 03/18/2004 | WO2004011811A9 Mix-in structure for gas or the like in pressurization centrifugal pump |
| 03/18/2004 | US20040050071 Methods and apparatus for supporting variable bypass valve systems |
| 03/17/2004 | EP1398464A2 Supporting variable bypass valve in a gas turbine |
| 03/17/2004 | CN1482368A Fish suction pump |
| 03/16/2004 | US6705835 Electric fan |
| 03/16/2004 | US6705830 Vacuum pump |
| 03/11/2004 | WO2004020839A2 Device for fixing a vacuum pump |
| 03/11/2004 | DE10238658A1 Compressor, especially, for exhaust turbocharger for IC engines has adjusting ring with adjusting elements to charge diffuser body guide blades at a distance to blade shaft |
| 03/10/2004 | CN1480651A Procedue air exhausting device with high adaptability for axial-flow compressor |
| 03/09/2004 | US6701716 Bleed valve assembly |
| 03/04/2004 | WO2004018880A1 System and method for detecting rotating stall in a centrifugal compressor |
| 03/04/2004 | WO2004018879A1 Vacuum pump and method of starting the same |
| 03/04/2004 | WO2004018844A1 Recirculation structure for a turbocompressor |
| 03/04/2004 | US20040043860 Toroidal continuously variable transmission |
| 03/04/2004 | DE10330084A1 Rezirkulationsstruktur für Turboverdichter A recirculation for turbo compressors |
| 03/03/2004 | EP1394388A2 System and method for actively changing an effective flow-through area of an inlet region of an aircraft engine |
| 03/03/2004 | CN1479015A Sealing system of radial compressor for treating vulnerability gas |
| 03/02/2004 | US6699008 Flow stabilizing device |
| 02/26/2004 | WO2004016951A1 Turbo compressor and method of operating the turbo compressor |
| 02/26/2004 | US20040037693 System and method for detecting rotating stall in a centrifugal compressor |
| 02/26/2004 | DE10335615A1 Elektrische Kompressionsvorrichtung Electric compression device |
| 02/26/2004 | DE10237416A1 Operating method for turbocharger compressor which monitors frequency characteristic of air flow sensor signal to indicate presence of compressor pumping |
| 02/25/2004 | EP1101037B1 Rotation device with drive motor |
| 02/25/2004 | CN1477354A Electric compressor |
| 02/24/2004 | US6695591 Multi-stage gas compressor system |
| 02/24/2004 | US6695046 Variable speed fan motor control for forced air heating/cooling system |
| 02/19/2004 | US20040033136 Controller for variable pitch fan system |
| 02/19/2004 | US20040031286 Suction connection for dual centrifugal compressor refrigeration systems |
| 02/19/2004 | DE10152026A1 Warnung vor Pumpgrenze oder Schaufelschaden bei einer Turbomaschine Warning of the surge line or blade damage in a turbomachine |
| 02/17/2004 | US6691525 Hot gas bypass control for centrifugal chillers |
| 02/12/2004 | WO2004013494A1 Stability control system and method for centrifugal compressors operating in parallel |
| 02/12/2004 | US20040028529 Vane for a rotor arrangement for a gas turbine engine |
| 02/12/2004 | US20040025523 Stability control system and method for compressors operating in parallel |
| 02/12/2004 | DE10232717A1 Fan control circuit for vehicle cooling fan, has additional power switch for turning on electrical drives in fan device that are supplied by energy storage device or on-board electrical system |
| 02/11/2004 | EP1388204A1 Drive unit |
| 02/11/2004 | EP1387934A1 Smart surge bleed valve system and method |
| 02/11/2004 | CN1474063A Structure for preventing centrifugal compressor from reverse rotation |
| 02/11/2004 | CN1474062A Method and device for closed-loop controlling cooling fan rotation speed according to CPU temperature |
| 02/10/2004 | US6688108 Power generating system comprising a combustion unit that includes an explosion atomizing unit for combusting a liquid fuel |
| 02/05/2004 | WO2004011811A1 Mix-in structure for gas or the like in pressurization centrifugal pump |
| 02/05/2004 | US20040022638 Cooling fan, in particular for motor vehicles |
| 02/05/2004 | US20040020227 Electric compression device |
| 02/05/2004 | DE10234345A1 Fan arrangement for vehicle ventilation has dual fan and at least one of two outflow channels with return element via which it can be connected to induction channel depending on situation |
| 02/05/2004 | CA2493419A1 Mix-in structure for gas or the like in pressurization centrifugal pump |
| 02/03/2004 | US6684944 Variable speed fan motor control for forced air heating/cooling system |
| 01/29/2004 | WO2004010004A1 Pneumatic compressor bleed valve |
| 01/29/2004 | US20040018105 Stacked redundant blowers |
| 01/29/2004 | US20040018096 Compressor degradation detection vapor compression system |
| 01/29/2004 | US20040018079 Fan control |
| 01/29/2004 | US20040016238 Pneumatic compressor bleed valve |
| 01/29/2004 | DE10233032A1 Strömungsarbeitsmaschine mit integriertem Fluidzirkulationssystem Flow machine with integrated fluid circulation system |
| 01/29/2004 | DE10230242A1 Verfahren zum Betreiben einer Gebläseeinrichtung in einem Gargerät und Gargerät zum Durchführen dieses Verfahrens Method for operating a blower unit in a cooking appliance and cooking device for performing this method |
| 01/28/2004 | EP1384606A1 Blower unit and method for ventilating a vehicle |
| 01/28/2004 | CN1136485C Surge prevention control system for dynamic compressors |
| 01/27/2004 | US6684178 Systems and methods for monitoring the usage and efficiency of air compressors |
| 01/27/2004 | US6681804 Device for controlling the output of rotary compressors |