| 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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| 06/23/2005 | US20050132712 Method and apparatus for detecting compressor stall precursors |
| 06/23/2005 | US20050132705 Engine turbocharger control management system |
| 06/23/2005 | CA2490381A1 Method and apparatus for detecting compressor stall precursors |
| 06/22/2005 | EP1147319B1 Electromotive drive |
| 06/22/2005 | CN1629495A Turbo chiller, compressor therefor, and control method therefor |
| 06/16/2005 | WO2005054683A1 Compressor having an adjustable diffuser wall and method therefor |
| 06/16/2005 | WO2005054645A1 Gas turbine, in particular aircraft engine and method for generating electrical energy in a gas turbine |
| 06/15/2005 | EP1540188A1 System and method for detecting rotating stall in a centrifugal compressor |
| 06/15/2005 | EP1540187A1 Stability control system and method for centrifugal compressors operating in parallel |
| 06/15/2005 | EP1540185A1 Vacuum pump and method of starting the same |
| 06/15/2005 | CN2704706Y Automatic speed-regulatable controller of wireless temperature regulating fan |
| 06/15/2005 | CN2704705Y Automatic switching apparatus of total wind pressure and local ventilator |
| 06/15/2005 | CN1206895C Fan protection |
| 06/08/2005 | EP1538341A1 Fluid compressors |
| 06/08/2005 | EP1537336A2 Device for fixing a vacuum pump |
| 06/08/2005 | CN1205739C DC fan driving circuit |
| 06/07/2005 | US6902378 Electronically controlled vacuum pump |
| 06/02/2005 | WO2005050027A1 Series fans with flow modification element |
| 06/02/2005 | WO2005050025A1 Fan comprising a laminar flow element that is situated in front of the intake opening |
| 06/02/2005 | WO2005049926A1 Cooling system for a blower |
| 06/02/2005 | US20050118034 Compressor unit with control system |
| 06/02/2005 | US20050118029 Apparatus and method for detecting fault of cooling fan |
| 06/02/2005 | US20050118013 Vacuum pumping arrangement |
| 06/02/2005 | US20050115256 Rotational speed control system, rotatingly driving system, air blow system, clean bench, outdoor unit of air conditioner |
| 06/02/2005 | CA2588508A1 Series fans with flow modification element |
| 06/01/2005 | EP1536147A2 Turbo compressor or pump with fluid injection to influence the boundary layer |
| 06/01/2005 | EP1536146A2 Turbo machine and fluid extraction |
| 05/31/2005 | US6899513 Inflatable compressor bleed valve system |
| 05/31/2005 | US6898934 External blow off conversion of compressor recirculation valve |
| 05/26/2005 | WO2005047708A1 Remotely controlled fan unit |
| 05/26/2005 | US20050114082 Method and apparatus for detecting rub in a turbomachine |
| 05/26/2005 | US20050111968 Compressor having casing treatment slots |
| 05/26/2005 | US20050109491 Radiator having a fan in variable rotation speed |
| 05/25/2005 | EP1533479A2 Method and apparatus for detecting rub in a turbomachine |
| 05/25/2005 | EP1532368A1 Compressor in an exhaust-gas turbocharger for an internal combustion engine |
| 05/25/2005 | CN2702105Y Dual-purpose blower for blowing and sucking |
| 05/25/2005 | CN2702099Y Fan capable of adjusting speed according to detected abnormities |
| 05/25/2005 | CN2702098Y Remote controllable variable speed direct current brushless fan |
| 05/24/2005 | CA2487911A1 Method and apparatus for detecting rub in a turbomachine |
| 05/19/2005 | US20050106009 Bleed housing |
| 05/19/2005 | US20050103012 External blow off conversion of compressor recirculation valve |
| 05/18/2005 | EP1531272A2 Fan and sensor |
| 05/18/2005 | EP1531236A2 Compressor housing with bleed apertures of a gas turbine engine |
| 05/18/2005 | EP1530670A1 Recirculation structure for a turbocompressor |
| 05/18/2005 | CN2701190Y A fan rotation speed control circuit |
| 05/18/2005 | CN1617981A Compressor unit with control system |
| 05/18/2005 | CN1202456C Ups风扇控制方法 Ups fan control method |
| 05/18/2005 | CN1202359C Turbomachine with variable flow guide blade |
| 05/17/2005 | US6894883 Engine cooling fan control system |
| 05/17/2005 | US6893221 Fan control |
| 05/17/2005 | US6892550 Electric compression device |
| 05/12/2005 | US20050100444 Control system for variable pitch fan |
| 05/12/2005 | US20050098641 Fan having a sensor |
| 05/11/2005 | EP1529161A1 Operational method for a compressor |
| 05/11/2005 | CN2699246Y Portable air flow meter for air discharge measurement |
| 05/11/2005 | CN2699021Y AC-DC dual-purpose emergency electric fan |
| 05/11/2005 | CN2699020Y DC temperature control fan |
| 05/05/2005 | US20050096767 Method for designing a blower wheel scroll cage |
| 05/05/2005 | US20050095138 Scalable, modular, high availability fan system |
| 05/05/2005 | US20050093500 Integrated, redundant high availability fan system |
| 05/04/2005 | EP1528260A1 Radial fan |
| 05/04/2005 | EP1528232A1 Cooling system for an internal combustion engine of a vehicle |
| 05/04/2005 | CN1200207C Device and method for preventing compressor inverse rotation |
| 04/28/2005 | WO2005037046A1 An air reflux assembly of the vaccum cleaner |
| 04/28/2005 | US20050086943 Turbine compartment ventilation control system and method using variable speed fan |
| 04/26/2005 | US6884034 Enhancements to high efficiency ceiling fan |
| 04/21/2005 | WO2005035992A2 System and method for stability control in a centrifugal compressor |
| 04/21/2005 | WO2004087982A3 Fan blade protector |
| 04/21/2005 | US20050084384 Smart fan and pump controller |
| 04/21/2005 | US20050081801 Cooling system for an internal combustion engine of a motor vehicle |
| 04/21/2005 | US20050081542 Method for actuating a fan using a plurality of characteristic curves and a control program for controlling the power of the fan |
| 04/21/2005 | US20050081536 Cryopump temperature control of arrays |
| 04/21/2005 | CA2638962A1 System and method for stability control in a centrifugal compressor |
| 04/21/2005 | CA2539240A1 System and method for stability control in a centrifugal compressor |
| 04/20/2005 | EP1524418A1 Method for controlling a fan with multiple characteristics and control program for the power control of the fan |
| 04/20/2005 | CN2694001Y Multistage speed electric fan |
| 04/19/2005 | US6881037 Two-piece safety mechanism for ceiling fans |
| 04/19/2005 | US6881029 Casing, a compressor, a turbine, and a combustion turbine engine including such a casing |
| 04/14/2005 | US20050076656 System and method for stability control in a centrifugal compressor |
| 04/14/2005 | DE102004045954A1 Verfahren zur Anpassung der Geräteheizleistung eines gebläseunterstüzten Heizgerätes an die individuellen Druckverluste eines Frischluft-Abgas-Leitungssystems Procedure for adjusting the heating power of a device gebläseunterstüzten heater to the individual pressure drops of fresh air exhaust duct system |
| 04/13/2005 | CN2692386Y Rotation speed control device of multirotor ceiling fan |
| 04/13/2005 | CN2692385Y Fan structure for light steel frame |
| 04/12/2005 | US6879120 Speed control circuit of brushless DC fan motor |
| 04/12/2005 | US6877953 Gas turbine |
| 04/07/2005 | WO2005031169A1 Detection of contaminants within fluid pumped by a vacuum pump |
| 04/06/2005 | CN2690632Y Multifunction electric fan |
| 04/06/2005 | CN1195963C Turbine compressor and refrigerator |
| 04/06/2005 | CN1195942C Remote control receiverfor fan |
| 04/05/2005 | US6876164 Complementary fan rotational speed control method and apparatus |
| 03/31/2005 | US20050070220 Blower unit and air conditioning unit including the same and method of controlling the same |
| 03/31/2005 | US20050067988 Motor driving system |
| 03/31/2005 | DE4410735B4 Einrichtung mit einem Feuerungsautomaten Device with an automatic burner |
| 03/31/2005 | DE102004039237A1 Lüfter-Steuerungssystem Fan control system |
| 03/30/2005 | EP1519113A2 Method for adapting the heating power of a blower-supported heater to the individual pressure losses of a fresh air/exhaust gas pipe system |
| 03/30/2005 | CN1601112A Automatic exhaust fan |
| 03/30/2005 | CN1601111A Method for forecasting surge in turbine compressor |
| 03/29/2005 | US6872050 Variable geometry diffuser mechanism |
| 03/29/2005 | US6871487 System for detecting and compensating for aerodynamic instabilities in turbo-jet engines |
| 03/24/2005 | WO2005026509A1 Fan rpm control method |
| 03/24/2005 | DE10115394B4 Maschinenbauteil und/oder verfahrenstechnische Anlage mit einem Hohlraum und Reinigungsverfahren hierfür Machine component and / or process plant having a cavity and cleaning method therefor |