| 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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| 11/07/2007 | CN200971872Y Cold air fan |
| 11/01/2007 | WO2007122499A1 Control apparatus and control method for internal combustion engine having centrifugal compressor |
| 11/01/2007 | WO2007104878A3 Multi-stage compressor, air-separating apparatus comprising such a compressor, and installation |
| 11/01/2007 | US20070253806 Electric Fan |
| 10/31/2007 | EP1850013A2 Ventilator assembly |
| 10/31/2007 | CN200968325Y Electric air charging and releasing apparatus capable of heat sinking and pressure relieving |
| 10/31/2007 | CN200968301Y Standard fan |
| 10/31/2007 | CN101065582A Improving centrifugal compressor performance by optimizing diffuser surge control and flow control device settings |
| 10/31/2007 | CN101063455A A method and apparatus for maintaining air characteristics in an air ventilated facility using fan filter units |
| 10/31/2007 | CN100346262C Fan rotary speed control system and method |
| 10/31/2007 | CN100346247C Method for controlling operating efficiency of water pump fan for industrial controller and configuration software |
| 10/30/2007 | CA2544366C A natural gas compressor and a system for operating the same |
| 10/25/2007 | US20070248453 Improving Centrifugal Compressor Performance by Optimizing Diffuser Surge Control and Flow Control Device Settings |
| 10/25/2007 | US20070248449 Cowling |
| 10/25/2007 | DE102007017682A1 Axial fan arrangement for ventilation of low-power building, has flow-controlling arrangement generating speed-reference value for electrically commutated motor, and speed controller controlling speed of motor to speed-reference value |
| 10/24/2007 | EP1848226A1 Improved air control system for an air bed |
| 10/24/2007 | EP1847715A1 Method for operation of a turbocompressor and turbocompressor |
| 10/24/2007 | EP1846660A1 Method for optimizing the functioning of a plurality of compressor units and corresponding device |
| 10/24/2007 | CN200964963Y Timing exhaust fan |
| 10/23/2007 | US7284296 Car wash blower control |
| 10/17/2007 | EP1844237A1 Method of operating a pumping system |
| 10/16/2007 | US7281370 Fan revolution speed control method |
| 10/11/2007 | US20070237623 Variable clearance positive pressure packing ring and carrier arrangement with leaf springs |
| 10/04/2007 | WO2007110308A1 Method of operating a gas turbine power plant |
| 10/04/2007 | DE102006006548B3 Verfahren zur Steuerung eines Lüfters A method for controlling a fan |
| 10/03/2007 | EP1840355A1 Method of operating a gas turbine power plant |
| 10/03/2007 | CN200955511Y Infrared inductive electric fan |
| 10/03/2007 | CN101046209A Universal fan driving method and device |
| 10/02/2007 | US7275368 Fan revolution speed control method |
| 09/27/2007 | US20070224032 Compressor Apparatus with Recirculation and Method Therefore |
| 09/26/2007 | EP1837527A1 A rotary blower and aspirator having a modifiable conformation |
| 09/26/2007 | EP1639245B1 Internal combustion engine comprising a compressor in the suction part and method therefor |
| 09/26/2007 | CN200952495Y Frame type fan |
| 09/26/2007 | CN100339663C Turbo chiller, compressor therefor, and control method therefor |
| 09/26/2007 | CN100339557C Compressor with multi-stage axial structure mode |
| 09/20/2007 | WO2007104878A2 Multi-stage compressor, air-separating apparatus comprising such a compressor, and installation |
| 09/20/2007 | US20070217902 Centrifugal compressor with surge control, and associated method |
| 09/20/2007 | US20070217901 Hydroelectric power plant and method of generating power |
| 09/20/2007 | DE19531413B4 Anordnung zur Versorgung der hydraulischen Lenkung eines Kraftfahrzeugs Arrangement for supplying the hydraulic steering system of a motor vehicle |
| 09/20/2007 | CA2645202A1 Multi-stage compressor, air-separating apparatus comprising such a compressor, and installation |
| 09/19/2007 | CN200949567Y Frame-type fan |
| 09/19/2007 | CN200949560Y Air intake regulating valve port of fan |
| 09/13/2007 | WO2007102226A1 Fan apparatus, electronic apparatus, and control method for them |
| 09/13/2007 | US20070212210 Method for determining pump flow without the use of traditional sensors |
| 09/13/2007 | US20070212209 Method For Reduction Of Axial Power Variations Of A Wind Power Plant |
| 09/13/2007 | DE102007010768A1 Regulator for regulating operation of e.g. centrifugal pump, has module to determine flow acquisition data based on different pump- and motor parameters such as number of revolutions, torque and efficiency, from calibrated flow curves |
| 09/13/2007 | DE102007009302A1 Pump flow determining method for e.g. centrifugal pump, involves providing calibrated curve with closed valve with revolutions, and calculating coefficients from curve for output against flow rate on basis of performance ratio of pump |
| 09/13/2007 | DE10061970B4 Turboverdichter Turbo Compressor |
| 09/12/2007 | EP1832717A1 Method for influencing the blade tip flow of an axial turbomachine and annular channel for the main axial flow through a turbomachine |
| 09/12/2007 | EP1546562B1 Pneumatic compressor bleed valve |
| 09/12/2007 | CN200946578Y Stepless adjusting mechanism for electric fan shaking angle |
| 09/12/2007 | CN200946159Y Energy-saving hydraulic station adapted for stainless steel polishing production line |
| 09/12/2007 | CN101035989A Rapidly rotating vacuum pump |
| 09/12/2007 | CN101033753A Methods and systems of variable extraction for compressor protection |
| 09/12/2007 | CN101033750A Fan system and detecting device thereof |
| 09/12/2007 | CN101033749A Method for optimizing valve position and pump speed in a pid control valve system without the use of external signals |
| 09/05/2007 | CN200943591Y Rocking electric fan swing angle remote control regulation device |
| 09/05/2007 | CN200943589Y Automatic temperature-controlling electric fan |
| 09/05/2007 | CN100335796C Intelligent spare fan control system |
| 08/30/2007 | WO2007098133A1 Turbocharger compressor housing with integrated throttle valve and recirculation-bypass system |
| 08/30/2007 | DE102006008685A1 Air fan rotation speed control method for a computer system in which automatic and manual modes sense heat dissipation conditions to yield a speed regulation signal and executing regulation command to regulate the speed, respectively |
| 08/29/2007 | EP1826412A2 Fan with outlet flow measurement |
| 08/29/2007 | EP1825147A1 Method for operation of a compressor supplied by a power converter |
| 08/29/2007 | CN200940583Y Electric fan swinging mechanism capable of regulating angle |
| 08/29/2007 | CN200940582Y Rotary ceiling fan |
| 08/29/2007 | CN200940581Y Double side electric fan |
| 08/29/2007 | CN101027491A Compressor apparatus with recirculation and method therefore |
| 08/29/2007 | CN101025170A Blower unit |
| 08/29/2007 | CN101025163A Fan rotating-speed control system and method |
| 08/23/2007 | WO2007095537A1 Multi-stage compression system and method of operating the same |
| 08/23/2007 | DE60215396T2 Variable düse für turbolader Variable nozzle turbocharger for |
| 08/23/2007 | DE102006044725A1 Fan speed controlling device for e.g. lorry, has planetary gear train, which is inserted between vehicle-motor and fan, and connected with motor and fan, where gear train is steplessly switchable between operating conditions |
| 08/22/2007 | EP1147291B1 Compressor endwall bleed system and method of operation |
| 08/16/2007 | WO2007075733A3 A motor, a method of operating a motor, and a system including a motor |
| 08/16/2007 | US20070186566 Cryogenic fluid pumping system |
| 08/15/2007 | EP1817503A1 Method for operating a turbocompressor |
| 08/15/2007 | EP1817500A2 Fore-line preconditioning for vacuum pumps |
| 08/15/2007 | EP1567771B1 Fan |
| 08/15/2007 | EP1247985B1 Method for selecting centrifugal fluid machine by computer |
| 08/15/2007 | CN101016905A Electric device |
| 08/15/2007 | CN101016904A Plant facility |
| 08/14/2007 | US7254948 Boost wastegate device for EGR assist |
| 08/14/2007 | CA2538933C Improved air control system for an air bed |
| 08/08/2007 | EP1816353A2 Compressor stator bleed system |
| 08/08/2007 | EP1816352A2 Controller for a motor and a method of controlling the motor |
| 08/08/2007 | CN2931875Y Intelligence exhaust fan |
| 08/08/2007 | CN101014233A Electronic equipment with fan frame |
| 08/02/2007 | US20070177969 Method of power generation from pressure control stations of a natural gas distribution system |
| 08/01/2007 | EP0789976B1 Improved air control system for an air bed |
| 07/31/2007 | US7249929 Bleed housing |
| 07/25/2007 | EP1809908A1 Variable geometry compressor |
| 07/25/2007 | CN2926598Y Air cooler |
| 07/25/2007 | CN101004182A Fan system, and control device |
| 07/24/2007 | US7248004 Cooling fan, in particular for motor vehicles |
| 07/24/2007 | US7246490 Internal combustion engine including a compressor and method for operating an internal combustion engine |
| 07/19/2007 | US20070166149 Vane system equipped with a guiding mechanism for centrifugal compressor |
| 07/18/2007 | CN101002025A Dynamically controlled compressors |
| 07/17/2007 | US7245097 Motor control system and vacuum pump equipped with the motor control system |
| 07/17/2007 | US7244106 Process and device for flow control of an electrical motor fan |
| 07/12/2007 | WO2007078667A1 Ported shroud with filtered external ventilation |