Patents
Patents for F04D 27 - Control, e.g. regulation, of pumps, pumping nstallations or pumping systems specially adapted for elastic fluids (9,590)
04/1996
04/07/1996CA2133793A1 Inter compressor duct variable geometry annular diffuser/bleed valve
04/02/1996USRE35199 Air vent closure system
03/1996
03/27/1996CN1119249A Rotary machine controller and control method thereof
03/20/1996EP0702198A2 Air conditioner
03/20/1996CN1118876A Surge detection device and turbomachinery therewith
03/14/1996WO1996008066A1 Circuit for operating an electric motor
03/14/1996DE4432058A1 Schaltung zum Betreiben eines Elektromotors Circuit for operating an electric motor
02/1996
02/28/1996EP0698739A1 Bleed air apparatus for turbomachine
02/28/1996EP0593632B1 Radial fan
02/22/1996WO1996005438A1 Bleed valve
02/14/1996EP0696678A2 Prevention of parameter excursions in gas turbines
02/13/1996US5490760 Multishaft geared multishaft turbocompressor with return channel stages and radial expaner
02/09/1996CA2154404A1 Prevention of parameter excursions in gas turbines
01/1996
01/24/1996CN1115363A Pressed air supplying device
01/17/1996CN1115011A Turbomachinery with variable angle fluid guiding devices
01/16/1996US5484261 System for regulating air supply conditions of a turbo shaft machine
01/03/1996EP0690235A2 Method and apparatus for evacuating vacuum system
01/02/1996US5479818 Process for detecting fouling of an axial compressor
12/1995
12/27/1995EP0688400A1 Anti-stall tip treatment means
12/26/1995US5479557 Circuit arrangement for power supply of a fan and/or battery by solar generator in a motor vehicle
12/26/1995US5478275 Radial fan
12/26/1995US5478214 Compact redundant cooling module and method
12/26/1995US5477673 Handling bleed valve
12/13/1995EP0686774A1 Turbomachinery with variable angle fluid guiding devices
12/12/1995US5474417 Cast casing treatment for compressor blades
12/06/1995EP0685653A2 Method and apparatus for surge control
12/06/1995EP0685652A2 Surge detection device and turbomachinery therewith
11/1995
11/30/1995DE19517113A1 Equipment and process to control multistage turbine
11/24/1995CA2149578A1 Turbomachinery with variable angle fluid guiding devices
11/23/1995DE4417468A1 Gas laser appts.
11/22/1995CN1112190A Gas turbine apparatus and method of operating same
11/20/1995CA2149576A1 Surge detection device and turbomachinery therewith
11/15/1995EP0681540A1 Hovercraft.
11/14/1995US5466118 Centrifugal compressor with a flow-stabilizing casing
11/08/1995CN1111320A Exhaust gas turbocharger
10/1995
10/31/1995US5461860 for an internal combustion engine
10/17/1995US5458457 Turbomachine
10/11/1995EP0676545A2 Surge control method and apparatus
10/08/1995CA2146583A1 Method and apparatus for measuring the distance of a turbocompressor's operating point to the surge limit interface
10/05/1995WO1995026471A1 System including a vacuum pump, measuring device and supply, control, operating and display equipment
10/05/1995DE4410903A1 System mit Vakuumpumpe, Meßgerät sowie Versorgungs-, Steuer-, Bedienungs- und Anzeigeeinrichtungen System with vacuum pump, meter and supply, control, monitoring and display
09/1995
09/28/1995WO1995025894A1 Process for controlling the driving voltage of a fan in electrical equipment
09/21/1995DE4410735A1 Asynchronous motor speed control, esp. for combustion applications
09/21/1995DE4408805A1 Active fan monitoring for computer ventilators
09/21/1995DE19506790A1 Operating efficiency optimisation system for radial compressor
09/14/1995DE4408442A1 Circuit to control speed of universal motor e.g for vehicle air conditioner
09/12/1995US5450316 Electronic process controller having password override
09/12/1995US5449275 Controller and method for operation of electric fan
09/12/1995US5448881 Gas turbine engine control based on inlet pressure distortion
09/12/1995CA2119900A1 Automatic water pumping system
09/06/1995EP0670425A1 Method of surge detection
09/05/1995US5447414 In an air handling system
08/1995
08/30/1995CN1107556A NC adjusting and metering fan
08/29/1995US5445215 Fan assembly with heat sink
08/22/1995US5443368 Turbomolecular pump with valves and integrated electronic controls
08/09/1995EP0666423A1 Surge detection system using engine signature
08/03/1995DE4438995A1 Fan for cooling system of engine of construction machinery
08/03/1995DE4418071C1 Drive unit with electric motor for driving cooling fan of motor vehicle
08/02/1995CN1106112A Adjusting method of moving efficiency of main axial-flow mine ventilator
08/01/1995US5437539 Apparatus for the dynamic control of rotating stall and surge in turbo machines and the like
07/1995
07/27/1995DE4402137A1 Fan generating fresh air used in exhaust of IC engine
07/12/1995CN2203374Y Adjustable wind rate blower
07/11/1995US5432696 Apparatus for and method of controlling a fan utilizing a branching phenomemon occurring in a solution of a one parameter function
07/11/1995US5431533 For a rotor supported for rotary motion
07/05/1995EP0661426A1 Gas turbine apparatus and method of operating same
06/1995
06/29/1995WO1995017607A1 Non-recoverable surge and blowout detection in gas turbine engines
06/27/1995US5426975 Method and apparatus for determining the total flow rate in a ventilation installation
06/22/1995DE4343168A1 Two-coil ventilator fan drive motor
06/15/1995WO1995016117A1 Closed loop stator vane control
06/07/1995CN1103467A NC serial operating mode change centrifugal fan
06/06/1995US5422824 Computerized diagnostic system for microprocessor-based, portable machinery
06/01/1995DE4340580A1 Regulator for heating and air conditioning system in motor vehicle
05/1995
05/24/1995EP0654163A1 Process and device for monitoring vibrational excitation of an axial compressor
05/24/1995EP0654162A1 Process for detecting fouling of an axial compressor
05/24/1995EP0654161A1 Process and device for monitoring and for controlling of a compressor
05/18/1995WO1995013215A1 Rotor blade pitch change control method and device
05/10/1995EP0652374A1 System for controlling operation of turbo type fluid machinery
05/10/1995EP0652154A1 Control method and device of the variable pitch of rotor blades
05/10/1995EP0652137A1 Power supply for ventilator and/or an accumulator using a solargenerator in a vehicle
05/10/1995EP0651859A1 Rotary compressor with stepped cover contour.
05/10/1995EP0628149A4 Control system for an air conditioning/refrigeration system.
05/09/1995US5412977 Turbo machine with an axial dry gas seal
04/1995
04/26/1995CN2195637Y Multi-function emergency electric fan
04/20/1995WO1995010709A1 Axially opening cylindrical bleed valve
04/20/1995WO1995010692A1 Active tip flow bypass in stator vane channel
04/13/1995WO1995010078A1 Method and apparatus for supplying a pressurized compressible medium to a network
04/04/1995US5403149 Stabailization device for extending the characteristic map of a compressor
04/04/1995US5402632 In a dual spool gas turbine engine
03/1995
03/29/1995CN2193451Y Freezing commpressed air drier cold medium overheat protecting device
03/16/1995DE4431460A1 Fan
03/15/1995CN2192099Y Speed regulator for domestic electric fan
03/08/1995CN1027832C 背压阀 Backpressure valve
02/1995
02/23/1995WO1995005541A1 Control method and apparatus for a centrifugal chiller using a variable speed impeller motor drive
02/15/1995EP0638727A1 Compressor and its method of operation
02/15/1995EP0638725A1 Device for secondary air bleeding from an axial compressor
02/15/1995CN1098775A Method of controlling starting of compressor in air conditioner
02/09/1995WO1995004225A1 Process and device for tapping a partial stream from a stream of compressed gas
01/1995
01/31/1995US5385012 In a gas turbine engine
01/12/1995DE4423736A1 Method for regulating the power of a centrifugally operating machine which is driven by an electric motor
01/10/1995US5380151 Axially opening cylindrical bleed valve
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