Patents
Patents for F04D 27 - Control, e.g. regulation, of pumps, pumping nstallations or pumping systems specially adapted for elastic fluids (9,590)
06/1986
06/10/1986US4594050 Apparatus and method for detecting surge in a turbo compressor
05/1986
05/28/1986CN85202876U Electro-controlled intermittently running electric fan
05/27/1986US4590759 Method and apparatus for improving acceleration in a multi-shaft gas turbine engine
05/20/1986US4589827 Electric motor fan
05/06/1986US4586870 Method and apparatus for regulating power consumption while controlling surge in a centrifugal compressor
04/1986
04/30/1986EP0179658A2 Surge control system
04/15/1986US4581900 Method and apparatus for detecting surge in centrifugal compressors driven by electric motors
04/15/1986US4581888 In a gas turbine engine having a compressor
04/08/1986US4580947 Method of controlling operation of a plurality of compressors
03/1986
03/26/1986EP0175476A2 Capacity control systems for inverter-driven centrifugal compressor based water chillers
03/26/1986EP0175445A1 Compressor surge control
03/25/1986US4578756 Adaptive electrostatic engine diagnostics
03/25/1986US4578605 Electric motor with a system for monitoring speed
03/19/1986EP0174892A1 Bypass valve for a compressor
03/19/1986CN85201615U Control device for gradually reducing the wind of electric fan
03/12/1986EP0174255A1 Valve ring structure for a compressor bypass valve
03/11/1986US4574585 Compressor bleed valve
02/1986
02/18/1986US4571151 Liquid injection control in multi-stage compressor
02/18/1986US4570849 Fan drive, particularly for cooling installation of vehicles
01/1986
01/21/1986US4565488 Compressor
12/1985
12/31/1985US4562531 Integrated control of output and surge for a dynamic compressor control system
12/24/1985US4560319 Method and apparatus for controlling at least two parallel-connected turbocompressors
12/17/1985US4558992 Pump device
12/17/1985US4558987 Apparatus for regulating axial compressors
11/1985
11/27/1985EP0162652A2 System, apparatus, and method for detecting and controlling surge in a turbo compressor
11/21/1985WO1985005046A1 Device for stirring or pumping
11/05/1985US4550695 Fan device for internal combustion engine
11/05/1985US4550564 Engine surge prevention system
10/1985
10/15/1985US4546939 Energy efficient ECS powered by a variable voltage/variable frequency power system
10/15/1985US4546618 Capacity control systems for inverter-driven centrifugal compressor based water chillers
10/08/1985US4545198 Gas turbine engine control system
09/1985
09/24/1985US4543036 Fluid compressor control and operation
09/24/1985CA1194009A1 Vented compressor inlet guide
09/10/1985US4540335 Controllable-pitch moving blade type axial fan
08/1985
08/07/1985EP0150729A2 Method and apparatus for improving acceleration in a multi-shaft gas turbine engine
08/06/1985US4533293 Method of improving the part-load behavior of a turbo machine, and a compressor or pump adapted for use of such method
07/1985
07/16/1985US4528844 Stall/debris discriminating ionic engine diagnostics
07/10/1985EP0148101A1 Method and apparatus for the control of a centrifugal compressor
05/1985
05/29/1985EP0142713A2 Ventilator drive for a cooling plant, especially for rail vehicles
05/29/1985EP0142679A2 Airflow control apparatus
05/28/1985US4519240 Electrostatic gas turbine surge/stall detection
05/21/1985US4517803 Turbocharger compressor valve
05/21/1985CA1187377A1 Check valve
05/08/1985EP0140499A2 Compressor surge control
05/07/1985US4515538 Ceiling fan
05/07/1985US4515515 Compressor servomechanical regulator
05/02/1985EP0139378A2 Dynamic compressor control system
04/1985
04/17/1985EP0137614A2 Compressor air bleed overide control system
04/17/1985EP0137156A1 Airflow control system
04/09/1985CA1185344A1 Centrifugal compressor surge control system
03/1985
03/27/1985EP0134981A2 Liquid injection control in multi-stage compressor
03/12/1985US4503684 Control apparatus for centrifugal compressor
03/05/1985US4502275 Compressor air bleed override control system
02/1985
02/19/1985USRE31835 Pneumatic supply system having variable geometry compressor
02/19/1985US4499755 Emitted ion surge/stall detection
02/13/1985EP0132487A2 Process for controlling at least two turbo compressors mounted in parallel
02/05/1985US4497445 Diffusion apparatus
01/1985
01/15/1985US4494006 Method and apparatus for controlling a multicompressor station
01/15/1985US4493608 Surge control in compressor
01/02/1985EP0129888A2 Air flow controlling apparatus
12/1984
12/27/1984CA1179997A Screw compressor slide valve engine rpm tracking system
12/04/1984US4486142 Method of automatic limitation for a controlled variable in a multivariable system
10/1984
10/31/1984EP0123515A1 Compressor apparatus
10/30/1984US4479755 For controlling the fluid boundary layer in a compressor
10/24/1984EP0122892A1 Method of producing a guide vane ring for a return flow passage in axial fans
09/1984
09/11/1984US4470256 Fluid compressor
09/04/1984CA1173805A1 Compressor
08/1984
08/28/1984US4468171 Method of controlling air flow rate of fan
08/07/1984US4464720 Centrifugal compressor surge control system
08/07/1984US4463552 Combined surge bleed and dust removal system for a fan-jet engine
07/1984
07/31/1984US4462561 Energy efficient ECS powered by a variable voltage/variable frequency power system
07/31/1984US4462217 Process and apparatus for the control of a volume of fluid moving through a duct system
07/24/1984US4461340 Oil cooler
07/24/1984US4461145 Stall elimination and restart enhancement device
07/17/1984US4460310 Centrifugal vapor compressor
07/17/1984US4459802 In a turbo-machine
06/1984
06/05/1984US4452585 Combustion air blower surge control for a melting furnace
06/05/1984CA1168550A1 Check valve
05/1984
05/22/1984US4449358 Method and apparatus for promoting a surge condition in a gas turbine
05/16/1984EP0108642A1 Pump device
04/1984
04/11/1984EP0046173B1 Rotary machine, particularly radial-flow compressor
03/1984
03/27/1984US4439095 Combustion air fan
03/21/1984EP0103042A1 Fan comprising automatically adjustable blades about its longitudinal axis to avoid undesirable rotational speed
03/06/1984CA1163252A1 Unloading means for a gas compressor
02/1984
02/28/1984CA1162748A1 Integrated multiplane actuator system for compressor variable vanes and air bleed valve
02/21/1984US4432212 Hermetic turbo-refrigerator apparatus
02/14/1984US4431374 Vortex controlled radial diffuser for centrifugal compressor
02/14/1984US4430855 Process for detection of rotating stall
02/01/1984EP0099847A1 Diffuser throttle ring control
02/01/1984EP0099813A2 Method for the treatment of combustible gas, and installation for carrying out the method
02/01/1984EP0099615A2 Centrifugal fan with flow control
01/1984
01/31/1984US4428714 Rotary apparatus
01/31/1984US4428194 Compressor bleed air control apparatus and methods
01/03/1984CA1159900A1 Compressor load control for an auxiliary power unit
11/1983
11/15/1983US4415310 System for cooling a gas turbine by bleeding air from the compressor
11/08/1983US4413946 Vented compressor inlet guide
11/02/1983EP0092955A2 Method and apparatus for controlling the fluid boundary layer in a compressor
10/1983
10/05/1983EP0090514A1 A temperature tracking D.C. motor speed controlled fan
09/1983
09/20/1983US4405290 Pneumatic supply system having variable geometry compressor
09/13/1983US4403920 Device for regulating the output quantity of a compressed medium
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