Patents
Patents for F04D 27 - Control, e.g. regulation, of pumps, pumping nstallations or pumping systems specially adapted for elastic fluids (9,590)
08/1980
08/12/1980US4216672 Apparatus for detecting and indicating the occurrence of a gas turbine engine compressor stall
07/1980
07/15/1980US4212599 Method and device for regulating the output quantity of compressed medium of single and multi-stage screw and turbo compressor systems
07/15/1980US4212585 Centrifugal compressor
07/09/1980EP0012895A1 Centrifugal vapor compressor and a diffuser control therefor
07/08/1980USRE30329 Method and apparatus for antisurge protection of a dynamic compressor
06/1980
06/10/1980US4207031 Dual speed rotary vane pump
06/03/1980US4205941 Methods and apparatuses for avoiding surging phenomena in compressors
05/1980
05/20/1980US4203701 Surge control for centrifugal compressors
04/1980
04/08/1980CA1075159A1 Supersonic compressor with off-design performance improvement
04/01/1980US4196472 Stall control apparatus for axial flow compressors
03/1980
03/04/1980US4191511 Compressor control
02/1980
02/12/1980CA1071434A1 Stall detector for a gas turbine engine
01/1980
01/08/1980US4182117 Diffuser vane cusp bleed aperture with automatic ejector control device
12/1979
12/11/1979US4177649 Surge suppression apparatus for compressor-driven system
12/04/1979US4177023 Pneumatic system for smoothing discharge pressure from air
11/1979
11/27/1979US4175382 Steam power plant with pressure-fired boiler
10/1979
10/23/1979US4171931 Apparatus for abating noise in axial blower
10/03/1979EP0004448A1 Method and apparatus for control of a cooling system
08/1979
08/21/1979US4164845 Rotary compressors
08/07/1979US4164035 Surge control for variable speed-variable geometry compressors
08/07/1979US4164034 Compressor surge control with pressure rate of change control
08/07/1979US4164033 Compressor surge control with airflow measurement
07/1979
07/10/1979CA1058129A1 Control system for variable capacity gas compressor
06/1979
06/19/1979US4158527 Adjustable speed drive system for centrifugal fan
06/13/1979EP0002360A1 Method for automatically limiting one controlled variable of a multivariable system and apparatus for antisurge protection of a dynamic compressor
05/1979
05/29/1979US4156578 Control of centrifugal compressors
05/01/1979US4151725 Control system for regulating large capacity rotating machinery
04/1979
04/17/1979CA1052753A2 Control system for helical screw compressor
04/03/1979US4147473 Method of regulating multistage axial compressor output and an axial compressor for carrying same into effect
03/1979
03/20/1979CA1050775A1 Compressor bleed system
03/06/1979US4142838 Method and apparatus for preventing surge in a dynamic compressor
02/1979
02/13/1979US4139328 Method of operating large turbo compressors
02/06/1979US4137710 Surge detector for gas turbine engines
01/1979
01/23/1979US4135854 Control system for variable pitch axial fan for utility boiler
01/23/1979US4135850 Ventilator system with adjustable damper fan
12/1978
12/19/1978CA1044672A1 Ventilator system with adjustable damper fan
12/05/1978US4128831 Device for the continuous monitoring of oil leaks on oxygen compressors
10/1978
10/31/1978US4123196 Supersonic compressor with off-design performance improvement
10/31/1978US4122668 Iris control for gas turbine engine air brake
10/10/1978US4119391 Methods and systems for controlling the operation of means for compressing a fluid medium and the corresponding networks
10/10/1978CA1040051A1 Method and systems for controlling the operation of means for compressing a fluid medium and the corresponding networks
09/1978
09/26/1978US4116584 Device for extending the working range of axial flow compressors
09/26/1978US4116318 Fluid flow restriction path in viscous fluid clutch
08/1978
08/01/1978US4103544 Turbine engine surge detector
07/1978
07/25/1978US4102604 Method and apparatus for noninteracting control of a dynamic compressor having rotating vanes
07/25/1978US4102595 Bleed valve control system
06/1978
06/13/1978USRE29667 Compressor surge sensor
05/1978
05/02/1978US4086761 Stator bypass system for turbofan engine
04/1978
04/25/1978US4086022 Gas turbine engine with improved compressor casing for permitting higher air flow and pressure ratios before surge
04/25/1978US4085594 Control system for cooling tower fans
04/18/1978US4084406 Chiller controls
03/1978
03/07/1978US4077743 Compression machinery method and apparatus
12/1977
12/20/1977US4063848 Centrifugal compressor vaneless space casing treatment
12/06/1977US4060980 Stall detector for a gas turbine engine
11/1977
11/01/1977US4055994 Method and a device for detecting the stall condition of an axial flow fan or compressor
11/01/1977US4055946 Twin-spool gas turbine power plant with means to spill compressor interstage airflow
09/1977
09/27/1977US4050853 Rain-responsive control
09/20/1977US4049363 Axial flow fan with adjustable blades
09/06/1977US4046490 Method and apparatus for antisurge protection of a dynamic compressor
08/1977
08/02/1977US4039267 Method and apparatus for starting a blower
04/1977
04/05/1977US4015436 Method for controlling the capacity of a blower and a device for controlling the pressure in a liquefied gas storage tank utilizing said method
03/1977
03/15/1977US4011904 Combination heat exchanger and blower
03/15/1977US4011735 Blower system and control system therefor
02/1977
02/22/1977US4008977 Compressor bleed system
02/01/1977US4005612 Preloaded anti-rattle device
12/1976
12/14/1976US3996964 Control apparatus particularly for a plurality of compressor bleed valves of a gas turbine engine
11/1976
11/30/1976US3994623 Method and apparatus for controlling a dynamic compressor
11/30/1976US3994617 Control apparatus particularly for a plurality of compressor bleed valves of a gas turbine engine
11/23/1976US3993414 Supersonic compressors
11/23/1976US3992883 Fan drive systems
10/1976
10/26/1976US3987998 Servo valve control system
09/1976
09/07/1976US3979655 Control system for controlling a dynamic compressor
08/1976
08/31/1976USRE28946 Blower system and control system therefor
08/31/1976US3977184 Electric power plant having a gas turbine with an improved wide range surge protection system
08/24/1976US3976394 Interstage bleed assembly
08/24/1976US3976390 Means for controlling flow instability in centrifugal compressors
08/17/1976US3974645 Control apparatus for matching the exhaust flow of a gas turbine employed in a combined cycle electric power generating plant to the requirements of a steam generator also employed therein
08/10/1976US3973657 Variable speed fan for heat exchangers
08/03/1976US3972642 Gas turbine
08/03/1976US3972641 Compressor bleed sensor and control for turbine type power plants
06/1976
06/22/1976US3964257 Device for boosting and bleeding a gas turbine engine
06/15/1976US3963367 Turbine surge detection system
05/1976
05/18/1976US3958100 Means for preventing heat build-up in a wall-mounted room ventilator
05/18/1976US3957392 Self-aligning vanes for a turbomachine
04/1976
04/20/1976US3951566 Axial-flow fan with by-pass pipe or pipes
03/1976
03/23/1976US3945762 Hydraulic guide-wheel adjusting mechanism
03/23/1976US3945759 Bleed air manifold
02/1976
02/10/1976US3937588 Emergency control system for gas turbine engine variable compressor vanes
01/1976
01/27/1976US3935558 Surge detector for turbine engines
01/06/1976US3930742 Velocity probe for compressor surge control
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