| 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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| 09/13/1983 | US4403912 Integrated multiplane actuator system for compressor variable vanes and air bleed valve |
| 09/07/1983 | EP0012895B1 Centrifugal vapor compressor and a diffuser control therefor |
| 08/31/1983 | EP0087197A1 Drive and bearing for a turbo-compressor |
| 08/16/1983 | US4399548 Compressor surge counter |
| 08/10/1983 | EP0085245A1 A capacity control device for a compressor in a refrigerating system |
| 07/06/1983 | EP0083199A2 Surge control of a fluid compressor |
| 07/05/1983 | US4391093 Temperature-responsive actuator |
| 06/29/1983 | EP0082578A1 Turbomachine such as a compressor or pump comprising means for improving its part-load behaviour |
| 06/28/1983 | US4390318 Apparatus for operating shut-off members in gas turbine engines, particularly in turbojet engines |
| 06/21/1983 | US4389158 Turbo compressor having a surge suppressing arrangement |
| 05/24/1983 | US4384818 Method and apparatus for limiting the end thrust of turbo compressors by means of a blowoff control |
| 04/26/1983 | US4380893 Compressor bleed air control apparatus and method |
| 04/13/1983 | EP0076668A2 Turbo-machines with bleed-off means |
| 03/29/1983 | US4378199 Variable speed drive |
| 03/29/1983 | US4378194 Centrifugal compressor |
| 03/08/1983 | US4375748 Engine system with exhaust turbine supercharger |
| 02/23/1983 | EP0072701A2 Apparatus and method for controlling mass flow rate in rotary compressors |
| 02/15/1983 | US4373544 Check valve |
| 02/09/1983 | EP0071416A2 A method of operating a combustion apparatus having a fired heater |
| 01/25/1983 | US4370560 Compressor load control for an auxiliary power unit |
| 01/25/1983 | CA1140236A1 Control system for regulating large capacity rotating machinery |
| 01/18/1983 | US4369017 Centrifugal fan |
| 01/11/1983 | US4368005 Rotary compressors |
| 01/11/1983 | CA1139400A1 Adjustable surge and capacity control system |
| 01/11/1983 | CA1139280A1 Waste gas recovery systems |
| 12/14/1982 | US4363596 Method and apparatus for surge detection and control in centrifugal gas compressors |
| 12/07/1982 | US4362462 Method of intermediate cooling of compressed gases |
| 12/01/1982 | EP0065855A1 Auxiliary power system for use with a gas turbine engine |
| 10/26/1982 | US4355948 Adjustable surge and capacity control system |
| 10/12/1982 | CA1133609A1 Fan control system for cooling apparatus |
| 09/01/1982 | EP0059061A2 Compressor bleed air control apparatus and methods |
| 08/25/1982 | EP0058305A1 Surge preventing turbocompressor control |
| 08/24/1982 | US4345878 Apparatus for changing belts |
| 08/17/1982 | US4344282 Compressor bleed system |
| 08/04/1982 | EP0056888A1 Unloading means for a gas compressor |
| 08/03/1982 | CA1129041A1 Compressor surge control |
| 04/14/1982 | EP0049655A1 Gas turbine cooling device with air take-off from the compressor |
| 04/06/1982 | CA1121487A1 Compressore surge control |
| 03/03/1982 | EP0046698A1 Means and method for detecting rotating stall |
| 03/02/1982 | CA1119140A1 Centrifugal vapor compressor and a diffuser control therefor |
| 02/24/1982 | EP0046173A1 Rotary machine, particularly radial-flow compressor |
| 02/23/1982 | CA1118735A1 Adjustable speed drive system for centrifugal fan |
| 02/16/1982 | US4315714 Rotary compressors |
| 01/27/1982 | EP0044564A1 Turbo compressor having a surge suppressing arrangement |
| 01/19/1982 | CA1116419A1 Bleed valve control circuit |
| 01/13/1982 | EP0043452A2 Regulation device for axial-flow compressors |
| 01/12/1982 | US4309871 Control apparatus for controlling surge in air compressor-driven system |
| 01/06/1982 | EP0043017A1 Guide vanes variation means for a radial compressor |
| 01/05/1982 | US4308718 Bleedoff of gas from diffusers in fluid flow machines |
| 01/05/1982 | CA1115603A1 Apparatus for detecting and indicating the occurrence of a gas turbine engine compressor stall |
| 12/29/1981 | CA1115381A1 Control system for regulating large capacity rotating machinery |
| 12/16/1981 | EP0041712A1 Turbo compressor having a surge suppressing arrangement |
| 12/02/1981 | EP0040769A1 Arrangement for lowering the surge limit of a rotary type compressor |
| 11/24/1981 | CA1113057A1 Adjustable speed drive system for centrifugal fan |
| 11/10/1981 | US4299090 Internal combustion engine with at least two exhaust gas turbochargers |
| 11/03/1981 | US4298310 Process and apparatus for prevention of surging in turbocompressors |
| 10/27/1981 | CA1111396A1 Method and apparatus for surge detection and control in centrifugal gas compressors |
| 10/20/1981 | US4295792 Apparatus for controlling operation of fluid pressure raising system |
| 10/20/1981 | CA1111008A1 Dual function compressor bleed |
| 10/14/1981 | EP0037555A2 Mixing and feeding apparatus |
| 09/16/1981 | EP0035838A1 Diffusion apparatus |
| 09/15/1981 | CA1109036A1 Method and apparatus for anti-surge protection of a dynamic compressor |
| 09/08/1981 | US4288198 Method of controlling multistage centrifugal compressor equipment |
| 09/08/1981 | CA1108539A1 Bleed valve |
| 08/25/1981 | CA1107842A1 Control system for cooling tower fans |
| 08/11/1981 | US4282719 Control system for regulating large capacity rotating machinery |
| 07/28/1981 | US4280678 Bleed valve |
| 07/21/1981 | US4279568 Vane angle control |
| 07/21/1981 | CA1105423A1 Methods and apparatuses for avoiding surging phenomena in compressors |
| 06/30/1981 | US4275987 Adjustable surge and capacity control system |
| 06/30/1981 | CA1104103A1 Fans or the like |
| 06/23/1981 | CA1103783A1 Compressor control |
| 06/16/1981 | US4273514 Waste gas recovery systems |
| 06/02/1981 | US4270885 Unloading means for a gas compressor |
| 05/05/1981 | US4265589 Method and apparatus for surge detection and control in centrifugal gas compressors |
| 05/05/1981 | CA1100320A1 Hot gas bypass control for centrifugal liquid chillers |
| 03/24/1981 | US4257733 Diffuser control |
| 03/11/1981 | EP0024823A1 Compressor surge control method and apparatus |
| 03/10/1981 | US4255089 Method of controlling series fans driving a variable load |
| 03/10/1981 | US4255080 Fans or the like |
| 03/03/1981 | US4253797 Apparatus for operating shut-off members in gas turbine engines, particularly in turbojet engines |
| 03/03/1981 | CA1096643A1 Surge detector for gas turbine engines |
| 02/24/1981 | US4252751 Fan control system for cooling apparatus |
| 02/24/1981 | US4252498 Control systems for multi-stage axial flow compressors |
| 02/24/1981 | US4251985 Bleed valve control circuit |
| 02/17/1981 | US4250743 Support device for measuring instruments in the air intake of a turbojet |
| 02/03/1981 | US4248566 Dual function compressor bleed |
| 02/03/1981 | US4248055 Hot gas bypass control for centrifugal liquid chillers |
| 01/13/1981 | CA1093318A1 Turbine engine with induced pre-swirl at compressor inlet |
| 12/16/1980 | US4239452 Blade tip shroud for a compression stage of a gas turbine engine |
| 11/11/1980 | US4232513 Pressure relief panel for aircraft powerplant |
| 11/04/1980 | US4231704 Cooling fluid bleed for axis of turbine rotor |
| 10/28/1980 | US4230437 Compressor surge control system |
| 10/21/1980 | US4228753 Fluidic controlled diffusers for turbopumps |
| 10/07/1980 | CA1087047A1 Compressor surge control |
| 09/30/1980 | US4225289 Centrifugal fan air control system |
| 09/30/1980 | CA1086512A1 Bleed valve control system |
| 09/17/1980 | EP0015535A1 Process for the interstage cooling, without condensation, of compressed gases |
| 09/16/1980 | US4222703 Turbine engine with induced pre-swirl at compressor inlet |
| 08/19/1980 | US4218191 Multi-constraint control of a compression system |