| Patents for F01D 7 - Rotors with blades adjustable in operation; Control thereof (641) |
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| 06/09/1998 | US5762474 Variable-pitch propeller assembly enabling pitch reversal during operation |
| 11/19/1997 | EP0656085B1 Bridge construction |
| 11/11/1997 | US5685694 Air driven turbine having a blade pitch changing mechanism including overspeed protection |
| 11/06/1997 | WO1997041355A1 Impeller |
| 05/15/1997 | WO1997017255A1 System for controlling a coaxial reversing propeller fan |
| 01/21/1997 | US5595474 Pitch variation control device for the blades of a turbomachine rotor and method of operating the device |
| 11/26/1996 | CA2078738C Bridge construction |
| 10/08/1996 | US5562417 Control mechanism for RAM air turbine |
| 06/27/1996 | DE4446624A1 Verstellpropeller Variable pitch |
| 06/27/1996 | DE4446623A1 Propellerverstelleinrichtung mit Synchronelement Propeller Pitch with synchronous element |
| 06/27/1996 | DE4446622A1 Verstellpropeller mit darin angeordnetem Verstellmechanismus With variable pitch adjustment mechanism disposed therein |
| 06/20/1996 | WO1996018804A1 Variable-pitch propeller assembly enabling pitch reversal during operation |
| 01/02/1996 | US5481648 Fuzzy logic method and apparatus for changing the position of turbine blades via an induction motor, brake and a position lock. |
| 12/26/1995 | US5478203 Blade pitch change mechanism |
| 11/29/1995 | EP0684365A2 Blade pitch change mechanism |
| 09/26/1995 | US5452988 Blade pitch change mechanism |
| 07/18/1995 | CA2013856C Pitch change actuation system |
| 06/20/1995 | US5425152 Bridge construction |
| 06/07/1995 | EP0656085A1 Bridge construction |
| 05/18/1995 | WO1995013215A1 Rotor blade pitch change control method and device |
| 05/16/1995 | US5415523 Control system for variable-pitch boat propeller |
| 05/10/1995 | EP0652154A1 Control method and device of the variable pitch of rotor blades |
| 02/21/1995 | US5391055 Propeller pitch change mechanism with impulse turbines |
| 06/15/1994 | CN1025062C Axial turbine |
| 05/18/1994 | EP0597037A1 Pitch stop assembly for variable pitch propulsor |
| 03/30/1994 | EP0589339A1 Regulation for the propulsion of a boat with a motor and a controllable pitch propeller |
| 03/16/1994 | CN1083885A Bridge construction |
| 03/03/1994 | WO1994004756A1 Bridge construction |
| 02/01/1994 | US5282719 Quad mode fan pitch actuation system for a gas turbine engine |
| 01/25/1994 | US5281094 Electromechanical apparatus for varying blade of variable-pitch fan blades |
| 01/20/1994 | DE4231474C1 Supercharged IC engine with user turbine - has exhaust gas conduit downstream of turbocharger fed to turbine in drive connection with engine crankshaft |
| 10/05/1993 | US5249924 RAM air turbine |
| 09/07/1993 | US5242265 Aircraft pitch change mechanism |
| 07/22/1993 | CA2080268A1 Air block |
| 07/08/1993 | DE4200180A1 Wind power generator with co-rotating variability compensation device - employs type of special multifunction servomotor to drive grating rotor and jointed flap as single unit |
| 05/25/1993 | US5213471 Propeller pitch control |
| 04/27/1993 | US5205712 Variable pitch fan gas turbine engine |
| 04/07/1993 | CN1070717A Axial flow turbine |
| 04/06/1993 | US5199850 Pitch stop assembly for variable pitch propulsor |
| 03/24/1993 | EP0532907A1 Axial turbine |
| 02/18/1993 | WO1993003258A1 Pitch stop assembly for variable pitch propulsor |
| 02/16/1993 | US5186608 Hydraulic low pitch switch for propeller pitch change system |
| 02/02/1993 | US5183387 Fault-tolerant apparatus for controlling blade pitch |
| 01/07/1993 | EP0418239B1 Flow machine |
| 12/29/1992 | US5174716 Pitch change mechanism |
| 12/17/1992 | DE4119657A1 Electromagnetically adjustable radial compressor for exhaust turbo-supercharger - has blades fitted to spring-biased inner coaxial shaft subject to progressive attraction by external electromagnet |
| 10/20/1992 | US5156648 Prop-fan pitch-change mechanism |
| 10/06/1992 | US5152668 Pitch change mechanism for prop fans |
| 07/07/1992 | US5127801 Impeller for an axial flow fan |
| 06/16/1992 | US5122036 Ram air turbine with power controller and method of operation |
| 04/15/1992 | EP0409908B1 Impeller for an axial flow fan |
| 03/05/1992 | CA2048799A1 Propeller pitch control |
| 10/17/1991 | DE4015207C1 Bearing for aircraft engine rotor blade - incorporates torsional tie rod in compact design |
| 10/08/1991 | US5054999 Flow machine |
| 08/13/1991 | US5039278 Power turbine ventilation system |
| 03/27/1991 | EP0418239A1 Flow machine. |
| 02/26/1991 | US4995786 Dual variable camber compressor stator vane |
| 01/30/1991 | EP0409908A1 Impeller for an axial flow fan. |
| 12/25/1990 | US4979874 In an axial flow gas turbine engine |
| 11/06/1990 | US4968217 Variable pitch arrangement for a gas turbine engine |
| 10/24/1990 | EP0394183A1 Pitch change actuation system |
| 10/11/1990 | CA2010151A1 Power turbine ventilation system |
| 06/19/1990 | US4934901 Pitch change actuation system |
| 05/22/1990 | US4927329 Aircraft engine unducted fan blade pitch control system |
| 03/20/1990 | US4909031 Combined multi-speed jet engine for the drive of airplanes and space vehicles |
| 12/14/1989 | WO1989012172A1 Impeller for an axial flow fan |
| 09/26/1989 | CA1260401A1 Power frame |
| 09/05/1989 | US4863352 Blade carrying means |
| 08/29/1989 | CA1258846A1 Aircraft propeller system |
| 05/02/1989 | CA1253351A1 Blade carrying means |
| 04/06/1989 | WO1989002974A1 Flow machine |
| 04/06/1989 | DE3731902A1 Multiple-aerofoil propeller for gaseous fluids |
| 09/20/1988 | US4772182 Rotor vane adjusting device |
| 09/15/1988 | DE3805586A1 Fangehaeuse mit einer vorrichtung zur montage und demontage der fangschaufeln Fan casing with a device for mounting and dismounting the start shoveling |
| 08/31/1988 | EP0280639A1 Pitch changing mechanism for fan blades |
| 08/30/1988 | US4767270 Hoop fan jet engine |
| 08/10/1988 | EP0277906A2 Composite disk for supporting fan blades |
| 08/09/1988 | US4762466 Carrier ring for a propeller blade system |
| 07/19/1988 | US4758129 Power frame |
| 05/11/1988 | EP0267097A1 Blade-carrying ring for a fan with a large diameter |
| 05/10/1988 | US4743163 Ram air turbine control system |
| 04/19/1988 | US4738591 Gas turbine engine |
| 04/19/1988 | US4738590 Blade pitch varying mechanism |
| 04/19/1988 | US4738589 Propeller module for an aero gas turbine engine |
| 03/29/1988 | US4734007 Fan casing and fan blade loading/unloading |
| 03/22/1988 | US4732538 Blade hub air scoop |
| 01/12/1988 | US4718823 Pitch changing mechanism for fan blades |
| 01/07/1988 | EP0250923A2 Adjustment mechanism |
| 01/05/1988 | US4717610 Composite disk for supporting fan blades |
| 01/05/1988 | US4717312 Variable-pitch bladed rotors |
| 12/02/1987 | EP0247176A1 Ram air turbine control system |
| 11/11/1987 | EP0244515A2 Hoop fan jet engine |
| 11/10/1987 | US4704862 Ducted prop engine |
| 11/03/1987 | US4704067 Helicoidal propeller pitch control mechanism |
| 10/20/1987 | US4701104 Ram air turbine |
| 09/01/1987 | CA1226228A1 Counterrotating power turbine |
| 06/09/1987 | US4671737 Blade pitch changing mechanism |
| 06/04/1987 | WO1987003332A1 Ram air turbine control system |
| 02/04/1987 | EP0210175A1 Ram air turbine |
| 01/06/1987 | US4634341 Axial flow fans |