Matches 1 - 19 out of 19
Match Document Document Title
7003426 Method and system for detecting precursors to compressor stall and surge  
A method and system for detecting precursors to compressor stall and surge in which at least one compressor parameter is monitored to obtain raw data representative of said at least one compressor...
6532433 Method and apparatus for continuous prediction, monitoring and control of compressor health via detection of precursors to rotating stall and surge  
An apparatus for monitoring the health of a compressor having at least one sensor operatively coupled to the compressor for monitoring at least one compressor parameter, a processor system...
6231306 Control system for preventing compressor stall  
A control system for preventing a compressor stall in a gas turbine engine includes means for sensing an aerodynamic signal indicative of an impending stall condition. The weak stages of the...
5242265 Aircraft pitch change mechanism  
A system for changing pitch in aircraft propfans is disclosed, in which a motor, located at a stationary position, changes pitch of the blades by of a gear train. Three features of the system are...
5174716 Pitch change mechanism  
The invention concerns a pitch change mechanism for an aircraft propeller in which a common ring gear (51) changes pitch of all propeller blades on a given rotor simultaneously. Motion of the ring...
4692093 Ram air turbine  
Apparatus and methods for adjusting the pitch of a fluid reactive blade member carried upon a rotor in response to a speed difference between the rotor and a reference speed shaft.
4490093 Windpower system  
A windpower system includes a support and a turbine having a shaft rotatively mounted to the support. The turbine has variable pitch blades whose pitch is controlled by the differential motion of a...
3910721 Pitch varying mechanisms for bladed rotors  
In a variable pitch fan gas turbine engine the pitch varying mechanism is, for example, a gear mechanism and a clutch is provided for locking the mechanism when an engine has to be shut down so...
3361216 Damping devices  
3146830 Prime mover monitoring system  
2970652 Control mechanism for ram air turbine  
2961052 Speed control system for helicopters  
2947364 Propeller-driving compound gas-turbine engine for aircraft  
2925867 Control systems for aircraft engines  
2880810 Blade positioner  
2860712 Control for aircraft power plant  
2851113 Control system for a variable pitch propeller and its driving turbines  
2826255 Propeller drives  
2809701 Control for helicopter multiple speed transmission  
Matches 1 - 19 out of 19