Engine speed control in propeller pitch control systems

Details Engine speed control in propeller pitch control systems Engine speed control in propeller pitch control systems

B - Operations, Transporting

64

C

121/103

B64C 11/38 (2006.01)

Patent

CA 1227386

- 19 - Abstract Engine Speed Control in Propeller Pitch Control Systems In a propeller pitch control system, a selector 10 isolates engine (42) speed control in one of two engine governor (175 and 300) systems. The selector is input with fluid pressure signals from a pair of pilot valves (215 and 325), each operated by a corresponding one of the governors. The selector passes the signal of lowest magnitude to an actuator 40 which sets blade pitch in accordance with the magnitude of the signal whereby the governor pro- viding such signal (through its associated pilot valve) controls engine speed independently of the other governor.

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