Control system for non-linear control of a speed setting and a t

Details Control system for non-linear control of a speed setting and a t Control system for non-linear control of a speed setting and a t

1996-05-24

1998-09-22

Verdier, Christopher

Fluid reaction surfaces (i.e., impellers)

Interrelated controls for impeller and drive means

Pitch adjustment and throttle regulation with condition...

416 30, 416 31, 416 36, 416 47, B64C 1134

Patent

active

058105603

ABSTRACT:
A control system for an aircraft that controls the set speed of the propeller governor and the degree of opening of the throttle valve using a single control lever. The speed setting mechanism of the propeller governor is directly connected to the power lever by a push and pull cable, and the set speed of the propeller governor changes in proportion to the stroke of the power lever. Therefore, the propeller speed changes in proportion to the stroke of the power lever. On the other hand, the throttle valve is connected to the power lever by a nonlinear cam and a push and pull cable. Therefore, the degree of opening of the throttle valve does not change in proportion to the stroke of the power lever (i.e., the change in the degree of opening of the throttle valve has a nonlinear characteristic), and the engine output power changes in the nonlinear manner with respect to the change in the propeller speed. By setting the nonlinear characteristic in the change in the engine output power with respect to the change in the propeller speed, an optimum relationship, between the engine speed and engine output power, for the aerodynamic characteristics of the aircraft can be obtained.

REFERENCES:
patent: 2830778 (1958-04-01), Greenland et al.
patent: 3155165 (1964-11-01), Boyer et al.
patent: 4270501 (1981-06-01), Breen et al.
patent: 4626170 (1986-12-01), Dorsch
patent: 4693670 (1987-09-01), Hawener et al.

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