Control system for a turbo-charged diesel aircraft engine

A control system for a turbo-charged diesel aircraft engine comprising:

• a controllable pitch propeller connected to and driven by the turbo-charged diesel aircraft engine;
• governor means for controlling the rotational speed of the propeller to a set speed by adjusting the pitch of the propeller;
• speed setting means for changing the set speed of the governor means;
• throttle means for changing a set amount of fuel supplied to the engine;
• fuel supply means for supplying fuel to the engine by an amount determined in accordance with the set amount;
• control means for controlling the speed setting means and the throttle means so that the set speed and the set amount of fuel change simultaneously in accordance with the stroke of a single control lever;
• and
• wherein the control means controls the throttle means according to the stroke of the control lever in such a manner that the set amount of fuel is always smaller than a maximum limit determined in accordance with the set speed of the propeller, and wherein the maximum limit of the set amount of fuel is determined in accordance with the set speed of the propeller so that an air-fuel ration of combustion of the engine calculated based on the set amount of fuel is always higher than a predetermined lower limit value.

A control system for a turbo-charged diesel aircraft engine comprising:

• a controllable pitch propeller connected to and driven by the turbo-charged diesel aircraft engine;
• governor means for controlling the rotational speed of the propeller to a set speed by adjusting the pitch of the propeller;
• speed setting means for changing the set speed of the governor means;
• throttle means for changing a set amount of fuel supplied to the engine;
• fuel supply means for supplying fuel to the engine by an amount determined in accordance with the set amount;
• control means for controlling the speed setting means and the throttle means so that the set speed and the set amount of fuel change simultaneously in accordance with the stroke of a single control lever;
• and
• wherein the control means controls the throttle means according to the stroke of the control lever in such a manner that the set amount of fuel is always smaller than a maximum limit determined in accordance with the set speed of the propeller, and wherein the fuel supply means determines the amount of fuel actually supplied to the engine by adjusting the set amount of fuel based on the altitude of the aircraft.