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A control system for a gas turbine engine, especially a vehicular gas turbine engine, having a speed governor responsive to a controlled variable which is the speed of a gas generator shaft for providing an output to control fuel flow to the engine, a temperature regulator device responsive to a con

A control system for a gas turbine engine, especially a vehicular gas turbine engine, having a speed governor responsive to a controlled variable which is the speed of a gas generator shaft for providing an output to control fuel flow to the engine, a temperature regulator device responsive to a controlled variable which is the gas temperature of the gas generator of the engine for providing an output to control the positioning of variable guide vanes of the engine, and a control arrangement for controlling the controlled variable and outputs of the speed governor and temperature regulator device as a function of the engine characteristics to ensure optimum engine operation.

대표청구항 ▼

Control system for a gas turbine engine, especially for a vehicular gas turbine engine, having a gas generator means including a combustion air compressor and a gas turbine on a common gas generator shaft, a combustion chamber, and a free power turbine, variable guide vanes being arranged at the inl

Control system for a gas turbine engine, especially for a vehicular gas turbine engine, having a gas generator means including a combustion air compressor and a gas turbine on a common gas generator shaft, a combustion chamber, and a free power turbine, variable guide vanes being arranged at the inlet of said free power turbine, the control system including speed governor means responsive to a controlled variable which is the speed N1 of the gas generator shaft for providing an output signal for controlling fuel flow to the engine, and temperature governor means responsive to a controlled variable which is a gas temperature T of the gas generator means for providing an output signal for controlling the positioning of the guide vanes, and varying means responsive to engine characteristics for varying the controlled variables and the output signals of said speed governor means and said temperature governor means as a function of engine characteristics, said varying means varying the controlled variable N1 in accordance with the input temperature Tt1 of the engine and varying the controlled variable T in accordance with the input temperature Tt1 and the speed N1 of the gas generator shaft, said varying means varying the output signal of said speed governor means in accordance with the input temperature Tt1 of the engine, one of the gas turbine inlet temperature Tt3 and outlet temperature Tt4 of the gas generator means, and a multiplier K representing at least one characteristic of the engine, and said varying means varying the output signal of said temperature governor means in accordance with the difference between the specified speed N1spec and the actual speed N1act of the gas generator shaft.