Abstract: Fuel dispensing apparatus for dispensing fuel to a gas turbine engine is provided which includes a fuel metering slide valve having a control slide piston which directly controls an opening for supply of fuel to a gas turbine engine. A piston-cylinder servo-mechanism is provided for controlling flow of a servo fluid which acts on the control slide piston to assist in the movement thereof between respective positions. An auxiliary control slide piston of the servo-mechanism is in turn acted upon by supply of pressure to respective oppositely facing pressure surfaces from an electro-hydraulic converter. The electro-hydraulic converter is controlled by an electronic control mechanism responsive to control an engine operating parameters.

Abstract: Apparatus and method for governing speed and acceleration of a gas turbine system which includes a trimming unit responsive to the speed of a common shaft connecting a combustion air compressor and a gas turbine, which trimming unit varies the fuel flow to the combustion chamber. The setting of the fuel flow to a new speed is by way of a pressure reducer and actuator piston movable in response to changes in the compressor outlet pressure. A blocking mechanism is provided for blocking out the trimming means during acceleration and deceleration conditions. The actuator piston movable with the compressor end pressure is attached at one end of a pivotal bar which has the other end pivotally connected to a control valve sleeve on a fuel supply valve, while the trimming unit operates to control the position of a pivot intermediate the ends of the control bar in response to a speed governor which acts on a control valve piston slidable within the control sleeve.