초록 ▼

A gas turbine engine and method and control therefor particularly useful as the power plant for a ground vehicle. The gas turbine engine is of the free turbine type, and employs variable guide vanes to control the free turbine output. The guide vane control system is a combined hydromechanical and e

A gas turbine engine and method and control therefor particularly useful as the power plant for a ground vehicle. The gas turbine engine is of the free turbine type, and employs variable guide vanes to control the free turbine output. The guide vane control system is a combined hydromechanical and electronic control system to automatically regulate the guide vanes for both power regulation and braking modes.

대표청구항 ▼

A method of altering the incidence of motive gas flow onto a power turbine section of a free turbine type gas turbine engine, comprising the steps of: mechanically sensing power turbine section speed; mechanically sensing the incidence of gas flow onto the power turbine section; generating a mechani

A method of altering the incidence of motive gas flow onto a power turbine section of a free turbine type gas turbine engine, comprising the steps of: mechanically sensing power turbine section speed; mechanically sensing the incidence of gas flow onto the power turbine section; generating a mechanical input signal indicative of a desired speed for the power turbine section; comparing the sensed speed with the desired speed input signal and generating a mechanical speed error signal indicative of the difference between the sensed and desires speeds; comparing the sensed incidence of gas flow with the speed error signal and generating a mechanical output signal indicative of the difference between the sensed incidence and the speed error signal; and adjusting the incidence of gas flow onto the power turbine section in relation to said mechanical output signal in a manner minimizing said speed error signal.