The Garrett Corporation

Wilfried Wiher

Leon D Lewis

Warde L Parker

Geoffrey D Woodhouse

Harvey B Jansen

George B Mattson

Robert A Hatch

A recuperated gas turbine engine fuel and guide vane control which controls fuel flow and guide vane position during engine idling and acceleration to minimize fuel consumption while providing fast acceleration for a ground vehicle.

Variable geometry gas turbine engine fuel and guide vane control

An electrohydraulic proportional actuator for converting an electrical input signal to proportional mechanical output. Fluid power may be derived from pressurized fuel or lubricating oil of an associated engine. The actuator may be used to drive any engine function requiring modulated control. The mechanical output is proportional to the electrical input. The actuator includes mechanical feedback to linearize the response function, thus eliminating the need for closed loop operation of the system in which the actuator is used. Both linear and rotary actuators are disclosed in various embodiments. Each type is capable of operation with either a proportional solenoid and valve or a force rebalance solenoid and valve.

Electrohydraulic proportional actuator apparatus

Growing community of inventors

Redondo Beach, CA, United States of America

Wilfried Wiher