Patent classifications
F01D17/12
CABLE ACTUATION FOR VARIABLE VANES
An actuator system including a harmonic drive operable to drive a variable vane system of a gas turbine engine.
GEARED DRIVE SHAFT ACTUATION FOR VARIABLE VANES
An actuator system including a harmonic drive operable to drive a variable vane system of a gas turbine engine.
VARIABLE VANE ACTUATION WITH ROTATING RING AND SLIDING LINKS
An actuator system including a harmonic drive operable to drive a variable vane system of a gas turbine engine.
SLIDING GEAR ACTUATION FOR VARIABLE VANES
An actuator system including a harmonic drive operable to drive a variable vane system of a gas turbine engine.
DRIVE SHAFT FOR REMOTE VARIABLE VANE ACTUATION
An actuator system including a harmonic drive operable to drive a variable vane system of a gas turbine engine.
ELECTRIC ACTUATION FOR VARIABLE VANES
An actuator system including a harmonic drive operable to drive a variable vane system of a gas turbine engine.
OFF-AXIS ELECTRIC ACTUATION FOR VARIABLE VANES
An actuator system including a harmonic drive operable to drive a variable vane system of a gas turbine engine.
GEARED UNISON RING FOR VARIABLE VANE ACTUATION
An actuator system including a harmonic drive operable to drive a variable vane system of a gas turbine engine.
35GEARED UNISON RING FOR MULTI-STAGE VARIABLE VANE ACTUATION
An actuator system including a harmonic drive operable to drive a variable vane system of a gas turbine engine.
Hot environment vane angle measurement
A turbine is provided and includes an outer duct, a turbine casing formed to define a turbine interior, the turbine casing being disposed within the outer duct to define an annulus, a vane element pivotably coupled to the turbine casing via a spindle to extend spanwise into the turbine interior and a sensor element supportively coupled to the outer duct and configured to sense a characteristic of the spindle within the annulus from which a pivot angle of the vane element is derivable.