Vectoring ring support and actuation mechanism for axisymmetric vectoring nozzle

摘要

A vectoring ring support and actuation apparatus (100) is provided for transferring the side loads acting on a vectoring ring (86) and generated by a gas turbine engine thrust vectoring nozzle (14) to a relatively stationary portion of the engine and tilting the vectoring ring (86) to vector the thrust of the nozzle (14). The apparatus (100) includes an axially pivotable first link (102) pivotably mounted on a relatively stationary first portion (103) of the engine, an axially pivotable second link (104) pivotably supported by and connected to the first link (102), and a vectoring ring (86) connected to an aft end (106) of the second link (104). An actuator (90) is operably mounted between a relatively stationary second portion (105) of the engine (spaced axially apart from the stationary first portion (103) of the engine) and the second link (104) to axially pivot the first link (102) with respect. Preferably a first joint (96) links the actuator (90) to the second link (104) and has at least first and second rotational degrees of freedom with corresponding first and second perpendicular axes of rotation (X1, X2). A second joint (110) pivotably connects the second link (104) to the first link (102) and has one rotational degree of freedom and a third axis of rotation co-linear with one of the first and second perpendicular axes of rotation (X1, X2). The first joint (96) is preferably a ball joint (74) having three rotational degrees of freedom.