Gas turbine engine air valve assembly and a method for reengineering an engine configuration

摘要

A gas turbine engine air valve assembly (200) has first and second valving elements (208,202). The second element (202) is rotatable about a first axis (502) relative to the first element (208). The rotation controls a flow of air through the first and second elements (208,202). An actuator (220) is coupled by a linkage (222) to the second element (202). The linkage includes a spindle (224) having a first portion coupled to the actuator (220) to rotate the spindle (224) about a second axis (520). A guided spherical bearing (276) couples a second portion of the spindle (224) to the second element (202).