Patent ID: 8944747
Filing Date: 2015-02-03
Classification: F01D,Y10T

Abstract:
1. A turbomachine comprising: a casing; a guide vane carrier attached to the casing, the guide vane carrier having a hole configured to accommodate a shaft; a driving ring facing the guide vane carrier and configured to rotate relative to the guide vane carrier, the driving ring having a groove on a face facing the shaft; at least one linkage attached with a first end to an inside of the groove and wherein the first end is moveable within the driving ring in a direction substantiality concentric to the driving ring; at least one lever arm attached to a second end of the at least one linkage; and at least one vane supported by the guide vane carrier and attached to the at least one lever arm, the at least one vane configured to rotate relative to the guide vane carrier when the driving ring rotates, wherein at least a portion of the at least one linkage stays inside the groove when the driving ring rotates.