Patent ID: 7434402
Filing Date: 2008-10-14
Classification: F01D,F02C,F05D

Abstract:
1. In a turbine engine having a combustor, a turbine and a compressor, the compressor having an active clearance control system comprising: a vane carrier having a plurality of closed channels extending substantially axially therethrough, the plurality of channels being circumferentially spaced from each other, each of the channels having an open first end and an open second end, the vane carrier further including a generally circumferentially extending supply plenum, the supply plenum being connected in fluid communication with the first end of each of the plurality of channels; a supply passage being connected in fluid communication with the supply plenum; and a discharge passage in fluid communication with the second end of each of the channels, whereby a fluid is passed in heat exchanging relation through each of the channels so as to control the thermal growth and contraction of the vane carrier to thereby control compressor clearances.