Patent ID: 9611745
Date: 2017-04-04
CPC Classifications: F01D,F05D,Y02T

Claim:
1. An impingement cooling insert for a turbine stator vane of a gas turbine engine, the impingement cooling insert comprising: a pressure side wall; a suction side wall; an inlet cover plate with a plurality of cooling air supply openings; the pressure side wall having a plurality of spanwise extending impingement cooling air holes channels; the suction side wall having a plurality of chordwise extending impingement cooling air channels; a plurality of radial extending cooling air supply channels alternating with a plurality of radial extending cooling air return channel; the pressure side wall having a row of first impingement cooling air holes connected to each of the radial extending cooling air supply channels; the pressure side wall having a row of return air holes connected to each of the plurality of cooling air return channels; the suction side wall having a row of second impingement cooling air holes connected to each of the cooling air return channels; and, the impingement cooling insert is formed as a single piece.