公开(公告)号：SG150426A1

公开(公告)日：2009-03-30

申请号：SG2008029324

申请日：2008-04-17

Applicant: UNITED TECHNOLOGIES CORP

Inventor： CHON YOUNG H ,  MONGILLO DOMINIC J ,  PROPHETER-HINCKLEY TRACY A ,  JOSEPH W BRIDGES JR

Abstract: ANGLED TRIPPED AIRFOIL PEANUT CAVITY A turbine airfoil comprises a wall portion, a cooling channel, an impingement rib, impingement rib nozzles, turbulators and leading edge cooling holes. The wall portion comprises a leading edge, a trailing edge, an outer diameter end, and an inner diameter end. The cooling channel receives cooling air and extends through an interior of the wall portion between the inner diameter end and the outer diameter end. The impingement rib is positioned within the wall portion forward of the cooling channel and between the outer diameter end and the inner diameter end to define a peanut cavity. The impingement rib nozzles extend through the impingement rib for receiving cooling air from the cooling channel. The turbulators are positioned within the peanut cavity to locally influence the flow of the cooling air. The leading edge cooling holes discharge the cooling air from the peanut cavity to an exterior of the wall portion.