Patent ID: 7527470

Claim:
A turbomachine stator vane having a leading edge, a trailing edge, and pressure side and suction side faces, and including a perforated open liner defining an annular cavity between an outside wall of the liner and an inside wall of the vane, an air admission opening for feeding cooling air to the inside of the liner, and an air exhaust opening for exhausting a fraction of this cooling air out from the vane, the liner being secured to the vane at one end and being free at another end to slide along an inside edge of the vane under the effects of relative thermal expansion between the liner and the inside wall of the vane, wherein said open liner includes a plurality of holes distributed over only two determined zones of said liner, a first series of holes being disposed facing the inside wall of the leading edge and a second series of holes being disposed facing calibrated emission holes formed in the trailing edge through said pressure side face, the holes through the liner in the second series of holes also being disposed in such a manner as to avoid any impact of the cooling air against the bridges of the vane.