Patent ID: 8162594

Claim:
A cooled blade for a turbomachine, comprising: an inner platform; an outer platform an airfoil extending between the inner platform and the outer platform; a cavity along the airfoil and the inner and outer platforms with a first opening in the outer platform and a second opening in the inner platform; a tubular sleeve being housed in the cavity with a first end in the first opening and a second end in the second opening; and first spacers on the side of the first end of the sleeve and second spacers on the side of the second end of the sleeve creating a space between an outer face of the sleeve and a wall of the cavity, the blade being arranged so that the sleeve is inserted into the cavity through the first opening, wherein the first spacers are bosses provided on the sleeve and the second spacers are protrusions provided in the wall of the cavity along the airfoil, and wherein the second end of the sleeve is free of protrusions and is engaged with the second spacers provided in the wall of the cavity.