Patent ID: 7524168

Claim:
An arrangement for the admission of cooling air to the internal walls of a component configured to rotate about a rotation axis, comprising: a component root which can be fastened to a rotor unit in a rotationally fixed manner and adjoining in a radially extending manner a component airfoil in which at least one cooling passage region extends radially longitudinally with respect to the rotation axis and in a region of the component root, opens via an opening into a cooling-air supply passage passing axially at least partly through the component root; a distribution plate with through openings, wherein the distribution plate is provided in the cooling-air supply passage in such a way that during rotation of the component the distribution plate forms a fluid-tight connection with an opening, margin surrounding the opening of the at least one cooling passage region, the through openings being configured and arranged to conduct cooling air from the axial cooling-air supply passage into the radial cooling passage region; and the cooling air supply passage being formed with at least two axially spaced-apart shoulder elements each arranged radially opposite an opening margin and enclosing with the opening margin a push-in slot for receiving the distribution plate.