Patent ID: 7270517
Filing Date: 2007-09-18
Classification: F01D,F05D,Y10S

Abstract:
1. A turbine blade assembly comprising: a root section; an airfoil section extending from and supported by the root section; a cooling fluid passageway comprising an inlet end disposed in the root section and extending through an interior of the airfoil section; a first wear feature disposed in the cooling fluid passageway and attached to the interior of the airfoil section; a damper comprising a mounting base, an arm attached to and extending from the mounting base, and a second wear feature attached to the arm; the damper mounting base affixed at the cooling fluid passageway inlet end so that the arm extends into the passageway to position the second wear feature proximate the first wear feature; and at least one opening in the mounting base for passing a flow of cooling fluid into the cooling fluid passageway and effective to function as a flow limiting orifice in the event of an off-design breach of the cooling fluid passageway downstream of the inlet end.