Rotor blade with cooling groove at the tip

摘要

An example turbine blade (100) includes a blade having an airfoil profile (104) extending radially toward a blade tip (112). A shelf (156) is established in the blade tip (112). A sealing portion (124) of the blade tip (112) extends radially past a floor (160) of the shelf (156). The sealing portion (124) extends from a blade tip leading edge (140) to a blade tip trailing edge (144). A groove (168) is established in the blade tip (112). The groove (168) extends from adjacent the shelf (156) to adjacent the blade tip trailing edge (144). The groove (168) is configured to communicate a fluid from a position adjacent the shelf (156) to a position adjacent the blade tip trailing edge (144).