Turbine vane with an impingement cooling insert

摘要

An insertable impingement rib assembly (30) is provided inside a turbine vane (10). The turbine vane (10) has an airfoil portion (12) with a leading edge (14) and a trailing edge (16). The turbine vane (10) has an inner diameter platform (18) and an outer diameter platform (20). A guide channel (32) is located in the airfoil portion (12) of the turbine vane (10). The guide channel (32) has an insertion point, a leading edge guide rail rib (22), a trailing edge guide rail rib (24), and a plurality of apertures (36) therethrough. An impingement rib (34) is insertable into the guide channel (32).