ENCLOSED BAFFLE FOR A TURBINE ENGINE COMPONENT

摘要

A turbine engine component includes an internal baffle spaced between first and second walls. Each wall may have a plurality of cooling holes in fluid communication with respective upstream and downstream cooling paths defined between the baffle and the respective walls. Cooling air first flows through an upstream end portion of the upstream cooling path, then through a downstream end portion where the air enters a bleed aperture in the baffle. From the bleed aperture, a portion of or all of the cooling air may enter an internal cavity defined by the baffle and, from there, flows through at least one hole that may be a plurality of impingement holes in the baffle, and into the downstream cooling passage where the portion or all of the remaining cooling air may exit the component through the cooling holes in the second wall.

主权项

1. A turbine engine component comprising:
a first wall; a second wall; and a baffle spaced between the first and second walls, wherein the first wall and the baffle define an upstream cooling path therebetween having an upstream end portion and a downstream end portion, the second wall and the baffle define a downstream cooling path therebetween, and the baffle has a first side facing the upstream cooling path that at least in-part defines a bleed aperture at the downstream end portion and no additional apertures are defined in the side at the upstream end portion.