Dual-wall integrated flange joint

Abstract

A dual-wall integrated flange joint is provided. The integrated flange joint includes an inner wall having at least one inlet and at least one outlet, a flange extending radially outward from the inlet of the inner wall, and a collar extending from the flange in the direction of the inner wall and surrounding at least a portion of the inner wall. The integrated flange joint is formed of a single piece of material. Also, the collar at least partially defines an outer wall, and a volume between the collar and the inner wall at least partially defines an airgap.