Preswirler configured for improved sealing

摘要

A preswirler of a gas turbine engine includes an outer ring. The outer ring includes an outer flange with a plurality of first holes, and an outer cylindrical portion extending from the outer flange. The preswirler also includes an inner ring. The inner ring includes an inner flange spaced apart from the outer flange. The inner ring also includes an inner cylindrical portion located within the outer cylindrical portion and a back portion extending from the inner flange to the inner cylindrical portion. The inner ring further includes a plurality of second holes.

主权项

1. A gas turbine engine, comprising:
a diaphragm having
a mounting portion including
a first surface,a second surface opposite the first surface,a plurality of outer diameter holes,a plurality of inner diameter holes,a plurality of cooling holesa plurality of blind holes adjacent to the plurality of inner diameter holes anda plurality of lock plates located between the plurality of inner diameter couplers and the first surface; a preswirler having
an outer ring including
an outer flange including a first forward surface in contact with the second surface,an outer cylindrical portion extending from the outer flange, anda plurality of first holes in the outer flange, andan inner ring including
an inner flange spaced apart from the outer flange defining an opening for cooling air in flow communication with the plurality of cooling holes therebetween, the inner flange including a second forward surface in contact with the second surface,an inner cylindrical portion located within the outer cylindrical portion defining an annular chamber for cooling air therebetween, anda back portion extending from the inner flange to the inner cylindrical portion, anda plurality of second holes in the inner ring;wherein the outer flange, the inner flange, and the back portion define a radial chamber for cooling air therebetween, the radial chamber being in flow communication with the annular chamber and the opening; a plurality of outer diameter couplers, wherein the plurality of outer diameter holes are aligned with the plurality of first holes, and where each of the plurality of outer diameter couplers passes through an outer diameter hole and into a first hole; and a plurality of inner diameter couplers, wherein the plurality of inner diameter holes are aligned with the plurality of second holes, and where each of the plurality of inner diameter couplers passes through an inner diameter hole and into a second hole.