Gas turbine engine preswirler with angled holes

摘要

A gas turbine engine preswirler (470) includes an outer ring (471) and an inner ring (472). The inner ring (472) includes a plurality of angled holes (490). Each angled hole (490) follows a vector which is angled in at least one plane. A component of the vector is located on a plane perpendicular a radial from an axis of the preswirler (470). The component of the angle is angled relative to an axial direction of the preswirler (470).

主权项

1. A gas turbine engine preswirler, comprising:
an outer ring; and an inner ring having
a plurality of angled holes, each angled hole following a vector which is angled in at least one plane with a component of the vector being located on a plane perpendicular to a radial extending from an axis of the preswirler, the component of the vector being angled relative to an axial direction of the preswirler; anda plurality of first stress relief regions, each first stress relief region being contiguous to one of the plurality of angled holes with each first stress relief region having a curved and an elongated profile, the first stress relief region being wider than a diameter of the one of the plurality of angled holes.