Self-sealing tube for a gas turbine secondary air system

摘要

A self-sealing and self-centering tube made of metal, having a tube axis, and configured to form part of a secondary system in a gas turbine engine is disclosed herein. The self-sealing and self-centering tube includes a tube having a tube wall, an inward end, an outward end, a first seal section located towards the inward end, a second seal section towards the outward end, and an extension section located between the second seal section and the outward end.

主权项

1. A self-sealing and self-centering tube for use in a secondary air system in a gas turbine engine, the self-sealing and self-centering tube comprising:
a metal tube having a tube axis, the metal tube including a tube wall circumscribing the tube axis, an inward end, an outward end, and a midpoint, the inward end and the outward end at opposite ends of the metal tube relative to the tube axis, the tube wall including a tube outer diameter; a first seal section located between the midpoint and the inward end, the first seal section having a first outer diameter, the first outer diameter being greater than the tube outer diameter; a second seal section located between the midpoint and the outward end, the second seal section having a second outer diameter, the second outer diameter being greater than the tube outer diameter; an outward end extension section located between the second seal section and the outward end; and an extraction interface including at least one extraction hole through the tube wall and within the outward end extension section.