EXHAUST CENTERBODY FOR A TURBINE ENGINE

摘要

Exhaust centerbody (12″) for a turbine engine, comprising a truncated downstream part (26), which is connected to an upstream part (24) by an annular ridge (22) marking a discontinuity between the outer surfaces of the upstream and downstream parts, the outer surface of the downstream part having a substantially conical general shape, of which the tip (29) is oriented downstream and is positioned in the region of the axis A, the axial half-section of this outer surface defining a line of which the upstream end part is substantially tangential to a straight line (28) passing through the above-mentioned ridge and forming a non-zero angle α with a tangent (30) to the outer surface of the upstream part, in the region of the ridge, and of which the downstream end part is substantially tangential to a straight line (32) passing through the above-mentioned tip and forming a non-zero angle β with the axis A.

主权项

1. Exhaust centerbody for a turbine engine, having rotational symmetry about a longitudinal axis A, comprising an upstream annular part and a truncated downstream annular part , said downstream annular part being connected to the upstream annular part by an annular ridge marking a discontinuity in curvature between the outer surfaces of the upstream and downstream annular parts, the outer surface of the downstream part having a substantially conical general shape, of which the tip is oriented downstream and is positioned substantially in the region of the axis A, the axial half-section of this outer surface defining a line of which the upstream end part is substantially tangential to a first straight line passing through the annular ridge and forming a non-zero angle α with a tangent to the outer surface of the upstream part, in the region of the annular ridge , the downstream end part of said line being substantially tangential to a second straight line passing through the above-mentioned tip and forming a substantially non-zero angle β with the axis A, wherein the upstream end part of the line has a concavity oriented downstream and the downstream end part of said line has a convexity oriented downstream.