Afterburner flameholder construction

摘要

An afterburner on a turbofan engine includes a flameholder means having an annular flameholder gutter positioned downstream of a first exhaust means of a core engine while said flameholder means also includes a plurality of radial gutter sections extending radially outward towards an outer wall of said afterburner and downstream of a second annular exhaust means of a bypass duct around said core engine; a plurality of said radial gutter sections having a manifold extending along the forward portion thereof, each manifold having an inlet at its inward end located downstream of said first exhaust means with said manifold directing a hot exhaust flow from said inlet to openings on each side of its associated radial gutter section in a portion downstream of said second annular exhaust means.