Patent ID: 7784284

Claim:
A propulsion gas exhaust assembly, in an aircraft propelled by hot gases produced by a gas generator along a center axis of the gas generator, comprising: a duct; and a nozzle, wherein the center axis of the gas generator passes through an inlet of the duct and the nozzle, wherein said duct includes a vertical elbow defined by a first portion which guides the gas flow in a radial direction away from the axis of the gas generator and a second portion downstream of the first portion which guides the gas flow in a radial direction toward the center axis of the gas generator, downstream of the elbow the gas flow being returned to the center axis of the gas generator, wherein the axis of the nozzle is parallel and coaxial to the axis of the gas generator and the axis of the inlet of the duct, and wherein elements disposed inside the duct upstream of the elbow are not visible when the assembly is viewed directly into the nozzle.