CONVERTIBLE ENGINE EXHAUST FOR ROTOCRAFT

摘要

An exhaust system for a rotary wing aircraft includes a diffuser located at an airframe of the rotary wing aircraft and operably connected to an engine of the rotary wing aircraft, and a chimney extending upwardly from a diffuser wall. A door is movably positioned at the diffuser to selectively direct an engine exhaust flow through the diffuser or through the chimney. A rotary wing aircraft includes an airframe, a rotor system positioned at the airframe and rotatable about a rotor axis, and an engine operably connected to the rotor system to drive rotation of the rotor system. The aircraft includes an engine exhaust system including a diffuser positioned at the airframe and operably connected to the engine, a chimney extending upwardly from a diffuser wall, and a door positioned at the diffuser to selectively direct an engine exhaust flow through the diffuser or through the chimney.

主权项

1. An exhaust system for a rotary wing aircraft comprising:
a diffuser disposed at an airframe of the rotary wing aircraft and operably connected to an engine of the rotary wing aircraft;
a chimney extending upwardly from a diffuser wall; anda door movably disposed at the diffuser to selectively direct an engine exhaust flow rearwardly through the diffuser to a diffuser exit or upwardly through the chimney to a chimney exit.