EXHAUST DIFFUSER FOR A GAS TURBINE ENGINE EXHAUST SYSTEM

摘要

An exhaust diffuser for a gas turbine engine includes a diffuser inlet, a diffuser exit, an inner diffuser wall, and an outer diffuser wall. The inner diffuser wall may include a first tubular member with a flared downstream portion. The outer diffuser wall may include a second tubular member at least partially about the inner diffuser wall and with a second flared downstream portion. The outer diffuser wall and the inner diffuser wall extend between the diffuser inlet and the diffuser exit, and form a diffusing flowpath therebetween. The second flared downstream portion may include a lower section and an upper section, with the upper section extending further downstream in an axial direction than the lower section, relative to the diffuser axis.

主权项

1. An exhaust diffuser for a gas turbine engine, the exhaust diffuser comprising:
a diffuser inlet; a diffuser exit; an inner diffuser wall including a first tubular member about a diffuser axis extending between the diffuser inlet and the diffuser exit, the first tubular member including a first flared downstream portion proximate the diffuser exit, and an outer diffuser wall including a second tubular member about the diffuser axis and at least partially about the inner diffuser wall and extending between the diffuser inlet and the diffuser exit, the outer diffuser wall and the inner diffuser wall forming a diffusing flowpath between the diffuser inlet and the diffuser exit, the second tubular member including a second flared downstream portion, the second flared downstream portion including
a lower section, andan upper section, the upper section extending further downstream in an axial direction than the lower section, relative to the diffuser axis.