EXHAUST NOZZLE CENTER BODY ATTACHMENT

摘要

A ceramic turbine engine exhaust component, such as a ceramic matrix composite (“CMC”) exhaust center body may be positioned around a metallic attachment ring. The attachment ring may have a greater coefficient of thermal expansion than the CMC center body. A plurality of bolts radially-spaced around the circumference of the attachment ring may be inserted through apertures in the center body with a sliding fit, and may be coupled to the attachment ring. The bolts may slide within the apertures, allowing the attachment ring to thermally expand without applying extra loads on the exhaust center body due to the expansion.

主权项

1. A mechanical attachment system for an exhaust component of a turbine engine comprising:
the exhaust component constituting either a nozzle or a center body and comprising a housing, the housing comprising an aperture; a bushing inserted at least partially within the aperture; an attachment ring; and a bolt configured to be inserted at least partially within the bushing and forming a sliding fit therewith, and the bolt is coupled to the attachment ring.