Patent ID: 8672609
Filing Date: 2014-03-18
Classification: F01D,F02K,F05D,Y02T

Abstract:
1. A fan case for a gas turbine engine comprising: a composite fan containment case including an outer surface, a front and a rear; an attachment flange and a mounting ring respectively provided on the front and the rear; a bolt attachment supported on the outer surface, the bolt attachment includes an internal composite boss having at least one insert, the boss attached to the outer surface with at least one fiber reinforce ply and an adhesive, the insert includes a threaded hole, wherein the insert is metallic and includes a flat end that prevents rotation of the insert within the composite boss; and wherein the composite fan containment case has a containment shell providing an outer case in a containment area configured to be aligned with a fan blade, and a ballistic liner arranged in the containment area inward of the outer case.