公开(公告)号：US20200231293A1

公开(公告)日：2020-07-23

申请号：US16251562

申请日：2019-01-18

Applicant: Bell Helicopter Textron Inc.

Inventor： Thomas Dewey PARSONS ,  Alan Hisashi STEINERT

IPC: B64D27/14 ,  B64C29/00 ,  B64D33/02

Abstract: An exemplary convertible engine includes an engine housing forming a fan duct extending from a fan inlet to an exhaust; a fan positioned in the fan duct proximate the fan inlet; an engine core located in the fan duct aft of the fan, the engine core coupled to the fan by a fan shaft; a drive shaft mechanically coupled to the engine core and extending exterior of the engine housing; and a dedicated core inflow duct coupled to the core and having a core inlet to capture and direct air into the engine core. An inlet barrier filter may be located in the dedicated core inflow duct. The core inlet may be located inside of the fan duct or exterior to the fan duct. A gearbox may be operationally connected to the fan shaft and may be located inside of the fan duct.