Variable cycle intake for reverse core engine

摘要

A gas generator for a reverse core engine propulsion system has a variable cycle intake for the gas generator, which variable cycle intake includes a duct system. The duct system is configured for being selectively disposed in a first position and a second position, wherein free stream air is fed to the gas generator when in the first position, and fan stream air is fed to the gas generator when in the second position.

主权项

1. A gas generator for a reverse core propulsion system, comprising:
a variable cycle intake for the gas generator; said variable cycle intake comprising a duct system; said duct system comprising
a free stream air inlet;a straight duct extending from the free stream air inlet;a slidable duct connected to the straight duct;a fan stream air inlet duct;a curved duct segment having an inlet end and an outlet end; andan outlet duct section connecting the outlet end of the curved duct segment to the gas generator, said duct system being selectively disposed in a free air stream position and a fan air stream position, wherein a free stream air is fed to said gas generator by connecting said inlet end to said slidable duct when in said free air stream position and a fan stream air is fed to the gas generator by connecting said inlet end to said fan stream air inlet duct when in said fan air stream position.