초록 ▼

A flow diverting mechanism for the twin duct offtakes or coannular offtake for a turbo fan engine powering aircraft with either thrust reversing or short takeoff and vertical landing or both capabilities includes a rotary drum mounted between the turbine and afterburner sections and includes ports c

A flow diverting mechanism for the twin duct offtakes or coannular offtake for a turbo fan engine powering aircraft with either thrust reversing or short takeoff and vertical landing or both capabilities includes a rotary drum mounted between the turbine and afterburner sections and includes ports complementing the inlets in the offtakes to divert the core stream through the offtakes and passages to proportion the fan discharge air utilized for cooling purposes in the engine to cool the liner and walls of the offtakes and the engine components located downstream of the rotary drum while assuring separation of the core stream flow and fan air flow.

대표청구항 ▼

[ It is claimed:] [1.] A flow diverting system for aircraft powered by a turbo-fan engine and having an offtake including a rotary hollow drum being cylindrically shaped for flowing engine core air through the hollow portion thereof and through ports formed in said rotary hollow drum when the flow o

[ It is claimed:] [1.] A flow diverting system for aircraft powered by a turbo-fan engine and having an offtake including a rotary hollow drum being cylindrically shaped for flowing engine core air through the hollow portion thereof and through ports formed in said rotary hollow drum when the flow of the core air is blocked, means for separating from said core air and proportioning fan air discharging from said fan to cool said offtake and the engine components downstream of said rotary hollow drum and means for rotating said rotary hollow drum to place said ports in fluid communication with said offtake.