INNER HOUSING OF INTERMEDIATE HOUSING FOR AIRCRAFT TURBOJET ENGINE, INTERMEDIATE HOUSING, INCLUDING SUCH INNER HOUSING, AND TURBOJET ENGINE, INCLUDING SUCH INTERMEDIATE HOUSING Russian patent published in 2020 - IPC F02K3/75 F02C9/18 F02C7/57 

FIELD: machine building.

SUBSTANCE: invention relates to turbojet engines for aircraft, particularly, to inner housing of intermediate housing of turbojet engine, intermediate housing for turbojet engine and turbojet engine. Inner housing of intermediate housing includes outer shell (14), which has secondary hole (29), and adjustable bypass valve, which contains outlet pipe (30) made of composite material and located in intermediate area. Outlet pipe (30) is attached to outer shell (14) at the level of secondary hole (29), wherein between outlet branch pipe (30) and outer shell (14) there is at least one sealing gasket (33), which prevents penetration of air and flame. Outlet branch pipe (30) made of composite material includes draped composite wall (30a, 30b) made of multiple folded layers impregnated with resin.

EFFECT: invention allows improving reliability and efficiency of use of outlet branch pipe of inner housing of turbojet engine made of composite material in area with risk of ignition.

14 cl, 5 dwg