DEVICE FOR TURBOJET JET NOZZLE ROTATION Russian patent published in 2019 - IPC F02K1/80 

FIELD: engine building.

SUBSTANCE: invention relates to aircraft engine building, particularly, to turbojet jet nozzles turning devices. Jet turbojet jet nozzle turning device comprises fixed body with two additional supports in form of brackets L-shaped, fixed on it from the side of its outer surface. Mobile body is located between them and is pivotally connected to fixed body in two diametrically opposite positions pins pivoted in radial holes of fixed body and brackets L-like form of additional support. Each pin with its cylindrical surface is in contact with bushing installed in the corresponding hole of rotary body. Brackets L-shape of additional supports are made of material with coefficient of linear temperature expansion at operating temperature, selected from range, calculated by formula α_brac=(0.9…1.0)×α_body×t_body/t_brac, where α_brac is coefficient of material linear temperature expansion bracket L-shape of additional support at operating temperature; α_body is coefficient of linear thermal expansion of fixed material body at operating temperature; t_body is fixed body; t_brac – operating temperature bracket L-like form of additional support.

EFFECT: invention allows improving reliability of the turbojet jet nozzle turning device.

1 cl, 2 dwg