NOZZLE jet engine with discrete CONTROLLED throat area

摘要

The proposed utility model relates to aircraft construction, in particular, to structures discretely adjustable nozzles for jet engines (hereinafter - WFD).; The nozzle comprises a housing, wherein the fixed subsonic and supersonic part of a synchronous variable cone angle, formed from a set of flaps hinged and for limited circumferential movement bonded inner ends interconnected, the outer ends of the flaps subsonic part pivotally connected to the housing and the outer ends of flaps installed in the supersonic part of the longitudinal guide of the nozzle body for compensating elongation at pumping flaps in the longitudinal plane, wherein a gas varying actuator I conicity subsonic and supersonic part of the nozzle is formed as a, a set of holes in the flaps subsonic nozzle portion for diverting a portion of the gas engine flow into the cavity formed by the outer surface of the nozzle and the engine housing, and to vent gas into the atmosphere in an opening package, e.g., turning on the control valve actuator.; New essential features of the proposed design of the nozzle are:; - Installation of the outer ends of the flaps in the supersonic part of the longitudinal guide body to compensate for the elongation of the nozzle when pumping flaps in the longitudinal plane;; - execution gas actuator synchronous changes taper subsonic and supersonic part of the nozzle in the form of a set of holes in the flaps subsonic nozzle portion for diverting a portion of the gas engine flow into the cavity formed by the outer surface of the nozzle and the motor housing, and the openings in the housing, for example, turning on the controlled drive valve for venting gas to the atmosphere.; The proposed design variable nozzle WFD improves stability retaining the nozzle throat sizes in the operating conditions, and simultaneously simplify the construction and energy costs WFD.; The proposed design of the nozzle is manufactured by known techniques using standard for aircraft structural components.; Currently, the enterprise confirmed the technical effect when tested WFD proposed nozzle design and the work on the industrial implementation.