Accession Number : ADD011129

Title :   Axisymmetric Thrust Augmenting Ejector with Discrete Primary Air Slot Nozzles.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Reznick,S G ; Franke,M E

Report Date : 15 May 1984

Pagination or Media Count : 5

Abstract : A circular thrust augmenting ejector has an annular wall which defines a central passageway and a convergent contoured inlet section, a constant area cylindrical mixing section and a divergent conical diffuser outlet section. The inlet, mixing and outlet sections merge one into the next in axisymmetric serial relationship. The ejector also has a plurality of discrete primary nozzles arrange about the periphery of the annular wall at the entrance to the inlet section thereof for injecting a primary flow of high velocity air into the inlet section and thereby entraining a secondary flow of ambient air into the central passageway of the ejector. (Author)

Descriptors :   *Patents, *Thrust augmentation, *Thrust augmentor nozzles, *Ejectors, Air flow, High velocity, Slots, Inlets, Diffusers, Circular, Injection, Air entrainment, Secondary flow, Thrust vector control systems, Mixing, Thrust, Axisymmetric, Vertical takeoff aircraft, Short takeoff aircraft

Subject Categories : Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE