Ejector-type engine thrust augmentor

Details Ejector-type engine thrust augmentor Ejector-type engine thrust augmentor

1978-05-30

1980-04-08

Garrett, Robert E.

Power plants

Reaction motor

Including motive fluid treating means

60269, 2391273, 23926517, F02K 102

Patent

active

041965850

ABSTRACT:
An ejector-type engine thrust augmentor intended for use in aircraft, e.g. in agricultural aviation. The thrust augmentor comprises an ejector shroud and a shell in the form of a truncated cone. The shell is located between the nozzle and the ejector shroud. The large-diameter inlet section of the shell faces the outlet section of the nozzle whereas the small-diameter outlet section of said shell faces the inlet section of the ejector shroud. The shell has longitudinal slots spaced at equal distances from one another. Due to the efflux of air from the longitudinal slots the stream flowing out of the nozzle acquires a complex cross section with a large surface area. This increases considerably the thrust increment with substantially smaller size and weight of the thrust augmentor.

REFERENCES:
patent: 2914916 (1959-12-01), Gelin et al.
patent: 3143293 (1964-08-01), Purse
patent: 3550721 (1970-12-01), Bruner
patent: 3592291 (1971-07-01), Medawar

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