Blocking device for fan ramjet engines

Details Blocking device for fan ramjet engines Blocking device for fan ramjet engines

1990-04-05

1991-12-31

Casaregola, Louis J.

Power plants

Reaction motor

Motive fluid from diverse generators alternatively ejected...

602701, F02K 302

Patent

active

050760521

ABSTRACT:
First and second axially adjustable rings, each ring having a front and rear end, function together in a telescopic manner for blocking and exposing an annular inflow surface in a combined turboramjet engine. The annular inflow surface is blocked by the device when a basic engine and fan are inoperative to direct ram air through a ring duct to a ramjet combustion chamber. When in an inoperative position, the first and second rings are moved above one another into an intermediate housing with their front ends and a flow divider forming a lug edge and, when in a blocking position of the annular inflow surface, each ring is moved out of the intermediate housing to a different degree. The first ring is moved out farthest and has an end surface mating with the local oblique contour of the front wall.

REFERENCES:
patent: 4909031 (1990-03-01), Grieb

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