REHEAT RING FOR DOUBLE-FLOW TURBOJET ENGINE, REHEAT DEVICE AND TURBOJET ENGINE Russian patent published in 2007 - IPC F02K3/10 

Abstract RU 2291315 C2

FIELD: turbojet engines.

SUBSTANCE: proposed reheat ring for double-flow turbojet engine, in which temperature of flow of exhaust gases in primary circuit exceeds temperature of air flow in second circuit, has turnable axis of symmetry coinciding with axis of rotation of turbojet engine and it is provided with front ring case from one side forming ring channel axially open to side of output, and at other side, ramp of fuel nozzles arranged in ring channel. It is formed by great number of interconnected sectors of ring. Each sector has sector of front ring case being equipped with fuel intake connected with ramp of fuel nozzles. Front surface of front ring case is made for contact with primary flow. Each sector of ring has connecting device arranged in ring channel at input of fuel nozzle ramp for mounting fuel intake at one side, and ventilation chamber at other side, made in ring channel on at least part of length of sector of front ring case and at input of fuel nozzle ramp. Each sector of front ring case is provided with intake of secondary air getting out of ventilation chamber 2 for cooling fuel nozzle ramp. Sector of rear ring case is provided on output of fuel nozzle ramp to protect ramp.

EFFECT: reduced heat stresses, increased efficiency at augmented conditions.

10 cl, 12 dwg

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Authors

Bjunel' Zhak Marsel' Artjur

Rosh Zhak Andre Mishel'

Rakotondrenib B'En-Ehme Oliv'E Solo Samjuehl' Filipp

Tusho Stefan Anri Gi

Dates

2007-01-10Published

2004-08-04Filed