REGENERATIVE COOLING PATH FOR LIQUID-FUEL ROCKET ENGINE CHAMBER Russian patent published in 2014 - IPC F02K9/64 

FIELD: transport.

SUBSTANCE: invention relates to aerospace engineering. A regenerative cooling path for a liquid-fuel rocket engine chamber contains an exterior and flame sheaths with cooling channels between them formed by doubletee spacers on which flow energisers are placed. Flanges of the doubletee spacers are of a variable width due to interleaving recesses made on them, herewith, flow energisers are formed by the mentioned interleaving recesses; recesses on each flange of the doubletee spacer are made in a staggered order, recesses on the upper and lower flanges of the doubletee spacer are made in the staggered order, recesses of adjacent spacers are arranged so that recesses on the flanges of one spacer lay opposite to projections of its adjacent spacer; recess depth is 25-75% of the flange width; in the vertical walls of the doubletee spacers through channels are made.

EFFECT: invention provides higher efficiency of heat exchange in channels.

6 cl, 6 dwg