COOLING CIRCUIT OF LIQUID-PROPELLANT ENGINE CHAMBER Russian patent published in 2010 - IPC F02K9/64 

FIELD: engines and pumps.

SUBSTANCE: invention can be used during development of chambers of liquid propellant engines (LPE), namely for alternator-free LPEs operating on cryogenic components, e.g. oxygen and hydrogen. Cooling circuit of liquid propellant engine chamber includes internal shaped cover with ribs of constant thickness, which are made in it and form cooling circuit channels. On internal shaped cover there installed is external shaped cover and attached to it. Bottom part of each cooling circuit channel in cross section is made along the circle arc, and its convex part faces the chamber axis and has constant thickness. Bottom part of each cooling circuit channel in cross section is made along the arc of circle with radius equal approximately to R=0.5S, where R - inner radius of profile of bottom part of cooling circuit channel, S - width of channel. On internal surface of internal cover, between longitudinal profiled slots there made are longitudinal ribs.

EFFECT: improving conditions of heat exchange between combustion products and cooler, and increasing cooler pressure in cooling circuit.

3 cl, 3 dwg