UNCOOLED NOZZLE ATTACHMENT POINT Russian patent published in 2009 - IPC F02K9/97 

FIELD: engines and pumps.

SUBSTANCE: invention is related to the field of power generating sets, namely to rocket engines, and is used in development and creation of chambers for liquid-propellant rocket engines with uncooled nozzle. Uncooled nozzle attachment point for attachment to nozzle of liquid-propellant rocket engine comprises profiled support surface for nozzle installation, arranged in the form of profiled flange and installed in output part of regeneratively cooled nozzle, nozzle with response profiled support surface, and is fixed by means of bolts that connect support surfaces of attachment point and uncooled nozzle to each other. Nozzle support surface is arranged in the form of profiled annular L-shaped profile superposed with header of coolant supply into nozzle cooling line, and is installed with its one side to chamber longitudinal axis at the angle equal to angle between perpendicular line drawn to nozzle profile in the point of junction_; and profile generatrix, and on the other side of nozzle support surface, long slots are arranged, which form clamp with lobes as in collet type, at that profiled L-shaped ring is installed on support surface of nozzle, and its one part touches the lobes, while the other touches nozzle support surface. Long slots are arranged in profiled L-shaped ring.

EFFECT: higher temperatures of attachment point and reliability of uncooled nozzle attachment point operation made of composite materials, as well as reliability of regeneratively cooled nozzle operation.

2 cl, 1 dwg