SOLID FUEL ROCKET ENGINE Russian patent published in 2022 - IPC F02K9/30 F02K9/32 

FIELD: space technology.

SUBSTANCE: invention relates to the field of rocket and space technology, mainly for the construction of solid-fuel engines and an emergency rescue system for an object. A solid fuel rocket engine containing a power cylindrical shell with bottoms, on the cylindrical part of which nozzle blocks are made, while inside the power shell there is a combustion chamber connected to the bottoms, in which there is a solid fuel charge in the form of cylindrical channel sticks of all-round combustion and an igniter, as well as a exploder installed in the socket of the bottom part of the power shell from the side of the igniter, while the axes of the nozzle blocks intersect at one point on the longitudinal axis of the shell, and the centers of the outlet sections of the nozzle blocks lie on the same circle with the center on the longitudinal axis of the shell. The two centers of the outlet sections of the nozzle blocks lie in the withdrawal plane, and the other centers are arranged in pairs symmetrically to the withdrawal plane at angles α and β along the circumference so that the distance from the centers with angles α to the withdrawal plane is less than the distance from the centers with angles β, and the gas paths of the nozzle blocks are connected to an annular receiver formed by the inner surface of the power shell and the outer surface of the combustion chamber. The ratio of the volumes of the receiver and the combustion chamber W_rec =(0.8…1.0)W_{C. C.}

EFFECT: invention provides an increase in the stability of traction characteristics, a reduction in trajectory spreads and the fall zone of the object being rescued.

5 cl, 3 dwg