SOLID FUEL PROPULSION SYSTEM FOR SPACECRAFT Russian patent published in 2021 - IPC F02K9/08 F02K9/28 

FIELD: space technology.

SUBSTANCE: invention relates to the field of rocket and space technology and can be used in the creation of solid-fuel propulsion systems (SFPS) for spacecraft (SC). The solid-fuel propulsion system contains solid-fuel gas generators connected by a gas duct with a storage receiver nozzle and an inlet pipe of a reduction gearbox, as well as electromagnetic control units (EMCU) connected through receivers-dampers by a low-pressure gas duct with an outlet pipe of the gearbox. Inside the storage receiver, opposite the inlet pipe, a gas temperature stabilizer is installed with a gap, made in the form of a thin-walled perforated tube closed at the ends with a thin-walled membrane in the form of caps. The tube and caps are made of high thermal conductivity alloy. Inside, the tube is filled with granules of a substance made of a material with a low melting point. At the same time, a throttle sleeve with a bell towards the tube is installed in the inlet pipe of the storage receiver with a gap to the end of the temperature stabilizer tube, and the output diameter of the bell of the choke sleeve is made smaller than the outer diameter of the cap. On the cap of the stabilizer tube facing the socket of the throttle sleeve, an annular conical visor is fixed, covering the socket and its output section overlaps the output section of the socket.

EFFECT: invention will make it possible to increase the reliability of SFPS actuators (gearboxes, EMCU) by directly stabilizing the gas temperature in the storage receiver.

3 cl, 3 dwg