SOLID-PROPELLANT ROCKET ENGINE Russian patent published in 2016 - IPC F02K9/28 

FIELD: engines and pumps.

SUBSTANCE: claimed rocket engine comprises the body with bottoms and channel charge secured to the body and divided into two parts by the inclined annular slot composed by thin-wall permanent shaping element. One edge of said permanent shaping element is secured over OD with the body while its ID is larger than the annular slot diameter to make the blind annular slot and the second edge of said shaping element. The entire surface of said shaping element is provided with armour coating from the side of rear bottom. The thin-wall element of release material abuts on the portion or the entire surface of said shaping element from the side of the front bottom. The second of shaping element is bent off from the charge channel.

EFFECT: increased filling of the engine housing with the propellant, the diagram of combustion surface variation from the arch approximates to the constant magnitude.

2 cl, 1 dwg