SOLID-FUEL ROCKET ENGINE OF GUIDED PROJECTILE Russian patent published in 2017 - IPC F02K9/30 F02K9/36 

FIELD: rocket science.

SUBSTANCE: invention relates to the rocket technology and can be used in the development of rocket engines with solid fuels, primarily for guided projectiles, shoted from an artillery gun barrel. The solid-fuel rocket engine contains a housing with an axial tube, the augmented ignition charge, equipped with the delivery outlets, and also partially armor-protected on the outer surface of the auxiliary solid fuel charge with the central channel. The solid fuel charge is rest on the augmenter and mounted in the motor hosing at the seal ring with a radial clearance relatively to the housing and the axial tube. The radial clearance between the housing and the outer armored solid fuel charge surface is made smaller than the radial clearance between the central channel of the solid fuel charge and the axial tube. There are radial grooves at the augmenter from the solid fuel charge supporting face end side, going through the delivery outlets and connecting the cavity, formed by the central channel of the solid fuel charge and an axial tube, with a cavity, formed by the outer surface of the solid fuel charge and the housing.

EFFECT: invention improves the reliability of the solid charge ignition and start of the rocket engine, while increasing its efficiency.

2 cl, 4 dwg