ROCKET SOLID PROPELLANT FUEL CHARGE FOR AIRCRAFT MISSILE ENGINE Russian patent published in 2009 - IPC F02K9/10 

FIELD: rocket engineering.

SUBSTANCE: invention relates to rocket engineering and can be used in designing, developing and producing solid-propellant rocket fuel for missile engines. The proposed charge represents a solid-propellant fuel grain with a central through channel and is partially armored on its side surface by alternating armoring lengthwise strips arranged along its outer side surface. Aforesaid armoring strips feature the length of 0.1 to 1.0 of the charge length and width making not over 0.2 of the charge burning end thickness. The total area of aforesaid armoring strips complies with the ratio covered by this invention. The said armoring strips are intermittent along the charge length with intermittency spacing of 1.0 to 2.0 mm and feature the armoring separated strip section weight of not over 1.5 g.

EFFECT: higher efficiency and safety of aircraft missile operation.

4 dwg