Rocket motor manufacture

Rocket motor manufacture

Keywords Aerojet-General,Patents, Rocket motors

In British Patent 2301 421 Aerojet-General Corporation describe rocket motor manufacture. These motors are constructed by encasing a solid porous poly(vinyl alcohol) core in the shape of the propellant grain motor casing materials and applied over a disposable or removable mandrel. The motor is then completed by filling the open passages of the core with liquid oxidizer. When the liquid oxidizer permeates the poly(vinyl alcohol), the result is a solid continuous propellant grain of rubbery consistency. Aluminium powder may be incorporated in either the porous poly(vinyl alcohol) or the liquid oxidizer to achieve a fuel-enhanced propellant.