Liquid-fuelled rocket injection system - has rotary casing with ports slid pneumatically or hydraulically so as to vary free cross-section of injection ports

摘要

The system comprises a combustion chamber with fuel- and oxygen-feed systems, and round whose wall an annular casing with ignition system rotates. A thruster mechanism also slides the casing along the wall. The casing (1), which contains ports (3), is slide along the chamber wall (8) in the upstream and downstream directions by a pneumatic or hydraulic system (5). This increases or decreases the free cross-sectional area of all three injection ports (2,3,4) of the fuel system (11) in the casing and chamber wall, or shuts them off altogether, dependent on operating parameters fed in by an electric motor (13) driving a gear (14). USE/ADVANTAGE - Fully-controlled manoeuvring of spaceship when landing on another planet etc.