IMPULSE-REACTION ENGINE Russian patent published in 1999 - IPC

FIELD: flying and other vehicles. SUBSTANCE: engine has hollow cylindrical body with upper plate and inner central tailpiece secured in this plate, cover with central igniter squib, circular gaskets, locking screws and pressure nut; engine is additionally provided with concentric gas-dynamic lock, central sleeve with perforated wall and central ignition hole in its bottom which are mounted and secured in chamber of body; powder charge is mounted in above-mentioned sleeve in form of fill in cartridge. Concentric gas-dynamic lock includes concentric body with annular combustion chamber with tubular powder grain having armored ends mounted in this chamber on circular diaphragm, distributing mechanism for evacuation of powder gases from annular combustion chamber; lock is also provided with circumferential gas duct of combined profile which is oriented to polar axis of lock at inclination towards its bottom shear and is formed by profiled clearance between two bushes one of which is secured on inner wall of lock body and is profiled according to its outer surface and second bush provided with bottom hollow cylindrical end-piece is secured on outer wall of lock body; upper portion of second bush embraces first bush; it is profiled according to its inner surface forming additionally lower portion of central cavity of lock by its bottom tail-piece. EFFECT: enhanced efficiency; reduced consumption of fuel; reduced overall dimensions; reduced usage of metal. 8 cl