TUBE-CAPSULE AND VALVE FOR BURSTING ITS MEMBRANE Russian patent published in 2003 - IPC

FIELD: chemical ignition of air-and-fuel mixture of gas generator or combustion chambers at limited number of starts. SUBSTANCE: proposed tube-capsule includes pipe line filled with combustible component entrapped between membranes. U-shaped pipe line is provided with valves on either side for forced bursting of membranes. Membrane bursting valve has body with L-shaped passage for flow of component, pyro drive with flexible diaphragm and pusher and hollow piston-knife which is fitted at the end of rod movable in hole of body coaxially relative to pusher forming circular clearance together with inner flow passage whose area is equal to area of cut section. Provision is made for accurate delivery of combustible component in accordance with engine cyclogram and excluding choking of passage with membrane fragments. EFFECT: simplified construction; enhanced reliability. 4 cl, 5 dwg