ELECTRIC IGNITION DEVICE Russian patent published in 2003 - IPC

FIELD: electric initiation devices for initiation of powder charges and various fuels in rocket systems. SUBSTANCE: electric ignition device has body housing initiation unit with lead-out conductors-resistance bridges and initiation charge, pyrotechnic charge, elastic compensation washer and unit protecting against unauthorized activation. The latter comes in the form of feed-through capacitors in electric insulation casing which internal plates are connected with use of soldering to each lead-out conductor and which external plates contact body through metal plate. Pyrotechnic charge is placed into independent threaded bushing screwed on body on side of initiation charge and separated from it by elastic compensation washer. EFFECT: enhanced protection of electric ignition device against induced currents of electromagnetic fields in process of operation of systems. 1 cl, 2 dwg