MODULAR PROPELLANT CHARGE INITIATOR Russian patent published in 2021 - IPC F42C19/85 F42B5/38 

FIELD: weapons.

SUBSTANCE: invention relates to ignition means and is intended primarily for ignition of propellant charges of artillery systems with ammunition of bumpless charging. Initiator of modular propellant charge is installed on process structural element - printed circuit board. Printed circuit board comprises printed assembly of high accuracy and bears filament bridge and housing, which houses washer from electrically insulating material to eliminate occurrence of spark gap, and compressed high-accuracy dosing explosive charge, which provides higher functional reliability of actuation. Printed installation includes a converter of accumulated electric energy into a fire pulse in the form of a resonant half-wave radiator, fixed areas for fixing the filament bridge, which determine its unambiguous orientation and providing a narrow range of electrical resistance of the product and high reliability of operation, and a pad around the filament bridge for mounting the housing. Combined charge of explosive consists of initiating explosive and igniting composition, each of which performs its function: initiating explosive, which is sensitive to heat energy of filament bridge, uses igniter composition, which in its turn reliably ignites smoky powder of propellant charge.

EFFECT: invention is stable during storage and safe in service handling and transportation, provides higher technological effectiveness of the structure and improved functional reliability in the application.

4 cl, 2 dwg