摘要:
This disclosure relates generally to a Multiple Payload Expendable Device consisting of a set of cylindrical multiple payload casings, each payload casing exhibiting circular symmetry fluid passages in relation to firing squibs and voltage coded squib actuating circuit that converts existing single payload expendable device systems to multiple payload expendable device systems.
摘要:
A dispenser for storing and launching countermeasures from an aircraft, comprising an elongate body provided with at least one launch opening where the countermeasures are stored in cartridges, where the cartridges are interconnect to each other in a slidable manner, and where the cartridges are adapted to be tilted by a tilting means to a selected angle, such that the openings of the cartridges can be directed in a selected direction. The advantage of the invention is that a countermeasure can be directed in a desired angle before it is launched.
摘要:
Protective device for protection of rapidly moving objects such as aircraft or the like against homing heads that react to radiation, in particular infrared radiation, emitted by the aircraft, and that have a destructive charge. The protective device has at least one dispenser arranged on the object to be protected, and at least one effective body (flare), such as a spot flare or the like, that can be launched therefrom. The effective body has at least one decoy charge that can be at least partially ignited at a distance from the object and which, upon decomposition, temporarily forms an apparent target body that spectrally simulates, in a way relevant to the homing head, the target signature of the object to be protected. The effective body (flare) has at least one mooring line that unfolds from a dispenser upon launching of the effective body (flare) and that can be connected with the dispenser at one free end, whose end facing away from its free end is essentially permanently connected to the effective body (flare).
摘要:
A decoy flare for infrared (IR) seeking missiles comprises a tubular outer shell with a first rupturing disc sealing a rear end of the outer shell and a cover member with a second rupturing disc sealing a front end of the outer shell. These form a sealed container for a pyrophoric liquid. A nozzle cap is attached to the cover member with a nozzle being located in front of the second rupturing disc. A piston in the container adjacent the first rupturing disc separates the pyrophoric liquid from the disc. A holder for a gas generator, a disc of energetic material, is connected in sealed relationship to the container to position the gas generator adjacent the first rupturing disc and form a gas generating chamber between the holder and that disc. That holder contains an ignition mechanism for the gas generator and a seal to prevent gases from escaping via the ignition mechanism after it is activated. Gases generated in the chamber will rupture the first rupturing disc, pushing the piston forward to rupture the second disc and eject pyrophoric liquid from the nozzle. A base portion connected to the flare forms a holder for an impulse cartridge that separates the flare from the base portion when activated, that separation activating the ignition mechanism. In these decoy flares, a friction wire safety ignition mechanism may be used to activate the gas generator upon separation of the flare from the base or, alternatively, a bore rider safety ignition mechanism may be used.
摘要:
A non-pyrotechnic reusable cartridge for ejecting countermeasures, such as chaff, flares, or other payloads. The cartridge comprises a gas chamber storing a compressed gas and including an ejection mechanism and a countermeasure storage section storing a countermeasure. In one embodiment, the ejection mechanism is a solenoid valve. When an ejection signal is transmitted by the pilot, the solenoid valve opens to allow the compressed, non-flammable gas to be released from the gas chamber and push the countermeasure out of the cartridge at a high rate of speed. Other embodiments use a rupture disk positioned between the ejection section and the countermeasure storage section. When an eject signal is received, the rupture disk is either punctured or melted to allow the compressed gas into the storage section, thus ejecting the countermeasure. A non-pyrotechnic ejection mechanism allows safer handling, flashless dispensing, reuse of the cartridge, varied ejection force, and economical reloading with a variety of payloads.
摘要:
In the field of infrared or electromagnetic decoys for protecting light aircraft or helicopters, pyrotechnic cartridges and ammunition comprising racks receiving the cartridges are described. Thus it is possible for the same volume of ammunition to have a larger number of shots and to carry out the loading of the ammunition simply and quickly. The cartridge (1) consists of a sole (2) fixed to a case (3), in which are accommodated a plurality of assemblies (11) comprising pyrotechnical ejection charges (6), pyromechanical assemblies (7), ignition charges (8), effective charges (9) and the caps (10). The case (3) is provided with a plurality of receptacles and comprises at its base a blocking device (4). The assemblies (11) are independent and are arranged in parallel in the various receptacles of the case (3); the sole (2) is common to the various receptacles of the case (3) and is provided with electrical fuses.
摘要:
A multiple payload cartridge connectible to a source of firing signals by two connecting wires having a first and a second branch each having a squib therein connected in parallel across the connecting wires is characterized by a zener diode connected in series with the second squib in the branch containing the same. The zener diode prevents the flow of current through the branch with the second squib until a firing signal of a predetermined polarity and a magnitude greater than the breakdown voltage of the zener diode is applied across the second branch. The zener diode responds to that firing signal by breaking down into a low resistance conduction path to thereby permit an electrical current sufficient to raise the second squib to incandescence to flow therethrough.
摘要:
An igniter for a bore safe flare comprising a piston member and a cap mem designed to cause ignition only after the flare grain has cleared the launcher. Flame from the firing charge cannot reach the flare grain for ignition until separation of cap and piston. The cap member is fixed in the base of the flare grain and carries the ignition mix which projects into a central bore of the piston.
摘要:
The invention relates to an igniter unit for a munition, comprising a housing and at least one pyrotechnic charge, the igniter unit comprising a control and communication device arranged in the housing and at least one interface connected to the control and communication unit and arranged in the housing.
摘要:
A dispenser for storing and launching countermeasures from an aircraft, comprising an elongate body provided with at least one launch opening adapted for storing the countermeasures in cartridges, where the dispenser comprises a manoeuvrable spoiler arranged in front of the launch opening, where the spoiler is adapted to be fully retracted before a countermeasure has been launched, and that the spoiler is adapted to extend outwards in a predefined manner when a countermeasure has been launched. The advantage of the invention is that a spoiler will reduce induced noise from the open cartridges by extending a spoiler outwards depending on the number of launched countermeasures. This allows for a simple, reliable and cost-effective solution.