2 results about "Pyrotechnic composition" patented technology

A hybrid airbag inflator includes a pyrotechnic booster gas generant disposed in a booster combustion chamber and a pyrotechnic main gas generant disposed in a main combustion chamber. The hybrid airbag inflator also includes an initiator and a pressurized gas. The pyrotechnic booster gas generant and the pyrotechnic main gas generant are the same pyrotechnic composition but take different physical forms. The initiator deploys into the booster combustion chamber to ignite the pyrotechnic booster gas generant which in turn ignites the pyrotechnic main gas generant. The pressurized gas is in fluid communication with both the booster combustion chamber and the main combustion chamber prior to deploying the initiator, such that the pyrotechnic booster gas generant in the booster combustion chamber is under pressure before the initiator deploys.

The application discloses a snowflake-shaped effect shell, wherein the effect component in the effect shell body is an effect lead wire, the effect lead wire is composed of an outer coating and a pyrotechnic composition wrapped by the outer coating, and the effect lead wire is provided with a fireproof coating; the effect shell shell body is provided with an opening explosive and a plurality of effect lead wires, and is filled with a light fireproof filler. After the effect shell is launched, ignited and scattered in the high altitude, the combustion of the pyrotechnic composition forms intermittent white light points with bright and dark alternation, and the light points are visible within 1 km. Due to the light point flicker and the moving state in the high altitude, the effect shell does not need to be made into a U-shaped roll or a circular ring shape, and the shape of each light point is similar to the shape of the snowflakes falling; a large number of light points can also form a realistic snowflake dancing effect in the visual field of the audience; and the preparation and installation are simple and easy to implement, and the production cost is low.