Igniter for vehicle airbag inflator

Details Igniter for vehicle airbag inflator Igniter for vehicle airbag inflator

1998-07-14

2000-12-26

Poon, Peter M.

Ammunition and explosives

Igniting devices and systems

Electrical primer or ignitor

1022025, 1022028, 1022029, 102202, 10227511, F42C 1912

Patent

active

061642088

ABSTRACT:
An igniter for vehicle airbag inflator includes a stainless steel casing, an ignition unit, a pyrotechnic powder holder, and a stainless steel shell, the casing defining a receiving chamber, the ignition unit being mounted in the receiving chamber within the casing, the ignition unit including a pair of electrodes, a nickel chrome wire connected between the electrodes at one end, and an electrically insulative packing block fastened to the electrodes to fix the electrodes in a separated manner, the pyrotechnic powder holder being covered on the ignition unit and holding a high burning rate pyrotechnic powder, the stainless steel shell being covered around the pyrotechnic powder holder for protecting it from damage. The igniter can be adjusted to achieve ignition time delay within 2 milli-seconds, and maximum pressure within 40.about.60 Bar.

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