Gas generator
First Claim
1. A gas generator comprising a cylindrical housing, gas generating agents, packed in the housing to generate gas by burning, and a plurality of ignitors fitted to the housing for burning the gas generating agents, wherein each ignitor has a resistance exothermic body to generate heat by electrifying and thereby ignite ignition agents, and respective resistance values of the resistance exothermic bodies are different from each other.
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Accused Products
Abstract
It is the object of the present invention to provide a gas generator that can provide a controlled expansion and inflation of the airbag with improved reliability. The gas generator D of the present invention is so structured that gas generating agents 7 packed in combustion chambers 3, 4 can be burnt by two ignitors 8, 9 independently of each other, wherein the ignitors 8, 9 electrically ignite ignition agents 26 by use of bridge wires 24 for generating heat by electrifying, and resistance values thereof are differentiated from each other.
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Citations
6 Claims
- 1. A gas generator comprising a cylindrical housing, gas generating agents, packed in the housing to generate gas by burning, and a plurality of ignitors fitted to the housing for burning the gas generating agents, wherein each ignitor has a resistance exothermic body to generate heat by electrifying and thereby ignite ignition agents, and respective resistance values of the resistance exothermic bodies are different from each other.
- 4. A gas generator comprising a cylindrical housing, a partition member for partitioning an interior space of the housing into a plurality of combustion chambers, gas generating agents packed in the combustion chambers to generate gas by burning, and a plurality of ignitors fitted to the housing for burning the gas generating agents packed in the combustion chambers independently of each other, wherein the each ignitor has a resistance exothermic body to generate heat by electrifying and thereby ignite ignition agents, and respective resistance values of the resistance exothermic bodies are different from each other.
Specification