Gas generator, in particular, a tubular gas generator for an air bag
First Claim
1. A tubular gas generator for an air bag comprisingan outer tube;
- an inner tube for accepting gas-producing material, said inner tube forming an annular intermediate chamber and being arranged within and radially spaced from the outer tube;
closure covers for closing open front ends of both the outer and the inner tubes; and
an ignition device for igniting the gas-producing material;
the ignition device being arranged in a central region of the axial extent of the outer and inner tubes;
peripheral opening arranged in both tubes, said peripheral openings being aligned with each other, said ignition device extending through the aligned peripheral openings; and
the intermediate chamber between the inner tube and the outer tuber being occupied in the region of the peripheral openings by a substantially annular segment-shaped holding body which has an installation through-hole aligning with the peripheral openings for holding the ignition device;
said holding body being tubular shaped and occupying the annular intermediate chamber over substantially its whole periphery, the tubular holding body having a slot extending over its whole axial length, and said slot being arranged diametrically opposite the installation through-hole of said body.
1 Assignment
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Accused Products
Abstract
The gas generator has two tubes, coaxial to each other, with different diameters, between which there is formed an annular intermediate chamber. The inner tube is filled with gas-producing material in the form of pellets, which develops pressure gas when ignited, the gas emerges via openings in both tubes. Projecting into the inner tube there is an ignition device, which extends through the cylindrical walls of both tubes. The ignition device is held by a ring or tubular holding body, which is substantially shorter than both tubes and fills out the intermediate chamber between both tubes. Both tubes are provided with peripheral openings aligning with each other, and the holding body has an installation through-hole, into which the ignition device is positioned. The holding body has furthermore a slot. The ignition device is held in a reliable manner by means of the holding body.
21 Citations
12 Claims
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1. A tubular gas generator for an air bag comprising
an outer tube; -
an inner tube for accepting gas-producing material, said inner tube forming an annular intermediate chamber and being arranged within and radially spaced from the outer tube; closure covers for closing open front ends of both the outer and the inner tubes; and an ignition device for igniting the gas-producing material;
the ignition device being arranged in a central region of the axial extent of the outer and inner tubes;
peripheral opening arranged in both tubes, said peripheral openings being aligned with each other, said ignition device extending through the aligned peripheral openings; and
the intermediate chamber between the inner tube and the outer tuber being occupied in the region of the peripheral openings by a substantially annular segment-shaped holding body which has an installation through-hole aligning with the peripheral openings for holding the ignition device;
said holding body being tubular shaped and occupying the annular intermediate chamber over substantially its whole periphery, the tubular holding body having a slot extending over its whole axial length, and said slot being arranged diametrically opposite the installation through-hole of said body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification