Gas generator for an airbag
First Claim
1. A gas generator for an airbag comprising a cylindrical casing defining a substantially cylindrical pressure reservoir, said reservoir being filled with gas-releasing material and an igniter element for igniting the gas-releasing material located at one end of the cylindrical casing;
- a support for supporting said igniter element over said gas-releasing materials and for forming an end wall of the pressure reservoir;
gas outlet openings and a filter arranged around the pressure reservoir;
said filter being accommodated in a chamber outside of the casing of the pressure reservoir;
gas passage openings arranged in a wall of the casing defining the pressure reservoir on a side facing away from the igniter element; and
the gas outlet openings leading from the chamber and lying in a zone proximate to the igniter element.
1 Assignment
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Accused Products
Abstract
In a gas generator for an airbag of a vehicle, a chamber is provided around a cylindrical pressure reservoir filled with gas-releasing materials. The chamber contains a filter and is traversed over its entire length by a gas stream produced from the gas-releasing materials along a cylindrical outer surface. Such a gas generator is especially suitable for an airbag intended to prevent primarily only the impacting of the driver'"'"'s head against the steering column while the other protective functions, which are otherwise also to be carried out by an airbag in a vehcle as the sole protective device, are taken over by a safety belt.
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Citations
12 Claims
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1. A gas generator for an airbag comprising a cylindrical casing defining a substantially cylindrical pressure reservoir, said reservoir being filled with gas-releasing material and an igniter element for igniting the gas-releasing material located at one end of the cylindrical casing;
- a support for supporting said igniter element over said gas-releasing materials and for forming an end wall of the pressure reservoir;
gas outlet openings and a filter arranged around the pressure reservoir;
said filter being accommodated in a chamber outside of the casing of the pressure reservoir;
gas passage openings arranged in a wall of the casing defining the pressure reservoir on a side facing away from the igniter element; and
the gas outlet openings leading from the chamber and lying in a zone proximate to the igniter element. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- a support for supporting said igniter element over said gas-releasing materials and for forming an end wall of the pressure reservoir;
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8. A gas generator adapted to be accommodated in a steering column and/or steering wheel of a vehicle for inflating an airbag, said gas generator comprising an inner cylindrical casing defining a substantially cylindrical pressure reservoir, said reservoir being filled with gas-releasing material and an igniter element located at one end of the inner cylindrical casing above the gas-releasing material for igniting the gas-releasing material;
- an outer housing spaced from the inner cylindrical casing to define a chamber outside of the pressure reservoir;
a filter arranged around the pressure reservoir and within the chamber outside of the pressure reservoir;
gas passage openings leading from the reservoir to the chamber and arranged in a side wall of the inner casing adjacent to an end of the pressure reservoir that is away from the igniter element; and
gas outlet openings leading from an end of the chamber and lying in a zone proximate to the igniter element. - View Dependent Claims (9, 10, 11, 12)
- an outer housing spaced from the inner cylindrical casing to define a chamber outside of the pressure reservoir;
Specification