Inflator and airbag module
First Claim
1. An inflator for a protective device in a vehicle, comprisinga diffuser cooperating with a closing member to form an external housing of the inflator, wherein the diffuser includes a plurality of discharge orifices;
- a combustion chamber component at least partially enclosing a combustion chamber; and
a ring-shaped filter extending about an axis and the combustion chamber, the filter including a critical filter portion positioned closest to the combustion chamber component that has a reduced radial thickness compared to a remainder of the filter such that the filter is asymmetric about the axis.
1 Assignment
0 Petitions
Accused Products
Abstract
An inflator for a protective device in a vehicle includes a diffuser (10) forming a substantially rotation-symmetric external housing of the inflator with a closing member (12), wherein the diffuser (10) includes a plurality of discharge orifices (78) arranged in a row, and which are of circular shape. The inflator also includes a filter (46) and a combustion chamber component at least partially enclosing at least one of a combustion chamber (56) and a combustion chamber sleeve (60), wherein the filter (46) extends in a ring-shaped manner about the combustion chamber (56) and, at a position of its ring-shaped extension, includes a critical filter portion (120) which is closer to the combustion chamber component than the remaining filter areas situated at its ring-shaped extension, wherein the critical filter portion (120) has a reduced thickness compared to areas of the filter that are adjacent to the critical filter portion (120).
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Citations
20 Claims
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1. An inflator for a protective device in a vehicle, comprising
a diffuser cooperating with a closing member to form an external housing of the inflator, wherein the diffuser includes a plurality of discharge orifices; -
a combustion chamber component at least partially enclosing a combustion chamber; and a ring-shaped filter extending about an axis and the combustion chamber, the filter including a critical filter portion positioned closest to the combustion chamber component that has a reduced radial thickness compared to a remainder of the filter such that the filter is asymmetric about the axis. - View Dependent Claims (2)
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3. An inflator for a protective device in a vehicle, comprising
a diffuser forming a substantially rotation-symmetric external housing of the inflator with a closing member, wherein the diffuser includes a plurality of discharge orifices arranged in a row, and which are of circular shape; - and
a filter and a combustion chamber component at least partially enclosing a combustion chamber, wherein the filter extends in a ring-shaped manner about an axis and the combustion chamber and includes a critical filter portion which is closer to the combustion chamber component than a remaining area of the filter, wherein the critical filter portion has a reduced thickness compared to areas of the filter that are adjacent to the critical filter portion such that the filter is asymmetric about the axis. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An inflator for a protective device in a vehicle, comprising:
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a diffuser forming a substantially rotation-symmetric external housing of the inflator with a closing member, wherein the diffuser includes a plurality of discharge orifices arranged in a row, and which are of circular shape; a filter and a combustion chamber component at least partially enclosing a first combustion chamber, wherein the filter extends in a ring-shaped manner about the first combustion chamber and includes a critical filter portion which is closer to the combustion chamber component than a remaining area of the filter, wherein the critical filter portion has a reduced thickness compared to areas of the filter that are adjacent to the critical filter portion; wherein the first combustion chamber is filled with fuel which is associated with a first activating stage of the inflator and is closed on one side by the diffuser, wherein a first fill member is disposed between the fuel and the diffuser, wherein the first fill member has at least one circular recess into which an igniter sleeve associated with the first activating stage of the inflator or a combustion chamber sleeve associated with a second activating stage of the inflator projects; wherein the first fill member has two recesses of different size, wherein the igniter sleeve projects into a smaller recess and the combustion chamber sleeve projects into a larger recess; wherein a ratio of the diameter of the larger recess to the diameter of the smaller recess is between 1.52 and 2.25; and wherein the first fill member is designed in at least two parts that each has a shape of a double half moon.
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Specification