Systems and methods for improved airbag aspiration
AssigneeAutoliv ASP, Inc.
InventorsJeffrey D. Williams, F. Chad Copier
Life of this patent
Estimating the term…
Abstract
Airbag cushion assemblies for aspirating ambient air and related assemblies. Some embodiments may comprise an aspirating airbag cushion assembly comprising an airbag cushion, which may be configured to deploy from a housing or the like. The assembly may further comprise one or more inflation conduits configured to deliver inflation gas into the airbag cushion through a plurality of inflation ports. Each inflation conduit may comprise one or more features to improve aspiration efficiency, such as expanded distal portions and/or angled features to redirect inflation gases in a manner to improve the efficiency of the inflation gas to aspirate ambient air into the cushion.
Claims20
An aspirating airbag cushion assembly, comprising:
- an airbag cushion;
- a housing configured to allow for receipt of ambient air into the airbag cushion during inflation of the airbag cushion;
- and
- an inflation module comprising a plurality of elongated inflation conduits configured to deliver inflation gas from an inflator, wherein each of the inflation conduits comprises a plurality of inflation ports, wherein each of the plurality of inflation ports is configured to, upon actuation of the inflator, draw ambient air into the airbag cushion, and wherein at least a subset of the plurality of inflation ports comprises an expanded distal portion, wherein the expanded distal portion defines a greater cross-sectional area of each inflation port of the at least a subset of the plurality of inflation ports than an adjacent portion of each inflation port extending into an adjacent inflation conduit.
An aspirating airbag cushion assembly, comprising:
- an airbag cushion;
- a housing configured to allow for receipt of ambient air into the airbag cushion during inflation of the airbag cushion;
- and
- an inflation module comprising an inflation conduit configured to deliver inflation gas from an inflator, wherein the inflation conduit comprises a plurality of inflation ports, wherein each of the plurality of inflation ports is configured to, upon actuation of the inflator, draw ambient air into the airbag cushion, wherein the inflation conduit is oriented with an upper portion facing towards the airbag cushion and a lower portion facing away from the airbag cushion so as to define a cross-sectional axis between the upper portion and the lower portion, and wherein at least a subset of the plurality of inflation ports is angled away from the cross-sectional axis at an angle of between about 10 degrees and about 30 degrees.
An aspirating airbag cushion assembly, comprising:
- an airbag cushion;
- a housing configured to allow for receipt of ambient air into the airbag cushion during inflation of the airbag cushion;
- and
- an inflation module comprising an elongated inflation conduit configured to deliver inflation gas from an inflator, wherein the inflation conduit comprises a plurality of inflation ports, wherein each of the plurality of inflation ports is configured to, upon actuation of the inflator, draw ambient air into the airbag cushion, and wherein the inflation conduit comprises a first row of inflation ports angled towards a first side of the housing to direct inflation gas towards the first side of the housing and a second row of inflation ports angled towards a second side of the housing to direct inflation gas towards the second side of the housing, the second side of the housing being opposite from the first side.
Dependencies are inferred from the claim text.