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, methods, and components. 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 aspiration ports. Each inflation conduit may comprise features to improve aspiration efficiency, such as two or more rows of ports per conduit 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;
- an aspiration housing fluidly coupled to the airbag cushion, wherein the aspiration housing comprises an aspiration inlet configured to allow for receipt of ambient air into the airbag cushion during inflation of the airbag cushion;
- and
- an inflation module comprising:
- an inflator;
- and
- an inflation conduit fluidly coupled with the inflator, wherein the inflation conduit comprises an elongated axis, wherein the inflation conduit is configured to deliver inflation gas from the inflator into the airbag cushion through a plurality of aspiration ports, and wherein the inflation conduit comprises at least two rows of aspiration ports.
An aspirating airbag cushion assembly, comprising:
- an airbag cushion;
- a housing comprising an aspiration inlet 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 through the aspiration inlet, and wherein at least a subset of the plurality of inflation ports comprises a multi-faceted port comprising:
- a first portion directing inflation gas away from a vertical direction at least substantially corresponding with an incoming direction of the ambient air through the aspiration inlet during deployment;
- and
- a second portion angled relative to the first portion in a direction towards the vertical direction.
An aspirating airbag cushion assembly, comprising:
- an airbag cushion;
- an aspiration inlet configured to allow for receipt of ambient air into the airbag cushion during inflation of the airbag cushion;
- a plurality of inflation conduits, wherein each of the plurality of inflation conduits comprises a first row of inflation ports and a second row of inflation ports, wherein each of the inflation ports in the first row comprises an angled surface angled towards the inflation ports in the second row, and wherein each of the inflation ports in the second row comprises an angled surface angled towards the inflation ports in the first row;
- and
- a valve assembly comprising at least one valve configured to open to allow for receipt of ambient air through the aspiration inlet and configured to close following inflation of the airbag cushion.
Dependencies are inferred from the claim text.