Pyrotechnic inflator for a vehicular airbag system
US6935655B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2003 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Aug 28, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/2612
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pyrotechnic inflator for an airbag module is disclosed. The pyrotechnic inflator may have a generally tubular housing that contains an initiator, a baffle, and a quantity of inflation gas generant. The generant is disposed in a compartment defined by the baffle. The baffle has a passageway with a first end and a second end. Direct fluid communication between the first and second ends is restricted by a blockage within the passageway. Upon receipt of an activation signal, the initiator directs initiation gas into the first end. The initiation gas may exit the first end through a plurality of first end holes to reach and ignite the generant with or without requiring any intermediate igniter material. The generant combusts to produce inflation gas, which enters the second end of the passageway through a plurality of second end holes. The inflation gas exits the inflator to inflate a cushion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.