Dual-wall pyrotechnic air bag inflator with tortuous gas flow
US5582427A · kind A · utility
36Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1995 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | Jun 28, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/2644
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A dual-walled air bag inflator having a filter and gas generant within a common chamber, with the gas exiting radially from the inflator. Various arrangements are provided to force the generated gas to change its direction of travel at least 90.degree. prior to exiting in order to slow the gas and improve filtration. Gas barriers are placed within the chamber to force the desired flow. The gas flow may be directed radially inward in opposed streams to cancel velocity, and then directed radially outward toward the filter and exits. In one embodiment a mixing chamber is provided for the gas prior to encountering the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.