Opening device for a cold gas inflator
US6629703B2 · kind B2 · utility
12Cited by
29References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2001 |
| Grant date | Oct 7, 2003 |
| Priority date | — |
| Expiry date | Dec 14, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/1647
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A cold gas inflator having an opening device for rupturing a burst disk. The cold gas inflator is filled with stored gas. The cold gas inflator has a burst disk, which prevents the stored gas from exiting the pressure vessel. In the event of a automobile accident, the opening device is actuated, which causes the ignition of pyrotechnic material. This ignition generates a shockwave of sufficient energy to rupture the burst disk. The stored gas flows into the diffuser and then exits the cold gas inflator in the radial direction. In another embodiment, the stored gas exits the cold gas inflator in the axial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.