Hybrid generator with perforating pillar and two-tube body
US6460461B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2001 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | May 7, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/272
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention relates to the field of hybrid gas generators intended to inflate a protective airbag.The generator (1) consists of two metal tubes (50, 51) welded together, the upstream tube (50) being of one piece with an internal partition (26) that has a central orifice (27) closed by a diaphragm (28). The generator thus has a reservoir chamber (29) containing a pressurized gas and a combustion and mixing chamber (46) containing a pyrotechnic device (4) and a support piece (30) carrying a piston-pillar (31) the stroke of which is limited.The hot gases cannot enter the reservoir chamber (29) which may thus contain a greater amount of gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.