Hybrid generator with perforating pillar
US6231079A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2000 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | May 9, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B3/045
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to the field of hybrid gas generators intended to inflate an airbag to protect the occupants of a motor vehicle. The generator (1) according to the invention consists of a metal tube (2) containing an internal partition (26) having a central orifice (27) closed by a diaphragm (28). This partition divides the generator into a reservoir chamber (29) containing the pressurized gases and a combustion and mixing chamber (46) containing a pyrotechnic device (4) extended by a support piece (30) containing a piston-pillar (31) which rests against the diaphragm (28). The stroke of the piston is limited by fins and the base of the piston acts as a deflector, preventing hot gases from entering the reservoir chamber (29) during operation, so that this chamber can contain a greater amount of gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.