Gas generator having housing of double structure
US5306041A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1993 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Mar 29, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/2644
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a gas generator for an air bag, particularly to the improvement of a housing for a gas generator. The gas generator according to the present invention is characterized having a combustion chamber formed with a housing having an annular top wall fixed at an inner edge portion thereof to a circumferential edge of a top wall of a central cylindrical holder, and an annular bottom wall fixed at an inner edge portion thereof to an edge portion of an opposite end of the holder. A diffuser is provided to cover the top wall of the central cylindrical holder and the annular top wall of the combustion chamber, whereby a double wall covering the combustion chamber is formed. An annular closure is provided so as to cover a bottom wall of the housing of the combustion chamber and is welded at an inner edge portion thereof to the edge portion of the lower end of the central cylindrical holder. An outer end of the closure is welded to an extended portion of the diffuser to form a filter/coolant chamber. Outlet ports for a gas from the filter/coolant chamber are provided in the extended portion of the diffuser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.