Hybrid gas generator

US6289820A · kind A · utility

Assignee

• DYNAMIT NOBEL GMBH EXPLOSIVSTOFF-UND SYSTEMTECHNIK · DE

Inventors

• Lothar Anacker · Schnaittach, DE
• Karl Bayer · Brooklyn, US
• Eduard Berenz · Fürth, DE
• Uwe Brede · Ergolding, DE
• Anton Bretfeld · Fürth, DE
• Josef Kraft · Starnberg, DE
• Gerrit Scheiderer · Fürth, DE
• Waldemar Weuter · Bad Mergentheim, DE
• Jiang Zhang · Nürnberg, DE

Key dates

• Filing date: Sep 1, 1999
• Grant date: Sep 18, 2001
• Expiry date: Sep 1, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2021/2633
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The hybrid gas generator to inflate airbags comprises two combustion chambers (14, 16), in each of which a solid material charge (15, 17) is placed, and a storage chamber (11) containing a pressurized storage gas. The storage chamber (11) is connected to diffusion chamber (30) by a closing member (29) which can be perforated. The first solid material charge (15), and the second solid material charge (17) can, for instance, can be sequentially ignited by separate igniter elements (18, 19), thereby determining the pressure accumulation.