Gas generator for air bag

US4919897A · kind A · utility

Assignee

• Dynamit Nobel GmbH · DE

Inventors

• Richard Bender · Achern, DE
• Gerrit Scheiderer · Fürth, DE

Key dates

• Filing date: May 23, 1988
• Grant date: Apr 24, 1990
• Expiry date: May 23, 2008

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2021/2648
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A gas generator for an air bag, which can be manufactured in an advantageous manner, has at least two tubular pressure tanks wherein materials that release gas are combusted. The pressure tanks are connected radially with a central member containing an igniter element. The gas-releasing material fills up a tubular interior extensively in the form of stackable molded elements adapted to fit within the pressure tank. In most cases, an adequate path for the ignition vapors is constituted by a central channel within each element, while in case of rod-shaped molded elements, such adequate path is represented by the "natural" cavities; additionally, a free surface area should exist between the elements and may be provided by nubs and/or indentations on the lateral faces of these molded elements.