Hybrid gas generator for filling a gas bag

US5586783A · kind A · utility

Assignee

• TEMIC Bayern-Chemie Airbag GmbH · DE

Inventors

• Paul Adam · Jefferson City, US
• Heinz Tillmann
• Michael Werner · Greenville, US
• Peter Renn · Taufkirchen, DE
• Joachim Reif · Sauerlach, DE
• Uwe Dolling · Heldenstein, DE

Key dates

• Filing date: Feb 23, 1995
• Grant date: Dec 24, 1996
• Expiry date: Feb 23, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/1812
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A hybrid gas generator includes a pyrotechnic gas generator joined to a high-pressure vessel which is sealed with a sealing disk composed of a substance which chemically reacts with propellant gas produced in use so that the sealing disk is opened with an advantageously reduced acoustic pressure. The propellant gas is chemically reactive and is produced from a propellant composition which is present in a surplus amount and which is composed of a propellant which is oxidizable and at least one oxidant for oxidizing the propellant. The propellant gas attacks the sealing disk chemically and thermally, and continuously burns through it to release the gas from the high-pressure vessel into a mixing chamber in the pyrotechnic gas generator.