Gas generator

US5447105A · kind A · utility

Assignee

• TEMIC Bayern-Chemie Airbag GmbH · DE

Inventors

• Hermann Bauer · Wolnzach, DE
• Richard Bender · Achern, DE
• Rudolf Hawly · Mertingen, DE

Key dates

• Filing date: Nov 4, 1994
• Grant date: Sep 5, 1995
• Expiry date: Nov 4, 2014

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F42B3/04
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

An essentially cylindrical gas generator for generating combustion gases. The gas generator includes a housing having gas outlet openings; a combustion chamber surrounded by the housing; gas-generating fuel disposed in the combustion chamber; an igniting device disposed in the combustion chamber for igniting the fuel; a first filter disposed between the fuel and the gas outlet openings for prefiltering generated gases upon passage thereof from the combustion chamber through the first filter toward the outlet openings; a second filter disposed between the first filter and the outlet openings for filtering the gases upon passage thereof from the first filter through the second filter; and a generally tubular body surrounding the second filter. The tubular body is surrounded by the housing, and is composed of a plurality of third filters and a plurality of guide plates circumferentially alternating with the third filters. The guide plates are disposed in a path of the gases exiting from the second filter, for guiding the gases in a circumferential direction along the second filter to the third filters for passage therethrough and through the outlet openings.