Pyrotechnic actuator with filter

US8544271B2 · kind B2 · utility

Assignee

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

• Bernd Dreyer · Taunusstein, DE
• Joachim Schäfer · Darmstadt, DE
• Erik Wiesinger · Heidesheim, DE
• Rolf Wich · Großkrotzenburg, DE
• Axel Thielert · Hösbach, DE

Key dates

• Filing date: Apr 21, 2009
• Grant date: Oct 1, 2013
• Expiry date: Oct 25, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R21/38
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A pyrotechnic actuator is provided for an active hood that encompasses an installation site for a gas generator, a cylinder incorporating a moving piston and a compressed gas line that joins the installation site with the cylinder. A filter body for trapping particles from the gas stream of the gas generator is arranged on the compressed gas line.