Invention Grant
- Patent Title: Pyrotechnic actuator with a cylinder having communicating chambers
- Patent Title (中): 具有气缸的烟火执行器具有连通腔
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Application No.: US13454400Application Date: 2012-04-24
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Publication No.: US08596180B2Publication Date: 2013-12-03
- Inventor: Joachim Schaefer , Volker Scheuch , Werner Schmidt , Martin Zilg
- Applicant: Joachim Schaefer , Volker Scheuch , Werner Schmidt , Martin Zilg
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Ingrassia Fisher & Lorenz, P.C.
- Priority: DE102005051657 20051028
- Main IPC: B64D1/04
- IPC: B64D1/04 ; F41F5/00

Abstract:
A vehicle is provided having an active bonnet and a pyrotechnic actuator configured to lift the active bonnet a plurality of times without having to perform maintenance on the pyrotechnic actuator. The pyrotechnic actuator includes a cylinder having an inlet opening, a first chamber and a second chamber that are separated by a central region; a piston that is configured to be displaced through the central region of the cylinder between a first position in the first chamber and a second position in the second chamber; and a carrier having first and second gas generators each being coupled to the inlet opening. The first gas generator is configured to be ignited to lift the active bonnet a first time, and the second gas generator is configured to be ignited independently of the first gas generator to lift the active bonnet a second time.
Public/Granted literature
- US20120204562A1 PYROTECHNIC ACTUATOR WITH A CYLINDER HAVING COMMUNICATING CHAMBERS Public/Granted day:2012-08-16
Information query
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