公开(公告)号：US20100181421A1

公开(公告)日：2010-07-22

申请号：US12666757

申请日：2008-06-23

Applicant: David Albagli ,  Nathan Libis

Inventor： David Albagli ,  Nathan Libis

IPC: B64D45/04 ,  B60R21/26 ,  F42B3/04 ,  B64C25/00

CPC classification number: B64D25/00 ,  B64C25/56 ,  B64D2201/00

Abstract: A two-stage pyrotechnic gas generator for inflating an airbag has a housing with first and second chambers each having gas release apertures. The chambers are separated by a partition having an opening. Running through the gas generator is an essentially contiguous train of combustible material including a train of fast burning material passing through the first chamber to the opening, a pyrotechnic delay element associated with the opening, and a train of fast burning material within the second chamber. The first and second chambers each include a quantity of propellant deployed to be ignited by the corresponding train of fast burning material. An initiator, associated with the first chamber, is configured to initiate combustion of the essentially contiguous train of combustible material. As a result, the second quantity of propellant is ignited at a predefined delay relative to ignition of the first quantity of propellant to achieve precisely timed two-phase inflation with a single electronic initiator.

Abstract translation: 用于使气囊充气的两级烟火气体发生器具有壳体，其具有分别具有气体释放孔的第一和第二腔室。 室由具有开口的隔板分开。 通过气体发生器运行是基本上连续的可燃材料串，包括通过第一室到开口的快速燃烧材料串，与开口相关联的烟火延迟元件以及在第二室内的快速燃烧材料串。 第一和第二室各自包括一部分被部署以由相应的快速燃烧材料列车点燃的推进剂。 与第一室相关联的引发器被配置为启动基本上相邻的可燃材料串的燃烧。 结果，第二量的推进剂以相对于第一量推进剂的点火的预定延迟点燃，以通过单个电子引发器实现精确定时的两相充气。