公开(公告)号：US10589711B2

公开(公告)日：2020-03-17

申请号：US15952884

申请日：2018-04-13

申请人： GM Global Technology Operations LLC

发明人： Ingrid A. Rousseau ,  Megan E. McGovern ,  Teresa J. Rinker ,  Jeffrey J. Calderas ,  Kestutis Sonta

IPC分类号： B60R22/195 ,  B01D39/20 ,  B01D46/24

摘要： A lap belt pretensioner for a lap belt configured to secure an occupant of a vehicle seat includes a pyrotechnic device. The pyrotechnic device is configured to generate a force directed to tension the lap belt around the occupant and emit an exhaust gas including particulates at high pressure and high temperature as a byproduct of the generated force. The lap belt pretensioner also includes a housing configured to retain the pyrotechnic device and defining an exhaust passage configured to expel the exhaust gas from the lap belt pretensioner. The lap belt pretensioner additionally includes a shield arranged over the exhaust passage and configured to collect and/or deflect the emitted particulates and dissipate heat energy thereof. A vehicle having the vehicle seat mounted to the vehicle structure and employing the seatbelt system is also provided.

公开(公告)号：US20190315308A1

公开(公告)日：2019-10-17

申请号：US15952884

申请日：2018-04-13

申请人： GM Global Technology Operations LLC

发明人： Ingrid A. Rousseau ,  Megan E. McGovern ,  Teresa J. Rinker ,  Jeffrey J. Calderas ,  Kestutis Sonta

IPC分类号： B60R22/195 ,  B01D39/20 ,  B01D46/24

摘要： A lap belt pretensioner for a lap belt configured to secure an occupant of a vehicle seat includes a pyrotechnic device. The pyrotechnic device is configured to generate a force directed to tension the lap belt around the occupant and emit an exhaust gas including particulates at high pressure and high temperature as a byproduct of the generated force. The lap belt pretensioner also includes a housing configured to retain the pyrotechnic device and defining an exhaust passage configured to expel the exhaust gas from the lap belt pretensioner. The lap belt pretensioner additionally includes a shield arranged over the exhaust passage and configured to collect and/or deflect the emitted particulates and dissipate heat energy thereof. A vehicle having the vehicle seat mounted to the vehicle structure and employing the seatbelt system is also provided.