Diffuser for an air bag
    2.
    发明授权

    公开(公告)号:US06585290B2

    公开(公告)日:2003-07-01

    申请号:US09930916

    申请日:2001-08-16

    IPC分类号: B60R2116

    摘要: An air bag module including a cushion, a diffuser and an inflator is provided. The cushion is expandable radially and rearward of the air bag module. The diffuser is disposed in the cushion and is also expandable radially and rearward of the air bag module. The diffuser includes a vent in fluid communication with the cushion. The inflator generates an inflator gas exhaustible into the diffuser to deploy the cushion. The inflation gas is receivable by the diffuser for expanding the cushion and the diffuser to a first predetermined position. The vent is positioned downstream of the interior surfaces when the diffuser is at the first predetermined position. The inflation gas is diffusible by the diffuser through the vent to radially expand the cushion after the rearward expansion to the first predetermined position. The cushion is further expandable rearward to a second predetermined position after the radial expansion of the cushion.