| 摘要 |
A pressure vessel containing compressed fluid has the outlet thereof sealed by a rupturable plug. The outlet communicates with a manifold which in turn communicates with one end of an elongated cylindrical diffuser. The diffuser includes longitudinal rows of partial circumferential slots. Each row communicates the diffuser with the interior of a respective inflatable occupant restraint cushion. A cylinder is supported within the manifold by radial ribs thereof engaging the interior wall of the manifold. A conical headed piston is slidable within the cylinder and the space between the piston and a closed end wall of the cylinder is filled with viscous fluid. An aperture in the closed end wall of the cylinder receives a pintle secured to the piston. The conical head of the piston is located in predetermined relationship to a fixed area orifice at the outlet of the pressure vessel. A tubular diffuser screen is inserted within the diffuser and covers the slots to the cushions. One end of the screen opens to the manifold and the other end of the screen is closed by a plug of resilient material.
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