| 摘要 |
<p>An airbag inflator (20) includes a pair of telescoping pistons (28, 52) slidingly mounted within a housing (22). Pressurization of a combustion chamber (50) by a pyrotechnic initiator (38) acts on one piston to pressurize a hydraulic fluid chamber (58), which, in turn, acts on the other piston to pressurize a liquid propellant reservoir (54). Liquid propellant can then be regeneratively pumped from the reservoir into the combustion chamber for combustion to generate an airbag inflation gas. A hydraulic fluid damping chamber (62) is utilized to exert a controllable retarding force on the one piston, such as to control the rate of airbag inflation gas generation.</p> |
