公开(公告)号：WO2018125526A1

公开(公告)日：2018-07-05

申请号：PCT/US2017/064705

申请日：2017-12-05

Applicant: KEY SAFETY SYSTEMS, INC.

Inventor： LIN, Qiong

IPC: B60R21/264

Abstract: A cylindrical inflator (10) has an elongated tubular housing (12), a hollow tubular filter and a plurality of gas generant pellets. The elongated tubular housing (12) has a first end sealed by an igniter assembly (20) and an opposite second end sealed by a diffuser assembly (40). The diffuser assembly (40) has a first set of discharge openings (44) sealed by frangible foil (32), and a combustion chamber (15) interposed and extending between the igniter assembly (20) and the foil sealed diffuser assembly (40). The hollow tubular filter (50) is positioned inside the combustion chamber (15) and has an enlarged first end (54) compressed against an inner wall of the elongated tubular housing (12) and an elongated narrow portion (52) extending from the enlarged first end (54) of the hollow tubular filter toward the second end (16) of the tubular housing (12).