GAS GENERATOR

• Main Authors: UEDA SHINYA, OSUGI TOMOSHI, TAKIZAWA HARUKI, KOYAMA HIROAKI
• Format: Patent
• Language: English; Japanese
• Published: 27.05.2021
• Subjects: PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

To reduce size and weight while ensuring pressure-proof performance in a gas generator in which a plurality of gas jetting ports including gas jetting ports with different opening areas from each other are provided on a housing.SOLUTION: A gas generator 1A includes a housing configured by joining a plurality of shell members, and one of the plurality of the shell members has a cylindrical part 22 and a flange part 23. On the cylindrical part 22, a plurality of gas jetting ports 24a, 24b, and 24c including gas jetting ports having different opening areas are provided, and the flange part 23 is configured to have a shape in which distance from an axis line O of the cylindrical part 22 to outer edges of the flange part 23 is non-uniform. When a perpendicular line PL is drawn to the axis line O from a maximum outer form position A positioned furthest from the axis line O out of the outer edges of the flange part 23, a pair of the gas jetting ports arranged at a position closest to the perpendicular line PL so as to clamp the perpendicular line is the one other than the gas jetting port with largest opening area out of the plurality of the gas jetting ports.SELECTED DRAWING: Figure 9 【課題】互いに異なる開口面積を有するものが含まれた複数個のガス噴出口がハウジングに設けられてなるガス発生器において、耐圧性能を確保しつつ小型軽量化を図る。【解決手段】ガス発生器１Ａは、複数のシェル部材が接合されることで構成されたハウジングを備え、複数のシェル部材のうちの１つは、筒状部２２とフランジ部２３とを有する。筒状部２２には、互いに異なる開口面積を有するものが含まれた複数個のガス噴出口２４ａ，２４ｂ，２４ｃが設けられ、フランジ部２３は、筒状部２２の軸線Ｏからフランジ部２３の外縁までの距離が非一様となる形状に構成される。フランジ部２３の外縁のうち、軸線Ｏから最も遠い位置である最大外形位置Ａから、軸線Ｏに対して垂線ＰＬを引いた場合に、当該垂線ＰＬを挟み込むようにこれに最も近い位置に配置された一対のガス噴出口が、上記複数個のガス噴出口のうちの最も開口面積が大きいもの以外のものである。【選択図】図９