| 摘要 |
PURPOSE:To miniaturize and lighten a gas generator by connectively arranging an inner cylindrical member having inward and outward flange parts and an outer cylindrical member having an inward flange member outside of it on the outside of a central cylindrical member having a bottom part on one side end and an outward flange part on the other end side by their respective flange members. CONSTITUTION:A housing is constituted of a central cylindrical member 10, an inner cylindrical member 20 outside of it and an outer cylindrical member 30 outside of it, and the central cylindrical member 10 is formed into a storage chamber 4, the inner cylindrical member 20 into a combustion chamber 5 and the outer cylindrical member 30 into a coolant filter chamber 6. Thereafter, a bottom part 13 is formed on one side part of the central cylindrical member 10, an outward flange part 11 is formed on the other side end and an inward flange part 21 and an outward flange part 22 are formed on the inner cylindrical member 20. The outward flange member 11 of the central cylindrical member 10 and the inward flange member 21 of the inner cylindrical member 20 are respectively welded on their objective side main bodies by a step part 14. In the same way, by providing an inward flange part 32 on the outer cylindrical member 30, the inner and outer cylindrical members 20, 30 are connected to each other by the flange parts 22, 32. |
