Patent ID: 11192519

Abstract:
Provided is a gas generator including the housing with a gas discharge port. The housing has a circular shape and includes a top plate, a bottom plate, and a peripheral wall, the housing having a ratio of an axial length L to an outer diameter D satisfying L/D≤1.1. The gas discharge port includes first opening portions having low burst pressure (P1) of the closing member and second opening portions having burst pressure (P2) higher than the burst pressure (P1). The first opening portions and second opening portions are formed on a circumference of a same circle in at least one of the peripheral wall or the top plate, and the first opening portion and the second opening portion, which are adjacent to each other in a circumference direction, are arranged such that an angle (θ1) formed by a first center line extending from a center of the same circle to a center of the first opening portion and a second center line extending from the center of the same circle to a center of the second opening portion is in a range from 15° to 65°.