Patent ID: 7600783
Filing Date: 2009-10-13
Classification: B60R

Abstract:
1. A gas generator for an air bag, comprising: a cylindrical housing; two combustion chambers provided in the housing and being adjacent to each other in an axial direction of the cylindrical housing; a partition wall separating the two combustion chambers; an ignition device and a gas generating agent stored in each of the combustion chambers; a gas discharge port provided at each of the combustion chambers; two rows of plural projections which are formed discontinuously in a circumferential direction with intervals on the inner surface of the cylindrical housing and that holds and fixes the partition wall; and a retainer press-inserted into at least one of the two combustion chambers, the retainer including a peripheral wall section having a first peripheral wall and a second peripheral wall, having a diameter larger than the first peripheral wall, that abuts an inner circumferential surface of the cylindrical housing, such that the two combustion chambers are separately air-sealed.