Patent ID: 6431598
Filing Date: 2002-08-13
Classification: B60R

Abstract:
A gas generator for air bags comprising:a housing formed by a cylinder with a plurality of gas exhaust openings, said housing being closed at its ends by an upper cap and a lower cap; an ignitor provided in said housing at a center portion thereof; a gas generating agent, provided in said housing at a location radially outside of said ignitor; a cooling/filtering member provided in said housing at a location radially outside of said gas generating agent to enclose said gas generating agent, and extending from the side of said upper cap to the side of said lower cap; an annular projection integrally formed on at least one of said upper cap and said lower cap so as to abut with an inner peripheral surface of said cooling/filtering member; and an annular space between said cooling/filtering member and a portion of said housing having said gas exhaust openings such that said exhaust openings face said cooling/filtering member in a radial direction via said annular space, wherein the radial width of the space is set to be circumferentially uniform in at least a location of the gas exhaust openings.