Patent ID: 7360787

Claim:
A gas generator, comprising: an oblong outer housing ( 12 ) having an inner wall forming a tapered section, and an elongated combustion chamber insert ( 24 ; 24 ′; 424 ; 524 ) with a tubular wall arranged in said outer housing ( 12 ), said combustion chamber insert ( 24 ; 24 ′; 424 ; 524 ) containing a solid propellant ( 26 ), having a first and a second axial end ( 28 , 29 ; 29 ′) and being held in said outer housing, and at least one of the first and second axial ends having a tapered section, the geometric shape of the tapered section of the housing and of the tapered section of the combustion chamber insert being adapted to each other so that in the tapered section of the outer housing ( 12 ) the tapered section of the tubular wall of said combustion chamber insert ( 24 ; 24 ′; 430 ; 530 ) lies against the inner housing wall with a form fit and is fixed at both axial ends ( 28 , 29 ; 29 ′) in radial and axial directions to said outer housing ( 12 ), while the tubular wall is spaced from the outer housing ( 12 ) between the axial ends ( 28 , 29 , 29 ′) and the combustion chamber insert is prestressed in the axial direction.