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Gas generator for a safety system for the protection of occupants of motor vehicles, with a tubular or cylindrical housing, wherein the gas-generating solid propellant is contained in a combustion chamber within which volume-equalizing structure is arranged, surrounding the propellant, both in the d

Gas generator for a safety system for the protection of occupants of motor vehicles, with a tubular or cylindrical housing, wherein the gas-generating solid propellant is contained in a combustion chamber within which volume-equalizing structure is arranged, surrounding the propellant, both in the direction of flow－along the principal axis－and peripherally over the entire circumference.

대표청구항 ▼

Gas generator for a safety system for the protection of occupants of motor vehicles, comprising: a cylindrical housing, defining a combustion chamber housing having one end and an opposite another end, said one end being an open end; a cylindrical housing end cap for connection to said open end of s

Gas generator for a safety system for the protection of occupants of motor vehicles, comprising: a cylindrical housing, defining a combustion chamber housing having one end and an opposite another end, said one end being an open end; a cylindrical housing end cap for connection to said open end of said cylindrical housing, said end cap including an inwardly directed flange extending into said combustion chamber and an outwardly directed apron extending away from said combustion chamber, said end cap including combustion chamber discharge openings defining an axial direction of flow; an igniter extending into said cylindrical housing to provide an igniter portion with an igniter discharge opening within said cylindrical housing, said igniter portion facing said combustion chamber discharge openings with said discharge openings being axially spaced from said igniter portion with respect to an axial direction of said cylindrical housing; gas generating solid propellant positioned within said combustion chamber, said gas generating solid propelle to being provided in the form of a plurality of gas generating pellets; and volume-equalizing means including end cap volume-equalizing means for contacting said propellant in said axial flow direction－along a principle axis of said housing－and annular volume-equalizing means for coaxially surrounding said propellant around said axial flow direction and extending over an entire inner circumferential surface of said cylindrical housing between said igniter and said discharge openings, said annular volume equalizing means being provided between said cylindrical housing and said gas generating solid propellant to define an annular flow passage between said cylindrical housing and said gas generating solid propellant, said annular flow passage being substantially coaxial to said axial flow direction and extending to said end cap volume-equalizing means whereby flow from said annular flow passage passes through said end cap volume-equalizing means to said discharge openings; said end cap comprising a shaped spherical segment defining flow direction means for directing combustion gas from said combustion chamber radially inwardly as combustion gas passes from said combustion chamber to a discharge chamber, said inwardly directed flange extending into said combustion chamber adjacent to said peripheral volume-equalizing means and adjacent to said end cap volume-equalizing means and said flange contacting inner surface of said cylindrical housing.