Patent classifications
B60R2021/26064
Gas generator, airbag module, vehicle safety system and method for purifying a pyrotechnically produced gas
The invention relates to a gas generator (10), particularly a pyrotechnical tube gas generator, with an axial longitudinal direction (L), comprising an ignition unit (20), a combustion chamber (30) axially mounted downstream from the ignition unit (20) and comprising a combustion chamber bottom (35) forming a combustion chamber outlet (36), and a filter chamber (70) that is axially mounted downstream of the combustion chamber (30). According to the invention, at least one guiding sleeve (50) and a front-side baffle plate (80) are formed in the filter chamber, a first end (51) of the guiding sleeve (50), on the side of the combustion chamber, being axially mounted downstream from the combustion chamber bottom (35), and a second end (53) of the guiding sleeve (50) being associated with the baffle plate (80), a first deflection section being formed on the baffle plate (80) and the guiding sleeve (50) which allows a gas flow to an outer side of the guiding sleeve (50) into an annular first discharge chamber (75).
Hybrid airbag inflator
A hybrid airbag inflator (100, 200) has a disk-shaped pressure vessel having a central axis with a domed upper housing portion (20) with a sealed exhaust port (22) for releasing inflation gases and a domed lower body portion (10) welded to the domed upper housing portion (20). The domed lower body portion (10) has one or more protrusions (12) extending from an outer or exterior surface positioned offset from the center axis. At least one of the protrusions (12) houses an igniter assembly (60) with accessible electrical connections (61, 63). The disk-shaped pressure vessel inflator (100, 200) contains gas generant pellets (2) and a quantity of pressurized inert gas (1) for inflating an airbag. The combination of the protrusions (12) and domed lower body portion (10) has a unique profile of a petaloid shape. Optionally, the domed upper housing portion (20) can also have the petaloid shape.
Gas generator, in particular for a vehicle occupant protection system, spring for arranging in a gas generator, airbag module, and vehicle occupant protection system
The invention relates to a gas generator (10), in particular for a vehicle occupant protection system, comprising at least an igniter (15) and a combustion chamber (17) containing a pyrotechnic solid fuel bed (18), wherein a spring (30) is arranged in the combustion chamber (17), which spring can be elongated in the direction of an end (22) of the combustion chamber (17) remote from the igniter (16) by a gas flow produced when the gas generator (10) is activated. According to the invention, the spring (30) has a plurality of spring segments (31, 32, 33) having outside diameters (Q1, Q2, Q3) of different size.
GAS GENERATOR, AIRBAG MODULE, VEHICLE SAFETY SYSTEM AND METHOD FOR PURIFYING A PYROTECHNICALLY PRODUCED GAS
The invention relates to a gas generator (10), particularly a pyrotechnical tube gas generator, with an axial longitudinal direction (L), comprising an ignition unit (20), a combustion chamber (30) axially mounted downstream from the ignition unit (20) and comprising a combustion chamber bottom (35) forming a combustion chamber outlet (36), and a filter chamber (70) that is axially mounted downstream of the combustion chamber (30). According to the invention, at least one guiding sleeve (50) and a front-side baffle plate (80) are formed in the filter chamber, a first end (51) of the guiding sleeve (50), on the side of the combustion chamber, being axially mounted downstream from the combustion chamber bottom (35), and a second end (53) of the guiding sleeve (50) being associated with the baffle plate (80), a first deflection section being formed on the baffle plate (80) and the guiding sleeve (50) which allows a gas flow to an outer side of the guiding sleeve (50) into an annular first discharge chamber (75).
HYBRID AIRBAG INFLATOR
A hybrid airbag inflator (100, 200) has a disk-shaped pressure vessel having a central axis with a domed upper housing portion (20) with a sealed exhaust port (22) for releasing inflation gases and a domed lower body portion (10) welded to the domed upper housing portion (20). The domed lower body portion (10) has one or more protrusions (12) extending from an outer or exterior surface positioned offset from the center axis. At least one of the protrusions (12) houses an igniter assembly (60) with accessible electrical connections (61, 63). The disk-shaped pressure vessel inflator (100, 200) contains gas generant pellets (2) and a quantity of pressurized inert gas (1) for inflating an airbag. The combination of the protrusions (12) and domed lower body portion (10) has a unique profile of a petaloid shape. Optionally, the domed upper housing portion (20) can also have the petaloid shape.
GAS GENERATOR, IN PARTICULAR FOR A VEHICLE OCCUPANT PROTECTION SYSTEM, SPRING FOR ARRANGING IN A GAS GENERATOR, AIRBAG MODULE, AND VEHICLE OCCUPANT PROTECTION SYSTEM
The invention relates to a gas generator (10), in particular for a vehicle occupant protection system, comprising at least an igniter (15) and a combustion chamber (17) containing a pyrotechnic solid fuel bed (18), wherein a spring (30) is arranged in the combustion chamber (17), which spring can be elongated in the direction of an end (22) of the combustion chamber (17) remote from the igniter (16) by a gas flow produced when the gas generator (10) is activated. According to the invention, the spring (30) has a plurality of spring segments (31, 32, 33) having outside diameters (Q1, Q2, Q3) of different size