摘要:
A gas generator for use for a safety device in vehicles comprises a pyrotechnical propelling charge, wherein the propelling charge is formed from a first and at least a second master batch which are in a mixed state in a filling. Each master batch has a plurality of molded propellant bodies having defined geometry and having a relative quickness. The relative quickness RQ2 of the second master batch is less than the relative quickness RQ1 of the first master batch, wherein RQ2=RQ1·fq and fq≤0.9. The invention further relates to a method for producing the propelling charge.
摘要:
The invention describes an igniter support (22) for an igniter unit (20) of a gas generator (10), comprising a first holder element (30) made from a first material and a second holder element (32) made from a second material different from the first material. Both holder elements (30, 32) can be positively coupled to each other. Further, a subassembly (16), a gas generator (10) and a method for manufacturing a gas generator (10) are described.
摘要:
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.
摘要:
An adaptive deployable restraint element (10) for a vehicle safety system comprising at least two leg elements (11, 12) at least in portions arranged in V-shape relative to each other between which at least one cross brace (13, 14, 15) connecting the leg elements (11, 12) is arranged, wherein the leg elements and/or the cross brace (13, 14, 15) are/is inflatable. The invention further relates to an airbag module and an occupant safety system comprising such restraint element as well as to the use of the fin ray effect in an adaptive restraint element.
摘要:
The invention relates to gas generating compositions for use in safety devices for vehicles. In particular, the invention relates to said compositions based on guanidine nitrate used in pedestrian protection devices. The composition substantially comprises 75 to 98% by weight of guanidine nitrate as fuel and 2 to 25% by weight of a burn accelerator selected from the group of the transition metal compounds, the metal nitrates, metal chlorates, metal perchlorates, ammonium perchlorate and mixtures thereof, wherein the transition metal compounds are selected from the compounds of the transition metals Ti, Cr, Mn, Fe, Cu, Zn, Zr and Mo and wherein the gas generating composition exhibits a burn rate of from 3 to 17 mm/s at 20 MPa.
摘要:
An inflator (10), especially for a vehicle safety system, includes a combustion chamber (16) in which a solid propellant (18) combustible under the generation of gas is accommodated, and a compressed gas chamber (24) containing compressed gas (26), wherein even in the non-activated state of the inflator (10) a fluid communication exists between the combustion chamber (16) and the compressed gas chamber (24). The compressed gas (26) contains at least one inert gas as well as oxygen and at least one combustible gas, wherein the combustible gas is provided at a concentration at which no self-supporting conversion of the combustible gas with oxygen takes place.
摘要:
The invention relates to a pyrotechnical actuator for a vehicle safety system comprising a cylinder (10) and a hollow piston (20) being displaceable relative to each other from an idle state to an activated state, wherein an igniter unit (30) being tightly connected to the hollow piston (20) is arranged inside the hollow piston (20). The invention excels by the fact that in the idle state the hollow piston (20) is received in the cylinder (10) and in the activated state it protrudes at least partially from the cylinder (10) so that the actuator has a larger total length in the activated state than in the idle state. The invention further relates to an actuator and a vehicle safety system comprising such actuator as well as to an actuating method.
摘要:
A gas generator (10) comprises an outer housing, which has at least two housing parts (12), which are connected to each other, in the form of a diffuser bowl (14) with outflow openings (16) towards the outside and a cover (20) directly connected to the diffuser bowl (14). Inside the gas generator (10), at least one first and one second combustion chamber (30, 36) are provided, wherein the first combustion chamber (30) is delimited by an inner wall (32) and the second combustion chamber (36) is located within the space delimited by the diffuser bowl (14) and the cover (20). The diffuser bowl (14) and/or the cover (20) comprise a section (24) that is shaped, in particular deep-drawn, into an indentation, forming at least partially a circumferential section of the inner wall (32).
摘要:
The invention relates to a bursting diaphragm (14) for an inflator (10) comprising at least one predetermined breaking contour (24) destroyable upon activation of the inflator (10), wherein a shock wave can be generated. In accordance with the invention, the predetermined breaking contour (24) includes a through hole (25) on at least one end point (27), especially on all end points (27).
摘要:
The invention relates to an unlocking device (10), especially for a vehicle protection device, comprising a locking bar (16) which in a locked position establishes a connection positive at least in portions between a first component (12) to be unlocked and a second component (14) and permits relative motion of the two components (12, 14) in an open position. The unlocking device (10) further comprises a pyrotechnical actuator (18) including a pyrotechnical element (20) having a propelling charge and a piston-cylinder unit (22) having a piston (24) and a cylinder (26), wherein motion of the piston (24) or the cylinder (26) can be generated due to activation of the propelling charge upon ignition thereof and wherein the piston-cylinder unit (22) is connected to the locking bar (16) without redirection so that upon motion of the piston (24) or the cylinder (26) the locking bar is movable from its locked position into its open position.