Abstract: An inflator as well as a method of manufacturing an inflator, a module including an inflator and an airbag module. In an inflator, especially for a protective device in a vehicle, comprising plural components a sealant is applied in the area of abutting components, especially a sealant which adheres to both abutting components.

Abstract: An inflator for a protective device in a vehicle includes a diffuser (10) forming a substantially rotation-symmetric external housing of the inflator with a closing member (12), wherein the diffuser (10) includes a plurality of discharge orifices (78) arranged in a row, and which are of circular shape. The inflator also includes an igniter sleeve (38) which at least partially encloses an igniter (34) and an igniter chamber (42) filled with a booster charge and is adjacent to a first combustion chamber (44) filled with fuel, wherein the igniter sleeve (38), related to a central axis B of the igniter sleeve (38), has overflow orifices (98) unevenly distributed in circumferential direction.

Abstract: The invention relates to an inflatable airbag (1) for the protection of a person comprising a flexible sheath (10) which comprises at least two fingerlike extensions (11), wherein the flexible sheath (10) delimits a closed gas expansion chamber by the fingerlike extensions (11). The invention excels by the fact that the fingerlike extensions (11) are connected, especially stitched, glued or welded, to each other so that in an inflated state the airbag (1) takes a three-dimensional shape. The invention further relates to an airbag module, a vehicle occupant restraint system as well as vehicle parts comprising such airbag.

Abstract: An inflator for a protective device in a vehicle includes a diffuser (10) forming a substantially rotation-symmetric external housing of the inflator with a closing member (12), wherein the diffuser (10) includes a plurality of discharge orifices (78) arranged in a row, and which are of circular shape. The inflator also includes a combustion chamber sleeve (60) which at least partially encloses a combustion chamber (56) filled with fuel, wherein the combustion chamber sleeve (60) is designed such that it changes its shape by pressure formed during combustion of the fuel so as to release a discharge orifice (112) leading out of the combustion chamber (56) into a further combustion chamber (44) of the inflator, for a combustion gas formed during combustion of the fuel.

Abstract: The production of a quartz glass grit comprises the granulation of pyrogenetically produced silicic acid, and the formation of a SiO2 granulate and the vitrification of the SiO2 granulate using a treatment gas, which contains at least 30% by volume of helium and/or hydrogen. Said process is time consuming and cost intensive.

Abstract: An inflator for a protective device in a vehicle includes a diffuser (10) forming a substantially rotation-symmetric external housing of the inflator with a closing member (12), wherein the diffuser (10) includes a plurality of discharge orifices (78) arranged in a row, and which are of circular shape. The inflator also includes a filter (46) and a combustion chamber component at least partially enclosing at least one of a combustion chamber (56) and a combustion chamber sleeve (60), wherein the filter (46) extends in a ring-shaped manner about the combustion chamber (56) and, at a position of its ring-shaped extension, includes a critical filter portion (120) which is closer to the combustion chamber component than the remaining filter areas situated at its ring-shaped extension, wherein the critical filter portion (120) has a reduced thickness compared to areas of the filter that are adjacent to the critical filter portion (120).

Abstract: An inflator, especially for a protective device in a vehicle, includes a diffuser (10) which preferably forms a substantially rotation-symmetric external housing of the inflator with a closing member (12). The diffuser (10) includes more than 12, preferably more than 14, further preferably 23 discharge orifices (78) arranged in a row. Moreover, the inflator exhibits a plurality of further peculiarities.

Abstract: A vehicle safety system includes a module including an airbag and an inflator. The inflator includes a housing (12) in which a combustion chamber (16) containing a pyrotechnic propellant is arranged in which hot gas is generated and which housing includes at least one escape orifice (22) toward the environment of the inflator (10), as well as a coolant reservoir (24) arranged in the housing (12) in which coolant is accommodated prior to activation of the inflator (10) and which has at least one coolant outlet orifice (28?). The coolant outlet orifice (28) is arranged in direct vicinity of the outlet orifice (22). Upon activation of the inflator (10) coolant flows out of the inflator into the protection system and wets an adjacent wall (32) of the protection system against which also the hot gas is flowing.

Abstract: A method for producing a large quartz-glass pipe is provided. In a first forming step, an intermediate cylinder made of quartz glass and having an intermediate-cylinder wall thickness and outside diameter is formed by using a forming tool and is then cooled. In a second shaping step, at least one length segment of the cooled intermediate cylinder is fed to a heating zone, heated to a softening temperature zone by zone therein, and, while rotating about the longitudinal axis of the intermediate cylinder, shaped into the large quartz-glass pipe having a final wall thickness and outside diameter. The quartz glass is synthetically produced and has an average hydroxyl group content of 10 ppm by weight or less. If the intermediate cylinder is divided into length segments of 1 cm, adjacent length segments have a difference of less than 2 ppm by weight in the average hydroxyl group content thereof.

Abstract: A method for producing synthetic quartz glass by fusion of SiO2 granulate involves synthesizing amorphous SiO2 primary particles, granulating the amorphous SiO2 primary particles to form an open-pore SiO2 granulate, sintering the open-pore SiO2 granulate by heating in a sintering atmosphere at a sintering temperature and for a sintering period to form a densified SiO2 granulate, and melting the densified SiO2 granulate at a melting temperature to form the synthetic quartz glass. To provide an inexpensive production of low-bubble transparent components of quartz glass despite the use of still open-pore SiO2 granulate, the sintering atmosphere, sintering temperature and sintering duration are adjusted such that the densified SiO2 granulate still comprises open pores but manifests a material-specific infrared transmission T1700 at a wavelength of 1700 nm. This transmission is in the range of 50-95% of the infrared transmission T1700 of quartz glass granules of the same material.

Abstract: An inflator for a protective device in a vehicle includes a diffuser (10) forming a substantially rotation-symmetric external housing of the inflator with a closing member (12), wherein the diffuser (10) includes a plurality of discharge orifices (78) arranged in a row, and which are of circular shape. The inflator also includes a filter (46) and a combustion chamber component at least partially enclosing at least one of a combustion chamber (56) and a combustion chamber sleeve (60), wherein the filter (46) extends in a ring-shaped manner about the combustion chamber (56) and, at a position of its ring-shaped extension, includes a critical filter portion (120) which is closer to the combustion chamber component than the remaining filter areas situated at its ring-shaped extension, wherein the critical filter portion (120) has a reduced thickness compared to areas of the filter that are adjacent to the critical filter portion (120).

Abstract: An inflator for a protective device in a vehicle includes a diffuser (10) forming a substantially rotation-symmetric external housing of the locator with a dosing member (12), wherein the diffuser (10) includes a plurality of discharge orifices (78) arranged in a row, and which are of circular shape. The inflator also includes a circumferential wall (18, 22) which surrounds a combustion chamber (44) and a filter (46) which extends at least partially along the wall (16, 22), wherein the wall (16, 22) has at least one supporting portion (124) which constitutes an axial support for the filter (46) and is integrally formed with the wall (16, 22), and wherein either plural supporting portions (124) are formed by embossed beads, the heads being spaced apart from each other in circumferential direction, and wherein a supporting portion (124) is formed by a completely circumferential embossed bead.

Abstract: An inflator for a protective device in a vehicle includes a diffuser (10) forming a substantially rotation-symmetric external housing of the inflator with a dosing member (12), wherein the diffuser (10) includes a plurality of discharge orifices (78) arranged in a row, and which are of circular shape. The inflator also includes an igniter sleeve (38) which at least partially encloses an igniter (34) and an igniter chamber (42) filled with a booster charge and is adjacent to a first combustion chamber (44) filled with fuel, wherein the igniter sleeve (38), related to a central axis B of the igniter sleeve (38), has overflow orifices (98) unevenly distributed in circumferential direction.

Abstract: An inflator for a protective device in a vehicle includes a diffuser (10) forming a substantially rotation-symmetric external housing of the inflator with a closing member (12), wherein the diffuser (10) includes a plurality of discharge orifices (78) arranged in a row, and which are of circular shape. The inflator also includes a combustion chamber sleeve (60) which at least partially encloses a combustion chamber (56) filled with fuel, wherein the combustion chamber sleeve (60) is designed such that it changes its shape by pressure formed during combustion of the fuel so as to release a discharge orifice (112) leading out of the combustion chamber (56) into a further combustion chamber (44) of the inflator, for a combustion gas formed during combustion of the fuel.

Abstract: An inflator as well as a method of manufacturing an inflator, a module including an inflator and an airbag module. In an inflator, especially for a protective device. In a vehicle, comprising plural components a sealant is applied in the area of abutting components, especially a sealant which adheres to both abutting components.

Abstract: 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.

Abstract: Build-up granulation and compaction granulation methods are generally known for producing granules from porous inorganic material. In order to allow a cost-efficient yet also reproducible production of porous granules having a more pronounced hierarchical pore structure, the invention relates to a method comprising the following steps: (a) supplying a feedstock flow to a reaction zone in which the feedstock is converted to material particles by means of pyrolysis or hydrolysis, (b) depositing the material particles on a deposition surface (1a) forming a soot layer (5), (c) thermally hardening the soot layer (5) to form a porous soot plate (5a), and (d) comminuting the soot plate (5a) to form porous granules (13).

Abstract: 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.

Abstract: An inflator as well as a method of manufacturing an inflator, a module including an inflator and an airbag module. In an inflator, especially for a protective device in a vehicle, comprising plural components a sealant is applied in the area of abutting components, especially a sealant which adheres to both abutting components.

Abstract: A process for forming shaped three-dimensional products is described made from a composition containing at least one filler and an aromatic liquid crystal polymer. In one embodiment, the process includes forming a substrate such as a film, a sheet or a tube, through an extrusion process. Once the substrate is formed, the substrate is then heated and fed to a shaping process. The shaping process may comprise a thermal forming process or a blow molding process. In order to form the three-dimensional products, the aromatic liquid crystal polymer has a high heat of crystallization, a high melt temperature and/or a high melt viscosity.