Gas generator for airbag systems having a centrifugal force...

B - Operations – Transporting – 60 – R

Patent

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Details

B60R 21/26 (2006.01)

Patent

CA 2221652

A gas generator, in particular for inflating a passenger-protecting airbag, has a load container (3) in which is arranged a gas-building material (4), an electric igniting element (1) to ignite the gas-building material (4), a whirl chamber (25) designed as a centrifugal dust separator and a plunging pipe (18) that is arranged on the axis of symmetry (26) of the whirl chamber (25) and projects into the whirl chamber (25). The cleaned gas stream reaches an outflow chamber (27) in the airbag through said pipe (18). In order to improve the cleaning effect with a compact and simple device, load container (3), igniting element (1), whirl chamber (25), plunging pipe (18) and outflow chamber (27) are arranged on a common axis of symmetry (26) and the whirl chamber (25), plunging pipe (18) and outflow chamber (27) form a module that is coupled to the load container (3) and igniting element (1) by a connecting element (7).

Le générateur de gaz décrit, qui sert notamment pour gonfler un coussin de gaz de protection des passagers d'un véhicule, comprend un conteneur de charge (3) qui contient un matériau gazogène (4), un élément électrique d'allumage (1) qui allume le matériau gazogène (4), une chambre de turbulence (25) qui sert de dépoussiéreur à force centrifuge et un tube plongeur (18) monté sur l'axe de symétrie (24) de la chambre de turbulence (25) et qui fait saillie dans celle-ci. Le courant épuré de gaz parvient à une chambre d'écoulement (27) dans le coussin de gaz à travers ce tube plongeur (18). Afin d'améliorer l'effet d'épuration avec un dispositif compact et simple, le conteneur de charge (3), l'élément d'allumage (1), la chambre de turbulence (25), le tube plongeur (18) et la chambre d'écoulement (27) se situent sur un axe commun de symétrie (26) et la chambre de turbulence (25), le tube plongeur (18) et la chambre d'écoulement (27) forment un module couplé par un élément de liaison (7) au conteneur de charge (3) et à l'élément d'allumage (1).

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