초록 ▼

A multi-stage gas generator comprises a housing with an outer wall and also inner walls, at least two combustion chambers filled with at least one propellant charge, one igniter each associated with a propellant charge for the independent activation of each propellant charge, and at least one therma

A multi-stage gas generator comprises a housing with an outer wall and also inner walls, at least two combustion chambers filled with at least one propellant charge, one igniter each associated with a propellant charge for the independent activation of each propellant charge, and at least one thermal insulation arrangement between the propellant charges. The arrangement reduces a transport of thermal energy, generated on the ignition of a propellant charge, to the other non-ignited propellant charge to such a high extent that the non-ignited propellant charge remains below its autogenous ignition temperature. Instead of or additionally to the thermal arrangement a cooling arrangement may be provided.

대표청구항 ▼

[ What is claimed is:] [1.]1. A multi-stage gas generator, comprising:an outer housing with a cylinder outer wall centered on an axis,at least spaced apart first and second combustion chambers in said housing, each combustion chamber being filled with a propellant charge;each one of said combustion

[ What is claimed is:] [1.]1. A multi-stage gas generator, comprising:an outer housing with a cylinder outer wall centered on an axis,at least spaced apart first and second combustion chambers in said housing, each combustion chamber being filled with a propellant charge;each one of said combustion chambers having an associated igniter for the independent activation of each propellant charge; andfirst and second filter housings centered on said axis and located between said first and second combustion chambers;said first filter housing having a first filter chamber containing a first cylindrical filter centered on said axis, a first wall permitting first gas flow into the first filter chamber from said first combustion chamber, a second wall spaced from said second filter housing, and first gas flow openings for directing said first gas flow radially from said first filter chamber, said first gas flow being directed radially through said first cylindrical filter;said second filter housing having a second filter chamber containing a second cylindrical filter centered on said axis, a third wall permitting second gas flow from said second combustion chamber into said second filter chamber, a fourth wall spaced from said second wall, and second gas flow openings for directing said second gas flow radially from said second filter chamber, said second gas flow being directed radially through said second cylindrical filter;at least one thermal insulation arrangement between said second and fourth walls, which arrangement reduces a transport of thermal energy, to the other non-ignited propellant charge such that said non-ignited propellant charge remains below its autogenous ignition temperature, and where said first and second filter housings are arranged between said combustion chambers in a manner that gas is prevented from flowing from one filter chamber to the other filter chamber.