Hybrid gas generator, method for operating a hybrid gas generator, airbag module and vehicle safety system

A hybrid gas generator comprising:

• a compressed gas chamber closed off by a first bursting membrane and a second bursting membrane;
• an igniting unit comprising an igniter;
• a first pyrotechnic agent configured to be ignited by the igniter;
• and
• a second pyrotechnic agent configured to be ignited by burning off of the first pyrotechnic agent, the second pyrotechnic agent being configured to burn off slowly as compared to the first pyrotechnic agent;
• wherein the second pyrotechnic agent is disposed in the compressed gas chamber and the first pyrotechnic agent is contained within a holder of the igniting unit outside the compressed gas chamber, the first bursting membrane being secured to the holder and separating the first pyrotechnic agent in the holder from the second pyrotechnic agent in the compressed gas chamber;
• wherein the separation of the first and second pyrotechnic agents is configured so that the second bursting membrane opens due to a pressure rise in the compressed gas chamber resulting from the burning off of the first pyrotechnic agent, wherein the second pyrotechnic agent is disposed in a combustion chamber within the compressed gas chamber, the combustion chamber being axially separated from a pyrotechnic chamber in the holder where the first pyrotechnic agent is contained, and wherein the combustion chamber is spaced apart from the pyrotechnic chamber by a resilient element.