Patent ID: 8376396
Filing Date: 2013-02-19
Classification: B60R

Abstract:
1. An airbag module for a vehicle comprising: a gas generator for generating a gas; and a multi-chamber airbag operatively connected to the gas generator for receiving the gas therefrom, the airbag defining at least one first inflation chamber, at least one second inflation chamber, at least one third inflation chamber and at least one fourth inflation chamber, the airbag including a plurality of internal vents configured to allow selective communication between the at least one first chamber and each of the at least one second chamber and the at least one third chamber and selective communication between one of the at least one second chamber and the at least one third chamber and the at least one fourth chamber, the plurality of internal vents configured to create a higher pressure in one or more selective chambers by restricting an ability of the gas to escape the one or more selective chambers, wherein an order of internal venting between the respective inflation chambers is predetermined so as to control pressure and inflation of the multi-chamber airbag, wherein the airbag includes a plurality of internal baffles which define the inflation chambers, the internal baffles forming a generally Y-shaped first inflation chamber, and the fourth inflation chamber is at least partially received within an upper recess of the first inflation chamber.