Patent ID: 6402190
Filing Date: 2002-06-11
Classification: B60R,Y10T

Abstract:
A non return valve for an airbag of a vehicle passenger retention system, which is adapted to form a flow connection between a first and a second airbag chamber, the non return valve comprising:a connection hose which is adapted to be connected to the first and the second airbag chambers, said connection hose having a foldable fabric inlay that subdivides the connection hose into a flow passage which is adapted to connect the first and the second airbag chambers and a pressure chamber which is adapted to be connected with the second airbag chamber, wherein the fabric inlay is adapted to open the flow passage when the internal pressure in the second airbag chamber is lower compared to the internal pressure in the first airbag chamber, and wherein when the internal pressure is higher in the second airbag chamber, the fabric inlay is adapted to close the flow passage by means of the internal pressure in the pressure chamber.