Safety device for a motor vehicle
First Claim
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1. A safety device for a motor vehicle comprising:
- a gas generator;
an airbag connected to be filled by the gas generator in the event of an accident; and
at least one orifice, through which gas can flow and a flow resistance of which is variable;
wherein the orifice is duct shaped, at least in a partial region;
the duct-shaped partial region has a flow resistance which adjusts automatically as a function of flow velocity of gas flowing through the orifice; and
said flow resistance increases with increasing flow velocity of gas flowing through said orifice.
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Abstract
A safety device for a motor vehicle has a gas generator, an airbag and at least one orifice through which gas flows. The state of fill of the airbag adjusts automatically to each load case by providing an orifice having a duct shape at least in a partial region. The flow resistance in this partial region adjusts automatically as a function of the velocity of the gas flow flowing through the orifice.
59 Citations
21 Claims
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1. A safety device for a motor vehicle comprising:
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a gas generator;
an airbag connected to be filled by the gas generator in the event of an accident; and
at least one orifice, through which gas can flow and a flow resistance of which is variable;
whereinthe orifice is duct shaped, at least in a partial region;
the duct-shaped partial region has a flow resistance which adjusts automatically as a function of flow velocity of gas flowing through the orifice; and
said flow resistance increases with increasing flow velocity of gas flowing through said orifice. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 21)
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18. A method of regulating a pressure response in an airbag of a vehicle airbag safety restraint system, comprising:
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providing an orifice for flow of gas into or out of said airbag; and
adjusting a fluid flow resistance of said orifice as a function of a flow velocity of gas flowing through said orifice;
wherein said adjusting step comprises increasing said fluid flow resistance with increasing flow velocity of said gas. - View Dependent Claims (19, 20)
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Specification