Active vent and re-inflation system for a crash attentuation airbag
First Claim
1. A crash attenuation system for an aircraft, the system comprising:
- a first airbag inflatable generally adjacent to an exterior of the aircraft;
a second airbag inflatable generally adjacent to an exterior of the first airbag; and
a vent system, the vent system comprising;
a vent passage being configured to allow gas to escape from within the first airbag during an impact into the second airbag;
wherein the first airbag is inflated and the second airbag is uninflated before impact.
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Accused Products
Abstract
A crash attenuation system has an airbag inflatable generally adjacent to an exterior of the aircraft. The system includes a gas generator in fluid communication with an interior of the airbag. The system also includes a vent system having a vent passage supported by the aircraft, the vent passage being configured to allow gas to escape from within the airbag during an impact to a second set of airbags for flotation. The vent system also includes an actuator door for sealing the vent passage, thereby preventing gas from leaving the airbag. The actuator door is actuated by an actuator, the actuator being in fluid communication with the gas generator through an actuator duct. The system operates such that deployment of gas from the gas generator causes the actuator to inflate, thereby causing the actuator door to seal the vent passage. The gas generator is configured to re-inflate the airbag after the actuator door seals the vent passage.
96 Citations
17 Claims
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1. A crash attenuation system for an aircraft, the system comprising:
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a first airbag inflatable generally adjacent to an exterior of the aircraft; a second airbag inflatable generally adjacent to an exterior of the first airbag; and a vent system, the vent system comprising; a vent passage being configured to allow gas to escape from within the first airbag during an impact into the second airbag; wherein the first airbag is inflated and the second airbag is uninflated before impact. - View Dependent Claims (2, 3, 4, 5, 6)
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7. The crash attenuation system for an aircraft, comprising:
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a inner airbag inflatable generally adjacent to an exterior of the aircraft; an outer airbag inflatable generally adjacent to an interior of the first airbag; and a vent system, the vent system comprising; a vent passage being configured to allow gas to escape from within the inner airbag during an impact into the outer airbag; wherein the inner airbag is inflated and the outer airbag is uninflated before impact. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. The crash attenuation system for an aircraft, comprising:
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an inner set of airbags inflatable generally adjacent to a position beneath an exterior of the aircraft; an outer set of airbags inflatable generally adjacent the inner set airbags; and a vent system, the vent system comprising; a vent passage being configured to allow gas to escape from within the inner airbags during an impact into the outer airbags; wherein the inner set of airbags are inflated and the outer set of airbags are uninflated before impact.
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Specification