公开(公告)号：EP2459443A1

公开(公告)日：2012-06-06

申请号：EP09847899.3

申请日：2009-07-27

Applicant: Bell Helicopter Textron Inc.

Inventor： HILL, Andrew, T. ,  SMITH, Michael, R. ,  LU, Zi ,  THO, Cheng-Ho

IPC: B64C25/56

CPC classification number: B64D25/00 ,  B64D2201/00

Abstract: A crash attenuation system for an aircraft includes an airbag carried by the aircraft that is inflatable generally adjacent an exterior of the aircraft. The airbag is in fluid communication with at least one vent passage for channeling gas from within the interior of the airbag to a region external to the airbag that allows the gas to escape without being obstructed by the airbag. A gas source is in fluid communication with the interior of the airbag for inflating the airbag. A vent valve is provided within the vent passage for controlling a flow of gas through the vent passage, thereby controlling deflation of the airbag. The vent valve is continuously adjustable to and between an open state, a closed state, and any number of partially open states.

公开(公告)号：EP2459443B1

公开(公告)日：2015-05-20

申请号：EP09847899.3

申请日：2009-07-27

Applicant: Bell Helicopter Textron Inc.

Inventor： HILL, Andrew, T. ,  SMITH, Michael, R. ,  LU, Zi ,  THO, Cheng-Ho

IPC: B64C25/56 ,  B64D25/00

CPC classification number: B64D25/00 ,  B64D2201/00

公开(公告)号：EP2200852A1

公开(公告)日：2010-06-30

申请号：EP07844510.3

申请日：2007-10-22

Applicant: Bell Helicopter Textron Inc.

Inventor： THO, Cheng-Ho ,  SMITH, Michael, R.

IPC: B60K28/12

CPC classification number: B64D25/00 ,  B64C25/52 ,  B64C2025/325 ,  B64D2201/00

Abstract: A crash attenuation system for an aircraft, the system having an airbag carried by the aircraft and inflatable generally adjacent an exterior of the aircraft. The airbag has at least one vent for releasing gas from the interior of the airbag. A gas source is in fluid communication with the interior of the airbag for inflating the airbag with gas generated provided by the first gas source. A vent valve is provided for controlling a flow of gas through each vent, each vent valve being selectively configurable between an open state, in which gas can pass through the associated vent from the interior of the airbag, any number of intermediate states, in which the vent is partially open, and a closed state, in which gas is retained within the interior of the airbag.

公开(公告)号：EP1951572A2

公开(公告)日：2008-08-06

申请号：EP06851913.1

申请日：2006-11-08

Applicant: Bell Helicopter Textron Inc.

Inventor： SMITH, Michael, R. ,  CHOWDHURY, Somen ,  THO, Cheng-Ho

IPC: B64D25/14

CPC classification number: B64D25/18 ,  B64C27/006 ,  B64D2201/00

Abstract: A crash attenuation system for an aircraft, the system having an airbag carried by the aircraft and inflatable generally adjacent an exterior of the aircraft. The airbag has at least one vent for releasing gas from the interior of the airbag. A first gas source is in fluid communication with the interior of the airbag for inflating the airbag with gas generated provided by the first gas source. A vent valve is provided for controlling a flow of gas through each vent, each vent valve being selectively configurable between an open state, in which gas can pass through the associated vent from the interior of the airbag, and a closed state, in which gas is retained within the interior of the airbag. A second gas source is provided for at least partially re-inflating the airbag after venting of gas through the at least one vent.