公开(公告)号：EP3800119A1

公开(公告)日：2021-04-07

申请号：EP20209609.5

申请日：2013-06-11

申请人： Bell Helicopter Textron Inc.

发明人： MARSHALL, Bryan ,  HITTE, Cory M. ,  SMITH, Dudley E. ,  FENNY, Carlos Alexander

IPC分类号： B64C27/00 ,  B64C27/12 ,  B64D27/24 ,  B64D27/02

摘要： Embodiments refer generally to systems and methods for providing autorotative enhancement for helicopters (120) using an autorotative assist unit (110) coupled to the transmission (102) of the helicopter (120). Methods of utilizing an autorotative assist unit (110) as well as retrofitting an autorotative assist unit (110) to an existing helicopter (120) are also disclosed. By employing an autorotative assist unit (110), improved autorotation may be achieved without the need to increase the weight of the rotor (108).

公开(公告)号：EP3434587A1

公开(公告)日：2019-01-30

申请号：EP18193690.7

申请日：2013-06-11

申请人： Bell Helicopter Textron Inc.

发明人： FENNY, Carlos Alexander ,  MARSHALL, Bryan ,  HITTE, Cory M. ,  SMITH, Dudley E.

IPC分类号： B64C27/12 ,  B64D27/02 ,  B64D27/24

摘要： Embodiments refer generally to systems and methods for providing autorotative enhancement for helicopters (120) using an autorotative assist unit (110) coupled to the transmission (102) of the helicopter (120). Methods of utilizing an autorotative assist unit (110) as well as retrofitting an autorotative assist unit (110) to an existing helicopter (120) are also disclosed. By employing an autorotative assist unit (110), improved autorotation may be achieved without the need to increase the weight of the rotor (108).