Title:
最適速度ティルト・ローター
Document Type and Number:
Japanese Patent JP2005502540
Kind Code:
A
Abstract:
A variable speed helicopter tilt rotor system and method for operating such a system are provided which allow the helicopter rotor to be operated at an optimal angular velocity in revolutions per minute (RPM) minimizing the power required to turn the rotor thereby resulting in helicopter performance efficiency improvements, reduction in noise, and improvements in rotor, helicopter transmission and engine life. The system and method provide for an increase in helicopter endurance and range. The system and method also provide a substantial improvement in helicopter performance during take-off, hover and maneuver. All such improvements are valid in helicopter mode when the helicopter is supported by rotor vertical lift, in airplane mode when the helicopter is supported by wing lift and the rotor is tilted forward to provide propulsive thrust and in conversion from helicopter mode to airplane mode.
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Inventors:
Carlem, Abraham Yi.
Application Number:
JP2003528454A
Publication Date:
January 27, 2005
Filing Date:
August 12, 2002
Export Citation:
Assignee:
Carlem, Abraham Yi.
International Classes:
B64C27/04; B64C27/33; B64C27/46; B64C27/467; B64C27/473; B64C29/00; (IPC1-7): B64C29/00; B64C27/46
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Masaya Nishiyama
Jun Tsuruta
Tetsuro Shimada
Masaya Nishiyama