Invention Grant
- Patent Title: Propulsive anti-torque system for rotorcraft
- Patent Title (中): 旋翼飞机推进式反扭矩系统
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Application No.: US11662559Application Date: 2004-09-28
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Publication No.: US07731121B2Publication Date: 2010-06-08
- Inventor: Dudley E. Smith , Walter C. Joiner , Paul J. Madej , Charles L. Hollimon , Daniel B. Robertson
- Applicant: Dudley E. Smith , Walter C. Joiner , Paul J. Madej , Charles L. Hollimon , Daniel B. Robertson
- Applicant Address: US TX Fort Worth
- Assignee: Bell Helicopter Textron Inc.
- Current Assignee: Bell Helicopter Textron Inc.
- Current Assignee Address: US TX Fort Worth
- Agent James E. Walton
- International Application: PCT/US2004/031752 WO 20040928
- International Announcement: WO2006/036147 WO 20060406
- Main IPC: B64C27/82
- IPC: B64C27/82

Abstract:
A rotorcraft having an enhanced configuration in which a simple wing and a propulsive anti-torque system are combined is disclosed. The propulsive anti-torque system includes an anti-torque thruster system in which a variable pitch fan is installed internal to the tail boom of the rotorcraft and an anti-torque thruster nozzle is mounted at the extremity of the tail boom. The fan is driven directly from the main rotor drive. The configuration and location of the fan allows the primary exhaust from the engine to be mixed with the compressed air flow from the fan. The mixed air flow from the fan and the engine passes through the tail boom and out the thruster nozzle.
Public/Granted literature
- US20080093500A1 Propulsive Anti-Torque System for Rotorcraft Public/Granted day:2008-04-24
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