Rotor Hub for a Helicopter.

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Abstract:

This document describes a rotor hub for a helicopter having a hub member rotatably mounted to a rotor mast stationarily attached to the fuselage of a helicopter and forming an air plenum for circulation control. A shaft, which is driven from a transmission, drives a torque plate which is attached to the top of the hub member. A flexible hub plate is attached to a flange on the hub member and has a plurality of axles to which the rotor blades are individually attached. Air from inside the plenum is piped to the rotor blades through flexible ducts. The flexible hub plate is designed to provide a high degree of stiffness in the plane of rotation and a lesser degree of stiffness in a plane normal to the plane of rotation. Author

Author(s):
Mccoubrey, George A.
Author Organization(s):
DEPARTMENT OF THE NAVY WASHINGTON D C
Descriptive Note:
Patent Application,
Pagination:
0012

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Availability: This Government-owned Invention Available For U.s. Licensing And, Possibly, For Foreign Licensing. Copy Of Application Available Ntis.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PAT-APPL-924 024
 Subject Terms
Communities of Interest:
Air Platforms
Descriptor(s):
*Patent applications, *Helicopter rotors, *Hubs, Control, Circulation, Pneumatic actuators, High velocity, Lift
Field(s)/Group(s):
Helicopters
Report Date:
1978 Jul 12