Rotary-wing aircraft rotor with constant velocity drive
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United States of America Patent
Stats
-
Feb 24, 2004
Grant Date -
Sep 25, 2003
app pub date -
Feb 28, 2003
filing date -
Mar 20, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A tilting rotor of a convertible aircraft comprises, between the mast and the hub, a constant velocity drive mechanism and pivoting arrangement comprising two gimbals, each of which is driven by the mast and pivots about one respectively of two diametral axes by two diametrically opposite bearings. Each gimbal is also hinged to the hub by ball joint connections diametrically opposite and centred respectively in a radial plane passing through the axis of the mast and through the diametral axis about which the other gimbal pivots. The two resulting trains transmitting torque between the mast and the hub have substantially the same torsional rigidity, and one at least of the components of each torque transmission train exhibits a flexibility in deformation about the axis of rotation of the hub.
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