Main helicopter rotor
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United States of America Patent
Stats
-
Aug 4, 1992
Grant Date -
N/A
app pub date -
Apr 5, 1991
filing date -
Apr 6, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A main helicopter rotor having a number of blades and wherein a drive shaft supports, at its top end, an annular hub integral with the drive shaft and in turn supporting, via a spherical elastomeric joint having its center on the axis of the drive shaft, and an elastic axial suspension, a toroidal body surrounding the drive shaft. Each blade is connected to the hub by a connecting element extending through both the hub and the toroidal body, and connected respectively to the same by a first and second spherical elastomeric bearing.
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