Fluid reaction surfaces (i.e. – impellers) – Articulated – resiliently mounted or self-shifting impeller... – Resilient bias or mount
Patent
1982-01-19
1983-09-13
Hornsby, Harvey C.
Fluid reaction surfaces (i.e., impellers)
Articulated, resiliently mounted or self-shifting impeller...
Resilient bias or mount
416141, 416226, B64C 2738
Patent
active
044039182
ABSTRACT:
A helicopter rotor system with a plurality of identical rotor blades each of which includes a skin that forms an interior region, a counterweight rod and a bundle of longitudinally-extending fibers in the region. The bundle continues outside of the region, and there it includes a bight portion with a pair of arms and a bend. The fibers in the region are continuations of the fibers in the bight portion. A torque tube is attached to the counterweight rod, and a bearing stabilizes the torque tube relative to the mast, but does not transfer any appreciable centrifugal load. This bearing permits rotation (feathering) of the torque tube around its own axis, and lateral movement in any direction from the torque tube axis, around the center of this bearing (lead lag, and flapping). The bight portion is progressively shaped from a single flat portion bent directly around the mast, through a pair of separate channel sections to a bundle adjacent to the counterbalance rod. The fibers are bonded together, and in the said region they are bonded not only to each other, but also to the counterweight rod, and to the skin. The blades are angularly spaced apart, and their flat portions are stacked one on top of the other. Attachment means, preferably fasteners and mounting plates, attaches the stack of flat portions to the mast, where they transfer the centrifugal load to the mast and are driven directly by it.
REFERENCES:
patent: 2757745 (1956-08-01), Verhage et al.
patent: 4111605 (1978-09-01), Roman et al.
patent: 4227857 (1980-10-01), Reyes
patent: 4292009 (1981-09-01), Weiland et al.
Hornsby Harvey C.
Mon Donald D.
Peterson Christine A.
LandOfFree
Hubless, hingeless and bearingless helicopter rotor system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hubless, hingeless and bearingless helicopter rotor system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hubless, hingeless and bearingless helicopter rotor system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1727718