Fluid reaction surfaces (i.e. – impellers) – Articulated – resiliently mounted or self-shifting impeller... – Resilient bias or mount
Patent
1978-12-26
1981-01-06
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Articulated, resiliently mounted or self-shifting impeller...
Resilient bias or mount
416134A, B64C 2748
Patent
active
042433592
ABSTRACT:
The present hingeless rotor structure, especially for rotary wing aircraft, omprises at least one pair of rotor blades, whereby the blades of a pair are arranged diametrically opposite each other. The blades are secured to a rotor head for proper blade angle adjustment. Each blade has its root or radially inner end secured in a blade root sleeve which in turn is held in a respective blade angle bearing bushing. The blades of a pair are interconnected by a tension resistant, torsionally yielding member. One bearing which is pressure loadable in the direction of the longitudinal blade axis is provided for each blade pair between one of the respective blade root sleeves and the corresponding blade angle bearing bushing. The tension resistant, torsionally yielding member is capable of a certain stretching or elongation during operation. In order to compensate for such an elongation, the tension resistant, torsionally yielding members are installed in such a manner that in the rest or non-rotating condition of the blades, the center is radially displaced from the axis of rotation of the rotor head toward the respective pressure loadable bearing by one half of the length of said elongation.
REFERENCES:
patent: 3465831 (1969-09-01), Ferris et al.
patent: 3470962 (1969-10-01), Cure
patent: 3578877 (1971-05-01), Mautz
patent: 3640643 (1972-02-01), Monti
Mautz Karlheinz
Schwarz Alois
Stephan Michael
Fasse W. G.
Gould D. F.
Messerschmitt-Bolkow-Blohm Gesellschaft mit beschrankter Haftung
Powell Jr. Everette A.
LandOfFree
Rotor structure, especially for hingeless rotary wing aircraft does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotor structure, especially for hingeless rotary wing aircraft, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotor structure, especially for hingeless rotary wing aircraft will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-282696