Fluid reaction surfaces (i.e. – impellers) – Articulated – resiliently mounted or self-shifting impeller... – Nonmetallic resilient mounting
Patent
1980-07-07
1983-01-18
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Articulated, resiliently mounted or self-shifting impeller...
Nonmetallic resilient mounting
416141, B64C 2738
Patent
active
043690181
ABSTRACT:
The wings of a hingeless helicopter rotor are secured to the head of the rotor by connecting elements of fiber compound materials. Each connecting element has at least two outer layers of fiber compound materials and an intermediate layer of .+-..beta.-fiber compound materials between the outer layers. The intermediate layer is bonded to the outer layers by a suitable adhesive. The intermediate layer takes up the central portion of the securing flange of the rotor head and its axial thickness increases radially inwardly. The intermediate layer has four side lobes which extend laterally out of the confines of the outer layers. These side lobes are connected by bolts to the rotor head. This structure provides a strong connection in which the outer layers are not weakened. Effects of the lead-lag movement of the rotor wings and of any torsion of the connecting elements are minimized and the fictitious hinges are located close to the rotational axis even within the zone defined by the rotor head flange.
REFERENCES:
patent: 3874815 (1975-04-01), Baskin
patent: 3999887 (1976-12-01), McGuire
patent: 4008980 (1977-02-01), Noehren et al.
patent: 4047839 (1977-09-01), Ferris et al.
patent: 4053258 (1977-10-01), Mouille
patent: 4093400 (1978-06-01), Rybicki
patent: 4104003 (1978-08-01), Mouille
patent: 4293277 (1981-10-01), Aubry
Brunsch Klaus
Nowak Franz
Fasse W. G.
Gould D. F.
Messerschmitt-Boelkow-Blohm GmbH
Powell Jr. Everette A.
LandOfFree
Rotor head structure with stacked connecting elements, especiall 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 head structure with stacked connecting elements, especiall, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotor head structure with stacked connecting elements, especiall will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-135971