Fluid reaction surfaces (i.e. – impellers) – Articulated – resiliently mounted or self-shifting impeller... – Nonmetallic resilient mounting
Patent
1979-07-05
1981-08-04
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Articulated, resiliently mounted or self-shifting impeller...
Nonmetallic resilient mounting
416136, 416138, 416168R, B64C 1106, B64C 1132
Patent
active
042819660
ABSTRACT:
A variable-pitch, multi-blade propeller specially usable as a rear rotor of a rotary-wing aircraft and a process for manufacturing the same are described. The propeller comprises a number of pairs of blades emanating from a central hub, each pair comprising a single elongate strip secured at its center to the hub. The strip is composed of two flat bundles of fibres and defining an aperture for a sliding shaft at their center. The shaft is used to control the pitch angles of the blades and aerodynamic blade shells are secured to the fibre bundles by adhesive synthetic cellular or foam material.
REFERENCES:
patent: 3484174 (1969-12-01), McCoubrey
patent: 3594097 (1971-07-01), Mouille et al.
patent: 3669566 (1972-06-01), Bourquardez et al.
patent: 3762834 (1973-10-01), Bourquardez et al.
patent: 4008980 (1977-02-01), Noehren et al.
patent: 4047839 (1977-09-01), Ferris et al.
Declercq Marc A.
Duret Maurice L.
Lamarche Bernard L. J.
Martin Robert D.
Flocks Karl W.
Powell Jr. Everette A.
Societe Nationale Industrielle Aerospatiale
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