A marine propeller composite blade an axially extending composite blade root including a dovetail wound in a partial spiral or helix around a centerline. Dovetail tapering down in width between clockwise and counter-clockwise dovetail sides of dovetail from dovetail bottom in a radially outwardly direction away from centerline. Marine propeller may include composite blade roots mounted in axially extending hub slots in a metallic hub, axially extending wedges disposed within the hub slots circumferentially between the blade roots and one of clockwise slot sides and counter-clockwise slot sides, and the wedges abutting the blade roots and the one of clockwise slot sides and counter-clockwise slot sides. Wedges and hub slots wound in a partial spiral or helix around a centerline. Radial retention means for radially retaining wedges in hub slots may include bolts engaging wedges and screwed into threaded holes in hub.
WOUND DOVETAIL WEDGE FOR MARINE PROPELLER RETENTION
19.04.2018
Patent
Elektronische Ressource
Englisch
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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