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US 9,308,978 B2Granted
Marine propeller having demountable blades
OwnerMehmet Nevres Ulgeninventor
Life of this patent
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Abstract
A vessel propeller comprising a cylindrical hub rotatable about a rotation axis and a plurality of blades provided radially around the hub with a certain pitch angle. The propeller is characterized in that the hub comprises a blade connection housing helically formed on the cylindrical surface of the hub for the demountable connection of each blade to the hub; each blade comprises a hub connector to be placed in the respective connection housing; and plurality of external connecting members extending axially along the hub thickness for rigidly connecting the hub and plurality of blades.
Claims9
A vessel propeller (1) comprising:
- a cylindrical hub (2) rotatable about a rotation axis and a plurality of blades (3) provided radially around the cylindrical hub (2) with a certain pitch angle, wherein the cylindrical hub (2) comprises a plurality of blade connection housings (4) helically formed inside the cylindrical surface of the cylindrical hub for the demountable connection of each of the plurality of blades (3) to the cylindrical hub (2);
- the cylindrical hub (2) comprises connecting member holes (7) arranged around the cylindrical hub rotation axis and extending along the cylindrical hub in an inner wall of the cylindrical hub;
- each of the plurality of blades (3) includes a hub connector (5) having a plurality of connecting member openings (8) configured to be placed in each of the plurality of blade connection housings (4);
- and
- each hub connector (5) being positioned in its respective connection housing (4) and a plurality of connecting members (6) each extending axially along the respective connecting member hole (7) and connecting member opening (8) for rigidly connecting the cylindrical hub (2) and plurality of blades (3).
2 more elements
Dependencies are inferred from the claim text.