Marine vessel propeller, propeller blade and method for installing the marine vessel propeller
AssigneeWartsila Norway AS
InventorRobert Vogels
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AssigneeWartsila Norway AS
InventorRobert Vogels
Estimating the term…
A marine vessel propeller to convert engine rotational power into propulsive thrust is of a built-up propeller (BUP) type having a circular array of propeller blades, wherein each propeller blade is a single piece including a blade part and a base part. The base part has a generally circular inner surface with a number of radially extending cylindrical indents provided with planar end wall and fastening holes arranged through the base part at a location of the indents. A cylindrical insert is provided with a hole parallel to a longitudinal axis of the insert and arranged to fit into the indent, such that the propeller blades are attachable to a propeller shaft using exemplary fastening bolts through the fastening holes and inserts. A propeller blade and method for installing a marine vessel propeller are also disclosed.
A marine vessel propeller to convert engine rotational power into propulsive thrust when in use, wherein the propeller comprises:
A method for installing a marine vessel propeller of a built-up propeller (BUP) type circular array of propeller blades, wherein each propeller blade is a single piece having a blade part and a base part, the base part having a generally circular inner surface in which there is arranged a number of radially extending cylindrical indents provided with planar end wall and fastening holes arranged through the base part at a location of the cylindrical indents;
Dependencies are inferred from the claim text.