Invention Grant
- Patent Title: Marine vessel propeller, propeller blade and method for installing the marine vessel propeller
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Application No.: US17689224Application Date: 2022-03-08
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Publication No.: US11952091B2Publication Date: 2024-04-09
- Inventor: Robert Vogels
- Applicant: Wärtsilä Norway AS
- Applicant Address: NO Rubbestadneset
- Assignee: WÄRTSILÄ NORWAY AS
- Current Assignee: WÄRTSILÄ NORWAY AS
- Current Assignee Address: NO Rubbestadneset
- Agency: BUCHANAN INGERSOLL & ROONEY PC
- Main IPC: B63H1/20
- IPC: B63H1/20

Abstract:
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.
Public/Granted literature
- US20220185438A1 Marine Vessel Propeller, Propeller Blade And Method For Installing The Marine Vessel Propeller Public/Granted day:2022-06-16
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