Invention Grant
- Patent Title: Marine vessel propulsion device
- Patent Title (中): 船舶推进装置
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Application No.: US13670613Application Date: 2012-11-07
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Publication No.: US08814614B2Publication Date: 2014-08-26
- Inventor: Takayoshi Suzuki , Noriyoshi Hiraoka
- Applicant: Yamaha Hatsudoki Kabushiki Kaisha
- Applicant Address: JP Shizuoka
- Assignee: Yamaha Hatsudoki Kabushiki Kaisha
- Current Assignee: Yamaha Hatsudoki Kabushiki Kaisha
- Current Assignee Address: JP Shizuoka
- Agency: Keating & Bennett, LLP
- Priority: JP2011-244662 20111108
- Main IPC: B63H21/22
- IPC: B63H21/22 ; B63H21/17 ; B63H21/14 ; B63H21/20

Abstract:
A marine vessel propulsion device includes a propeller rotatable around a propeller axis, a duct that surrounds the propeller around the propeller axis, an internal combustion engine that rotates the propeller relative the duct, and an electric motor that rotates the propeller relative to the duct. The propeller includes a plurality of blades, and a cylindrical rim that surrounds the plurality of blades around the propeller axis. The electric motor rotates the propeller by rotating the rim.
Public/Granted literature
- US20130115832A1 MARINE VESSEL PROPULSION DEVICE Public/Granted day:2013-05-09
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