Title:
船尾ダクト
Document Type and Number:
Japanese Patent JP7405787
Kind Code:
B2
Abstract:
To provide a stern duct with easy adjustment of propulsion by being capable of increasing the propulsion without greatly changing number and configuration of ducts from a conventional structure.SOLUTION: A stern duct 1 comprises a duct body 11 which is provided around a stern tube 9 in stern before a propeller 5 of a vessel 100, is a single cylinder with axial direction facing vessel length direction, and is arranged in a position and posture with lower pressure in surface vicinity of the cylinder than outside, and has a slot 23 in the duct body 11 which is a long hole formed along peripheral direction of the tube of the duct body 11 for communicating inner periphery and outer periphery of the duct body 11 conducting a part of water flow flowing outside the duct body 11 to inside the duct body 11.SELECTED DRAWING: Figure 3
Inventors:
Kohei Segawa
Takehiro Ikeda
Youta looks
Takehiro Ikeda
Youta looks
Application Number:
JP2021048026A
Publication Date:
December 26, 2023
Filing Date:
March 23, 2021
Export Citation:
Assignee:
Mitsui e&s Shipbuilding Co., Ltd.
International Classes:
B63H5/16
Domestic Patent References:
| JP5816982A | ||||
| JP5816985A | ||||
| JP5816986A | ||||
| JP2018118699A | ||||
| JP201816091A |
Foreign References:
| US20030064637 |
Attorney, Agent or Firm:
Clear stream international patent attorney corporation
Takayoshi in the daytime
Masao Sakaizawa
Takayoshi in the daytime
Masao Sakaizawa
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