Title:
HULL FRICTIONAL RESISTANCE REDUCTION DEVICE AND SHIP
Document Type and Number:
WIPO Patent Application WO/2017/169030
Kind Code:
A1
Abstract:
Provided are a hull frictional resistance reduction device and a ship such that the frictional resistance of a hull can be effectively reduced while risks associated with bubbles flowing into a propeller are mitigated. This hull frictional resistance reduction device comprises: a plurality of bubble jetting units (36C, 36R, 36L) which are provided in the width direction forward of a propeller (16); an adjusting mechanism (35) which adjusts the amount of bubbles to be jetted from the bubble jetting units (36C, 36R, 36L); a control device (50); and a inflow information acquisition means for acquiring information relating to flow of bubbles (100) into the propeller (16). The control device (50) has an adjusting mechanism control unit (52), and upon acquiring the bubble inflow information from the inflow information acquisition means, the adjusting mechanism control unit (52) controls the operation of the adjusting mechanism (35) in such a manner that the amount of the bubbles (100) to be jetted to at least the bubble jetting unit (36C) disposed straight in front of the propeller (16) is reduced.
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Inventors:
TAKANO SHINICHI (JP)
KAWAKITA CHIHARU (JP)
KAWAKITA CHIHARU (JP)
Application Number:
PCT/JP2017/002481
Publication Date:
October 05, 2017
Filing Date:
January 25, 2017
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
B63B1/38
Foreign References:
| JP2009248831A | 2009-10-29 | |||
| JPS62137891U | 1987-08-31 | |||
| JP2004188993A | 2004-07-08 |
Attorney, Agent or Firm:
SANADA, Tamotsu (JP)
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