SHIP WITH BOTTOM GROOVES

PROBLEM TO BE SOLVED: To provide a ship with bottom grooves by forming bottom grooves on the bottom surface of a ship so that a flow in a boundary layer along the bottom surface of the ship during navigating is reached to a propeller located at the stern of it under the sufficiently developed condit...

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Bibliographic Details
Main Authors ISHIKAWA AKIRA, MATSUNAGA TETSUO
Format Patent
LanguageEnglish
Published 26.01.1999
Edition6
Subjects
CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION
EQUIPMENT FOR SHIPPING
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
MARINE PROPULSION OR STEERING
PERFORMING OPERATIONS
RELATED EQUIPMENT
SHIPS OR OTHER WATERBORNE VESSELS
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To provide a ship with bottom grooves by forming bottom grooves on the bottom surface of a ship so that a flow in a boundary layer along the bottom surface of the ship during navigating is reached to a propeller located at the stern of it under the sufficiently developed condition so as to remarkably increase a propelling efficiency. SOLUTION: Bottom grooves extending from near the center part of a hull to a stern are formed in the bottom lower surface 1a so that a flow in a boundary layer along the bottom layer surface 1a during the navigating of a ship can be led to a propeller 2 located at the stern of it. Because the flow in the boundary layer is relatively slow, when the propeller 2 is operated in this slow flow, a propelling efficiency is increased.
Bibliography:Application Number: JP19970203770