Title:
EVADING MANEUVER METHOD IN CONGESTED WATERS AND EVADING MANEUVER SYSTEM FOR SINGLE-SHAFT TWO-RUDDER SHIP
Document Type and Number:
WIPO Patent Application WO/2020/183804
Kind Code:
A1
Abstract:
During an evading maneuver in congested waters, while continuing to travel on a current destination course 502 of an own ship 501 and maintaining forward rotation of one propulsion propeller 101 disposed at the stern, a rudder angle is given to a pair of left and right high lift rudders 102, 103 disposed behind the propulsion propeller 101 to produce a reverse thrust out of the thrust of a propeller slipstream, and a deceleration maneuver is performed with the reverse thrust. In the deceleration maneuver, the rudder angle given to both the high lift rudders 102, 103 is controlled in a range from a rudder angle that causes the propeller slipstream to provide a maximum reverse thrust, to a rudder angle that eliminates a forward thrust of the propeller slipstream, and deceleration of the ship speed is controlled by increasing and decreasing the reverse thrust according to the rudder angle.
Inventors:
TOMITA KAZUSHI (JP)
YAMAMOTO HIROTAKA (JP)
YAMAMOTO HIROTAKA (JP)
Application Number:
PCT/JP2019/045627
Publication Date:
September 17, 2020
Filing Date:
November 21, 2019
Export Citation:
Assignee:
JAPAN HAMWORTHY & CO LTD (JP)
International Classes:
B63H25/38; B63H25/04; B63H25/30; G08G3/02
Foreign References:
| JP2018103949A | 2018-07-05 | |||
| JP2018103816A | 2018-07-05 | |||
| JP3201225U | 2015-11-26 | |||
| JP4055915B2 | 2008-03-05 | |||
| JPH0752887A | 1995-02-28 | |||
| JP2018103816A | 2018-07-05 |
Other References:
See also references of EP 3939881A4
Attorney, Agent or Firm:
MORIMOTO INT'L PATENT OFFICE (JP)
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