ATE555981T1 - SHIP'S OAR - Google Patents

SHIP'S OAR

Info

Publication number
ATE555981T1
ATE555981T1 AT09008089T AT09008089T ATE555981T1 AT E555981 T1 ATE555981 T1 AT E555981T1 AT 09008089 T AT09008089 T AT 09008089T AT 09008089 T AT09008089 T AT 09008089T AT E555981 T1 ATE555981 T1 AT E555981T1
Authority
AT
Austria
Prior art keywords
propeller
ship
rudder
axis
edge parts
Prior art date
Application number
AT09008089T
Other languages
German (de)
Inventor
Soo Ho Lee
Tae Ik Cho
Young Man Lee
Jae Ryu Bae
Young Bok Choi
Original Assignee
Daewoo Shipbuilding & Marine
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daewoo Shipbuilding & Marine filed Critical Daewoo Shipbuilding & Marine
Application granted granted Critical
Publication of ATE555981T1 publication Critical patent/ATE555981T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06—Steering by rudders
    • B63H25/38—Rudders
    • B63H25/382—Rudders movable otherwise than for steering purposes; Changing geometry
    • B63H25/383—Rudders movable otherwise than for steering purposes; Changing geometry with deflecting means able to reverse the water stream direction

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Wind Motors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A ship rudder is disposed behind a propeller at a stem of a ship to control a movement direction of the ship. The ship rudder is divided into an upper blade and a lower blade on an axis of the propeller. Leading edge parts and trailing edge parts of the upper and lower blades are twisted at a predetermined twist angle on the axis of the propeller to be biased towards a rotational incoming flow induced from the propeller and to form an asymmetrically dislocated part. The leading edge parts of the upper and lower blades include a rudder bulb formed around the axis of the propeller to surround the asymmetrically dislocated part and including a thrust fin formed at either side of the rudder bulb. In the trailing edge parts of the upper and lower blades, portions of the asymmetrically dislocated part adjacent to the axis of the propeller in a vertical direction are cut at a constant tilt angle. The cut portions of the upper and lower blades are connected to each other via a tilt scissors plate mounted on surfaces of the cut portions to secure structural rigidity of the rudder.
AT09008089T 2009-06-17 2009-06-19 SHIP'S OAR ATE555981T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20090053998 2009-06-17

Publications (1)

Publication Number Publication Date
ATE555981T1 true ATE555981T1 (en) 2012-05-15

Family

ID=42830124

Family Applications (1)

Application Number Title Priority Date Filing Date
AT09008089T ATE555981T1 (en) 2009-06-17 2009-06-19 SHIP'S OAR

Country Status (2)

Country Link
EP (1) EP2263936B1 (en)
AT (1) ATE555981T1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013107522A (en) * 2011-11-22 2013-06-06 Nippon Yusen Kk Rudder valve and rudder for ship
JP5734918B2 (en) * 2012-06-13 2015-06-17 住友重機械マリンエンジニアリング株式会社 Manufacturing method of rudder with rudder valve
JP6570229B2 (en) * 2013-12-10 2019-09-04 ジャパン・ハムワージ株式会社 Ship rudder
JP6364683B2 (en) * 2014-12-25 2018-08-01 三菱造船株式会社 Rudder and ship
JP7248231B2 (en) * 2018-03-30 2023-03-29 国立研究開発法人 海上・港湾・航空技術研究所 Rudder gear and ships
JP7237718B2 (en) * 2019-05-10 2023-03-13 三菱重工業株式会社 Rudders and ships equipped with them

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE583091C (en) * 1933-08-28 Rudolf Wagner Dr Guide surface rudder for watercraft and aircraft
JPS5663598A (en) 1979-10-30 1981-05-30 Yamaha Motor Co Ltd Contra-rudder for small boat
GB2111007B (en) * 1981-12-08 1985-09-18 Kawasaki Heavy Ind Ltd Rudder bulb
JPS6231000U (en) 1985-08-12 1987-02-24
DE202004006453U1 (en) 2004-04-23 2004-11-11 Becker Marine Systems Gmbh & Co. Kg Oars for ships
DE202007015941U1 (en) 2007-11-13 2008-01-17 Becker Marine Systems Gmbh & Co. Kg Oars for ships
DE202007016164U1 (en) * 2007-11-16 2008-01-24 Becker Marine Systems Gmbh & Co. Kg High efficiency rudder for ships
DE202007017450U1 (en) * 2007-11-16 2008-03-27 Becker Marine Systems Gmbh & Co. Kg High efficiency rudder for ships

Also Published As

Publication number Publication date
EP2263936A1 (en) 2010-12-22
EP2263936B1 (en) 2012-05-02

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