WO2011043146A1 - Dispositif pour réduire la résistance de frottement d'un navire - Google Patents

Dispositif pour réduire la résistance de frottement d'un navire Download PDF

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Publication number
WO2011043146A1
WO2011043146A1 PCT/JP2010/065201 JP2010065201W WO2011043146A1 WO 2011043146 A1 WO2011043146 A1 WO 2011043146A1 JP 2010065201 W JP2010065201 W JP 2010065201W WO 2011043146 A1 WO2011043146 A1 WO 2011043146A1
Authority
WO
WIPO (PCT)
Prior art keywords
ship
water pipe
seawater
pipe
water
Prior art date
Application number
PCT/JP2010/065201
Other languages
English (en)
Japanese (ja)
Inventor
正明 佐藤
剛司 佐藤
Original Assignee
Sato Tadaaki
Sato Tsuyoshi
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 Sato Tadaaki, Sato Tsuyoshi filed Critical Sato Tadaaki
Priority to CN2010800456796A priority Critical patent/CN102574563A/zh
Publication of WO2011043146A1 publication Critical patent/WO2011043146A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
    • B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
    • B63B1/38—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
    • B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
    • B63B1/38—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes
    • B63B2001/387—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes using means for producing a film of air or air bubbles over at least a significant portion of the hull surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/10—Measures concerning design or construction of watercraft hulls

Definitions

  • the spout is an opening that spouts seawater together with the microbubbles generated by the ejector, and is provided at the bottom of the ship or the bottom of the ship.
  • the spout is preferably a ship or bottom as close to the bow as possible so that the ejected microbubbles can cover the ship or bottom.
  • the water intake 111 is formed in a trumpet shape that expands forward so that more seawater W can flow in.
  • the water intake 111 is provided on the front side of the ship where the seawater W can naturally flow in as the ship 3 moves forward.
  • the water intake 111 may be provided on the side 32 or the ship bottom 33.
  • the water intake 111 is provided for each frictional resistance reduction device, for example, if there are a plurality of frictional resistance reduction devices, a plurality of water intakes 111 are provided. However, a plurality of water intakes 111 may be provided for the frictional resistance reduction device.
  • a filter may be provided at the water intake 111.
  • the front water pipe 11, the detour water pipe 12 and the rear water pipe 13 are usually constituted by a steel pipe having a circular cross section.
  • the water intake 111 is formed into a trumpet shape that expands forward so that more seawater W can flow in.
  • the water intake 111 may be flattened in the vertical direction or in the horizontal direction (in FIG. 2, the water intake 111 has a horizontally flattened oval shape).
  • the spout 131 can be expanded flat in the vertical direction or the horizontal direction.
  • the jet port 131 that is flat in the vertical direction is not preferable because an unnecessary projection is formed on the ship bottom 33.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

L'invention porte sur un dispositif destiné à réduire la résistance de frottement d'un navire, lequel dispositif est capable de mélanger de l'air dans l'eau de mer par aspiration automatique sans qu'un procédé de production de microbulles ne soit influencé par la pression de l'eau de mer, et a une structure simple et des coûts d'installation et d'exploitation réduits. Le dispositif destiné à réduire la résistance de frottement d'un navire (3) possède un tube à eau de dérivation (12) comportant une ligne d'arbre placée au-dessus de la ligne de flottaison (WL), qui est disposée sur un tube à eau (1) reliant une entrée d'eau de mer (111) disposée sur l'étrave (31) au-dessous de la ligne de flottaison (WL) et une sortie d'eau de mer et de microbulles (131) disposée sur le fond du navire (33) au-dessous de la ligne de flottaison (WL) et plus loin vers l'arrière que l'entrée précitée (111) ; et un éjecteur (21) qui est disposé dans le tube à eau de dérivation précité (12).
PCT/JP2010/065201 2009-10-05 2010-09-06 Dispositif pour réduire la résistance de frottement d'un navire WO2011043146A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010800456796A CN102574563A (zh) 2009-10-05 2010-09-06 船舶的摩擦阻力降低装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009231718A JP4503688B1 (ja) 2009-10-05 2009-10-05 船舶における摩擦抵抗低減装置
JP2009-231718 2009-10-05

Publications (1)

Publication Number Publication Date
WO2011043146A1 true WO2011043146A1 (fr) 2011-04-14

Family

ID=42575703

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/065201 WO2011043146A1 (fr) 2009-10-05 2010-09-06 Dispositif pour réduire la résistance de frottement d'un navire

Country Status (3)

Country Link
JP (1) JP4503688B1 (fr)
CN (1) CN102574563A (fr)
WO (1) WO2011043146A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102849195A (zh) * 2012-09-18 2013-01-02 南通中远川崎船舶工程有限公司 一种船首导流管装置
CN110758633A (zh) * 2019-10-30 2020-02-07 西安交通大学 一种用于船体气泡减阻的文丘里系统
EP3689733A4 (fr) * 2017-09-26 2021-05-05 Daewoo Shipbuilding & Marine Engineering Co., Ltd. Système de circulation de l'air dans des tuyaux doubles destiné à fournir des gaz et procédé de circulation d'air faisant appel audit système

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5651829B2 (ja) * 2010-11-16 2015-01-14 雅 田篭 摩擦低減船およびマイクロバブル発生ポンプ
CN102951279B (zh) * 2011-08-17 2017-04-26 林瑞麟 喷水推进装置增加推力的方法
JP5912347B2 (ja) * 2011-09-01 2016-04-27 瑞麟 林 推力増進装置
KR101193962B1 (ko) 2012-01-03 2012-10-24 주식회사 동신이엔텍 선박의 마찰저항 저감 장치 및 이를 구비한 선박
KR101805495B1 (ko) * 2016-03-28 2017-12-07 대우조선해양 주식회사 가스 공급용 이중 배관을 통한 공기순환 시스템 및 그에 의한 공기순환 방법
KR101805496B1 (ko) * 2016-03-28 2018-01-10 대우조선해양 주식회사 가스 공급용 이중 배관을 통한 공기순환 시스템 및 그에 의한 공기순환 방법
WO2018016863A1 (fr) * 2016-07-19 2018-01-25 현대중공업 주식회사 Dispositif de réduction du frottement et navire comportant celui-ci
KR20240130960A (ko) * 2023-02-23 2024-08-30 한화오션 주식회사 이중 배관을 통한 공기순환 시스템

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084651A (en) * 1950-05-23 1963-04-09 Parmenter Richard Silencer for ships
JPH07156859A (ja) * 1993-05-11 1995-06-20 Yoji Kato 航走体の摩擦を低減する方法及び摩擦低減航走体と摩擦低減に使用するマイクロバブルの発生方法及びその装置
JPH11227674A (ja) * 1998-02-13 1999-08-24 Ishikawajima Harima Heavy Ind Co Ltd 船体摩擦抵抗低減方法
JP2001106171A (ja) * 1999-10-06 2001-04-17 Ishikawajima Harima Heavy Ind Co Ltd 摩擦抵抗低減船及び船体の摩擦抵抗低減方法
JP2001206276A (ja) * 2000-01-26 2001-07-31 Natl Inst Of Advanced Industrial Science & Technology Meti 磁場を利用した摩擦抵抗低減船
JP2001239995A (ja) * 2000-02-29 2001-09-04 Mitsubishi Heavy Ind Ltd 船舶における排ガスの水中排出装置
JP2002068073A (ja) * 2000-09-05 2002-03-08 Ishikawajima Harima Heavy Ind Co Ltd 摩擦抵抗低減船及び船体の摩擦抵抗低減方法
JP2002079986A (ja) * 2000-09-08 2002-03-19 Ishikawajima Harima Heavy Ind Co Ltd 摩擦抵抗低減船
JP2008018781A (ja) * 2006-07-11 2008-01-31 Mitsui Zosen Akishima Kenkyusho:Kk 船体摩擦抵抗低減装置
JP4341058B1 (ja) * 2009-02-25 2009-10-07 正明 佐藤 船舶における摩擦抵抗低減装置における気泡の発生方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0650889A4 (fr) * 1993-05-11 1995-10-25 Ishikawajima Harima Heavy Ind Procede de reduction de la friction sur un navire en deplacement, corps se depla ant dans l'eau avec friction reduite, procede et appareil de production de microbulles s'appliquant a la reduction de la friction.
JPH08225095A (ja) * 1995-02-21 1996-09-03 Yoji Kato マイクロバブルの発生装置
KR100424543B1 (ko) * 2000-03-14 2004-03-27 이시카와지마-하리마 주고교 가부시키가이샤 마찰저항 저감선
US7000554B2 (en) * 2004-02-02 2006-02-21 Phipps Gary G B Frictionally reduced hull

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084651A (en) * 1950-05-23 1963-04-09 Parmenter Richard Silencer for ships
JPH07156859A (ja) * 1993-05-11 1995-06-20 Yoji Kato 航走体の摩擦を低減する方法及び摩擦低減航走体と摩擦低減に使用するマイクロバブルの発生方法及びその装置
JPH11227674A (ja) * 1998-02-13 1999-08-24 Ishikawajima Harima Heavy Ind Co Ltd 船体摩擦抵抗低減方法
JP2001106171A (ja) * 1999-10-06 2001-04-17 Ishikawajima Harima Heavy Ind Co Ltd 摩擦抵抗低減船及び船体の摩擦抵抗低減方法
JP2001206276A (ja) * 2000-01-26 2001-07-31 Natl Inst Of Advanced Industrial Science & Technology Meti 磁場を利用した摩擦抵抗低減船
JP2001239995A (ja) * 2000-02-29 2001-09-04 Mitsubishi Heavy Ind Ltd 船舶における排ガスの水中排出装置
JP2002068073A (ja) * 2000-09-05 2002-03-08 Ishikawajima Harima Heavy Ind Co Ltd 摩擦抵抗低減船及び船体の摩擦抵抗低減方法
JP2002079986A (ja) * 2000-09-08 2002-03-19 Ishikawajima Harima Heavy Ind Co Ltd 摩擦抵抗低減船
JP2008018781A (ja) * 2006-07-11 2008-01-31 Mitsui Zosen Akishima Kenkyusho:Kk 船体摩擦抵抗低減装置
JP4341058B1 (ja) * 2009-02-25 2009-10-07 正明 佐藤 船舶における摩擦抵抗低減装置における気泡の発生方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102849195A (zh) * 2012-09-18 2013-01-02 南通中远川崎船舶工程有限公司 一种船首导流管装置
EP3689733A4 (fr) * 2017-09-26 2021-05-05 Daewoo Shipbuilding & Marine Engineering Co., Ltd. Système de circulation de l'air dans des tuyaux doubles destiné à fournir des gaz et procédé de circulation d'air faisant appel audit système
US12018791B2 (en) 2017-09-26 2024-06-25 Hanwha Ocean Co., Ltd. System for circulating air through double pipes for supplying gas and air circulation method using same
CN110758633A (zh) * 2019-10-30 2020-02-07 西安交通大学 一种用于船体气泡减阻的文丘里系统

Also Published As

Publication number Publication date
JP4503688B1 (ja) 2010-07-14
CN102574563A (zh) 2012-07-11
JP2011079381A (ja) 2011-04-21

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