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WO2010023522A3 - Device for channelling a flow of water around the hub of a boat propeller - Google Patents

Device for channelling a flow of water around the hub of a boat propeller Download PDF

Info

Publication number
WO2010023522A3
WO2010023522A3 PCT/IB2009/006556 IB2009006556W WO2010023522A3 WO 2010023522 A3 WO2010023522 A3 WO 2010023522A3 IB 2009006556 W IB2009006556 W IB 2009006556W WO 2010023522 A3 WO2010023522 A3 WO 2010023522A3
Authority
WO
WIPO (PCT)
Prior art keywords
propeller
hub
channelling
ring
flow
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IB2009/006556
Other languages
French (fr)
Other versions
WO2010023522A2 (en
Inventor
Yvan Brulhart
Giuseppe Parenti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DRS Drag Reduction Systems SA
Magising Pte Ltd
Original Assignee
DRS Drag Reduction Systems SA
Magising Pte Ltd
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 DRS Drag Reduction Systems SA, Magising Pte Ltd filed Critical DRS Drag Reduction Systems SA
Publication of WO2010023522A2 publication Critical patent/WO2010023522A2/en
Publication of WO2010023522A3 publication Critical patent/WO2010023522A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/28—Other means for improving propeller efficiency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose

Landscapes

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

Abstract

The device for channelling a flow of water around the hub of a boat propeller comprises at least one ring (20) fastened around the propeller shaft housing (1) or around the base of the propeller upstream of this propeller, and this ring (20) has in longitudinal section the general shape of the section of an aircraft wing. This device can also be formed by at least two longitudinal ribs (22) fastened to the propeller housing upstream of the hub of this propeller, in combination or not with said ring (20). The axial length of the ring or rings is smaller than its diameter.
PCT/IB2009/006556 2008-08-27 2009-08-17 Device for channelling a flow of water around the hub of a boat propeller Ceased WO2010023522A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01363/08 2008-08-27
CH13632008A CH699473A2 (en) 2008-08-27 2008-08-27 Device for channeling the water flow around the hub of a ship's propeller.

Publications (2)

Publication Number Publication Date
WO2010023522A2 WO2010023522A2 (en) 2010-03-04
WO2010023522A3 true WO2010023522A3 (en) 2010-11-18

Family

ID=41581055

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/006556 Ceased WO2010023522A2 (en) 2008-08-27 2009-08-17 Device for channelling a flow of water around the hub of a boat propeller

Country Status (2)

Country Link
CH (1) CH699473A2 (en)
WO (1) WO2010023522A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101525791B1 (en) * 2013-05-03 2015-06-04 삼성중공업 주식회사 Flow control apparatus of open shaft type ship

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1181090B (en) * 1962-01-17 1964-11-05 Shipbuilding Res Trust Reg Device for the protection of propellers
FR2233225A1 (en) * 1973-06-13 1975-01-10 Normandie Const Mecaniques
FR2468499A1 (en) * 1979-11-02 1981-05-08 Espanoles Astilleros PROPULSIVE SYSTEM FOR A PROPELLER SHIP, AND SHIP THUS EQUIPPED
EP0100058A1 (en) * 1982-07-19 1984-02-08 Astilleros Espanoles, S.A. Method and apparatus for increasing efficiency of a propeller-driven vehicle
US4798547A (en) * 1987-06-29 1989-01-17 The United States Of America As Represented By The Secretary Of The Navy Fuel efficient propulsor for outboard motors
RU2128126C1 (en) * 1998-03-04 1999-03-27 Центральный научно-исследовательский институт им.акад.А.Н.Крылова Shipboard screw-propeller for motion and maneuvering of ship under ice conditions
WO2005110840A1 (en) * 2004-04-30 2005-11-24 Alstom Marine engine assembly including a pod mountable under a ship's hull
EP1955944A1 (en) * 2007-02-06 2008-08-13 Daewoo Shipbuilding & Marine Engineering Co., Ltd Asymmetric preswirl stator of ship

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1181090B (en) * 1962-01-17 1964-11-05 Shipbuilding Res Trust Reg Device for the protection of propellers
FR2233225A1 (en) * 1973-06-13 1975-01-10 Normandie Const Mecaniques
FR2468499A1 (en) * 1979-11-02 1981-05-08 Espanoles Astilleros PROPULSIVE SYSTEM FOR A PROPELLER SHIP, AND SHIP THUS EQUIPPED
EP0100058A1 (en) * 1982-07-19 1984-02-08 Astilleros Espanoles, S.A. Method and apparatus for increasing efficiency of a propeller-driven vehicle
US4798547A (en) * 1987-06-29 1989-01-17 The United States Of America As Represented By The Secretary Of The Navy Fuel efficient propulsor for outboard motors
RU2128126C1 (en) * 1998-03-04 1999-03-27 Центральный научно-исследовательский институт им.акад.А.Н.Крылова Shipboard screw-propeller for motion and maneuvering of ship under ice conditions
WO2005110840A1 (en) * 2004-04-30 2005-11-24 Alstom Marine engine assembly including a pod mountable under a ship's hull
EP1955944A1 (en) * 2007-02-06 2008-08-13 Daewoo Shipbuilding & Marine Engineering Co., Ltd Asymmetric preswirl stator of ship

Also Published As

Publication number Publication date
CH699473A2 (en) 2010-03-15
WO2010023522A2 (en) 2010-03-04

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