EP1876094A3 - Retractable thruster for vessels - Google Patents

Retractable thruster for vessels Download PDF

Info

Publication number
EP1876094A3
EP1876094A3 EP07109804A EP07109804A EP1876094A3 EP 1876094 A3 EP1876094 A3 EP 1876094A3 EP 07109804 A EP07109804 A EP 07109804A EP 07109804 A EP07109804 A EP 07109804A EP 1876094 A3 EP1876094 A3 EP 1876094A3
Authority
EP
European Patent Office
Prior art keywords
propeller
thruster
piston element
thruster unit
magnets
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.)
Withdrawn
Application number
EP07109804A
Other languages
German (de)
French (fr)
Other versions
EP1876094A2 (en
Inventor
Philip Van Goethem
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.)
Neta NV
Original Assignee
Neta NV
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 Neta NV filed Critical Neta NV
Priority to EP07109804A priority Critical patent/EP1876094A3/en
Publication of EP1876094A2 publication Critical patent/EP1876094A2/en
Publication of EP1876094A3 publication Critical patent/EP1876094A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B63H1/16—Propellers having a shrouding ring attached to blades
    • 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
    • B63H25/42—Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H2023/005—Transmitting power from propulsion power plant to propulsive elements using a drive acting on the periphery of a rotating propulsive element, e.g. on a dented circumferential ring on a propeller, or a propeller acting as rotor of an electric motor
    • 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
    • B63H25/42—Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers
    • B63H2025/425—Propulsive elements, other than jets, substantially used for steering or dynamic anchoring only, with means for retracting, or otherwise moving to a rest position outside the water flow around the hull

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Actuator (AREA)

Abstract

A thruster device provides thrust for moving a vessel. A thruster unit (1) has a propeller (8) for generating the thrust and a compact power system (9,10) for providing power to rotate the propeller. A compact retractor assembly moves the thruster unit between a recessed position and an operational position. The thruster unit (1) has a piston element (3), and the retractor assembly comprises a housing (2) having an inner space (21) for receiving the piston element. The inner space receives a pressure fluid (24) for applying a hydraulic pressure on the piston element for the moving of the thruster unit. The propeller has an outer ring (80). The outer ring has a sequence of magnets (9) cooperating with coils (10). A coil current provided by a power control unit generates a magnetic force on the sequence of magnets to rotate the propeller.
EP07109804A 2006-07-06 2007-06-07 Retractable thruster for vessels Withdrawn EP1876094A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07109804A EP1876094A3 (en) 2006-07-06 2007-06-07 Retractable thruster for vessels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06116730 2006-07-06
EP07109804A EP1876094A3 (en) 2006-07-06 2007-06-07 Retractable thruster for vessels

Publications (2)

Publication Number Publication Date
EP1876094A2 EP1876094A2 (en) 2008-01-09
EP1876094A3 true EP1876094A3 (en) 2008-03-19

Family

ID=38596755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07109804A Withdrawn EP1876094A3 (en) 2006-07-06 2007-06-07 Retractable thruster for vessels

Country Status (1)

Country Link
EP (1) EP1876094A3 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2548797B1 (en) 2011-07-18 2014-07-23 Sleipner Motor As Retractable thruster
JP5872255B2 (en) 2011-11-08 2016-03-01 ヤマハ発動機株式会社 Ship propulsion device
US9260173B2 (en) 2012-09-26 2016-02-16 Robert Case Shallow-draft watercraft propulsion and steering apparatus
WO2014052531A1 (en) * 2012-09-26 2014-04-03 Robert Case Shallow-draft watercraft propulsion and steering apparatus
US8894453B2 (en) 2012-09-26 2014-11-25 Robert Case Shallow-draft watercraft propulsion and steering apparatus
EP2757037A1 (en) 2013-01-22 2014-07-23 Sleipner Motor As A foldable element for a retractable thruster and a method for producing such element
CN103192970A (en) * 2013-04-27 2013-07-10 鲍小福 Oar body and screw propeller with same
DK178129B1 (en) * 2014-05-15 2015-06-08 Christensen Jens Ole Rotary Control System for regulating the course of a ship
FR3074474B1 (en) * 2017-12-01 2022-04-08 Ixblue FLOATING MARITIME DEVICE WITH REMOVABLE MEASURING KEEL
NO346005B1 (en) 2021-03-23 2021-12-20 Sleipner Motor As Retractable thruster
CN116279967B (en) * 2023-03-31 2024-02-06 哈尔滨工程大学 Adjustable-impedance flexible drag-reduction noise-reduction skin based on multilayer variable-stiffness units

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3483843A (en) * 1968-11-01 1969-12-16 James M Hawthorne Retractable propulsion means for ships
DE3141339A1 (en) * 1981-10-17 1983-05-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Electric propulsion for water craft, in particular for underwater craft
DE3312063A1 (en) * 1983-04-02 1984-10-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt SHIP INTEGRATED ENGINE PROPELLER
FR2560147A1 (en) * 1984-02-23 1985-08-30 Citroen Messian Durand Engren Ship propulsion assembly, which can be retracted into a well
US5833502A (en) * 1996-06-19 1998-11-10 Anderson; Carl J. Boat construction
GB2370922A (en) * 2001-01-04 2002-07-10 Andrew David Brown Electro-magnetic propulsion engine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4294186A (en) 1980-01-25 1981-10-13 Wardell Gerald S Retractable bow thruster

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3483843A (en) * 1968-11-01 1969-12-16 James M Hawthorne Retractable propulsion means for ships
DE3141339A1 (en) * 1981-10-17 1983-05-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Electric propulsion for water craft, in particular for underwater craft
DE3312063A1 (en) * 1983-04-02 1984-10-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt SHIP INTEGRATED ENGINE PROPELLER
FR2560147A1 (en) * 1984-02-23 1985-08-30 Citroen Messian Durand Engren Ship propulsion assembly, which can be retracted into a well
US5833502A (en) * 1996-06-19 1998-11-10 Anderson; Carl J. Boat construction
GB2370922A (en) * 2001-01-04 2002-07-10 Andrew David Brown Electro-magnetic propulsion engine

Also Published As

Publication number Publication date
EP1876094A2 (en) 2008-01-09

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