WO1998029300A1 - Unite d'helices marines - Google Patents

Unite d'helices marines Download PDF

Info

Publication number
WO1998029300A1
WO1998029300A1 PCT/AU1997/000886 AU9700886W WO9829300A1 WO 1998029300 A1 WO1998029300 A1 WO 1998029300A1 AU 9700886 W AU9700886 W AU 9700886W WO 9829300 A1 WO9829300 A1 WO 9829300A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
carrier
propeller
hub
stern tube
Prior art date
Application number
PCT/AU1997/000886
Other languages
English (en)
Inventor
Donald Alexander Gillies
Original Assignee
Headland Securities Pty. Ltd.
Cameron, Ron
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 Headland Securities Pty. Ltd., Cameron, Ron filed Critical Headland Securities Pty. Ltd.
Priority to AU78897/98A priority Critical patent/AU7889798A/en
Publication of WO1998029300A1 publication Critical patent/WO1998029300A1/fr

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
    • B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
    • B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type

Definitions

  • An object of this invention is to provide an improved contra-rotating propeller unit.
  • a marine vessel (not illustrated) has a frameor stern tube 1 through which protrudes a propeller shaft 2 having a propeller hub 3 rigidly attached to it by splines 4 and held in place by a lock nut 5 screwed onto a threaded tail 6 of the shaft.
  • a fairing 7 encloses the nut 5 and engages the periphery of the hub 3 as shown.
  • One of a set of propeller blades is attached to the hub 3, as is partially shown at 8.
  • the ring 41 carries a second set of propeller blades one of which is shown at 39.
  • the keyway 40 allows the axial position of the ring 40 to be set, during assembly of the unit, to a position which achieves the optimum spacing between the two sets of propeller blades to provide the best performance.
  • the ring 41 is then locked in that position by means (not shown).
  • the permitted axial movement of the skirt 34 over the outside of the carrier 1 2 allows the spacing between the stern tube 1 of the vessel and the two sets of
  • a pair of radially-spaced sealed thrust bearings 37 and 38 are located between the two hubs 3 and 35 to complete the assembly of the propeller unit.
  • the internal cavity of the unit containing the gearing contains oil under pressure for lubrication purposes. It is , ,- retained by the sealed bearing 36. Additional means (not shown) are provided to prevent any small axial displacements of the hub 35 with respect to the carrier 1 5 while allowing rotation of the hub 35 to occur when the unit is operating.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

L'invention concerne une unité d'hélices contrarotatives comportant deux hélices (8, 39) entraînées dans des directions opposées au moyen d'un seul arbre (2) moteur. Une hélice (8) est directement entraînée par l'arbre (2) qui traverse un support (12) attaché de manière fixe et placé juste derrière le tube d'étambot (1) d'un bateau. L'autre hélice (39) repose sur un anneau (41) qui peut être déplacé axialement le long d'un moyeu (35) d'hélice pour faire varier l'écart entre les hélices. Le moyeu (35) comporte une jupe (34) soutenant un palier étanche (36) qui enferme l'huile à l'intérieur de l'unité tout en permettant une variation régulée de l'écart entre l'unité et le tube d'étambot (1). Un entraînement inversé du moyeu (35) est réalisé par un pignon (23) disposé dans le support (15) et entraîné à partir de l'arbre (2) par un engrenage externe (30) alors que le moyeu (35) est entraîné par un engrenage interne (33). Le montage du pignon (23) dans le support (12) et la fixation du support (12) au tube d'étambot (1) permettent d'obtenir une solidité mécanique de l'agencement, moins enclin aux vibrations que les dispositifs de l'art antérieur.
PCT/AU1997/000886 1996-12-31 1997-12-24 Unite d'helices marines WO1998029300A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU78897/98A AU7889798A (en) 1996-12-31 1997-12-24 Marine propeller unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPO4425A AUPO442596A0 (en) 1996-12-31 1996-12-31 Marine propeller unit
AUPO4425 1996-12-31

Publications (1)

Publication Number Publication Date
WO1998029300A1 true WO1998029300A1 (fr) 1998-07-09

Family

ID=3798733

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1997/000886 WO1998029300A1 (fr) 1996-12-31 1997-12-24 Unite d'helices marines

Country Status (2)

Country Link
AU (1) AUPO442596A0 (fr)
WO (1) WO1998029300A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998057848A1 (fr) * 1997-06-13 1998-12-23 Headland Securities Pty. Ltd. Helices carenees contrarotatives
EP2722270A4 (fr) * 2011-06-15 2016-01-06 Samsung Heavy Ind Dispositif de propulsion destiné à un bateau et bateau doté de celui-ci
DE102021102095A1 (de) 2021-01-29 2022-08-04 Jan-Ole Mischo Antriebseinrichtung für ein Unterwasserfahrzeug

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540369A (en) * 1983-02-22 1985-09-10 Richard Caires Counterrotating dual-propeller boat drive
WO1985005085A1 (fr) * 1984-05-07 1985-11-21 Nippon Kokan Kabushiki Kaisha Dispositif propulseur pour navires
WO1996009954A1 (fr) * 1994-09-26 1996-04-04 Cameron, Ron Unite de rotors contrarotatifs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540369A (en) * 1983-02-22 1985-09-10 Richard Caires Counterrotating dual-propeller boat drive
WO1985005085A1 (fr) * 1984-05-07 1985-11-21 Nippon Kokan Kabushiki Kaisha Dispositif propulseur pour navires
WO1996009954A1 (fr) * 1994-09-26 1996-04-04 Cameron, Ron Unite de rotors contrarotatifs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998057848A1 (fr) * 1997-06-13 1998-12-23 Headland Securities Pty. Ltd. Helices carenees contrarotatives
EP2722270A4 (fr) * 2011-06-15 2016-01-06 Samsung Heavy Ind Dispositif de propulsion destiné à un bateau et bateau doté de celui-ci
US9694887B2 (en) 2011-06-15 2017-07-04 Samsung Heavy Ind. Co., Ltd. Propulsion device for ship and ship having the same
DE102021102095A1 (de) 2021-01-29 2022-08-04 Jan-Ole Mischo Antriebseinrichtung für ein Unterwasserfahrzeug

Also Published As

Publication number Publication date
AUPO442596A0 (en) 1997-01-30

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