[go: up one dir, main page]

WO2008108664A1 - Propulseur de poupe - Google Patents

Propulseur de poupe Download PDF

Info

Publication number
WO2008108664A1
WO2008108664A1 PCT/NO2008/000086 NO2008000086W WO2008108664A1 WO 2008108664 A1 WO2008108664 A1 WO 2008108664A1 NO 2008000086 W NO2008000086 W NO 2008000086W WO 2008108664 A1 WO2008108664 A1 WO 2008108664A1
Authority
WO
WIPO (PCT)
Prior art keywords
thruster
stern
motor
tunnel
guide channel
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/NO2008/000086
Other languages
English (en)
Inventor
Kurt Skage
Tore Eriksen
Ronny Skauen
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.)
Sleipner Motor AS
Original Assignee
Sleipner Motor AS
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 Sleipner Motor AS filed Critical Sleipner Motor AS
Publication of WO2008108664A1 publication Critical patent/WO2008108664A1/fr
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
    • 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

Definitions

  • the present invention relates to a stern thruster for mounting on the transom plate of a boat. More precisely the invention relates to a stern thruster for being arranged outboard on the transom plate of a boat, or outboard on the stern frame of the boat if the boat does not have a generally plane transom plate.
  • a stern thruster comprising a transversal thruster tunnel with a thruster propeller working in the lateral direction on a T-gearbox arranged on a thruster stem extending through the transom plate, where the thruster stem holds the transversal thruster tunnel and the T-gearbox, while the thruster stem comprises an axially arranged drive shaft extending through the transom plate and connected to a thruster motor, most commonly an electric motor.
  • stern thruster in line with the centreline of the transom plate so that the stern thruster can be arranged as low as possible on the transom plate due to the fact that the transom plate is generally V-shaped tapered towards the bottom of the boat.
  • An example of such an arrangement of stem thrusters is illustrated in CA2419669, Fig. 8.
  • the electrical thruster motor arranged inboard may create sparks during its operation or upon activation and deactivation of electrical relays.
  • a stern thruster there has to be made a small hole for the drive shaft between the motor and the gearbox, and then the thruster stem with the thruster tunnel are mounted outboard and the motor has to be connected from the inside of the hull and be mounted inboard. Then electrical cables connecting a power supply to the motor relays for the thruster motor are wired.
  • Sparks from the electric motor or relays may ignite gases aboard the vessel, e.g. petrol gas, oil vapour or propane.
  • CA2419669 further shows, in Fig. 7, laterally arranged starboard and port convex shaped covers arranged for guiding the outwardly directed jet of water downwards.
  • the concave shaped cover of the opposite inlet of the stern thruster has a lower horizontal edge about the inlet of the cover to avoid air from entering the inlet.
  • cavitation within the side thruster is avoided.
  • Another problem related to CA2419669 may be that the jet of water is sent more or less directly into the cavitation plate of the gearbox, either on starboard or port side of the stern thruster and lateral thrust is thereby lost.
  • US5016553 shows a stern thruster for a boat where the stern thruster is arranged on the transom plate when an inboard motor is used, and integrated in the stern drive when a single stem drive is used.
  • the thruster motor is driven by hydraulic fluid pressure from the main propulsion motor.
  • US6579133 shows a thruster integrated in a single outboard motor for a boat.
  • the present invention solves several of the abovementioned problems related to safety, mounting and operation.
  • the invention pertains to a stern thruster for a boat with one or more stem drives or outboard motors wherein the stern thruster comprises an outboard thruster housing.
  • the outboard thruster housing comprises;
  • transversal thruster tunnel with at least one thruster propeller operating mainly in the transverse direction of the boat, wherein the thruster propeller is driven by the motor, and
  • the thruster tunnel being arranged mainly on the outside of a transom plate of the boat, and - wherein the thruster tunnel comprises a central portion with at least a port and a starboard guide channel forming port, respectively starboard inlet/outlet from the thruster tunnel, and
  • the guide channel constitutes a transition between a mainly circular cross- section at an inner connection portion connected to a mainly circular cross-section of the central portion of the thruster tunnel, to a non-circular cross-section at the outer inlet/outlet towards the sea,
  • the guide channel is arranged for guiding a jet of water of the stern thruster through a gap formed by the transom plate and the one or more stern drives or outboard motors to improve the steering impact on the boat.
  • the installation is simplified as it is not necessary to mount the stem thruster outboard and the electric motor inboard on each side of the transom plate.
  • the lateral outwardly directed jet of water is to a large degree directed towards and through the relatively narrow opening between the transom plate and the stem of the stern drive.
  • Fig. 1 shows a partly transparent perspective projection of a stern thruster according to the invention.
  • Fig. 2 shows a cross-section of a stern of a boat with a view of one or two stern drives mounted in the boat and a longitudinal cross-section of a stern thruster according to the invention arranged preferably between the stern drives.
  • Fig. 3a shows a vertical projection of the outboard mountable motor housing and the thruster tunnel according to an embodiment of the invention, where the line A-A (L) is transversal relative the boat, and the line B-B is mainly vertical.
  • Fig. 3b shows a horizontal projection of the thruster tunnel along the line A-A (L) from Fig. 3a.
  • the line L may be curved towards the transom plate as shown here.
  • Fig. 3c shows a vertical projection of the motor housing and the thruster tunnel along the line B-B from Fig. 3a and is perpendicular to a section A-A from the same figure.
  • the motor housing with relays and gas-tight bushings or seal arrangements for electrical cables, and at the bottom is the transversally arranged thruster tunnel with the transversally arranged propeller.
  • An outlet (non-circular, preferably elliptical) for a transversally directed nozzle is stippled inside the section plane.
  • Fig. 4 shows on the right side the same projection of the motor housing and the thruster tunnel as in Fig. 3a.
  • the section A-A is taken from the connection of the port side channel to the central portion of the thruster channel and has a circular cross-section.
  • B- B and C-C show the cross-sections at successively 1/3 and 2/3 outwards along the side channel along the axis being a straight line in this projection, showing an embodiment where the thruster channel is turning in towards the transom plate.
  • the sections B'-B' and C-C are taken along the line L' curving downwards, and where the thruster side channel is curved downwards towards its end to avoid cavitation.
  • Fig. 5 shows a stern thruster according to background art.
  • the invention relates to a stern thruster (201) for a boat (1) with one or more stem drives or outboard motors (101), wherein the stern thruster (201) comprises an outboard thruster housing (240).
  • the outboard thruster housing (240) comprises;
  • the thruster tunnel (220) being arranged mainly on the outside of a transom plate (100) of the boat (1), and
  • the thruster tunnel (220) comprises a central portion (231) with at least a port and a starboard guide channel (230) forming port, respectively starboard inlet/outlet (234) from the thruster tunnel (220), and
  • the guide channel (230) constitutes a transition between a mainly circular cross-section at an inner connection portion (232) connected to a mainly circular cross- section of the central portion (231) of the thruster tunnel (220), to a non-circular cross- section at the outer inlet/outlet (234) towards the sea,
  • the guide channel (230) is arranged for guiding a jet of water of the stern thruster (201) through a gap formed by the transom plate (100) and the one or more stern drives or outboard motors (101) to improve the steering impact on said boat (1).
  • the invention renders superfluous a thruster stem that would otherwise extend from the transom plate and where the thruster stem usually holds a transverse thruster tunnel.
  • the invention renders superfluous an axially arranged drive shaft running through the transom plate and connected to a motor, usually an electric motor on the inside of the transom plate.
  • the stern thruster is arranged in the centreline (102) of the transom plate (100) to allow the stern thruster to be arranged as low as possible on the transom plate (100) as the transom plate usually is V-shaped tapered towards the bottom (150) of the boat (1).
  • the motor for the stern thruster (201) is an electric motor (228).
  • the thruster housing constitutes a splash proof, preferably waterproof and gas tight encapsulation of the motor (228).
  • a driveshaft (221) is arranged through a waterproof bushing or seal arrangement (223) in the thruster housing (240) between the motor (228) and the thruster propeller (222).
  • the drive shaft of the motor (228) may be connected to a gearbox (224) with a propeller axis (225) or be directly connected to the propeller axis (225).
  • the stern thruster (201) may be arranged for the thruster tunnel (220) to comprise a central portion (231) with at least a port or a starboard guide channel (230) constituting port, respectively starboard outlets (234) from the thruster tunnel (220), to guide water into and through the central portion (231).
  • the guide channel (230) usually also constitutes the port inlet from the sea to the thruster tunnel (220), but the inlet for water may be arranged differently.
  • the guide channel (230) constitutes in an embodiment of the invention a transition from a mainly circular cross-section at an inner connection portion (232) connected to a mainly circular cross-section of said central portion (231), to a non-circular cross-section at the outer inlet/outlet towards the sea, as illustrated in Fig. 4.
  • the section A-A in Fig. 4 shows the circular cross-section in the central portion (231) and the outlet/inlet (234).
  • the section B-B is located further out on the guide channel (230), and the section C-C is located close to the outlet/inlet (234).
  • the horizontal projection shown to the right in Fig. 4 has a mainly horizontally curved axis (L) through the central portion (231).
  • the axis (L) curves gently towards the transom plate (see Fig. 3c) at the starboard and port inlet/outlet (234SB, 234BB).
  • the starboard and port inlet/outlet (234SB, 234BB) in addition curves gently downwards along an axis (L 1 ) to avoid cavitation, see Fig. 4.
  • the inlet/outlet (234) may have a very narrow (short) and extended (high) shape.
  • the port/starboard outer inlet/outlet of the guide channel (230) are arranged to be arranged lower than the central portion (231) of the thruster tunnel (220) to reduce the risk of cavitation.
  • the longitudinal axis (234L) of the non-circular or elliptical cross-section of the outlet (234) of the guide channel (230) may be arranged for being arranged mainly in parallel with the plane of the transom plate (100) to guide the jet of water between the transom plate and the stern thruster.
  • the stem thruster is arranged for being positioned next to a stern drive (101) or between two stern drives (101), see Fig. 2, and where the longitudinal axis (234L) of the non-circular or elliptical cross-section of the outlet (234) is arranged for being positioned mainly in parallel with the direction of the stem (110) of the stern drive (101) in operational position.
  • the thruster housing (240) may in an embodiment of the invention comprise a back plate (241), see Fig. 3b, arranged for resting against the outside of the transom plate (100), thereby requiring only a small opening in the transom plate (100) for letting cables through from the already gas tight thruster housing (240).
  • the complete package with the thruster housing (240) comprising thruster tunnel (220), gearbox (224), motor (228) and back plate (241) is thereby arranged for fastening directly onto the transom plate (100). Only a smaller box (247) and wiring of the cables inside the transom plate (100) is required.
  • the fastening may be obtained by a flange around the thruster housing (240).
  • the thruster housing (240) may in an embodiment of the invention comprise a back plate (241) arranged for being positioned on the inside of an opening in the transom plate (100), where the opening has an edge in the transom plate (100) arranged for being covered by and for fastening by a flange on the thruster housing (240).
  • An opening corresponding to the shape of the flange may then be cut in the transom plate (100) and the complete package including the thruster housing (240) comprising thruster tunnel (220), gearbox (224), motor (228), back plate (241) and electrical power cables (280) may thus be put directly into the opening and fastened by the flange on the edge.
  • the stern thruster may comprise power cables (280) to the motor (228) and potentially control cables (281), primarily electrical cables (281) and electrical relay control cables (281) for electrical relays (242) between the power cables (280) and the electric motor (228).
  • the power cables (280) are arranged with a gas tight bushing or sleeve (229) through the thruster housing (240), preferably through the box (247) in the back plate (241).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

L'invention concerne un propulseur de poupe destiné à un bateau comprenant un moteur et un tunnel de propulsion transversal avec des hélices de propulsion fonctionnant dans la direction transversale du bateau. Le tunnel de propulsion est placé sur l'extérieur de la tôle d'arcasse du bateau, où le tunnel de propulsion comprend une partie centrale avec au moins un orifice et un orifice formant un canal de guidage à tribord, respectivement une entrée/sortie à tribord depuis le tunnel de propulsion. Le canal de guidage constitue une transition entre une section transversale principalement circulaire au niveau d'une partie de raccord intérieur reliée à une section transversale principalement circulaire de la partie centrale du tunnel de propulsion, vers une section transversale non circulaire au niveau de la sortie/entrée extérieure vers la mer, où le canal de guidage est placé afin de guider un courant d'eau du propulseur de poupe à travers un couloir formé par la tôle d'arcasse et la poupe commande afin d'améliorer l'impact de la direction sur le bateau.
PCT/NO2008/000086 2007-03-08 2008-03-07 Propulseur de poupe Ceased WO2008108664A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20071279A NO20071279L (no) 2007-03-08 2007-03-08 Akterthruster for en bat
NO20071279 2007-03-08

Publications (1)

Publication Number Publication Date
WO2008108664A1 true WO2008108664A1 (fr) 2008-09-12

Family

ID=39738457

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2008/000086 Ceased WO2008108664A1 (fr) 2007-03-08 2008-03-07 Propulseur de poupe

Country Status (2)

Country Link
NO (1) NO20071279L (fr)
WO (1) WO2008108664A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8939104B2 (en) 2008-11-17 2015-01-27 Sleipner—Marinno GmbH Lateral thruster for a vessel
CN109094716A (zh) * 2018-09-20 2018-12-28 中船黄埔文冲船舶有限公司 导流板加工样箱的制作方法
WO2020019059A1 (fr) * 2018-07-25 2020-01-30 Sideshift Inc. Propulseur marin latéral monté à la poupe
US11338894B1 (en) 2019-04-10 2022-05-24 Jonathan A. Bay Auxiliary low-speed marine steering associated with inverted snorkel for underwater engine exhaust

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487149A (en) * 1982-10-29 1984-12-11 Nathan Morris Steering package for vessels
US5016553A (en) * 1989-12-04 1991-05-21 Spencer William P Vector steering control system
EP0716977A1 (fr) * 1994-12-16 1996-06-19 Vetus den Ouden N.V. Hélice de poupe pour un bateau
JPH08337198A (ja) * 1995-06-13 1996-12-24 Yamaha Motor Co Ltd 船の横スラスト装置
JPH09109988A (ja) * 1995-10-18 1997-04-28 Yanmar Diesel Engine Co Ltd サイドスラスター付き船舶
CA2419669A1 (fr) * 2002-12-06 2004-06-06 Cap Sante Marine, Ltd. Propulseur de bateau et methode
US6964590B1 (en) * 2004-11-06 2005-11-15 Don Dongcho Ha Lateral thrust drive unit for marine vessels

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487149A (en) * 1982-10-29 1984-12-11 Nathan Morris Steering package for vessels
US5016553A (en) * 1989-12-04 1991-05-21 Spencer William P Vector steering control system
EP0716977A1 (fr) * 1994-12-16 1996-06-19 Vetus den Ouden N.V. Hélice de poupe pour un bateau
JPH08337198A (ja) * 1995-06-13 1996-12-24 Yamaha Motor Co Ltd 船の横スラスト装置
JPH09109988A (ja) * 1995-10-18 1997-04-28 Yanmar Diesel Engine Co Ltd サイドスラスター付き船舶
CA2419669A1 (fr) * 2002-12-06 2004-06-06 Cap Sante Marine, Ltd. Propulseur de bateau et methode
US6964590B1 (en) * 2004-11-06 2005-11-15 Don Dongcho Ha Lateral thrust drive unit for marine vessels

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8939104B2 (en) 2008-11-17 2015-01-27 Sleipner—Marinno GmbH Lateral thruster for a vessel
WO2020019059A1 (fr) * 2018-07-25 2020-01-30 Sideshift Inc. Propulseur marin latéral monté à la poupe
CN109094716A (zh) * 2018-09-20 2018-12-28 中船黄埔文冲船舶有限公司 导流板加工样箱的制作方法
CN109094716B (zh) * 2018-09-20 2020-09-04 中船黄埔文冲船舶有限公司 导流板加工样箱的制作方法
US11338894B1 (en) 2019-04-10 2022-05-24 Jonathan A. Bay Auxiliary low-speed marine steering associated with inverted snorkel for underwater engine exhaust

Also Published As

Publication number Publication date
NO20071279L (no) 2008-09-09

Similar Documents

Publication Publication Date Title
AU2009316221B2 (en) Lateral thruster for a vessel
US6705907B1 (en) Drive means in a boat
EP1169221B1 (fr) Dispositif d'entrainement d'un bateau
EP2951082B1 (fr) Système de propulsion pour bateau
US20120325136A1 (en) Hull design with engine air flow system
SE449466B (sv) Marin framdrivningsinstallation
CN1359345A (zh) 具有低安装高度的电动船用螺旋桨
WO2008108664A1 (fr) Propulseur de poupe
AU2014306895B2 (en) A hull mounted, steerable marine drive with trim actuation
US20110195621A1 (en) Propeller drive arrangement for controlling and driving a ship
US6599159B1 (en) Drive means a boat
EP1169223A1 (fr) Organe d'entrainement d'un bateau
EP4255801A1 (fr) Système et ensemble de propulsion de navire
US11787520B2 (en) Jet pump assembly and method of securing jet pump assembly to boat hull
KR200475639Y1 (ko) 선외 모듈형 액티브 러더
US12312056B2 (en) Jet pump assembly and method of securing jet pump assembly to pontoon boat
US10913522B2 (en) Outboard motor
WO2001054971A1 (fr) Amenagement de l'espace dans un navire
KR200174699Y1 (ko) 소형선박용 추진기프레임
EP3967592A1 (fr) Moteur hors-bord
JP2000142579A (ja) 船外機のケース外面冷却装置
WO2022162040A1 (fr) Dispositif passe-cloison pour unité de propulsion marine, et unité de propulsion marine
CN119659902A (zh) 一种充气艇及基于螺旋桨自动清理的充气艇控制方法
JP2005104191A (ja) 船外機

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08723978

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08723978

Country of ref document: EP

Kind code of ref document: A1