EP3395669A1 - Aussenbordantriebseinheit für boote und boot mit der besagten antriebseinheit - Google Patents

Aussenbordantriebseinheit für boote und boot mit der besagten antriebseinheit Download PDF

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Publication number
EP3395669A1
EP3395669A1 EP18169583.4A EP18169583A EP3395669A1 EP 3395669 A1 EP3395669 A1 EP 3395669A1 EP 18169583 A EP18169583 A EP 18169583A EP 3395669 A1 EP3395669 A1 EP 3395669A1
Authority
EP
European Patent Office
Prior art keywords
boat
propulsion unit
housing
propeller
propeller assembly
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Withdrawn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
EP18169583.4A
Other languages
English (en)
French (fr)
Inventor
Donatella PANCHETTI
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.)
Hythem Srl
Original Assignee
Hythem Srl
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 Hythem Srl filed Critical Hythem Srl
Publication of EP3395669A1 publication Critical patent/EP3395669A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/02—Mounting of propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/007—Trolling propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/08—Means enabling movement of the position of the propulsion element, e.g. for trim, tilt or steering; Control of trim or tilt
    • B63H20/10—Means enabling trim or tilt, or lifting of the propulsion element when an obstruction is hit; Control of trim or tilt
    • B63H20/106—Means enabling lifting of the propulsion element in a substantially vertical, linearly sliding movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/08—Means enabling movement of the position of the propulsion element, e.g. for trim, tilt or steering; Control of trim or tilt
    • B63H20/12—Means enabling steering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B2035/009—Wind propelled vessels comprising arrangements, installations or devices specially adapted therefor, other than wind propulsion arrangements, installations, or devices, such as sails, running rigging, or the like, and other than sailboards or the like or related equipment
    • 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
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • B63H2005/1254—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H2020/003—Arrangements of two, or more outboard propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor

Definitions

  • the present invention relates to an outboard propulsion unit for boats, preferably for sailing boats, and a boat, preferably a sailing boat, which is provided with such propulsion unit.
  • boats for example sailing boats, are usually provided with a propulsion unit which is provided with an engine which is useful, for example, for mooring maneuvers in port, or when there is no wind.
  • outboard engines can be applied to the transom of the boat and are installed only when necessary, in order to avoid leaving the propeller in the sea, which would have a negative effect on the hydrodynamics of the boat as it would increase its drag.
  • Outboard engines are also known which are stably fixed to the transom and can optionally be swung about a horizontal axis in order to extract the propeller from the water when not in use.
  • a drawback of this solution is that when the motor is not in use the propeller increases the space occupation of the boat, protruding considerably from the transom and obstructing, for example, the stern mooring.
  • the motor has to be installed to port or starboard of the rudder, with the consequence that, when the boat is listing, the propeller might not be immersed.
  • the aim of the present invention is to provide an outboard propulsion unit for boats, preferably for sailing boats, and a boat, preferably a sailing boat, provided with such propulsion unit, that solves the above technical problem, eliminates the drawbacks, and overcomes the limitations of the known art, by making it possible to have an outboard propulsion unit available which can profitably be used even when the boat is listing.
  • an object of the present invention is to provide a propulsion unit and a boat that comprises such unit, in which the space occupation can be contained.
  • Another object of the invention consists in providing a propulsion unit and a boat that comprises such unit, which can be easily used.
  • Another object of the invention consists in providing a propulsion unit and a boat that comprises such unit, which are sturdy and capable of sustaining collisions with jetties or wharfs, especially during mooring.
  • Another object of the invention consists in providing a propulsion unit and a boat that comprises such unit, which are easy to clean.
  • an outboard propulsion unit in a boat preferably a sailing boat
  • said propulsion unit comprising two electric propulsion devices, each one provided at least with:
  • an outboard propulsion unit is shown in a boat 1, preferably a sailing boat, and is generally designated by the reference numeral 2.
  • the propulsion unit 2 comprises two electric propulsion devices 3, which are preferably separate and distinct and are applied to the transom 5 of a boat 1.
  • Each electric propulsion device 3 in turn comprises an external accommodation housing 4 which is fixed to the transom 5 of the boat and a propeller assembly 6, which can be shifted between an active condition in which it is extracted from the housing 4 and an inactive condition in which it is accommodated in the housing 4.
  • the propeller assembly 6 is driven by an electric motor 7.
  • the electric motor 7 is accommodated in the housing 4, preferably in a volume that is separate from the internal chamber that accommodates the propeller assembly 6 when the latter is in the inactive condition.
  • the volume that accommodates the electric motor and its components is separate and watertight. In this manner the electric motor and its circuits and components remain advantageously isolated from the marine environment and not exposed to the action of sea water, thus extending its operating life and reducing the need for maintenance.
  • kinematic chains for transmitting motion which are conventional and are not described in detail here.
  • the electric motor 7 is instead incorporated with the propeller assembly and accommodated in a watertight housing adjacent to the propeller assembly 6.
  • the electric motor with respect to a normal heat engine, makes it possible to reduce noise to levels that are substantially imperceptible by the occupants and to also reduce pollution; the electric motor can be powered with conventional means, for example accumulator batteries, solar panels, generators and the like.
  • the propeller assemblies 6 of the electric propulsion devices 3, in the active condition are extended at an angle with respect to a central plane of symmetry Y of the hull S of the boat 1.
  • the propeller assemblies 6 extend diverging downward, when the boat is in the condition of operation.
  • the central plane of symmetry Y is the plane that longitudinally divides the boat and if the boat has a keel, the plane Y passes through it.
  • the electric propulsion device 3 comprises a supporting shaft 8 which supports, at one of its ends, the propeller assembly 6.
  • the supporting shaft 8 extends inclined along an axis M which constitutes the axis of translation of the propeller assembly 6 from the inactive position to the active position and which is inclined with respect to the central plane of symmetry Y of the hull S of the boat 1.
  • the propeller assembly 6, in the preferred and illustrated form, comprises an actual propeller 6A and a substantially cylindrical section of duct 6B, in the form of a tube, which improves the propulsive work overall and at the same time protects the propeller 6A from any impacts, for example in mooring maneuvers or with very shallow sea floors.
  • the supporting shaft 8 is preferably contoured with a profile that is adapted to reduce drag.
  • the supporting shaft 8 can translate along the direction of motion M in order to allow the transition of the propeller assembly 6 between the active condition and the inactive condition, and vice versa.
  • the direction of motion M is substantially parallel to a plane that contains the transom 5 of the boat and is inclined with respect to the aforesaid central plane of symmetry Y.
  • the housing 4 comprises an engagement portion 9 which can be fixed to the transom 5 (for example by way of interposition of a fixing plate 20 or directly, by way of screw connections or the like) and a closing cover 10.
  • the engagement portion 9 and the cover 10 define an internal accommodation chamber for containing at least the propeller assembly 6 when in the inactive condition.
  • the protections 11 can be made for example of impact-resistant plastic material, such as ABS or the like, and optionally they can have a metallic stiffening core 11A which is at least partially covered by the plastic material 11B.
  • the impact-resistant protections 11 extend at least on a wall of the closing cover 10 that lies opposite from the engagement portion 9, i.e. on that part of the propulsion device 3 that is most exposed to impacts.
  • the protections 11 extend on the cover 10 so as to define a "cage" structure that encompasses at least part of the cover 10 and extends until it is fixed on the engagement portion 9, so that any stresses can be partially absorbed and partially relieved by way of the engagement portion 9 on the hull.
  • the housing 4 comprises a lower wall (delimiting the internal chamber) which can be opened, for example provided at least with closing fins 12 for opening and closing an opening 13 for access to the accommodation chamber and allowing at least the passage of the propeller assembly 6 (and of the shaft 8 in the embodiment shown) in the transition between the active condition and the inactive condition and vice versa.
  • the fins 12, once closed, define a watertight closure, so that when the propeller assembly 6 is in the retracted, inactive, position the chamber in which it is accommodated is watertight.
  • the supporting shaft 8 comprises a transverse wall 14 the dimensions and shape of which substantially coincide with those of the access opening 13.
  • the transverse wall 14 is provided on the shaft 8 in a fixing position, in which, when the propeller assembly 6 is in the active condition, it closes the access opening 13.
  • the housing 4 comprises a coupling flange 15 for a duct of a cleaning liquid and a diffuser for the cleaning liquid which is directed toward the accommodation chamber.
  • the cleaning liquid could be for example fresh water (optionally with the addition of a washing agent) which is sprayed on the propeller assembly 6 when it is in the inactive condition, accommodated in the housing, in order to clean it of sea water and of any dirt or vegetation that may form thereupon, thus extending its useful life and reducing the need for maintenance.
  • the invention generally also relates to an outboard propulsion unit 2 for a boat 1, which comprises a single propulsion unit 3 of the type just described and on which therefore we will say nothing further.
  • the invention generally also relates to a boat 1, preferably a sailing boat, characterized in that it comprises an outboard propulsion unit 2 of the type described above.
  • Figures 8-11 show a second embodiment of the propulsion unit 2 according to the invention.
  • the propulsion unit 2 comprises the housing 4 similarly to the previous embodiment and the propeller assembly, now designated with the reference numeral 26 and constituted by the propeller 26A and by the supporting shaft 28 inside which a shaft 30, supported by bearings 31-33, is accommodated for actuating the propeller 26A.
  • the shaft 30 is driven by a motor 40.
  • the propeller assembly 26 can be shifted between an active condition in which it is extracted from the housing 4, and an inactive condition, in which it is accommodated in the housing 4.
  • the propeller assembly 26 is configured so that the propeller can be positioned along the shaft 8, as illustrated in Figure 9 , and therefore it can be retracted into the housing 4, thus making it possible to have an opening or passage 13 of reduced dimensions and therefore not excessively invasive for the boat.
  • the propeller assembly 26 can be rotated so as to bring the propeller 26A into many active conditions, at different angles from the longitudinal axis of the boat.
  • the propeller assembly 26 comprises, fitted on the shaft 8, a disk-like element 35, constituted preferably by a pair of disks, which is provided on the side surface with a rack that permits the engagement of a pinion 36 of a motor 37.
  • the motor 37 makes it possible to rotate, by way of the rack, the propeller assembly 26 so as to change the position of the propeller 26A.
  • the propeller 26A can be raised into the housing so that it comes into abutment with a locator defined inside the housing 4, so as to angle it and enable its storage inside the housing in an angular position.
  • the propeller 26A occupies less space than the propeller in the vertical position, and therefore the housing 4 can be made with reduced dimensions.
  • Each one of the propulsion units 2 of the first embodiment can be provided according to what is described for the second embodiment.
  • outboard propulsion unit 2 and/or the boat 1, according to the present invention achieve the intended aim and objects, since they can profitably be used even when the boat is listing.
  • Another advantage consists in having an outboard propulsion unit 2 and/or a boat 1, according to the invention, the encumbrances of which are contained.
  • Another advantage consists in having an outboard propulsion unit 2 and/or a boat 1, according to the invention, that requires little maintenance.
  • Another advantage consists in having an outboard propulsion unit 2 and/or a boat 1, according to the invention, that are sturdy and capable of sustaining impacts with jetties or wharfs, especially during mooring.
  • Another advantage consists in having an outboard propulsion unit 2 and/or a boat 1, according to the invention, that are easy to clean.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Exhaust Silencers (AREA)
EP18169583.4A 2017-04-28 2018-04-26 Aussenbordantriebseinheit für boote und boot mit der besagten antriebseinheit Withdrawn EP3395669A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102017000046145A IT201700046145A1 (it) 2017-04-28 2017-04-28 Unità propulsiva fuoribordo per imbarcazioni ed imbarcazione provvista di tale unità propulsiva.

Publications (1)

Publication Number Publication Date
EP3395669A1 true EP3395669A1 (de) 2018-10-31

Family

ID=59811871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18169583.4A Withdrawn EP3395669A1 (de) 2017-04-28 2018-04-26 Aussenbordantriebseinheit für boote und boot mit der besagten antriebseinheit

Country Status (2)

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EP (1) EP3395669A1 (de)
IT (1) IT201700046145A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800010227A1 (it) * 2018-11-12 2020-05-12 Hytem S R L Incastellatura per natanti.
FR3119833A1 (fr) * 2021-02-18 2022-08-19 Bluenav Système de propulsion destiné à être intégré à un bateau

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4854902A (en) * 1986-04-17 1989-08-08 Havins Felton H Boat speed and direction control system
US5522335A (en) * 1995-01-30 1996-06-04 Westinghouse Electric Corporation Combined azimuthing and tunnel auxillary thruster powered by integral and canned electric motor and marine vessel powered thereby
US20020174818A1 (en) * 2001-05-25 2002-11-28 Von Wolske James P. Trim tabs and surface drive propeller bite control
WO2016166331A1 (fr) * 2015-04-15 2016-10-20 Charles Baumberger Propulseur pour un bateau

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4854902A (en) * 1986-04-17 1989-08-08 Havins Felton H Boat speed and direction control system
US5522335A (en) * 1995-01-30 1996-06-04 Westinghouse Electric Corporation Combined azimuthing and tunnel auxillary thruster powered by integral and canned electric motor and marine vessel powered thereby
US20020174818A1 (en) * 2001-05-25 2002-11-28 Von Wolske James P. Trim tabs and surface drive propeller bite control
WO2016166331A1 (fr) * 2015-04-15 2016-10-20 Charles Baumberger Propulseur pour un bateau

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800010227A1 (it) * 2018-11-12 2020-05-12 Hytem S R L Incastellatura per natanti.
FR3119833A1 (fr) * 2021-02-18 2022-08-19 Bluenav Système de propulsion destiné à être intégré à un bateau

Also Published As

Publication number Publication date
IT201700046145A1 (it) 2018-10-28

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