WO2018198063A1 - Unité de propulsion intérieure pour bateaux et bateau équipé de ladite unité de propulsion - Google Patents

Unité de propulsion intérieure pour bateaux et bateau équipé de ladite unité de propulsion Download PDF

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Publication number
WO2018198063A1
WO2018198063A1 PCT/IB2018/052898 IB2018052898W WO2018198063A1 WO 2018198063 A1 WO2018198063 A1 WO 2018198063A1 IB 2018052898 W IB2018052898 W IB 2018052898W WO 2018198063 A1 WO2018198063 A1 WO 2018198063A1
Authority
WO
WIPO (PCT)
Prior art keywords
propeller
propeller assembly
propulsion unit
boat
hull
Prior art date
Application number
PCT/IB2018/052898
Other languages
English (en)
Inventor
Claudio BOSSI
Original Assignee
B4S Sa
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 B4S Sa filed Critical B4S Sa
Priority to EP18726530.1A priority Critical patent/EP3615417A1/fr
Publication of WO2018198063A1 publication Critical patent/WO2018198063A1/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
    • B63H5/125—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
    • 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
    • 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
    • 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
    • B63H5/18—Arrangements on vessels of propulsion elements directly acting on water of propellers of emergency propellers, e.g. arranged at the side of the vessel
    • B63H5/20—Arrangements on vessels of propulsion elements directly acting on water of propellers of emergency propellers, e.g. arranged at the side of the vessel movable from a working position to a non-working position
    • 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
    • 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
    • B63H2001/165—Hubless propellers, e.g. peripherally driven shrouds with blades projecting from the shrouds' inside surfaces
    • 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
    • B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
    • B63H23/24—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
    • 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
    • B63H9/00—Marine propulsion provided directly by wind power

Definitions

  • the present invention relates to an inboard propulsion unit for boats, preferably but not exclusively for sailing boats, and a boat, preferably but not exclusively 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.
  • Such inboard engines comprise a propeller assembly that protrudes from the bottom of the hull and remains in the water; the heat engine is accommodated in the hull and is connected to the propeller assembly with a transmission shaft which passes through the hull.
  • the aim of the present invention consists in providing an inboard propulsion unit for boats, and a 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 inboard propulsion unit available which can profitably be used even when the boat is listing.
  • an object of the present invention is to provide such 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 such a propulsion unit and a boat that comprises such unit, which can be easily used.
  • Another object of the invention consists in providing such a propulsion unit and a boat that comprises such unit, which are less subject to operations of maintenance and/or cleaning.
  • Another object of the invention consists in providing such a propulsion unit and a boat that comprises such unit, which present reduced hydrodynamic drag when the motor is not used.
  • Figure 1 is a rear view of an embodiment of a propulsion unit applied to a boat in a first condition, according to the invention
  • FIGS 2 and 3 are side views of the propulsion unit of Figure 1, in two different conditions;
  • Figures 4 and 5 are perspective views of part of the propulsion unit of Figure 1 in two different conditions, corresponding to the conditions in Figures 2 and 3;
  • Figure 6 is an exploded perspective view of part of the propulsion unit of the previous figures.
  • Figure 7 is a perspective view of a second embodiment of a propulsion unit applied to a boat, in a first active condition
  • Figure 8 is a perspective view of the propulsion unit of Figure 7 in an initial inactive condition
  • Figure 9 is a perspective view of the propulsion unit of Figures 7 and 8 in a final inactive condition
  • Figure 10 is a partially cross-sectional front elevation view of the propulsion unit of Figures 7-9 in a final inactive condition.
  • a boat 1 preferably a sailing boat, which is provided with an inboard propulsion unit 2 according to the invention.
  • the propulsion unit 2 comprises two electric propulsion devices 3, each one provided at least with a propeller assembly 6, which can be moved between an active condition, in which it protrudes downward from the hull S ( Figures 1, 2 and 4), and an inactive condition, in which it is contained inside the hull S ( Figures 3, 5).
  • Each propulsion device 3 also comprises an electric motor for driving the propeller assembly 6.
  • the electric motor is accommodated in a housing 4, which is part of the electric propulsion device 3 and is mounted internally in the hull S; we will return to the details of the housing 4 shortly.
  • the motor is accommodated in the housing 4 in a volume that is separate from the internal chamber thereof 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 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 longitudinal 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.
  • each electric propulsion device 3 comprises a respective supporting shaft 8 which supports, at one of its ends, the propeller assembly 6.
  • the latter comprises a propeller 6A which is coupled to the supporting shaft 8, at a free end thereof.
  • the supporting shaft 8 can translate along a direction of motion M in order to allow the transition of the respective propeller assembly 6 between the active condition and the inactive condition, and vice versa; the direction of motion M lies on a substantially vertical plane, with the boat in the configuration for operation, and is inclined with respect to the central plane of symmetry Y of the hull S of the boat 1.
  • the propeller assembly 6 also comprises two bulkheads 12A and 12B:
  • a second bulkhead 12B arranged substantially transversely on the supporting shaft 8 and parallel to the first bulkhead 12 A, located on the side of the propeller 6A that lies opposite the one supporting the first bulkhead 12 A, in such a way that the propeller 6 A and optionally the duct 6B that encompasses it are interposed between the two bulkheads 12A and 12B.
  • the bulkheads 12A and 12B are adapted to generate a watertight closure of the housing 4, for example by being provided with sealing gaskets that cooperate between the bulkheads 12A, 12B and a lip 12C of the housing 4.
  • actuation means are provided, preferably electric, such as for example an electric motor for actuating and adapted guides and slides, which are conventional and will not be further discussed here.
  • each propulsion device 3 comprises a housing 4 which is accommodated inside the hull, in order to accommodate at least the propeller assembly 6 in the inactive condition.
  • the housing 4 is a watertight seal, so as to define the inner accommodation chamber in which the propeller assembly 6 and the shaft 8 are arranged in the inactive condition.
  • 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 inside of the housing 4.
  • 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.
  • Another possibility to carry out the cleaning of the housing 4 containing the propeller is to convey the exhaust gases of the boat's endothermic motor to the housing proper.
  • an inboard propulsion unit 2 for a boat 1 which comprises:
  • a housing 4 designed to be fitted inside a hull of a boat at a perforated passage 13 which is provided in the hull, the housing 4 being provided with a passage port 4A which can be aligned with the perforated passage 13;
  • 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 inboard propulsion unit 2 comprises the supporting shaft 8 which supports, at one of its ends, the propeller assembly 6, which comprises a propeller 6A which is coupled to the supporting shaft 8, at a free end thereof, the propeller assembly 6 comprising a first bulkhead 12A which is provided on the side of the propeller 6A that lies opposite the one coupled to the supporting shaft 8, and a second bulkhead 12B which is arranged substantially transversely on the supporting shaft 8 and is parallel to the first bulkhead 12A, so that:
  • the first bulkhead 12A closes the passage port 4A of the housing 4, preferably creating a watertight closure
  • the second bulkhead 12B closes the passage port 4A of the housing 4, preferably creating a watertight closure.
  • Figures 7-10 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, for actuating the propeller 26A is accommodated.
  • 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 8, and therefore it can be retracted into the housing 4 (and into the hull of the boat), 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 lateral surface with a rack that allows 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. It is therefore possible for example to rotate the propeller 26A so that it is arranged with the vanes in the direction of the bow-stern axis of the boat, so as to enable lateral movements of the boat, or according to any other angle with respect to the longitudinal axis of the boat.
  • 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 26 A 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.
  • another object of the invention is a boat 1, preferably a sailing boat, which comprises an inboard propulsion unit 2 according to the foregoing description.
  • the inboard propulsion unit 2 and/or the boat 1 achieve the intended aim and objects since they can profitably be used even when the boat is listing.
  • Another advantage consists in having an inboard propulsion unit 2 and/or a boat 1, according to the invention, that requires little maintenance.
  • Another advantage consists in having an inboard propulsion unit and/or a boat, 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)

Abstract

L'invention concerne, dans un bateau (1), une unité de propulsion intérieure (2), l'unité de propulsion (2) comprenant deux dispositifs de propulsion électriques (3), chacun comportant au moins : - un ensemble hélice (6), qui peut être déplacé entre un état actif, dans lequel il fait saillie vers le bas à partir de la coque (S), et un état inactif, dans lequel il est contenu à l'intérieur de la coque (S); - un moteur électrique permettant d'entraîner l'ensemble hélice (6); les ensembles hélice (6) des dispositifs de propulsion électriques (3) s'étendant, dans l'état actif, selon un certain angle par rapport à un plan de symétrie central (Y) de la coque (S) du bateau (1).
PCT/IB2018/052898 2017-04-28 2018-04-26 Unité de propulsion intérieure pour bateaux et bateau équipé de ladite unité de propulsion WO2018198063A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18726530.1A EP3615417A1 (fr) 2017-04-28 2018-04-26 Unité de propulsion intérieure pour bateaux et bateau équipé de ladite unité de propulsion

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102017000046071 2017-04-28
IT102017000046071A IT201700046071A1 (it) 2017-04-28 2017-04-28 Unità propulsiva entrobordo per imbarcazioni ed imbarcazione provvista di tale unità propulsiva.

Publications (1)

Publication Number Publication Date
WO2018198063A1 true WO2018198063A1 (fr) 2018-11-01

Family

ID=60138717

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2018/052898 WO2018198063A1 (fr) 2017-04-28 2018-04-26 Unité de propulsion intérieure pour bateaux et bateau équipé de ladite unité de propulsion

Country Status (3)

Country Link
EP (1) EP3615417A1 (fr)
IT (1) IT201700046071A1 (fr)
WO (1) WO2018198063A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111204432A (zh) * 2020-03-14 2020-05-29 涡阳县信隆船舶附件有限公司 一种船用保形增稳推进装置
EP4344991A1 (fr) * 2022-09-30 2024-04-03 Volvo Penta Corporation Système d'entraînement marin avec surface de palier de centrage
EP4344992A1 (fr) 2022-09-30 2024-04-03 Volvo Penta Corporation Système d'entraînement marin réglable à nettoyage automatique
WO2024067989A1 (fr) * 2022-09-30 2024-04-04 Volvo Penta Corporation Système d'entraînement marin réglable
WO2024067988A1 (fr) * 2022-09-30 2024-04-04 Volvo Penta Corporation Unité d'entraînement marin dotée d'un boîtier non cylindrique

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807347A (en) * 1972-10-20 1974-04-30 W Baldwin Retractable thru-hull drive system for boats
DE3201654A1 (de) * 1982-01-21 1983-07-28 Schwing-Hydraulik Elektronik GmbH + Co., 4690 Herne Propellerruder fuer schiffe, insbesondere fuer segelyachten
US5522744A (en) * 1995-05-01 1996-06-04 Schlogel; Richard Retractable marine power drive
DE202005004406U1 (de) * 2005-03-18 2005-06-09 Kirstein, Hans Antrieb für ein Schiff
GB2429685A (en) * 2005-09-06 2007-03-07 John Tanat Williams Retractable vessel propulsion unit
KR20140076940A (ko) * 2012-12-13 2014-06-23 삼성중공업 주식회사 인입 가능한 스러스터를 구비한 선박

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807347A (en) * 1972-10-20 1974-04-30 W Baldwin Retractable thru-hull drive system for boats
DE3201654A1 (de) * 1982-01-21 1983-07-28 Schwing-Hydraulik Elektronik GmbH + Co., 4690 Herne Propellerruder fuer schiffe, insbesondere fuer segelyachten
US5522744A (en) * 1995-05-01 1996-06-04 Schlogel; Richard Retractable marine power drive
DE202005004406U1 (de) * 2005-03-18 2005-06-09 Kirstein, Hans Antrieb für ein Schiff
GB2429685A (en) * 2005-09-06 2007-03-07 John Tanat Williams Retractable vessel propulsion unit
KR20140076940A (ko) * 2012-12-13 2014-06-23 삼성중공업 주식회사 인입 가능한 스러스터를 구비한 선박

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111204432A (zh) * 2020-03-14 2020-05-29 涡阳县信隆船舶附件有限公司 一种船用保形增稳推进装置
CN111204432B (zh) * 2020-03-14 2021-07-23 涡阳县信隆船舶附件有限公司 一种船用保形增稳推进装置
EP4344991A1 (fr) * 2022-09-30 2024-04-03 Volvo Penta Corporation Système d'entraînement marin avec surface de palier de centrage
EP4344992A1 (fr) 2022-09-30 2024-04-03 Volvo Penta Corporation Système d'entraînement marin réglable à nettoyage automatique
WO2024067986A1 (fr) 2022-09-30 2024-04-04 Volvo Penta Corporation Système d'entraînement marin réglable doté d'un nettoyage automatique
WO2024067987A1 (fr) * 2022-09-30 2024-04-04 Volvo Penta Corporation Système d'entraînement marin doté d'une surface de palier de centrage
WO2024067989A1 (fr) * 2022-09-30 2024-04-04 Volvo Penta Corporation Système d'entraînement marin réglable
WO2024067988A1 (fr) * 2022-09-30 2024-04-04 Volvo Penta Corporation Unité d'entraînement marin dotée d'un boîtier non cylindrique

Also Published As

Publication number Publication date
EP3615417A1 (fr) 2020-03-04
IT201700046071A1 (it) 2018-10-28

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