WO2025109236A2 - Hélice toroïdale pour bateaux - Google Patents

Hélice toroïdale pour bateaux Download PDF

Info

Publication number
WO2025109236A2
WO2025109236A2 PCT/ES2024/070717 ES2024070717W WO2025109236A2 WO 2025109236 A2 WO2025109236 A2 WO 2025109236A2 ES 2024070717 W ES2024070717 W ES 2024070717W WO 2025109236 A2 WO2025109236 A2 WO 2025109236A2
Authority
WO
WIPO (PCT)
Prior art keywords
toroidal
propeller
boats
blades
modules
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.)
Pending
Application number
PCT/ES2024/070717
Other languages
English (en)
Spanish (es)
Other versions
WO2025109236A3 (fr
Inventor
Pablo Alfonso Gonzalez Abal
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2025109236A2 publication Critical patent/WO2025109236A2/fr
Publication of WO2025109236A3 publication Critical patent/WO2025109236A3/fr
Anticipated expiration legal-status Critical
Pending 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
    • B63H1/26—Blades
    • B63H1/265—Blades each blade being constituted by a surface enclosing an empty space, e.g. forming a closed loop
    • 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
    • B63H1/20—Hubs; Blade connections
    • 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
    • B63H1/28—Other means for improving propeller efficiency
    • B63H2001/283—Propeller hub caps with fins having a pitch different from pitch of propeller blades, or a helix hand opposed to the propellers' helix hand

Definitions

  • the present invention relates to a toroidal propeller for vessels, which features a significant improvement in repair and maintenance capabilities. Furthermore, the blades are removable and adjustable.
  • Propulsion systems for boats typically comprise fixed-pitch propellers with blades that are not interchangeable or removable, that is, they are monobloc propellers. It is true that there are partially removable fixed-pitch propellers for boats that comprise a hub, a plurality of radial blades or vanes, and a series of fastening elements, but they are rarely used and are inefficient, due to, among other things, manufacturing and maintenance costs, as well as propulsion efficiency. In this sense, through the hub, the propeller receives motion from a shaft with the collaboration of the corresponding transmission driven by the respective engine. In turn, the blades are assembled to this hub, distributed angularly equidistant around its periphery, which is inefficient in monobloc toroidal propellers and/or removable fixed-pitch propellers.
  • Propellers with toroidal blades, a central through hole, and a curved part forming the contour are known in the state of the art. Examples can be found in ES2706413T3 and ES2882203T3.
  • propellers are monobloc and offer very attractive performance, but they are difficult to manufacture because they require a very precise curvature. Therefore, a broken blade cannot be easily repaired and the entire propeller must be replaced. On the one hand, this results in longer vessel downtime, since a repair is usually faster than a replacement, where a new propeller must be obtained. On the other hand, this involves waste. of energy and materials to produce a whole new propeller.
  • the invention is a toroidal propeller for vessels according to the claims. In its various embodiments, it solves the problems of the prior art.
  • This toroidal propeller comprises a hub that can be connected to a vessel's shaft, for which it has a coupling hole with its steering wheel.
  • This hub supports a plurality of toroidal blades.
  • the hub is divided into a fixed internal section, where the shaft is attached, and a series of removable modules that carry the blades.
  • the hub can be solid or lightweight.
  • each module carries a blade. This embodiment is more preferred when the number of blades is low or they have a small angle with the axis.
  • each module carry half of a blade, so that once both are assembled, the halves can be joined together to form the blade.
  • This connection can be direct or via a detachable part.
  • the invention can also comprise more portions of the blade module, these being joined together with detachable parts to form the blade.
  • modules can have protrusions and recesses on their sides, interlocking with the recesses and protrusions of the adjacent modules. In this way, the modules can only be moved in a direction parallel to the sides, which normally corresponds to the direction of the axis.
  • the core may be terminated in a cap, the shape of which is not limited by the invention. For example, it may be flanged or solid. If no cap is fitted, the core may be longitudinally perforated.
  • the invention allows for the use of standardized cores, such as cylindrical, prismatic, and/or with flat rather than rounded faces, among others, allowing for stock availability and thus reducing delivery times and lowering the cost of the systems. This also results in more durable products that are adaptable to other vessel propulsion changes.
  • the invention can be applied independently of the vessel's propulsion, allowing for variations in power and torque, and its application can be carried out on variable nozzles or shafts. It even allows, in the event of modifications to the engine or gearbox, the blades to be changed to adapt their geometry to the new propulsion.
  • This system is adaptable to various solutions and can be applied regardless of the number of blades and their parameters or geometry, adapting to the required propulsion.
  • This system allows us to manufacture balanced and milled replacement blades with the same center of gravity as the monobloc type. This ensures a quick changeover, which is especially beneficial for large vessels due to the type of work they perform and the downtime costs associated with large vessels. Furthermore, the detachability offers other benefits, such as using bronze cores and steel blades, or vice versa, depending on the vessel's use. Whether for reasons of cost-efficiency preference or maintenance, the ability to detach the core and blades provides advantages and versatility.
  • Fig. 1 Perspective view of a first embodiment of the invention.
  • Fig. 2 Perspective view of a second embodiment of the invention.
  • Fig. 3 Perspective view of a third embodiment of the invention.
  • Fig. 4 Detail of a blade or vane separated into halves, with a connecting piece.
  • Fig. 5 Perspective view of a fourth embodiment of the invention.
  • Figure 1 shows a first embodiment of the invention. It starts from a core (1) from which a series of blades (2) emerge, formed by toroidal structures.
  • the core (1) comprises an inner part (11) that can be fixed to the axis of the vessel and an outer part formed by a series of removable modules (12).
  • the preferred way of fixing the modules (12) to the inner part (11) of the core (1) is by means of screws or similar perpendicular to the direction of the axis. In this way, the separation forces, due to centrifugal forces, are better resisted.
  • each module (12) carries a blade (2), so that when the module (12) is disassembled, the corresponding blade (2) is removed. This means that it is easier to replace a damaged blade (2) by changing the entire module (12).
  • FIG 2 shows a second embodiment with similar parts.
  • the module (12) of this embodiment carries only one half (21, 22) of the blade (2).
  • a insert (3) can be placed to join both halves (21, 22).
  • the modules (12) of these two embodiments may have projections and recesses on their sides, so as to act as a guide for the adjacent modules (12). This means that the module cannot be pulled out by centrifugal force, but can only move in the direction shown in Figures 1 and 2.
  • the modules (12) of this second embodiment are grouped into two levels, so that they can be joined to both halves (21, 22). As can be seen, these modules (12) will be misaligned when the blade (2) is very inclined with respect to the axis direction, since each half (21, 22) emerges from the core (1) at a different point. Thus, to remove a module (12) from the second level (on the right in Figure 2), it is necessary to first extract two modules (12) from the other level.
  • each module (12) is straightforward.
  • the second level requires a certain free distance from the core (1) to the shaft support, so that the movement represented can be performed.
  • the modules (12) that carry each half (21, 22) are dismantled in a direction parallel to the shaft and in opposite directions, simplifying the maintenance and replacement of the elements.
  • the inner part (11) of the core (1) may be cylindrical. In the case of Figure 1, where the module (12) occupies the entire length of the inner part (11), this can also be prismatic. The only difference is that the inner part of the modules (12) will have the appropriate shape, flat or concave.
  • the core (1) may be terminated in a cap (4), the shape of which is not limited by the invention, and may be winged or solid. If a cap (4) is not provided, the core (1) may be longitudinally perforated.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • General Details Of Gearings (AREA)

Abstract

L'invention concerne une hélice toroïdale pour bateaux, qui comprend un moyeu, une pluralité de pales ou d'aubes radiales et une série d'éléments de fixation, et qui est conçue de manière qu'un moyeu peut être raccordé à un axe du bateau et supporte la pluralité de pales, caractérisée en ce que le noyau est divisé en une partie interne fixe et une série de modules démontables qui portent les pales ou aubes, lesdites pales étant ainsi démontables et orientables, l'hélice étant en outre conçue de manière que le moyeu peut porter une coiffe.
PCT/ES2024/070717 2023-11-23 2024-11-19 Hélice toroïdale pour bateaux Pending WO2025109236A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES202330966A ES3021109A1 (es) 2023-11-23 2023-11-23 Hélice toroidal para embarcaciones
ESP202330966 2023-11-23

Publications (2)

Publication Number Publication Date
WO2025109236A2 true WO2025109236A2 (fr) 2025-05-30
WO2025109236A3 WO2025109236A3 (fr) 2025-07-17

Family

ID=94386365

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2024/070717 Pending WO2025109236A2 (fr) 2023-11-23 2024-11-19 Hélice toroïdale pour bateaux

Country Status (2)

Country Link
ES (1) ES3021109A1 (fr)
WO (1) WO2025109236A2 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2706413T3 (es) 2012-12-10 2019-03-28 Sharrow Eng Llc Hélice
ES2882203T3 (es) 2016-05-27 2021-12-01 Sharrow Eng Llc Hélice

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE63661C (de) * 1900-01-01 CH. MYERS, E. MYERS und J. DAVIES in Manchester, England Schiffsschraube
GB190901011A (en) * 1909-01-15 1909-09-23 William Henry Ireland Improvements in the Construction of Propeller-blade Centres and adaptable to al Classes of Propellers for Ocean-going Purposes
US1363660A (en) * 1916-11-07 1920-12-28 Fleur Essaie La Propeller
GB189201A (en) * 1921-08-22 1922-11-22 Thomas Rutherford Macmechen Improvements in and relating to screw propellers and fans
US4417852A (en) * 1981-08-28 1983-11-29 Costabile John J Marine propeller with replaceable blade sections
SE521420C2 (sv) * 1998-06-22 2003-10-28 Itt Mfg Enterprises Inc Löphjul
SE527245C2 (sv) * 2005-01-27 2006-01-24 Per Olov Karemar Propeller där varje propellerblad består av ett böjt plåtelement som bildar ett par skänklar och ett omböjt parti som förbinder skänklarna
ES1071458Y (es) * 2009-11-05 2010-05-27 Abal Pablo Alfonso Gonzalez Dispositivo de propulsion de embarcaciones
TR201714615A2 (tr) * 2017-09-29 2019-04-22 Mehmet Nevres Uelgen Gi̇zleni̇r düşey eksenli̇ pervane terti̇bati

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2706413T3 (es) 2012-12-10 2019-03-28 Sharrow Eng Llc Hélice
ES2882203T3 (es) 2016-05-27 2021-12-01 Sharrow Eng Llc Hélice

Also Published As

Publication number Publication date
WO2025109236A3 (fr) 2025-07-17
ES3021109A1 (es) 2025-05-26

Similar Documents

Publication Publication Date Title
ES2325818T3 (es) Conjunto de cojinetes para soportar un eje de transmision en un alojamiento.
BRPI1000083A2 (pt) propulsor para embarcações
ES2765099T3 (es) Hélice de buque, hélice de bomba o hélice de turbina
ES2823152T3 (es) Máquina eléctrica refrigerada por una hélice de doble flujo
ES2446354T3 (es) Embarcación con un propulsor y procedimiento para instalar un propulsor
CN111645838A (zh) 导管桨支撑分区预旋导流装置
WO2025064367A1 (fr) Hélice d'avion/bateau à pales en forme de pelle
WO2025109236A2 (fr) Hélice toroïdale pour bateaux
US7025642B1 (en) Boat propeller
WO2011039391A1 (fr) Dispositif de propulsion de bateaux
BRPI0609820A2 (pt) rotor para uma bomba centrìfuga e bomba centrìfuga
ES2356628T3 (es) Dispositivo en un sistema de propulsión.
KR102884831B1 (ko) 해양 선박을 위한 추진 조립체
US2359466A (en) Air impeller
KR20140123279A (ko) 가변식 블레이드를 갖는 워터제트용 임펠러
US20050175458A1 (en) Propeller, propeller propulsion system and vessel comprising propulsion system
US1073413A (en) Propeller.
ES2205588T3 (es) Un propulsor marino, sistema de propulsor y sus componentes, y un metodo para conectar un propulsor.
ES2745123T3 (es) Boquilla de unidad de propulsión modular
US3085632A (en) Fan
GB2063378A (en) Propulsion apparatus
ES2202610T3 (es) Impulsor.
CN210479010U (zh) 一种具有可调式高效气动力螺旋桨
KR101447867B1 (ko) 후류 고정날개를 구비한 선박
ES2317799B1 (es) Sistema de propulsion con helice y tobera fija respecto a la helice.