EP2969741A1 - Système marin de propulsion par réaction à hélice carénée - Google Patents

Système marin de propulsion par réaction à hélice carénée

Info

Publication number
EP2969741A1
EP2969741A1 EP14764267.2A EP14764267A EP2969741A1 EP 2969741 A1 EP2969741 A1 EP 2969741A1 EP 14764267 A EP14764267 A EP 14764267A EP 2969741 A1 EP2969741 A1 EP 2969741A1
Authority
EP
European Patent Office
Prior art keywords
impeller
diffuser
confusor
hub
flow
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
EP14764267.2A
Other languages
German (de)
English (en)
Other versions
EP2969741A4 (fr
Inventor
Stefan Broinowski
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
Priority to EP19214589.4A priority Critical patent/EP3708480B1/fr
Publication of EP2969741A1 publication Critical patent/EP2969741A1/fr
Publication of EP2969741A4 publication Critical patent/EP2969741A4/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
    • B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/14—Scrubbing; Scouring; Cleaning; Polishing combined with squeezing or wringing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/10—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof
    • B63H11/107—Direction control of propulsive fluid
    • B63H11/113—Pivoted outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
    • B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
    • B63H2011/081—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type with axial flow, i.e. the axis of rotation being parallel to the flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications
    • F01N2590/022—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications for jetskis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system

Definitions

  • Figure 1 is an illustration of a marine ducted propeller jet propulsion apparatus according to an exemplary embodiment of the present disclosure
  • Figure 4 is an exploded view of a marine ducted propeller jet propulsion apparatus according to an exemplary embodiment of Figure 1 ;
  • Figure 5 is an illustration of an impeller and a diffuser for a marine ducted propeller jet propulsion apparatus according to an exemplary embodiment of Figure 1;
  • Figure 7 is various views of an impeller for a marine ducted propeller jet propulsion apparatus according to an exemplary embodiment of the present disclosure
  • An interchangeable thrust bearing assembly 30 also provides for the thrust bearing to be changed in position whether the vessel 12 is in the water or not by disconnecting a drive coupling positioned at the end of a drive shaft and removing the securing bolts, which then allows the interchanging of the shaft thrust bearing assembly 30.
  • the thrust bearing assembly 30 is designed to be self-greasing to ensure that the bearings and seals are always lubricated.
  • the vanes 208 also act to dampen any preliminary pre-rotation or turbulence in the inlet water column to the impeller 202. It is important that the internal flow characteristic of the intake 203 accommodates the volumetric intrusion of the straightener and directional vanes 206, 208 by cross-section adjustment to the shape of the intake transition from the intake 203 to the impeller face to ensure that the flow through the intake to the impeller 202 is volumetrically uninhibited or restricted. Not doing so can create a flow restriction which can induce a pressure change in the flow to the impeller 202 which can induce pressure changes and aeration in the flow and cavitation.
  • an arm-hole duct 216 is provided to enable quick access to passage 212.
  • Duct 216 is situated at bend 120 and comprises a cylindrical housing 220, with an outer flange 222 and a plug 224.
  • Plug 224 is provided with a solid section 226 affixed to a flanged cover 228 which completely fills the duct housing 220.
  • Section 226 is provided with a smooth contoured surface that matches the surface section removed from the upper intake housing 104 in bend 120 when duct 216 is installed.
  • Duct 216 when properly plugged in position, poses no flow disruption.
  • a bypass valve assembly (not shown) can also be fitted in housing 104 near inlet 203 shown in FIGS. 1 and 2. Excess water is bled through bypass valve assembly (not shown) if water pressure between the hull of the vessel 12 and the induction inlet 106 exceeds handling capacity exceeds 3 to 6 psi. Excess water buildup, known colloquially as balling, is a common occurrence in marine jet propulsion units. Occurring at high vessel speeds when the vessel is undergoing sharp maneuvers and/or during rough sea conditions, excessive balling introduces a drag characteristic upon the hull of vessel 12 and affects the propulsive efficiency of unit 10.
  • the valve assembly (not shown) functions as an anti-balling device to relieve pressure.
  • the intake pressure release by-pass valve 232 can work in conjunction with the induction plate by allowing for excessive pressure build up in front of the impeller 202 to be released around the impeller into the exhaust heat exchanger 207.
  • the pressure by-pass valve pressure release valve (not shown) can be set to the desired pressure release as may be needed subject to sea conditions or the work load of the vessel to improve unit performance. This is controlled automatically by pressure sensors attached to the side of the housing 104 that relay the running pressure before the impeller 202 so the valve can be adjusted by a programmable controller (not shown).
  • the thickness 284 of blade 250 is low profile foiled in design as a result of improved design instead of substantially uniform as in previous defined.
  • Leading edge has substantially uniform tapering with a maximum thickness at a midpoint approximately equidistant from either edge.
  • the leading edge entry angle needs to be between 13 and 15 degrees related to the rotary velocity of the impeller 202.
  • the pitch effect of the impeller blade(s) 250 on the accelerated flow can be enhanced by the extension of the blade width beyond the required pitch length by adding a continued parallel section to end of the assembly impeller hub 252 and to the width of the blades representing a continuation of the exiting pitch of the blade 250.
  • the designed pitch of the impeller blade 250 can be a combined interpretation of the required efflux velocity efficiency and the power available from the power source driving the impeller 202. This power source can be from any type of drive, whether it is electric, gasoline, diesel, gas or alternative fuel driven.
  • the interchangeable diffuser/confusor blade component 245 can allow for the changing of the leading edge blades to the diffuser 242 to be replaced if damaged, or to change the pitch of the leading edge of the diffuser vanes 244a if they need to be adjusted to meet the needs of the trailing edge velocities of the impeller 202 or a change in pitch of the impeller blades 250.
  • the radii of the leading edge of the diffuser blades 244 to their straight trailing section can be of a greater radius than in previous designs to ensure a less turbulent transition of the flow from the impeller blade 250, which can allow the change from rotary flow to linear/laminar type flow to be less aggressive reducing turbulent flow.
  • the diffuser/confusor hub 243 preferably has an inwardly tapered convex surface and annular interior, oppositely disposed in relation to hub impeller 252.
  • Hub 243 comprises a large flat diameter leading end, decreasing variable diameter mid-section and a small diameter trailing end forming a rounded nose with a concentric bore cavity 246 drilled through the middle thereof and a central annular end extension.
  • Concentric outer annular cavity 246 is primarily for reduction of excess weight providing hub 252b with walls of substantially constant thickness.
  • a concentric inner annular bore 246 defines a cylindrical housing for a support bearing for impeller shaft 204 supporting impeller 202. .
  • Bore 246 has a reduced diameter in the nose section of hub 243 as required by design strength criteria.
  • Impeller shaft 204 extending axially through propulsion system 10 is provided with a first bearing support by interchangeable bearing assembly 30 mounted on inlet housing 203 and a second bearing support 247 at fixed hub 243.
  • Bearing assembly 30 includes housing, roller bearing and locking ring.
  • Bearing assembly 30 may also include a gear housing (not shown) for unit gearing to a particular prime mover requirement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Earth Drilling (AREA)
  • Nozzles (AREA)

Abstract

L'invention concerne une unité de propulsion à jet pour un vaisseau marin comprenant un diffuseur/confuseur; un ensemble de tuyère de commande de direction; et un rayon. Le rayon est introduit au niveau d'un point de transition entre le diffuseur/confuseur et l'ensemble de tuyère de commande de direction de manière que le diffuseur/confuseur puisse réguler la forme d'un flux d'eau sortant de l'unité de propulsion et puisse commander une accélération correspondante sur une large gamme de pressions différentielles associées à une large gamme de vitesses de vaisseaux, de manœuvres et d'états de la mer.
EP14764267.2A 2013-03-15 2014-03-17 Système marin de propulsion par réaction à hélice carénée Ceased EP2969741A4 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19214589.4A EP3708480B1 (fr) 2013-03-15 2014-03-17 Système marin de propulsion par jet d'hélice à conduit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361799274P 2013-03-15 2013-03-15
PCT/US2014/030864 WO2014145997A1 (fr) 2013-03-15 2014-03-17 Système marin de propulsion par réaction à hélice carénée

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP19214589.4A Division EP3708480B1 (fr) 2013-03-15 2014-03-17 Système marin de propulsion par jet d'hélice à conduit

Publications (2)

Publication Number Publication Date
EP2969741A1 true EP2969741A1 (fr) 2016-01-20
EP2969741A4 EP2969741A4 (fr) 2017-02-08

Family

ID=51538156

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14764267.2A Ceased EP2969741A4 (fr) 2013-03-15 2014-03-17 Système marin de propulsion par réaction à hélice carénée
EP19214589.4A Active EP3708480B1 (fr) 2013-03-15 2014-03-17 Système marin de propulsion par jet d'hélice à conduit

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19214589.4A Active EP3708480B1 (fr) 2013-03-15 2014-03-17 Système marin de propulsion par jet d'hélice à conduit

Country Status (15)

Country Link
US (1) US20160031540A1 (fr)
EP (2) EP2969741A4 (fr)
JP (4) JP2016513602A (fr)
KR (4) KR20230128153A (fr)
CN (2) CN111776184B (fr)
AU (5) AU2014232319B2 (fr)
CA (2) CA3170077C (fr)
IL (2) IL283249B2 (fr)
MX (2) MX2015012524A (fr)
MY (1) MY177926A (fr)
NZ (1) NZ712041A (fr)
RU (1) RU2666983C2 (fr)
SG (1) SG11201507518TA (fr)
WO (1) WO2014145997A1 (fr)
ZA (1) ZA201507024B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK3595967T3 (da) * 2017-03-14 2021-11-08 Misal Tasarim Danismanlik Makina Medikal Ithalat Ihracat San Ve Tic Ltd Sti Elektrisk undervandsjetmotor med flere statorer til mari-nefartøjer
CN109263841B (zh) * 2018-10-30 2021-05-11 中船黄埔文冲船舶有限公司 一种喷水推进装置的安装方法
CN110606184A (zh) * 2019-10-08 2019-12-24 中国海洋大学 活塞推进器及活塞推进设备
RU207396U1 (ru) * 2021-01-27 2021-10-26 Александр Михайлович Токунов Устройство для создания реактивной тяги водного судна
CN116495159B (zh) * 2023-05-04 2025-07-08 扬州大学 一种借助喷水推进泵装置内部高速水流的新型消涡方法

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US3187708A (en) * 1961-06-07 1965-06-08 Propulsion Res Inc Propulsion device
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DE1810474C3 (de) * 1967-11-24 1980-12-04 J.Samuel White & Co. Ltd., Isle Of Wight, Hampshire (Ver. Koenigreich) Wasserstrahlantrieb für Wasserfahrzeuge
US4182118A (en) * 1971-04-18 1980-01-08 Chronic Bill M Jet propulsion engine
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Also Published As

Publication number Publication date
KR20230128153A (ko) 2023-09-01
WO2014145997A1 (fr) 2014-09-18
US20160031540A1 (en) 2016-02-04
CA3170077A1 (fr) 2014-09-18
JP2025133743A (ja) 2025-09-11
ZA201507024B (en) 2017-03-26
KR20160025492A (ko) 2016-03-08
NZ712041A (en) 2018-05-25
EP2969741A4 (fr) 2017-02-08
WO2014145997A4 (fr) 2015-01-08
RU2015143082A (ru) 2017-04-26
AU2014232319A1 (en) 2015-10-01
AU2022200524B2 (en) 2024-06-06
CN111776184A (zh) 2020-10-16
AU2019275545A1 (en) 2020-01-02
CA3170077C (fr) 2025-10-07
MY177926A (en) 2020-09-28
IL283249B1 (en) 2023-09-01
KR20210005749A (ko) 2021-01-14
KR102378872B1 (ko) 2022-03-28
JP2020114732A (ja) 2020-07-30
RU2666983C2 (ru) 2018-09-13
CA2906929A1 (fr) 2014-09-18
AU2018201055A1 (en) 2018-03-08
CA2906929C (fr) 2022-11-01
CN111776184B (zh) 2022-11-04
IL241386A0 (en) 2015-11-30
IL283249B2 (en) 2024-01-01
AU2019275542A1 (en) 2020-01-02
JP2016513602A (ja) 2016-05-16
MX2015012524A (es) 2016-04-15
JP2023053982A (ja) 2023-04-13
SG11201507518TA (en) 2015-10-29
KR20220042245A (ko) 2022-04-04
AU2014232319B2 (en) 2018-03-08
IL283249A (en) 2021-07-29
EP3708480A1 (fr) 2020-09-16
EP3708480B1 (fr) 2022-05-18
IL241386B (en) 2021-05-31
AU2022200524A1 (en) 2022-02-17
CN105339259A (zh) 2016-02-17
MX2022007386A (es) 2022-07-13

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