EP1990273A2 - Système de propulsion pour bateau - Google Patents

Système de propulsion pour bateau Download PDF

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Publication number
EP1990273A2
EP1990273A2 EP07018298A EP07018298A EP1990273A2 EP 1990273 A2 EP1990273 A2 EP 1990273A2 EP 07018298 A EP07018298 A EP 07018298A EP 07018298 A EP07018298 A EP 07018298A EP 1990273 A2 EP1990273 A2 EP 1990273A2
Authority
EP
European Patent Office
Prior art keywords
housing
propelling system
boat
waterway
propeller
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Withdrawn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
EP07018298A
Other languages
German (de)
English (en)
Inventor
Yeun-Junn Lin
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.)
Solas Science & Engineering Co Ltd
Original Assignee
Solas Science & Engineering Co Ltd
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 Solas Science & Engineering Co Ltd filed Critical Solas Science & Engineering Co Ltd
Publication of EP1990273A2 publication Critical patent/EP1990273A2/fr
Withdrawn legal-status Critical Current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
    • 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
    • B63H25/48—Steering or slowing-down by deflection of propeller slipstream otherwise than by rudder
    • 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
    • B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
    • 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
    • B63H25/06—Steering by rudders
    • B63H2025/066—Arrangements of two or more rudders; Steering gear therefor
    • 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
    • B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens

Definitions

  • the present invention relates generally to a propelling system for use in a boat and more specifically, to a propelling system that can broaden the-usable internal space of the boat.
  • FIG. 1 is a schematic drawing showing a propelling system equipped in a small boat 1 according to a prior art.
  • the middlebody of hull of the small boat 1 is installed with an engine 110 to which a driving shaft 120 is connected.
  • the driving shaft 122 slantingly downward penetrates through the bottom 130 of the small boat 1 and is supported by an A-shaped frame 140 and then coupled with a propeller 15. Further, the small boat 1 is provided at a stern 160 thereof with a rudder 170.
  • the A-shaped frame 140, the rudder 170 and the propeller 150 are located under the bottom 130 of the small boat 1, these components not only cause relatively higher water drag to reduce the speed of the small boat 1, but also tend to bump a rock or a driftwood accidentally, resulting in damage of themselves.
  • the engine 110 is generally mounted inside the small boat 1 at the middlebody or afterbody of the boat; therefore, the inside space of the small boat 1 around the middlebody or afterbody area may not be usable for other purpose, i.e. the usable inside space of the small boat 1 is restricted.
  • FIG. 2 a schematic drawing showing a propelling system equipped in a big yacht 2 according to another prior art.
  • the engine 210 is mounted in the middlebody inside the hull of the yacht 2, which limits the utilization of the internal space of the yacht 2, and the propeller 220 and the rudder 270 are located under the bottom of the yacht 2, which may easily hit a rock or hurt divers or the endangered species of marine fauna, such as manatee, or even resulting in that seaweed may be wound on the propeller 220 to be uprooted.
  • the yacht 2 when the yacht 2 would like to sail backward, the yacht 2 has to change its direction through bow thrusters 240 mounted to a bow 230 thereof and stern thrusters 260 mounted to a stern 250 thereof.
  • the mechanisms of the bow thrusters 240 and the stern thrusters 260 will also occupy partial internal space of the yacht 2.
  • the present invention has been accomplished in view of the above-noted circumstances. It is therefore one objective of the present invention to provide a propelling system for a boat, which can increase the usable internal space of the boat.
  • the propelling system for a boat comprises a housing, a propeller, a driving device and a guide ring.
  • the housing is adapted for mounting to a stern of the boat and has a receiving chamber inside and a waterway at a bottom side thereof.
  • the propeller is rotatably disposed in the waterway of the housing.
  • the driving device is mounted in the receiving chamber of the housing and has a driving member and a linking member pivotally coupled to the driving member.
  • the guide ring is connected to the linking member of the driving device and located in the waterway of the housing in such a way that the guide ring surrounds blades of the propeller and is pivotally moveable relative to the propeller by the actuation of the driving member through the linking member.
  • the housing, driving device, propeller and guide ring of the propelling system of the present invention can be disposed outside the stern of the boat rather than inside the boat, the usable internal space of the boat increases.
  • the sailing direction of the boat can be controlled.
  • the bottom of the guide ring can be set in flush with the bottom of hull of the boat so as to reduce water drag when the boat sails and protect divers and the endangered species of marine fauna and flora from directly hitting by the propeller.
  • a propelling system 20 in accordance with a preferred embodiment of the present invention comprises a housing 30, a propeller 40, a hydraulic driving device 50 and a guide ring 60.
  • the propelling system 20 is installed in a small boat having a hull 10, an engine 12 mounted inside the hull 10 near a stern 14 of the hull 10 and a deck 16 fixed to the stern 14 of the hull 10.
  • the housing 30 has a front end thereof affixed to the stern 14 of the hull 10 of the small boat and is located under the deck 16 of the hull 10 of the small boat, as shown in FIG 8 .
  • the housing 30 includes a base 34 and a lid 32 covered on a top side of the base 34 to define a receiving chamber 36 therebetween.
  • the base 34 has two sidewalls 35a and 35b, each of which has a first section 352 extending slantingly from a front end of the base 34 to a position P located at the middle of the sidewalls 35a or 35b, and a second section 354 extending horizontally from the position P to a rear end of the base 34 such that the rear end of the base 34 is higher in elevation than the front end of the base 34.
  • the base 34 is provided at a bottom side thereof with a semicircular waterway 38, which has an inclined section 382 defining between the first sections 352 of the sidewalls 35a and 35b of the housing 30 and a horizontal section 384 defining between the second sections 354 of the sidewalls 35a and 35b of the housing 30.
  • the housing 30 includes a supporting member 39 having a shaft sleeve 392 and three ribs 394 , each of which is connected with the shaft sleeve 392 and a periphery wall of the waterway 38 .
  • the propeller 40 has a hub on which a plurality of blades 44 are provided.
  • One end of a shaft 42 passes through the shaft sleeve 392 of the supporting member 39 and then coupled with the hub, and the other end of the shaft 42 penetrates through the front end of the housing 30 and then coupled with engine 12 of the small boat through a shaft coupling 46 such that the blades 44 can be driven to rotate by the engine 12 through the shaft 42.
  • the shaft 42 is located in the waterway 38 and lower in elevation than the second sections 354 of the sidewalls 35a and 35b of the housing 30, and the blades 44 are located at the horizontal section 384 of the waterway 38 and close to the rear end of the housing 30.
  • the hydraulic driving device 50 includes a casing 52 installed inside the receiving chamber 36 of the housing 30, a hydraulic driving member 54, which is a cylinder in this embodiment and mounted to the casing 52 and electrically connected with a steering system (not shown), and a linking member 56 pivotally connected to the hydraulic driving member 54 through a joint 542 at a distal end of the linking member 56 .
  • the guide ring 60 is located in the waterway 38 of the housing 30 and connected to the linking member 56 of the hydraulic driving device 50 through a shaft 62 in such a way that the guide ring 60 surrounds the blades 44 of the propeller 40 and is pivotable about the shaft 62 counterclockwise and clockwise from the view point of FIGS. 10 and 12 by the actuation of the driving member 54 through the linking member 56 for deflection, rightward and leftward in a range within 45 degrees in each way relative to the blades 44 of the propeller 40, as shown in FIGS. 11 and 13 .
  • the engine 12 can be installed inside the hull 10 near the stern 14 of the small boat and use diesel such that the hull 10 provides a big internal space for use.
  • the housing 30 can increase floatation of the stern 14 of the small boat to prevent the stern 14 of the small boat overweight.
  • the bottom side of the guide ring 60 is substantially flush with the bottom of the hull 10, i.e. the small boat can be deemed as a flat-bottomed boat, for reducing water resistance when the small boat moves forward.
  • the small boat is suitable for use in a shallow area and won't easily hit a rock or hurts divers or the endangered species of marine fauna and flora.
  • the propeller 40 When the boat driver wants to steer the small boat backward, the propeller 40 has to be rotated reversely to suck water into the waterway 38 of the housing 30 through the guide ring 60. Under this circumstance, because the second sections 354 of the sidewalls 35a and 35b of the housing 30 are higher in elevation than the shaft 42 of the propeller 40, water is sucked into the waterway 38 and then ejected out of the second' sections 354 of the side walls 35a and 35b of the housing 30. Therefore, when the guide ring 60 is turned to the left, as shown in FIG. 12 and 13 , water is ejected out of the second section 354 of the side walls 35a of the housing 30, thereby causing the stern 14 of the small boat to be turned to the left.
  • the propelling system 20 of the present invention also can be mounted to a big boat, as shown in FIG. 9 .
  • a top side of the base 34 of the housing 30 is directly fixed to the bottom 72 of the big boat without using the lid 32 for enabling the hydraulic driving device 50 to be located inside the big boat.
  • the bottom side of the guide ring 60 can be still maintained flush with the bottom 72 of the big boat, thereby achieving the objectives of the present invention.
  • FIG. 14 shows another application of the propelling system of the preferred embodiment of the present invention.
  • Two propelling systems 20 are symmetrically mounted at two sides of the stern to provide a high propelling force.
  • the propelling systems 20 can be operated respectively or synchronously through a connecting member 22.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
EP07018298A 2007-05-09 2007-09-18 Système de propulsion pour bateau Withdrawn EP1990273A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007101017688A CN101301927A (zh) 2007-05-09 2007-05-09 动力式船艇的推进系统

Publications (1)

Publication Number Publication Date
EP1990273A2 true EP1990273A2 (fr) 2008-11-12

Family

ID=39683908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07018298A Withdrawn EP1990273A2 (fr) 2007-05-09 2007-09-18 Système de propulsion pour bateau

Country Status (2)

Country Link
EP (1) EP1990273A2 (fr)
CN (1) CN101301927A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014046698A (ja) * 2012-08-29 2014-03-17 Imott Co Ltd プロペラガード

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104554684B (zh) * 2015-01-06 2017-05-17 舟山欣臻船舶设计有限公司 一种多功能船用导流罩
CN105857561A (zh) * 2016-02-29 2016-08-17 浙江海洋学院 一种滚塑游艇的舵机控制装置
CN108974313B (zh) * 2018-07-27 2024-08-16 钦州学院 可摆动角度的导流罩装置
CN109239288A (zh) * 2018-08-29 2019-01-18 福清市新大泽螺旋藻有限公司 一种有机小球藻培养用水质监测装置及其使用方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014046698A (ja) * 2012-08-29 2014-03-17 Imott Co Ltd プロペラガード

Also Published As

Publication number Publication date
CN101301927A (zh) 2008-11-12

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