EP0298932A1 - Structure arrière de bateau pour le montage du gouvernail, l'hélice et son arbre, adaptable pour tout bateau - Google Patents

Structure arrière de bateau pour le montage du gouvernail, l'hélice et son arbre, adaptable pour tout bateau Download PDF

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Publication number
EP0298932A1
EP0298932A1 EP88830294A EP88830294A EP0298932A1 EP 0298932 A1 EP0298932 A1 EP 0298932A1 EP 88830294 A EP88830294 A EP 88830294A EP 88830294 A EP88830294 A EP 88830294A EP 0298932 A1 EP0298932 A1 EP 0298932A1
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EP
European Patent Office
Prior art keywords
mounting structure
post
stern
boss
stern mounting
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Withdrawn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
EP88830294A
Other languages
German (de)
English (en)
Inventor
Antonio Chichiarelli
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.)
Sintec Srl
Original Assignee
Sintec 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 Sintec Srl filed Critical Sintec Srl
Publication of EP0298932A1 publication Critical patent/EP0298932A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/40—Stern posts; Stern frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/06—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical
    • B63H3/08—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid
    • B63H3/081—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft
    • B63H3/082—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft the control element being axially reciprocatable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/06—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical
    • B63H3/08—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid
    • B63H3/081—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft
    • B63H3/082—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft the control element being axially reciprocatable
    • B63H2003/084—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft the control element being axially reciprocatable with annular cylinder and piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/06—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical
    • B63H3/08—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid
    • B63H3/081—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft
    • B63H3/082—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft the control element being axially reciprocatable
    • B63H2003/085—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft the control element being axially reciprocatable the control element having means for preventing rotation together with the propeller

Definitions

  • the subject matter of this invention is a stern mounting structure for rudder, screw propeller , and sha­fting, suitable for ship of any kind and use .
  • This struc­ture is arranged abaft the screw propeller and substantial­ly comprises an integral to the hull, foil-shaped post which sustains the rudderstock and an integral to the post boss which sustains the rudder heel and houses the last shafting bearing.
  • the post houses the most of the pitch control hydraulic devices in order to provide an apparatus wherein there are no rotating members under hyd­raulic pressure .
  • Pat. n. GB-A-446838 has the feature of varying the length of the cross section of the stationary rudder member in order to approach the contour of the after edges of the propeller blades; it does not take into account the disassembling of the screw propeller and the possible installation of a controllable pitch propeller.
  • Pat. n. US-A-2931443 has a completely different structure of the rudder, it has under pressure rotating members and does not consider the disassembling of the screw pro­peller.
  • Pat. n. FR-A-2044651 does not support the shaft with a bearing in its rear end, it has under pressure rota­ting members, the rudder has a completely different hydraulic motor, it does not consider the screw propeller disassembling.
  • Pat. n. WO-A-80/01373 has under pressure rotating members, it does not consider a bearing at the rear end of the shaft, it does not consider the screw propeller disassem­bling.
  • Pat. n. FR-A-844151 has the main purpose to allow the rear bearing maintenance and control from the inside of the hull and thus is not comparable with the present patent application.
  • the main object of the invention is to provide a new stern structure which al­lows to optimize the propeller disk in-flow .
  • this invention is particularly suitable to reduce the cavitation phenomena related to the flow disuniformity.
  • the applicant has also studied a non-symmetrical shaped post suitable for those special cases wherein the cavita­tion phenomenon can occur over the post .
  • This embodiment is sui­table for a mono screw ship fitted with an hydraulic CPP plant .
  • FIGS. 1-3 show the stern mounting structure comprising : a foil shaped post 10, which is integral to the stern PP of the ship NV.
  • This post has a sikle-shaped outline to house the rud­der blade and presents a boss 11 having an overhanged aftbody 12 and an ogive-shaped fore body 13.
  • post 10 supports the rudderstock 14, the rudder heel 16 of which is pivoted in the overhan­ged aft body 12 ; rudderstock 14 is partially housed in the vertical groove 18 of post 10 .
  • the forebody 13 of boss 11 houses the last bearing 19 of the shafting 20.
  • the boss forebody 13 and the screw propeller hub 22 are sized and shaped in such a way to avoid flow separation or vortices ; the same concept is valid for rudder 15 and post 10 .
  • Figures 4 and 5 show a variant stern mounting structure of the invention thus it is suitable to eliminate cavi­tation phenomenon over the post. This structure also allows mono screw ships to keep the course, eliminating the need of steering, thus giving a further advantage to the overall efficiency of the ship.
  • the side surfaces of the post are not symmetrically layed with respect to the ship symmetry plane, since they have both a curved surface while boss 11A and the rudderstock maintain their central position and rectilinear shape, respectively .
  • Figures 6-10 show the invention as applied to a CPP plant for a monoscrew ship .
  • This invention eliminates all the above mentioned draw backs as it allows to control the blade position making use of devices which are all housed either in the propel­ler hub or boss .
  • the oil pipes in the case of an hy­draulic operated plant, arrive to the screw boss through the post of the invention .
  • the pitch control device comprises sub­stantially three sections : - a first section housed in the ship hull ; comprising the auxiliaries ; - the second section, which is partially fitted inside post 110 and boss 111 and partially fitted inside the hub ; this section comprising non-rotating members ; - the third section, which is totally fitted inside hub 25 and comprises rotating members .
  • the first section comprises : - a high pressure oil pump 30, - a high pressure oil storage chamber 31 , - a hydraulic circuit including a distributing valve 32 and remote controlled valves 33, - an oil pressure regulating valve 34 , - a low pressure hydraulic circuit 37 .
  • the non-rotating section comprises : - a double-acting hydraulic unit consisting of a cylinder 40 and a piston 41 , - a first operating disk 42 , that is fixed , - a second movable-operating disk 43 , - a low pressure hydraulic actuator, includind a first chamber 44, which is internal to the piston 41, and a second chamber 45 which houses the forebody 46 of movable-­operating disk 43 .
  • the rotating section comprises : - a slidable plate 60 ( fig.8 ), - eccentric-holder slides 61 , - rotating disk 62 .
  • two groves 64 are machined on the opposite sides of slidable plate 60, which engage the slide-guides 75 machined on the hub .
  • an axial passage 47 is machined in piston 41 .
  • This passage allows chamber 45 , at the end 48 of piston 41, to communicate the oil pressure to chamber 44 . That is located between the end of drilled stem 49 and the housing thereaf which is in the head 50 of the axial hole 47 .
  • Drilled stem 49 is integral to the bottom 53 of cylinder 40. With such arrangement end chamber 45 communicates with chamber 44 trough passage 47 and then with low pressure circuit 37 trough axial passage 54 of stem 49 .
  • the high pressure circuit through distributing valve 32 and valves 33, controls the position of piston 41 by means of oil chambers 55 and 56,located on the sides of head 50.
  • the fixed-operating disk 42 which is integral to the piston 41, sets up the position of slidable plate 60.
  • This plate through eccentric-holder slides 61 and eccentrics 67, which are integral to the rotating disk 62 ,ultimately controls the blade pitch,being disk 62 bolted to the root 68 of screw blade 70 .(See figures 7,8,9) .
  • the position of fixed operating disk 42 is directly related to the position of piston 41 ; the position of movable-operating disk 43, that can slide axially to piston 41 ,is set up by the low pressure circuit action .
  • This circuit comprises : - oil storage chamber 35 , - pipe 37 , - passage 54 , - chamber 44 , - passage 47 , and chamber 45 .
  • disk 43 engages the plate 60 owing to the pressure in end chamber 45 .
  • the aims of the capability of sliding disk 43 are : - to take up automatically the slack due to the wear of antifriction bearings 65 and 66 , - to maintain a low pressure engagement between antifriction bearing 66 and the slidable plate 60.
  • Bearings 77 and 78 are provided for guiding and supporting piston 41 .
  • Stop ring 80 which slides in groove 81 , is mounted, at the end 79 of cylinder 40 , for preventing piston 41 to rotate.
  • the embodiment shown and illustrated is designed for a four-bladed propeller having the capability of the three positions : - ahead , - astern , - feathering and the intermediates ones of course .
  • the positions are represented: - ahead, with solid lines - astern , with dashed lines - feathering , with chain lines .
  • the shafting disassembly will be made by taking down the sections of the shaft line from the stern , being the length TR of the shaft sections less than the clearance between stern boss 73 and end 74 of the fore­body 13 of boss 11 .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Actuator (AREA)
EP88830294A 1987-07-10 1988-07-08 Structure arrière de bateau pour le montage du gouvernail, l'hélice et son arbre, adaptable pour tout bateau Withdrawn EP0298932A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT4816887 1987-07-10
IT8748168A IT1211647B (it) 1987-07-10 1987-07-10 Struttura di supporto per timone, elica e linea d'asse per navi di qualsiasi tipo ed uso

Publications (1)

Publication Number Publication Date
EP0298932A1 true EP0298932A1 (fr) 1989-01-11

Family

ID=11264969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88830294A Withdrawn EP0298932A1 (fr) 1987-07-10 1988-07-08 Structure arrière de bateau pour le montage du gouvernail, l'hélice et son arbre, adaptable pour tout bateau

Country Status (2)

Country Link
EP (1) EP0298932A1 (fr)
IT (1) IT1211647B (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0480211A1 (fr) * 1990-10-09 1992-04-15 Peter Müller Hélice à pas variable
EP0915010A3 (fr) * 1997-11-10 2001-09-05 Reintjes GmbH Installation hydraulique pour un bateau
DE102006045076A1 (de) * 2006-09-21 2008-04-03 Air Fertigung-Technologie Gmbh & Co.Kg Schiffsantrieb mit einem Verstellpropeller
DE102006045080A1 (de) * 2006-09-21 2008-04-03 Air Fertigung-Technologie Gmbh & Co.Kg Schiffsantrieb mit einem Verstellpropeller
DE102006045078A1 (de) * 2006-09-21 2008-04-03 Air Fertigung-Technologie Gmbh & Co.Kg Schiff mit einem Antrieb, der einen Verstellpropeller aufweist
DE102006045079A1 (de) * 2006-09-21 2008-04-17 Air Fertigung-Technologie Gmbh & Co.Kg Schiffsantrieb mit einem Verstellpropeller
WO2010033060A1 (fr) * 2008-09-22 2010-03-25 Berg Propulsion Technology Ab Système d’hélice réglable et procédé de distribution de fluide à ce système d’hélice réglable ou à partir de ce dernier
WO2011113477A1 (fr) * 2010-03-16 2011-09-22 Berg Propulsion Technology Ab Hélice
CN102785090A (zh) * 2012-07-17 2012-11-21 樊荣 一种加工大型船舶舵杆的支撑装置
WO2014198288A1 (fr) * 2013-06-10 2014-12-18 Berg Propulsion Technology Ab Configuration d'hélice
WO2018001457A1 (fr) * 2016-06-28 2018-01-04 Abb Schweiz Ag Agencement de propulsion et de direction d'un navire
CN108928432A (zh) * 2018-07-25 2018-12-04 上海外高桥造船有限公司 一种超大型油轮节能导管分段阶段的安装方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB446838A (en) * 1934-11-28 1936-05-07 Roy Mayo Improvements in or relating to the sterns of twin-screw vessels
FR844151A (fr) * 1937-10-02 1939-07-20 Perfectionnements à la construction de l'arrière des navires
US2317196A (en) * 1941-05-19 1943-04-20 Husted George Eddie Combination strut
US2931443A (en) * 1956-02-07 1960-04-05 Karlstad Mekaniska Ab Pitch control means for variable pitch propellers
FR2044651A1 (fr) * 1969-05-12 1971-02-26 Wieczorek Julien
WO1980001373A1 (fr) * 1979-01-09 1980-07-10 R Gloetzer Dispositif pour la modification de l'angle d'incidence des pales d'une helice a pales orientables

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB446838A (en) * 1934-11-28 1936-05-07 Roy Mayo Improvements in or relating to the sterns of twin-screw vessels
FR844151A (fr) * 1937-10-02 1939-07-20 Perfectionnements à la construction de l'arrière des navires
US2317196A (en) * 1941-05-19 1943-04-20 Husted George Eddie Combination strut
US2931443A (en) * 1956-02-07 1960-04-05 Karlstad Mekaniska Ab Pitch control means for variable pitch propellers
FR2044651A1 (fr) * 1969-05-12 1971-02-26 Wieczorek Julien
WO1980001373A1 (fr) * 1979-01-09 1980-07-10 R Gloetzer Dispositif pour la modification de l'angle d'incidence des pales d'une helice a pales orientables

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0480211A1 (fr) * 1990-10-09 1992-04-15 Peter Müller Hélice à pas variable
DE4031932A1 (de) * 1990-10-09 1992-04-16 Peter Mueller Verstellpropeller
EP0915010A3 (fr) * 1997-11-10 2001-09-05 Reintjes GmbH Installation hydraulique pour un bateau
DE102006045078B4 (de) * 2006-09-21 2010-04-29 Air Fertigung-Technologie Gmbh & Co.Kg Schiff mit einem Antrieb, der einen Verstellpropeller aufweist
DE102006045080A1 (de) * 2006-09-21 2008-04-03 Air Fertigung-Technologie Gmbh & Co.Kg Schiffsantrieb mit einem Verstellpropeller
DE102006045078A1 (de) * 2006-09-21 2008-04-03 Air Fertigung-Technologie Gmbh & Co.Kg Schiff mit einem Antrieb, der einen Verstellpropeller aufweist
DE102006045079A1 (de) * 2006-09-21 2008-04-17 Air Fertigung-Technologie Gmbh & Co.Kg Schiffsantrieb mit einem Verstellpropeller
DE102006045076A1 (de) * 2006-09-21 2008-04-03 Air Fertigung-Technologie Gmbh & Co.Kg Schiffsantrieb mit einem Verstellpropeller
WO2010033060A1 (fr) * 2008-09-22 2010-03-25 Berg Propulsion Technology Ab Système d’hélice réglable et procédé de distribution de fluide à ce système d’hélice réglable ou à partir de ce dernier
KR101525647B1 (ko) * 2008-09-22 2015-06-03 캐터필라 프로펄션 테크놀로지 에이비 조정 가능 프로펠러 장치 및 그와 같은 조정 가능 프로펠러 장치로/로부터 유체를 분배하는 방법
WO2011113477A1 (fr) * 2010-03-16 2011-09-22 Berg Propulsion Technology Ab Hélice
CN102785090A (zh) * 2012-07-17 2012-11-21 樊荣 一种加工大型船舶舵杆的支撑装置
WO2014198288A1 (fr) * 2013-06-10 2014-12-18 Berg Propulsion Technology Ab Configuration d'hélice
WO2018001457A1 (fr) * 2016-06-28 2018-01-04 Abb Schweiz Ag Agencement de propulsion et de direction d'un navire
CN108928432A (zh) * 2018-07-25 2018-12-04 上海外高桥造船有限公司 一种超大型油轮节能导管分段阶段的安装方法
CN108928432B (zh) * 2018-07-25 2019-08-09 上海外高桥造船有限公司 一种超大型油轮节能导管分段阶段的安装方法

Also Published As

Publication number Publication date
IT8748168A0 (it) 1987-07-10
IT1211647B (it) 1989-11-03

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