CA2509401A1 - Arrangement in a propulsion system - Google Patents

Arrangement in a propulsion system Download PDF

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Publication number
CA2509401A1
CA2509401A1 CA002509401A CA2509401A CA2509401A1 CA 2509401 A1 CA2509401 A1 CA 2509401A1 CA 002509401 A CA002509401 A CA 002509401A CA 2509401 A CA2509401 A CA 2509401A CA 2509401 A1 CA2509401 A1 CA 2509401A1
Authority
CA
Canada
Prior art keywords
propeller
cap
aft
arrangement according
flow plates
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.)
Granted
Application number
CA002509401A
Other languages
French (fr)
Other versions
CA2509401C (en
Inventor
Tomi Veikonheimo
Vladimir Alexandrovich Boushkovskiy
Alexander Vladimirovich Pustoshny
Sergey Viacheslavovich Kaprantzev
Irina Gennadievna Frolova
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.)
ABB Oy
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 CA2509401A1 publication Critical patent/CA2509401A1/en
Application granted granted Critical
Publication of CA2509401C publication Critical patent/CA2509401C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
    • B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
    • 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

Abstract

In a counter rotating propulsion system (CRP), whereby the aft propeller (22) and the forward propeller (6) have opposite directions of rotating and the aft and forward propellers are arranged against each other, the forward propeller is provided with a hubcap (30), wherein at least two equally distributed flow plates (28) are arranged on the cap (30) and the flow plates (28) are radially projecting from the cap (30).

Claims (11)

1. Arrangement in a counter rotating propulsion system (CRP), which propulsion system comprises an aft propeller (22) installed on a rotatable thruster (18) and a forward propeller (6) installed on a shaft (8) or on a thruster, which propellers are arranged on the essentially same axial line, whereby the aft propeller (22) and the forward propeller (6) have opposite directions of rotating and the aft and forward propellers are arranged against each other, the propellers having a hub with a cap, characterized in that at least two equally distributed flow plates (28) are arranged on the cap (30) of the forward propeller (6) and that the flow plates (28) are radially projecting from the cap (30).
2. Arrangement according to claim 1, characterized in that the forward hubcap (30) is well-streamlined.
3. Arrangement according to claim 1 or 2, characterized in that the forward hubcap (30) have diameter to length ratio not higher than 2.
4. Arrangement according to any of the claims 1 to 3, characterized in that the flow plates (28) are straight and similar to each other.
5. Arrangement according to any of the claims 1 to 4, characterized in that the number of the flow plates (28) is independent of the number of the blades (12) of the forward propeller (6) and the position of the flow plates (28) is independent of the position of the blades of the forward propeller.
6. Arrangement according to any of the claims 1 to 5, characterized in that the diameter of the tip edges of the plates (28) is in the range of 0,4 -2 times the maximum hub diameter.
7. Arrangement according to any of the claims 1 to 6, characterized in that the plates (28) are integrated to the cap (30).
8. Arrangement according to any of the claims 1 to 6, characterized in that the plates (28) are fixed to the cap (30) by welding or by bolts.
9. Arrangement according to any of the claims 1 to 8, characterized in that the aft propeller (22) is turnable and the aft propeller (22) is used to propel and to steer the vessel.
10. Arrangement according to any of the claims 1 to 9, characterized in that the aft propeller (22) being after the forward propeller (6) has a streamlined cap (26).
11. Arrangement in a counter rotating propulsion system (CRP), comprising an aft propeller (22) installed on a rotatable thruster (18) and a forward propeller (6) installed on a shaft (8) or on a thruster, whereby the aft propeller and forward propeller are arranged on the essentially same axial line, the aft propeller (22) and the forward propeller (6) have opposite directions of rotating and the aft and forward propellers are arranged against each other, wherein the propellers have a hub with a cap, whereby at least two equally distributed flow plates (28) are arranged on the cap (30) of the forward propeller (6) and the flow plates (28) are radially projecting from the cap (30).
CA2509401A 2002-12-20 2003-12-19 Arrangement in a propulsion system Expired - Fee Related CA2509401C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20022265A FI115210B (en) 2002-12-20 2002-12-20 Device in a propulsion system
FI20022265 2002-12-20
PCT/FI2003/000978 WO2004056654A1 (en) 2002-12-20 2003-12-19 Arrangement in a propulsion system

Publications (2)

Publication Number Publication Date
CA2509401A1 true CA2509401A1 (en) 2004-07-08
CA2509401C CA2509401C (en) 2011-07-19

Family

ID=8565138

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2509401A Expired - Fee Related CA2509401C (en) 2002-12-20 2003-12-19 Arrangement in a propulsion system

Country Status (15)

Country Link
US (1) US20060172632A1 (en)
EP (1) EP1578662B1 (en)
JP (1) JP4005601B2 (en)
KR (1) KR101127484B1 (en)
CN (1) CN1729123A (en)
AT (1) ATE488427T1 (en)
AU (1) AU2003292278B2 (en)
CA (1) CA2509401C (en)
DE (1) DE60335026D1 (en)
DK (1) DK1578662T3 (en)
ES (1) ES2356628T3 (en)
FI (1) FI115210B (en)
NO (1) NO334694B1 (en)
RU (1) RU2304545C2 (en)
WO (1) WO2004056654A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008149746A (en) * 2006-12-14 2008-07-03 Nakashima Propeller Co Ltd Contra-rotating propeller device for ship
EP2593356B1 (en) * 2010-07-12 2021-03-24 Kongsberg Maritime Sweden AB A propulsion unit for a marine vessel and a marine vessel having a propulsion unit
FI123164B (en) 2010-12-21 2012-11-30 Waertsilae Finland Oy WATER VESSEL
JP5972711B2 (en) * 2012-08-22 2016-08-17 三菱重工業株式会社 Counter-rotating propeller propulsion type ship
EP2897858A4 (en) * 2012-09-24 2016-07-06 Rolls Royce Ab Counter rotating pod with flap
CN105270588A (en) * 2015-10-30 2016-01-27 佛山市神风航空科技有限公司 Symmetric double-stage propelling device for ship
CN105523160A (en) * 2016-01-05 2016-04-27 上海船舶研究设计院 Hub connecting structure of forward propeller and rear propeller of contrarotating propeller
WO2017158205A1 (en) 2016-03-18 2017-09-21 Rolls-Royce Marine As Steerable grim-vane propulsion system
CN112061361B (en) * 2020-10-10 2022-05-27 宁波海伯集团有限公司 Marine propeller

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE606119C (en) 1933-11-12 1934-11-24 Nicholas Wladimir Akimoff Device to increase the efficiency of a screw propeller
CA1341010C (en) * 1986-06-30 2000-05-30 Minnesota Mining And Manufacturing Company Compounds useful in preparing fluorine-containing chiral smectic liquid crystals
EP0255136A1 (en) 1986-07-31 1988-02-03 Mitsui O.S.K. Lines, Ltd. A screw propeller boss cap with fins
JPS641690A (en) * 1987-06-24 1989-01-06 Ishikawajima Harima Heavy Ind Co Ltd Propeller idling device
EP0758606A1 (en) 1995-08-16 1997-02-19 Schottel-Werft Josef Becker GmbH & Co KG. Hub cap for ship propellers
US6899576B2 (en) * 1997-11-07 2005-05-31 Schottel Gmbh & Co. Kg Twin-propeller drive for watercraft
FI110595B (en) * 2000-01-28 2003-02-28 Abb Oy Arrangements in vessels, procedure for utilization of space in vessels and arrangements in installation of propulsion unit
US6280284B1 (en) * 2000-03-17 2001-08-28 Carl Winefordner Toy submarine with counter rotating propellers
FI116129B (en) * 2003-04-07 2005-09-30 Waertsilae Finland Oy Watercraft Propulsion Unit
FI20030556A0 (en) * 2003-04-11 2003-04-11 Abb Oy Method and equipment for steering the ship

Also Published As

Publication number Publication date
ATE488427T1 (en) 2010-12-15
AU2003292278A1 (en) 2004-07-14
US20060172632A1 (en) 2006-08-03
RU2304545C2 (en) 2007-08-20
JP2006510532A (en) 2006-03-30
DK1578662T3 (en) 2011-02-21
CA2509401C (en) 2011-07-19
KR20050084403A (en) 2005-08-26
DE60335026D1 (en) 2010-12-30
NO20053510L (en) 2005-07-18
EP1578662A1 (en) 2005-09-28
CN1729123A (en) 2006-02-01
FI20022265A (en) 2004-06-21
FI20022265A0 (en) 2002-12-20
JP4005601B2 (en) 2007-11-07
EP1578662B1 (en) 2010-11-17
FI115210B (en) 2005-03-31
AU2003292278B2 (en) 2008-10-09
WO2004056654A1 (en) 2004-07-08
RU2005122954A (en) 2006-01-20
ES2356628T3 (en) 2011-04-11
NO334694B1 (en) 2014-05-12
KR101127484B1 (en) 2012-03-23

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Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20161219