CN114750916A - Ship propeller device with auxiliary propeller - Google Patents

Ship propeller device with auxiliary propeller Download PDF

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Publication number
CN114750916A
CN114750916A CN202210638162.2A CN202210638162A CN114750916A CN 114750916 A CN114750916 A CN 114750916A CN 202210638162 A CN202210638162 A CN 202210638162A CN 114750916 A CN114750916 A CN 114750916A
Authority
CN
China
Prior art keywords
propeller
auxiliary
main
ship
hub
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
CN202210638162.2A
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Chinese (zh)
Inventor
朱文才
胡国良
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.)
East China Jiaotong University
Original Assignee
East China Jiaotong University
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 East China Jiaotong University filed Critical East China Jiaotong University
Priority to CN202210638162.2A priority Critical patent/CN114750916A/en
Publication of CN114750916A publication Critical patent/CN114750916A/en
Pending legal-status Critical Current

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    • 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
    • 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
    • B63H2001/145—Propellers comprising blades of two or more different types, e.g. different lengths
    • 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
    • B63H2005/106—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 with drive shafts of second or further propellers co-axially passing through hub of first propeller, e.g. counter-rotating tandem propellers with co-axial drive shafts

Abstract

The invention relates to a ship propeller device with an auxiliary propeller, which comprises a main propeller (1), an auxiliary propeller (2), a main propeller hub (3), an auxiliary propeller hub (4), a main propeller shaft (5) and an auxiliary propeller shaft (6), wherein the auxiliary propeller (2) is positioned behind the main propeller (1), the diameter of the auxiliary propeller (2) is smaller than that of the main propeller (1), the rotating directions of the auxiliary propeller and the main propeller are opposite, and central shafts of the main propeller (1) and the auxiliary propeller (2) are superposed. Compared with the traditional ship propeller, the ship propeller disclosed by the invention can effectively improve the propelling efficiency of the ship propeller, inhibit the generation of hub vortex cavitation bubbles, reduce the negative effects of the hub vortex cavitation bubbles on the noise, cavitation and the like of the ship propeller, and reduce the effects of the hub vortex cavitation bubbles on the cavitation and the like of a ship rudder.

Description

Ship propeller device with auxiliary propeller
Technical Field
The invention relates to the technical field of improving the propelling efficiency of a ship propeller and reducing hub vortex cavitation bubbles.
Background
The fourth greenhouse gas research report in 2020 by the international maritime organization indicates that greenhouse gas emissions (including carbon dioxide, methane, and nitrous oxide) from the shipping industry have increased from 9.77 million tons in 2012 to 10.76 million tons in 2018, with the emission of carbon dioxide being 9.62 million tons in 2012, and this amount increasing by 9.8% to 10.56 million tons in 2018. The share of the shipping industry in global carbon dioxide emissions increased from 2.76% in 2012 to 2.89% in 2018. In addition, the first international ship energy efficiency regulation, the Energy Efficiency Design Index (EEDI), defined by the international maritime organization marine environmental protection commission was in force in 2013 and was implemented in stages. In order to improve the performance of the marine propeller, researchers and scientific research institutes around the world have developed various new propellers, such as a counter-rotating propeller, a spinner fin propeller, a pilot edge protruding propeller, a winglet propeller, and the like.
Disclosure of Invention
The invention relates to a ship propeller device with an auxiliary propeller, which comprises a main propeller (1), an auxiliary propeller (2), a main propeller hub (3), an auxiliary propeller hub (4), a main propeller shaft (5) and an auxiliary propeller shaft (6), wherein the auxiliary propeller (2) is positioned behind the main propeller (1), the diameter of the auxiliary propeller (2) is smaller than that of the main propeller (1), the rotating directions of the auxiliary propeller and the main propeller hub are opposite, meanwhile, the diameter of the auxiliary propeller (2) is 0.3-1.5 times that of the main propeller hub (3), and central shafts of the main propeller (1) and the auxiliary propeller (2) are overlapped. Compared with the traditional ship propeller, the propeller device of the invention can generate more thrust than the traditional propeller under the same propelling speed. The propeller arrangement of the invention has a hub with a lower drag than conventional marine propellers, which contributes to an increase in the efficiency of the propeller. In the propeller wake, the hub vortex disappearance speed of the propeller device is higher than that of the traditional propeller, so that the generation of hub vortex cavitation bubbles can be inhibited, the negative effects of the hub vortex cavitation bubbles on the noise, cavitation and the like of the ship propeller are reduced, and the effects of the hub vortex cavitation bubbles on the cavitation and the like of the ship rudder are reduced. The invention provides a new design idea and method for designing the marine propeller.
The technical scheme adopted by the invention is as follows:
a ship propeller device with an auxiliary propeller is characterized in that: the propeller comprises a main propeller (1), an auxiliary propeller (2), a main propeller hub (3), an auxiliary propeller hub (4), a main propeller shaft (5) and an auxiliary propeller shaft (6); the diameter of the auxiliary propeller (2) is 0.3 to 1.5 times of the diameter of the main propeller hub (3); the rotating direction of the auxiliary propeller (2) is opposite to that of the main propeller (1), and the rotating speed of the auxiliary propeller (2) is 1.5 times to 3 times that of the main propeller (1).
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. The drawings in the following description are of one embodiment of the invention and it will be apparent to those skilled in the art that other drawings can be obtained from these drawings without inventive exercise.
Fig. 1 is a schematic side view of a marine propeller arrangement with an auxiliary propeller according to the invention.
Fig. 2 is a schematic front view of a propeller device for a ship having an auxiliary propeller according to the present invention.
Fig. 3 is a schematic view of a hub structure of a ship propeller device with an auxiliary propeller.
Wherein, 1 is the main screw propeller, 2 is the auxiliary screw propeller, 3 is the main propeller hub, 4 is the auxiliary propeller hub, 5 is the main propeller shaft, 6 is the auxiliary propeller shaft, 7 is the main screw propeller leading edge, 8 is the auxiliary screw propeller leading edge.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It should be apparent that the described embodiment is one embodiment of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, one embodiment of the present invention proposes a ship propeller device having an auxiliary propeller whose center is 0.3D (where D is the diameter of the propeller) from the center of the main propeller.
As shown in fig. 2, the diameter of the auxiliary propeller is 0.3 times the diameter of the main propeller, the diameter of the auxiliary propeller is equal to the hub diameter of the main propeller, and the rotation direction of the auxiliary propeller is opposite to the rotation direction of the main propeller.
As shown in fig. 3, the hub diameter of the main propeller is 0.3D, and the hub diameter of the auxiliary propeller is 0.12D.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, modifications may be made to the technical solutions described in the foregoing embodiments, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present invention.

Claims (1)

1. A ship propeller device with an auxiliary propeller is characterized in that: the propeller comprises a main propeller (1), an auxiliary propeller (2), a main propeller hub (3), an auxiliary propeller hub (4), a main propeller shaft (5) and an auxiliary propeller shaft (6); the diameter of the auxiliary propeller (2) is 0.3 to 1.5 times of the diameter of the main propeller hub (3); the rotating direction of the auxiliary propeller (2) is opposite to that of the main propeller (1), and the rotating speed of the auxiliary propeller (2) is 1.5 times to 3 times that of the main propeller (1).
CN202210638162.2A 2022-06-08 2022-06-08 Ship propeller device with auxiliary propeller Pending CN114750916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210638162.2A CN114750916A (en) 2022-06-08 2022-06-08 Ship propeller device with auxiliary propeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210638162.2A CN114750916A (en) 2022-06-08 2022-06-08 Ship propeller device with auxiliary propeller

Publications (1)

Publication Number Publication Date
CN114750916A true CN114750916A (en) 2022-07-15

Family

ID=82336959

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210638162.2A Pending CN114750916A (en) 2022-06-08 2022-06-08 Ship propeller device with auxiliary propeller

Country Status (1)

Country Link
CN (1) CN114750916A (en)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1185643A (en) * 1966-03-18 1970-03-25 Pametrada Gear Arrangement
US4828518A (en) * 1986-05-23 1989-05-09 Mitsubishi Jukogyo Kabushiki Kaisha Double reverse revolution propeller apparatus
JPH0585475A (en) * 1991-09-30 1993-04-06 Mitsubishi Heavy Ind Ltd Shaft system of double contra-rotating propeller for vessel
JPH0656083A (en) * 1992-08-06 1994-03-01 Mitsubishi Heavy Ind Ltd Internal/external shaft interlocking device for counter-rotating propeller using differential gear
KR20000018734U (en) * 1999-03-26 2000-10-25 김형벽 Auxiliary Propeller for Propeller Boss Cap
KR200324845Y1 (en) * 2003-06-10 2003-08-29 현대중공업 주식회사 Structure for installing Gear Box of Contra-Rotating Propeller
CN102159454A (en) * 2009-03-18 2011-08-17 株式会社三井造船昭岛研究所 Ship propulsion device and ship with same
US20130129514A1 (en) * 2011-11-18 2013-05-23 Becker Marine Systems GmgH & Co. KG Propeller arrangement, in particular for watercraft
KR20130100521A (en) * 2012-03-02 2013-09-11 삼성중공업 주식회사 Propulsion apparatus and ship having the same
CN104443333A (en) * 2014-11-28 2015-03-25 中国船舶重工集团公司第七○二研究所 Rudder ball type contra-rotating propeller
US20150367920A1 (en) * 2014-06-20 2015-12-24 Mehmet Nevres ULGEN Torque Boosting Propeller Device
KR20160011945A (en) * 2014-07-23 2016-02-02 동의과학대학 산학협력단 Auxiiary Thust Apparatus 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
CN206171771U (en) * 2016-11-04 2017-05-17 刘华锟 Double screw is used to boats and ships
CN208102296U (en) * 2018-03-16 2018-11-16 沅江东方红船舶有限公司 A kind of propeller for vessels

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1185643A (en) * 1966-03-18 1970-03-25 Pametrada Gear Arrangement
US4828518A (en) * 1986-05-23 1989-05-09 Mitsubishi Jukogyo Kabushiki Kaisha Double reverse revolution propeller apparatus
JPH0585475A (en) * 1991-09-30 1993-04-06 Mitsubishi Heavy Ind Ltd Shaft system of double contra-rotating propeller for vessel
JPH0656083A (en) * 1992-08-06 1994-03-01 Mitsubishi Heavy Ind Ltd Internal/external shaft interlocking device for counter-rotating propeller using differential gear
KR20000018734U (en) * 1999-03-26 2000-10-25 김형벽 Auxiliary Propeller for Propeller Boss Cap
KR200324845Y1 (en) * 2003-06-10 2003-08-29 현대중공업 주식회사 Structure for installing Gear Box of Contra-Rotating Propeller
CN102159454A (en) * 2009-03-18 2011-08-17 株式会社三井造船昭岛研究所 Ship propulsion device and ship with same
US20130129514A1 (en) * 2011-11-18 2013-05-23 Becker Marine Systems GmgH & Co. KG Propeller arrangement, in particular for watercraft
KR20130100521A (en) * 2012-03-02 2013-09-11 삼성중공업 주식회사 Propulsion apparatus and ship having the same
US20150367920A1 (en) * 2014-06-20 2015-12-24 Mehmet Nevres ULGEN Torque Boosting Propeller Device
KR20160011945A (en) * 2014-07-23 2016-02-02 동의과학대학 산학협력단 Auxiiary Thust Apparatus for Ship
CN104443333A (en) * 2014-11-28 2015-03-25 中国船舶重工集团公司第七○二研究所 Rudder ball type contra-rotating propeller
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
CN206171771U (en) * 2016-11-04 2017-05-17 刘华锟 Double screw is used to boats and ships
CN208102296U (en) * 2018-03-16 2018-11-16 沅江东方红船舶有限公司 A kind of propeller for vessels

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
中国海事服务中心组织: "海船船员适任证书知识更新 轮机长、轮机员、电子电气员", 30 April 2017, 大连海事大学出版社, pages: 152 - 153 *
吴有生，周如苹，颜开，周连第，杨显成: "第十一届全国水动力学学术会议暨第二十四届全国水动力学研讨会并周培源诞辰110周年纪念大会文集 下", 31 August 2012, 海军出版社, pages: 899 - 901 *
张钢，惠子刚: "船舶操纵", 30 June 2019, 大连海事大学出版社, pages: 32 - 34 *
杨琼方，刘承江: "舰船动力装置", 31 March 2022, 上海交通大学出版社, pages: 99 - 102 *

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