JPS56167577A - Reducing device of hull resistance - Google Patents

Reducing device of hull resistance

Info

Publication number
JPS56167577A
JPS56167577A JP7122080A JP7122080A JPS56167577A JP S56167577 A JPS56167577 A JP S56167577A JP 7122080 A JP7122080 A JP 7122080A JP 7122080 A JP7122080 A JP 7122080A JP S56167577 A JPS56167577 A JP S56167577A
Authority
JP
Japan
Prior art keywords
projection
hull
reduce
hull resistance
water tank
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
JP7122080A
Other languages
Japanese (ja)
Other versions
JPS6140596B2 (en
Inventor
Kinya Tamura
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP7122080A priority Critical patent/JPS56167577A/en
Publication of JPS56167577A publication Critical patent/JPS56167577A/en
Publication of JPS6140596B2 publication Critical patent/JPS6140596B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • Y02T70/10—Measures concerning design or construction of watercraft hulls

Landscapes

  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

PURPOSE: To reduce the hull resistance by providing a projection to reduce the hull resistance in the rear end of the stern with a ballast water tank to balance the weight of the projection against the buoyancy and a flooding and drainage machanism inside for preventing the projection from generation of excessive stress.
CONSTITUTION: A ballast water tank 16 is provided inside a projection 9, a wave- killing body fixedly projected backward from the rear end 11 at the full load draft line 10 of a main hull 1 in the stern to reduce the hull resistance, with an air-escape pipe 17a above and a water-intake pipe 17b below. When a draft line 10a is change, water is poured into or drained from the ballast water tank 16 via the lower pipe 17b to balance the weight of the projection 9 against the buoyancy automatically, and the connecting part between the projection 9 and the main hull 1 is prevented from concentration of excessive stresses.
COPYRIGHT: (C)1981,JPO&Japio
JP7122080A 1980-05-28 1980-05-28 Reducing device of hull resistance Granted JPS56167577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7122080A JPS56167577A (en) 1980-05-28 1980-05-28 Reducing device of hull resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7122080A JPS56167577A (en) 1980-05-28 1980-05-28 Reducing device of hull resistance

Publications (2)

Publication Number Publication Date
JPS56167577A true JPS56167577A (en) 1981-12-23
JPS6140596B2 JPS6140596B2 (en) 1986-09-10

Family

ID=13454366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7122080A Granted JPS56167577A (en) 1980-05-28 1980-05-28 Reducing device of hull resistance

Country Status (1)

Country Link
JP (1) JPS56167577A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3236188A1 (en) * 1982-06-23 1983-12-29 Kawasaki Jukogyo K.K., Kobe, Hyogo Device for reducing the wave resistance of a vessel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3236188A1 (en) * 1982-06-23 1983-12-29 Kawasaki Jukogyo K.K., Kobe, Hyogo Device for reducing the wave resistance of a vessel

Also Published As

Publication number Publication date
JPS6140596B2 (en) 1986-09-10

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