Title:
VESSEL
Document Type and Number:
Japanese Patent JP2018111449
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a vessel with a stern nozzle arranged immediately before a propeller, capable obtaining high energy saving effect with a nozzle as a whole and capable of greater improvement in propulsion force by the stern nozzle.SOLUTION: A rear edge of a stern nozzle 10 is shaped to have a circular shape or an approximately circular shape with deviation amount outward from the inscribed circle thereof to be within 10% of the diameter of the inscribed circle as viewed from the stern direction and is arranged immediately before a propeller 3. An inflection point 11d at which the inclination angles of nozzle forward edges 11aa, 11ba of the stern nozzle 10 are changed as viewed from the horizontal direction of the hull, is provided. Both a center Cn of the rear edge circle or the inscribed circle of the stern nozzle 10 and the inflection point 11d are configured, regarding the vertical direction of the hull 2, to be in between a position 3% below a propeller diameter Dp and a position 10% above the propeller diameter Dp from a position on a top edge of a propeller boss, regarding the vertical direction of the hull.SELECTED DRAWING: Figure 4
More Like This:
| WO/2002/057134 | THRUST ENHANCING PROPELLER GUARD ASSEMBLY |
| JPH07156875 | SMALL SHIP |
Inventors:
KIMURA KOYU
YAMAMOTO KOTAKU
AKIBAYASHI HIDESATO
IKEDA TAKEHIRO
FUJITA SATOSHI
OKA SAORI
SEGAWA KOHEI
YAMAMOTO KOTAKU
AKIBAYASHI HIDESATO
IKEDA TAKEHIRO
FUJITA SATOSHI
OKA SAORI
SEGAWA KOHEI
Application Number:
JP2017004325A
Publication Date:
July 19, 2018
Filing Date:
January 13, 2017
Export Citation:
Assignee:
MITSUI E & S HOLDINGS CO LTD
International Classes:
B63H5/16; B63B1/32
Domestic Patent References:
| JPH082486A | 1996-01-09 | |||
| JP2009214866A | 2009-09-24 | |||
| JPS56147195U | 1981-11-06 | |||
| JPH09175488A | 1997-07-08 |
Foreign References:
| KR101453210B1 | 2014-10-22 | |||
| KR101425369B1 | 2014-08-06 |
Other References:
北沢孝宗，引野正己，藤本留男，上田耕平: "“Increase in the Propulsive Efficiency of a Ship by a Nozzle Installed just in front of a Propeller", 関西造船協会誌, JPN6020000084, 30 March 1982 (1982-03-30), JP, pages 73 - 78, ISSN: 0004200030
FENG FENG, XIN CHANG, XIANRU CHENG, CHAO WANG: "“Research on the Model Test of Super Stream Duct(SSD)”", APPLIED MECHANICS AND MATERIALS, vol. vol.170-173, JPN6019048995, 2012, CH, pages 2736 - 2742, ISSN: 0004200031
何徳明，李遠林: "“船舶前置導管流態的数値計算与分析”", 船舶工程, JPN6020000088, 24 August 2004 (2004-08-24), CN, pages 22 - 25, ISSN: 0004200032
FENG FENG, XIN CHANG, XIANRU CHENG, CHAO WANG: "“Research on the Model Test of Super Stream Duct(SSD)”", APPLIED MECHANICS AND MATERIALS, vol. vol.170-173, JPN6019048995, 2012, CH, pages 2736 - 2742, ISSN: 0004200031
何徳明，李遠林: "“船舶前置導管流態的数値計算与分析”", 船舶工程, JPN6020000088, 24 August 2004 (2004-08-24), CN, pages 22 - 25, ISSN: 0004200032
Attorney, Agent or Firm:
Seiryu International Patent Service Corporation
Takayoshi in the daytime
Masao Sakaizawa
Takayoshi in the daytime
Masao Sakaizawa