Title:
A blade angle arithmetic unit, a blade angle control system, a vessel, and the blade angle control method
Document Type and Number:
Japanese Patent JP6233976
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To actuate a main engine in a proper load region even when a required power supply amount is generated by a main shaft power generator.SOLUTION: A blade angle arithmetic unit 11 is used for controlling a variable pitch propeller 20 of a vessel 1, which includes: the variable pitch propeller 20 with a variable blade angle; and a main shaft power generator 40 which uses a part of an output of a main engine 30 to supply power. The blade angle arithmetic unit includes: a blade angle reduction amount arithmetic section 110 which calculates a blade angle reduction amount, on the basis of a power supply amount of the main shaft power generator 40 and a rotational frequency of the main engine 30; and a blade angle arithmetic section 111 which subtracts the blade angle reduction amount calculated by the blade angle reduction amount arithmetic section 110 from a prescribed reference blade angle.SELECTED DRAWING: Figure 1
Inventors:
Ryota Kuroiwa
Akira Doi
Onozuka Masanori
Tokuda Kei Akira
Akira Doi
Onozuka Masanori
Tokuda Kei Akira
Application Number:
JP2014230653A
Publication Date:
November 22, 2017
Filing Date:
November 13, 2014
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
B63H3/10; B63H21/21; B63J3/02
Domestic Patent References:
| JP58192200U | ||||
| JP5863592A | ||||
| JP20136531A |
Foreign References:
| WO2014059995A1 |
Attorney, Agent or Firm:
Ryuichiro Mori
Masatake Shiga
Tadashi Takahashi
Tetsuo Yamazaki
Yasushi Matsunuma
Masatake Shiga
Tadashi Takahashi
Tetsuo Yamazaki
Yasushi Matsunuma
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