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Patent Searching and Data


Title:
POWER SYSTEM FOR SHIP
Document Type and Number:
WIPO Patent Application WO/2010/113653
Kind Code:
A1
Abstract:
A motor/generator (12) is connected to the crankshaft of an engine (11). A rotational speed sensor (16) is provided to a main shaft (15) for connecting the engine (11) and a propeller (13). A PID control for fuel supply is performed on the basis of the actual rotational speed of the engine (11), which is detected by the rotational speed sensor (16), in order that the rotation of the engine (11) is maintained at a target rotational speed. A controller (19) determines whether the engine torque is sufficient or not from the difference between the target rotational speed and the actual rotational speed. When the engine torque is sufficient, an inverter/converter (17) is controlled to charge the energy recovered by the motor/generator (12) to a battery (18). When the engine torque is insufficient, the motor/generator (12) is driven as the motor to perform assistance.

Inventors:
MIYATA Junya (1-1, Tama 3-chome, Tamano-sh, Okayama 51, 〒7068651, JP)
宮田淳也 (〒51 岡山県玉野市玉3丁目1番1号 三井造船株式会社 玉野事業所内 Okayama, 〒7068651, JP)
Application Number:
JP2010/054637
Publication Date:
October 07, 2010
Filing Date:
March 18, 2010
Export Citation:
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Assignee:
MITSUI ENGINEERING & SHIPBUILDING CO., LTD. (6-4 Tsukiji 5-chome, Chuo-ku Tokyo, 39, 〒1048439, JP)
三井造船株式会社 (〒39 東京都中央区築地5丁目6番4号 Tokyo, 〒1048439, JP)
MIYATA Junya (1-1, Tama 3-chome, Tamano-sh, Okayama 51, 〒7068651, JP)
International Classes:
B63H21/12; B63H21/20; B63H21/21; B63J3/02; F02D29/02; F02D29/06; F02D41/14
Foreign References:
JP2001270495A
JP2008045484A
JP2006256608A
Attorney, Agent or Firm:
MATSUURA Takashi (Fuji Bldg. #418, 2-3 Marunouchi 3-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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