SHIP PROPULSION DEVICE, SHIP, AND SHIP PROPULSION METHOD

Title:

SHIP PROPULSION DEVICE, SHIP, AND SHIP PROPULSION METHOD

Document Type and Number:

WIPO Patent Application WO/2014/073243

Kind Code:

A1

Abstract:

A ship (1) comprises a supercharger (22) and is provided with: a gas turbine (14) that is driven by exhaust gas from a main engine (12) that drives a propulsion propeller (29); a steam turbine (18) that is driven by steam generated by the exhaust gas; ship equipment (44) that operates as a result of being supplied with power generated by a turbine generator (20); and a power-assist motor (46) that operates as a result of being supplied with power generated by the turbine generator (20) and that assists the main engine (12). A ship propulsion device (10) drives the assistance motor (46) using a surplus power amount that is the difference between the amount of power generated by the turbine generator (20) and the amount of power required by the ship equipment (44), and reduces the bleed air flow of exhaust gas to the gas turbine (14) when the power consumption amount of the power-assist motor (46) arrives at a preset power amount and the amount of generated power exceeds the total of the power consumption amount and the required power amount of the ship equipment (44).

Inventors:

ICHIKI YOSHIHIRO (JP)

Application Number:

PCT/JP2013/069059

Publication Date:

May 15, 2014

Filing Date:

July 11, 2013

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)

International Classes:

B63H21/14; B63H21/20; B63H21/17; B63J3/02; F01N5/04

Domestic Patent References:

WO2012039063A1

2012-03-29

Foreign References:

JP2011116152A	2011-06-16
JP2011020579A	2011-02-03
JP2011116152A	2011-06-16
JP2010222001A	2010-10-07

Other References: