EP 3225823 B1 20191211 - SHIP PROPULSION SYSTEM
Title (en)
SHIP PROPULSION SYSTEM
Title (de)
SCHIFFSANTRIEBSSYSTEM
Title (fr)
SYSTÈME DE PROPULSION DE NAVIRE
Publication
Application
Priority
JP 2015210498 A 20151027
Abstract (en)
[origin: EP3225823A1] Provided is a ship propulsion system (1) including a variable pitch propeller (15) including a pitch change mechanism (16), a gas engine (2) including a plurality of cylinders (21), for rotating the propeller (15), a plurality of fuel injection valves (5) provided to the gas engine (2), corresponding to the cylinders (21), respectively, and a control device (6) for controlling the mechanism (16) and the valves (5). When a misfire occurs continuously in any of the cylinders (21), the control device (6) suspends fuel gas injection from the fuel injection valve (5) corresponding to the misfired cylinder (21) and lowers a limit of a fuel injection amount of other fuel injection valves (5), and reduces a pitch of the propeller (15). The ship propulsion system (1) maintains the output of the gas engine after a cylinder cutoff as high as possible without lowering the efficiency during a normal operation.
IPC 8 full level
F02D 41/00 (2006.01); B63H 3/10 (2006.01); B63H 21/21 (2006.01); F02D 41/22 (2006.01)
CPC (source: EP)
B63H 3/10 (2013.01); F02D 41/0025 (2013.01); F02D 41/008 (2013.01); B63H 2021/216 (2013.01); F02D 41/0007 (2013.01); F02D 2200/1015 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3225823 A1 20171004; EP 3225823 B1 20191211; JP 2017082655 A 20170518; JP 6178825 B2 20170809
DOCDB simple family (application)
EP 16194927 A 20161020; JP 2015210498 A 20151027