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How to select the gearbox for marine diesel engine ?

Views:0     Author:Site Editor     Publish Time: 2015-03-23      Origin:Site

For new shipbuliding vessel,  to select an available gearbox is very important thing.  

1.  To confirm the engine power,  it depends on the gearbox size directly.
2.  To confirm the speed of engine,  it is scope of gearbox, if the gearbox speed capacity of  1000-1800 RPM,  but type is 2100 RPM, so it can not be matched.
3.  The transferred capacity,  it refers to the gearbox transferred ability,   Power / Speed, the unit is KW/RPM or HP/RPM.  
4.   The most important thing is to confirm speed ratio,  called reduction speed ratio,  it refers to engine power output changes into propeller speed.  
       it must be confirmed.
5.    To fix the flywheel and housing size,  because the gearbox flywheel and housing size must be in accordence with marine diesel engine.  (same size)
6.   connection style, There are two types ,  direct connection,  flanged connection.  
       As for small gearbox, it can be directly connected to engine.  
       But as for large engine, it should be installed on a flange with engine bell housing and then connect to gearbox housing,  so the rotation is opposite direction.  

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