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第二章机舱日常事务
1.Pleaseintroduceonetypeofthemainengine.
(Itislargesize,slowspeed,two-stroke,crossheadtypewithturbochargingsystem.)
2.Pleaseintroducefuelinjectionprocessofelectronicallycontrolledmainengine.
(Itcanchangetheinjectiontimingandinjectionpressureaccordingtotheload.)
3.Pleaseintroducedualfueltechnologyofmainengine.
(Thiskindcanburnbothnaturalgasanddieseloil.)
4.Whyisthetwo-strokeenginewidelyusedonboardship?
(Itislonglife,lowcost(成本)andhighreliability.)
5.Whyistheairexchangingqualityoffour-strokeenginemorethanthatoftwo-strokeengine?
(Thefour-strokeenginehasanenoughoverlapbetweeninletvalveopeningandexhaust
valveclosing.)
6.Pleaseintroducethreemovingpartsofmarinedieselengine.
(Theyarepiston,connectingrodandcrankshaft.)
7.whatisthesequenceofthefourstrokes?
(Theyaresuction,compression,expansionandexhaust.)
8.Pleaseintroducefourfixedpartsofmarinedieselengine.
(Theyarebedplate,frame,cylinder,andscavengingairbox.)
9.whatiscalledaworkingcycle?
(Itisoperationbetweenthetwoinjections)
10.Whatisthefoundationofdieselengine?
(Itisbedplate.)
11.Whatarethefunctionandfeatureofthetierods?
(Itistoholdthebedplate,frameandcylinderblocktogether.Thefeatureislongandgood
tensioningstrength.)
▲12.Whatisthefunctionofthegovernor?
(Itistocontroltheenginespeedbyadjustingthefuelquantity.)
▲13.Whatisthefeatureofthegovernor?
(Itcanautomaticallymaintaintheconstantspeedoftheengineandregulatespeedchange.)
14.Whatisusedforconnectingthepistonrodandconnectingrod?
(ItisCrosshead.)
15.Whatisusedforsealingbetweenthecrankcaseandscavengingairbox?
(ItisPistonrodstuffingbox.)
16.
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