Case CX350C - Engine - Static description

Engine-Engineandcrankcase
Engine-Staticdescription
Engineelectroniccontrol
TheECMcontrolstherangefrominjectiontointakeandexhaust,includingthefuelinjectionquantity,injectiontiming,
suctionairrestriction,EGRandidlespeed.
Cylinderblock
Thecylinderblockismadeofcastiron,withequalcenterdistanceforeachboreandhashighrigidityandthecenter
ofthecrankshaftmatchesthecenteroftheblock.
Thebearingcapshavealadderframestructureandaretightenedtoitsplasticregionbytheturn-of-nutmethod.
Cylinderliner
Thecylinderlinerisselectedtomatchtheboreinnerdiameterofthecylinderblock.TheIDnumberisstampedon
theleftsideofthecylinder.
Piston
Thepistonsaremadeofanaluminumalloyanduseautothermaticpistonswithcaststruts.Thecombustionchamber
istheroundre-entranttype.
Cylinderhead
Thecylinderheadsaremadeofcastironandeachcylinderhas4valves.
Thecylinderheadboltsusetheangletighteningmethodtofurtherimprovereliabilityanddurability.
Crankshaft
TUFFTRIDEsteelisusedandthegradeofeachjournaldiameterisstampedontheNo.1balanceweight.
EGRsystem
TheEGRsystemiscontrolledbytheenginecontrolmodule(ECM)basedonthecoolanttemperature,enginespeed
orengineload,andotherdata.Itpuriestheemissiongasbyrecirculatingit.
ThemaincomponentsaretheEGRvalve,EGRcooler,andsensors.
Connectingrodcapbolt
Theconnectingrodcapboltsusetheangletighteningmethodtofurtherimprovereliabilityanddurability.
Commonrailtypeelectroniccontrolinjectionsystem
Thecommonrailtypeelectroniccontrolinjectionsystemisconsistofthefuelsupplypump,whichsuppliesfuelatthe
targetpressurevaluesetforhighpressurefuel,thecommonrail,whichmeasuresthehigh-pressurefuel,andthefuel
injector,whichturnsthefuelintoanemistandinjectit.
EachiscontrolledbytheECMbasedonsignals.Theinjectiontimingandinjectionamountarecontrolledaccording
totheoperatingconditions.
Fuelinjector
Thefuelinjectorsuse7-holenozzles.Thefuelinjectionquantityandinjectiontimingareadjustedbyopeningand
closingtheelectromagneticvalveattheinjectorheadportion.
TheECMcorrectsforvarianceinfuelinjectionquantitybetweenthefuelinjectorsaccordingtotheIDcodedatain
memory.
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