Navistar MaxxForce 15 - Air Management System (AMS); Air Flow

16ENGINESYSTEMS
AirManagementSystem(AMS)
Figure8AirManagementSystem(AMS)
AirFlow
Airowsthroughtheaircleanerassemblyandenters
thelow-pressureturbocharger.Thelow-pressure
turbochargerincreasesthepressure,temperature,
anddensityoftheintakeairbeforeitentersthe
InterstageCooler(ISC).Cooledcompressedairows
fromtheISCintothehigh-pressureturbocharger.The
high-pressureturbochargerincreasestheintakeair
pressureupto345kPa(50psi).Thehotcompressed
airowsintotheChargeAirCooler(CAC)whereit
iscooled,andthendirectedtotheEngineThrottle
Valve(ETV)andmixingductareaofthethrottlevalve
assembly.
IftheEGRcontrolvalveisopen,exhaustgaspasses
throughtheEGRsystemintothemixingductwhereit
ismixedwiththelteredintakeair.Thismixtureows
throughthemixingductintotheintakemanifoldand