Exhaust Gas Recirculation for Diesel Engine - Dieselclass.com
Exhaust Gas Recirculation for Diesel Engine - Dieselclass.com
Exhaust Gas Recirculation for Diesel Engine - Dieselclass.com
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<strong>Exhaust</strong> <strong>Gas</strong> <strong>Recirculation</strong> <strong>for</strong> <strong>Diesel</strong> <strong>Engine</strong>Name: _______________________________Date: ________________________________Trace the flow of EGR gas through an EGR system of a diesel engine.Identify the following <strong>com</strong>ponents and explain their purpose on any EGR equippedengine.1. Variable geometry turbocharger:Function:a. ___________________________________b. ___________________________________c. ___________________________________Identify an electric, and air actuator mechanism.Electric OEM & Model ____________Air OEM & Model ________________2. VGT speed SensorFunction:__________________________________________________________________3. Barometric Pressure SensorFunction:__________________________________________________________________3. EGR Control valveFunction:__________________________________________________________________
4. <strong>Exhaust</strong> back pressure sensorFunction:__________________________________________________________________5. <strong>Exhaust</strong> Pressure differential sensor (Delta PFE)Function:__________________________________________________________________6. Mass Air Flow SensorFunction:__________________________________________________________________Which engine uses the above devices? ________________________________________7. EGR Tube venturiFunction:__________________________________________________________________8. EGR CoolerFunction:__________________________________________________________________9. <strong>Exhaust</strong> gas temperature sensorFunction:__________________________________________________________________
10. Variable pressure output devicesFunction:_________________________________________________________________________Which engine uses the above devices? __________________________________________11. EGR position sensorFunction:____________________________________________________________________________Intake throttleFunction: ____________________________________________________________________12. Per<strong>for</strong>m a VGT/VNT actuator test.What should happen to the turbocharger speed when the actuator closes? _________________Opens? ____________13. What happens to turbine speed when the EGR valve is opened? _______________________
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