Does EGR shorten engine life?
Only time will tell. Subject: Re: Experts: how can EGR not shorten the life of an engine? It does shorten the life EGR systems took a million mile semi truck engine down to a 600,000 mile engine.
Should I turn off EGR valve?
Well to be honest I would never recommend disabling an EGR valve. The valve is actually not just for NOx reduction it also maintains a maximum cylinder temperature. The EGR is cycled on and off at running ranges (and decel) to prevent cylinder temperatures from spiking to high.
What are the functions of the EGR components?
The following subsections detail the functions of specific EGR components. The Electronic Control Unit (ECU) provides overall engine management, self-diagnostic checks, and monitors other system components. System diagnostic checks are made at ignition-on and continue throughout all engine-operating modes.
How does the charge air mixer work in an EGR?
EGR Cooler The charge air mixer, see Figure “Charge Air Mixer” , combines exhaust gases into the fresh air supply flowing from the charge air cooler. Once the air has passed the charge air mixer, the intake manifold diffuses the EGR exhaust gases evenly to each cylinder.
How does the EGR cool the exhaust gases?
Exhaust gas cooling is accomplished by the flow of exhaust gases through the EGR cooler tubes. The EGR cooler core then transfers the heat removed from the exhaust gases to the engine coolant. The cooled exhaust gases are then mixed with incoming air from the charge air cooler before being sent to the intake manifold.
Where are the Venturi ports on a Detroit Diesel?
The venturi tube with a port at each end is located in the EGR delivery pipe which is connected to the EGR cooler outlet. The Venturi tube ports are connected to the Delta P Sensor to monitor the pressure differential across the venturi as EGR exhaust gases flow through the EGR delivery pipe to the charge air mixer.