What is EGR system

Question

What is EGR system

Accepted Answer

EGR system stands for Exhaust Gas Recirculation system. It is used in internal combustion engines to reduce nitrogen oxide emissions.

EGR system recirculates a portion of exhaust gases back into the engine's intake manifold.
This reduces the combustion temperature and lowers the production of nitrogen oxides.
The recirculated exhaust gases also help in reducing engine knocking and improving fuel efficiency.
EGR systems can be found in both gasoline and diesel engines.
Example: In a diesel engine, the EGR system can reduce nitrogen oxide emissions by up to 50%.

Accepted Answer

Exhaust gas recirculation

In internal combustion engines, exhaust gas recirculation is a nitrogen oxide emissions reduction technique used in petrol/gasoline, diesel engines and some hydrogen engines. EGR works by recirculating a portion of an engine's exhaust gas back to the engine cylinders.

What is EGR system

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