An EGR valve, or exhaust fuel recirculation valve, is an emissions management system that reduces nitrogen oxide (NOx) emissions from diesel engines. The EGR valve works by redirecting a portion of the exhaust fuel again into the engine’s consumption manifold. This reduces the combustion temperature, which in flip reduces NOx formation.
EGR valves are an essential a part of emissions management programs, and so they might help to enhance gas financial system and scale back air air pollution. Nevertheless, EGR valves also can change into clogged or defective, which might result in elevated emissions and poor engine efficiency.