EGR VALVE

详情

The Exhaust gas recirculation (EGR) valve is a way of reducing pollutants in the exhaust gas. Due to high combustion temperatures and an air surplus, direct-injection generates more nitric oxygen (NO) than other diesel methods do.The EGR system reduces the generation of NO considerably by adding exhaust gas to the fresh air delivered to the engine.The exhaust gas recirculation rate, however, is limited due to a rise of HC and CO levels and soot particle emission. An exhaust gas recirculation system works ideally only if it is controlled precisely. Faults on EGR systems are mostly valves that do not open or close. Whereas a valve that does not close gives rise to faults that are noticed by the driver, valves that do not open usually go unnoticed.