A device in internal combustion engines that redirect a portion of exhaust gases into the intake manifold to lower NOx emissions by reducing combustion temperature, thereby promoting cleaner engine operation and environmental compliance.

• Advantages: Significantly reduce NOx emissions, improve engine efficiency and performance by optimizing combustion temperature, help prevent knocking and overheating, and contribute to better fuel economy and compliance with environmental standards.

• Applications: Used in automotive, industrial, marine, and other internal combustion engines to control emissions, meet regulatory standards, and optimize performance.