What is the Function of an Exhaust Gas Valve?

[ChristopherLynn]

The function of an automotive exhaust gas valve is to allow a portion of the exhaust gas to recirculate back into the combustion chamber for reburning. This small amount of exhaust gas helps lower the temperature inside the cylinder during combustion. Since NOX (nitrogen oxides) are byproducts formed under high-temperature and oxygen-rich conditions, this process effectively suppresses NOX generation, thereby reducing NOX emissions in the exhaust. Here is more detailed information about automotive exhaust gas valves: 1. Introduction: The exhaust gas valve, also known as an oil separator or pressure control valve, is installed between the compressor outlet and condenser inlet. It improves heat transfer efficiency in both the condenser and evaporator through separation. 2. Working Principle: When high-pressure gas from the compressor enters the exhaust gas valve, it flows through guide vanes in a spiral motion. Through centrifugal force and gravity, the lubricating oil is separated from the working gas and flows down along the inner wall of the cylinder.