What is the function of the turbocharger intake bypass valve?

[StSpencer]

The function of the turbocharger intake bypass valve is to protect the turbo from excessive pressure. Ordinary turbocharged engines are equipped with mechanical bypass valves, while some high-end turbocharged engines feature electronic bypass valves, which offer more precise control and faster response. A turbocharger is essentially an air compressor that increases air intake by compressing air. It utilizes the inertial force of exhaust gases from the engine to drive the turbine in the turbine housing, which in turn drives the coaxial impeller. The impeller then compresses the air delivered through the air filter pipe, forcing it into the cylinders under increased pressure.