What is a bypass valve in a turbocharged engine, and how does it function?
I’ve heard about bypass valves in turbocharged engines. What is their purpose, and how do they function within the turbo system?
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MustangSally Selected answer as best July 28, 2024
What is a bypass valve in a turbocharged engine, and how does it function?
A bypass valve, also known as a blow-off valve or diverter valve, releases excess boost pressure from the intake tract in a turbocharged engine. When the throttle is closed rapidly, such as during gear shifts, the turbo continues to compress air, leading to a buildup of pressure. The bypass valve vents this excess pressure to prevent compressor surge, which can damage the turbocharger and reduce performance. This valve helps maintain the turbo’s efficiency and prolongs its lifespan.
MustangSally Selected answer as best July 28, 2024
