Wastegate ( yes one word)
By spinning at a relatively high speed the compressor turbine draws in a large volume of air and forces it into the engine. Since a turbo can spin to RPMs far beyond what is needed, or of what it is safely capable of, the speed must be controlled. A waste gate is the most common mechanical speed control system, and is often further augmented by an electronic boost controller . The main function of a waste gate is to allow some of the exhaust to bypass the turbine when the set intake pressure is achieved. Most passenger car waste gates are integral to the turbocharger
By spinning at a relatively high speed the compressor turbine draws in a large volume of air and forces it into the engine. Since a turbo can spin to RPMs far beyond what is needed, or of what it is safely capable of, the speed must be controlled. A waste gate is the most common mechanical speed control system, and is often further augmented by an electronic boost controller . The main function of a waste gate is to allow some of the exhaust to bypass the turbine when the set intake pressure is achieved. Most passenger car waste gates are integral to the turbocharger
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