wastegate

English dictionary entry

Meanings

noun
  1. A valve that allows exhaust gases to bypass an engine's turbocharger, in order to keep from overspeeding the turbocharger rotor or driving the boost pressure high enough to risk engine knocking or detonation.

Pronunciation

/ˈweɪstɡeɪt/

Word forms

wastegate wastegates

Etymology

From waste + gate.

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