Wiktionary英語版
出典：Wiktionary
overboost
動詞
overboost (三人称単数 現在形 overboosts, 現在分詞 overboosting, 過去形および過去分詞形 overboosted)
- To increase an engine's intake manifold pressure to higher levels than it is designed for.
- 2004, Jeff Hartman, How to Tune and Modify Engine Management Systems, →ISBN, page 86:
- It makes sense to provide plausible engine fuel and ignition mapping to the limits of the factory fuel injectors, which would typically be sized sufficiently large to provide optimal fuel to the airflow/boost limits of the stock turpocharger even though the wastegate should normally prevent the engine from boosting so high. This is because the engine can overboost if the wastegate manifold-pressure reference line is cut (melted, crushed, disconnected, かつ so on), and a "safe" calibration -- even in forbidden overboost territory -- is one more countermeasure designed to help avoid engine damage from lean mixtures if the engine does overboost if fuel cut strategies fail.
名詞
overboost (countable かつ uncountable, 複数形 overboosts)
- (uncountable) The process of overboosting.
- 2004, Jeff Hartman, How to Tune and Modify Engine Management Systems, →ISBN, page 86:
- It makes sense to provide plausible engine fuel and ignition mapping to the limits of the factory fuel injectors, which would typically be sized sufficiently large to provide optimal fuel to the airflow/boost limits of the stock turpocharger even though the wastegate should normally prevent the engine from boosting so high. This is because the engine can overboost if the wastegate manifold-pressure reference line is cut (melted, crushed, disconnected, かつ so on), and a "safe" calibration -- even in forbidden overboost territory -- is one more countermeasure designed to help avoid engine damage from lean mixtures if the engine does overboost if fuel cut strategies fail.
- 1970, United States Department of the Army, General Aircraft Maintenance Manual, page 7:
- A manifold pressure overboost control is usually employed to reduce the possibility of overboost occurring. However, when overboost occurs, combustion temperatures rise, and detonation or preignition may result and cause serious structural damage to the engine.
- (countable) An instance of overboosting.
- 2013, Robert Foskett, Alfa Romeo 916 GTV and Spider: The Complete Story, →ISBN:
- By delaying opening of the wastegate, the ECU could generate an overboost at full throttle, increasing boost pressure to 1.1bar, for a peak power delivery of 230bhp in short bursts of up to 30sec at a time.
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