排气阀门 Wastegate
（重定向自Waste gate）
排气阀门是一种涡轮增压式引擎系统上的从涡轮分离出废气的阀门。废气分离使得涡轮速度降低，也相应的降低了压缩机的转速。排气阀的主要功能是稳定涡轮增压系统的推进压力以保护引擎和涡轮增压器。排气阀门是由排气阀门传动装置控制的，转动装置又由进气歧管的压力控制。
Waste gate
中文百科
英语百科
Wastegate 排气阀门
（重定向自Waste gate）
A wastegate is a valve that diverts exhaust gases away from the turbine wheel in a turbocharged engine system.
Diversion of exhaust gases regulates the turbine speed, which in turn regulates the rotating speed of the compressor. The primary function of the wastegate is to regulate the maximum boost pressure in turbocharger systems, to protect the engine and the turbocharger. One advantage of installing a remote mount wastegate to a free-float (or non-WG) turbo includes allowance for a smaller A/R turbine housing, resulting in less lag time before the turbo begins to spool and create boost.
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