[请教]EGR 系统部件的用途和区别.

[lucky_girl]

EGR Sersor:
EGR Vacuum Regulator Solenoid:
EGR Valve:
PCV Valve:

 

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EGR =Exhaust Gas Recirculator

 

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EGR: Exhaust gas recirculation; a procedure in which a portion of exhaust is introduced into the intake of an engine

 

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PCV=Positive Camshaft Ventilation

 

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guess u can find the answers in this website:
http://auto.howstuffworks.com/channel.htm?ch=auto&ct=library