Home >  Term: crankcase ventilation
crankcase ventilation

The emission of unburned fuel to the atmosphere from the crankcase of an internal combustion engine. Formerly a large source of hydrocarbons to the atmosphere, the rate of escape has been greatly reduced by recycling of the escaped gases to the cylinders by means of a device called the positive crankcase ventilation (PCV) valve. Crankcase ventilation contributes around 5% of unburned hydrocarbon emissions to the atmosphere.

0 0
  • ส่วนหนึ่งของคำพูด: noun
  • อุตสาหกรรม/ขอบเขต: Weather
  • Category: Meteorology
  • Company: AMS

ผู้สร้าง

  • Kevin Bowles
  •  (Diamond) 9014 points
  • 50% positive feedback
© 2024 CSOFT International, Ltd.