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What is a CCV engine?

Published in Engine Technology 2 mins read

A CCV (Closed Crankcase Ventilation) system is an engine component designed to manage and recycle blowby gases, thereby enhancing vehicle safety, sustainability, and overall performance.

In more detail, the CCV system plays a crucial role in modern internal combustion engines by addressing the following:

  • Blowby Gas Management: During the combustion process, some gases leak past the piston rings and enter the crankcase. These gases, known as blowby gases, contain unburnt fuel, water vapor, and other contaminants.
  • Environmental Protection: Without a proper system, these blowby gases would vent directly into the atmosphere, contributing to air pollution. The CCV system prevents this by routing the gases back into the engine's intake manifold to be re-burned.
  • Engine Performance and Longevity: By preventing the buildup of pressure and harmful contaminants within the crankcase, the CCV system helps maintain optimal engine performance and prolongs its lifespan.
  • Safety: The system prevents the buildup of pressure which can create engine damage.

Essentially, the CCV system is an integral part of an engine's design, contributing to its efficiency, emissions control, and overall reliability.

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