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Home >> Infiniti >> 2018 >> QX30 Pure >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (Introduction) >> System Description >> Structure And Operation >> Crankcase Ventilation System >> System Description
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System Description

Description 

The crankcase ventilation system allows the discharging of excess pressure and excessive gas sent from the crankcase, feeding them back to the engine through the induction system, and combusting them under any engine operating condition.

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SYMBOL

Full-load operation vent line heater element

SYMBOL

Fuel tank ventilation connector

SYMBOL

Vent valve

SYMBOL

Oil separator

SYMBOL

Partial load operation crankcase ventilation valve

A

Partial load bleed line

B

Vent line for oil separator

C

Purge line

D

Wide open throttle bleed line

E

Engine ventilation line

Crankcase Ventilation Description of Function 

The crankcase ventilation has functions as follows: