Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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F01M
LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
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13/00
Crankcase ventilating or breathing
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F01M13/04
having means for purifying air before leaving crankcase, e.g. removing oil
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F01M2013/0488
with oil trap in the return conduit to the crankcase
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F01M2013/0494
using check valves
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F01M2013/0494

VENTILATION SYSTEM FOR FORCED-INDUCTION ENGINE
20250305430 · 2025-10-02 ·

A ventilation system for a forced-induction engine is provided. A first passage connects a downstream intake portion to a crankcase to ventilate the crankcase. The second passage connects an upstream intake portion to the crankcase. An oil separator is provided in the second passage. A third passage connects the downstream intake portion to the oil separator. A check valve that restricts a flow of gas from the oil separator toward the downstream intake portion through the third passage.