Crankcase ventilation device for vehicle
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United States of America Patent
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Jun 12, 2018
Issued Date -
Aug 4, 2016
app pub date -
Sep 3, 2014
filing date -
Sep 10, 2013
priority date (Note) -
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Abstract
The present invention relates to a crankcase ventilation device for a vehicle and, more specifically, to a crankcase ventilation device for a vehicle, which: prevents a back flow of blow-by gas to a new air inflow valve according to a rise in pressure and a rise in a flow rate inside a crankcase; prevents deterioration in the inside of an engine due to unburned fuel contained in the blow-by gas and minute particles of engine oil, generation of sludge, and an engine failure; and minimizes contamination of an intake system by providing a new air inflow control valve having a nozzle and a diaphragm, so as to block a back flow of the blow-by gas to a new air inflow hose due to an excessive rise in pressure inside the crankcase during a process for re-circulating and re-burning the blow-by gas discharged from the crankcase of the vehicle.
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