Labyrinth type oil-gas separating structure in cover of engine spiracular atrium

Abstract

The invention relates to a labyrinth gas-oil separating structure in a valve cover of an engine and is characterized in that: a gas-oil separating chamber, which is jointly composed by an oil baffle base plate and the valve cover and is provided with a gas mixture inlet and an outlet of a ventilating pipe, is internally provided with a labyrinth structure which can prolong the detention time of the gas mixture in the gas-oil separating chamber and enlarge the contact area between the gas mixture and the inner wall of the separating chamber. The labyrinth gas-oil separating structure aims at simplifying the arrangement of a ventilating system and optimizing and modifying the structures of the valve cover and the oil baffle plate, thus forming an effective oil separating labyrinth and achieving the effect of independent arrangement of a gas-oil separating device; and the whole ventilating system of the engine becomes simpler and more effective.

Description

technical field [0001] The invention relates to an automobile engine ventilation system, more specifically to the arrangement of an oil-vapor separation structure in the automobile engine ventilation system. Background technique [0002] When the automobile engine is running, the high-pressure combustible mixture and burned gas in the combustion chamber will more or less enter the crankcase through the gap between the piston assembly and the cylinder, causing blow-by. The components of blow-by gas are unburned hydrocarbons, water vapor and exhaust gas. This will dilute the engine oil, reduce the performance of the engine oil, accelerate the oxidation, deterioration and increase consumption of the engine oil; at the same time, the water vapor will condense in the engine oil, which will form sludge and block the oil circuit; the acidic gas mixed into the lubrication system will lead to damage to the engine parts Corrosion and accelerated wear; Blow-by gas will also make the p...

AI Technical Summary

Problems solved by technology

This will dilute the engine oil, reduce the performance of the engine oil, accelerate the oxidation, deterioration and increase consumption of the engine oil; at the same time, the water vapor will condense in the engine oil, which will form sludge and block the oil circuit; the acidic gas mixed into the lubrication system will cause damage to the engine parts Corrosion and accelerated wear; blow-by gas will also make the pressure of the crankcase too high and damage the seal of the crankcase, causing oil leakage and loss. For some, it is necessary to install an oil-gas separator in the engine ventilation system

[0003] At present, the oil-air separator in the engine ventilation system is usually set independently and is self-contained, which is independent of the engine body. The general-purpose oil-air separator is filter screen and cyclone type. Connect the pipes, which increases the complexity of the arrangement of the peripheral accessories of the engine

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