An oil-gas separation module based on atmospheric pressure self-adjusting flow section

Abstract

The invention relates to an oil-gas separation module based on barometric pressure self-adjusting flow area. The oil-gas separation module based on barometric pressure self-adjusting flow area comprises a pressure driving module, an execution module and a separation module, wherein the pressure driving module is connected with the execution module, and the execution module is connected with the separation module; the pressure driving module comprises an upper shell, a valve cover, a sealing plate, a pressure adjusting diaphragm, a spring supporting plate and a spring; and the execution modulecomprises a connecting rod, a double-U-shaped rubber diaphragm, a pressing plate and a dividing plate. A crankcase pressure adjusting module and a fine filtering module are integrated together, driving force is formed through the difference between crankcase pressure and atmospheric pressure, and the flow area on a fine separation plate is adjusted. The flow velocity of blow-by gas of a crankcasepassing through the oil-gas separation module is optimal under different blow-by gas amounts of an engine, so that high separation efficiency of the engine under working conditions is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of engines, and in particular relates to an oil-gas separation module based on atmospheric pressure self-adjusting flow section. Background technique [0002] When the engine is working, part of the exhaust gas leaks from the combustion chamber piston ring into the engine crankcase, and these exhaust gases mix with the engine oil particles inside the engine to form crankcase blow-by gas. If the blow-by gas is directly discharged into the atmosphere, it will cause air pollution; if it directly enters the combustion chamber, due to the high oil content in the blow-by gas, it will cause serious carbon deposits in the combustion chamber and reduce the power performance of the engine. [0003] In order to prevent crankcase blow-by gas from being directly discharged into the atmosphere, causing air pollution and reducing engine power performance, the engine will be equipped with an oil-air separator to separate th...

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Problems solved by technology

[0004] In the oil-gas separator, the oil-gas separation module is used to separate the engine oil. The conventional oil-gas separator block is a separation structure with a constant cross section. It can only ensure a certain amount of blow-by gas passing through it at a high flow rate to achieve a high separation. effect, so that the separation efficiency of the engine is not optimal under other blow-by gas quantities

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