Active oil-gas separator

Abstract

The invention relates to an active oil-gas separator which is characterized in that the upper end of a base assembly is fixedly connected with an upper shell assembly, a sealing ring is arranged at the joint of the base assembly and the upper shell assembly, an inner cavity of the base assembly is an oil return cavity, a gas outlet cavity assembly is assembled at the lower end of an inner cavity of the upper shell assembly, a driving shaft assembly is vertically arranged in a cavity formed by the base assembly and the upper shell assembly, an auxiliary separating impeller is arranged on the portion of the driving shaft assembly positioned in the base assembly, an engine oil spraying hole is formed below the driving shaft assembly, a lamination lower body, a lamination and a lamination upper body sleeve the portion of the driving shaft assembly positioned in the upper shell assembly from bottom to top, the lamination lower body is limited by a limiting spring, the lamination upper body is limited by a clamping spring, a pressing plate is arranged in a side cover above the upper shell assembly, a diaphragm is arranged at the pressing plate, the maximum gap is kept between the diaphragm and a gas outlet, and the diaphragm is supported by a pressure adjusting valve spring. The active oil-gas separator can solve the problems that the overall engine performance and reliability of medium-duty and heavy duty diesel engines are reduced after a closed crankcase ventilation system is used.

Description

technical field [0001] The invention relates to an active oil-gas separator, which belongs to the oil-gas separation technology of the crankcase ventilation system of a diesel engine and belongs to the technical field of automobiles. Background technique [0002] The crankcase ventilation system is an important part of the engine. With the increasingly stringent emission regulations, the crankcase ventilation system has gradually become the content of the regulations. For example, GB11340 issued in 2005 clearly requires that gasoline engines must adopt a closed crankcase ventilation system. Although there is no mandatory requirement for diesel engines at present, the latest Euro VI emission regulations clearly point out that the exhaust gas discharged from the crankcase ventilation system is directly introduced into the exhaust gas for unified testing. The implementation of this regulation will undoubtedly have a huge impetus to the technologies related to the crankcase ven...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an active oil-gas separator, which can solve the problem that the performance and reliability of the medium and heavy-duty diesel engines are reduced after the closed crankcase ventilation system is adopted.

[0005] The positive effect of the present invention is that it solves the problem that the oil-gas separation product in the market is low in oil-gas separation efficiency and cannot satisfy the closed crankcase ventilation system; the structure is simple, and it is convenient for the whole machine to be arranged; no maintenance is required for life, and the user's use cost is reduced; reliability High, suitable for medium and heavy-duty diesel engines that are required to meet Euro VI emission regulations

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