Gas and oil separating plant for internal combustion engine

Abstract

The invention relates to a gas and oil separating plant for an internal combustion engine, which comprises a separating plant shell, an end cover used for sealing the separating plant shell and a filter screen arranged in the separating plant shell; the separating plant shell is provided with an air inlet in the middle part, and the end cover is provided with an air outlet; the separating plant shell and the end cover form a closed cavity which is divided into a first separating chamber arranged at the lower part and a separating chamber arranged at the upper part by a baffle plate which is arranged in the middle of the separating plant shell; the separating chamber arranged at the upper part is divided into two ring-shaped separating chambers by the filter screen, the separating chamber at the outer side is the second separating chamber, and the separating chamber at the inner side is the third separating chamber; the air inlet is tangentially arranged on the side wall of the first separating chamber; the air outlet is arranged on the top of the third separating chamber; a relief valve which can be opened automatically is arranged between the first separating chamber and the third separating chamber; and a pressure control valve which is used for regulating the air pressure in the third separating chamber is arranged at the air outlet which is arranged on the top of the third separating chamber.

Description

technical field [0001] The invention relates to an oil-gas separation device for an internal combustion engine, in particular to a three-stage oil-gas separation device with cyclone separation. Background technique [0002] When the separation effect of the oil-air mixture discharged from the crankcase of the internal combustion engine is not good, the recovery and combustion of the mixed gas will lead to rapid carbon deposition in the internal combustion engine, which will reduce the working performance of the internal combustion engine, accelerate the wear and tear of the internal combustion engine and engine oil consumption, and discharge more harmful gas pollution at the same time surroundings. Ordinary oil-gas separation devices are mostly single-stage, and the separation efficiency is not high. Multi-stage ones are often bulky, complex in structure, and high in cost, so it is difficult to meet the needs of higher emission standards in the future. Contents of the inve...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a separation device that can fully and efficiently separate the oil-gas mixture discharged from the crankcase of an internal combustion engine, so as to solve the problems of the current oil-gas separation device with complex structure, large volume and insufficient oil-gas separation.

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