Cylinder cover oil-gas separation device

Abstract

The invention relates to the field of automobile engines, and in particular relates to a cylinder cover oil-gas separation device. The cylinder cover oil-gas separation device comprises a baffle type oil-gas separation device which is arranged in a cylinder cover (1) and is characterized by comprising a pipeline type oil-gas separation device arranged outside the cylinder cover (1), the pipeline type oil-gas separation device is a pipeline (2) provided with a bend inside, and the pipeline (2) is also communicated with the baffle type oil-gas separation device. The oil-gas separation device disclosed by the invention has the advantages of high oil-gas separation efficiency, long service life, low cost and simple structure.

Description

technical field [0001] The invention relates to the field of automobile engines, in particular to a cylinder head oil-gas separation device. Background technique [0002] With the increasingly stringent emission requirements of automobile engines, the current crankcase ventilation system must be a closed cycle. Blow-by gas and engine oil oil and gas must be circulated to the engine intake system and burned in the cylinder. This has a great impact on the oil-gas separation efficiency. High requirements, try to separate the oil droplets, otherwise the engine will burn oil, which will affect the emission performance and the reliability of the engine. [0003] In the prior art, two structures are mainly used for gas-oil separation. One is a baffle-type oil-gas separation structure, which allows oil and gas to pass through the labyrinthine channels in the engine cylinder head to achieve the purpose of separating oil and gas. This structure is not efficient in oil-gas separation....

AI Technical Summary

Problems solved by technology

[0002] With the increasingly stringent emission requirements of automobile engines, the current crankcase ventilation system must be a closed cycle. Blow-by gas and engine oil oil and gas must be circulated to the engine intake system and burned in the cylinder. This has a great impact on the oil-gas separation efficiency. High requirements, try to separate the oil droplets, otherwise the engine will burn oil, which will affect the emission performance and the reliability of the engine

[0003] In the prior art, two structures are mainly used for gas-oil separation. One is a baffle-type oil-gas separation structure, which allows oil and gas to pass through the labyrinthine channels in the engine cylinder head to achieve the purpose of separating oil and gas. This structure is not efficient in oil-gas separation. The other is to add a first-stage filter element structure separator to the baffle type oil-gas separation structure. Although the separation efficiency is high, the filter element needs to be replaced regularly, so the service life is low, and the cost is high and the structure is complicated.

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