Oil and gas separating system embedded in valve chamber cover

Abstract

An oil and gas separating system embedded in a chamber cover is divided into oil and gas passage structures of an upper layer and a lower layer in a shell, wherein the lower layer comprises an oil and gas inlet and a labyrinth for pre-separating the oil and the gas; the upper layer comprises a filter unit mainly used for separating the oil from the gas and an oil and gas outlet; the oil and gas separating system is characterized in that the filter unit comprises a filter plate and a filter that are sequentially arranged; the filter mainly consists of a sponge-like or wool-brush-like article and is arranged on the rear surface of the filter plate; and the rear surface of the filter can be fixed by a baffle through which the oil and the gas can pass. In order to separate the oil from the gas further, a PCV valve is arranged behind the filter unit used for separating the oil and the gas mainly. The filter plate is provided with a group of oil and gas filter holes and a group of striking plates playing a role of collecting returned oil. As the oil and gas pre-separation is carried out through the labyrinth and the main separation is carried out by the filter unit consisting of the filter plate and the filter, the separated machine oil can flow back on the cylinder cover by a PCV valve oil release chamber for reusing, the oil and gas separation efficiency of the oil and gas separating system achieves about 80%, the arrangement space is small, the cost is low relatively and the oil and gas separating system is applicable to current high-end engines.

Description

technical field [0001] The invention relates to an oil-gas separation system, in particular to an oil-gas separation system built in an engine valve chamber cover. Background technique [0002] At present, the cover of the valve chamber of the automobile engine generally uses a labyrinth and a partition to separate oil and gas. The oil and gas mixture is separated from the oil and gas through the labyrinth, and then the separated oil is discharged into the cylinder head through the oil return pipe on the partition, and the gas flows out through the labyrinth. . Chinese patent application number CN200510061317.7 discloses a labyrinth oil-gas separation device. In this design, part of the oil and gas in the oil and gas separation space flows away before it collides with the baffle, resulting in insufficient condensation of oil, insufficient oil and gas separation, and low oil and gas separation efficiency. Contents of the invention [0003] The object of the present invent...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an oil-gas separation system built in the valve chamber cover to solve the problem of insufficient oil-gas separation in the current oil-gas separation system

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