An oil-gas separator on a motorcycle engine case

Abstract

The invention provides an oil-gas separator on a motorcycle engine casing, which belongs to the technical field of motorcycles. The utility model solves the technical problems such as the existing motorcycle needing to fix an independent oil-gas separator on the casing to realize the oil-gas separation, resulting in complex structure and the like. The engine case includes a vertically arranged case cover, and the oil-gas separator is arranged on the inner side of the case cover. The oil-gas separator includes an end cover and a coaming plate, and the coaming plate and the case cover are fixed to form an oil-gas separation chamber; the inside of the coaming plate is fixed with a first The separation plate and the second separation plate, the first separation plate and the second separation plate separate the oil-gas separation chamber to form the first separation chamber, the second separation chamber and the third separation chamber arranged in sequence, and the end cover is provided with Steam inlet hole, when the end cover is fixed to the other end of the coaming plate, the steam inlet hole of the end cover communicates with the first separation chamber, two oil return ports are opened on the lower part of the coaming plate, and two oil return ports are opened on the upper part of the coaming plate Vent. The invention has the advantages of good oil-gas separation effect and simple structure.

Description

technical field [0001] The invention belongs to the technical field of motorcycles, and relates to an oil-gas separator on a motorcycle engine case. Background technique [0002] The oil-gas separator of existing motorcycle engine generally adopts labyrinth type oil-gas separator to realize, and labyrinth type oil-gas separator is connected in the cylinder head cover of motorcycle engine as independent parts. [0003] Usually, the oil-gas separator arranged on the cylinder head cover, because the motorcycle engine cylinder head cover needs to be disassembled or replaced related engine spark plugs and other parts, or the vibration of the cylinder head will easily lead to the decrease of the labyrinth seal. In addition, the cylinder head has a high thermal load, which greatly increases the probability of rubber or plastic sealing failure, which leads to the failure of the entire labyrinth. Therefore, under normal circumstances, the cost and material selection requirements of ...

AI Technical Summary

Problems solved by technology

[0003] Under normal circumstances, the oil-gas separator arranged on the cylinder head cover needs to be disassembled or replaced related engine spark plugs and other parts of the motorcycle engine cylinder head cover, or the vibration of the cylinder head can easily lead to a decrease in the labyrinth seal.

In addition, the cylinder head has a high thermal load, which greatly increases the probability of rubber or plastic sealing failure, which leads to the failure of the entire labyrinth.

Therefore, under normal circumstances, the cost and material selection requirements of the labyrinth oil-gas separator arranged on the cylinder head cover are relatively high, resulting in an increase in production costs, and maintenance is required after a period of use, which also increases the use cost.

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