CN220929509U

CN220929509U - Oil return structure of oil-gas separator

Info

Publication number: CN220929509U
Application number: CN202322966842.XU
Authority: CN
Inventors: 任丽娟; 杨晓帆; 宋毓恒
Original assignee: Shanxi Yunnei Power Co ltd
Current assignee: Shanxi Yunnei Power Co ltd
Priority date: 2023-11-03
Filing date: 2023-11-03
Publication date: 2024-05-10
Anticipated expiration: 2033-11-03

Abstract

The utility model discloses an oil return structure of an oil-gas separator, which comprises a shell, wherein a gear chamber is arranged at the inner upper part of the shell, an oil bottom chamber is arranged at the inner lower part of the shell, an oil return pipeline is communicated between the gear chamber and the oil bottom chamber, an opening I is arranged at the top end of the gear chamber, the section of the oil return pipeline is U-shaped, and two ends of the oil return pipeline are respectively provided with an opening II and an opening III at the gear chamber and the oil bottom chamber. Compared with the prior art, the utility model has the advantages that: the oil return structure of the oil-gas separator is simple in design and reduces the cost of parts.

Description

Oil return structure of oil-gas separator

Technical Field

The utility model relates to the field of structural design of automobile product development engines, in particular to an oil return structure of an oil-gas separator.

Background

The main function of the oil-gas separator is to separate oil gas in the crankcase of the engine, so that the separated oil gas returns to the oil pan.

Because the pressure in the crankcase is larger than the pressure in the oil-gas separator, in order to ensure normal oil return, the oil-gas separator oil return pipe is designed to directly return to the oil below the oil level of the bottom shell or a one-way valve is added on the oil return pipeline, so that the separation efficiency of the oil-gas separator is prevented from being influenced due to unsmooth oil return, and great inconvenience is brought to design and arrangement.

Disclosure of utility model

The utility model aims to overcome the technical defects, and provides the oil return structure of the oil-gas separator, which is simple in design and reduces the cost of parts.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the oil return structure of the oil-gas separator comprises a shell, wherein a gear chamber is arranged at the inner upper part of the shell, an oil bottom chamber is arranged at the inner lower part of the shell, an oil return pipeline is communicated between the gear chamber and the oil bottom chamber, an opening I is arranged at the top end of the gear chamber, the section of the oil return pipeline is U-shaped, and an opening II and an opening III are respectively arranged at two ends of the oil return pipeline in the gear chamber and the oil bottom chamber.

As an improvement, the second opening is higher than the third opening.

Compared with the prior art, the utility model has the advantages that: by utilizing the hydrostatic principle and adopting the principle of differential pressure and liquid sealing by adopting a U-shaped pipe structure, the normal oil return of the oil-gas separator is ensured, and the separation efficiency of the oil-gas separator is ensured; no additional design of oil return pipe and one-way valve of oil-gas separator is needed, and the cost of the whole machine is reduced

Drawings

Fig. 1 is a schematic structural view of an oil return structure of an oil-gas separator.

Fig. 2 is a schematic structural view of a cross-sectional view of an oil return structure of the oil-gas separator.

As shown in the figure: 1. a housing; 2. a gear chamber; 3. an oil bottom chamber; 4. an opening I; 5. an opening II; 6. an opening III; 7. and an oil return pipeline.

Detailed Description

Specific embodiments of the present utility model will be further described below with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals.

It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly connected to one of ordinary skill in the art to which this utility model belongs, and the knowledge of terms used in the description of this utility model herein for the purpose of describing particular embodiments is not intended to limit the utility model, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In order to make the contents of the present utility model more clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-2, an oil return structure of an oil-gas separator includes a casing 1, a gear chamber 2 is disposed at an upper portion in the casing 1, an oil bottom chamber 3 is disposed at a lower portion in the casing 1, an oil return pipeline 7 is disposed between the gear chamber 2 and the oil bottom chamber 3, an opening one 4 is disposed at a top end of the gear chamber 2, a cross section of the oil return pipeline 7 is U-shaped, and two ends of the oil return pipeline 7 are respectively provided with an opening two 5 and an opening three 6 in the gear chamber 2 and the oil bottom chamber 3.

The engine oil separated by the oil-gas separator enters the gear chamber 2 from the first opening 4 on the gear chamber 2, and then enters the oil return pipeline 7 between the second opening 5 and the third opening 6 through the second opening 5 on the gear chamber 2.

The engine oil in the opening III 6 can be directly returned to the oil pan and connected with the crankcase. Because the height of the second opening 5 is larger than that of the third opening 6, the U-shaped groove is continuously filled with the organic oil, and therefore crankcase gas from the third opening 6 is sealed by the oil in the U-shaped groove to prevent the crankcase gas from reversely flowing into the oil-gas separator. Meanwhile, due to the fact that the height difference exists between the third opening 6 and the second opening 5, according to the hydrostatic principle, the pressure at the third opening 6 is larger than that at the second opening 5, and engine oil can smoothly flow back to the crankcase. When the engine oil stops flowing out of the oil-gas separator, the liquid level in the U-shaped groove can be kept consistent so as to achieve pressure balance, and meanwhile, the engine oil sealing function is also achieved.

What is not described in detail in this specification is prior art known to those skilled in the art.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional modes in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that details are not described in detail in the specification, and the utility model belongs to the prior art known to the person skilled in the art.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims

1. The utility model provides an oil return structure of oil and gas separator, includes casing (1), its characterized in that: the oil return device is characterized in that a gear chamber (2) is arranged on the upper portion in the shell (1), an oil bottom chamber (3) is arranged on the lower portion in the shell (1), an oil return pipeline (7) is communicated between the gear chamber (2) and the oil bottom chamber (3), an opening I (4) is arranged on the top end of the gear chamber (2), the section of the oil return pipeline (7) is U-shaped, and two ends of the oil return pipeline (7) are respectively provided with an opening II (5) and an opening III (6) in the gear chamber (2) and the oil bottom chamber (3).

2. The oil return structure of an oil-gas separator according to claim 1, wherein: the second opening (5) is higher than the third opening (6).