CN215595688U - Oil-gas separation device and engine with same - Google Patents
Oil-gas separation device and engine with same Download PDFInfo
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- CN215595688U CN215595688U CN202120545369.6U CN202120545369U CN215595688U CN 215595688 U CN215595688 U CN 215595688U CN 202120545369 U CN202120545369 U CN 202120545369U CN 215595688 U CN215595688 U CN 215595688U
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Abstract
The utility model belongs to the technical field of engines, and particularly relates to an oil-gas separation device and an engine with the same. The oil-gas separation device comprises a shell, an end cover and a secondary filter element, wherein a filter cavity is arranged in the shell, when the oil-gas separation device is in a use state, the central axis of the filter cavity is arranged at an acute angle with the vertical direction, a primary filter structure which is integrally formed with the shell is arranged at the lower end of the filter cavity, the end cover is connected with the high end of the shell, and the secondary filter element is connected with the end cover and is positioned at the high end of the filter cavity. By using the oil-gas separation device in the technical scheme, the oil gas entering the oil-gas separation device is filtered by adopting a mode of combining the primary filtering structure and the secondary filtering element, so that the filtering effect and the separation efficiency of the oil-gas separation device can be effectively improved.
Description
Technical Field
The utility model belongs to the technical field of engines, and particularly relates to an oil-gas separation device and an engine with the same.
Background
The oil-gas separation device is a main component in a crankcase ventilation system and is used for separating engine oil in oil-gas discharged by a crankcase.
The common structural style of present oil-gas separation device is mostly the baffle formula maze, sets up one or more oil return passage in oil-gas separation device rear end to realize filtering the purpose of machine oil in the oil gas.
But the structural design of oil-gas separation in the oil-gas separation device of above current structural style is complicated and the overall arrangement is reasonable inadequately, and oil-gas separation device's separation efficiency is also lower simultaneously.
SUMMERY OF THE UTILITY MODEL
The utility model aims to at least solve the problem of low separation efficiency of an oil-gas separation device. The purpose is realized by the following technical scheme:
a first aspect of the present invention provides an oil-gas separation device, comprising:
the oil-gas separation device comprises a shell, wherein a filter cavity is arranged in the shell, when the oil-gas separation device is in a use state, the central axis of the filter cavity is arranged at an acute angle with the vertical direction, and a primary filter structure integrally formed with the shell is arranged at the lower end of the filter cavity;
the end cover is connected with the high end of the shell;
and the secondary filter element is connected with the end cover and is positioned at the high end of the filter cavity.
By using the oil-gas separation device in the technical scheme, oil gas entering the oil-gas separation device is filtered by adopting a mode of combining the primary filtering structure and the secondary filtering element, the filtering effect and the separation efficiency of the oil-gas separation device can be effectively improved, and meanwhile, the central axis of the filtering cavity and the vertical direction are arranged in an acute angle mode, so that engine oil separated from the oil-gas separation device can quickly flow out, the blockage problem is avoided.
In addition, the oil-gas separation device according to the utility model can also have the following additional technical characteristics:
in some embodiments of the utility model, the housing includes a filter portion and a retainer portion, the filter chamber being located within the filter portion, the retainer portion being connected to an end of the filter portion remote from the end cap.
In some embodiments of the utility model, the fixing portion is integrally formed with the filtering portion, and the fixing portion is vertically disposed when the oil-gas separation device is in a use state.
In some embodiments of the present invention, an oil gas inlet is disposed at a top end of the fixing portion, and the oil gas inlet is communicated with the filtering cavity.
In some embodiments of the present invention, the oil-gas separation device further includes an oil baffle plate disposed at a bottom end of the fixing portion and facing the filter chamber.
In some embodiments of the present invention, an oil return hole is formed at the bottom of the lower end of the filter cavity, and the position of the oil return hole corresponds to the oil baffle.
In some embodiments of the utility model, an annular channel is provided between the outer side surface of the secondary filter element and the inner wall surface of the housing.
In some embodiments of the utility model, the primary filter structure is a spiral labyrinth passage.
In some embodiments of the utility model, the top end of the end cap is provided with an air outlet, and the air outlet is communicated with the secondary filter element.
The utility model also provides an engine, comprising:
an oil-gas separation device, which is the oil-gas separation device in the above embodiment;
and the preseparation device is connected with the other end of the shell in the oil-gas separation device.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
fig. 1 schematically shows an overall structural view of an oil-gas separation device according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a casing of the oil-gas separation device of fig. 1.
10: a housing, 11: filter unit, 111: primary filter structure, 112: a filter chamber, 12: fixing part, 121: an oil gas inlet;
20: end cap, 21: an air outlet;
30: secondary filter element, 31: an annular channel;
40: oil baffle plate.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The oil-gas separation device is a main component in a crankcase ventilation system and is used for separating engine oil in oil-gas discharged by a crankcase.
The common structural style of present oil-gas separation device is mostly the baffle formula maze, sets up one or more oil return passage in oil-gas separation device rear end to realize filtering the purpose of machine oil in the oil gas.
But the structural design of oil-gas separation in the oil-gas separation device of above current structural style is complicated and the overall arrangement is reasonable inadequately, and oil-gas separation device's separation efficiency is also lower simultaneously.
Fig. 1 schematically shows an overall structural view of an oil-gas separation device according to an embodiment of the present invention. As shown in FIG. 1, the utility model provides an oil-gas separation device and an engine with the same. The oil-gas separation device comprises a shell 10, an end cover 20 and a secondary filter element 30, wherein a filter cavity 112 is arranged in the shell 10, when the oil-gas separation device is in a use state, the central axis of the filter cavity 112 is arranged at an acute angle with the vertical direction, a primary filter structure 111 which is integrally formed with the shell 10 is arranged at the lower end of the filter cavity 112, the end cover 20 is connected with the high end of the shell 10, and the secondary filter element 30 is connected with the end cover 20 and is positioned at the high end of the filter cavity 112.
By using the oil-gas separation device in the technical scheme, oil gas entering the oil-gas separation device is filtered by adopting a mode of combining the primary filtering structure 111 and the secondary filtering element 30, the filtering effect and the separation efficiency of the oil-gas separation device can be effectively improved, and meanwhile, the central axis of the filtering cavity 112 and the vertical direction are arranged in an acute angle mode, so that engine oil separated from the oil-gas separation device can quickly flow out, the blockage problem is avoided.
Specifically, the secondary filter element 30 in the utility model is a filter element, which can efficiently filter oil gas entering the oil-gas separation device, and has a long service life, thereby prolonging the service life of the oil-gas separation device.
Specifically, the primary filtering structure 111 and the housing 10 are integrally formed, so that the purpose of no machining or a small amount of machining can be achieved, the cost can be reduced, the manufacturing time can be reduced to a certain extent, and the economical efficiency of the overall machining is improved.
In some embodiments of the present invention, as shown in fig. 1 and 2, the housing 10 includes a filter portion 11 and a fixing portion 12, the filter cavity 112 is located in the filter portion 11, and the fixing portion 12 is connected to an end of the filter portion 11 away from the end cap 20. The filtering part 11 in the embodiment can filter the oil gas entering the oil-gas separation device, so that the engine oil in the oil gas is discharged, and the engine oil which is not filtered is reduced to enter the combustion chamber for burning again. The fixing part 12 is used for fixing the filtering part 11 on the pre-separation device, so that the oil-gas separation device is detachably connected with the pre-separation device, a worker can detach the oil-gas separation device at any time to inspect and maintain the oil-gas inlet 121 and the primary filtering structure 111 of the device, and the reliability is improved. Meanwhile, the fixing part 12 can seal the right end of the filter cavity 112 to ensure the sealing performance of the filter cavity.
Specifically, the housing 10 of the present invention may be a window cover on an engine, and the window cover is detachably connected to the preseparation device. The blockage conditions of the oil inlet 121 and the secondary filter element 30 can be observed and checked by disassembling the observation window cover, so that oil-gas separation faults are prevented conveniently, and certain reliability is improved.
In some embodiments of the present invention, the fixing portion 12 is integrally formed with the filter portion 11. Therefore, the purpose of no machining or a small amount of machining can be achieved, the cost can be reduced, the manufacturing time can be reduced to a certain degree, and the economy is improved. And when the oil-gas separation device is in a use state, the fixing part 12 is placed in the vertical direction, so that the filter cavity 112 is in an inclined state, and the filtered engine oil is conveniently discharged.
In some embodiments of the present invention, as shown in fig. 1 and 2, the top end of the fixing portion 12 is provided with an oil gas inlet 121, and the oil gas inlet 121 is communicated with the filter cavity 112. The oil gas inlet 121 is used for guiding oil gas to be filtered into the filter cavity 112 of the filter part 11, so that the engine oil in the oil gas is filtered.
In some embodiments of the present invention, as shown in fig. 1, the oil-gas separation device further includes an oil baffle 40, and the oil baffle 40 in this embodiment is disposed at the bottom end of the fixing portion 12 and faces the filter cavity 112. Oil baffle 40 and fixed part 12 can seal the right-hand member of filter chamber 112 and handle to ensure filter chamber 112's leakproofness, oil baffle 40 can also carry out the storage to the machine oil of filtering simultaneously, has promoted whole oil-gas separation device's reliability.
In some embodiments of the present invention, the bottom of the lower end of the filter cavity 112 is provided with an oil return hole, and the position of the oil return hole corresponds to the oil baffle 40. When oil gas entering the filter cavity 112 passes through the primary filter structure 111 and the secondary filter element 30, meanwhile, because the central axis of the filter cavity 112 is arranged at an acute angle with the vertical direction, namely the filter cavity 112 is obliquely arranged, filtered engine oil can flow to the bottom of the filter cavity 112 from each position of the filter cavity 112 and then is collected through the oil return hole, the oil-gas separation device can conveniently recover the filtered engine oil, and the convenience is improved.
In some embodiments of the present invention, as shown in fig. 1, an annular channel 31 is provided between the outer side surface of the secondary filter element 30 and the inner wall surface of the housing 10. This enables gas passing through the primary filter structure 111 to enter the secondary filter element 30 through the annular passage 31, and to be filtered secondarily in the secondary filter element 30, the annular passage 31 providing a passage for the gas to enter the secondary filter element 30.
In some embodiments of the present invention, as shown in fig. 1 and 2, the primary filter structure 111 is a spiral labyrinth passage. The spiral labyrinth passage can furthest prolong the length of a flow passage of oil gas, increase the adsorption area and length of oil drops of engine oil, and improve the oil-gas separation efficiency and the filtering effect.
In some embodiments of the present invention, as shown in fig. 1, the top end of the end cap 20 is provided with an air outlet 21, and the air outlet 21 is communicated with the secondary filter element 30. The oil outlet is used for discharging gas passing through the primary filtering structure 111 and the secondary filtering element 30, so that the purpose of separating engine oil by the oil-gas separation device is achieved.
Specifically, a sealing rubber ring is further arranged between the end cover 20 and the housing 10, so that the sealing performance of the filter cavity 112 can be ensured, and the reliability of the oil-gas separation device is further improved.
Specifically, the oil-gas separation device has the advantage of generalization, and if the engine displacement is changed, the number of the oil-gas separation devices can be correspondingly increased, so that the optimal oil-gas separation effect is achieved.
The utility model also provides an engine, comprising:
an oil-gas separation device, which is the oil-gas separation device in the above embodiment;
and the preseparation device is connected with the other end of the shell in the oil-gas separation device.
By using the engine in the technical scheme, the oil-gas separation device on the engine filters oil gas entering the oil-gas separation device in a mode of combining the primary filtering structure and the secondary filtering element, the filtering effect and the separation efficiency of the oil-gas separation device can be effectively improved, and meanwhile, the central axis of the filtering cavity and the vertical direction are arranged in an acute angle mode, so that engine oil separated from the oil-gas separation device can flow out quickly, the blockage problem is avoided.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An oil-gas separation device, comprising:
the oil-gas separation device comprises a shell, wherein a filter cavity is arranged in the shell, when the oil-gas separation device is in a use state, the central axis of the filter cavity is arranged at an acute angle with the vertical direction, and a primary filter structure integrally formed with the shell is arranged at the lower end of the filter cavity;
the end cover is connected with the high end of the shell;
and the secondary filter element is connected with the end cover and is positioned at the high end of the filter cavity.
2. The oil-gas separation device according to claim 1, wherein the housing comprises a filter portion and a fixing portion, the filter chamber is located in the filter portion, and the fixing portion is connected with one end of the filter portion, which is far away from the end cover.
3. The oil-gas separation device according to claim 2, wherein the fixing portion is integrally formed with the filtering portion, and the fixing portion is disposed in a vertical direction when the oil-gas separation device is in a use state.
4. The oil-gas separation device according to claim 2, wherein an oil-gas inlet is formed at the top end of the fixing part, and the oil-gas inlet is communicated with the filter cavity.
5. The oil-gas separation device according to claim 2, further comprising an oil baffle plate disposed at a bottom end of the fixing portion and facing the filter chamber.
6. The oil-gas separation device according to claim 5, wherein an oil return hole is formed in the bottom of the lower end of the filter cavity, and the position of the oil return hole corresponds to that of the oil baffle plate.
7. The oil-gas separation device according to claim 1, wherein an annular passage is provided between an outer side surface of the secondary filter element and an inner wall surface of the housing.
8. The oil and gas separation device of claim 1, wherein the primary filter structure is a spiral labyrinth passage.
9. The oil-gas separation device of claim 1, wherein the top end of the end cap is provided with an air outlet, and the air outlet is communicated with the secondary filter element.
10. An engine, comprising:
an oil and gas separation device according to any one of claims 1 to 9;
and the preseparation device is connected with the other end of the shell in the oil-gas separation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120545369.6U CN215595688U (en) | 2021-03-15 | 2021-03-15 | Oil-gas separation device and engine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120545369.6U CN215595688U (en) | 2021-03-15 | 2021-03-15 | Oil-gas separation device and engine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215595688U true CN215595688U (en) | 2022-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120545369.6U Active CN215595688U (en) | 2021-03-15 | 2021-03-15 | Oil-gas separation device and engine with same |
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| Country | Link |
|---|---|
| CN (1) | CN215595688U (en) |
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2021
- 2021-03-15 CN CN202120545369.6U patent/CN215595688U/en active Active
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