CN220705785U - Oil-gas separator - Google Patents
Oil-gas separator Download PDFInfo
- Publication number
- CN220705785U CN220705785U CN202322469717.8U CN202322469717U CN220705785U CN 220705785 U CN220705785 U CN 220705785U CN 202322469717 U CN202322469717 U CN 202322469717U CN 220705785 U CN220705785 U CN 220705785U
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- China
- Prior art keywords
- oil
- filter element
- shell
- gas
- installation cavity
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- 238000009434 installation Methods 0.000 claims abstract description 42
- 238000000926 separation method Methods 0.000 claims abstract description 42
- 238000000605 extraction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 16
- 230000010354 integration Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 75
- 239000003921 oil Substances 0.000 description 28
- 239000002912 waste gas Substances 0.000 description 15
- 238000007789 sealing Methods 0.000 description 9
- 238000001914 filtration Methods 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses an oil-gas separator, belongs to the field of oil-gas separation devices, and solves the problem that the existing oil-gas separator is poor in oil-gas separation effect. The filter comprises a shell, wherein an installation cavity is formed in the shell, a filter element is arranged in the installation cavity, one end of the shell is provided with an air taking port communicated with an air inlet of the filter element, the extending direction of the air taking port is crossed with the extending direction of the air inlet of the filter element, and the other end of the shell is provided with an air outlet communicated with the installation cavity; the bottom of the shell is provided with an oil return structure. The oil-gas separator provided by the utility model can effectively improve the oil-gas separation effect, and is high in integration degree and small in occupied space.
Description
Technical Field
The utility model relates to an oil-gas separation device, in particular to an oil-gas separator.
Background
The crankcase ventilation system is used for discharging fuel gas leaked into the crankcase, but the gas in the crankcase cannot be directly discharged into the atmosphere, the oil-gas separator, also called as oil-gas separator, is used for separating engine oil in the gas, the treated gas enters the combustion chamber to continue to participate in combustion, and if the separation effect is poor, the condition that the engine burns the engine oil can occur, so that the engine emission index cannot be reached.
The traditional oil-gas separator generally adopts a labyrinth type oil-gas separation structure integrated in a valve chamber cover, and oil gas circulates through the labyrinth type oil-gas separation structure, so that the oil-gas separation is realized, but the oil-gas separation effect is not ideal. Therefore, most of the engines at present begin to adopt an oil-gas separator with a built-in filter element, and oil gas is discharged after being filtered by the filter element, so that the oil-gas separation is realized. However, the oil-gas separator with the existing integrated filter element only depends on the filter element to realize oil-gas separation, and the oil-gas separation effect still needs to be improved. Therefore, it is important to design a novel oil-gas separator.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art, and one of the purposes is to provide an oil-gas separator which can effectively improve the oil-gas separation effect, and has high integration degree and small occupied space.
The technical scheme of the utility model is as follows: the oil-gas separator comprises a shell, wherein an installation cavity is formed in the shell, a filter element is arranged in the installation cavity, one end of the shell is provided with a gas taking port communicated with a gas inlet of the filter element, the extending direction of the gas taking port is crossed with the extending direction of the gas inlet of the filter element, and the other end of the shell is provided with a gas outlet communicated with the installation cavity; the bottom of the shell is provided with an oil return structure.
As a further improvement, the extending direction of the gas taking port perpendicularly intersects with the extending direction of the gas inlet of the filter element.
Further, a positioning column is arranged at one end of the inner wall of the installation cavity, an air inlet of the filter element is sleeved on the positioning column, and an air vent for communicating the air inlet of the filter element with the air taking opening is arranged on the positioning column.
Further, the cross-sectional area of the gas taking port is larger than the cross-sectional area of the vent hole.
Further, a sinking groove is formed in the bottom of the mounting cavity, and at least one supporting rib for supporting the filter element is arranged in the sinking groove.
Further, the oil return structure comprises an oil return valve arranged at the bottom of the installation cavity.
Further, the bottom of the shell is also provided with a bottom shell, an oil collecting cavity communicated with the installation cavity is formed between the bottom shell and the shell, and the oil return valve is positioned at the bottom of the bottom shell.
Further, an oil baffle plate is arranged at the bottom of the installation cavity at one side close to the exhaust port.
Further, the shell on still detachable be equipped with the apron that covers the installation cavity, apron bottom be equipped with the chucking structure of chucking filter core.
Further, the filter element comprises an oil-gas separation filter element and a bypass valve, and the bypass valve is arranged on the oil-gas separation filter element close to one end of the exhaust port.
Advantageous effects
Compared with the prior art, the utility model has the following advantages:
1. according to the oil-gas separator, the filter element is arranged in the shell, the gas taking port is crossed with the extending direction of the gas inlet of the filter element, when waste gas enters the respirator through the gas taking port, the waste gas firstly passes through the turning part between the gas taking port and the gas inlet of the filter element to be subjected to impact separation, so that crude separation of oil gas is realized, and then the filter element is used for carrying out secondary filtration, so that a two-stage separation and filtration process is formed, the oil-gas separation effect can be effectively improved, and meanwhile, the filter element and the gas taking port are integrated on the shell, so that the integration degree is high, and the occupied space is small.
2. The filter element of the oil-gas separator consists of an oil-gas separation filter element and a bypass valve, and the waste gas enters the oil-gas separation filter element and is filtered by filter paper and then is discharged through an exhaust port to realize oil-gas separation; when the pressure in the filter element is too high due to the excessive exhaust gas quantity or the filter paper blockage, the exhaust gas pushes the bypass valve to open, the pressure in the filter element is released, and the pressure relief is realized, so that the purpose of protecting the filter element is achieved.
3. According to the oil-gas separator, the filter element is rapidly positioned and installed in the installation cavity through the positioning column and the supporting ribs, so that the installation efficiency is effectively improved, the installation cavity is plugged through the detachable cover plate, the filter element is clamped through the clamping structure, and the stability of installation of the filter element is improved while the convenience in assembly, disassembly and maintenance of the filter element is met.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic view of the structure of the housing of the present utility model;
FIG. 4 is a schematic view of a cover plate according to the present utility model;
FIG. 5 is a schematic cross-sectional view of a filter cartridge according to the present utility model.
Wherein: 1-shell, 2-installation cavity, 3-filter core, 4-air inlet, 5-air taking port, 6-air outlet, 7-reference column, 8-vent, 9-sink, 10-support rib, 11-oil return valve, 12-bottom shell, 13-oil collecting cavity, 14-oil baffle, 15-cover plate, 16-limiting plate, 17-buffer cavity, 18-second sealing ring, 19-third sealing ring, 31-oil-gas separation filter core, 32-bypass valve, 311-left cover plate, 312-right cover plate, 313-filter paper, 314-first sealing ring, 321-spring, 322-sealing cover, 323-penetrating part and 324-spring installation part.
Detailed Description
The utility model will be further described with reference to specific embodiments in the drawings.
Referring to fig. 1-5, the oil-gas separator comprises a shell 1, wherein a mounting cavity 2 is formed in the shell 1, a filter element 3 is arranged in the mounting cavity 2, one end of the shell 1 is provided with an air taking port 5 communicated with an air inlet 4 of the filter element 3, the extending direction of the air taking port 5 is crossed with the extending direction of the air inlet 4 of the filter element 3, so that a turning part between the air taking port 5 and the air inlet 4 of the filter element 3 can block waste gas to form coarse separation of the waste gas, and the other end of the shell 1 is provided with an air outlet 6 communicated with the mounting cavity 3; the bottom of the shell is provided with an oil return structure.
According to the oil-gas separator, the filter element 3 is arranged in the shell 1, the gas taking port 5 is arranged in a cross mode with the extending direction of the gas inlet 4 of the filter element 3, when waste gas enters the respirator through the gas taking port 5, the waste gas firstly passes through the turning part between the gas taking port 5 and the gas inlet 4 of the filter element 3 to be subjected to impact separation, coarse separation of oil gas is achieved, then the filter element 3 is subjected to secondary filtration, a two-stage separation filtration process is formed, the oil-gas separation effect can be effectively improved, meanwhile, the filter element 3 and the gas taking port 5 are integrated on the shell, and the integration degree is high and the occupied space is small.
Preferably, the extending direction of the air taking port 5 is perpendicular to the extending direction of the air inlet 4 of the filter element 3, so that a right angle is formed at the turning position between the air taking port 5 and the air inlet 4 of the filter element 3, the blocking effect on air flow is more obvious, and the coarse separation effect is further improved.
Preferably, a positioning column 7 is arranged at one end of the inner wall of the installation cavity 3, wherein the air inlet 4 of the filter element 3 is sleeved on the positioning column 7 to play a positioning role in installation of the filter element 3, and a vent hole 8 for communicating the air inlet 4 of the filter element 3 with the air taking port 5 is arranged on the positioning column 7 to ensure that waste gas can enter the filter element 3 for filtering.
Preferably, the cross-sectional area of the air taking opening 5 is larger than the cross-sectional area of the air vent 8, namely, the flow area of the waste gas at the air taking opening 5 is larger than the flow area of the air vent 8, the waste gas flow rate in the air taking opening 5 is large, and the waste gas flow rate in the air vent 8 is small, so that the effect that the waste gas is blocked at the turning position between the air taking opening 5 and the air inlet 4 of the filter element 3 is more obvious, and the coarse separation effect is further improved.
Preferably, the bottom in installation cavity 2 has seted up heavy groove 9, is equipped with at least one support rib 10 that is used for supporting filter core 3 in this heavy groove 9, adopts to set up support rib 10 in heavy groove 9 and supports filter core 3, can reduce the frictional force of filter core 3 and installation cavity 2 bottom on the one hand, more helps the installation of filter core 3, on the other hand can be so that form certain clearance between filter core 3 and the installation cavity 2 bottom, increases the flow area of the air current after the filtration, makes waste gas can evenly filter through the filter core, improves the filter effect. Further, the sinking groove 9 can be an arc-shaped groove in cross section, and when the filter element 3 is inserted into the mounting cavity 2 and contacted with the supporting ribs 10, the effect of automatically centering the filter element 2 can be achieved, so that the air inlet 4 of the filter element 3 is conveniently sleeved into the positioning column 7, and the installation is more convenient.
Preferably, the oil return structure includes an oil return valve 11 installed at the bottom of the installation cavity 2 to facilitate drainage of filtered oil. In other embodiments, the oil return structure may also be a micro oil return opening formed at the bottom of the installation cavity 2.
Preferably, a bottom shell 12 is further arranged at the bottom of the shell 1, the bottom shell 12 can be fixed at the bottom of the shell 1 in a friction welding mode, the bottom shell 12 can be mounted at the bottom of the shell 1 through bolts, an oil collecting cavity 13 communicated with the mounting cavity 2 is formed between the bottom shell 12 and the shell 1, an oil return valve 11 is arranged at the bottom of the bottom shell 12, oil separated from the filter element 3 can flow back into the oil collecting cavity 13 for temporary storage, and finally the oil is discharged through the oil return valve 11.
Preferably, an oil baffle 14 is also provided at the bottom of the mounting cavity 2 near the side of the vent 6 to prevent filtered oil from sliding along with the airflow to the vent 6.
Preferably, a cover plate 15 covering the installation cavity 2 is also detachably arranged on the housing 1, and in particular, the cover plate 15 is connected with the housing 1 through screws. In other embodiments, the cover 15 may be detachably mounted by being connected to the housing 1 by a snap. The clamping structure for clamping the filter element 3 is arranged at the bottom of the cover plate 15, and specifically, the clamping structure is a limiting plate 16, the limiting plate 16 is clamped at the end face of one end of the filter element 3, which is far away from the air inlet 4, so that the filter element 3 is prevented from moving axially, the limiting plate is matched with the positioning column 7, the filter element 3 is fixedly installed, further, one side of the limiting plate 16, which is close to the filter element 3, is an inclined plane, and the end face of the filter element 3 is conveniently clamped by the limiting plate 16. In other embodiments, the clamping structure may also be a U-shaped plate, which is clamped on the outer wall of the end cover of the filter element 3, and the axial displacement of the filter element 3 is prevented by using the friction force between the U-shaped plate and the end cover of the filter element 3.
According to the oil-gas separator, the filter element 3 is rapidly positioned and installed in the installation cavity 2 through the positioning column 7 and the supporting ribs 10, so that the installation efficiency is effectively improved, the installation cavity 2 is plugged through the detachable cover plate 15, the filter element 3 is clamped through the clamping structure, and the stability of the installation of the filter element is improved while the convenience in the assembly, disassembly and maintenance of the filter element is met.
Preferably, the filter element 3 includes an oil-gas separation filter element 31 and a bypass valve 32, wherein the bypass valve 32 is provided on the oil-gas separation filter element 31 near one end of the exhaust port 6. Specifically, the oil-gas separation filter element 31 is composed of a left end cover 311, a right end cover 312 and filter paper 313, the filter paper 313 is arranged between the left end cover 311 and the right end cover 312, the air inlet 4 is arranged in the left end cover 311, a first sealing ring 314 is arranged between the left end cover 311 and the positioning column 7, and the tightness between the filter element and the positioning column is improved; the bypass valve 32 is composed of a valve body and a spring 321, the valve body is slidably inserted into the right end cover 312, the valve body comprises a sealing cover 322, a penetrating part 323 and a spring connecting part 324 which are sequentially connected, the sealing cover 322 is arranged on the outer side of the right end cover 312, the penetrating part 323 is arranged on the right end cover 312 in a penetrating mode, and two ends of the spring 321 are respectively connected with the right end cover 312 and the spring connecting part 324.
The filter element 3 of the oil-gas separator is composed of an oil-gas separation filter element 31 and a bypass valve 32, and the waste gas enters the oil-gas separation filter element 31, is filtered by filter paper and is discharged through the exhaust port 6, so that oil-gas separation is realized; when the pressure in the filter element is too high due to the excessive exhaust gas quantity or the filter paper blockage, the exhaust gas pushes the bypass valve 32 to open, so that the pressure in the filter element is released, and the aim of protecting the filter element is fulfilled.
Preferably, a buffer cavity 17 for communicating the installation cavity 2 and the exhaust port 6 is further arranged in the shell 1, the buffer cavity 17 is communicated with the oil collecting cavity 13, the sectional area of the buffer cavity 17 is smaller than that of the installation cavity 2, the sectional area of the buffer cavity 17 is larger than that of the exhaust port 6, the buffer cavity is used for buffering air flow, meanwhile, the air flow can be blocked and disturbed through different flow areas, the air flow can be blocked and disturbed, oil-gas separation is further achieved, and particularly when the bypass valve 32 is opened for pressure relief, the oil-gas separation can be carried out on waste gas which is not separated by the oil-gas separation filter element 31, so that the oil-gas separation effect is further ensured.
Preferably, a second sealing ring 18 is further arranged at the bottom of the shell 1, so that the tightness of the whole respirator when the whole respirator is connected with the crankcase is improved, and a third sealing ring 19 is further arranged between the shell 1 and the cover plate 15, so that the tightness of the installation cavity 2 is ensured.
While only the preferred embodiments of the present utility model have been described above, it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these do not affect the effect of the implementation of the present utility model and the utility of the patent.
Claims (10)
1. The oil-gas separator comprises a shell (1), wherein an installation cavity (2) is formed in the shell (1), a filter element (3) is arranged in the installation cavity (2), and the oil-gas separator is characterized in that one end of the shell (1) is provided with an air taking port (5) communicated with an air inlet (4) of the filter element (3), the extending direction of the air taking port (5) is crossed with the extending direction of the air inlet (4) of the filter element (3), and the other end of the shell (1) is provided with an air outlet (6) communicated with the installation cavity (3); the bottom of the shell (1) is provided with an oil return structure.
2. An oil and gas separator according to claim 1, characterized in that the direction of extension of the gas extraction opening (5) perpendicularly intersects the direction of extension of the gas inlet opening (4) of the filter element (3).
3. The oil-gas separator according to claim 2, wherein one end of the inner wall of the installation cavity (3) is provided with a positioning column (7), the air inlet (4) of the filter element (3) is sleeved on the positioning column (7), and the positioning column (7) is provided with a vent hole (8) for communicating the air inlet (4) of the filter element (3) with the air taking port (5).
4. A separator as claimed in claim 3, wherein the cross-sectional area of the gas-taking opening (5) is larger than the cross-sectional area of the vent hole (8).
5. The oil-gas separator according to claim 1, wherein a sink (9) is arranged at the bottom of the installation cavity (2), and at least one support rib (10) for supporting the filter element (3) is arranged in the sink (9).
6. An oil and gas separator according to claim 1, characterized in that the oil return structure comprises an oil return valve (11) arranged at the bottom of the installation cavity (2).
7. The oil-gas separator according to claim 6, wherein a bottom shell (12) is further arranged at the bottom of the shell (1), an oil collecting cavity (13) communicated with the installation cavity (2) is formed between the bottom shell (12) and the shell (1), and the oil return valve (11) is positioned at the bottom of the bottom shell (12).
8. An oil and gas separator according to claim 1, characterized in that an oil baffle (14) is further provided at the bottom of the mounting chamber (2) at the side close to the exhaust port (6).
9. An oil-gas separator according to any one of claims 1-8, characterized in that the housing (1) is further detachably provided with a cover plate (15) covering the installation cavity (2), and the bottom of the cover plate (15) is provided with a clamping structure for clamping the filter element (3).
10. An oil and gas separator according to claim 9, characterized in that the filter element (3) comprises an oil and gas separation filter element (31) and a bypass valve (32), the bypass valve (32) being arranged on the oil and gas separation filter element (31) near one end of the exhaust port (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322469717.8U CN220705785U (en) | 2023-09-11 | 2023-09-11 | Oil-gas separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322469717.8U CN220705785U (en) | 2023-09-11 | 2023-09-11 | Oil-gas separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220705785U true CN220705785U (en) | 2024-04-02 |
Family
ID=90437923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322469717.8U Active CN220705785U (en) | 2023-09-11 | 2023-09-11 | Oil-gas separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220705785U (en) |
-
2023
- 2023-09-11 CN CN202322469717.8U patent/CN220705785U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |