CN214366283U - Engine and crankcase ventilation system and oil-gas separator thereof - Google Patents
Engine and crankcase ventilation system and oil-gas separator thereof Download PDFInfo
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- CN214366283U CN214366283U CN202022811182.4U CN202022811182U CN214366283U CN 214366283 U CN214366283 U CN 214366283U CN 202022811182 U CN202022811182 U CN 202022811182U CN 214366283 U CN214366283 U CN 214366283U
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Abstract
The utility model relates to an engine and crankcase ventilation system and oil and gas separator thereof, the oil and gas separator comprises a separator body and an oil bath device, wherein, the oil bath device comprises a container, an air inlet pipe and an air outlet pipe, the container is filled with engine oil, one end of the air inlet pipe extends into the container and is positioned below the engine oil surface in the container, one end of the air outlet pipe is communicated with the container, the communication position of the air outlet pipe and the container is positioned above the engine oil surface in the container, and the other end of the air outlet pipe is communicated with the separator body; when the oil bath device is used, an air inlet pipe of the oil bath device is connected with a crankcase, blow-by gas of the crankcase firstly enters the oil bath device, engine oil in the oil bath device can intercept most PN particles, and the blow-by gas of the crankcase after oil bath is subjected to oil-gas separation by a separator body at the downstream of the oil bath device and then is discharged; the oil-gas separator can effectively intercept PN small particles carried in blow-by gas of a crankcase by adding the oil bath device, so that the problem that the PN emission of the oil-gas separator exceeds the standard is solved.
Description
Technical Field
The utility model relates to an engine technical field, in particular to engine and crankcase ventilation system and oil and gas separator thereof.
Background
The oil-gas separator is a main component in a crankcase ventilation system, and is used for efficiently separating engine oil in crankcase blow-by gas, and the separation performance of the oil-gas separator has important influence on the reliability and emission of an engine.
However, the existing oil-gas separator is difficult to filter PN (the total number of particles with the particle size exceeding 23nm in exhaust gas) in blow-by gas of a crankcase, and the problem that the PN emission of the oil-gas separator exceeds the standard is easily caused.
SUMMERY OF THE UTILITY MODEL
A first object of the utility model is to provide an oil and gas separator to avoid the problem that oil and gas separator PN emission exceeds standard.
A second object of the present invention is to provide a crankcase ventilation system and an engine including the above-mentioned gas-oil separator.
In order to achieve the above object, the utility model provides a following technical scheme:
an oil-gas separator comprising:
a separator body;
the oil bath device comprises a container, an air inlet pipe and an air outlet pipe, wherein one end of the air inlet pipe extends into the container and is positioned below the oil level in the container, one end of the air outlet pipe is communicated with the container, the communicated position of the air outlet pipe and the container is positioned above the oil level in the container, and the other end of the air outlet pipe is communicated with the separator body.
Preferably, a gas distribution net is further arranged in the container, and the gas distribution net is located below the oil level in the container and above the end part of the gas inlet pipe extending into the container.
Preferably, the gas distribution net is provided with a plurality of gas distribution nets, and each gas distribution net is arranged in the container at intervals up and down.
Preferably, the mesh number of each gas distribution net in the container is gradually increased from bottom to top.
Preferably, the container is provided with an overflow port, and the overflow port is positioned above the oil level in the container and below the communication position of the air outlet pipe and the container.
Preferably, a check valve is arranged at the overflow port and used for conducting the overflow port from the inside of the container to the outside of the container in a single direction.
A crankcase ventilation system comprises a crankcase and an oil-gas separator, wherein the oil-gas separator is the oil-gas separator, and an air inlet pipe of an oil bath device of the oil-gas separator is communicated with the crankcase.
Preferably, an overflow port is arranged on a container of the oil-gas separator, the overflow port is positioned above the oil level in the container and below the communication position of the air outlet pipe and the container, and the overflow port is communicated with an oil pan of the crankcase.
Preferably, a check valve is arranged at the overflow port and used for conducting the container to an oil pan of the crankcase in a single direction.
An engine comprising a crankcase ventilation system as claimed in any one of the preceding claims.
According to the technical scheme, the utility model discloses an oil and gas separator, this oil and gas separator includes separator body and oil bath ware, wherein, separator body and current oil and gas separator structure unanimous, oil bath ware includes the container, intake pipe and outlet duct, contain the machine oil in the container, one end of intake pipe stretches into in the container and is located the machine oil level in the container under, outlet duct one end communicates with the container and the outlet duct communicates the department with the container and is located the machine oil level in the container on, the other end of outlet duct communicates with separator body; when the oil bath device is used, an air inlet pipe of the oil bath device is connected with a crankcase, blow-by gas of the crankcase firstly enters the oil bath device, engine oil in the oil bath device can intercept most of PN small particles, and the blow-by gas of the crankcase after oil bath is discharged after oil-gas separation through a separator body at the downstream of the oil bath device; therefore, the oil-gas separator can effectively intercept PN small particles carried in blow-by gas of a crankcase by adding the oil bath, so that the problem that the PN emission of the oil-gas separator exceeds the standard is solved.
The utility model also provides a crankcase ventilation system and engine with above-mentioned oil and gas separator, because this oil and gas separator has above-mentioned beneficial effect, then adopted above-mentioned oil and gas separator's crankcase ventilation system and engine reason to have the same beneficial effect, no longer describe here.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an oil-gas separator provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an oil bath for an oil-gas separator according to an embodiment of the present invention.
Wherein:
1 is a separator body; 2 is an oil bath device; 201 is a container; 202 is an air inlet pipe; 203 is an air outlet pipe; 204 is a one-way valve; 205 is a gas distribution network.
Detailed Description
One of the cores of the utility model is to provide an oil-gas separator to the purpose that reaches.
The utility model discloses another core provides a crankcase ventilation system and engine based on above-mentioned oil and gas separator.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an oil-gas separator according to an embodiment of the present invention.
The embodiment of the utility model provides an in disclose an oil and gas separator includes separator body 1 and oil bath 2.
The oil bath device 2 comprises a container 201, an air inlet pipe 202 and an air outlet pipe 203, the container 201 contains engine oil, one end of the air inlet pipe 202 extends into the container 201 and is positioned below the engine oil level in the container 201, one end of the air outlet pipe 203 is communicated with the container 201, the communicated part of the air outlet pipe 203 and the container 201 is positioned above the engine oil level in the container 201, and the other end of the air outlet pipe 203 is communicated with the separator body 1.
In summary, compared with the prior art, when the oil-gas separator provided by the embodiment of the present invention is applied, the air inlet pipe 202 of the oil bath 2 is connected with the crankcase, the crankcase blowby gas firstly enters the oil bath 2, the engine oil in the oil bath 2 can retain most of the small particles of PN, and the crankcase blowby gas after oil bath is discharged after oil-gas separation through the separator body 1 at the downstream of the oil bath 2; therefore, the oil-gas separator can effectively intercept PN small particles carried in blow-by gas of a crankcase by adding the oil bath 2, so that the problem that the PN emission of the oil-gas separator exceeds the standard is solved.
After the crankcase blowby gas enters the oil bath 2, bubbles may be formed in the oil in the container 201, so that PN particles in the bubbles cannot contact with the oil, and the PN particles carried in the bubbles cannot be trapped.
Furthermore, a plurality of gas distribution nets 205 may be provided, each gas distribution net 205 is arranged in the container 201 at intervals up and down, and the mesh number of each gas distribution net 205 may be the same or different.
Further, the mesh number of each gas distribution net 205 in the container 201 is all different, and from the bottom up mesh number crescent, as shown in fig. 2 in the embodiment of the utility model provides an, be provided with three gas distribution net 205 in the container 201, three gas distribution net 205 is interval arrangement from top to bottom, and from the bottom up mesh number crescent, this kind of three-layer gas distribution net 205 structure can make the big bubble in the engine oil break or separate into tiny bubble, increase with the area of contact of engine oil to catch the PN granule in the crankcase blowby gas better.
Preferably, as shown in fig. 1 and fig. 2, an overflow port is provided on the container 201, the overflow port is located above the oil level in the container 201 and below the communication position between the air outlet pipe 203 and the container 201, the oil in the container 201 will gradually increase along with the operation of the engine, and when the oil level in the container 201 reaches the overflow port position, the oil can overflow from the overflow port, so as to avoid excessive oil in the container 201.
The overflow port can be directly communicated with an oil pan of a crankcase in the using process, so that the overflowed engine oil can return to the oil pan, and can be externally connected with a separate oil storage tank instead of being communicated with the oil pan.
Further, overflow mouth department is provided with check valve 204, check valve 204 is used for switching on the overflow mouth along container 201 inside to container 201 outside unilateral, through setting up check valve 204, when the oil pan is connected to the overflow mouth, this check valve 204 will switch on container 201 to the oil pan unilateral of crankcase, avoids the machine oil in the oil pan to flow backward, and when the overflow mouth and independent oil storage tank communicate, this check valve 204 will switch on container 201 to oil storage tank unilateral, avoids the machine oil in the oil storage tank to flow backward.
The embodiment of the utility model provides a crankcase ventilation system is still provided, this crankcase ventilation system includes crankcase and oil and gas separator, and wherein oil and gas separator is as above-mentioned embodiment oil and gas separator, oil and gas separator's oil bath 2's intake pipe 202 and crankcase intercommunication, because above-mentioned oil and gas separator has above-mentioned technological effect, then adopt this oil and gas separator's crankcase ventilation system's technological effect please refer to above-mentioned embodiment.
Further, the embodiment of the present invention further provides an engine, the engine includes the above-mentioned crankcase ventilation system, and because the engine adopts the above-mentioned crankcase ventilation system, the above-mentioned embodiment is referred to for the beneficial effects of the engine.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An oil and gas separator, comprising:
a separator body;
the oil bath device comprises a container, an air inlet pipe and an air outlet pipe, wherein one end of the air inlet pipe extends into the container and is positioned below the oil level in the container, one end of the air outlet pipe is communicated with the container, the communicated position of the air outlet pipe and the container is positioned above the oil level in the container, and the other end of the air outlet pipe is communicated with the separator body.
2. An oil and gas separator as in claim 1 wherein a gas distribution network is further provided within the vessel, the gas distribution network being located below the oil level within the vessel and above the end of the gas inlet pipe that extends into the vessel.
3. An oil separator as claimed in claim 2 wherein a plurality of gas distribution nets are provided, each gas distribution net being spaced up and down within the vessel.
4. An oil separator as in claim 3 wherein each of the gas distribution nets in the container is progressively larger in mesh from bottom to top.
5. An oil-gas separator as claimed in any one of claims 1 to 4, wherein an overflow port is provided in the container, the overflow port being located above the oil level in the container and below the communication between the outlet pipe and the container.
6. An oil-gas separator as in claim 5, wherein a one-way valve is arranged at the overflow port and used for conducting the overflow port along the container in a single direction to the outside of the container.
7. A crankcase ventilation system comprising a crankcase and an oil and gas separator, wherein the oil and gas separator is as claimed in any one of claims 1 to 4, and an air inlet pipe of an oil bath of the oil and gas separator is communicated with the crankcase.
8. The crankcase ventilation system according to claim 7 wherein the reservoir of the gas-oil separator is provided with an overflow port, the overflow port being located above the oil level in the reservoir and below the communication of the outlet duct with the reservoir, the overflow port being in communication with the sump of the crankcase.
9. The crankcase ventilation system according to claim 8, wherein a check valve is provided at the overflow port for unidirectional communication of the reservoir to an oil sump of the crankcase.
10. An engine comprising a crankcase ventilation system according to any one of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022811182.4U CN214366283U (en) | 2020-11-27 | 2020-11-27 | Engine and crankcase ventilation system and oil-gas separator thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022811182.4U CN214366283U (en) | 2020-11-27 | 2020-11-27 | Engine and crankcase ventilation system and oil-gas separator thereof |
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| Publication Number | Publication Date |
|---|---|
| CN214366283U true CN214366283U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022811182.4U Active CN214366283U (en) | 2020-11-27 | 2020-11-27 | Engine and crankcase ventilation system and oil-gas separator thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116291800A (en) * | 2023-03-21 | 2023-06-23 | 重庆长安汽车股份有限公司 | Engine crankcase ventilation system, engine oil water content adjusting method and vehicle |
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2020
- 2020-11-27 CN CN202022811182.4U patent/CN214366283U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116291800A (en) * | 2023-03-21 | 2023-06-23 | 重庆长安汽车股份有限公司 | Engine crankcase ventilation system, engine oil water content adjusting method and vehicle |
| CN116291800B (en) * | 2023-03-21 | 2024-05-03 | 重庆长安汽车股份有限公司 | Engine crankcase ventilation system, engine oil water content adjusting method and vehicle |
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