CN210799083U - Load-adjustable oil-gas separator - Google Patents
Load-adjustable oil-gas separator Download PDFInfo
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- CN210799083U CN210799083U CN201921932889.1U CN201921932889U CN210799083U CN 210799083 U CN210799083 U CN 210799083U CN 201921932889 U CN201921932889 U CN 201921932889U CN 210799083 U CN210799083 U CN 210799083U
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Abstract
The utility model discloses a load-adjustable oil-gas separator, which comprises a separator body, an upper cover, an elastic part and a valve plate, wherein the separator body is provided with a gas mixing channel, an oil return channel, a gas purifying channel, a first gas flow channel and a gas mixing cavity; whether the second airflow channel between the separator body and the upper cover is switched on or off can be adjusted according to the flow rate of the crankcase ventilation. The utility model discloses an increase the elastic component and set up movable valve plate etc for this oil and gas separator can be according to load and flow, and automatically regulated flow area makes the gas stream velocity remain throughout at a certain within range.
Description
Technical Field
The utility model belongs to the technical field of the engine breather, especially, relate to an oil and gas separator.
Background
When an automobile engine works, the phenomenon of gas blowby of a crankcase exists, if the gas blowby can not be led out in time, the pressure of the crankcase is too high to damage the sealing of the crankcase, and the phenomena of gas leakage and oil leakage are easy to generate. And the blowby gas contains a large amount of fuel oil vapor and water vapor, and if the blowby gas meets condensation in a crankcase, adverse effects such as engine oil dilution, emulsification and the like can be generated, so that the performance of the engine oil is deteriorated, parts of the engine are seriously abraded, meanwhile, the power of the engine can be reduced along with the increase of the blowby gas, and the oil consumption rate can be increased along with the increase of the blowby gas. Therefore, in order to reduce and avoid the adverse effects of such blow-by, a crankcase ventilation device must be employed, and the gas-oil separator is the most important part of the crankcase ventilation device, so that high performance requirements are imposed on the gas-oil separator.
The prior art is generally as follows: as shown in fig. 1, a solid arrow indicates a flow direction of oil-containing mixed gas, a solid line hollow arrow indicates a flow direction of return oil, a dashed line hollow arrow indicates a flow direction of clean gas, a1 indicates a mixed gas passage, a2 indicates an upper cover, A3 indicates non-woven filter cloth, a4 indicates a separator body, a5 indicates a clean gas passage, a6 indicates an oil return passage, and the oil-containing mixed gas enters the body of the oil-gas separator through a gas extraction port and the mixed gas passage. The engine oil is separated by the filter element and then returns to the interior of the engine through the oil return channel. And the separated clean gas enters an engine air inlet system after passing through a clean gas channel.
However, the following technical defects exist: the engine works in a small-load working condition, the oil-containing air mixing amount is small, the flow speed is small when the oil-containing air mixing amount passes through the separation filter element, and the separation effect is poor. Under the working conditions of the engine and a large load, the flow of the oil-containing gas is large, the speed is high, the pressure loss before and after the oil-gas separator is large, and the over-high engine crank pressure can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides an adjustable oil and gas separator of load through increasing the elastic component and setting up movable valve plate etc. for this oil and gas separator can be according to load and flow, and automatically regulated flow area makes the cluster gas velocity of flow remain throughout at a certain within range.
In order to solve the technical problem, the utility model discloses a technical scheme be:
the utility model provides a load adjustable oil-gas separator, including separator body, upper cover, elastic component and valve plate, the separator body is equipped with and gets across gas passageway, oil return passage, air purification passageway, first air current passageway and gets across the gas chamber, is equipped with the filter piece in getting across the gas flow direction, the valve plate is located the top of getting across the gas chamber, the upper cover is installed in the upper end of separator body, the elastic component is located between valve plate and the upper cover, the one end of elastic component supports tightly the lower surface of upper cover, and the other end supports tightly the upper surface of valve plate;
when the force generated by the oil-containing mixed gas is less than or equal to the acting force of the elastic part, the valve plate is attached to the upper part of the mixed gas cavity, the oil-containing mixed gas passes through the mixed gas channel and the mixed gas cavity, then passes through the first gas flow channel and the filter element and is separated into clean gas and return oil, the clean gas flows out through the clean gas channel, and the return oil flows out through the return oil channel;
when the force generated by the oil-containing air communicating chamber is larger than the acting force of the elastic part, the air communicating chamber pushes the valve plate to move upwards, and a second air flow channel is formed between the valve plate and the air communicating chamber; the oil-containing gas mixture firstly passes through the gas mixture channel and the gas mixture cavity, then passes through the first gas flow channel, the second gas flow channel and the filter element and is separated into clean gas and return oil, the clean gas flows out through the clean gas channel, and the return oil flows out through the return oil channel.
In order to solve the technical problem, the utility model discloses a further technical scheme is: the gas communicating channel is a circular cavity positioned in the center of the separator body, and the gas communicating cavity is a circular cavity communicated with the gas communicating channel.
Furthermore, an annular cavity is formed between the serial air cavity and the outer shell of the separator body, and the air purifying channel is communicated with the annular cavity.
Furthermore, the first air flow channels are arranged in a plurality and are arranged at intervals along the circumferential direction of the cavity wall of the serial air cavity.
Further, the cross-sectional areas of the plurality of first air flow passages are different.
Further, the area of the cross section of the first air flow channel closer to the net air passage is smaller.
Further, the filter member fills the annular cavity.
Further, the filter element is a non-woven fabric filter element.
Further, the elastic member is a spring.
Furthermore, the inner surface of the upper cover is upwards recessed to form a groove, the upper surface of the valve plate extends to form a protrusion, and the elastic element is sleeved on the protrusion and then accommodated in the groove.
The utility model has the advantages that:
the utility model discloses a separator body, upper cover, elastic component and valve plate, the separator body is equipped with the cluster gas passageway, oil return passage, clean gas passageway, first air current channel and cluster gas chamber, be equipped with filter piece on the gas flow direction of cluster, through setting up mobilizable valve plate and elastic component, can be according to the size adjustment separator body of crankcase cluster gas velocity of flow and the break-make of the second air current channel between the upper cover whether, according to the load and the flow of cluster gas, automatically regulated flow area, keep the cluster gas velocity of flow always within an appropriate scope, that is to say, when the velocity of flow is too low, improve the velocity of flow; when the flow velocity is too high, the flow velocity is reduced, the separation efficiency is improved, and the pressure loss is reduced;
furthermore, the utility model discloses a gas channeling channel and the gas channeling chamber of separator body are annular or circular, compare in the flat plate-shaped of prior art, and annular structural design can, increase flow area, reduce loss of pressure
Furthermore, the utility model discloses an area of a plurality of first airflow channels's cross section is different, and the area of its cross section that is close to the air-purifying channel more is less, through non-uniform distribution's airflow channel, avoids strikeing many flows from the first airflow channel that is close to the air-purifying channel after the gas entering cluster air cavity, consequently can balance the air current velocity, makes its equipartition as far as possible, and the filtration piece of make full use of round improves separation efficiency.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
FIG. 1 is a cross-sectional view of the prior art;
FIG. 2 is an external view of the present invention;
fig. 3 is a schematic exploded view of the present invention;
fig. 4 is one of the axial cross-sectional views of the present invention (when the force generated by the blow-by is less than or equal to the force of the elastic member);
fig. 5 is a second axial cross-sectional view of the present invention (when the force generated by the blow-by is greater than the force of the elastic member);
fig. 6 is a schematic structural view of the separator body of the present invention;
fig. 7 is a top view of the separator body of the present invention;
the parts in the drawings are marked as follows:
the filter comprises a separator body 10, an air communicating channel 101, an oil return channel 102, a clean air channel 103, a first air flow channel 104, an air communicating cavity 105, a filter element 50, a second air flow channel 106, a shell 107, an annular cavity 108, an upper cover 20, a groove 201, an elastic element 30, a valve plate 40 and a protrusion 401.
Detailed Description
The following description is provided for illustrative embodiments of the present invention, and the advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure of the present invention. The present invention can also be implemented in other different ways, i.e. different modifications and changes can be made without departing from the scope of the present invention.
Example (b): a load-adjustable oil-gas separator, as shown in fig. 2 to 7, comprising a separator body 10, an upper cover 20, an elastic member 30 and a valve plate 40, wherein the separator body is provided with a gas communicating channel 101, an oil return channel 102, a gas purifying channel 103, a first gas channel 104 and a gas communicating cavity 105, a filter member 50 is arranged in the gas communicating flow direction, the valve plate is positioned above the gas communicating cavity, the upper cover is mounted at the upper end of the separator body, the elastic member is positioned between the valve plate and the upper cover, one end of the elastic member abuts against the lower surface of the upper cover, and the other end abuts against the upper surface of the valve plate;
as shown in fig. 4, when the force generated by the oil-containing serial gas is less than or equal to the acting force of the elastic member, the valve plate is attached to the upper part of the serial gas cavity, the oil-containing serial gas passes through the serial gas channel and the serial gas cavity, then passes through the first gas flow channel and the filter element and is separated into clean gas and return oil, the clean gas flows out through the clean gas channel, and the return oil flows out through the return oil channel;
as shown in fig. 5, when the force generated by the oil-containing air-communicating chamber is greater than the acting force of the elastic member, the air-communicating chamber pushes the valve plate to move upwards, and a second air flow channel 106 is formed between the valve plate and the air-communicating chamber; the oil-containing gas mixture firstly passes through the gas mixture channel and the gas mixture cavity, then passes through the first gas flow channel, the second gas flow channel and the filter element and is separated into clean gas and return oil, the clean gas flows out through the clean gas channel, and the return oil flows out through the return oil channel.
The gas communicating channel is a circular cavity positioned in the center of the separator body, and the gas communicating cavity is a circular cavity communicated with the gas communicating channel. The serial air cavity is communicated with the oil return channel.
An annular cavity 108 is formed between the serial air cavity and the outer shell 107 of the separator body, and the clean air channel is communicated with the annular cavity.
In this embodiment, the first air flow channels are provided in plurality and are arranged at intervals along the circumferential direction of the cavity wall of the serial air cavity.
The plurality of first air flow passages are different in area in cross section.
Preferably, the area of the cross-section of the first air flow channel closer to the net air passage is smaller.
The areas of the cross sections of the first air flow channels are different, and the area of the cross section of the first air flow channel, which is closer to the air purifying channel, is smaller, and the air flow channels which are non-uniformly distributed pass through, so that the air flow velocity can be balanced, the air flow velocity is uniformly distributed as much as possible, a circle of filter elements are fully utilized, and the separation efficiency is improved;
this design can avoid the problem of the first air current channel outflow of following being close to the net gas passageway after the air entrainment chamber that gets into, because, if the area of the cross section of first air current channel is evenly arranged, then the air entrainment air current can lead to nearest first air current channel outflow through leaving the net gas, and the first air current channel of keeping away from the net gas passageway and the non-woven fabrics filter core that corresponds do not have the air current to pass through, and the separation effect probably can reduce, because effective flow area greatly reduced.
The filter member is filled in the annular cavity.
The filter element is a non-woven fabric filter element, but is not limited thereto.
The elastic member is a spring, but is not limited thereto.
The inner surface of the upper cover is upwards sunken to form a groove 201, the upper surface of the valve plate extends to form a bulge 401, and the elastic piece is sleeved on the bulge and then accommodated in the groove.
The utility model discloses a theory of operation and working process as follows:
in fig. 4 and 5, the solid arrows indicate the flow direction of the oil-containing mixed gas, the solid hollow arrows indicate the flow direction of the oil return, and the dashed hollow arrows indicate the flow direction of the clean gas, as shown in fig. 4, when the engine is in a small load working condition, the oil-containing mixed gas flow rate of the crankcase is low, the force generated by the oil-containing mixed gas is less than or equal to the acting force of the spring, at this time, the valve plate is not enough to be pushed open, the oil-containing mixed gas sequentially passes through the mixed gas channel, the mixed gas cavity and the first gas flow channel in the middle of the separator body, the gas is accelerated, the flow rate is improved to a proper range before impacting the non-woven fabric filter element, the separation efficiency is improved, the engine oil and the gasoline are well separated, the clean gas passes through the non-woven fabric;
as shown in fig. 5, when the engine is in a heavy-load working condition, the flow rate of the oil-containing mixed gas in the crankcase is high, the acting force generated by the oil-containing mixed gas is greater than that of the spring, the spring is compressed to push open the valve plate, a gap is formed between the valve plate and the upper end of the mixed gas cavity, namely a second gas flow channel, at the moment, the mixed gas can not only pass through the first gas flow channel of the mixed gas cavity of the separator body, but also can flow out through the second gas flow channel between the valve plate and the mixed gas cavity, so that the flow interface of the gas is increased, the flow rate is reduced to be within an optimal range, the separation efficiency is improved, the pressure loss is reduced, after passing through the non-woven fabric filter element, the engine oil and the gasoline are separated, clean gas passes through;
from the above description, it can be seen that the gas-oil separator can be in an optimal working state, and the gas flow rate can be kept within a proper range, that is, the gas flow rate is neither too low nor too high.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same principle as the protection scope of the present invention.
Claims (10)
1. A load adjustable oil-gas separator is characterized in that: the separator comprises a separator body (10), an upper cover (20), an elastic piece (30) and a valve plate (40), wherein the separator body is provided with a gas mixing channel (101), an oil return channel (102), a gas purifying channel (103), a first gas flow channel (104) and a gas mixing cavity (105), a filter piece (50) is arranged in the gas mixing flow direction, the valve plate is positioned above the gas mixing cavity, the upper cover is arranged at the upper end of the separator body, the elastic piece is positioned between the valve plate and the upper cover, one end of the elastic piece is abutted against the lower surface of the upper cover, and the other end of the elastic piece is abutted against the upper surface of the valve plate;
when the force generated by the oil-containing mixed gas is less than or equal to the acting force of the elastic part, the valve plate is attached to the upper part of the mixed gas cavity, the oil-containing mixed gas passes through the mixed gas channel and the mixed gas cavity, then passes through the first gas flow channel and the filter element and is separated into clean gas and return oil, the clean gas flows out through the clean gas channel, and the return oil flows out through the return oil channel;
when the force generated by oil-containing air communicating is larger than the acting force of the elastic part, the air communicating pushes the valve plate to move upwards, and a second air flow channel (106) is formed between the valve plate and the air communicating cavity; the oil-containing gas mixture firstly passes through the gas mixture channel and the gas mixture cavity, then passes through the first gas flow channel, the second gas flow channel and the filter element and is separated into clean gas and return oil, the clean gas flows out through the clean gas channel, and the return oil flows out through the return oil channel.
2. The load adjustable oil and gas separator according to claim 1, wherein: the gas communicating channel is a circular cavity positioned in the center of the separator body, and the gas communicating cavity is a circular cavity communicated with the gas communicating channel.
3. The load adjustable oil and gas separator according to claim 2, wherein: an annular cavity (108) is formed between the serial air cavity and a shell (107) of the separator body, and the clean air channel is communicated with the annular cavity.
4. The load adjustable oil and gas separator according to claim 3, wherein: the first air flow channels are arranged in a plurality and are arranged at intervals along the circumferential direction of the cavity wall of the serial air cavity.
5. The load adjustable oil and gas separator according to claim 4, wherein: the plurality of first air flow passages are different in area in cross section.
6. The load adjustable oil and gas separator according to claim 5, wherein: the area of the cross section of the first air flow channel closer to the net air passage is smaller.
7. The load adjustable oil and gas separator according to claim 3, wherein: the filter member is filled in the annular cavity.
8. The load adjustable oil and gas separator according to claim 1, wherein: the filtering piece is a non-woven fabric filter element.
9. The load adjustable oil and gas separator according to claim 1, wherein: the elastic piece is a spring.
10. The load adjustable oil and gas separator according to claim 1, wherein: the inner surface of the upper cover is upwards sunken to form a groove (201), the upper surface of the valve plate extends to form a bulge (401), and the elastic piece is sleeved on the bulge and then accommodated in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921932889.1U CN210799083U (en) | 2019-11-11 | 2019-11-11 | Load-adjustable oil-gas separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921932889.1U CN210799083U (en) | 2019-11-11 | 2019-11-11 | Load-adjustable oil-gas separator |
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| Publication Number | Publication Date |
|---|---|
| CN210799083U true CN210799083U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921932889.1U Active CN210799083U (en) | 2019-11-11 | 2019-11-11 | Load-adjustable oil-gas separator |
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|---|---|
| CN (1) | CN210799083U (en) |
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- 2019-11-11 CN CN201921932889.1U patent/CN210799083U/en active Active
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