CN214366282U - Oil-gas preseparator and engine with same - Google Patents
Oil-gas preseparator and engine with same Download PDFInfo
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- CN214366282U CN214366282U CN202022809156.8U CN202022809156U CN214366282U CN 214366282 U CN214366282 U CN 214366282U CN 202022809156 U CN202022809156 U CN 202022809156U CN 214366282 U CN214366282 U CN 214366282U
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Abstract
The utility model belongs to the technical field of the engine, the utility model provides a separator and an engine that has it in advance of oil gas, the utility model provides a separator includes the outlet duct in body and the insert tube in advance of oil gas, and the body passes through flange mounting on the organism or the crankcase of engine, and the bottom of body is equipped with the air inlet, gets gas through communicating with the push rod chamber to baffle in the cooperation body forms inlet channel from bottom to top. Not only can increase the sectional area of the air inlet and reduce the air inlet flow speed, but also can realize the gravity separation of large-particle oil drops. But also can prevent the engine oil flowing down from the top of the push rod cavity of the machine body from entering the air inlet.
Description
Technical Field
The utility model belongs to the technical field of the engine, concretely relates to oil gas preseparator. The utility model discloses still relate to an engine.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
Along with the tightening of emission regulations, the requirement on the efficiency of the oil-gas separator is higher, if the oil content of gas entering the oil-gas separator from a crankcase is too high, the oil content of the separated gas cannot meet the requirement, the load of the oil-gas separator is increased, the service life is shortened, and the reliability is poor.
The existing means is to select a larger oil-gas separator with higher efficiency or to add an oil-gas separator externally to reduce the oil content of the outlet gas entering the main separator. But increases the pressure resistance, causes the crankcase pressure to rise, causes various oil leakage faults, and increases the cost and occupies the whole machine space.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the oil-gas preseparation device pressure drag is big, bulky among the prior art at least, this purpose is realized through following technical scheme:
the utility model discloses a first aspect provides an oil gas preseparator, is used for the engine oil gas preseparator includes:
the engine air intake structure comprises a pipe body, a baffle plate and a connecting piece, wherein a cavity is formed in the pipe body, the pipe body is used for being assembled in an air intake of the engine, an air inlet and an air outlet are respectively arranged at a first end and a second end of the side wall of the pipe body, the air inlet and the air outlet are both positioned at the bottom of the pipe body, the baffle plate is arranged in the cavity, an air inlet channel is formed by surrounding the air inlet by the baffle plate and the pipe wall of the pipe body, and the air inlet channel is communicated with the cavity;
the air outlet pipe penetrates through the air outlet, and is communicated with the cavity.
The utility model provides an oil gas preseparator installs on the organism or the crankcase of engine, when oil gas preseparator installs on the organism of engine, this oil gas preseparator gets gas with the push rod chamber intercommunication on the organism in advance, and the bottom of body is equipped with the air inlet, and the cooperation baffle forms inlet channel from bottom to top. Not only can increase the sectional area of the air inlet and reduce the air inlet flow speed, but also can realize the gravity separation of large-particle oil drops. But also can prevent the engine oil flowing down from the top of the push rod cavity of the machine body from entering the air inlet.
In addition, according to the utility model discloses a separator is in advance divided to oil gas still can have following additional technical characterstic:
in some embodiments of the present invention, the length of the air inlet along the radial direction of the pipe body is less than half of the length of the pipe body along the radial direction.
In some embodiments of the present invention, the length of the baffle along the radial direction of the pipe body is greater than half of the length of the pipe body along the radial direction.
In some embodiments of the present invention, an air inlet cross-sectional area of the air inlet is smaller than an air inlet cross-sectional area of the air inlet passage.
In some embodiments of the present invention, the air inlet end of the air outlet pipe extends into the cavity, the end face of the air inlet end is a chamfered surface, and the chamfered surface deviates from the gas circulation direction of the cavity.
In some embodiments of the present invention, a gap is provided between the top end of the oblique cut surface and the pipe wall of the pipe body corresponding to the gas outlet.
The utility model discloses an in some embodiments, the outlet duct certainly inlet end to the end of giving vent to anger are the straight tube section in proper order, with the protruding section that the straight tube section is connected, the diameter of protruding section is greater than the diameter of straight tube section.
In some embodiments of the present invention, the oil-gas preseparator further comprises:
the flange is sleeved on the outer side of the pipe body and used for being connected with the engine, and an annular groove is formed in the outer wall surface of the flange along the circumferential direction;
and the sealing ring is sleeved in the annular groove.
The utility model discloses an in some embodiments, be equipped with the oil gallery on the bottom of body, the bottom of cavity is passed through the oil gallery with the inside intercommunication of gas intaking mouth.
A second aspect of the present invention provides an engine, comprising:
the gas-liquid separation device comprises a machine body, wherein a push rod cavity is arranged in the machine body, and is provided with a gas taking port;
the oil-gas separator is provided with an air inlet;
the utility model discloses oil gas preseparator that the first aspect provided, oil gas preseparator assembly is in the gas intaking mouth, oil gas preseparator the outlet duct with oil gas separator the inlet port intercommunication.
The utility model discloses the engine that the second aspect provided have with the utility model discloses the same beneficial effect of oil gas preseparator that the first aspect provided, no longer give unnecessary details here.
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 invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
fig. 1 schematically shows a schematic structural view of an oil-gas preseparator according to an embodiment of the present invention;
FIG. 2 schematically illustrates a cross-sectional schematic view of an oil and gas preseparator according to an embodiment of the present invention;
FIG. 3 schematically illustrates a cross-sectional view of an oil and gas preseparator assembled in a body, according to an embodiment of the present invention;
the reference symbols in the drawings denote the following:
10: a machine body, 11: push rod cavity, 12: an air intake;
20: a pipe body, 21: outlet duct, 211: chamfer, 212: straight tube section, 213: convex section, 22: cavity, 23: intake passage, 24: flange, 25: air inlet, 26: baffle, 27: oil return hole, 28: and (5) sealing rings.
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, 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 "second" and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, an 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", "inner", "side", "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.
As shown in fig. 1, the utility model discloses a first aspect provides an oil gas preseparator, and oil gas preseparator includes:
the engine air intake structure comprises a pipe body 20, wherein a cavity 22 is formed in the pipe body 20, the pipe body 20 is used for being assembled in an air intake 12 of an engine, a first end and a second end of the side wall of the pipe body 20 are respectively provided with an air inlet 25 and an air outlet, the air inlet 25 and the air outlet are both positioned at the bottom of the pipe body 20, a baffle 26 is arranged in the cavity 22, the baffle 26 and the pipe wall of the pipe body 20 surround the air inlet 25 to form an air inlet channel 23, and the air inlet channel 23 is communicated with the cavity 22;
an air outlet pipe 21, the air outlet pipe 21 is arranged in the air outlet in a penetrating mode, and the air outlet pipe 21 is communicated with the cavity 22.
The utility model provides an oil gas preseparator installs on the organism 10 or the crankcase of engine, gets gas with the push rod chamber intercommunication, and the bottom of body 20 is equipped with air inlet 25, and cooperation baffle 26 forms inlet channel 23 from bottom to top. The air inlet flow rate is reduced by the cavity 22 in the tube body 20, and the gravity separation of large oil drops is realized by the impact of the oil-gas mixture on the baffle 26. It is also possible to prevent oil flowing down from the top of the rod chamber of the body 10 from entering the air inlet 25.
In some embodiments of the present invention, as shown in fig. 2, the length of the air inlet 25 along the radial direction of the pipe body 20 (h in fig. 2)1) Less than half the length of the pipe body 20 in the radial direction (h in fig. 2)2) So that the cross section of the air intake port 12 is small and the air intake passage is formed23, the cross section is larger, so that the air inlet flow speed is reduced, and the large-particle oil drops are separated by gravity.
In some embodiments of the present invention, the length of the baffle 26 along the radial direction of the tube 20 (h in fig. 2)3) Greater than the length of the pipe body 20 in the radial direction (h in fig. 2)2) The intake air speed is reduced and oil droplets in the intake air are adsorbed.
In some embodiments of the present invention, the air inlet section area of the air inlet 25 is smaller than the air inlet section area of the air inlet channel 23, so that the air inlet speed is reduced, and the gravity separation of large oil drops is realized.
In some embodiments of the present invention, the air inlet end of the air outlet pipe 21 extends into the cavity 22, and the end surface of the air inlet end of the air outlet pipe 21 is a chamfer 211, which deviates from the direction of the air flowing in the cavity 22. The air outlet pipe 21 extends into the cavity 22 for a certain height to prevent the engine oil in the cavity 22 from directly flowing into the air outlet pipe 21. The outlet pipe 21 in the cavity 22 can be designed into a chamfer 211 back to the air inlet direction, oil gas enters the cavity 22 and then collides with the wall surface of the chamfer pipe to realize oil-gas separation, then the oil-gas separation is carried out again by surrounding the chamfer pipe to collide with the wall surface of the cavity 22, and finally the oil gas reversely enters the outlet pipe 21 from the chamfer. The inclined cut can increase the flow cross section area, reduce the flow speed, reduce the carrying amount of engine oil and improve the separation efficiency.
In some embodiments of the utility model, leave the clearance between the top of scarf 211 and the pipe wall that body 20 and gas outlet correspond, make outlet duct 21 and body 20's pipe wall keep the certain distance, make oil gas can freely circulate, avoid oil gas here gathering to gather and gather.
In some embodiments of the present invention, the outlet pipe 21 is a straight pipe section 212 sequentially from the inlet end to the outlet end, and is connected to the protruding section 213 with the straight pipe section 212. The protruding section 213 may be an arc-shaped protrusion, and the stability of the connection with the pipeline is improved by providing the protruding section 213.
In some embodiments of the present invention, the oil-gas preseparator further comprises:
the flange 24 is sleeved on the outer side of the pipe body 20, the flange 24 is used for being connected with an engine, a ring groove is formed in the outer wall surface of the flange 24 along the circumferential direction, the flange 24 is connected with the engine, and the connection reliability of the oil-gas preseparator is enhanced;
the sealing ring 28 and the sealing ring 28 are sleeved in the annular groove, so that the sealing performance is enhanced, and the air leakage of the push rod cavity 11 is avoided.
The utility model discloses an in some embodiments, be equipped with oil gallery 27 on the bottom of body 20, the inside intercommunication of oil gallery 27 and gas fetching port 12 is passed through to the bottom of cavity 22, and oil gallery 27 communicates with push rod chamber 11 through the clearance between the wall of gas fetching hole and the body 20 for the oil that preseparates drips to flow back to in the push rod chamber 11 through oil gallery 27 in advance.
The second aspect of the present invention provides an engine, comprising:
the air purifier comprises a machine body 10, wherein a push rod cavity is arranged in the machine body 10, and an air intake port 12 is arranged in the push rod cavity;
the oil-gas separator is provided with an air inlet;
the utility model discloses the oil gas preseparator that the first aspect provided, oil gas preseparator assembly are in getting gas port 12, and oil gas preseparator's outlet duct 21 communicates with oil gas separator's inlet port.
The utility model discloses the engine that the second aspect provided have with the utility model discloses the same beneficial effect of oil gas preseparator that the first aspect provided, no longer give unnecessary details here.
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 should be covered by 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 and gas preseparator for an engine, comprising:
the engine air intake structure comprises a pipe body, a baffle plate and a connecting piece, wherein a cavity is formed in the pipe body, the pipe body is used for being assembled in an air intake of the engine, an air inlet and an air outlet are respectively arranged at a first end and a second end of the side wall of the pipe body, the air inlet and the air outlet are both positioned at the bottom of the pipe body, the baffle plate is arranged in the cavity, an air inlet channel is formed by surrounding the air inlet by the baffle plate and the pipe wall of the pipe body, and the air inlet channel is communicated with the cavity;
the air outlet pipe penetrates through the air outlet, and is communicated with the cavity.
2. The oil and gas preseparator according to claim 1, wherein the length of said gas inlet in the radial direction of said pipe body is less than half the length of said pipe body in the radial direction.
3. The oil and gas preseparator of claim 1, wherein the length of said baffle in the radial direction of said tube is greater than half the length of said tube in the radial direction.
4. The oil and gas preseparator of claim 1, wherein the air intake cross-sectional area of said air intake is less than the air intake cross-sectional area of said air intake passage.
5. The oil-gas preseparator according to claim 1, characterized in that the inlet end of the outlet pipe extends into the cavity, the end surface of the inlet end is a chamfered surface, and the chamfered surface is arranged away from the gas flow direction of the cavity.
6. The oil-gas preseparator according to claim 5, characterized in that a gap is provided between the top end of the chamfer and the pipe wall of the pipe body corresponding to the gas outlet.
7. The oil-gas preseparator according to claim 5, characterized in that the outlet pipe is a straight pipe section and a convex section connected with the straight pipe section in sequence from the gas inlet end to the gas outlet end, and the diameter of the convex section is larger than that of the straight pipe section.
8. The oil and gas preseparator according to any of claims 1 to 6, further comprising:
the flange is sleeved on the outer side of the pipe body and used for being connected with the engine, and an annular groove is formed in the outer wall surface of the flange along the circumferential direction;
and the sealing ring is sleeved in the annular groove.
9. The oil-gas preseparator according to any one of claims 1 to 6, characterized in that the bottom of said pipe body is provided with an oil return hole, and the bottom of said cavity is communicated with the interior of said air intake port through said oil return hole.
10. An engine, characterized in that the engine comprises:
the gas-liquid separation device comprises a machine body, wherein a push rod cavity is arranged in the machine body, and is provided with a gas taking port;
the oil-gas separator is provided with an air inlet;
the oil and gas preseparator according to any one of claims 1 to 9, which is fitted in the gas extraction opening, the gas outlet pipe of the oil and gas preseparator being in communication with the gas inlet opening of the oil and gas separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022809156.8U CN214366282U (en) | 2020-11-27 | 2020-11-27 | Oil-gas preseparator and engine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022809156.8U CN214366282U (en) | 2020-11-27 | 2020-11-27 | Oil-gas preseparator and engine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214366282U true CN214366282U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022809156.8U Active CN214366282U (en) | 2020-11-27 | 2020-11-27 | Oil-gas preseparator and engine with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214366282U (en) |
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2020
- 2020-11-27 CN CN202022809156.8U patent/CN214366282U/en active Active
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