CN216157775U - Engine ventilation system and vehicle - Google Patents
Engine ventilation system and vehicle Download PDFInfo
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- CN216157775U CN216157775U CN202121945373.8U CN202121945373U CN216157775U CN 216157775 U CN216157775 U CN 216157775U CN 202121945373 U CN202121945373 U CN 202121945373U CN 216157775 U CN216157775 U CN 216157775U
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Abstract
The utility model belongs to the technical field of engines, and particularly relates to an engine ventilation system and an engine. The engine ventilation system comprises a cylinder cover and a machine body, wherein the top end of the cylinder cover is provided with a groove, the bottom end of one side of the groove is provided with a push rod hole group and a boss group, the push rod hole group and the boss group are arranged at intervals, the boss group comprises a plurality of bosses, air blowby holes are formed in the bosses, and the machine body is located at the bottom end of the cylinder cover. By using the engine ventilation system in the technical scheme, a structural mode of combining the boss group and the push rod hole group is adopted, the push rod hole group can be used for oil return and air blowby, and the boss group has a certain height, so that engine oil cannot flow back to an oil pan through the boss group and is only used for air blowby, the reverse impact of oil return and air blowby is prevented, the unsmooth oil return is avoided, and the oil content of air blowby is reduced.
Description
Technical Field
The utility model belongs to the technical field of engines, and particularly relates to an engine ventilation system and a vehicle.
Background
When the engine works normally, pressure is generated by blowby gas and engine oil vapor of the cylinder, the pressure in the crankcase needs to be maintained within a certain range, if the pressure exceeds the range, the engine is damaged, and the crankcase needs to be ventilated to release pressure.
The structure of 8 push rod holes on the existing cylinder cover is consistent, gas taking and oil returning are integrated, each push rod hole on the upper top surface of the cylinder cover both performs gas blowby and oil returning, oil returning is easy to cause unsmooth, gas blowby oil content is high, burden of the oil-gas separator is increased, separation efficiency of the oil-gas separator is reduced, gas outlet oil content is high, environment is polluted, and oil consumption is increased. Meanwhile, cylinders of a main bearing wall of the engine body with the existing structure are not communicated, when the engine works normally, high-temperature gas in a combustion chamber of each cylinder leaks into a crankcase through a piston ring to form gas pulse, the pulse cannot be instantly diffused to the whole crankcase, and engine oil on the top surface of a cylinder cover meets the continuous impact of the pulses of the cylinders in sequence in the process of returning to the crankcase, so that the oil return is not smooth.
SUMMERY OF THE UTILITY MODEL
The utility model aims to at least solve the problem of low separation efficiency of the existing engine ventilation system. The purpose is realized by the following technical scheme:
a first aspect of the present invention provides an engine ventilation system comprising:
the air cylinder cover is characterized in that the top end of the air cylinder cover is provided with a groove, the bottom end of one side of the groove is provided with a push rod hole group and a boss group, the push rod hole group and the boss group are arranged at intervals, the boss group comprises a plurality of bosses, and air blowby holes are formed in the bosses;
a block located at a bottom end of the cylinder head.
By using the engine ventilation system in the technical scheme, a structural mode of combining the boss group and the push rod hole group is adopted, the push rod hole group can be used for oil return and air blowby, and the boss group has a certain height, so that engine oil cannot flow back to an oil pan through the boss group and is only used for air blowby, the reverse impact of oil return and air blowby is prevented, the unsmooth oil return is avoided, and the oil content of air blowby is reduced.
In addition, the engine ventilation system according to the present invention may further have the following additional technical features:
in some embodiments of the present invention, the push rod hole group comprises a plurality of push rod holes, and the push rod holes are arranged at intervals.
In some embodiments of the utility model, the set of bosses is located between adjacent push rod apertures and is disposed proximate to the gas-oil separator.
In some embodiments of the utility model, the number of push rod holes is six.
In some embodiments of the utility model, a plurality of the blowby holes are arranged at intervals.
In some embodiments of the utility model, the number of blowby holes is two.
In some embodiments of the utility model, the height dimension of the boss is less than the depth dimension of the groove.
In some embodiments of the utility model, the housing has a plurality of main bearing walls, and a plurality of the main bearing walls are provided with communication holes.
In some embodiments of the utility model, the engine ventilation system further comprises a cylinder head cover, the cylinder head cover is positioned at the top end of the cylinder head, and an oil-gas separator is arranged on the cylinder head cover and corresponds to the blow-by gas hole.
The utility model also provides a vehicle which comprises the engine ventilation system in the embodiment.
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:
figure 1 schematically shows a cooperating structural view of an engine block, a cylinder head and a cylinder head cover of an engine ventilation system according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a cylinder head of the engine ventilation system of FIG. 1;
FIG. 3 is a schematic view of another perspective of a cylinder head of the engine ventilation system of FIG. 1;
FIG. 4 is a schematic view of a partially assembled structure of a cylinder head and an air-oil separator of the engine ventilation system of FIG. 1;
FIG. 5 is a schematic structural view of the body of the engine ventilation system of FIG. 1;
FIG. 6 is a schematic view of another perspective of the body of the engine ventilation system of FIG. 1;
the reference numerals in the drawings denote the following:
10: cylinder head, 11: groove, 121: first push rod hole, 122: second push rod hole, 123: third push rod hole, 124: fourth push rod hole, 125: fifth push rod hole, 126: sixth push rod hole, 131: first boss, 1311: first blowby hole, 132: second boss, 1321: a second blowby hole;
20: body, 21: a communicating hole;
30: cylinder head cover, 31: and an oil-gas separator.
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.
Fig. 1 schematically shows a mating structural view of a block, a cylinder head and a cylinder head cover of an engine ventilation system according to an embodiment of the present invention. Fig. 2 is a schematic view of a cylinder head of the engine ventilating system of fig. 1. As shown in fig. 1 and 2, the present invention provides an engine ventilation system and a vehicle. The engine ventilation system comprises a cylinder cover 10 and a machine body 20, wherein the top end of the cylinder cover 10 is provided with a groove 11, the bottom end of one side of the groove 11 is provided with a push rod hole group and a boss group, the push rod hole group and the boss group are arranged at intervals, the boss group comprises a plurality of bosses, air vents are respectively arranged in the bosses, and the machine body 20 is positioned at the bottom end of the cylinder cover 10.
By using the engine ventilation system in the technical scheme, a structural mode of combining the boss group and the push rod hole group is adopted, the push rod hole group can be used for oil return and air blowby, and the boss group has a certain height, so that engine oil cannot flow back to an oil pan through the boss group and is only used for air blowby, the reverse impact of oil return and air blowby is prevented, the unsmooth oil return is avoided, and the oil content of air blowby is reduced.
Specifically, as shown in fig. 2, the boss group according to the present invention includes a first boss 131 and a second boss 132, the first boss 131 having a first blow-by hole 1311, and the second boss 132 having a second blow-by hole 1321.
In some embodiments of the present invention, as shown in fig. 2 and 3, the push rod hole set includes a plurality of push rod holes, and the plurality of push rod holes are spaced apart. The push rod hole collects blowby gas and oil return in an organic whole, and the interval sets up can retrieve the fluid and the gas of whole cylinder head 10 respectively and the drunkenness, and then promotes holistic oil return and blowby gas effect. The design of the push rod hole group in the embodiment is far away from the air inlet of the oil-gas separator 31, oil drops with large particles sink through collision of obstacles in the gas circulation process, the content of engine oil in gas entering the air inlet of the oil-gas separator 31 is low due to the comprehensive effect, and the load of the oil-gas separator 31 is further reduced.
In some embodiments of the present invention, as shown in fig. 4, a boss group is located between adjacent push rod holes and is disposed adjacent to the oil separator 31. The oil-gas separator 31 in the embodiment is arranged at the upper end of the middle part of the cylinder cover 10, the boss group is positioned between the adjacent push rod holes and can correspond to the oil-gas separator 31, the oil content in the gas from the blow-by hole is low, and most blow-by gas passes through the blow-by hole, so that the oil content in the gas entering the oil-gas separator 31 is low, the load of the oil-gas separator 31 is reduced, and the separation efficiency of the oil-gas separator 31 is improved.
In some embodiments of the utility model, as shown in FIG. 2, the number of pushrod holes is six.
In some embodiments of the present invention, as shown in FIG. 2, several blow-by holes are spaced apart. The interval sets up can collect the gaseous of the internal wider range of organism 20, and the rethread blowby hole flows to inhale through oil and gas separator 31, make the gas that oil and gas separator 31 collected more provide through the blowby hole, and then make the oil content in the gas that gets into oil and gas separator 31 low, improve oil and gas separator 31's separation efficiency.
In some embodiments of the present invention, as shown in FIG. 2, the number of blow-by holes is two.
In some embodiments of the utility model, as shown in fig. 2, the height dimension of the boss is smaller than the depth dimension of the groove 11. Thus, when the cylinder cover 10 is matched with the cylinder cover 10, the lug boss group and the cylinder cover 10 cannot interfere with each other, and the assembly process is ensured to be smooth.
In some embodiments of the present invention, as shown in fig. 5 and 6, the body 20 has a plurality of main bearing walls, each of which is provided with a communication hole 21. When high-temperature gas in each cylinder combustion chamber leaks into the crankcase through the piston ring, gas pulse can be rapidly distributed to the whole crankcase through the communication hole 21 on the main bearing wall, so that unsmooth oil return when engine oil flows through the oil return hole on the engine body 20 due to the influence of the gas pulse of each cylinder is avoided.
In some embodiments of the present invention, as shown in fig. 1, the engine ventilation system further includes a cylinder head cover 30, the cylinder head cover 30 is located at the top end of the cylinder head 10, an oil separator 31 is provided on the cylinder head cover 30, and the oil separator 31 corresponds to the blow-by gas hole.
Further, as shown in fig. 1, in the present invention, the cylinder head 10 is provided with a first push rod hole 121, a second push rod hole 122, a third push rod hole 123, a fourth push rod hole 124, a fifth push rod hole 125 and a sixth push rod hole 126, oil return and blow-by gas of the six push rod holes are reversely flushed, the blow-by gas has high oil content, and large oil droplets sink due to collision of obstacles in the gas circulation process because the distance from the gas intake port of the oil-gas separator 31 is long. In addition, the cylinder head 10 of the present invention is further provided with a first blow-by hole 1311 and a second blow-by hole 1321, two blow-by holes are only used for blow-by and most of the gas passes through the two blow-by holes, and since the blow-by holes are only used for gas transmission, the oil content of the blow-by gas is low, thereby reducing the burden of the oil-gas separator 31 and improving the separation efficiency of the oil-gas separator 31. The communicating holes 21 are designed among cylinders on the main bearing wall of the engine body 20, gas pulses can be rapidly distributed to the whole crankcase through the communicating holes 21, oil return is prevented from being unsmooth, oil content of blow-by gas is reduced, and separation efficiency of the oil-gas separator 31 is improved.
The utility model also provides a vehicle comprising the engine ventilation system.
By using the vehicle in the technical scheme, the structure mode of combining the boss group and the push rod hole group is adopted, the push rod hole group can be used for oil return and air blowby, and the boss group has a certain height, so that engine oil cannot flow back to an oil pan through the boss group and is only used for air blowby, so that reverse impact of oil return and air blowby is prevented, unsmooth oil return is avoided, and meanwhile, the oil content of air blowby is reduced.
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 engine ventilation system, comprising:
the air cylinder cover is characterized in that the top end of the air cylinder cover is provided with a groove, the bottom end of one side of the groove is provided with a push rod hole group and a boss group, the push rod hole group and the boss group are arranged at intervals, the boss group comprises a plurality of bosses, and air blowby holes are formed in the bosses;
a block located at a bottom end of the cylinder head.
2. The engine ventilation system of claim 1, wherein the set of pushrod holes comprises a plurality of pushrod holes spaced apart.
3. The engine ventilation system of claim 2, wherein the set of bosses are located between adjacent pushrod apertures and are disposed proximate the oil separator.
4. The engine ventilation system of claim 2, wherein the number of pushrod holes is six.
5. The engine ventilation system of claim 1, wherein a plurality of the blow-by holes are spaced apart.
6. The engine ventilation system of claim 5, wherein the number of blowby holes is two.
7. The engine ventilation system of claim 1, wherein a height dimension of the boss is less than a depth dimension of the groove.
8. The engine ventilation system of claim 1, wherein the housing has a plurality of main bearing walls, each of the plurality of main bearing walls having communication holes formed therein.
9. The engine ventilation system of any one of claims 1-8, further comprising a head cover located at a top end of the cylinder head, the head cover having an oil-gas separator thereon, the oil-gas separator corresponding to the blow-by gas hole.
10. A vehicle having an engine ventilation system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121945373.8U CN216157775U (en) | 2021-08-18 | 2021-08-18 | Engine ventilation system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121945373.8U CN216157775U (en) | 2021-08-18 | 2021-08-18 | Engine ventilation system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216157775U true CN216157775U (en) | 2022-04-01 |
Family
ID=80838863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121945373.8U Active CN216157775U (en) | 2021-08-18 | 2021-08-18 | Engine ventilation system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216157775U (en) |
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2021
- 2021-08-18 CN CN202121945373.8U patent/CN216157775U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221226 Address after: 261061 Shandong city in Weifang province Fu hi tech Industrial Development Zone, East Street No. 197 Patentee after: WEICHAI POWER Co.,Ltd. Patentee after: Baldwin (Weifang) Power Co.,Ltd. Address before: 261061 Shandong city in Weifang province Fu hi tech Industrial Development Zone, East Street No. 197 Patentee before: WEICHAI POWER Co.,Ltd. |
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| TR01 | Transfer of patent right |