CN220909835U - Cylinder head, engine and vehicle - Google Patents
Cylinder head, engine and vehicle Download PDFInfo
- Publication number
- CN220909835U CN220909835U CN202322667462.6U CN202322667462U CN220909835U CN 220909835 U CN220909835 U CN 220909835U CN 202322667462 U CN202322667462 U CN 202322667462U CN 220909835 U CN220909835 U CN 220909835U
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- cylinder head
- air inlet
- cylinder
- intake
- exhaust
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- 238000007789 sealing Methods 0.000 claims abstract description 42
- 238000005452 bending Methods 0.000 claims abstract description 3
- 230000003247 decreasing effect Effects 0.000 claims description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 27
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a cylinder cover, an engine and a vehicle, wherein the cylinder cover comprises: the cover body is provided with an air inlet surface and a sealing surface which are adjacently arranged; the air inlet channel is arranged on the cover body and extends in a bending way between the air inlet surface and the sealing surface; the air inlets are arranged in a plurality of ways, and the air inlets are independent of each other. The technical scheme of the utility model solves the technical problem that the size of the existing methanol engine is bigger.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a cylinder cover, an engine and a vehicle.
Background
Methanol is used as a novel clean energy source, has wide application prospect in the automobile industry at present, is generally developed by using a diesel engine platform in the field of the prior methanol engine, and is generally in a tumble air inlet channel structure in the methanol engine due to the fact that the combustion characteristic of the methanol is biased to gasoline, and the valves are arranged in parallel.
In the current methanol engine architecture, all intake valves of the same cylinder generally share one air inlet channel, and because the intake valves are arranged in parallel, a retaining wall structure is required to be arranged between the intake valves to split the air flow of the air inlet channel, the length of the air inlet channel is limited by the length of the retaining wall due to the structural form, and smooth transition is required on the edge of the retaining wall and the inner wall of the air inlet channel in order not to influence the air inlet performance, the length of the air inlet channel is difficult to shorten, the size and the weight of a cylinder cover provided with the air inlet channel are large, and the whole vehicle is unfavorable for light weight and power economy.
Disclosure of utility model
The utility model mainly aims to provide a cylinder cover, an engine and a vehicle, and aims to solve the technical problem that the size of the existing methanol engine is larger.
In order to achieve the above object, the present utility model provides a cylinder head comprising:
The cover body is provided with an air inlet surface and a sealing surface which are adjacently arranged; and
An air inlet channel which is arranged on the cover body and extends between the air inlet surface and the sealing surface in a bending way; the air inlets are arranged in a plurality of ways, and the air inlets are arranged independently.
Optionally, a plurality of the air inlets are arranged parallel to each other.
Optionally, the air inlet channel is provided with a first air inlet arranged on the air inlet surface and a second air inlet arranged on the sealing surface, and the caliber of the first air inlet is larger than that of the second air inlet.
Optionally, from the first air inlet to the second air inlet, the inner diameter of the air inlet channel changes in a decreasing state.
Optionally, the cylinder head further includes an intake valve disposed on the cover body, each intake passage is correspondingly disposed on one of the intake valves, and the intake valve is configured to open and close the intake passage.
Optionally, the cover body has an exhaust face adjacent to the sealing face, the cylinder head further includes two exhaust ducts, and the two exhaust ducts are disposed on the cover body and extend from the sealing face to the exhaust face.
Optionally, the cylinder head further includes an exhaust valve disposed on the cover body, each exhaust passage is correspondingly disposed with one exhaust valve, and the exhaust valve is used for opening and closing the exhaust passage.
Optionally, the cover body is further provided with a plurality of connection holes, and the plurality of connection holes are annularly arranged.
Optionally, the plurality of connection holes are equally spaced.
The utility model also proposes an engine comprising:
a cylinder block provided with a cylinder;
The cylinder cover is arranged on the cylinder body and used for sealing the cylinder, and the cylinder cover is the cylinder cover.
The utility model also proposes a vehicle comprising:
A vehicle body;
and an engine provided on the vehicle body, the engine being the above-described engine.
Compared with the prior art, in the technical scheme of the utility model, the cylinder cover comprises the cover body, wherein the cover body is provided with the adjacent air inlet surface and the adjacent air inlet surface, and in addition, the cover body is also provided with a plurality of air inlets which are mutually independent, so that the arrangement of the retaining wall structure can be canceled by arranging a plurality of air inlets which are mutually independent, the length of the air inlet is not influenced by the length of the retaining wall, and the structure of the air inlet can be shortened according to actual requirements, thereby reducing the overall size and weight of the cylinder cover, improving the light weight and the power economy of the whole vehicle, and in addition, because the air inlet of each air inlet is independently carried out, the air inlet of the air inlet is not influenced by the retaining wall structure any more, thereby being beneficial to improving the air inlet performance; in addition, in the scheme, the air inlet channel is bent from the air inlet surface to the sealing surface, so that air flow can downwards rotate under the guidance of the air inlet channel in the process from the air inlet surface to the sealing surface, and the air flow can conveniently enter the cylinder to form tumble.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a cross-sectional structure of an embodiment of a cylinder head according to the present utility model;
FIG. 2 is a schematic view of a vertical cross-sectional structure of an embodiment of a cylinder head according to the present utility model;
fig. 3 is a schematic view of a transverse sectional structure of a conventional cylinder head.
Reference numerals illustrate:
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 10 | Air inlet channel | 20 | Retaining wall |
| 100 | Cover body | 200 | Air inlet channel |
| 300 | Exhaust passage | 400 | Connecting hole |
| 110 | Air inlet surface | 120 | Sealing surface |
| 130 | Exhaust surface |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
As shown in fig. 3, in the conventional air intake structure of the methanol engine, all the intake valves of the same cylinder generally share one air intake channel 10, because the intake valves are arranged in parallel, a retaining wall 20 structure needs to be arranged between the intake valves to split the air flow of the air intake channel 10, the length of the air intake channel 10 is limited by the length of the retaining wall 20 due to the structural form, and the edge of the retaining wall 20 and the inner wall of the air intake channel 10 need to be smoothly transited in order not to affect the air intake performance, which causes that the length of the air intake channel 10 is difficult to be shortened, and the size and weight of a cylinder head provided with the air intake channel 10 are larger, so that the weight of the whole vehicle is not favorable for light weight and power economy.
In order to solve the technical problem that the size of the existing methanol engine is bigger, the technical scheme provides a cylinder cover, and the cylinder cover comprises:
a cover body 100, wherein the cover body 100 is provided with an air inlet surface 110 and a sealing surface 120 which are adjacently arranged; and
An intake duct 200 provided in the cover body 100 and extending between the intake surface 110 and the sealing surface 120 in a curved manner; the air inlet 200 is provided with a plurality of air inlets 200, and the plurality of air inlets 200 are independently arranged.
Further, the plurality of intake ducts 200 are disposed in parallel with each other.
Further, the cylinder head further includes an intake valve provided in the cover body 100, and each intake passage 200 is correspondingly provided with an intake valve for opening and closing the intake passage 200.
Compared with the prior art, in the technical scheme of the utility model, the cylinder head comprises the cover body 100, the cover body 100 is provided with the adjacent air inlet surface 110 and the sealing surface 120, in addition, the cover body 100 is also provided with a plurality of air inlet channels 200, and the air inlet channels 200 are mutually independent, so that the arrangement of the retaining wall 20 structure can be canceled by arranging the plurality of air inlet channels 200 mutually independent, the length of the air inlet channel 200 is not influenced by the length of the retaining wall 20, the structure of the air inlet channel 200 can be shortened according to actual needs, the overall size and weight of the cylinder head can be reduced, the weight of the whole cylinder head is improved, and in addition, the weight and the power economy of the whole cylinder are improved, and the air inlet of the air inlet channel 200 is not influenced by the retaining wall 20 structure any more due to the independent air inlet of each air inlet channel 200, thereby being beneficial to improving the air inlet performance; in addition, in the present embodiment, the air inlet 200 is disposed in the area of the cover body 100 between the air inlet 110 and the sealing surface 120, and the air inlet 200 extends toward the sealing surface 120 in a curved manner, so that the air flow can rotate downward under the guidance of the air inlet 200 during the process from the air inlet 110 to the sealing surface 120, so as to facilitate the air flow to form a tumble after entering the cylinder.
Specifically, as shown in fig. 1 to 3, in the present embodiment, the cylinder head includes a head body 100, the head body 100 may be a ridge-type or flat-bottom head structure, the head body 100 has an air inlet surface 110 and a sealing surface 120, wherein the air inlet surface 110 is disposed on a side surface of the head body 100, the sealing surface 120 is disposed on a bottom surface of the head body 100, and the sealing surface 120 is used for sealing and matching with a periphery of an opening of a cylinder and sealing the cylinder when the engine is assembled; in addition, the cylinder head further includes an intake port 200, the intake port 200 is disposed on the cover body 100, the intake port 200 has an intake end disposed on the intake surface 110 and an outlet end disposed on the sealing surface 120, when the cover body 100 is assembled on the engine, the outlet end is communicated with the cylinder, and air flow can enter the intake port 200 through the intake end on the intake surface 110 and be discharged into the cylinder from the outlet end on the sealing surface 120. In order to achieve the purpose of reducing the size of the cylinder head, the air inlet channels 200 can be provided in plurality, the air inlet channels 200 are mutually independent, air enters the cylinder from the air inlet channels 200 after being split outside the cylinder head, each air inlet channel 200 can be separately and correspondingly provided with an air inlet valve, the air inlet valve is used for controlling the opening and closing of the air inlet channel 200 so that air flow can enter the cylinder at proper time, after the structure is adopted, the air inlet of each air inlet channel 200 is mutually independent, therefore, the cover body 100 is not required to be provided with a retaining wall 20 structure for splitting the air flow in the air inlet channel 200, the air inlet channel 200 can be shortened according to the requirement without considering the structure of the retaining wall 20, and therefore, the structure is beneficial to reducing the size of the cylinder head and improving the light weight level and the fuel economy of the vehicle. In addition, in the present embodiment, the air inlet channel 200 is disposed in the cover body 100 in a region between the air inlet surface 110 and the sealing surface 120, and the air inlet channel 200 is curved and extended, so that the air flow can be more smoothly conveyed from the air inlet surface 110 to the sealing surface 120, and through the curved arrangement, the air flow can rotate along the curved direction, and the air flow can move downwards along the cylinder wall when entering the cylinder, thereby facilitating the formation of tumble. In addition, in order to improve the tumble effect in the cylinder, in the scheme, the two air inlets 200 are arranged in parallel and at intervals, and the extending directions of the two air inlets 200 are the same, so that the lengths of the two air inlets 200 are the same, and the airflows in the two air inlets 200 have similar flowing directions and flowing speeds when entering the cylinder, so that the mutual influence of airflows in the two air inlets 200 is prevented, the tumble effect is improved, the air inlet synchronism of the two air inlets 200 is also improved, and the air inlet performance is improved.
Further, the air intake duct 200 has a first air intake provided on the air intake surface 110 and a second air intake provided on the sealing surface 120, and the caliber of the first air intake is larger than that of the second air intake.
Specifically, as shown in fig. 2, in the present embodiment, the air intake duct 200 has a first air inlet and a second air inlet at opposite ends, wherein the first air inlet is disposed on the air intake surface 110, the second air inlet is disposed on the sealing surface 120, and the caliber of the first air inlet is larger than that of the second air inlet, so that when the air flow is conveyed from the first air inlet to the second air inlet, the flow velocity of the air flow is increased due to the reduction of the caliber, which is beneficial to improving the forming speed of the air flow when entering the cylinder, and improving the rolling effect.
Further, from the first air inlet to the second air inlet, the inner diameter of the air inlet channel 200 is changed in a decreasing state.
Specifically, as shown in fig. 2, in order to improve the air intake performance, in this embodiment, the inner diameter of the air intake duct 200 is gradually decreased from the first air intake to the second air intake, so that the blocking effect of the inner wall of the air intake duct 200 on the air flow flowing in the air intake duct 200 can be reduced, and the smoothness of the air flow flowing can be improved, thereby improving the air intake performance.
Further, the cover body 100 has an exhaust surface 130 disposed adjacent to the sealing surface 120, the cylinder head further includes two exhaust passages 300, and the two exhaust passages 300 are disposed on the cover body 100 and extend from the sealing surface 120 to the exhaust surface 130.
Further, the cylinder head further includes an exhaust valve provided in the head body 100, and each exhaust passage 300 is provided with an exhaust valve for opening and closing the exhaust passage 300.
Specifically, as shown in fig. 1, in the present embodiment, the cover body 100 further has an exhaust surface 130 disposed adjacent to the sealing surface 120, the exhaust surface 130 and the intake surface 110 are disposed on two opposite sides of the cover body 100, in addition, the cylinder head further includes two exhaust channels 300, the two exhaust channels 300 are disposed on the cover body 100 and extend from the sealing surface 120 to the exhaust surface 130, when the cover body 100 is mounted on an engine, the exhaust channels 300 are communicated with the cylinder, exhaust gas generated during operation in the cylinder can be exhausted through the two exhaust channels 300, and by setting the two exhaust channels 300, the flow rate during exhaust of the cylinder can be improved, and further the exhaust performance can be improved. In addition, in this embodiment, each exhaust passage 300 may be provided with an exhaust valve for controlling the opening and closing of the exhaust passage 300, so that exhaust gas can be discharged into the cylinder at a proper timing.
Further, the cover body 100 is further provided with a plurality of connection holes 400, and the plurality of connection holes 400 are annularly arranged.
Further, the plurality of connection holes 400 are provided at equal intervals.
As shown in fig. 1, in order to improve the sealing performance of the cylinder head to the cylinder, the cover body 100 is further provided with a plurality of connecting holes 400, each connecting hole 400 penetrates through the upper end face and the lower end face of the cover body 100, in the actual assembly process, the cylinder body provided with the cylinder is provided with mounting holes corresponding to the connecting holes 400, the cylinder head can be assembled with the cylinder body in a mode of connecting the connecting holes 400 and the mounting holes through bolts, the cylinder head can be tightly pressed on the cylinder body under the action of the bolts to realize the sealing of the cylinder, in addition, in order to further improve the sealing effect, the plurality of connecting holes 400 on the cover body 100 can be annularly arranged, the center of the ring can be a cylinder, and the sealing performance of the cover body 100 and the cylinder body at the position surrounding the cylinder can be improved by surrounding the cylinder for assembling. In addition, the plurality of connecting holes 400 may be disposed at equal intervals, so that the stress when the cover body 100 is connected to the cylinder block is more dispersed and uniform, which is beneficial to improving the connection reliability of the cover body 100 and the cylinder block.
The utility model also provides an engine, which comprises a cylinder block and a cylinder head, wherein the cylinder block is provided with a cylinder, the cylinder head is arranged on the cylinder block and is used for sealing the cylinder, and the specific structure of the cylinder head refers to the embodiment.
The utility model also provides a vehicle, which comprises a vehicle body and an engine, wherein the engine is arranged on the vehicle body and used as a power output part of the vehicle, the specific structure of the engine refers to the embodiment, and the vehicle adopts all the technical schemes of all the embodiments, so that the vehicle at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted.
The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (11)
1. A cylinder head, comprising:
The cover body is provided with an air inlet surface and a sealing surface which are adjacently arranged; and
An air inlet channel which is arranged on the cover body and extends between the air inlet surface and the sealing surface in a bending way; the air inlets are arranged in a plurality of ways, and the air inlets are arranged independently.
2. The cylinder head of claim 1, wherein a plurality of said intake ports are disposed parallel to one another.
3. The cylinder head as set forth in claim 1, wherein said intake port has a first intake port provided in said intake face and a second intake port provided in said sealing face, and wherein a caliber of said first intake port is larger than a caliber of said second intake port.
4. The cylinder head of claim 3, wherein an inner diameter of said intake port varies in a decreasing manner from said first intake port to said second intake port.
5. The cylinder head as set forth in claim 1, further comprising an intake valve provided to said head body, one of said intake valves being provided for each of said intake passages, said intake valve being configured to open and close said intake passage.
6. The cylinder head of claim 1, wherein said head body has an exhaust face disposed adjacent said sealing face, said cylinder head further comprising two exhaust passages, two of said exhaust passages being disposed in said head body and extending from said sealing face to said exhaust face.
7. The cylinder head as set forth in claim 6, further comprising exhaust valves provided in said head body, one of said exhaust valves being provided for each of said exhaust passages, said exhaust valves being configured to open and close said exhaust passages.
8. The cylinder head of claim 1, wherein the head body is further provided with a plurality of connection holes, the plurality of connection holes being annularly arranged.
9. The cylinder head of claim 8, wherein the plurality of connecting holes are equally spaced.
10. An engine, comprising:
a cylinder block provided with a cylinder;
a cylinder head provided to the cylinder block, the cylinder head closing the cylinder, the cylinder head being the cylinder head according to any one of claims 1 to 9.
11. A vehicle, characterized by comprising:
A vehicle body;
An engine provided in the vehicle body, the engine being the engine according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322667462.6U CN220909835U (en) | 2023-09-28 | 2023-09-28 | Cylinder head, engine and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322667462.6U CN220909835U (en) | 2023-09-28 | 2023-09-28 | Cylinder head, engine and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220909835U true CN220909835U (en) | 2024-05-07 |
Family
ID=90918779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322667462.6U Active CN220909835U (en) | 2023-09-28 | 2023-09-28 | Cylinder head, engine and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220909835U (en) |
-
2023
- 2023-09-28 CN CN202322667462.6U patent/CN220909835U/en active Active
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