CN115163324B - Cylinder assembly and internal combustion engine - Google Patents
Cylinder assembly and internal combustion engine Download PDFInfo
- Publication number
- CN115163324B CN115163324B CN202211043010.4A CN202211043010A CN115163324B CN 115163324 B CN115163324 B CN 115163324B CN 202211043010 A CN202211043010 A CN 202211043010A CN 115163324 B CN115163324 B CN 115163324B
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- cooling
- positioning belt
- cylinder
- water outlet
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 238000001816 cooling Methods 0.000 claims abstract description 86
- 238000009434 installation Methods 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 9
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 230000000875 corresponding effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/16—Cylinder liners of wet type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a cylinder assembly and an internal combustion engine, which comprises a machine body and a cylinder sleeve, wherein the machine body comprises a mounting hole, the cylinder sleeve is sleeved in the mounting hole, and a water inlet channel and a water outlet channel which penetrate through are sequentially formed in the side wall of the machine body; according to the installation direction of the cylinder sleeve, a first cooling channel, a radial positioning belt and a second cooling channel are sequentially arranged on the outer wall of the cylinder sleeve, and the position of the first cooling channel is set to be the position which can correspond to the piston ring. According to the cylinder assembly cooling water, the first cooling channel and the second cooling channel flow along the installation direction, and the water quantity of the cooling water at the position of the piston ring and the contact area of the cooling water are increased from the installation direction, so that the cooling effect of the cylinder sleeve is provided, and the overrun of the temperature of the cylinder sleeve is avoided. Further, the cavitation erosion phenomenon of the cylinder sleeve is reduced.
Description
Technical Field
The invention relates to the technical field of internal combustion engines, in particular to a cylinder assembly and an internal combustion engine.
Background
At present, a cooling channel of the cylinder sleeve is cast, in order to ensure the cooling of a ring position of a piston at the upper part of the cylinder sleeve, the cooling channel is arranged close to a supporting shoulder part of the cylinder sleeve, cooling water enters the cooling channel from a water inlet channel of a machine body, and enters a water outlet channel of the machine body after the periphery of the cooling channel is cooled, so that the cooling effect of the cylinder sleeve is poor, and cavitation of the cylinder sleeve is further caused.
Therefore, how to improve the cooling effect of the cylinder liner is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention provides a cylinder assembly and an internal combustion engine, which are used for improving the cooling effect of a cylinder sleeve.
In order to achieve the above object, the present invention provides the following technical solutions:
in a first aspect, the present invention provides a cylinder assembly comprising a machine body and a cylinder liner, wherein:
the machine body comprises a mounting hole, the cylinder sleeve is sleeved in the mounting hole, and a water inlet channel and a water outlet channel which penetrate through are sequentially formed in the side wall of the machine body according to the mounting direction of the cylinder sleeve;
according to the mounting direction of the cylinder sleeve, a first cooling channel, a radial positioning belt and a second cooling channel are sequentially arranged on the outer side wall of the cylinder sleeve, and the position of the first cooling channel is set to be a position which can correspond to a ring of the piston;
the water inlet channel is communicated with the first cooling channel, the water outlet channel is communicated with the second cooling channel, and the radial positioning belt is provided with a communication channel which is communicated with the first cooling channel and the second cooling channel.
In some possible embodiments of the present invention, the water outlet channel includes a first water outlet channel and a second water outlet channel communicating with the first water outlet channel, wherein a first end of the first water outlet channel communicates with the second cooling channel, a second end of the first water outlet channel communicates with a first end of the second water outlet channel, and a second end of the second water outlet channel is located on an end face of the machine body.
In some possible embodiments of the present invention, the first water outlet channel extends along a radial direction of the machine body, and the second water outlet channel extends along an axial direction of the machine body.
In some possible embodiments of the present invention, the machine body is provided with a bleed hole, the bleed hole communicates the second water outlet channel with the first cooling channel, and the diameter of the bleed hole is smaller than that of the second water outlet channel.
In some possible embodiments of the invention, the bleed holes extend in a radial direction of the body.
In some possible embodiments of the invention, the water inlet channel extends in a radial direction of the machine body.
In some possible embodiments of the present invention, the radial positioning belt includes a plurality of radial positioning portions extending in an axial direction, the plurality of radial positioning portions being circumferentially arranged on the circumferential surface of the cylinder liner, and a communication channel being formed between adjacent radial positioning portions.
In some possible embodiments of the present invention, a circumferential positioning band is further disposed on an outer sidewall of the cylinder liner, and the circumferential positioning band is located below the second cooling channel along an installation direction of the cylinder liner, and the circumferential positioning band includes a plurality of circumferential positioning portions extending in a circumferential direction, and the plurality of circumferential positioning portions are disposed on a circumferential surface of the cylinder liner in an axial direction.
In some possible embodiments of the invention, according to the installation direction of the cylinder sleeve, a first support shoulder, a first positioning belt and a second positioning belt are sequentially arranged on the inner side wall of the machine body, the first positioning belt is matched with the radial positioning belt, and the second positioning belt is matched with the circumferential positioning belt;
the outer side wall of the cylinder sleeve is provided with a second supporting shoulder matched with the first supporting shoulder, the first positioning belt extends from the first supporting shoulder to the second positioning belt, the water inlet channel is arranged at the position, close to the first supporting shoulder, of the first positioning belt, and the water outlet channel is arranged at the position, close to the second positioning belt, of the first positioning belt; and sealing rings matched with the second positioning belts are arranged between the adjacent circumferential positioning parts.
In a second aspect, the invention provides an internal combustion engine comprising a piston and a cylinder assembly according to any one of the preceding claims, the piston being mounted in a cylinder liner in the cylinder assembly, and a ring of the piston corresponding to a first cooling gallery in the cylinder assembly.
According to the technical scheme, the cooling water enters the first cooling channel from the water inlet channel and cools the first cooling channel, then enters the second cooling channel through the communication channel, cools the structure at the second cooling channel, and finally is discharged through the water outlet channel. Therefore, the cooling water of the cylinder assembly flows from the first cooling channel to the second cooling channel along the installation direction, and the water quantity of the cooling water at the position of the piston ring and the contact area of the cooling water are increased from the installation direction, so that the cooling effect of the cylinder sleeve is provided, and the overrun of the temperature of the cylinder sleeve is avoided. Further, the cavitation erosion phenomenon of the cylinder sleeve is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is apparent that the drawings in the following description are only some examples or embodiments of the present invention, and it is possible for those of ordinary skill in the art to obtain other drawings from the provided drawings without inventive effort, and to apply the present invention to other similar situations from the provided drawings. Unless otherwise apparent from the context of the language or otherwise specified, like reference numerals in the figures refer to like structures or operations.
FIG. 1 is a schematic cross-sectional view of a cylinder assembly according to one example of the present invention;
fig. 2 is a schematic front view of a cylinder liner in a cylinder assembly according to an example of the present invention;
wherein 100 is a machine body, 200 is a cylinder sleeve;
101 is a first support shoulder, 102 is a first positioning belt, 103 is a second positioning belt, 104 is a water inlet channel, 105 is a water outlet channel, 106 is a vent hole, 1051 is a first water outlet channel, 1052 is a second water outlet channel;
201 is a second support shoulder, 202 is a first cooling channel, 203 is a radial positioning belt, 204 is a second cooling channel, 205 is a communication channel, 206 is a circumferential positioning belt, 2031 is a radial positioning portion, 2061 is a circumferential positioning portion, 2062 is a sealing ring.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. The described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a cylinder assembly and an internal combustion engine, which are used for improving the cooling effect of a cylinder sleeve. The following is a detailed description of several embodiments.
Referring to fig. 1 to 2, a cylinder assembly according to an example of the present invention includes a body 100 and a cylinder liner 200, wherein:
the machine body 100 comprises a mounting hole, the cylinder sleeve 200 is sleeved in the mounting hole, and a water inlet channel 104 and a water outlet channel 105 which penetrate through are sequentially formed in the side wall of the machine body 100 according to the mounting direction of the cylinder sleeve 200; according to the installation direction of the cylinder liner 200, a first cooling channel 202, a radial positioning belt 203 and a second cooling channel 204 are sequentially arranged on the outer side wall of the cylinder liner 200, and the position of the first cooling channel 202 is set to be capable of corresponding to the position of a piston ring; the water inlet passage 104 communicates with the first cooling passage 202, the water outlet passage 105 communicates with the second cooling passage 204, and the radial positioning belt 203 has a communication passage 205 that communicates with the first cooling passage 202 and the second cooling passage 204.
In the cylinder assembly according to the embodiment of the present invention, cooling water enters the first cooling channel 202 from the water inlet channel 104, cools the first cooling channel, then enters the second cooling channel 204 through the communication channel 205, cools the structure at the second cooling channel 204, and finally is discharged through the water outlet channel 105. It can be seen that in the cylinder assembly of the present invention, the cooling water first cooling passage 202 to the second cooling passage 204 flow along the installation direction, and the amount of cooling water and the contact area with the cooling water at the position of the cylinder liner 200 corresponding to the piston ring are increased from the installation direction, thereby providing the cooling effect of the cylinder liner 200 and avoiding the temperature overrun of the cylinder liner 200. Further, occurrence of cavitation of the cylinder liner 200 is reduced.
The first end of the water outlet channel 105 corresponds to the second cooling channel 204, and the second end of the water outlet channel 105 is disposed on the end surface of the machine body 100. The first end of the water outlet channel 105 is arranged obliquely to the second end of the water outlet channel 105. As shown in fig. 1, the water outlet channel 105 includes a first water outlet channel 1051 and a second water outlet channel 1052 communicating with the first water outlet channel 1051, wherein a first end of the first water outlet channel 1051 communicates with the second cooling channel 204, a second end of the first water outlet channel 1051 communicates with a first end of the second water outlet channel 1052, and a second end of the second water outlet channel 1052 is located at an end surface of the machine body 100. The first end of the first water outlet channel 1051 is a first end of the water outlet channel 105 and the second end of the second water outlet channel 1052 is a second end of the water outlet channel 105.
The axes of the first water outlet channel 1051 and the second water outlet channel 1052 are arranged at an angle in the range: [0 °,180 °). In the drawing, the angle is 90 °, and at this time, the first water outlet passage 1051 extends in the radial direction of the machine body 100, and the second water outlet passage 1052 extends in the axial direction of the machine body 100.
In addition, the water intake passage 104 and the water outlet passage 105 are arranged opposite to each other on the machine body 100, and therefore, the cooling water in the first cooling passage 202 flows from a portion near the water intake passage 104 to a portion opposite to the water intake passage 104, that is, circumferentially surrounds the outer circumference of the cylinder liner 200; the cooling water in the second cooling passage 204 flows from a portion opposite to the water outlet passage 105 to a portion close to the water outlet passage 105, that is, circumferentially surrounds the outer circumference of the cylinder liner 200, which corresponds to an increase in the circulation length of the cooling water, thereby improving the cooling effect.
It should be noted that, the first cooling channel 202 and/or the second cooling channel 204 are/is an annular groove structure disposed on the circumferential surface of the cylinder liner 200, and the bottom of the groove is a smooth curved surface structure.
In order to further reduce cavitation, the machine body 100 is provided with a bleed hole 106, the bleed hole 106 communicates the second water outlet channel 1052 with the first cooling channel 202, and the diameter of the bleed hole is smaller than that of the water outlet channel 105. The air release holes 106 are arranged opposite to the water inlet channel 104, when the first cooling channel 202 enters the cooling water, the internal gas of the first cooling channel 202 is discharged to the second water outlet channel 1052 through the air release holes 106, so that the gas residue in the first cooling channel 202 is reduced, and the cavitation phenomenon is further reduced.
The bleed hole 106 is used to communicate the second water outlet passage 1052 with the first cooling passage 202, and to discharge the gas in the first cooling passage 202. The structure of the second water outlet passage 1052 and the first cooling passage 202 can be understood as the bleed holes 106, and the bleed holes 106 preferably extend in the radial direction of the body 100.
The water intake passage 104 functions to introduce cooling water into the first cooling passage 202 and cool the cylinder liner 200. The first end of the water inlet channel 104 is positioned on the peripheral surface of the machine body 100, and the second end of the water inlet channel 104 is communicated with the first cooling channel 202; or the first end of the water inlet channel 104 is located on the end surface of the machine body 100, and the second end of the water inlet channel 104 is communicated with the first cooling channel 202. In the present embodiment, the first end of the water inlet channel 104 is located on the peripheral surface of the machine body 100, and the second end is in communication with the first cooling channel 202. The first end of the water inlet passage 104 and the second end of the water inlet passage 104 may extend, but are not limited to, in a radial direction of the body 100.
To further optimize the solution described above, the water outlet channel 105 and/or the water inlet channel 104 are machined structures. The machined structure does not need to consider demolding as compared to the cast structure, and thus the size of the machined structure can be relatively small, thereby improving the rigidity of the machine body 100.
The radial positioning belt 203 is adapted to the first positioning belt 102 to achieve radial positioning of the cylinder liner 200. In an embodiment, the structure capable of achieving radial positioning can be understood as the radial positioning belt 203.
In some examples of the present invention, as shown in fig. 2, the radial positioning belt 203 includes a plurality of radial positioning portions 2031 extending in the axial direction, the plurality of radial positioning portions 2031 are circumferentially arranged on the circumferential surface of the cylinder liner 200, and one communication channel 205 is formed between adjacent radial positioning portions 2031. A communication channel 205 is formed between adjacent radial positioning portions, so that cooling water in the first cooling channel 202 can enter the second cooling channel 204 through the communication channel 205, and at the same time, since the communication channels 205 of the radial positioning belt 203 are axially arranged around the cylinder liner 200, the cooling effect of the cylinder liner 200 can be improved.
In an embodiment, a circumferential positioning band 206 is further provided on the outer sidewall of the cylinder liner 200, and the circumferential positioning band 206 is located below the second cooling channel 204 in the installation direction of the cylinder liner 200. Alternatively, the circumferential positioning belt 206 includes a plurality of circumferentially extending circumferential positioning portions 2061, the plurality of circumferential positioning portions 2061 being axially arranged at the circumferential surface of the cylinder liner 200.
Further, in order to optimize the above technical solution, a seal ring 2062 is provided between adjacent circumferential positioning portions 2061.
According to the installation direction, a first supporting shoulder 101, a first positioning belt 102 matched with a radial positioning belt 203 and a second positioning belt 103 matched with a circumferential positioning belt 206 are sequentially arranged on the inner side wall of the machine body 100 (i.e. on the hole wall of the installation hole), the cylinder liner 200 is provided with a second supporting shoulder 201 matched with the first supporting shoulder 101, the first positioning belt 102 extends from the first supporting shoulder 101 to the second positioning belt 103, the water inlet channel 104 is arranged at a position of the first positioning belt 102 close to the first supporting shoulder 101, and the water outlet channel 105 is arranged at a position of the first positioning belt 102 close to the second positioning belt 103.
Positioning of the cylinder liner 200 in the mounting hole of the machine body 100 is achieved by the cooperation of the first support shoulder 101 and the second support shoulder 201 on the one hand; on the other hand, this is achieved by the cooperation of the radial positioning belt 203 with the first positioning belt 102 interposed between the first cooling passage 202 and the second cooling passage 204. Compared with the prior art, the positioning mode is increased, which is equivalent to reducing the acting force of the first support shoulder 101 and the second support shoulder 201, micro-abrasion is not easy to occur between the first support shoulder 101 and the second support shoulder 201, and the influence on the rigidity of the cylinder liner 200 is reduced.
The sealing ring 2062 is matched with the second positioning belt 103, and the sealing ring 2062 can ensure the tightness of the second cooling channel 204.
In a second aspect, the present invention provides an internal combustion engine comprising a piston and a cylinder assembly according to any one of the preceding claims, the piston being mounted within a cylinder liner 200 in the cylinder assembly, and the piston-ring being positioned to correspond to the position of a first cooling gallery 202 in the cylinder assembly. Since the cylinder assembly has the above advantages, the internal combustion engine including the cylinder assembly has corresponding effects, and will not be described herein.
For convenience of description, only a portion related to the present invention is shown in the drawings. Embodiments of the invention and features of the embodiments may be combined with each other without conflict.
It is to be understood that the terms "system," "apparatus," "unit," and/or "module" as used herein are one means for distinguishing between different components, elements, parts, portions, or assemblies at different levels. However, if other words can achieve the same purpose, the word can be replaced by other expressions.
As used in the specification and in the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. The inclusion of an element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises an element.
Wherein, in the description of the embodiments of the present invention, unless otherwise indicated, "/" means or, for example, a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, in the description of the embodiments of the present invention, "plurality" means two or more than two.
The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying 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 one or more such feature.
A flowchart is used in the present invention to describe the operations performed by a system according to embodiments of the present invention. It should be appreciated that the preceding or following operations are not necessarily performed in order precisely. Rather, the steps may be processed in reverse order or simultaneously. Also, other operations may be added to or removed from these processes.
The above description is only illustrative of the preferred embodiments of the present invention and the technical principles applied, and is not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. The scope of the invention is not limited to the specific combination of the above technical features, but also covers other technical features formed by any combination of the above technical features or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present invention (but not limited to) having similar functions are replaced with each other.
Claims (9)
1. A cylinder assembly comprising a machine body (100) and a cylinder liner (200), wherein:
the machine body (100) comprises a mounting hole, the cylinder sleeve (200) is sleeved in the mounting hole, and a water inlet channel (104) and a water outlet channel (105) which penetrate through are sequentially formed in the side wall of the machine body (100) according to the mounting direction of the cylinder sleeve (200);
according to the installation direction of the cylinder sleeve (200), a first cooling channel (202), a radial positioning belt (203) and a second cooling channel (204) are sequentially arranged on the outer side wall of the cylinder sleeve (200), and the position of the first cooling channel (202) is set to be a position which can correspond to a ring of a piston;
the water inlet channel (104) is communicated with the first cooling channel (202), the water outlet channel (105) is communicated with the second cooling channel (204), and the radial positioning belt (203) is provided with a communication channel (205) which is communicated with the first cooling channel (202) and the second cooling channel (204);
the radial positioning belt (203) comprises a plurality of radial positioning parts (2031) extending along the axial direction, the radial positioning parts (2031) are circumferentially arranged on the circumferential surface of the cylinder liner (200), and one communication channel (205) is formed between the adjacent radial positioning parts (2031).
2. The cylinder assembly of claim 1, wherein the outlet channel (105) comprises a first outlet channel (1051) and a second outlet channel (1052) in communication with the first outlet channel (1051), wherein a first end of the first outlet channel (1051) is in communication with the second cooling channel (204), a second end of the first outlet channel (1051) is in communication with a first end of the second outlet channel (1052), and a second end of the second outlet channel (1052) is located at an end face of the body (100).
3. The cylinder assembly of claim 2, wherein the first water outlet passage (1051) extends in a radial direction of the body (100), and the second water outlet passage (1052) extends in an axial direction of the body (100).
4. The cylinder assembly as claimed in claim 2, wherein a bleed hole (106) is provided in the body (100), the bleed hole (106) communicating the second water outlet passage (1052) with the first cooling passage (202), the bleed hole (106) having a smaller diameter than the second water outlet passage (1052).
5. The cylinder assembly of claim 4, wherein the bleed holes (106) extend in a radial direction of the block (100).
6. The cylinder assembly according to claim 1, characterized in that the water inlet channel (104) extends in a radial direction of the machine body (100).
7. The cylinder assembly according to any one of claims 1 to 6, characterized in that a circumferential positioning belt (206) is further provided on an outer sidewall of the cylinder liner (200), and in the mounting direction of the cylinder liner (200), the circumferential positioning belt (206) is located below the second cooling passage (204), the circumferential positioning belt (206) includes a plurality of circumferential positioning portions (2061) extending in the circumferential direction, and the plurality of circumferential positioning portions (2061) are arranged on the circumferential surface of the cylinder liner (200) in the axial direction.
8. The cylinder assembly according to claim 7, wherein a first support shoulder (101), a first positioning belt (102) and a second positioning belt (103) are sequentially arranged on an inner side wall of the machine body (100) according to an installation direction of the cylinder liner (200), the first positioning belt (102) is matched with the radial positioning belt (203), and the second positioning belt (103) is matched with the circumferential positioning belt (206);
the outer side wall of the cylinder sleeve (200) is provided with a second supporting shoulder (201) which is matched with the first supporting shoulder (101), the first positioning belt (102) extends from the first supporting shoulder (101) to the second positioning belt (103), the water inlet channel (104) is arranged at a position, close to the first supporting shoulder (101), of the first positioning belt (102), and the water outlet channel (105) is arranged at a position, close to the second positioning belt (103), of the first positioning belt (102); a sealing ring (2062) matched with the second positioning belt (103) is arranged between the adjacent circumferential positioning parts (2061).
9. An internal combustion engine, characterized by comprising a piston and a cylinder assembly according to any one of claims 1-8, the piston being mounted in a cylinder liner (200) in the cylinder assembly, and the position of a ring of the piston corresponding to the position of a first cooling channel (202) in the cylinder assembly.
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| CN202211043010.4A CN115163324B (en) | 2022-08-29 | 2022-08-29 | Cylinder assembly and internal combustion engine |
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| CN202211043010.4A CN115163324B (en) | 2022-08-29 | 2022-08-29 | Cylinder assembly and internal combustion engine |
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| CN115163324A CN115163324A (en) | 2022-10-11 |
| CN115163324B true CN115163324B (en) | 2024-04-16 |
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