CN211202135U - Water-cooled cylinder sleeve capable of improving heat dissipation effect and mounting structure thereof - Google Patents
Water-cooled cylinder sleeve capable of improving heat dissipation effect and mounting structure thereof Download PDFInfo
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- CN211202135U CN211202135U CN201922140287.9U CN201922140287U CN211202135U CN 211202135 U CN211202135 U CN 211202135U CN 201922140287 U CN201922140287 U CN 201922140287U CN 211202135 U CN211202135 U CN 211202135U
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- water
- heat dissipation
- cooled cylinder
- connecting portion
- cooled
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 82
- 230000000694 effects Effects 0.000 title claims abstract description 29
- 238000001816 cooling Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000000498 cooling water Substances 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims 4
- 230000000191 radiation effect Effects 0.000 claims 2
- 239000002826 coolant Substances 0.000 abstract description 6
- 239000003292 glue Substances 0.000 abstract description 4
- 238000013021 overheating Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a can improve radiating effect's water-cooled cylinder jacket and mounting structure thereof, can improve radiating effect's water-cooled cylinder jacket, for cylindric, its lateral wall is including the last connecting portion that meet in proper order along the axial, water cooling district and lower connecting portion, wherein, the water cooling district is equipped with the heat dissipation recess that is parallel to each other more than two rings that set up along circumference, the cross-section of heat dissipation recess is semi-circular, the degree of depth of heat dissipation recess is 20 ~ 30% of water cooling district wall thickness, the width of the notch of heat dissipation recess is 1.8 ~ 2.2 times of the heat dissipation recess degree of depth, the interval of two adjacent heat dissipation recesses is 0.8 ~ 1 times of the heat dissipation recess degree of depth. The utility model discloses can improve radiating effect's water-cooled cylinder jacket, on the basis of guaranteeing cylinder jacket intensity, through the setting of heat dissipation recess, increased the surface area of cylinder jacket with the coolant contact, improved cooling effect, reduced because of overheated diesel engine trouble such as causing "glue jar".
Description
Technical Field
The utility model relates to a can improve radiating effect's water-cooled cylinder jacket and mounting structure thereof belongs to water-cooled cylinder jacket field.
Background
Diesel engines are engines that burn diesel fuel to obtain energy release. The cylinder sleeve is a cylindrical part, is placed in the cylinder body hole of machine body, and is tightly pressed and fixed by cylinder cover, and the piston can make reciprocating motion in its internal hole, and its exterior is cooled by cooling water. When the diesel engine does work, high temperature and high pressure can be generated in a sealed volume formed among the piston, the piston ring, the cylinder sleeve and the cylinder cover, and partial heat can be conducted to cooling water on the periphery of the cylinder sleeve through the cylinder sleeve.
In the prior art, the outer surface of the cylinder sleeve is a smooth plane, so that the problem of poor heat dissipation exists, and the faults of the diesel engine such as cylinder sticking and the like are often caused by overheating.
SUMMERY OF THE UTILITY MODEL
The utility model provides a can improve radiating effect's water-cooled cylinder jacket and mounting structure thereof on the basis of guaranteeing cylinder jacket intensity, has increased the surface area of cylinder jacket with the coolant contact, has improved the cooling effect, has reduced because of overheated diesel engine trouble such as causing "glue jar".
For solving the technical problem, the utility model discloses the technical scheme who adopts as follows:
the utility model provides a can improve radiating effect's water-cooled cylinder jacket, it is cylindric, its lateral wall is including the last connecting portion that meet in proper order along the axial, water cooling district and lower connecting portion, wherein, the water cooling district is equipped with the heat dissipation recess that is parallel to each other more than two rings that set up along circumference, the cross-section of heat dissipation recess is semi-circular, the degree of depth of heat dissipation recess is 20 ~ 30% of water cooling district wall thickness, the width of the notch of heat dissipation recess is 1.8 ~ 2.2 times of heat dissipation recess degree of depth, the interval of two adjacent heat dissipation recesses is 0.8 ~ 1 times of heat dissipation recess degree of depth.
The circumference and the axial direction of the water-cooled cylinder sleeve are both indicated by the application.
According to the water-cooled cylinder sleeve capable of improving the heat dissipation effect, the surface area of the cylinder sleeve contacted with a cooling medium is increased through the arrangement of the heat dissipation groove, the cooling effect is improved, and the faults of a diesel engine such as cylinder sticking caused by overheating are reduced; the depth of the heat dissipation groove, the notch width and the interval are more critical, the size is not appropriate, not only the required heat dissipation effect cannot be achieved, and the strength of the cylinder sleeve cannot reach the standard, the applicant verifies through long-term practice that when the depth of the heat dissipation groove is 20-30% of the wall thickness of the water cooling area, the width of the notch of the heat dissipation groove is 1.8-2.2 times of the depth of the heat dissipation groove, and the interval between two adjacent heat dissipation grooves is 0.8-1 times of the depth of the heat dissipation groove, the strength requirement of the cylinder sleeve can be met, the ideal heat dissipation effect can be achieved, and the diesel engine faults of sticking the cylinder and the like caused by overheating are reduced.
In order to meet the heat dissipation requirement and also take the strength requirement into consideration, the heat dissipation groove has 6-10 circles and is arranged on one side, close to the upper connecting part, of the water cooling area.
In order to ensure the sealing performance of the heat dissipation groove, the distance between the heat dissipation groove and the upper connecting part is 4 +/-0.2 mm.
In order to better meet the requirements of strength and heat dissipation, the wall thickness of the water cooling area is 7.75 +/-0.2 mm, the depth of each heat dissipation groove is 1.8-2.2 mm, the width of each notch of each heat dissipation groove is 3.6-4.4 mm, and the distance between every two adjacent heat dissipation grooves is 1.6-2 mm.
In order to meet general requirements, the length of the upper connecting part is 16 +/-0.2 mm, the length of the water cooling area is 131.2 +/-0.2 mm, the length of the lower connecting part is 85.8 +/-0.2 mm, and a positioning shoulder is arranged between the water cooling area and the lower connecting part.
In order to reduce the collision in use and improve the air tightness in use, the periphery of the end part of the lower connecting part is a 30-degree chamfer with the side length of 2mm, and the inner periphery of the end part of the lower connecting part is a 45-degree chamfer with the side length of 0.5 mm.
In order to reduce abrasion, the inner surface of the water-cooled cylinder sleeve is provided with a flat cross-hatched pattern with an included angle of 135 +/-15 degrees.
Above-mentioned mounting structure of water-cooled cylinder jacket that can improve radiating effect, water-cooled cylinder jacket are installed in the organism, and the last connecting portion of water-cooled cylinder jacket and lower connecting portion all laminate with organism inner wall seamless, and the cylinder head pressfitting is fixed at the last connecting portion and organism tip of water-cooled cylinder jacket, form the cooling water chamber between the water-cooling district of water-cooled cylinder jacket and the organism inner wall.
In order to improve the installation tightness, a gasket is arranged between the positioning shoulder of the water-cooled cylinder sleeve and the inner wall of the machine body.
The technology not mentioned in the present invention refers to the prior art.
The utility model discloses can improve radiating effect's water-cooled cylinder jacket, on the basis of guaranteeing cylinder jacket intensity, through the setting of heat dissipation recess, increased the surface area of cylinder jacket with the coolant contact, improved cooling effect, reduced because of overheated diesel engine trouble such as causing "glue jar".
Drawings
FIG. 1 is a schematic structural view of a water-cooled cylinder liner with improved heat dissipation effect;
fig. 2 is a schematic view of the mounting structure of the water-cooled cylinder liner for improving the heat dissipation effect of the present invention;
in the figure, 1 is an upper connecting part, 2 is a water cooling area, 21 is a heat dissipation groove, 3 is a lower connecting part, 4 is a positioning shoulder, 5 is a machine body, 6 is a water-cooled cylinder sleeve, 7 is a gasket, and 8 is a cooling water cavity.
Detailed Description
For a better understanding of the present invention, the following examples are provided to further illustrate the present invention, but the present invention is not limited to the following examples.
Example 1
The utility model provides a can improve radiating effect's water-cooled cylinder jacket, it is cylindric, its lateral wall is including the last connecting portion that meet in proper order along the axial, water-cooling district and lower connecting portion, wherein, the water-cooling district is equipped with the heat dissipation recess that is parallel to each other more than two rings that set up along circumference, the cross-section of heat dissipation recess is semi-circular, the degree of depth of heat dissipation recess is 20%, 22%, 25%, 28% or 30% of water-cooling district wall thickness, the width of the notch of heat dissipation recess is 1.8 times, 2 times or 2.2 times of heat dissipation recess degree of depth, the interval of two adjacent heat dissipation recesses is 0.8 times, 0.9 times or 1 times of heat dissipation recess degree.
According to the water-cooled cylinder sleeve capable of improving the heat dissipation effect, the surface area of the cylinder sleeve contacted with a cooling medium is increased through the arrangement of the heat dissipation groove, the cooling effect is improved, and the faults of a diesel engine such as cylinder sticking caused by overheating are reduced; the depth of the heat dissipation groove, the notch width and the interval are more critical, the size is not appropriate, not only the required heat dissipation effect cannot be achieved, and the strength of the cylinder sleeve cannot reach the standard, the applicant verifies through long-term practice that when the depth of the heat dissipation groove is 20-30% of the wall thickness of the water cooling area, the width of the notch of the heat dissipation groove is 1.8-2.2 times of the depth of the heat dissipation groove, and the interval between two adjacent heat dissipation grooves is 0.8-1 times of the depth of the heat dissipation groove, the strength requirement of the cylinder sleeve can be met, the ideal heat dissipation effect can be achieved, and the diesel engine faults of sticking the cylinder and the like caused by overheating are reduced.
Example 2
On the basis of the embodiment 1, the following improvements are further made: in order to meet the heat dissipation requirement and also take the strength requirement into consideration, the heat dissipation groove has 6 circles, 8 circles or 10 circles, and the heat dissipation groove is arranged on one side, close to the upper connecting part, of the water cooling area.
Example 3
On the basis of the embodiment 2, the following improvements are further made: in order to ensure the sealing performance of the heat dissipation groove, the distance between the heat dissipation groove and the upper connecting part is 4 mm.
Example 4
On the basis of the embodiment 3, the following improvements are further made: in order to better meet the requirements of strength and heat dissipation, the wall thickness of the water cooling area is 7.75mm, the depth of each heat dissipation groove is 1.8mm, 2mm or 2.2mm, the width of each notch of each heat dissipation groove is 3.6mm, 3.8mm, 4mm or 4.2mm, and the distance between every two adjacent heat dissipation grooves is 1.6mm, 1.8mm or 2 mm.
Example 5
On the basis of the embodiment 4, the following improvements are further made: in order to meet general requirements, the length of the upper connecting part is 16mm, the length of the water cooling area is 131.2mm, the length of the lower connecting part is 85.8mm, and a positioning shoulder is arranged between the water cooling area and the lower connecting part; the periphery of the end part of the lower connecting part is a 30-degree chamfer with the side length of 2mm, and the inner periphery is a 45-degree chamfer with the side length of 0.5 mm. The inner surface of the water-cooled cylinder sleeve is provided with a platform reticulate pattern with an included angle of 135 degrees.
The mounting structure of the water-cooled cylinder liner capable of improving the heat dissipation effect comprises a water-cooled cylinder liner, an upper connecting portion and a lower connecting portion of the water-cooled cylinder liner are both seamlessly attached to the inner wall of the engine body, a cylinder cover is fixed to the upper connecting portion and the end portion of the engine body of the water-cooled cylinder liner in a pressing mode, and a cooling water cavity is formed between a water cooling area of the water-cooled cylinder liner and the inner wall of the engine body. In order to improve the installation tightness, a gasket is arranged between the positioning shoulder of the water-cooled cylinder sleeve and the inner wall of the machine body. After the engine body provided with the cylinder sleeves of all the cases is continuously used for 18 months, the heat dissipation effect is good, and diesel engine faults such as cylinder sticking and the like do not occur, and strength faults do not occur.
The water-cooled cylinder liner that can improve the radiating effect of above-mentioned each example, on the basis of guaranteeing cylinder liner intensity, through the setting of heat dissipation recess, increased the surface area of cylinder liner with the coolant contact, improved the cooling effect, reduced because of overheated diesel engine trouble such as "glue jar".
Claims (9)
1. The utility model provides a can improve radiating effect's water-cooled cylinder jacket, is cylindric, its characterized in that: the outer side wall of the water cooling groove comprises an upper connecting portion, a water cooling area and a lower connecting portion which are sequentially connected in the axial direction, wherein the water cooling area is provided with more than two circles of heat dissipation grooves which are parallel to each other and are arranged along the circumferential direction, the cross section of each heat dissipation groove is semicircular, the depth of each heat dissipation groove is 20-30% of the wall thickness of the water cooling area, the width of the notch of each heat dissipation groove is 1.8-2.2 times of the depth of each heat dissipation groove, and the distance between every two adjacent heat dissipation grooves is 0.8-1 times of the depth of each.
2. The water-cooled cylinder liner capable of improving heat dissipation according to claim 1, wherein: the heat dissipation groove has 6 ~ 10 circles, and the heat dissipation groove is established on the water-cooling district and is close to one side of last connecting portion.
3. The water-cooled cylinder liner capable of improving heat radiation effect according to claim 2, characterized in that: the interval between heat dissipation recess and the last connecting portion is 4 + -0.2 mm.
4. The water-cooled cylinder liner capable of improving heat radiation according to any one of claims 1 to 3, wherein: the wall thickness of the water cooling area is 7.75 +/-0.2 mm, the depth of each heat dissipation groove is 1.8-2.2 mm, the width of each notch of each heat dissipation groove is 3.6-4.4 mm, and the distance between every two adjacent heat dissipation grooves is 1.6-2 mm.
5. The water-cooled cylinder liner capable of improving heat radiation according to any one of claims 1 to 3, wherein: the length of the upper connecting part is 16 +/-0.2 mm, the length of the water cooling area is 131.2 +/-0.2 mm, the length of the lower connecting part is 85.8 +/-0.2 mm, and a positioning shoulder is arranged between the water cooling area and the lower connecting part.
6. The water-cooled cylinder liner capable of improving heat radiation according to any one of claims 1 to 3, wherein: the inner surface of the water-cooled cylinder sleeve is provided with a platform reticulate pattern with an included angle of 135 +/-15 degrees.
7. The water-cooled cylinder liner capable of improving heat radiation according to any one of claims 1 to 3, wherein: the periphery of the end part of the lower connecting part is a 30-degree chamfer with the side length of 2mm, and the inner periphery is a 45-degree chamfer with the side length of 0.5 mm.
8. The structure for mounting a water-cooled cylinder liner capable of improving a heat radiation effect according to any one of claims 1 to 7, wherein: the water-cooled cylinder jacket is installed in the organism, and the last connecting portion and the lower connecting portion of water-cooled cylinder jacket all laminate with the organism inner wall is seamless, and the cylinder head pressfitting is fixed at the last connecting portion and the organism tip of water-cooled cylinder jacket, forms the cooling water chamber between the water-cooled area and the organism inner wall of water-cooled cylinder jacket.
9. The mounting structure according to claim 8, wherein: a gasket is arranged between the positioning shoulder of the water-cooled cylinder sleeve and the inner wall of the machine body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922140287.9U CN211202135U (en) | 2019-12-04 | 2019-12-04 | Water-cooled cylinder sleeve capable of improving heat dissipation effect and mounting structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922140287.9U CN211202135U (en) | 2019-12-04 | 2019-12-04 | Water-cooled cylinder sleeve capable of improving heat dissipation effect and mounting structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211202135U true CN211202135U (en) | 2020-08-07 |
Family
ID=71857019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922140287.9U Active CN211202135U (en) | 2019-12-04 | 2019-12-04 | Water-cooled cylinder sleeve capable of improving heat dissipation effect and mounting structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211202135U (en) |
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2019
- 2019-12-04 CN CN201922140287.9U patent/CN211202135U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A water-cooled cylinder liner and its installation structure that can improve heat dissipation efficiency Granted publication date: 20200807 Pledgee: Bank of Jiangsu Co.,Ltd. Xuzhou Branch Pledgor: JIANGSU CHANGXING MANUFACTURE OF POWER MACHINERY CO.,LTD. Registration number: Y2024980009541 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |