CN214304068U - Cylinder for chain saw - Google Patents
Cylinder for chain saw Download PDFInfo
- Publication number
- CN214304068U CN214304068U CN202022788195.4U CN202022788195U CN214304068U CN 214304068 U CN214304068 U CN 214304068U CN 202022788195 U CN202022788195 U CN 202022788195U CN 214304068 U CN214304068 U CN 214304068U
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- China
- Prior art keywords
- cylinder
- spark plug
- chain saw
- fins
- plug hole
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- 230000002000 scavenging effect Effects 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000002485 combustion reaction Methods 0.000 claims abstract description 8
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
A cylinder for a chain saw comprises a cylinder body, cooling fins, an exhaust port, an air inlet, an air scavenging passage, a combustion chamber and a spark plug, wherein the spark plug comprises a spark plug hole, the spark plug hole forms an inclined surface, and a layer of cooling fins is arranged on the periphery of the spark plug hole and in the horizontal direction of the inclined surface; the radiating fins arranged in the horizontal direction of the inclined plane are provided with radiating strips in the middle, and all the radiating strips are uniformly arranged; the area of the radiating fins is increased, and meanwhile, the temperature of the engine is reduced; the gas distribution phase is optimized, the torque is increased, and the working strength of the chain saw is increased; the compression ratio is improved, and the working efficiency of the chain saw is improved by at least 15 percent.
Description
Technical Field
The utility model relates to a cylinder structure, especially a cylinder structure for chain saw.
Background
The cylinder is the main body of the engine, the working condition of the cylinder is quite severe, the pressure and temperature change rapidly and the piston friction strongly in the combustion process, the temperature and the exhaust gas volume of the cylinder are large, and a good heat dissipation function is needed; the cylinder works by the scavenging port and the exhaust port on the cylinder wall to finish the air inlet and exhaust processes, and the working efficiency can be improved by changing the air distribution phase.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above-mentioned problem and providing a cylinder for chain saw, use increase fin area and change distribution phase place, improved cylinder radiating effect and exhaust efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a cylinder for a chain saw comprises a cylinder body, cooling fins, an exhaust port, an air inlet, an air scavenging channel, a combustion chamber and a spark plug, wherein the spark plug comprises a spark plug hole, the spark plug hole forms an inclined surface, and a layer of cooling fins is arranged on the periphery of the spark plug hole and in the horizontal direction of the inclined surface.
Furthermore, the radiating fins arranged in the horizontal direction of the inclined plane are provided with radiating strips in the middle, and all the radiating strips are uniformly arranged.
Furthermore, the lower layer of the radiating fins arranged in the horizontal direction of the inclined plane is provided with a layer of radiating fins with the same length, and the length of the radiating fins arranged in the horizontal direction of the inclined plane is larger on one side of the exhaust port than that of the other layers of radiating fins, so that the area of the radiating fins is increased, and the radiating efficiency is improved.
Further, the height of the exhaust passage is 31.57 cm.
Further, the distance from the upper end of the exhaust port to the lower end of the scavenging passage is 36.14cm, and the distance from the upper end of the air inlet to the lower end of the scavenging passage is 24.59 cm.
Further, the distance from the bottom end of the combustion chamber to the bottom end of the scavenging passage is 60.4 cm.
Further, the angle of the plug hole is set to 14 degrees.
In some preferred embodiments the cylinder is selected to be a 58 size cylinder.
The utility model has the advantages that: (1) the area of the radiating fins is increased, and meanwhile, the temperature of the engine is reduced; (2) the gas distribution phase is optimized, the torque is increased, and the working strength of the chain saw is increased; (3) the compression ratio is improved, and the working efficiency of the chain saw is improved by at least 15 percent.
Drawings
Fig. 1 is a schematic view of a conventional cylinder.
Fig. 2 is a schematic diagram of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, and it should be noted that the embodiments are only specific illustrations of the present invention, and should not be considered as limitations of the present invention, and the purpose of the embodiments is to make those skilled in the art better understand and reproduce the technical solutions of the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims.
The invention is further described with reference to the following detailed description and accompanying drawings:
taking a cylinder of type 58 as an example, as shown in fig. 1-3, the cylinder 10 for the chain saw comprises a cylinder body 1, a heat radiating fin 2, an exhaust port 3, an air inlet 4, a scavenging passage 5, a combustion chamber 6 and a spark plug 7, wherein the spark plug 7 comprises a spark plug hole 71, the spark plug hole 71 forms an inclined plane, and a layer of heat radiating fin 21 is arranged on the periphery of the spark plug hole 71 in the horizontal direction of the inclined plane.
Further, the fins 21 provided in the horizontal direction on the inclined surface have radiating ribs 22 provided in the middle, and the radiating ribs 22 are arranged uniformly.
Furthermore, a layer of radiating fins 23 with the same length is arranged below the radiating fins 21 arranged in the horizontal direction of the inclined plane, and the length of the radiating fins 21 arranged in the horizontal direction of the inclined plane is larger than that of the other layers of radiating fins on the side of the air outlet;
as shown in fig. 1, compared with the conventional cylinder, the present invention has the advantages that the spark plug hole 71 is arranged around the cylinder body and the inclined plane is horizontally arranged with the one layer of the cooling fins 21 as a new layer, the length of the cooling fins is increased, the area of the cooling fins is increased, and the heat dissipation efficiency is improved.
Further, the height of the scavenging duct 5 is 31.57 cm.
Further, the distance from the upper end of the exhaust port 3 to the lower end of the scavenging passage 5 is 36.14cm, and the distance from the upper end of the intake port 4 to the lower end of the scavenging passage 5 is 24.59 cm.
Further, the distance from the bottom end of the combustion chamber 6 to the bottom end of the scavenging duct 5 is 60.4 cm.
Further, the angle of the plug hole 71 is set to 14 degrees, such as 60 degrees in the conventional cylinder of fig. 1, so that the power and stability of the cylinder are improved by reducing the angle of the plug hole.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
Claims (7)
1. A cylinder for a chain saw comprises a cylinder body, cooling fins, an exhaust port, an air inlet, an air scavenging passage, a combustion chamber and a spark plug, and is characterized in that the spark plug comprises a spark plug hole, the spark plug hole forms an inclined surface, and a layer of cooling fins is arranged on the periphery of the spark plug hole and in the horizontal direction of the inclined surface.
2. The cylinder for the chain saw as claimed in claim 1, wherein the heat radiating fins arranged in the horizontal direction of the inclined surface are provided with heat radiating strips at the middle part, and the heat radiating strips are uniformly arranged.
3. The cylinder for a chain saw as claimed in claim 2, wherein the inclined surface is formed with a plurality of fins having the same length in a lower layer, and the length of the fins in the horizontal direction is greater on the exhaust port side than that of the fins in the other layers.
4. A cylinder for a chain saw as claimed in claim 1, wherein the scavenging duct has a height of 31.57 cm.
5. A cylinder for a chain saw as claimed in claim 1, wherein the distance from the upper end of the exhaust port to the lower end of the scavenging passage is 36.14cm, and the distance from the upper end of the intake port to the lower end of the scavenging passage is 24.59 cm.
6. A cylinder for a chain saw as claimed in claim 1, wherein the distance from the bottom end of the combustion chamber to the bottom end of the scavenging duct is 60.4 cm.
7. A cylinder for a chain saw as defined in claim 1, wherein the angle of the spark plug hole is set to 14 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022788195.4U CN214304068U (en) | 2020-11-27 | 2020-11-27 | Cylinder for chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022788195.4U CN214304068U (en) | 2020-11-27 | 2020-11-27 | Cylinder for chain saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214304068U true CN214304068U (en) | 2021-09-28 |
Family
ID=77844199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022788195.4U Active CN214304068U (en) | 2020-11-27 | 2020-11-27 | Cylinder for chain saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214304068U (en) |
-
2020
- 2020-11-27 CN CN202022788195.4U patent/CN214304068U/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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A cylinder for a chain saw Effective date of registration: 20220824 Granted publication date: 20210928 Pledgee: Zhejiang Wuyi Rural Commercial Bank Co.,Ltd. Shuxi sub branch Pledgor: Zhejiang Huarui Tools Co.,Ltd. Registration number: Y2022330001896 |