CN2881122Y - Internal combustion engine cylinder liner - Google Patents
Internal combustion engine cylinder liner Download PDFInfo
- Publication number
- CN2881122Y CN2881122Y CN 200620110167 CN200620110167U CN2881122Y CN 2881122 Y CN2881122 Y CN 2881122Y CN 200620110167 CN200620110167 CN 200620110167 CN 200620110167 U CN200620110167 U CN 200620110167U CN 2881122 Y CN2881122 Y CN 2881122Y
- Authority
- CN
- China
- Prior art keywords
- combustion engine
- internal combustion
- cylinder sleeve
- cylinder
- cylinder liner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses an internal combustion engine cylinder liner which is fixed in the body of an internal combustion engine cylinder; wherein some concaves are arranged from the upper dead centre to the bottom dead centre on the inside surface of the cylinder liner, the depth of each concave is less than or equal to 0.005 millimeters, the diameter of the top of each concave is less than or equal to 0.03 millimeters, and the distance between each two neighboring concaves is 0.6 millimeters. The utility model can improve the quality of lubrication, reduce the abrasion of the internal combustion engine cylinder liner and the piston, and reduce the consumption of engine oil and the amounted of exhaust gas.
Description
Technical field
The utility model relates to field of internal combustion engine, particularly a kind of cylinder of internal combustion engine cover.
Background technique
The cylinder sleeve smooth interior surfaces of internal-combustion engine now, lubricant oil should not be kept on the cylinder sleeve internal surface, and the lubricant oil skewness, and the friction of piston and cylinder sleeve, lubrication problem are to become one of subject matter of internal combustion engine development.Piston is to-and-fro motion in cylinder sleeve, accumulates a large amount of heats easily.When temperature raise, the lubricant oil viscosity reduced, and lubricant film is spaced easily, piston and cylinder sleeve dry friction occurs and cause serious wearing and tearing, influence the working life of piston and cylinder sleeve, even produce the phenomenon of burn oil, the consumption of machine oil is increased, strengthened toxic emission simultaneously.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist at the cylinder of internal combustion engine cover, provides a kind of and can improve lubricating quality, reduces cylinder of internal combustion engine cover and wearing for piston, reduces the cylinder of internal combustion engine cover of oil consumption and toxic emission.
The purpose of this utility model is achieved in that cylinder sleeve is fixed in the IC engine cylinder body, is provided with some pits at the piston motion top dead center of cylinder sleeve to the internal surface in lower dead center zone.Pit depth≤0.005mm, pit mouth diameters≤0.03mm, the spacing between the adjacent pit is 0.6mm.Some pits shape in the shape of a spiral are distributed in the cylinder sleeve internal surface, and pitch is 0.6mm.
Owing to adopted such scheme, be provided with some small pits at the piston motion top dead center of cylinder sleeve to the internal surface in lower dead center zone, lubricant oil can be sticked be stored in these small pits, set up dynamically lubricating with piston at the cylinder sleeve internal surface thus, under the motor nominal operating condition, cylinder sleeve piston ring friction pair can be separated by oil film in whole stroke, therefore cylinder of internal combustion engine cover and wearing for piston have been reduced, thereby avoided piston ring and cylinder sleeve, and the toxic emission problem that causes owing to oil firing because of the overheated burn oil that causes that rubs.Because these small pit curls evenly distribute, and lubricant oil is evenly distributed in cylinder sleeve, piston ring contacts with the oil film of pit surface during work, has improved lubricating quality.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is a structural representation of the present utility model,
Fig. 2 is the partial enlarged drawing at Figure 1A place.
In the accompanying drawing, 1 is pit, and 2 is cylinder sleeve, and 3 is cylinder block.
Embodiment
Referring to Fig. 1, Fig. 2, during the cast IC engine cylinder body, fixedly be set in the IC engine cylinder body 3 cylinder sleeve 2 one-body molded.Be provided with some small pits 1 at the piston motion top dead center of cylinder sleeve 2 to the internal surface in lower dead center zone, the two ends up and down of these small pit institute distributed areas are positioned at the top dead center of pistons work stroke compression ring, the lower dead center of oil ring.These small pits 1 shape in the shape of a spiral are distributed in cylinder sleeve 2 internal surfaces, pit 1 degree of depth≤0.005mm that each is small, and pit 1 mouth diameters≤0.03mm, the spacing between the adjacent pit are 0.6mm, pitch is 0.6mm.
Claims (2)
1. cylinder of internal combustion engine cover, cylinder sleeve is fixed in the IC engine cylinder body, it is characterized in that: be provided with some pits at the piston motion top dead center of cylinder sleeve to the internal surface in lower dead center zone, pit depth≤0.005mm, pit mouth diameters≤0.03mm, the spacing between the adjacent pit is 0.6mm.
2. cylinder sleeve according to claim 1 is characterized in that: some pits shape in the shape of a spiral are distributed in the cylinder sleeve internal surface, and pitch is 0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620110167 CN2881122Y (en) | 2006-03-21 | 2006-03-21 | Internal combustion engine cylinder liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620110167 CN2881122Y (en) | 2006-03-21 | 2006-03-21 | Internal combustion engine cylinder liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2881122Y true CN2881122Y (en) | 2007-03-21 |
Family
ID=37880962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620110167 Expired - Lifetime CN2881122Y (en) | 2006-03-21 | 2006-03-21 | Internal combustion engine cylinder liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2881122Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228236A (en) * | 2020-10-20 | 2021-01-15 | 江苏大学 | Internal combustion engine cylinder sleeve and machining method thereof |
-
2006
- 2006-03-21 CN CN 200620110167 patent/CN2881122Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228236A (en) * | 2020-10-20 | 2021-01-15 | 江苏大学 | Internal combustion engine cylinder sleeve and machining method thereof |
| CN112228236B (en) * | 2020-10-20 | 2021-11-05 | 江苏大学 | Internal combustion engine cylinder sleeve and machining method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chongqing Building Yamaha Motocycle Co., Ltd. Assignor: Chongqing Jianshe Motorcycle Co., Ltd. Contract record no.: 2010500000068 Denomination of utility model: Supporting board for large two-stroke internal combustion engine cylinder jacket Granted publication date: 20070321 License type: Exclusive License Record date: 20101015 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070321 |
|
| EXPY | Termination of patent right or utility model |