CN201321905Y - Cylinder sleeve for internal-combustion engines - Google Patents
Cylinder sleeve for internal-combustion engines Download PDFInfo
- Publication number
- CN201321905Y CN201321905Y CNU2008203037722U CN200820303772U CN201321905Y CN 201321905 Y CN201321905 Y CN 201321905Y CN U2008203037722 U CNU2008203037722 U CN U2008203037722U CN 200820303772 U CN200820303772 U CN 200820303772U CN 201321905 Y CN201321905 Y CN 201321905Y
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- CN
- China
- Prior art keywords
- internal
- cylinder
- cylinder sleeve
- wall surface
- high hardness
- 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 - Fee Related
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Abstract
The utility model discloses a cylinder sleeve for an internal-combustion engine, which is characterized by abrasion resistance. The cylinder sleeve for the internal-combustion engine adopts the technical proposal of overlaying a composite layer with high hardness on the inner wall surface of the sleeve body, in particular to the technical proposal of galvanizing a layer of chrome on the inner wall surface of the sleeve body so as to utilize such characteristics of chrome as high hardness, abrasion resistance and strong corrosion resistance to slow down the abrasion of the cylinder sleeve and greatly prolong the service life of internal-combustion engines. The cylinder sleeve is particularly suitable for repairing cylinder sleeves and producing novel cylinder sleeves.
Description
Technical field
The utility model relates to the cylinder liner of using on a kind of internal-combustion engine.
Background technique
During internal combustion engine, piston carries out to-and-fro motion at a high speed along cylinder inner wall, and combustion stroke can produce up to the above temperature of 700 degree.Internal-combustion engine because cylinder liner produces heavy wear, is all wanted place under repair or replacing after using a period of time, the cost of repairing or changing is all very high.The wearing and tearing of cylinder jacket of diesel engine surpass the permission standard will make the power character of automobile, Economy seriously descend.Therefore, by slowing down the wearing and tearing of cylinder liner, can prolong the working life of internal-combustion engine greatly.The main cause of cylinder liner abrasion has three aspects, i.e. mechanical wear, abrasive wear, chemical corrosion usually.Mechanical wear is caused by mechanical friction, the degree of mechanical wear is subjected to the pressure mutual in machining accuracy, fit quality, lubricating condition, the operating temperature friction of cylinder, piston ring and the influence of surface hardness size, and the hardness that improves cylinder liner internal wall can reduce wearing and tearing greatly.In order to improve the cylinder liner internal wall surface hardness, normally carry out high frequency hardening, the quenching of high energy laser plasma light beam etc. on the cylinder liner internal wall surface, but these modes are the processing cost height not only, and the surface hardness that finally obtains is subjected to the restriction of material itself, and its result still is undesirable.
The model utility content
In order to overcome existing cylinder jacket of diesel engine inner wall surface hardness deficiency high, not easy to wear, technical problem to be solved in the utility model provides a kind of nonabradable cylinder jacket of diesel engine.
The technological scheme that its technical problem that solves the utility model adopts is: this cylinder jacket of diesel engine, comprise body, and it is characterized in that: on the inner wall surface of body, be coated with the high hardness composite bed.
Further be that described high hardness composite bed is a chromium coating.
The beneficial effects of the utility model are: owing to adopted the technological scheme that covers the high hardness composite bed on the inner wall surface of body, especially electroplate one deck chromium on the inner wall surface of body, make it can utilize chromium hardness height, wear-resistant and characteristics that corrosion resistance is strong, slow down the wearing and tearing of cylinder liner, prolong the working life of internal-combustion engine greatly, be particularly suitable for the repairing of cylinder liner and the production of novel cylinder liner.
Description of drawings
Fig. 1 is a cross-sectional schematic of the present utility model.
Be labeled as among the figure: body 1, inner wall surface 2, high hardness composite bed 3.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, cylinder jacket of diesel engine of the present utility model is a characteristic of having utilized high hardness material, by forming on the inner wall surface 2 that high hardness composite bed 3 is covered body 1.High hardness composite bed 3 adopts metallic material or its alloy of high hardness, for example chromium metal and alloy thereof, tungsten alloy, titanium alloy and cemented carbide etc.The method that covers the composite bed of high hardness can adopt conventional electro-plating method, and promptly common way is to utilize the mode of electroplating to cover uniformly on the inner wall surface 2 of body 1.
Because it is strong that chromium coating has well-known high hardness, high wear resistance and an anti-corrosion capacity, therefore, the high hardness composite bed of electroplating on the inner wall surface 2 of cylinder jacket of diesel engine of the present utility model 3 preferably adopts chromium coating.
Claims (2)
1. cylinder jacket of diesel engine comprises body (1), it is characterized in that: be coated with high hardness composite bed (3) on the inner wall surface (2) of body (1).
2. cylinder jacket of diesel engine as claimed in claim 1 is characterized in that: described high hardness composite bed (3) is a chromium coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203037722U CN201321905Y (en) | 2008-12-26 | 2008-12-26 | Cylinder sleeve for internal-combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203037722U CN201321905Y (en) | 2008-12-26 | 2008-12-26 | Cylinder sleeve for internal-combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201321905Y true CN201321905Y (en) | 2009-10-07 |
Family
ID=41159289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203037722U Expired - Fee Related CN201321905Y (en) | 2008-12-26 | 2008-12-26 | Cylinder sleeve for internal-combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201321905Y (en) |
-
2008
- 2008-12-26 CN CNU2008203037722U patent/CN201321905Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20101226 |