CN200943533Y - Internal combustion engine diesel engine cylinder with abrasive-reducing ring - Google Patents
Internal combustion engine diesel engine cylinder with abrasive-reducing ring Download PDFInfo
- Publication number
- CN200943533Y CN200943533Y CNU2006200757718U CN200620075771U CN200943533Y CN 200943533 Y CN200943533 Y CN 200943533Y CN U2006200757718 U CNU2006200757718 U CN U2006200757718U CN 200620075771 U CN200620075771 U CN 200620075771U CN 200943533 Y CN200943533 Y CN 200943533Y
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- CN
- China
- Prior art keywords
- cylinder liner
- wearing ring
- piston
- cylinder
- ring
- 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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Classifications
-
- 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
- F02F2001/006—Cylinders; Cylinder heads having a ring at the inside of a liner or cylinder for preventing the deposit of carbon oil particles, e.g. oil scrapers
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to the technical art of a diesel engine of a diesel locomotive, particularly to a cylinder of a diesel engine of a diesel locomotive with a wear ring. The utility model comprises a piston, a piston ring and a cylinder liner, the mouth of the cylinder liner combustion chamber is a step-type enlarged hole, the step-type enlarged hole is provided with a wear ring, the height of the wear ring is less than the depth of the step-type enlarged hole of the cylinder liner, the outer diameter of the wear ring is corresponding to the inner diameter of the step-type enlarged hole and the inner diameter of the wear ring is less than the inner diameter of the inner of the cylinder liner; the wear ring combines the cylinder liner to form a step-type inner hole and the head is step-shaped corresponding to the step-type inner hole. The utility model is characterized in that: 1. reduce engine oil consumption of the diesel engine and the wear between the cylinder liner and the piston ring; 2. the existing diesel engines can be conveniently changed with the cylinder liner, wear rings and pistons of the utility model.
Description
Technical field
The utility model relates to the diesel engine of diesel locomotive technical field, especially a kind of diesel engine of diesel locomotive cylinder that has wearing ring.
Background technique
Usually the diesel engine of diesel locomotive cylinder cover inner hole is one cylindrical, in the working procedure of diesel engine, oil inflame easily produces carbon distribution at cylinder cover inner hole wall and piston crown, thereby cause cylinder cover inner hole wall and wear of piston-rings easily, shortened the working life of cylinder, and can make combustion gas scurry into crankcase and pollute machine oil on the one hand, and shortened the working life of machine oil, can make machine oil scurry into the firing chamber on the other hand.Thereby the machine oil of burning in combustion process is increased greatly, improved specific oil consumption, form burn oil, can emit blue smoke when serious.
Summary of the invention
In order to overcome the deficiency of the easy carbon distribution of existing diesel engine of diesel locomotive cylinder, the utility model provides a kind of diesel engine of diesel locomotive cylinder that has wearing ring.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of diesel engine of diesel locomotive cylinder that has wearing ring, include piston, piston ring and cylinder liner, the oral area of cylinder liner firing chamber is step-like reaming, be provided with wearing ring in the step-like reaming, the height of wearing ring is lower than the degree of depth of the step-like reaming of cylinder liner, the external diameter of wearing ring and step-like reaming internal diameter Spielpassung, the internal diameter of wearing ring is less than the internal diameter of portion in the cylinder liner; Stepped endoporus, piston crown that wearing ring and cylinder liner are combined into cutting edge are the stepped shaft that matches with stepped endoporus.
The external diameter of described wearing ring and step-like reaming internal diameter matching gap are 0.05～0.25 millimeter.
The height of described wearing ring is lower than 0.2～1 millimeter of the degree of depth of the step-like reaming of cylinder liner.
Furtherly: when upper dead center position is arrived in piston motion, 0.5～2.5 millimeter of the cutting edge of the step distance wearing ring of step piston head.
Further specify structure of the present utility model and working principle below again, the internal diameter of wearing ring is littler than the internal diameter of cylinder liner, after the assembling, forms a step-like endoporus with cylinder liner.In order to mate with this stepped shaft endoporus, piston crown also is made into a stepped shaft.If piston crown produces carbon distribution, in the to-and-fro motion process of piston, carbon distribution is scraped by the cutting edge of wearing ring.The air-flow that the carbon distribution that scrapes off is made progress blows to the firing chamber, and what have in combustion process is burnt, and what have is pulled away in exhaust process subsequently.Therefore do not form carbon distribution (carbon distribution can absorb the oil film between machine oil and destruction cylinder liner and the piston ring friction pair) near cylinder cover inner hole wall (upper dead center) and piston crown, make cylinder liner and piston ring remain good lubricating status, so just reduced cylinder liner and wear of piston-rings.Moreover, when the moment of fuel oil in the firing chamber explosive combustion, high-pressure gas is by the sideshake between wearing ring and the piston crown, be obstructed in cutting edge corner at wearing ring and piston crown, pressure descends rapidly, and the pressure that piston ring bears descends, and sealing is strengthened, combustion gas can not scurried into crankcase and be polluted machine oil, has prolonged the working life of machine oil.At last, when piston moves upward, because the existence at wearing ring and piston crown ladder position, air motion is to here the time, and smaller volume, pressure increase, like this air-flow with piston ring to pressing down, make piston ring and piston ring groove lower surface closely connected, stop machine oil to scurry into the firing chamber; Even there is a spot of machine oil to scurry into the top of piston ring because of the pumping effect of piston, be obstructed in its cutting edge place at wearing ring, and pressure reduces, and stops machine oil to scurry into the firing chamber, and the oil level of scurrying into the firing chamber is reduced.Thereby the machine oil of burning in combustion process is significantly reduced, reduced specific oil consumption, improved discharging.
The beneficial effects of the utility model are, one, can reduce the diesel engine specific oil consumption, improve discharging, and reduce cylinder liner and wear of piston-rings, improve the functional reliability of diesel engine, and then the repair cycle and the life-span of raising diesel engine; Two,, can be replaced with cylinder liner of the present utility model, wearing ring and piston easily to existing diesel engine.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of original cylinder.
Fig. 2 is a structural representation of the present utility model.
1. pistons among the figure, 2. piston ring, 3. cylinder liner, 4. wearing ring.
Embodiment
The structural representation of original cylinder as shown in Figure 1, this structure is not used wearing ring, Fig. 2 is the diesel engine of diesel locomotive structural representation of air cylinder that has wearing ring of the present utility model, because the cylinder liner 3 general cast iron materials that use, and wearing ring 4 uses a kind of wear resistant alloy material, because the expanded by heating coefficient of cast iron and abrasion resistance alloy is different, the temperature distortion of cast iron is little, and the temperature distortion of alloy is big, so wearing ring 4 external diameters and cylinder liner 3 adopt Spielpassung to allow the expanded by heating of wearing ring 4, the bilateral gap of Spielpassung herein is generally 0.05～0.25 millimeter; And as the reaming place depth dimensions that the height dimension of the wearing ring on Fig. 14 is compared the cylinder liner 3 of being coincide also be slightly smaller, specifically can 0.2～1 millimeter less than normal, also be expressed as the situation that piston 1 is positioned at upper dead center as Fig. 1, the step of piston 1 and the cutting edge of wearing ring 4 maintain certain distance at this moment, and described distance can be 0.5～2.5 millimeter.
Claims (4)
1, a kind of diesel engine of diesel locomotive cylinder that has wearing ring, include piston (1), piston ring (2) and cylinder liner (3), it is characterized in that: the oral area of described cylinder liner (3) firing chamber is step-like reaming, be provided with wearing ring (4) in the step-like reaming, the height of wearing ring (4) is lower than the degree of depth of the step-like reaming of cylinder liner (3), the external diameter of wearing ring (4) and step-like reaming internal diameter Spielpassung, the internal diameter of wearing ring (4) is less than the internal diameter of cylinder liner (3) lining portion; Wearing ring (4) is the stepped shaft that matches with stepped endoporus with stepped endoporus, piston (1) head that cylinder liner (3) is combined into cutting edge.
2, the diesel engine of diesel locomotive cylinder that has wearing ring according to claim 1 is characterized in that: the external diameter of described wearing ring (4) and step-like reaming internal diameter matching gap are 0.05～0.25 millimeter.
3, the diesel engine of diesel locomotive cylinder that has wearing ring according to claim 1 is characterized in that: the height of described wearing ring (4) is lower than 0.2～1 millimeter of the degree of depth of the step-like reaming of cylinder liner (3).
4, the diesel engine of diesel locomotive cylinder that has wearing ring according to claim 1 is characterized in that: when piston (1) when moving to upper dead center position, and 0.5～2.5 millimeter of the cutting edge of the step distance wearing ring (4) of step piston (1) head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200757718U CN200943533Y (en) | 2006-08-28 | 2006-08-28 | Internal combustion engine diesel engine cylinder with abrasive-reducing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200757718U CN200943533Y (en) | 2006-08-28 | 2006-08-28 | Internal combustion engine diesel engine cylinder with abrasive-reducing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200943533Y true CN200943533Y (en) | 2007-09-05 |
Family
ID=38718166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200757718U Expired - Fee Related CN200943533Y (en) | 2006-08-28 | 2006-08-28 | Internal combustion engine diesel engine cylinder with abrasive-reducing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200943533Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867328A (en) * | 2014-02-28 | 2014-06-18 | 南车玉柴四川发动机股份有限公司 | Cylinder sleeve for medium speed diesel engine |
| CN109751113A (en) * | 2018-12-28 | 2019-05-14 | 国营第六一六厂 | A kind of burning chamber of diesel engine and the method for improving burning chamber of diesel engine carbon distribution |
| CN110145598A (en) * | 2019-06-03 | 2019-08-20 | 天津大学 | Combined piston top and shore ring, piston assembly, internal combustion engine and sealing method |
-
2006
- 2006-08-28 CN CNU2006200757718U patent/CN200943533Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867328A (en) * | 2014-02-28 | 2014-06-18 | 南车玉柴四川发动机股份有限公司 | Cylinder sleeve for medium speed diesel engine |
| CN109751113A (en) * | 2018-12-28 | 2019-05-14 | 国营第六一六厂 | A kind of burning chamber of diesel engine and the method for improving burning chamber of diesel engine carbon distribution |
| CN110145598A (en) * | 2019-06-03 | 2019-08-20 | 天津大学 | Combined piston top and shore ring, piston assembly, internal combustion engine and sealing method |
| CN110145598B (en) * | 2019-06-03 | 2024-02-09 | 天津大学 | Combined piston top land ring, piston assembly, internal combustion engine and sealing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SOUTH LOCOMOTIVE COMPANY LIMITED CAR QI SHUYAN Free format text: FORMER OWNER: QISHUYAN LOCOMOTIVE + ROLLING STOCK WORKS, CSR Effective date: 20080328 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080328 Address after: Changzhou City, Jiangsu Province, Yanling Road No. 358, zip code: 213011 Patentee after: CHINA NANCHE GROUP QISHUYAN LOCOMOTIVE VEHICLE Co., Ltd. Address before: Qishuyan District, Changzhou City, Qishuyan Province, Jiangsu 213011, China Patentee before: CSR Qishuyan Locomotive & Rolling Stock Works |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070905 Termination date: 20110828 |