CN207583501U - A kind of cylinder jacket for having the function of to scrape carbon remover - Google Patents
A kind of cylinder jacket for having the function of to scrape carbon remover Download PDFInfo
- Publication number
- CN207583501U CN207583501U CN201721037675.9U CN201721037675U CN207583501U CN 207583501 U CN207583501 U CN 207583501U CN 201721037675 U CN201721037675 U CN 201721037675U CN 207583501 U CN207583501 U CN 207583501U
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- CN
- China
- Prior art keywords
- piston
- cylinder jacket
- type structure
- ladder
- carbon
- 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.)
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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
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model is related to a kind of cylinder jacket for having the function of to scrape carbon remover, are made of cylinder jacket, piston, carbon cleaning sword, it is characterised in that：The top inner wall of cylinder jacket has the ladder-type structure of protrusion, the upper and lower side of ladder-type structure is right angle, the height of the ladder-type structure of cylinder jacket is less than the height of piston junk, this is 1=1.5 ~ 2mm of △ highly with the difference in height of piston junk, the ladder-type structure is carbon cleaning sword, piston is arranged in cylinder jacket, and for clearance fit between the carbon cleaning sword of ladder-type structure and the facade of piston on cylinder liner internal wall, gap width is 2=0.5 ~ 0.8mm of △.The forge piece of step type structure of its cylinder jacket can remove the carbon distribution of piston crown firepower bank in time, avoid the inordinate wear of cylinder jacket, piston, piston ring.
Description
Technical field
The utility model is related to a kind of cylinder jacket for having the function of to scrape carbon remover, belong to heavy vehicle diesel engine neck
Domain.
Background technology
Currently, it is definite value that the typical structure of air cylinder sleeve of engine, which is inner diameter size, and piston matches with cylinder liner internal wall
Close the movement carried out up and down reciprocatingly.In the top dead center position of piston operation, there are larger between cylinder jacket and piston junk
Gap（Combustion chamber dead volume）, due to the accumulation of lubricating oil and imperfect combustion fuel oil in this region, fired in high temperature
Hard carbon distribution is easily formed under the action of gas.
As heavy duty diesel engine reinforcing degree is continuously improved, engine piston bears very high mechanical load and heat is born
Lotus has aggravated the formation of cylinder jacket and piston crown piston land position hard carbon distribution, with hair under the operating mode of this harshness
Motivation long time running, hard carbon distribution are constantly accumulated in cylinder sleeve and piston crown firepower bank, and finally, coming off for hard carbon distribution is drawn
Sending out engine scuffing failure serious causes complete machine disabler, can not work normally.
To prevent cylinder jacket, the scratch of piston ring working surface, failure, ensure piston, cylinder jacket in pumping
The reliability of work needs that technical measures is taken to ensure that piston crown firepower bank carbon distribution is unlikely to blocked up, causes cylinder sleeve, piston ring
The catastrophe failures such as scratch.
Invention content
The purpose of this utility model is to provide a kind of cylinder jacket for having the function of to scrape carbon remover, the stepped knot of cylinder jacket
Structure can remove the carbon distribution of piston crown firepower bank in time, avoid the inordinate wear of cylinder jacket, piston, piston ring.
What the technical solution of the utility model was realized in：A kind of cylinder jacket for having the function of to scrape carbon remover, by cylinder
Set, piston, carbon cleaning sword composition, it is characterised in that：The top inner wall of cylinder jacket has the ladder-type structure of protrusion, stairstepping knot
The upper and lower side of structure is right angle, and the height of the ladder-type structure of cylinder jacket is less than the height of piston junk, this is highly fiery with piston
The difference in height of power bank is 1=1.5 ~ 2mm of △, which is carbon cleaning sword, and piston is arranged in cylinder jacket, cylinder
Cover on inner wall between the carbon cleaning sword of ladder-type structure and the facade of piston for clearance fit, gap width for △ 2=0.5 ~
0.8mm。
The carbon cleaning sword of ladder-type structure on the cylinder liner internal wall, can be replaced the spiral shell of helical thread structure
Line shape carbon cleaning sword, the height d1 of the carbon cleaning sword outer diameter and difference in internal diameters, i.e. screw thread of screw thread shape carbon cleaning sword, screw thread shape
Carbon cleaning sword and horizontal direction angle are θ, between ranging from 25 ° ~ 75 ° of θ values.
The good effect of the utility model is their ability to remove in heavy vehicle diesel engine During Process of Long-term Operation and live
Firepower bank hard carbon distribution is filled in, avoids the scratch of cylinder jacket working surface, failure, ensures piston, cylinder jacket in pumping
The reliability of work greatly improves service life and the reliability of complete machine.
Description of the drawings
Fig. 1 is the structure chart of the utility model.
Fig. 2 is the carbon cleaning sword sectional structure chart of the utility model.
Fig. 3 is the screw thread shape carbon cleaning sword sectional structure chart of the utility model.
Fig. 4 is the screw thread shape carbon cleaning sword horizontal direction angle figure of the utility model.
Specific embodiment
The utility model is described further below in conjunction with the accompanying drawings：As shown in Figs 1-4, it is a kind of to have the function of to scrape carbon remover
Cylinder jacket, be made of cylinder jacket 1, piston 2, carbon cleaning sword 3, it is characterised in that：The top inner wall of cylinder jacket 1 has protrusion
Ladder-type structure, the upper and lower side of ladder-type structure is right angle, and the height of the ladder-type structure of cylinder jacket 1 is less than piston junk
Highly, this is 1=1.5 ~ 2mm of △ highly with the difference in height of piston junk, which is carbon cleaning sword 3, piston
2 are arranged in cylinder jacket 1, on 1 inner wall of cylinder jacket between the carbon cleaning sword 3 of ladder-type structure and the facade of piston 2 be gap
Cooperation, gap width are 2=0.5 ~ 0.8mm of △.
The carbon cleaning sword 3 of ladder-type structure on 1 inner wall of cylinder jacket, can be replaced helical thread structure
Screw thread shape carbon cleaning sword 3-1, the carbon cleaning sword outer diameter of screw thread shape carbon cleaning sword 3-1 and the height of difference in internal diameters, i.e. screw thread
D1, screw thread shape carbon cleaning sword 3-1 and horizontal direction angle are θ, between ranging from 25 ° ~ 75 ° of θ values.
It is an entirety that the carbon of forge piece of step type structure, which removes sword 3 with cylinder jacket, in cylinder jacket 1, is produced by the mode being machined
Raw, the height of forge piece of step type structure is less than the height of piston junk, and this highly with the difference in height of piston junk for △ 1=
1.5~2mm。
For clearance fit between the carbon cleaning sword 3 of ladder-type structure and the facade of piston 2 on 1 inner wall of cylinder jacket, gap
It is worth for 2=0.5 ~ 0.8mm of △, while suitable for steel pistons and aluminum piston.
Carbon removes 3 inner wall upper and lower end face of sword and retains right-angle structure, for striking off the carbon distribution of the piston junk of reciprocating motion.
Claims (2)
1. a kind of cylinder jacket for having the function of to scrape carbon remover, cylinder jacket, piston, carbon cleaning sword, it is characterised in that：Cylinder jacket
Top inner wall has a ladder-type structure of protrusion, and the upper and lower side of ladder-type structure is right angle, the height of the ladder-type structure of cylinder jacket
Less than the height of piston junk, this is 1=1.5 ~ 2mm of △ highly with the difference in height of piston junk, which is
Carbon cleaning sword, piston are arranged in cylinder jacket, the carbon cleaning sword of ladder-type structure and the facade of piston on cylinder liner internal wall
Between for clearance fit, gap width is 2=0.5 ~ 0.8mm of △.
2. according to a kind of cylinder jacket for having the function of to scrape carbon remover described in claim 1, it is characterised in that the cylinder
The carbon cleaning sword of the ladder-type structure on inner wall is covered, can be replaced the screw thread shape carbon cleaning sword of helical thread structure, spiral shell
The carbon cleaning sword outer diameter and difference in internal diameters of line shape carbon cleaning sword, the i.e. height of screw thread are d1, screw thread shape carbon cleaning sword and water
Flat angular separation is θ, between ranging from 25 ° ~ 75 ° of θ values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721037675.9U CN207583501U (en) | 2017-08-18 | 2017-08-18 | A kind of cylinder jacket for having the function of to scrape carbon remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721037675.9U CN207583501U (en) | 2017-08-18 | 2017-08-18 | A kind of cylinder jacket for having the function of to scrape carbon remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207583501U true CN207583501U (en) | 2018-07-06 |
Family
ID=62718938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721037675.9U Active CN207583501U (en) | 2017-08-18 | 2017-08-18 | A kind of cylinder jacket for having the function of to scrape carbon remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207583501U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4144979A1 (en) * | 2021-09-03 | 2023-03-08 | DEUTZ Aktiengesellschaft | Combustion engine with an element on the inner wall of a cylinder for scraping carbon residues |
| WO2023118534A1 (en) * | 2021-12-23 | 2023-06-29 | Newgreen Ag | Diesel engine with high-pressure injection and charging function, and piston for a diesel engine |
-
2017
- 2017-08-18 CN CN201721037675.9U patent/CN207583501U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4144979A1 (en) * | 2021-09-03 | 2023-03-08 | DEUTZ Aktiengesellschaft | Combustion engine with an element on the inner wall of a cylinder for scraping carbon residues |
| WO2023118534A1 (en) * | 2021-12-23 | 2023-06-29 | Newgreen Ag | Diesel engine with high-pressure injection and charging function, and piston for a diesel engine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |