CN112483272A - Cylinder jacket - Google Patents
Cylinder jacket Download PDFInfo
- Publication number
- CN112483272A CN112483272A CN202011404771.9A CN202011404771A CN112483272A CN 112483272 A CN112483272 A CN 112483272A CN 202011404771 A CN202011404771 A CN 202011404771A CN 112483272 A CN112483272 A CN 112483272A
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- Prior art keywords
- channel
- liquid
- annular
- communicated
- series flow
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Classifications
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- 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
- F02F1/004—Cylinder liners
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- 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
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention relates to the technical field of engines, and discloses a cylinder sleeve which comprises a body, wherein one end of the body, which is close to a top dead center of a piston, is a first end; the liquid cooling channel is arranged in the side wall of the first end and surrounds the circumferential direction of the body; the liquid inlet channel and the liquid outlet channel are arranged in the side wall of the first end, one end of the liquid inlet channel is communicated with the liquid inlet part of the liquid cooling channel, and the other end of the liquid inlet channel is communicated with an external liquid supply pipeline; one end of the liquid outlet channel is communicated with the liquid outlet part of the liquid cooling channel, and the other end of the liquid outlet channel is communicated with a corresponding external liquid return pipeline. The cylinder sleeve improves the problem that the wall thickness of the cylinder sleeve and the in-cylinder cooling are mutually restricted.
Description
Technical Field
The invention relates to the technical field of engines, in particular to a cylinder sleeve.
Background
In the prior art, the wall thickness of a cylinder sleeve is required to be thicker and the in-cylinder cooling is required to be stronger along with the improvement of indexes such as detonation pressure, power per liter and the like of a large-bore engine. However, in the existing structure, the thicker the wall thickness of the cylinder liner is, the worse the in-cylinder cooling effect is, a balance point between the wall thickness of the cylinder liner and the in-cylinder cooling needs to be found, and the wall thickness of the cylinder liner and the in-cylinder cooling are mutually restricted, so that the development of an engine is limited.
Disclosure of Invention
The invention provides a cylinder sleeve, which is used for solving the problem that the wall thickness of the cylinder sleeve and the in-cylinder cooling are mutually restricted in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a cylinder liner, comprising:
the piston comprises a body, a piston rod and a piston rod, wherein one end of the body, which is close to a top dead center of the piston, is a first end;
the liquid cooling channel is arranged in the side wall of the first end and surrounds the circumference of the body;
the liquid inlet channel and the liquid outlet channel are arranged in the side wall of the first end, one end of the liquid inlet channel is communicated with the liquid inlet part of the liquid cooling channel, and the other end of the liquid inlet channel is communicated with an external liquid supply pipeline; one end of the liquid outlet channel is communicated with the liquid outlet part of the liquid cooling channel, and the other end of the liquid outlet channel is communicated with a corresponding external liquid return pipeline.
Optionally, include a plurality of inlet channel, liquid cooling passageway includes first annular channel, and is a plurality of inlet channel follows first annular channel's circumference interval sets up, and all with the inlet portion intercommunication of first annular channel.
Optionally, each of the liquid inlet channels is arranged obliquely to the axial direction of the body.
Optionally, the liquid cooling channel includes a second annular channel, and the second annular channel and the first annular channel are arranged at intervals along the axial direction of the body; the liquid outlet channel is communicated with the second annular channel;
the side wall of the first end is also provided with a series flow channel, the series flow channel is positioned between the first annular channel and the second annular channel, one end of the series flow channel is communicated with the first annular channel, and the other end of the series flow channel is communicated with the second annular channel.
Optionally, an end of the body opposite to the first end is a second end, and the second annular channel is farther from the second end than the first annular channel along the axial direction of the body.
Optionally, a plurality of the stream-flowing channels are arranged in the side wall of the first end, and the plurality of the stream-flowing channels are arranged at intervals along the circumferential direction of the body.
Optionally, each series flow channel is arranged obliquely relative to the axial direction of the body.
Optionally, the liquid outlet channel comprises a plurality of liquid outlet channels, the liquid outlet channels are arranged along the circumferential direction of the second annular channel at intervals, are communicated with the liquid outlet part of the second annular channel, and are obliquely arranged relative to the axial direction of the body.
Optionally, an end of the body opposite to the first end is a second end;
the liquid cooling channel comprises a third annular channel and at least one middle annular channel, the first end is directed to the direction of the second end, the third annular channel, the middle annular channels and the first annular channels are arranged in sequence at intervals, the liquid outlet channel is communicated with the third annular channel, the liquid inlet channel is communicated with the first annular channels, and series flow channels are arranged between every two adjacent annular channels in a communicated mode.
Optionally, the liquid outlet device comprises a plurality of liquid outlet channels, and each liquid outlet channel is obliquely arranged relative to the axial direction of the body;
and/or a plurality of series flow channels are communicated between two adjacent annular channels, and each series flow channel is obliquely arranged relative to the axial direction of the body.
Drawings
Fig. 1 is a schematic structural view of a cylinder liner provided in an embodiment of the present invention;
fig. 2 is a cross-sectional view of the cylinder liner shown in fig. 1;
fig. 3 is a schematic structural diagram of a liquid cooling passage, a liquid inlet passage, a liquid outlet passage, and the like in a cylinder liner according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of the liquid cooling channel, the liquid inlet channel, the liquid outlet channel, and the like shown in fig. 3 at another angle.
Icon: 1-body; 2-a first end; 21-a liquid cooling channel; 211-a first annular channel; 212-a second annular channel; 22-a liquid inlet channel; 23-a liquid outlet channel; 24-a stream channel; 3-second end.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the present embodiment provides a cylinder liner including:
the piston comprises a body 1, wherein one end of the body 1, which is close to a top dead center of a piston, is a first end 2;
the liquid cooling channel 21 is arranged in the side wall of the first end 2, and the liquid cooling channel 21 is arranged around the circumference of the body 1;
the liquid inlet channel 22 and the liquid outlet channel 23 are arranged in the side wall of the first end 2, one end of the liquid inlet channel 22 is communicated with the liquid inlet part of the liquid cooling channel 21, and the other end of the liquid inlet channel is communicated with a corresponding external liquid supply pipeline; one end of the liquid outlet channel 23 is communicated with the liquid outlet part of the liquid cooling channel 21, and the other end is communicated with a corresponding external liquid return pipeline.
Generally, the temperature of one end of an engine cylinder close to the top dead center of a piston is higher than that of other parts, so that the temperature reduction requirement is stronger than that of other parts, and in the prior art, the wall thickness of a cylinder sleeve and the in-cylinder cooling are mutually restricted, so that the development of the engine is greatly limited.
The cylinder sleeve provided by the embodiment is characterized in that a liquid cooling channel 21 surrounding the circumference of the body 1 is arranged in the side wall of one end (namely the first end 2) of the body 1, which is used for being close to the top dead center of the piston, a liquid inlet channel 22 used for communicating a liquid inlet part of the liquid cooling channel 21 with an external liquid supply pipeline and a liquid outlet channel 23 used for communicating a liquid outlet part of the liquid cooling channel 21 with an external liquid return pipeline are arranged, so that cooling liquid enters the liquid cooling channel 21 from the liquid inlet channel 22 and is discharged through the liquid outlet channel 23. The partial heat of cylinder jacket can be taken away to discharged coolant to play the first end 2 of cooling cylinder jacket, for the effect of the interior cooling of jar. Liquid cooling channel 21, inlet channel 22 and play liquid channel 23's setting in the lateral wall of first end 2 for the coolant liquid flows in the lateral wall of body 1, this is compared in the coolant liquid and is cooled off at the cylinder jacket surface, the distance in coolant liquid and the jar is littleer, the cooling effect is better, thereby can reduce the restriction effect of cylinder liner wall thickness to the in-cylinder cooling effect, make the cooling effect at the higher position of cylinder liner temperature in the jar promptly be showing and improve, the performance of engine can further promote.
In specific application, the weakening of the strength of the cylinder liner caused by the liquid cooling channel 21, the liquid inlet channel 22, the liquid outlet channel 23 and the like can be eliminated by properly increasing the wall thickness of the cylinder liner.
In a specific implementation manner, the cylinder sleeve comprises a plurality of liquid inlet channels 22 to increase the contact area of the cooling liquid with the body 1, so that the cooling of the first end 2 is more uniform and the cooling effect is better; the liquid cooling passage 21 may include a first annular passage 211, and a plurality of liquid inlet passages 22 are disposed at intervals along the circumferential direction of the first annular passage 211 and are all communicated with the liquid inlet portion of the first annular passage 211.
In order to further increase the contact area between the cooling liquid and the body 1, so that the cooling of the first end 2 is more uniform and the cooling effect is better, in an alternative implementation manner, as shown in fig. 3 and 4, each liquid inlet channel 22 is obliquely arranged relative to the axial direction of the body 1, and meanwhile, each liquid inlet channel 22 can be uniformly arranged along the circumferential direction of the first annular channel 211; of course, in this case, the liquid outlet channel 23 may include a plurality of liquid outlet channels uniformly distributed along the circumferential direction of the body 1, and each liquid outlet channel 23 may be inclined with respect to the axial direction of the body 1.
On the basis of the above embodiment, in order to further increase the contact area of the cooling liquid with the body 1, in an alternative technical solution, the liquid cooling channel 21 includes a second annular channel 212, and the second annular channel 212 is spaced from the first annular channel 211 along the axial direction of the body 1; the liquid outlet channel 23 is communicated with the second annular channel 212;
the side wall of the first end 2 is further provided with a series flow channel 24, the series flow channel 24 is located between the first annular channel 211 and the second annular channel 212, and one end of the series flow channel 24 is communicated with the first annular channel 211, and the other end of the series flow channel is communicated with the second annular channel 212.
Further, the end of the body 1 opposite to the first end 2 is a second end 3, and the second annular channel 212 is farther from the second end 3 than the first annular channel 211 along the axial direction of the body 1.
The temperature of the part of the body 1 closer to the first end 2 is higher, so that the cooling liquid flows in from the part relatively far away from the first end 2 and flows out from the part relatively close to the first end 2, and compared with the cooling liquid flowing in from the part with higher temperature and flowing out from the part with lower temperature, the cooling effect is better.
In an alternative implementation manner, a plurality of series flow channels 24 are arranged in the side wall of the first end 2, and the plurality of series flow channels 24 are arranged at intervals along the circumferential direction of the body 1 to increase the contact area between the cooling liquid and the body 1, so that the cooling effect is better.
In order to make the cooling of the first end 2 more uniform, optionally, a plurality of series flow channels 24 may be evenly arranged in the circumferential direction of the body 1.
In order to further increase the contact area between the cooling liquid and the body 1 and improve the cooling effect, in a specific implementation manner, each series flow channel 24 may be disposed obliquely with respect to the axial direction of the body 1.
At this time, when the cylinder liner includes a plurality of liquid outlet channels 23, the plurality of liquid outlet channels 23 may be arranged at intervals along the circumferential direction of the second annular channel 212, and all of the liquid outlet channels are communicated with the liquid outlet portion of the second annular channel 212 and arranged obliquely with respect to the axial direction of the body 1.
The end opposite to the first end 2 on the body 1 is the second end 3, in order to improve the contact area of the cooling liquid and the body 1, the cooling effect in the cylinder sleeve and the cylinder is better, in an optional technical scheme, on the basis of the first annular channel 211, the liquid cooling channel 21 can further comprise a third annular channel and at least one middle annular channel, the direction of the first end 2 pointing to the second end 3 is followed, the third annular channel, each middle annular channel and the first annular channel 211 are sequentially and alternately arranged, the liquid outlet channel 23 is communicated with the third annular channel, the liquid inlet channel 22 is communicated with the first annular channel 211, and the series flow channel 24 is communicated between two adjacent annular channels.
Further, the cylinder sleeve may include a plurality of liquid outlet channels 23, and each liquid outlet channel 23 is disposed in an inclined manner with respect to the axial direction of the body 1, so as to increase the contact area between the cooling liquid and the body 1, thereby improving the cooling effect.
Similarly, in an optional implementation manner, a plurality of series flow channels 24 are communicated between two adjacent annular channels, and each series flow channel 24 is obliquely arranged relative to the axial direction of the body 1.
When the cylinder liner provided by the embodiment is designed specifically, the cooling strength can be adjusted by adjusting the number, the diameter and the inclination angle of the liquid inlet channel 22 and the liquid outlet channel 23, or adjusting the channel diameter of the annular channel, the distance between the annular channel and the cylinder hole and the like, so that the accurate control of the in-cylinder cooling effect is realized. The design requirement of the engine can be met through the cooperative design of the strength of the cylinder sleeve and the in-cylinder cooling, so that the requirements of high detonation pressure and high power per liter of the engine are met.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A cylinder liner, characterized by comprising:
the piston comprises a body, a piston rod and a piston rod, wherein one end of the body, which is close to a top dead center of the piston, is a first end;
the liquid cooling channel is arranged in the side wall of the first end and surrounds the circumference of the body;
the liquid inlet channel and the liquid outlet channel are arranged in the side wall of the first end, one end of the liquid inlet channel is communicated with the liquid inlet part of the liquid cooling channel, and the other end of the liquid inlet channel is communicated with an external liquid supply pipeline; one end of the liquid outlet channel is communicated with the liquid outlet part of the liquid cooling channel, and the other end of the liquid outlet channel is communicated with a corresponding external liquid return pipeline.
2. The cylinder liner according to claim 1, characterized by comprising a plurality of said liquid-feeding passages, said liquid-feeding passages including a first annular passage, said plurality of said liquid-feeding passages being arranged at intervals along a circumferential direction of said first annular passage and each communicating with a liquid-feeding portion of said first annular passage.
3. The cylinder liner according to claim 2, characterized in that each of the intake passages is provided obliquely with respect to the axial direction of the body.
4. The cylinder liner according to claim 2, characterized in that the liquid cooling passage includes a second annular passage provided at a distance from the first annular passage in the axial direction of the body; the liquid outlet channel is communicated with the second annular channel;
the side wall of the first end is also provided with a series flow channel, the series flow channel is positioned between the first annular channel and the second annular channel, one end of the series flow channel is communicated with the first annular channel, and the other end of the series flow channel is communicated with the second annular channel.
5. The cylinder liner according to claim 4, characterized in that an end of the body opposite to the first end is a second end, and the second annular passage is located farther from the second end than the first annular passage in an axial direction of the body.
6. The cylinder liner according to claim 4, characterized in that a plurality of the series flow passages are provided in a side wall of the first end, the plurality of the series flow passages being provided at intervals in a circumferential direction of the body.
7. The cylinder liner according to claim 6, characterized in that each of the series flow passages is arranged obliquely with respect to an axial direction of the body.
8. The cylinder liner according to claim 4, characterized by comprising a plurality of said drain passages, which are arranged at intervals in the circumferential direction of said second annular passage, are all communicated with the drain portion of said second annular passage, and are arranged obliquely with respect to the axial direction of said body.
9. The cylinder liner according to claim 2 or 3, characterized in that an end of the body opposite to the first end is a second end;
the liquid cooling channel comprises a third annular channel and at least one middle annular channel, the first end is directed to the direction of the second end, the third annular channel, the middle annular channels and the first annular channels are arranged in sequence at intervals, the liquid outlet channel is communicated with the third annular channel, the liquid inlet channel is communicated with the first annular channels, and series flow channels are arranged between every two adjacent annular channels in a communicated mode.
10. The cylinder liner according to claim 9, characterized by comprising a plurality of said liquid outlet passages, each of which is disposed obliquely with respect to the axial direction of said body;
and/or a plurality of series flow channels are communicated between two adjacent annular channels, and each series flow channel is obliquely arranged relative to the axial direction of the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011404771.9A CN112483272A (en) | 2020-12-02 | 2020-12-02 | Cylinder jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011404771.9A CN112483272A (en) | 2020-12-02 | 2020-12-02 | Cylinder jacket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112483272A true CN112483272A (en) | 2021-03-12 |
Family
ID=74939558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011404771.9A Pending CN112483272A (en) | 2020-12-02 | 2020-12-02 | Cylinder jacket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112483272A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278450A (en) * | 2021-11-01 | 2022-04-05 | 中国船舶重工集团公司第七一一研究所 | Cylinder jacket assembly |
| DE202023102190U1 (en) | 2023-04-25 | 2023-05-04 | Innio Jenbacher Gmbh & Co Og | Cylinder liner for an internal combustion engine |
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| US20050274333A1 (en) * | 2004-02-09 | 2005-12-15 | Benmaxx, Llc | Fluid-cooled cylinder liner |
| CN201739015U (en) * | 2010-04-01 | 2011-02-09 | 宁波远达船机配件有限公司 | Cylinder liner of marine diesel engine |
| US20110030627A1 (en) * | 2007-08-29 | 2011-02-10 | Karlheinz Bing | cylinder crank case for an internal combustion engine |
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| CN208168998U (en) * | 2018-04-20 | 2018-11-30 | 扬州华铁铁路配件有限公司 | Engine cooling type cylinder jacket |
| CN108979884A (en) * | 2018-08-08 | 2018-12-11 | 江苏紫金动力股份有限公司 | A kind of cylinder jacket |
| CN208702554U (en) * | 2018-07-23 | 2019-04-05 | 福建省武平县宇田汽车零部件工业有限公司 | A kind of resistance to greasy dirt type automobile cylinder sleeve |
| US20190170082A1 (en) * | 2017-12-01 | 2019-06-06 | GM Global Technology Operations LLC | Cylinder liner assembly and method of making the same |
| CN110080901A (en) * | 2019-04-30 | 2019-08-02 | 中船动力研究院有限公司 | A kind of wet liner and cylinder |
| TWM594062U (en) * | 2019-07-08 | 2020-04-21 | 可立新實業有限公司 | Water-cooling type cylinder structure |
-
2020
- 2020-12-02 CN CN202011404771.9A patent/CN112483272A/en active Pending
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| DK60293D0 (en) * | 1993-05-26 | 1993-05-26 | Man B & W Diesel Gmbh | PROCEDURE AND COMBUSTION ENGINE |
| US20050274333A1 (en) * | 2004-02-09 | 2005-12-15 | Benmaxx, Llc | Fluid-cooled cylinder liner |
| US20110030627A1 (en) * | 2007-08-29 | 2011-02-10 | Karlheinz Bing | cylinder crank case for an internal combustion engine |
| CN102325977A (en) * | 2009-02-20 | 2012-01-18 | 阿凯提兹动力公司 | Multi-cylinder opposed-piston engine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278450A (en) * | 2021-11-01 | 2022-04-05 | 中国船舶重工集团公司第七一一研究所 | Cylinder jacket assembly |
| DE202023102190U1 (en) | 2023-04-25 | 2023-05-04 | Innio Jenbacher Gmbh & Co Og | Cylinder liner for an internal combustion engine |
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Application publication date: 20210312 |