CN109958544A - A kind of wet liner having good heat transfer and sealing performance - Google Patents
A kind of wet liner having good heat transfer and sealing performance Download PDFInfo
- Publication number
- CN109958544A CN109958544A CN201910374559.3A CN201910374559A CN109958544A CN 109958544 A CN109958544 A CN 109958544A CN 201910374559 A CN201910374559 A CN 201910374559A CN 109958544 A CN109958544 A CN 109958544A
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- Prior art keywords
- cylinder
- cylinder shell
- ring belt
- cooling chamber
- branch brace
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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
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/16—Cylinder liners of wet type
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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 purpose of the present invention is to provide a kind of wet liners for having good heat transfer and sealing performance, including cylinder shell, cylinder shell is mounted in the cylinder-bore of body, radially projecting branch brace shoulder is arranged in the top of cylinder shell, ring belt is arranged in cylinder shell lower part, step is arranged in cylinder bore upper, branch brace shoulder matches the axial restraint for realizing cylinder shell with step, ring belt is in contact with body inner wall and realizes the radially fixed of cylinder shell, branch brace shoulder, ring belt and body wall surface form cooling chamber, in body setting connection cooling chamber import inlet channel and be connected to cooling chamber export water outlet.The present invention can enable cylinder obtain good cooling, meet radiating requirements of the engine under more high load capacity, guarantee that engine can efficient for a long time, reliability service.
Description
Technical field
The present invention relates to a kind of internal combustion engines, the specifically cylinder liner construction of internal combustion engine.
Background technique
In modern society's life production, internal-combustion piston engine is a kind of very important dynamic power machine.Piston internal-combustion
Machine has many advantages, such as thermal efficiency is high, power and the range of speeds are wide, mobility is good, has extensively in many industry and sphere of life
General application.
Cylinder jacket is a very important component in internal-combustion piston engine, is placed in the cylinder-bore of body, with cylinder
Lid collectively forms the working space of internal-combustion piston engine, enables piston wherein doing stable linear reciprocating motion, then
The rotation that the linear reciprocating motion of piston is become to crankshaft by connecting bar and crankshaft structure, exports Effective power outward.
The friction of burning and piston and cylinder inner wall due to fuel, cylinder jacket can absorb largely during the work time
Heat, if heat transfer cannot be gone out in time, the temperature of cylinder jacket can continue to increase, and be easy to cause sticking of piston rings, gas
Cylinder sleeve such as wears rapidly at the adverse consequences, influences the normal operation of engine, reduces the service life of engine.Therefore, can cylinder jacket
It is most important to the stable and high effective operation of diesel engine to obtain good cooling.
Cylinder jacket is divided into dry liner and wet liner by the type of cooling, and dry liner does not connect directly with coolant liquid
Touching, and the outer surface of wet liner is directly in contact with coolant liquid, wet liner generally uses water as coolant liquid.Wet type gas
The cooling effect of cylinder sleeve is got well than dry liner, but has the disadvantage that sealing is difficult, and cooling water is easy from cooling chamber to leaking
Leakage, so that the normal work to engine causes adverse effect.Further, since wet liner used in engine is general at present
It is all the cylindrical shape of smooth outer surface, heat dissipation area is small, and heat exchange efficiency is low, so cannot be abundant in the work of diesel engine high load capacity
Meet the radiating requirements of diesel engine.
Summary of the invention
The purpose of the present invention is to provide the coolings of the heat-sinking capability that can be improved cylinder jacket and improvement wet liner
A kind of wet liner for having good heat transfer and sealing performance of chamber sealing performance.
The object of the present invention is achieved like this:
A kind of wet liner for having good heat transfer and sealing performance of the present invention, it is characterized in that: including cylinder shell, cylinder
Body is mounted in the cylinder-bore of body, and radially projecting branch brace shoulder is arranged in the top of cylinder shell, and cylinder shell lower part is set
Ring belt is set, step is arranged in cylinder bore upper, and branch brace shoulder matches the axial restraint for realizing cylinder shell, ring belt with step
It is in contact with body inner wall and realizes the radially fixed of cylinder shell, branch brace shoulder, ring belt and body wall surface form cooling chamber, body
In setting connection cooling chamber import inlet channel and be connected to cooling chamber export water outlet.
The present invention may also include:
1, the ring belt includes the ring belt parallel with cylinder sleeve axis and the ring belt with axis at 30 ° of angles, with cylinder
First of water shutoff annular groove is set on the parallel ring belt of set axis, is sealed with axis at setting second on the ring belt of 30 ° of angles
Seal washer is arranged with step part below in water ring slot, branch brace shoulder.
2, the ring for the sealing liquid of first of water shutoff annular groove installation is rectangular section, and the ring for the sealing liquid of second water shutoff annular groove installation is circle
Tee section, the area of circular cross-section are greater than the area of rectangular section.
3, cylinder shell is located at the arc-shaped fin that protrusion is arranged on the outer wall of cooling cavity segment.
Present invention has an advantage that
1, branch brace shoulder and ring belt are provided in cylinder jacket, so cylinder is cased with good axially position and radial direction is fixed
Position.
2, by the way that the arc-shaped fin of protrusion is arranged in cooling chamber, the contact surface of cylinder jacket and cooling water can be increased
Product, and since the flow-disturbing of fin acts on, the flow meter surface layer of cooling water is destroyed, cooling water is in flow process in turbulent flow
State.The heat convection efficiency between cooling water and cylinder jacket can be improved in such setting, is conducive to cylinder jacket absorption
Heat transfer is gone out, and radiating requirements of the engine in high load capacity work are met.
3, arc-shaped fin is unlikely to increase to flow of cooling water while enhancing cylinder jacket and cooling water heat transfer effect again
Add too big flow resistance, engine efficiently, is steadily worked for a long time under high loads.
4, the cylinder jacket is provided with twice water shutoff annular groove, and the ring for the sealing liquid that wherein second water shutoff annular groove is installed is circle
Section, and it is relatively large in diameter.It, can by the way that round ring for the sealing liquid to be pressed on inclined body wall surface when installing cylinder jacket
To form good sealing.In addition, the seal washer below first of ring for the sealing liquid and branch brace shoulder can also provide good sealing
Effect.Therefore compared to traditional wet liner, the cylinder jacket is more preferable to the sealing effect of cooling chamber, can be effectively prevented cold
But the leakage of water is conducive to the safe and stable operation of diesel engine.
5, the cylinder jacket of such structure is not only high with the heat exchange efficiency of cooling water, but also structurally reasonable, and manufacture is easy for installation,
Stable working state, therefore the stability and reliability of diesel engine can be improved, guarantee that diesel engine can be safe and efficient for a long time
Operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of cylinder shell；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is overall appearance figure of the invention；
Fig. 4 is front view of the invention；
Fig. 5 is the cross-sectional view of arc-shaped convex fin.
Specific embodiment
It illustrates with reference to the accompanying drawing and the present invention is described in more detail:
In conjunction with Fig. 1-5, a kind of wet liner for having good heat transfer and sealing performance of the present invention, structure includes: support
Shoulder 1, arc-shaped fin 2, the first water shutoff annular groove 3, the second water shutoff annular groove 4, ring belt 5, inner wall 6.There is edge at the top of cylinder jacket
Radially projecting branch brace shoulder 1, branch brace shoulder are used for the axially position of cylinder jacket.Cylinder jacket is needed during installation below branch brace shoulder 1
Place seal washer 12.Cylinder is cased with ring belt 5, ring belt 5 include the ring belt parallel with cylinder sleeve axis and with axis at 30 °
The ring belt of angle.It is provided with twice water shutoff annular groove on cylinder jacket ring belt 5, is provided on the ring belt parallel with cylinder sleeve axis
Second water shutoff annular groove 4 is provided on first of water shutoff annular groove 3, with ring belt of the axis at 30 ° of angles.First of water shutoff annular groove
3 rings for the sealing liquid 9 installed are rectangular section, and the ring for the sealing liquid 10 that second water shutoff annular groove 4 is installed is circular cross-section.Branch brace shoulder 1
The cooling chamber of cylinder jacket can be cooled down by being formed with body wall face contact with ring belt 5.It is set on the wall surface of cylinder jacket cooling chamber
It is equipped with the arc-shaped fin 2 of protrusion.When engine operation, cooling water enters cooling chamber from inlet channel 11, circumferentially flows, herein
Heat convection is carried out with cylinder jacket in the process, finally flows out cooling chamber from water outlet 7.
The present invention provides to further increase the heat-sinking capability of wet liner and improve the sealing performance of cooling chamber
A kind of novel wet liner.The cylinder jacket can increase cooling chamber by increasing raised arc-shaped fin in cooling chamber
The heat exchange area of wall surface, while superficial layer when can destroy flow of cooling water, increase the turbulence level of cooling water, to improve
The heat convection efficiency of the gentle cylinder sleeve wall surface of cooling water, cooling water are more preferable to the cooling effect of cylinder.And improving sealing performance
Aspect has twice ring for the sealing liquid on the ring belt of cylinder jacket, can be with by the way that round ring for the sealing liquid to be pressed on inclined body wall surface
So that cooling chamber is formed good sealed bottom, seal washer furthermore is installed below the branch brace shoulder at the top of cylinder jacket, it can be with shape
There is good sealing performance at the cooling chamber of good top seal, therefore the cylinder jacket.
There is radially projecting branch brace shoulder 1 at the top of cylinder jacket, for the axially position of cylinder jacket, and the cylinder jacket
It needs to place seal washer 12 below branch brace shoulder 1 during installation.
There is ring belt 5 in the middle part of cylinder jacket outer surface, ring belt 5 includes the ring belt and and axis parallel with cylinder sleeve axis
At the ring belt of 30 ° of angles.Wherein, first of water shutoff annular groove 3 is provided on the ring belt parallel with cylinder sleeve axis, with axis at
Second water shutoff annular groove 4 is provided on the ring belt of 30 ° of angles.The ring for the sealing liquid 9 that first of water shutoff annular groove is installed cuts for rectangle
Face, the ring for the sealing liquid 10 that second water shutoff annular groove is installed are circular cross-section.
Branch brace shoulder 1 and ring belt 5 can cool down the cooling chamber of cylinder jacket by being formed with body wall face contact, and cooling
The arc-shaped fin 2 of protrusion is provided on the wall surface of chamber.
Engine at work, cooling water from inlet channel 11 enter cooling chamber, circumferentially flow, in the process with cylinder
Set carries out heat convection, finally flows out cooling chamber from water outlet 7.
Specific structure of the invention is as shown in Figure 1.The outer surface of cylinder jacket main body have branch brace shoulder 1, arc-shaped fin 2,
The structures such as the first water shutoff annular groove 3, the second water shutoff annular groove 4, ring belt 5, inner wall 6.Wherein branch brace shoulder 1 is used for the axial direction of cylinder jacket
Positioning, ring belt 5 are used for the radial positioning of cylinder jacket, and water shutoff annular groove is for installing ring for the sealing liquid to prevent the leakage of cooling water.
Fig. 2 is structural schematic diagram when cylinder jacket is mounted in machine body cylinder hole.It is installed in cylinder-bore when cylinder jacket
When, since 1 outer diameter of branch brace shoulder at top is larger, it will be formed and be cooperated with the step of cylinder bore upper, along with cylinder head
Covering clamps, and ultimately forms the axial restraint to cylinder jacket.The ring belt 5 of cylinder jacket bottom is formed with body wall face contact
To the radially fixed of cylinder jacket.
Branch brace shoulder 1 and ring belt 5 and body wall face contact form cooling chamber, and cooling chamber wall surface and cooling water contact carry out pair
Heat is spread, to cool down to cylinder jacket.Cooling chamber wall surface is provided with the arc-shaped fin 2 of protrusion, and arc-shaped fin 2 can
Increase the contact area of cylinder jacket and cooling water, furthermore arc-shaped fin can destroy the superficial layer formed when flow of cooling water,
Cooling water is set to be in turbulent condition, disturbance when flow of cooling water is stronger, to improve between cooling water and cylinder jacket
Heat convection efficiency.
The ring belt 5 of cylinder jacket bottom has twice water shutoff annular groove above, installs rectangle ring for the sealing liquid 9 and round ring for the sealing liquid respectively
10, wherein round ring for the sealing liquid 10 is relatively large in diameter.When installing cylinder jacket, by the way that round ring for the sealing liquid 10 is pressed on inclined machine
Good sealing effect is formed on body wall face.In addition, the seal washer 12 below rectangle ring for the sealing liquid 9 and branch brace shoulder can also provide
Good sealing effect.
As shown in Fig. 2, cooling water enters cooling chamber from inlet channel 11 when engine operation, circumferentially flowed to from the left side right
Side, cooling water and cylinder jacket wall surface carry out heat convection in the process, and the temperature of cooling water increases, and cylinder jacket obtain it is cold
But.Disturbance due to arc-shaped fin to cooling water, cooling water can not form stable flow meter surface layer in flow process, place
In turbulent condition, so the heat convection of cylinder jacket wall surface and cooling water is high-efficient, good cooling results.Last cooling water is from water outlet
Flow out cooling chamber in road 7.
Claims (4)
1. a kind of wet liner for having good heat transfer and sealing performance, it is characterized in that: including cylinder shell, cylinder shell installation
In the cylinder-bore of body, radially projecting branch brace shoulder is arranged in the top of cylinder shell, and ring belt is arranged in cylinder shell lower part,
Cylinder bore upper is arranged step, and branch brace shoulder matches the axial restraint for realizing cylinder shell with step, in ring belt and body
Wall, which is in contact, realizes the radially fixed of cylinder shell, and branch brace shoulder, ring belt and body wall surface form cooling chamber, is arranged in body and connects
The inlet channel of logical cooling chamber import and it is connected to the water outlet that cooling chamber exports.
2. a kind of wet liner for having good heat transfer and sealing performance according to claim 1, it is characterized in that: the circle
Annulus includes the ring belt parallel with cylinder sleeve axis and the ring belt with axis at 30 ° of angles, the annulus parallel with cylinder sleeve axis
Take setting first of water shutoff annular groove, with axis on the ring belt of 30 ° of angles be arranged second water shutoff annular groove, branch brace shoulder and its
Seal washer is arranged in the step part of lower section.
3. a kind of wet liner for having good heat transfer and sealing performance according to claim 2, it is characterized in that: first
The ring for the sealing liquid of water shutoff annular groove installation is rectangular section, and the ring for the sealing liquid of second water shutoff annular groove installation is circular cross-section, circular cross-section
Area be greater than rectangular section area.
4. a kind of wet liner for having good heat transfer and sealing performance according to claim 1 to 3, it is characterized in that:
Cylinder shell is located at the arc-shaped fin that protrusion is arranged on the outer wall of cooling cavity segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910374559.3A CN109958544A (en) | 2019-05-07 | 2019-05-07 | A kind of wet liner having good heat transfer and sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910374559.3A CN109958544A (en) | 2019-05-07 | 2019-05-07 | A kind of wet liner having good heat transfer and sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109958544A true CN109958544A (en) | 2019-07-02 |
Family
ID=67027051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910374559.3A Pending CN109958544A (en) | 2019-05-07 | 2019-05-07 | A kind of wet liner having good heat transfer and sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109958544A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002089355A (en) * | 2000-09-19 | 2002-03-27 | Hino Motors Ltd | Cooling device for cylinder liner |
| JP2002276458A (en) * | 2001-03-15 | 2002-09-25 | Toyota Motor Corp | Internal combustion engine |
| US20070290453A1 (en) * | 2006-05-30 | 2007-12-20 | Aktiebolaget Skf | Low-friction annular sealing assembly for a centrifugal pump, in particular an internal combustion engine cooling liquid pump |
| CN104395593A (en) * | 2012-06-19 | 2015-03-04 | 瓦锡兰芬兰有限公司 | Piston engine and cylinder liner |
| CN206071736U (en) * | 2016-08-18 | 2017-04-05 | 福建省武平县宇田汽车零部件工业有限公司 | A kind of strong wet type cylinder sleeve of engine of thermal diffusivity |
| CN107091164A (en) * | 2017-07-05 | 2017-08-25 | 潍柴动力股份有限公司 | A kind of diesel engine and its body water jacket |
| CN108457764A (en) * | 2018-05-03 | 2018-08-28 | 哈尔滨工程大学 | A kind of wet liner with fin |
| CN210799157U (en) * | 2019-05-07 | 2020-06-19 | 哈尔滨工程大学 | Wet cylinder jacket with good heat transfer and sealing performance |
-
2019
- 2019-05-07 CN CN201910374559.3A patent/CN109958544A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002089355A (en) * | 2000-09-19 | 2002-03-27 | Hino Motors Ltd | Cooling device for cylinder liner |
| JP2002276458A (en) * | 2001-03-15 | 2002-09-25 | Toyota Motor Corp | Internal combustion engine |
| US20070290453A1 (en) * | 2006-05-30 | 2007-12-20 | Aktiebolaget Skf | Low-friction annular sealing assembly for a centrifugal pump, in particular an internal combustion engine cooling liquid pump |
| CN104395593A (en) * | 2012-06-19 | 2015-03-04 | 瓦锡兰芬兰有限公司 | Piston engine and cylinder liner |
| CN206071736U (en) * | 2016-08-18 | 2017-04-05 | 福建省武平县宇田汽车零部件工业有限公司 | A kind of strong wet type cylinder sleeve of engine of thermal diffusivity |
| CN107091164A (en) * | 2017-07-05 | 2017-08-25 | 潍柴动力股份有限公司 | A kind of diesel engine and its body water jacket |
| CN108457764A (en) * | 2018-05-03 | 2018-08-28 | 哈尔滨工程大学 | A kind of wet liner with fin |
| CN210799157U (en) * | 2019-05-07 | 2020-06-19 | 哈尔滨工程大学 | Wet cylinder jacket with good heat transfer and sealing performance |
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