CN109958545A - A kind of wet liner for marine low speed diesel engine - Google Patents
A kind of wet liner for marine low speed diesel engine Download PDFInfo
- Publication number
- CN109958545A CN109958545A CN201910374568.2A CN201910374568A CN109958545A CN 109958545 A CN109958545 A CN 109958545A CN 201910374568 A CN201910374568 A CN 201910374568A CN 109958545 A CN109958545 A CN 109958545A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- ring belt
- cylinder shell
- ring
- diesel engine
- 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.)
- Pending
Links
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
- 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
Landscapes
- 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 marine low speed diesel engine, 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 set in the middle part of cylinder shell, the circumferentially arranged circle transfer port in the lower part of cylinder shell, 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.Cylinder of the present invention can 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 diesel engines, specifically cylinder jacket of diesel engine.
Background technique
Diesel engine is a kind of internal-combustion piston engine, and in modern society's life production, diesel engine is a kind of very important
Dynamic power machine.Diesel engine has many advantages, such as thermal efficiency is high, power and the range of speeds are wide, mobility is good, in many industry and
Sphere of life is all widely used.And in ship power field, diesel engine is even more to have irreplaceable status, wherein peculiar to vessel
Low speed two stroke diesel engine is mainly used for the dynamical system as large ship.
Cylinder jacket is a very important component in diesel engine, is placed in the cylinder-bore of body, common with cylinder head
The working space for constituting diesel engine, enables piston wherein doing stable linear reciprocating motion, then passes through connecting bar and crankshaft knot
The linear reciprocating motion of piston is become the rotation of crankshaft by 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.For having compared with long stroke
Marine low speed diesel engine, it is more that the top of cylinder jacket absorbs heat, so compared to lower part, the temperature on cylinder jacket top compared with
A large amount of heat can be absorbed in fuel combustion exothermic process at the top of height, especially cylinder jacket.Therefore, can cylinder jacket top obtain
It is most important to stable and high effective operation of the good cooling to diesel engine.
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, marine diesel 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 diesel engine causes adverse effect.Further, since wet liner used in diesel engines at present is general
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.
Therefore, the heat-sinking capability for how improving cylinder jacket and the cooling chamber sealing performance for improving wet liner are
At present the problem of urgent need to resolve.
Summary of the invention
The purpose of the present invention is to provide can satisfy radiating requirements of the engine under more high load capacity, guarantee that engine can
With a kind of efficient for a long time, reliability service wet liner for marine low speed diesel engine.
The object of the present invention is achieved like this:
A kind of wet liner for marine low speed diesel engine of the present invention, it is characterized in that: including cylinder shell, cylinder jacket
Body is mounted in the cylinder-bore of body, and radially projecting branch brace shoulder, setting in the middle part of cylinder shell is arranged in the top of cylinder shell
Step, branch brace shoulder and step phase is arranged in ring belt, the circumferentially arranged circle transfer port in the lower part of cylinder shell, cylinder bore upper
The axial restraint of cylinder shell is realized in cooperation, and ring belt is in contact with body inner wall realizes the radially fixed of cylinder shell, support
Shoulder, ring belt and body wall surface form cooling chamber, and the inlet channel of setting connection cooling chamber import goes out with cooling chamber is connected in body
The water outlet of mouth.
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, it is provided with branch brace shoulder and ring belt in cylinder jacket, is axially and radially located well so cylinder is cased with.
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 diagram of the present invention；
Fig. 2 is the mounting structure schematic diagram of cylinder jacket and body；
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 marine low speed diesel engine of the present invention, structure includes: branch brace shoulder
1, the first water shutoff annular groove 2, the second water shutoff annular groove 3, arc-shaped fin 4, ring belt 5, transfer port 6.
There is radially projecting branch brace shoulder 1 at the top of cylinder jacket, branch brace shoulder is used for the axially position of cylinder jacket.Cylinder jacket exists
It needs to place seal washer 11 below branch brace shoulder 1 when installation.Cylinder is cased with ring belt 5, and ring belt 5 includes flat with cylinder sleeve axis
Capable ring belt and with axis at the ring belt of 30 ° of angles.Twice water shutoff annular groove is provided on cylinder jacket ring belt 5, with cylinder sleeve
It is provided with first of water shutoff annular groove 2 on the parallel ring belt of axis, and is provided with second on ring belt of the axis at 30 ° of angles
Water shutoff annular groove 3.The ring for the sealing liquid 9 that first of water shutoff annular groove 2 is installed is rectangular section, the envelope that second water shutoff annular groove 3 is installed
Water ring 13 is circular cross-section.Branch brace shoulder 1 and ring belt 5 can cool down the cold of cylinder jacket top by being formed with body wall face contact
But chamber.The arc-shaped fin 4 of protrusion is provided on the wall surface of cylinder jacket cooling chamber.One circle is circumferentially arranged at the lower part of cylinder jacket
Transfer port 6.
When engine operation, cooling water from inlet channel 12 enter cooling chamber, circumferentially flow, in the process with cylinder jacket
Top half exchanges heat, and finally flows out cooling chamber from water outlet 7.
Cylinder jacket can increase the heat exchange area of cooling chamber wall surface by the arc-shaped fin in cooling chamber increase protrusion,
Superficial layer when flow of cooling water can be destroyed simultaneously, increase the turbulence level of cooling water, to improve cooling water and cylinder jacket
The heat convection efficiency of wall surface, cooling water are more preferable to the cooling effect of cylinder.And in terms of improving sealing performance, the cylinder jacket
Ring belt on have twice ring for the sealing liquid, by the way that round ring for the sealing liquid to be pressed on inclined body wall surface, cooling chamber shape can be made
At good sealed bottom, seal washer furthermore is installed below the branch brace shoulder at the top of cylinder jacket, can be formed on good
Portion's sealing, therefore the cooling chamber of the cylinder jacket has good sealing performance.
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 11 below branch brace shoulder 1 during installation.There is ring belt 5 in the middle part of cylinder jacket outer surface, ring belt 5 wraps
Include the ring belt parallel with cylinder sleeve axis and the ring belt with axis at 30 ° of angles.Wherein, the ring belt parallel with cylinder sleeve axis
On be provided with first of water shutoff annular groove 2, and be provided with second water shutoff annular groove 3 on ring belt of the axis at 30 ° of angles.First
The ring for the sealing liquid 9 that water shutoff annular groove is installed is rectangular section, and the ring for the sealing liquid 13 that second water shutoff annular groove is installed is circular cross-section.Branch
Brace shoulder 1 and ring belt 5 can cool down the cooling chamber on cylinder jacket top, and the wall of cooling chamber by being formed with body wall face contact
The arc-shaped fin 4 of protrusion is provided on face.One circle transfer port 6 is circumferentially arranged at the lower part of cylinder jacket.Engine is working
When, cooling water enters cooling chamber from inlet channel 12, and it circumferentially flows, exchanges heat in the process with cylinder jacket top half,
Finally cooling chamber is flowed out from water outlet 7.
Specific structure of the invention is as shown in Figure 1.There are branch brace shoulder 1, the first water shutoff annular groove in the outer surface of cylinder jacket main body
2, the structures such as the second water shutoff annular groove 3, arc-shaped fin 4, ring belt 5, transfer port 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 swept for installing ring for the sealing liquid to prevent the leakage of cooling water
Stomata is the air inlet of fresh air needed for burning.
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.Ring belt 5 in the middle part of cylinder jacket 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 top.Cooling chamber wall surface is provided with the arc-shaped fin 4 of protrusion, arc-shaped fin 4
The contact area of cylinder jacket and cooling water can be increased, furthermore arc-shaped fin can destroy the surface formed when flow of cooling water
Layer makes cooling water be in turbulent condition, and disturbance when flow of cooling water is stronger, to make between cooling water and cylinder jacket
Heat convection efficiency is improved.
Ring belt 5 in the middle part of cylinder jacket has twice water shutoff annular groove above, installs rectangle ring for the sealing liquid 9 and round ring for the sealing liquid respectively
13, wherein round ring for the sealing liquid 13 is relatively large in diameter.When installing cylinder jacket, by the way that round ring for the sealing liquid 13 is pressed on inclined machine
Good sealing effect is formed on body wall face.In addition, the seal washer 11 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 12 when engine operation, circumferentially flowed to from the left side right
Side, cooling water and the wall surface on cylinder jacket top carry out heat convection in the process, and the temperature of cooling water increases, and cylinder jacket obtains
To cooling.Disturbance due to arc-shaped fin to cooling water, cooling water can not form stable flow surface in flow process
Layer is in turbulent condition, so the heat convection of cylinder jacket wall surface and cooling water is high-efficient, good cooling results.Last cooling water
Cooling chamber is flowed out from apopore 7.
Claims (4)
1. a kind of wet liner for marine low speed diesel engine, it is characterized in that: including cylinder shell, cylinder shell is mounted on
In the cylinder-bore of body, radially projecting branch brace shoulder is arranged in the top of cylinder shell, and ring belt, gas is arranged in the middle part of cylinder shell
Step is arranged in the circumferentially arranged circle transfer port in the lower part of cylinder sleeve body, cylinder bore upper, and branch brace shoulder matches realization with step
The axial restraint of cylinder shell, ring belt is in contact with body inner wall realizes the radially fixed of cylinder shell, branch brace shoulder, ring belt
Cooling chamber is formed with body wall surface, the inlet channel of setting connection cooling chamber import and is connected to the water outlet that cooling chamber exports in body
Road.
2. a kind of wet liner for marine low speed diesel engine according to claim 1, it is characterized in that: the annulus
Band includes the ring belt parallel with cylinder sleeve axis and the ring belt with axis at 30 ° of angles, the ring belt parallel with cylinder sleeve axis
First of water shutoff annular groove of upper setting, with axis on the ring belt of 30 ° of angles be arranged second water shutoff annular groove, branch brace shoulder and its under
Seal washer is arranged in the step part of side.
3. a kind of wet liner for marine low speed diesel engine according to claim 2, it is characterized in that: first of envelope
The ring for the sealing liquid of water ring slot 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 is greater than the area of rectangular section.
4. a kind of wet liner for marine low speed diesel engine according to claim 1 to 3, it is characterized in that: gas
Cylinder sleeve body 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 |
|---|---|---|---|
| CN201910374568.2A CN109958545A (en) | 2019-05-07 | 2019-05-07 | A kind of wet liner for marine low speed diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910374568.2A CN109958545A (en) | 2019-05-07 | 2019-05-07 | A kind of wet liner for marine low speed diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109958545A true CN109958545A (en) | 2019-07-02 |
Family
ID=67027015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910374568.2A Pending CN109958545A (en) | 2019-05-07 | 2019-05-07 | A kind of wet liner for marine low speed diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109958545A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163324A (en) * | 2022-08-29 | 2022-10-11 | 潍柴动力股份有限公司 | Cylinder assembly and internal combustion engine |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5979374A (en) * | 1998-06-12 | 1999-11-09 | Cummins Engine Company, Inc. | Control cooled cylinder liner |
| DE10025527A1 (en) * | 2000-05-23 | 2001-11-29 | Man Nutzfahrzeuge Ag | Liquid-cooled cylinder liner for internal combustion engines |
| CN101413456A (en) * | 2008-11-11 | 2009-04-22 | 扬州华铁铁路配件有限公司 | Combined type platform reticulate pattern cylinder cover for engine |
| JP2014077365A (en) * | 2012-10-09 | 2014-05-01 | Mitsubishi Motors Corp | Gasket |
| CN204704018U (en) * | 2015-06-12 | 2015-10-14 | 嘉善新易能精密机械设备厂 | 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 |
| CN207018097U (en) * | 2017-06-30 | 2018-02-16 | 中船动力研究院有限公司 | A kind of new low-speed diesel engine cylinder jacket |
| CN108457764A (en) * | 2018-05-03 | 2018-08-28 | 哈尔滨工程大学 | A kind of wet liner with fin |
| CN209818176U (en) * | 2019-05-07 | 2019-12-20 | 哈尔滨工程大学 | Wet cylinder sleeve for ship low-speed diesel engine |
-
2019
- 2019-05-07 CN CN201910374568.2A patent/CN109958545A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5979374A (en) * | 1998-06-12 | 1999-11-09 | Cummins Engine Company, Inc. | Control cooled cylinder liner |
| DE10025527A1 (en) * | 2000-05-23 | 2001-11-29 | Man Nutzfahrzeuge Ag | Liquid-cooled cylinder liner for internal combustion engines |
| CN101413456A (en) * | 2008-11-11 | 2009-04-22 | 扬州华铁铁路配件有限公司 | Combined type platform reticulate pattern cylinder cover for engine |
| JP2014077365A (en) * | 2012-10-09 | 2014-05-01 | Mitsubishi Motors Corp | Gasket |
| CN204704018U (en) * | 2015-06-12 | 2015-10-14 | 嘉善新易能精密机械设备厂 | 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 |
| CN207018097U (en) * | 2017-06-30 | 2018-02-16 | 中船动力研究院有限公司 | A kind of new low-speed diesel engine cylinder jacket |
| CN108457764A (en) * | 2018-05-03 | 2018-08-28 | 哈尔滨工程大学 | A kind of wet liner with fin |
| CN209818176U (en) * | 2019-05-07 | 2019-12-20 | 哈尔滨工程大学 | Wet cylinder sleeve for ship low-speed diesel engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163324A (en) * | 2022-08-29 | 2022-10-11 | 潍柴动力股份有限公司 | Cylinder assembly and internal combustion engine |
| CN115163324B (en) * | 2022-08-29 | 2024-04-16 | 潍柴动力股份有限公司 | Cylinder assembly and internal combustion engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101349213A (en) | Water-cooled engine body | |
| EP2963275A1 (en) | Engine cylinder cooling cavity | |
| CN101002013A (en) | Lightweight piston comprising heat pipes | |
| CN208578650U (en) | A kind of motorcycle engine coolant circulation system and engine | |
| CN206770160U (en) | Compressor packing seals cooling structure | |
| CN108457764A (en) | A kind of wet liner with fin | |
| CN209818176U (en) | Wet cylinder sleeve for ship low-speed diesel engine | |
| CN109958545A (en) | A kind of wet liner for marine low speed diesel engine | |
| CN110080901B (en) | Wet cylinder jacket and engine cylinder | |
| CN210799157U (en) | Wet cylinder jacket with good heat transfer and sealing performance | |
| CN208203426U (en) | A kind of wet liner with fin | |
| CN108035816A (en) | The structure of V-type high-power engine jacket-cooling water chamber | |
| CN109958544A (en) | A kind of wet liner having good heat transfer and sealing performance | |
| CN209278014U (en) | Exhaust structure and engine | |
| CN206111358U (en) | Low carbon alloy material vanadium titanium cylinder block of motorcycle engine | |
| CN108757201A (en) | A kind of motorcycle engine coolant circulation system and engine | |
| CN219388021U (en) | Internal combustion engine cylinder sleeve for diesel engine | |
| CN208858467U (en) | A kind of cylinder of diesel engine cap double-layer water sleeve structure | |
| CN208619238U (en) | A kind of single cylinder diesel with cylinder jacket | |
| CN201666179U (en) | Internal combustion engine provided with enhanced heat distribution system | |
| CN208474014U (en) | A kind of marine low speed diesel engine piston comprising cooling device | |
| CN108035815A (en) | V-type engine cools down architecture | |
| CN104879197B (en) | A kind of exhaust pipe erecting device of injector | |
| CN203515830U (en) | Cylinder sleeve of air and water double-cooling type split single cylinder diesel | |
| CN208040535U (en) | High-power V-shaped 16 cylinder diesel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |