CN105909416B - A kind of environment-friendly type cylinder jacket of anti-cavitation pitting - Google Patents
A kind of environment-friendly type cylinder jacket of anti-cavitation pitting Download PDFInfo
- Publication number
- CN105909416B CN105909416B CN201610385649.9A CN201610385649A CN105909416B CN 105909416 B CN105909416 B CN 105909416B CN 201610385649 A CN201610385649 A CN 201610385649A CN 105909416 B CN105909416 B CN 105909416B
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- Prior art keywords
- wearing ring
- cylinder jacket
- liner body
- environment
- wall
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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
- F02F1/004—Cylinder liners
-
- 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
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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 discloses a kind of environment-friendly type cylinder jacket of anti-cavitation pitting, including cylinder liner body, waterway wall enhancing structure is provided on the waterway wall of the cylinder liner body, waterway wall enhancing structure includes the enhancing set for surrounding the setting of waterway wall outer peripheral surface, the inner peripheral surface of enhancing set is fixedly connected with the wall surface of waterway wall, the outer peripheral surface of enhancing set is set as the conical surface, the wall surface junction smooth transition of the conical surface and waterway wall；It is provided with washer at the branch brace shoulder lower end surface of the cylinder liner body, washer is set on the cylinder liner body.Invention increases cylinder jacket overall stiffness, vibration when reducing cylinder jacket work carrys out anti-cavitation pitting to realize.
Description
Technical field
The present invention relates to automotive engine applications, and in particular to a kind of environment-friendly type cylinder jacket of anti-cavitation pitting.
Background technique
Cylinder jacket is a cylindrical component, is placed in the cylinder body opening of body, on be fixed by cylinder head.Piston exists
Its inner hole is reciprocating, outer to have cooling water cooling.The function of cylinder jacket has: 1. collectively form cylinder work with cylinder cap, piston
Make space.2. the cylinder jacket of trunk piston diesel bears side thrust of piston, become the lead of reciprocating motion of the pistons.3. by piston
Component and the heat of itself are transmitted to cooling water, and it is appropriate to be allowed to operating temperature.4. the cylinder jacket of two stroke diesel engine is disposed with port,
It is opened and closed by piston, realizes distribution.
Cylinder sleeve waterway wall play within the engine by engine cooling water and its appearance face contact to because of gasoline or
Diesel oil overheat caused by compression knock in cylinder sleeve carries out cooling important function.The design of existing cylinder jacket water channel wall thickness compared with
Thin, under our national road actual conditions, often there is cave in the frequent high load capacity work of engine, air cylinder sleeve of engine waterway wall
Lose phenomenon.
Cavitation pitting is a kind of special shape of corrosion, it is the product that physical damage and chemical depletion combine, engine cool
Cast iron cylinder cover outer wall in system often occurs, ignition in engine combustion room, and piston is with biggish power " slap "
Cylinder sleeve, cylinder sleeve high vibration, when to the vibration of coolant liquid direction is left, formation one is low between coolant liquid on the outside of cylinder sleeve for meeting
Pressure area, coolant liquid gasifies to form bubble in low-pressure area, and when to vibrating close to coolant liquid direction, low pressure bubble is stressed upon outside cylinder sleeve
Fierce explosion occurs for wall, and pressure is up to 60000ps(about 420MPa).Continuous vibration makes bubble continuously explode, outside cylinder jacket
Wall material fatigue falls off, and the outer wall of cylinder jachet that goes down for a long time generates many apertures, and the bubble then generated is easily stagnant at these apertures
It stays, then bubble continues to rupture, and expands original hole constantly imposing manner, what is had penetrates cylinder sleeve, and cylinder jacket outer surface is formed
Honeycomb cavitation pitting.
In addition, existing cylinder jacket, there is also fuel burning is insufficient, carbon distribution is more, and carbon distribution can cause abrasive wear,
Influence the service life of internal combustion engine.
Summary of the invention
The present invention provides a kind of environment-friendly type cylinder jacket of anti-cavitation pitting, increases to solve shortcoming in the prior art
Cylinder jacket overall stiffness, vibration when reducing cylinder jacket work, to realize carrys out anti-cavitation pitting, two or seven its fuel burning can be made to fill
Point, it reduces carbon distribution and reduces the abrasive wear due to caused by carbon distribution, extend the service life of internal combustion engine.
In order to solve the above technical problems, the present invention adopts the following technical scheme: a kind of environment-friendly type cylinder jacket of anti-cavitation pitting, packet
Cylinder liner body is included, waterway wall enhancing structure is provided on the waterway wall of the cylinder liner body, waterway wall enhancing structure includes
Around the enhancing set of waterway wall outer peripheral surface setting, the inner peripheral surface for enhancing set is fixedly connected with the wall surface of waterway wall, enhances the outer of set
Circumferential surface is set as the conical surface, the wall surface junction smooth transition of the conical surface and waterway wall；The branch brace shoulder lower end of the cylinder liner body
Washer is provided at face, washer is set on the cylinder liner body.
The branch brace shoulder inner hole part of the cylinder liner body is equipped with wearing ring, wearing ring outer circle and the cylinder liner body
In clearance fit；The upper surface of wearing ring is higher by branch brace shoulder upper surface and forms cylinder jacket boss, the upper surface of wearing ring and cylinder
Lid end face matches；Wearing ring is higher by outer circle position and the head gasket inner hole of branch brace shoulder upper surface；The inner hole of wearing ring is set
It is equipped with reticulate pattern, the texture of the reticulate pattern helically line shape.
The upper and lower ends of the inner hole of the wearing ring are provided with chamfering.
The chamfering of the upper and lower ends of the inner hole of the wearing ring is identical, and is acute angle.
The upper surface of the wearing ring is higher by branch brace shoulder upper surface 1.12mm~1.30mm；The outside diameter of wearing ring is
119mm~119.25mm；The height of wearing ring is 8.5mm~10mm；Wearing ring diameter of bore is 113mm~113.8mm, wear-resistant
Ring diameter of bore is 0.2mm~1mm smaller than the cylinder liner body diameter of bore.
The conical surface of the enhancing set is towards the upper end of the cylinder liner body.
The washer selects copper packing.
The wearing ring is made of gray cast iron material.
Logo slot is machined at the skirt section outer circle of the cylinder liner body.
The axial length of the enhancing set is 40mm, and the axial width of washer is 0.813mm.
The beneficial effects of the present invention are:
1, the environment-friendly type cylinder jacket of anti-cavitation pitting of the invention enhances design and cylinder jacket support shoulders lower end surface by waterway wall
Increase by two kinds of structure designs of copper packing, increase cylinder jacket overall stiffness, vibration when reducing cylinder jacket work comes anti-cave to realize
Erosion, and above two design is realized on the basis of not changing engine design.
2, waterway wall enhancing structure is provided on the waterway wall of the cylinder liner body, waterway wall enhancing structure includes surrounding
The enhancing set of waterway wall outer peripheral surface setting, the inner peripheral surface for enhancing set are fixedly connected with the wall surface of waterway wall, enhance the outer peripheral surface of set
It is set as the conical surface, the wall surface junction smooth transition of the conical surface and waterway wall, waterway wall enhancing design is in cylinder jacket waterway wall
A conical surface is designed at the position for cavitation pitting occur, both can increase the intensity at this position in this way, and be hit production when reducing cylinder jacket work
Raw Oscillation Amplitude, and coolant liquid water flow can be made to change, reduce the bump of water hole position water flow and increase cooling effect.
3, it is provided with washer at the branch brace shoulder lower end surface of the cylinder liner body, washer is set in the cylinder liner body
On, washer selects copper packing, by designing a copper packing in cylinder jacket support shoulders lower end surface, using the good ductility of copper product,
Reduce the Oscillation Amplitude in the air cylinder sleeve of engine course of work.
4, the wearing ring and matched gas cylinder liner body for being assemblied in branch brace shoulder inner hole part combine, wearing ring outer circle
Cooperate with gas cylinder liner body in small―gap suture, fuel burning can be made abundant, reduces carbon distribution and reduce and ground due to caused by carbon distribution
Grain abrasion, extends the service life of internal combustion engine.
The upper surface of wearing ring is higher by 1.12mm to 1.30mm above cylinder jacket support shoulders, instead of the boss of cylinder jacket, end face
Cooperate with cylinder cap end face；The outside diameter of wearing ring is 119mm to 119.25mm, makes outer circle and head gasket inner hole；It is wear-resistant
The height of ring is 8.5mm to 10mm；Wearing ring diameter of bore is 113mm-113.8mm, 0.2mm smaller than cylinder cover inner hole diameter extremely
1mm；The inner bore chamfering position of wearing ring requires to retain acute angle；The material selection common grey iron material of wearing ring；Wearing ring
Surfaces externally and internally is once got on the bus by numerical control lathe and is process, and not only ensure that the concentricity of inside and outside circle but also has guaranteed inner hole texture helically line
Shape.Cylinder cover inner hole reticulate pattern are as follows: Rpk<0.25um, Rk<0.5um, Rvk:1.5-2.5um, Rvk/Rk>2.Wearing ring inner hole reticulate pattern
Using thin plateau honing cross hatches, groove is more and shallow, can either guarantee that inner hole lubrication needs to be avoided that Excess lubricating oil participates in combustion again
It burns, reduces the discharge of oxynitrides.Due to the boring ratio cylinder sleeve bore diameter in the wearing ring of cylinder jacket support shoulders mounted inside
It is small, lubricating oil extra when piston ring uplink can be hindered to participate in burning, and can hinder to exercise lubricating oil evil under high-temperature fuel gas
Change rotten.When the carbon distribution of wear-resistant annular groove inner wall reaches certain thickness, it can utilize and extra carbon distribution is blown when piston crown uplink
Cylinder jacket out can effectively avoid abrasive wear, improve cylinder jacket service life.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is A-A diagrammatic cross-section in Fig. 1.
Specific embodiment
As depicted in figs. 1 and 2, the environment-friendly type cylinder jacket of a kind of anti-cavitation pitting of the invention, including cylinder liner body 1, it is described
Waterway wall enhancing structure is provided on the waterway wall 11 of cylinder liner body 1, waterway wall enhancing structure includes outside waterway wall 11
The enhancing set 12 of circumferential surface setting, the inner peripheral surface of enhancing set 12 are fixedly connected with the wall surface of waterway wall 11, the outer peripheral surface of enhancing set 12
It is set as the conical surface, for the conical surface towards the upper end of the cylinder liner body 1, the wall surface junction of the conical surface and waterway wall 11 is smoothed
It crosses.Washer 2 is provided at 13 lower end surface of branch brace shoulder of the cylinder liner body 1, washer 2 selects copper packing, and washer 2 is set in described
On cylinder liner body 1.
The axial length H1 of the enhancing set 12 is 40mm, and the axial width H2 of washer 2 is 0.813mm.
The 13 shoulder inner hole part of support of the cylinder liner body 1 is equipped with wearing ring 3,3 outer circle of wearing ring and cylinder jacket sheet
Body 1 is in clearance fit；The upper surface of wearing ring 3 is higher by 13 upper surface of branch brace shoulder and forms cylinder jacket boss, the upper end of wearing ring 3
Face is matched with cylinder cap end face；Wearing ring 3 is higher by outer circle position and the head gasket inner hole of 13 upper surface of branch brace shoulder；Wearing ring
3 inner hole is provided with reticulate pattern, the texture of the reticulate pattern helically line shape.
The upper and lower ends of the inner hole of the wearing ring 3 are provided with chamfering 31, and the chamfering 31 of upper and lower ends is identical, and is
Acute angle.
The distance d4 that the upper surface of the wearing ring 3 is higher by 13 upper surface of branch brace shoulder is 1.12mm~1.30mm；Wearing ring 3
Outside diameter d1 be 119mm~119.25mm；The height d3 of wearing ring 3 is 8.5mm~10mm；3 diameter of bore d2 of wearing ring
For 113mm~113.8mm, 3 diameter of bore of wearing ring is 0.2mm~1mm smaller than 1 diameter of bore of cylinder liner body.
It is machined with logo slot 4 at the skirt section outer circle of the cylinder liner body 1, supports in cylinder liner body 1 and is equipped at outer circle
The Sign Board 5 of identified patents number.
The environment-friendly type cylinder jacket of anti-cavitation pitting of the invention enhances design by waterway wall and cylinder jacket support shoulders lower end surface increases
Add two kinds of structure designs of copper packing, increase cylinder jacket overall stiffness, vibration when reducing cylinder jacket work comes anti-cave to realize
Erosion, and above two design is realized on the basis of not changing engine design.
It is provided with waterway wall enhancing structure on the waterway wall 11 of cylinder liner body 1, waterway wall enhancing design is in waterway wall
A conical surface is designed at 11 positions for cavitation pitting occur, both can increase the intensity at this position in this way, is hit when reducing cylinder jacket work
Oscillation Amplitude is generated, and coolant liquid water flow can be made to change, reduce the bump of water hole position water flow and increases cooling effect
Fruit.
It is provided with washer 2 at 13 lower end surface of branch brace shoulder of cylinder liner body 1, washer 2 is set on the cylinder liner body,
Washer 2 selects copper packing, is subtracted by designing a copper packing in cylinder jacket support shoulders lower end surface using the good ductility of copper product
Oscillation Amplitude in few air cylinder sleeve of engine course of work.
The wearing ring 3 and matched gas cylinder liner body 1 for being assemblied in 13 inner hole part of branch brace shoulder combine, wearing ring 3
Outer circle and gas cylinder liner body 1 cooperate in small―gap suture, and fuel burning can be made abundant, reduce carbon distribution and reduce since carbon distribution causes
Abrasive wear, extend the service life of internal combustion engine.
The upper surface of wearing ring 3 is higher by 13 upper surface 1.12mm to 1.30mm of branch brace shoulder, wear-resistant instead of the boss of cylinder jacket
The upper surface and cylinder cap end face of ring 3 cooperate；The outside diameter of wearing ring 3 is 119mm to 119.25mm, is made in outer circle and head gasket
Hole cooperation；The height of wearing ring 3 is 8.5mm to 10mm；3 diameter of bore of wearing ring is 113mm to 113.8mm, than in cylinder jacket
Bore dia small 0.2mm to 1mm；The inner bore chamfering position of wearing ring 3 requires to retain acute angle；The material selection of wearing ring 3 is commonly grey
Cast iron materials；The surfaces externally and internally of wearing ring is once got on the bus by numerical control lathe to be process, and not only ensure that the concentricity of inside and outside circle but also has been protected
Demonstrate,prove inner hole texture helically line shape.
Cylinder cover inner hole reticulate pattern are as follows: Rpk<0.25um, Rk<0.5um, Rvk:1.5-2.5um, Rvk/Rk>2.
Wearing ring inner hole reticulate pattern uses thin plateau honing cross hatches, and groove is more and shallow, can either guarantee that inner hole lubrication needs again
It is avoided that Excess lubricating oil participates in burning, reduces the discharge of oxynitrides.Due in the anti-of cylinder jacket support shoulders mounted inside
Boring ratio cylinder sleeve bore diameter is small in bull ring, lubricating oil extra when piston ring uplink can be hindered to participate in burning, and can hinder
It is rotten that lubricating oil deterioration is exercised under high-temperature fuel gas.When the carbon distribution of wear-resistant annular groove inner wall reaches certain thickness, piston can be utilized
Extra carbon distribution is blown out cylinder jacket when the uplink of head, can effectively avoid abrasive wear, improves cylinder jacket service life.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although referring to above-described embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that: still the present invention can be modified or be waited
With replacement, without departing from the spirit or scope of the invention, or any substitutions, should all cover in power of the invention
In sharp claimed range.
Claims (9)
1. a kind of environment-friendly type cylinder jacket of anti-cavitation pitting, including cylinder liner body, it is characterised in that: the water channel of the cylinder liner body
Waterway wall enhancing structure is provided on wall, waterway wall enhancing structure includes the enhancing set for surrounding the setting of waterway wall outer peripheral surface, enhancing
The inner peripheral surface of set is fixedly connected with the wall surface of waterway wall, and the outer peripheral surface for enhancing set is set as the conical surface, the wall of the conical surface and waterway wall
The smooth transition of face junction；It is provided with washer at the branch brace shoulder lower end surface of the cylinder liner body, washer is set in the cylinder
It covers on ontology；
The conical surface of the enhancing set is towards the upper end of the cylinder liner body.
2. the environment-friendly type cylinder jacket of anti-cavitation pitting according to claim 1, it is characterised in that: the support of the cylinder liner body
Shoulder inner hole part is equipped with wearing ring, and wearing ring outer circle and the cylinder liner body are in clearance fit；The upper surface of wearing ring is high
Branch brace shoulder upper surface and cylinder jacket boss is formed out, the upper surface of wearing ring is matched with cylinder cap end face；Wearing ring is higher by support
The outer circle position of shoulder upper surface and head gasket inner hole；The inner hole of wearing ring is provided with reticulate pattern, and the texture of the reticulate pattern is helically
Line shape.
3. the environment-friendly type cylinder jacket of anti-cavitation pitting according to claim 2, it is characterised in that: the inner hole of the wearing ring it is upper
Lower both ends are provided with chamfering.
4. the environment-friendly type cylinder jacket of anti-cavitation pitting according to claim 3, it is characterised in that: the inner hole of the wearing ring it is upper
The chamfering at lower both ends is identical, and is acute angle.
5. the environment-friendly type cylinder jacket of the anti-cavitation pitting according to Claims 2 or 3 or 4, it is characterised in that: the wearing ring it is upper
End face is higher by branch brace shoulder upper surface 1.12mm~1.30mm；The outside diameter of wearing ring is 119mm~119.25mm；Wearing ring
Height is 8.5mm~10mm；Wearing ring diameter of bore is 113mm~113.8mm, and wearing ring diameter of bore is than the cylinder jacket sheet
Small 0.2mm~the 1mm of internal bore dia.
6. the environment-friendly type cylinder jacket of anti-cavitation pitting according to claim 1, it is characterised in that: the washer selects copper packing.
7. environment-friendly type cylinder jacket according to claim 2, it is characterised in that: the wearing ring is made of gray cast iron material.
8. the environment-friendly type cylinder jacket of anti-cavitation pitting according to claim 1, it is characterised in that: the skirt section of the cylinder liner body
Logo slot is machined at outer circle.
9. the environment-friendly type cylinder jacket of anti-cavitation pitting according to claim 1, it is characterised in that: the axial length of the enhancing set
For 40mm, the axial width of washer is 0.813mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610385649.9A CN105909416B (en) | 2016-06-03 | 2016-06-03 | A kind of environment-friendly type cylinder jacket of anti-cavitation pitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610385649.9A CN105909416B (en) | 2016-06-03 | 2016-06-03 | A kind of environment-friendly type cylinder jacket of anti-cavitation pitting |
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| Publication Number | Publication Date |
|---|---|
| CN105909416A CN105909416A (en) | 2016-08-31 |
| CN105909416B true CN105909416B (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610385649.9A Active CN105909416B (en) | 2016-06-03 | 2016-06-03 | A kind of environment-friendly type cylinder jacket of anti-cavitation pitting |
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| CN205689311U (en) * | 2016-06-03 | 2016-11-16 | 河南省中原华工激光工程有限公司 | A kind of environment-friendly type cylinder jacket of anti-cavitation pitting |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01247743A (en) * | 1988-03-29 | 1989-10-03 | Nissan Motor Co Ltd | Cylinder block |
| CN203641485U (en) * | 2013-12-23 | 2014-06-11 | 安庆帝伯格茨缸套有限公司 | Cavitation erosion resistant cylinder sleeve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202215388U (en) * | 2011-09-19 | 2012-05-09 | 潍柴动力股份有限公司 | Engine and cavitation-resistant wet type cylinder sleeve thereof |
| CN104781529A (en) * | 2012-05-21 | 2015-07-15 | 标致·雪铁龙汽车公司 | Cylinder liner and associated cylinder block |
| CN202746023U (en) * | 2012-08-25 | 2013-02-20 | 安徽白兔湖动力有限公司 | Surface-copperized air cylinder jacket |
| CN204511683U (en) * | 2015-03-09 | 2015-07-29 | 洪泽县华晨机械有限公司 | Internal-combustion engine cylinder liner |
| CN205172743U (en) * | 2015-09-21 | 2016-04-20 | 东风康明斯发动机有限公司 | Increase wet liner on nitrogen treatment layer |
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| CN105909416A (en) | 2016-08-31 |
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