CN205001078U - Engine air cylinder body - Google Patents
Engine air cylinder body Download PDFInfo
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- CN205001078U CN205001078U CN201520696272.XU CN201520696272U CN205001078U CN 205001078 U CN205001078 U CN 205001078U CN 201520696272 U CN201520696272 U CN 201520696272U CN 205001078 U CN205001078 U CN 205001078U
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- cylinder
- water
- cylinder body
- water outlet
- water jacket
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- 239000000498 cooling water Substances 0.000 claims abstract description 30
- 208000010392 Bone Fractures Diseases 0.000 abstract 1
- 206010017076 Fracture Diseases 0.000 abstract 1
- 239000002352 surface water Substances 0.000 abstract 1
- 238000004457 water analysis Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 208000032443 Masked facies Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Abstract
The utility model discloses an engine air cylinder body, include the cylinder body body and set up in this internal water jacket structure of cylinder body that the cylinder body body has a plurality of jar holes and lies in the bolt hole around each jar hole, water jacket structure by set up in the jar hole with a plurality of cooling water courses between the bolt hole constitute, lie in to set up a closing member between two cooling water courses at cylinder body body both ends a closing member and extend to the top surface of cylinder body body. The utility model discloses an engine air cylinder body, inside water jacket structure adopt top semi -open type + bottom flighting schedule structural design, and the cooling water course lies in between jar hole and the bolt hole, reduce cylinder head bolt and tighten moment to the influence of jar bore deformation, avoid the bolt pretightning force to the stress action of water jacket inner compartment, improve the inside tired factor of safety of water jacket, reduce water jacket fracture risk, the terminal surface water jacket is regional around the cylinder block top surface seals, improves the rigidity of cylinder body top surface front and back end.
Description
Technical field
The utility model belongs to vehicular engine technical field, and specifically, the utility model relates to a kind of engine cylinder.
Background technique
Cylinder block is the kernel component of motor, is the skeleton of complete machine.The design of cylinder block affects the reliability of motor.
Traditional block jacket is designed with two kinds: open type water jacket and enclosed water jacket.Opened water Analysis of Nested Design is used for pack alloy cylinder body.The motor of this kind of opened water Analysis of Nested Design is adopted mostly to be the lower petrol engine of pressure of explosion.
Opened water Analysis of Nested Design can reduce the effect of cylinder bolt pretightening force to cylinder holes top, and making it be out of shape main manifestations is Second Order Deformation, and what the distortion of low order was conducive to that piston ring is out of shape cylinder holes makes up, and is conducive to sealing hydrocarbons in cylinder.But adopt opened water Analysis of Nested Design, cylinder deck rigidity is poor, during high temperature height detonation pressure, end face amount of deformation is comparatively large, and the gentle cylinder deck of head gasket easily produces contact separation, causes seal failure, occurs rushing cylinder pad.
Closed-up water Analysis of Nested Design can improve the rigidity of cylinder block end face, reduces because end face is out of shape the head gasket seal failure caused.But closed-up water Analysis of Nested Design makes bolt pretightening act directly on cylinder holes top, the middle and upper part of cylinder holes is made to find radial quadravalence distortion.More than the cylinder holes dynamic deformation on 3 rank, the elastic force of piston ring can be made to decline with engine on time, sealability decays, and causes machine oil to go upward to firing chamber, and cause piston air leakage large, oil consumption increases.Simultaneously because the erection stress of cylinder head bolt acts directly on water jacket internal face, easily cause water jacket inside to occur fatigue crack, cause motor to seep water.Simultaneously in order to improve cylinder holes distortion, cylinder head bolt designs more and more longer, at sustained height bottom bolt hole and water jacket, or will substantially exceed bottom water jacket.Adopt this kind of design can improve the multistage radial deformation in cylinder holes major part region, but water jacket is larger in crankcase join domain stiffness variation, higher order deformation is there will be in this regional area cylinder holes, cause piston air leakage large, the bolt pretightening simultaneously outside water jacket brings and heavily stressedly easily causes fatigue failure.
Model utility content
The utility model provides a kind of engine cylinder, the distortion of cylinder holes middle and upper part is improved the while that object being and ensureing cylinder block end face rigidity, reduce the cylinder pad seal failure that causes because of cylinder block end face poor rigidity and the piston air leakage caused greatly is large, engine oil consumption is high, wearing and tearing are abnormal because cylinder holes is out of shape, avoid occurring fatigue failure bottom the water jacket that causes because of bolt pretightening direct effect.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of engine cylinder, comprise cylinder body body and be arranged at the intrinsic jacket structure for water of cylinder body, the bolt hole that cylinder body body has multiple cylinder holes and is positioned at around each cylinder holes, described jacket structure for water is made up of the multiple cooling water channels be arranged between described cylinder holes and described bolt hole, first closure is set between two cooling water channels at cylinder body body two ends, the first closure and extend to the end face of cylinder body body.
Described jacket structure for water is formed with multiple first water outlet and multiple second water outlet at the end face of described cylinder body body, first water outlet and the second water outlet lay respectively at one between bolt hole and cylinder holes, first water outlet is arranged in the two ends of cylinder body body, second water outlet is arranged in the middle part of cylinder body body, between two the first water outlets that described first closure is respectively held at cylinder body body.
Described first water outlet is arc, and described second water outlet is man type, and two of the second water outlet arcuate segments lay respectively between a cylinder holes and same bolt hole.
Between described first water outlet and adjacent described second water outlet and between adjacent two the second water outlets, the second closure is all set.
Be the 3rd closure between adjacent two described cylinder holes, described second water outlet is positioned at the 3rd closure two ends.
The bottom of described jacket structure for water is undulating movement shape structure.
The bottom peak of described jacket structure for water is positioned at described cylinder holes central position, and the bottom minimum point of jacket structure for water is positioned at bolt hole bottom position place.
Engine cylinder of the present utility model, inner jacket structure for water adopts top semi-open type+bottom undulating type structural design, cooling water channel is between cylinder holes and bolt hole, reduce the impact that cylinder bolt screw-down torque is out of shape cylinder holes, avoid bolt pretightening to the effect of stress of water jacket inner region, improve the fatigue safety coefficient of water jacket inside, reduce water jacket cracking risk; Cylinder block end face front/rear end water jacket region is closed, and improves the rigidity of cylinder deck front end and back end.
Accompanying drawing explanation
Fig. 1 is the plan view of the utility model cylinder block;
Fig. 2 is the plan view of jacket structure for water;
Fig. 3 is the front view of jacket structure for water;
Fig. 4 is the front view of the utility model cylinder block;
Mark in above-mentioned figure is: 1, end face; 2, end face rear end; 3, the first water outlet; 4, bolt hole; 5, the second water outlet; 6, front end of the top surface; 7, cylinder block air inlet side; 8, water jacket water intake; 9, water jacket exhaust side; 10, bottom peak; 11, bottom minimum point; 12, cylinder head bolt boss; 13, water jacket wall; 14, Back Word type stiffening rib; 15, water jacket crankcase join domain; 16, crankcase; 17, the first cooling water channel; 18, the second cooling water channel; 19, the first closure; 20, the second closure; 21, the 3rd closure.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, be described in further detail embodiment of the present utility model, object helps those skilled in the art to have more complete, accurate and deep understanding to design of the present utility model, technological scheme, and contribute to its enforcement.
As shown in Figure 1 to Figure 4, the utility model provides a kind of engine cylinder, comprise cylinder body body and be arranged at the intrinsic jacket structure for water of cylinder body, cylinder body body has multiple cylinder holes and is positioned at the bolt hole 4 around each cylinder holes, jacket structure for water is made up of the multiple cooling water channels be arranged between cylinder holes and bolt hole 4, bolt region is separated with around cylinder holes by water jacket, makes cylinder head bolt pretightening force can not be directly delivered to cylinder holes top.Between two cooling water channels at cylinder body body two ends, the first closure 19 is set, first closure 19 and extend to the end face 1 of cylinder body body, also namely the front end of the top surface 6 in cylinder body body length direction and end face rear end 2 for closing, these two regions do not form water outlet, thus can improve the rigidity of cylinder block front/rear end.
As shown in Figure 2, jacket structure for water is mainly communicated with multiple second cooling water channel 18 cavity formed by multiple first cooling water channel 17, first cooling water channel 17 is arranged in the front end and back end of cylinder body body, second cooling water channel 18 is arranged in the central region of cylinder body body, between the first cooling water channel 17 of front-end and back-end.And first cooling water channel 17 and the second cooling water channel 18 be symmetrical arranged for symmetry plane with the plane at all cylinder holes axis places, arrange two the first cooling water channels 17 and two the second cooling water channels 18 respectively in the both sides of symmetry plane.In the same side of symmetry plane, the first cooling water channel 17 is connected with the second adjacent cooling water channel 18, and adjacent two the second cooling water channels 18 are also for being connected.Between two the first cooling water channels 17 that first closure 19 is respectively held at cylinder body body.As shown in Figure 1, first cooling water channel 17 of jacket structure for water and the second cooling water channel 18 are formed with the first water outlet 3 and the second water outlet 5 at the end face 1 of cylinder body body respectively, first water outlet 3 and the second water outlet 5 lay respectively between a bolt hole 4 and cylinder holes, first water outlet 3 is arranged in the two ends of cylinder body body, second water outlet 5 is arranged in the middle part of cylinder body body, between two the first water outlets 3 that the first closure 19 is respectively held at cylinder body body.The cross section of the first cooling water channel 17 is arc, the cross section of the second cooling water channel 18 is man type, first water outlet 3 of corresponding formation is arc, and the second water outlet 5 is man type, and two arcuate segments of the second water outlet 5 lay respectively between a cylinder holes and same bolt hole 4.
As shown in Figure 1, as preferably, between first water outlet 3 and the second adjacent water outlet 5 and all to arrange the second closure 20, second closure 20 between adjacent two the second water outlets 5 be extended towards cooling water channel inside from the end face 1 of cylinder body body, form stiffening rib.Because water hole upper in the middle of the first water outlet 3 of the second closure 20 both sides and the simple layout of the upper water sectional area ratio of the second water outlet 5 is large, water sectional area in cylinder head can be increased, increase cylinder head ridge area flow, avoid cylinder head ridge area temperature too high, reduce cylinder head body temperature.On cylinder body body, position between adjacent two cylinder holes is the 3rd closure 21, jacket structure for water does not form cavity in the 3rd closure 21, second water outlet 5 is positioned at the 3rd closure 21 two ends, cylinder block end face 1 enterprising exhaust side cylinder holes central region is closed, and forms the stiffening rib that can support end face 1.
As shown in Figure 1, the utility model cylinder block is semi-open type jacket structure for water, jacket structure for water is completely not unlimited on cylinder block end face 1, and the cylinder holes central region of jacket structure for water in cylinder block ear end face and cylinder block front-end face, cylinder body intake and exhaust side 7 is closed, disconnected at bolt hole 4 near zone.This design can reduce the effect of cylinder head bolt pretightening force to cylinder holes top, reduces upper quadravalence distortion in cylinder holes.
As shown in Figure 3 and Figure 4, the bottom of the jacket structure for water of the utility model cylinder block is undulating movement shape structure.The bottom peak 10 of jacket structure for water is positioned at cylinder holes central position, and the bottom minimum point 11 of jacket structure for water is positioned at bolt hole 4 bottom position place.Water jacket crankcase join domain 15 is had between block jacket wall 13 and crankcase 16, larger in this cylinder holes region rigidity sudden change, without even transition and effective support structure position in cylinder head bolt boss 12 position, the bi-side of cylinder body body are also provided with Back Word type stiffening rib 14, this Back Word type stiffening rib 14 connects cylinder block end face flange, comprise cylinder head bolt land area, through water jacket crankcase join domain 15, end at crankcase 16.Back Word type stiffening rib 14 improves the rigidity of water jacket and crankcase land area, decrease bolt pretightening to the active force bottom water sleeve cylinder holes, this zone machines stress amplitude is reduced, decrease multistage distortion bottom cylinder holes, improve fatigue safety coefficient bottom water jacket, reduce that piston air leakage is large, cylinder holes inordinate wear, scuffing of cylinder bore, oil consumption be large, the power failure risk such as ftracture bottom block jacket.
By reference to the accompanying drawings the utility model is exemplarily described above; obvious the utility model specific implementation is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technological scheme is carried out; or design of the present utility model and technological scheme directly applied to other occasion, all within protection domain of the present utility model without to improve.
Claims (7)
1. an engine cylinder, comprise cylinder body body and be arranged at the intrinsic jacket structure for water of cylinder body, the bolt hole that cylinder body body has multiple cylinder holes and is positioned at around each cylinder holes, it is characterized in that: described jacket structure for water is made up of the multiple cooling water channels be arranged between described cylinder holes and described bolt hole, first closure is set between two cooling water channels at cylinder body body two ends, the first closure and extend to the end face of cylinder body body.
2. engine cylinder according to claim 1, it is characterized in that: described jacket structure for water is formed with multiple first water outlet and multiple second water outlet at the end face of described cylinder body body, first water outlet and the second water outlet lay respectively at one between bolt hole and cylinder holes, first water outlet is arranged in the two ends of cylinder body body, second water outlet is arranged in the middle part of cylinder body body, between two the first water outlets that described first closure is respectively held at cylinder body body.
3. engine cylinder according to claim 2, is characterized in that: described first water outlet is arc, and described second water outlet is man type, and two of the second water outlet arcuate segments lay respectively between a cylinder holes and same bolt hole.
4. engine cylinder according to claim 2, is characterized in that: all arrange the second closure between described first water outlet and adjacent described second water outlet and between adjacent two the second water outlets.
5. engine cylinder according to claim 2, is characterized in that: be the 3rd closure between adjacent two described cylinder holes, described second water outlet is positioned at the 3rd closure two ends.
6., according to the arbitrary described engine cylinder of claim 1 to 5, it is characterized in that: the bottom of described jacket structure for water is undulating movement shape structure.
7. engine cylinder according to claim 6, is characterized in that: the bottom peak of described jacket structure for water is positioned at described cylinder holes central position, and the bottom minimum point of jacket structure for water is positioned at bolt hole bottom position place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520696272.XU CN205001078U (en) | 2015-09-09 | 2015-09-09 | Engine air cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520696272.XU CN205001078U (en) | 2015-09-09 | 2015-09-09 | Engine air cylinder body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205001078U true CN205001078U (en) | 2016-01-27 |
Family
ID=55157970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520696272.XU Active CN205001078U (en) | 2015-09-09 | 2015-09-09 | Engine air cylinder body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205001078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486177A (en) * | 2017-08-29 | 2019-11-22 | 熵零技术逻辑工程院集团股份有限公司 | A kind of high detonation pressure engine |
-
2015
- 2015-09-09 CN CN201520696272.XU patent/CN205001078U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486177A (en) * | 2017-08-29 | 2019-11-22 | 熵零技术逻辑工程院集团股份有限公司 | A kind of high detonation pressure engine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |