CN107044356A - The jacket structure for water of the valve diesel of four cylinder two - Google Patents
The jacket structure for water of the valve diesel of four cylinder two Download PDFInfo
- Publication number
- CN107044356A CN107044356A CN201611258124.5A CN201611258124A CN107044356A CN 107044356 A CN107044356 A CN 107044356A CN 201611258124 A CN201611258124 A CN 201611258124A CN 107044356 A CN107044356 A CN 107044356A
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- Prior art keywords
- cylinder
- water jacket
- water
- jacket
- holes
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- 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.)
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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
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of jacket structure for water of the valve diesel of four cylinder two, including cylinder holes water jacket and cylinder cover water jacket, cylinder holes water jacket includes the first cylinder water jacket, second cylinder water jacket, 3rd cylinder water jacket and the 4th cylinder water jacket, diesel engine temperature saving device is used for being positioned close to the first cylinder water jacket and the second cylinder water jacket position, the height of the water jacket cavity of cylinder holes water jacket is 70% the 80% of piston stroke, it is connected between adjacent cylinder holes water jacket by mach through hole, the front side bottom of cylinder holes water jacket is provided with inlet opening corresponding with cylinder holes, upper water hole between cylinder holes water jacket and cylinder cover water jacket is located at the rear side top of the 3rd cylinder water jacket and the 4th cylinder water jacket, the latter half of the outboard chambers of first cylinder water jacket and the 4th cylinder water jacket disconnects.The jacket structure for water, resistance is small, and flow velocity is high, and cooling is uniform, ridge area good heat dissipation.
Description
Technical field
The present invention relates to the water jacket of diesel engine, more particularly to a kind of jacket structure for water of the valve diesel of four cylinder two.
Background technology
Cylinder jacket is the core of diesel engine cooling system, is circulated by coolant, it is ensured that engine is in normal temperature
Degree is lower to be worked, and the heat produced when engine is worked is distributed in time, improves cylinder block, the reliability of cylinder head.But
Non-rice habitats engine body arrangement space is compact, and operating mode is complicated, and the high phenomenon of water temperature often occurs.This cooling system to diesel engine
System has higher requirement, it is necessary to necessary to Cooling Water Jacket in Diesel Engine progress to optimize and revise, and can just make diesel engine normal work.Tradition
Non-rice habitats engine water jacket design comparison it is random, unreasonable.CFD analyses and the local high hot-zone of consideration not Jing Guo system
Radiating, cause resistance to water-flow excessive, inhomogeneous cooling is even, flow velocity is low, it is high that this directly results in diesel engine water temperature, accelerates diesel engine sheet
The abrasion of body, reduces the life-span of diesel engine.
Traditional valve diesel of 4 cylinder 2 typically all (flows to front end, to section using vertical stream without outfall sewer from rear end
Warm device backwater), with continuing to develop for diesel technology, in especially compact diesel engine size and cylinder, explosion pressure is not
Disconnected to improve, operating condition is more severe, and there are the following problems for the design of its water jacket：
1. intake-outlet position is relatively low, water jacket excessive height, in uneven thickness, it is unfavorable for cylinder block top high heat load area
Radiating；
2. water-bound is identical on distributed water feeding mode, each cylinder, flow rate of water flow is low；
3. cylinder head ridge area, exhaust duct environment temperature are too high；
4. the water jacket between liang cylinder is thicker, circulation area increase, flow rate of water flow is low.
The information for being disclosed in the background section is merely intended to understanding of the increase to the general background of the present invention, without answering
When the prior art for being considered as recognizing or implying the information structure in any form well known to persons skilled in the art.
The content of the invention
It is an object of the invention to provide a kind of jacket structure for water of the valve diesel of four cylinder two, resistance is small, and flow velocity is high, cooling
Uniformly, ridge area good heat dissipation.
To achieve the above object, the invention provides a kind of jacket structure for water of the valve diesel of four cylinder two, including cylinder holes water
Set and cylinder cover water jacket, cylinder holes water jacket include the first cylinder water jacket, the second cylinder water jacket, the 3rd cylinder water jacket and the 4th cylinder water jacket, diesel engine
Thermostat is used for being positioned close to the first cylinder water jacket and the second cylinder water jacket position, and the height of the water jacket cavity of cylinder holes water jacket is piston
Be connected between the 70%-80% of stroke, adjacent cylinder holes water jacket by mach through hole, the front side bottom of cylinder holes water jacket be provided with
The corresponding inlet opening of cylinder holes, the upper water hole between cylinder holes water jacket and cylinder cover water jacket is located at after the 3rd cylinder water jacket and the 4th cylinder water jacket
The latter half of the outboard chambers of side top, the first cylinder water jacket and the 4th cylinder water jacket disconnects.
Preferably, the cavity of cylinder cover water jacket extends into the bridge of the nose zone position between intake and exhaust and forms jetting road.
Preferably, jetting road extends to the front end of bridge of the nose zone position.
Preferably, through hole is two, and two through holes cross one another.
Preferably, two through holes are orthogonal.
A diameter of 4-6mm of through hole.
Compared with prior art, the present invention has the advantages that：By optimizing the structure of water jacket, water jacket is rationally designed
Height and water inlet position, reduce a part to the less water jacket circulation area of radiating influence, accelerate water velocity, effectively change
The heat exchange of kind ridge area Deng Gao hot-zones, makes each cylinder traffic flow uniform, improves the cooling effect of diesel engine, and that improves diesel engine can
By property.Also by the water jacket cancelled between two cylinders, shorten cylinder centre line spacing, it is possible to reduce the length and weight of body, improve bavin
The suitability of oil machine.
Brief description of the drawings
Fig. 1 is the core schematic diagram of cylinder holes water jacket in the jacket structure for water according to the valve diesel of four cylinder two of the present invention, its
In the structure of through hole is shown；
Fig. 2 is the core schematic diagram of cylinder cover water jacket in the jacket structure for water according to the valve diesel of four cylinder two of the present invention；
Fig. 3 is the assembly of sand core schematic diagram of the jacket structure for water of the valve diesel of four cylinder two according to the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment to the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other members
Part or other parts.
As shown in Figure 1 to Figure 3, according to a kind of water jacket knot of valve diesel of four cylinder two of the specific embodiment of the invention
Structure, including cylinder holes water jacket 1 and cylinder cover water jacket 11.Wherein cylinder holes water jacket 1 includes the first cylinder water jacket, the second cylinder water jacket, the 3rd cylinder water
Set and the 4th cylinder water jacket, diesel engine temperature saving device are used for being positioned close to the first cylinder water jacket and the second cylinder water jacket position, cylinder holes water jacket 1
Water jacket cavity height be piston stroke 70%-80%, be connected by mach through hole 2 between adjacent cylinder holes water jacket,
The front side bottom of cylinder holes water jacket 1 is provided with inlet opening 5 corresponding with cylinder holes, the upper water hole 3 between cylinder holes water jacket 1 and cylinder cover water jacket 11
It is located at the rear side top of the 3rd cylinder water jacket and the 4th cylinder water jacket, the lower half of the outboard chambers of the first cylinder water jacket and the 4th cylinder water jacket
Disjunction is opened, and shows that corresponding position is breach 6 in water jacket in Fig. 1.
As a kind of preferred embodiment, the cavity of cylinder cover water jacket 11 is extended into and shape to the bridge of the nose zone position between intake and exhaust
Into jetting road 7 (participation Fig. 2).
As a kind of preferred embodiment, jetting road 7 extends to the front end of bridge of the nose zone position.
As a kind of preferred embodiment, through hole 2 is two, and two through holes cross one another.
It is used as a kind of preferred embodiment, two through holes 2 orthogonal (participation Fig. 1).
It is used as a kind of preferred embodiment, a diameter of 4-6mm of through hole 2.
In such scheme, the height of the corresponding water jacket 4 of cylinder holes water jacket 1 is the 70%-80% of piston stroke, is preferably designed for
The 80% of piston stroke, the height of general water jacket 4 is 96mm, and thickness is preferably to be evenly arranged.So, can be the phase of inlet opening 5
Raised for the position of cylinder block, be conducive to cylinder block top high heat load area to radiate, accelerate water velocity, it is ensured that cylinder block is equal
Even cooling.In addition, the water jacket between two traditional cylinders is cancelled, by machining, such as drill, form through hole 2, so both may be used
To reduce diesel-engine body casting technique difficulty, it is possible to reduce cylinder centre line spacing, the length and weight of cylinder block are reduced, can be with
Cylinder block water circulation area is reduced, accelerates water velocity, heat is quickly led out from cylinder block.Preferably two phases of through hole 2
Mutually intersect, analyzed according to CFD, the radius of through hole 2 is 4-6mm, and when intersecting angle is 90 °, cooling effect is preferable.By reducing the
1st, the water jacket section breach 6 of 4 cylinders, reduces water jacket two ends cavity area, can accelerate the water velocity of 1,4 cylinders.Further, due to this
Diesel engine does not have outfall sewer, and the current trend of cylinder cover water jacket 11 (flows, finally from thermostat for vertical stream from rear end toward front end
Backwater), in order to ensure that each cylinder is uniformly cooled down, change the upper outlet hole structure of existing each cylinder, each cylinder of conventional diesel engine it is upper
Water hole quantity is identical, and this programme changes body each by cancelling the water hole in the 1st, 2 cylinder air inlet sides of thermostat water exit position
The water-carrying capacity of cylinder, makes water in the cylinder head of rear end more, it is ensured that the uniform cooling of each cylinder of cylinder head.
As shown in Fig. 2 the cooling in order to ensure cylinder head ridge area, increases jetting road 7, this jetting on cylinder cover water jacket 11
Road 7 extends to jetting road 7 front end of ridge area to strengthen the cooling effect of ridge area.Current direction nose can so be guided
Deck-molding hot-zone is flowed, and by reducing the circulation area of a part, improves flow velocity, makes the water-carrying capacity increase by ridge area, improves
Heat exchange.
To sum up, the jacket structure for water of the valve diesel of four cylinder two of the present embodiment, in order to improve the cooling effect of diesel engine,
The type of cooling of water in distribution is not changed, by optimizing the structure of water jacket, rationally design water jacket height and water inlet position, subtract
A few part accelerates water velocity, effectively improves ridge area Deng Gao hot-zones on the less water jacket circulation area of radiating influence
Heat exchange, makes each cylinder traffic flow uniform, improves the cooling effect of diesel engine, improves the reliability of diesel engine.Also by cancellation
Water jacket between two cylinders, shortens cylinder centre line spacing, it is possible to reduce the length and weight of body, improves the suitability of diesel engine.
It is foregoing to the present invention specific illustrative embodiment description be in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that the certain principles and its reality of the present invention should
With so that those skilled in the art can realize and using the present invention a variety of exemplaries and
A variety of selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (6)
1. a kind of jacket structure for water of the valve diesel of four cylinder two, including cylinder holes water jacket and cylinder cover water jacket, the cylinder holes water jacket include
First cylinder water jacket, the second cylinder water jacket, the 3rd cylinder water jacket and the 4th cylinder water jacket, diesel engine temperature saving device are used for being positioned close to described the
One cylinder water jacket and the second cylinder water jacket position, it is characterised in that the height of the water jacket cavity of the cylinder holes water jacket is piston row
It is connected between the 70%-80% of journey, adjacent cylinder holes water jacket by mach through hole, the front side bottom of the cylinder holes water jacket is provided with
Inlet opening corresponding with cylinder holes, the upper water hole between the cylinder holes water jacket and the cylinder cover water jacket be located at the 3rd cylinder water jacket and
The lower half disjunction of the outboard chambers of the rear side top of the 4th cylinder water jacket, the first cylinder water jacket and the 4th cylinder water jacket
Open.
2. the jacket structure for water of the valve diesel of four cylinder two according to claim 1, it is characterised in that the cylinder cover water jacket
Cavity extends into the bridge of the nose zone position between intake and exhaust and forms jetting road.
3. the jacket structure for water of the valve diesel of four cylinder two according to claim 2, it is characterised in that the jetting road extension
To the front end of the bridge of the nose zone position.
4. the jacket structure for water of the valve diesel of four cylinder two according to claim 3, it is characterised in that the through hole is two
Individual, two through holes cross one another.
5. the jacket structure for water of the valve diesel of four cylinder two according to claim 4, it is characterised in that described two through holes are mutual
It is perpendicular.
6. the jacket structure for water of the valve diesel of four cylinder two according to claim 5, it is characterised in that the diameter of the through hole
For 4-6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611258124.5A CN107044356A (en) | 2016-12-30 | 2016-12-30 | The jacket structure for water of the valve diesel of four cylinder two |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611258124.5A CN107044356A (en) | 2016-12-30 | 2016-12-30 | The jacket structure for water of the valve diesel of four cylinder two |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107044356A true CN107044356A (en) | 2017-08-15 |
Family
ID=59543221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611258124.5A Pending CN107044356A (en) | 2016-12-30 | 2016-12-30 | The jacket structure for water of the valve diesel of four cylinder two |
Country Status (1)
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| CN (1) | CN107044356A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313870A (en) * | 2017-08-25 | 2017-11-03 | 奇瑞汽车股份有限公司 | Water jacket of engine cylinder |
| CN107989711A (en) * | 2017-12-27 | 2018-05-04 | 广西玉柴机器股份有限公司 | The cooling jacket of Multi-cylinder diesel engine cylinder body |
| CN110273776A (en) * | 2019-07-02 | 2019-09-24 | 广西玉柴机器股份有限公司 | A kind of cooling cylinder head of layering |
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| CN105937461A (en) * | 2015-03-04 | 2016-09-14 | 通用汽车环球科技运作有限责任公司 | A water jacket for an internal combustion engine |
| CN106111912A (en) * | 2016-08-31 | 2016-11-16 | 广西玉柴机器股份有限公司 | For casting the core group of integrated form Composite cylinder lid |
| CN206290342U (en) * | 2016-12-30 | 2017-06-30 | 广西玉柴机器股份有限公司 | The jacket structure for water of the valve diesel of four cylinder two |
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2016
- 2016-12-30 CN CN201611258124.5A patent/CN107044356A/en active Pending
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| CN204041253U (en) * | 2014-06-30 | 2014-12-24 | 长城汽车股份有限公司 | The cylinder body water jacket structure of multi cylinder in upright arrangement |
| CN104314698A (en) * | 2014-10-20 | 2015-01-28 | 广西玉柴机器股份有限公司 | Engine air cylinder body cooling water jacket structure |
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| CN205025621U (en) * | 2015-10-10 | 2016-02-10 | 安徽江淮汽车股份有限公司 | Vehicle engine and cylinder body cooling device thereof |
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| CN106111912A (en) * | 2016-08-31 | 2016-11-16 | 广西玉柴机器股份有限公司 | For casting the core group of integrated form Composite cylinder lid |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313870A (en) * | 2017-08-25 | 2017-11-03 | 奇瑞汽车股份有限公司 | Water jacket of engine cylinder |
| CN107989711A (en) * | 2017-12-27 | 2018-05-04 | 广西玉柴机器股份有限公司 | The cooling jacket of Multi-cylinder diesel engine cylinder body |
| CN110273776A (en) * | 2019-07-02 | 2019-09-24 | 广西玉柴机器股份有限公司 | A kind of cooling cylinder head of layering |
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Application publication date: 20170815 |
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