CN108999715A - Cooling structure between engine water jacket cylinder - Google Patents
Cooling structure between engine water jacket cylinder Download PDFInfo
- Publication number
- CN108999715A CN108999715A CN201811036052.9A CN201811036052A CN108999715A CN 108999715 A CN108999715 A CN 108999715A CN 201811036052 A CN201811036052 A CN 201811036052A CN 108999715 A CN108999715 A CN 108999715A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- water jacket
- limbers
- cooling structure
- cylinder body
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 238000001816 cooling Methods 0.000 title claims abstract description 23
- 239000004576 sand Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000110 cooling liquid Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- 239000002826 coolant Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000003921 oil Substances 0.000 description 4
- 210000000476 body water Anatomy 0.000 description 3
- 238000003763 carbonization Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 241000005139 Lycium andersonii Species 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
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 object of the present invention is to provide cooling structures between a kind of engine water jacket cylinder, it can be improved cooling liquid speed between cylinder, temperature between cylinder is effectively reduced, including cylinder body, the cylinder holes periphery of cylinder body forms the water jacket of circulating cooling cavity, there is the translot of nasal bridge region between being connected to cylinder between two adjacent cylinder holes at cylinder upper end face, the both ends of translot extend downward with first, two limbers, first, the lower end of two limbers respectively with into, it is vented the water jacket connection of two sides, one of them upper end of first limbers and the second limbers is communicated with cylinder cap blasthole, another upper end sealing.One of them upper end of first limbers and the second limbers communicates with cylinder cap blasthole, the sealing of another upper end, and such setting increases the pressure difference between cylinder body and cylinder cap, and cooling liquid speed increases, good effect of heat exchange.
Description
Technical field
The present invention relates to technical field of automobile engine, and in particular to cooling structure between a kind of engine water jacket cylinder.
Background technique
Cylinder body water jacket of engine is present in the area of space between cylinder-bore and outer wall of cylinder block, and main function is in engine
Cooling cylinder holes in operational process.Currently, engine is designed towards the directions such as small-sized, compact, lightweight, while water jacket being required to design
It is small to meet water-jacket space, emphasis high-temperature area rapid heat dissipation influences the features such as small to structural strength.It is quick-fried when engine performance promotion
Pressure and thermic load are persistently promoted, and will lead in cylinder and hot-spot region occur, and casing wall maximum temperature is more than carbonization of oil temperature, oil
Film is destroyed, and piston ring is unable to get good lubrication, and piston ring translot carbon distribution is serious, and cylinder barrel is caused to be pulled.Cylinder simultaneously
Between high-temperature area it is excessive, cylinder barrel occurs severely deformed, may cause piston, that high temperature occurs for piston skirt and casing wall is viscous glutinous, out
Existing scuffing of cylinder bore；It is not tight to may also lead to piston ring packing, it is big piston air leakage occur, the power failures such as burn oil.Work as engine
Cooling is bad, and biggish thermal expansion amount is caused when cylinder wall temperature is sufficiently high, between cylinder, which can transmit to all directions,
It may cause and bear excessively high stress value on cylinder pad, cause cylinder pad to fail, while position between cylinder can also be caused to contact with cylinder pad
Cylinder block and head generates moderate finite deformation, or even failure；Casing wall high temperature, engine are easy to appear pinking or even super detonation, influence to live
The reliability of the components such as plug, connecting rod, crankshaft, gray iron.
In the prior art, the cooling between cylinder is typically all to lean between two cylinders plus V-type, the oblique water hole of Y type, tradition tiltedly water hole into
Water outlet is arranged in the cylinder body water jacket of intake and exhaust side, since all inside cylinder body water jacket, inlet outlet pressure differential is limited, leads to coolant liquid
Flow velocity in oblique water hole is low, though such oblique water hole can cool down high temperature local between two cylinders, cooling capacity is limited, between cylinder
The state that higher temperature can still be maintained, is unable to satisfy cooling requirement.
Summary of the invention
The object of the present invention is to provide cooling structures between a kind of engine water jacket cylinder, can be improved cooling liquid speed between cylinder,
Temperature between cylinder is effectively reduced.
To achieve the goals above, the technical solution adopted by the present invention are as follows: cooling structure between a kind of engine water jacket cylinder, packet
Cylinder body is included, the cylinder holes periphery of cylinder body forms the water jacket of circulating cooling cavity, has company between two adjacent cylinder holes at cylinder upper end face
The translot of nasal bridge region between logical cylinder, the both ends of translot extend downward with the first and second limbers, under the first and second limbers
End be connected to the water jacket of inlet and outlet two sides respectively, one of them upper end of the first limbers and the second limbers enters water with cylinder cap
Hole communicates, another upper end seals.
In above scheme, one of them upper end of the first limbers and the second limbers communicates with cylinder cap blasthole, is another
A upper end sealing, such setting increase the pressure difference between cylinder body and cylinder cap, and cooling liquid speed increases, good effect of heat exchange.
Detailed description of the invention
Fig. 1 is the top view of cylinder body；
Fig. 2 is B-B cross-sectional view in Fig. 1；
Fig. 3 is that cylinder body and cylinder cap cooperate schematic diagram.
Specific embodiment
As shown in Figure 1-Figure 3, cooling structure between a kind of engine water jacket cylinder, including cylinder body 10, the cylinder holes periphery of cylinder body 10
The water jacket 20 of circulating cooling cavity is formed, there is the cross of nasal bridge region between connection cylinder between two adjacent cylinder holes of 10 upper end surface of cylinder body
Slot 11, the both ends of translot 11 extend downward with the first and second limbers 12,13, the lower end point of the first and second limbers 12,13
It is not connected to the water jacket 20 of inlet and outlet two sides, one of them upper end of the first limbers 12 and the second limbers 13 enters with cylinder cap
Water hole 30 communicates, another upper end seals.First limbers 12 and the second limbers 13 one of them upper end and cylinder cap 30
Blasthole 31 communicate, the sealing of another upper end, such setting increases pressure difference between cylinder body 10 and cylinder cap, coolant liquid
Flow velocity increases, good effect of heat exchange.Under the action of water jacket 20 and cylinder cover water jacket pressure difference, coolant liquid flows through slot between straight water hole and cylinder,
Play the role of reduce cylinder between temperature.
In order to enable the upper end aperture of the first limbers 12 can be docked with the lower end of blasthole 31, the first limbers 12
The aperture of upper end aperture and the lower end of blasthole 31 coincide, and the lower end aperture of blasthole 30 is in horn-like.
The upper end of second limbers 13 is provided with gasket.Coolant liquid is under 10 cylinder cap of cylinder body, 30 pressure differential, via
Two limbers 13 and translot 11 import the first limbers 12, finally enter cylinder cap 30 from blasthole 31, can keep high flow rate,
Avoid that 11 both ends pressure difference of translot is too small, and cooling liquid speed is low, the situation of heat transfer effect difference.
Preferably, the first and second limbers 12,13 is straight hole.Bore first downwards by 10 top surface of cylinder body by the way of processing,
Two limbers 12,13, with 20 connection of water jacket, the pressure difference (typically larger than 20kPa) of coolant liquid between cylinder body 10 and cylinder cap 30 is cooling
Liquid can flow into cylinder cap 30 via the first and second limbers 12,13 and translot 11；Wherein coolant liquid minimum flow rate up to 3-4m/s with
On, coolant liquid promotes the heat exchanger effectiveness between cylinder body 10 by improving flow velocity, and temperature between cylinder is greatly reduced, avoids casing wall
Face temperature is excessively high, is more than carbonization of oil temperature, destroys the lubricating oil film between cylinder holes and piston, piston ring, reduces scuffing of cylinder bore risk.
Further, the exhaust side of water jacket 20 is arranged in the first limbers 12, and water jacket 20 is arranged in the second limbers 13
Air inlet side.
Cylinder body 10 is equipped with the bolt hole 14 for fixing cylinder cap 30, bolt hole 14 and the first and second limbers 12,13 upper ends
Cylinder body 10 between face is equipped with water jacket sand cleaning hole 15.Water jacket sand cleaning hole 15 can effectively reduce bolt while helping sand removal
The rigidity of the join domain of hole 14 and cylinder barrel, can reduce the influence that bolt pretightening deforms cylinder barrel top area；Meanwhile making cylinder
The circumferential rigidity in cylinder top is uniform, under the high explosion pressure effect of combustion gas, is effectively reduced since circumferential rigidity is mutated, causes rigidity thin
Weak-strong test generates serious stress and concentrates, and generates fatigue failure risk.
Multiple water jacket apopores 16 are offered on the outside of the cylinder holes of cylinder body 10, water jacket apopore 16 is discrete to be centered around outside cylinder holes
Week.Inlet and outlet side water jacket apopore 16 is not more than 2/3rds of a semi-circumference, can significantly improve the rigidity of cylinder deck.
Claims (7)
1. the cylinder holes periphery of cooling structure between a kind of engine water jacket cylinder, including cylinder body (10), cylinder body (10) forms circulating cooling
The water jacket (20) of cavity, it is characterised in that: have nasal bridge region between connection cylinder between the two adjacent cylinder holes of cylinder body (10) upper end surface
Translot (11), the both ends of translot (11) extend downward with the first and second limbers (12,13), the first and second limbers (12,
13) lower end is connected to the water jacket of inlet and outlet two sides (20) respectively, the first limbers (12) and the second limbers (13) wherein one
A upper end is communicated with the blasthole (31) of cylinder cap (30), another upper end seals.
2. cooling structure between engine water jacket cylinder according to claim 1, it is characterised in that: the first limbers (12) it is upper
The aperture of the lower end of stomidium mouth and blasthole (31) coincide, and the lower end aperture of blasthole (31) is in horn-like.
3. cooling structure between engine water jacket cylinder according to claim 1, it is characterised in that: the second limbers (13) it is upper
End is provided with gasket.
4. cooling structure between engine water jacket cylinder according to claim 2 or 3, it is characterised in that: the first and second limbers
It (12,13) is straight hole.
5. cooling structure between engine water jacket cylinder according to claim 4, it is characterised in that: the first limbers (12) setting
The air inlet side in water jacket (20) is arranged in exhaust side in water jacket (20), the second limbers (13).
6. cooling structure between engine water jacket cylinder according to claim 1, it is characterised in that: cylinder body (10) is equipped with and is used for
The bolt hole (14) of fixed cylinder cap (30), the cylinder body (10) between bolt hole (14) and the first and second limbers (12,13) upper surface
It is equipped with water jacket sand cleaning hole (15).
7. cooling structure between engine water jacket cylinder according to claim 6, it is characterised in that: on the outside of the cylinder holes of cylinder body (10)
Offer multiple water jacket apopores (16), water jacket apopore (16) it is discrete be centered around cylinder holes periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036052.9A CN108999715A (en) | 2018-09-06 | 2018-09-06 | Cooling structure between engine water jacket cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036052.9A CN108999715A (en) | 2018-09-06 | 2018-09-06 | Cooling structure between engine water jacket cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108999715A true CN108999715A (en) | 2018-12-14 |
Family
ID=64591071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811036052.9A Pending CN108999715A (en) | 2018-09-06 | 2018-09-06 | Cooling structure between engine water jacket cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108999715A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021253065A1 (en) | 2020-06-18 | 2021-12-23 | Avl List Gmbh | Cylinder head for an internal combustion engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749140A (en) * | 2009-12-25 | 2010-06-23 | 奇瑞汽车股份有限公司 | Cylinder body water jacket of engine |
| CN201751555U (en) * | 2010-07-09 | 2011-02-23 | 浙江吉利汽车研究院有限公司 | Cylinder-to-cylinder area cooling water way structure |
| CN205013139U (en) * | 2015-10-13 | 2016-02-03 | 重庆长安汽车股份有限公司 | Cylinder cover water sleeve and engine water jacket |
| CN107313870A (en) * | 2017-08-25 | 2017-11-03 | 奇瑞汽车股份有限公司 | Water jacket of engine cylinder |
| CN207229253U (en) * | 2017-08-18 | 2018-04-13 | 奇瑞汽车股份有限公司 | The jacket structure for water of engine cylinder block |
-
2018
- 2018-09-06 CN CN201811036052.9A patent/CN108999715A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749140A (en) * | 2009-12-25 | 2010-06-23 | 奇瑞汽车股份有限公司 | Cylinder body water jacket of engine |
| CN201751555U (en) * | 2010-07-09 | 2011-02-23 | 浙江吉利汽车研究院有限公司 | Cylinder-to-cylinder area cooling water way structure |
| CN205013139U (en) * | 2015-10-13 | 2016-02-03 | 重庆长安汽车股份有限公司 | Cylinder cover water sleeve and engine water jacket |
| CN207229253U (en) * | 2017-08-18 | 2018-04-13 | 奇瑞汽车股份有限公司 | The jacket structure for water of engine cylinder block |
| CN107313870A (en) * | 2017-08-25 | 2017-11-03 | 奇瑞汽车股份有限公司 | Water jacket of engine cylinder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021253065A1 (en) | 2020-06-18 | 2021-12-23 | Avl List Gmbh | Cylinder head for an internal combustion engine |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181214 |
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| RJ01 | Rejection of invention patent application after publication |