CN101581258A - Water jacket of engine cylinder - Google Patents
Water jacket of engine cylinder Download PDFInfo
- Publication number
- CN101581258A CN101581258A CNA2009101080549A CN200910108054A CN101581258A CN 101581258 A CN101581258 A CN 101581258A CN A2009101080549 A CNA2009101080549 A CN A2009101080549A CN 200910108054 A CN200910108054 A CN 200910108054A CN 101581258 A CN101581258 A CN 101581258A
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- water
- water jacket
- cylinder
- jacket
- air inlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 132
- 238000001816 cooling Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 3
- 210000000476 body water Anatomy 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001970 hydrokinetic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention provides a water jacket of an engine cylinder, comprising a ring-shaped cylinder water jacket and a water pump that are enclosed by an air inlet side water jacket and an air outlet side water jacket and arranged between the cylinder and a cylinder sleeve; the water outlet of the water pump cuts in the water inlet of the air outlet side water jacket; the air outlet side water jacket is provided with a group of air outlet side cylinder cover water holes; the air inlet side water jacket is provided with a group of air inlet side cylinder cover water holes; and a nose bridge area is also provided with a nose bridge area cylinder cover water hole. The water jacket is characterized in that the air inlet side water jacket corresponding to the other side of air inlet of the air outlet water jacket is provided with a water returning hole and is communicated with the water inlet of the water pump by the water returning hole; as the water outlet of the water pump directly cuts in the water jacket and a water outlet hole on the external wall of the cylinder at the external side of the water jacket of the dead water area is directly communicated with the water inlet of the water pump, the dead water area can be eliminated and the cooling effect can be greatly improved.
Description
Technical field
The present invention relates to a kind of water jacket of engine cylinder, particularly relate to a kind of gasoline engine cylinder body jacket structure for water.
Background technique
As everyone knows, generally power and the moment of torsion along with motor constantly increases, and the heat load of motor is increasing, and engine cooling becomes the another difficult problem that our designed engines will overcome.Whether the quality of engine cooling directly has influence on motor and can continue, work normally, along with the raising (some HP, hp/litre has surpassed 100KW/L now) and the employing of supercharging technology of HP, hp/litre are had higher requirement to engine-cooling system undoubtedly.In order to address the above problem, great majority are to adopt the method that increases the water pump water outlet flow and increase the water jacket diameter at present.But the volume and weight that this will increase the internal consumption power of motor and increase cylinder block contradicts with the lightweight and the high efficiency of motor again, has also just constituted a difficult point of engine design.
Chinese patent 200620093081.5 discloses the novel block jacket of a kind of motor car engine, it includes a circular cylinder water jacket that is provided with between cylinder block and cylinder liner, its technological points is: be provided with an arc boss that makes the current direction upper punch in the bottom of the inboard of water jacket body water inlet, the joint between adjacent two cylinder liner is provided with a water-flowing trough that both sides water jacket body is connected.The bottom of water inlet increases arc boss, makes the current upper punch, increases the water yield of going into that flows into the cylinder cap water jacket.This invention can be cooled off the cylinder sleeve joint owing to increase the cylinder sleeve water-flowing trough, prevents the too high and disabler of cylinder sleeve joint Yin Wendu; Bottom at water inlet increases arc boss, makes the current upper punch, increases the water yield of going into that flows into the cylinder cap water jacket.Send bright rational in infrastructure, the advantages such as entry is unobstructed, the cylinder cap water filling good, the cooling of cylinder sleeve joint is good, long service life that also have elsewhere.But, still there is not to solve the generation of having avoided the slough on the structure greatly, under the constant situation of water pump, strengthen current, improve cooling effect.
Summary of the invention
The objective of the invention is to the deficiency that exists in the available engine cylinder body water jacket, a kind of water jacket of engine cylinder is provided, avoided the generation of slough on the structure greatly, under the constant situation of water pump, strengthen current, improve cooling effect.From and prolong life-span of motor.
The technical solution adopted for the present invention to solve the technical problems is: a kind of water jacket of engine cylinder, it comprises and is arranged on the circular cylinder water sleeve water pump that is encircled into by air inlet side water jacket and exhaust side water jacket between cylinder block and the cylinder liner, described pump outlet incision exhaust side water jacket water inlet, water hole on one group of exhaust side cylinder cap is arranged on the exhaust side water jacket, water hole on one group of air inlet side cylinder cap is arranged on the described air inlet side water jacket, water hole on the bridge of the nose district cylinder cap also is set in bridge of the nose district; It is characterized in that: at the corresponding opposite side air inlet of described exhaust side water jacket water inlet side water jacket backwater mouth is set, and connects by return pipe and water pump water inlet.
Further, for eliminating stagnant regions, exhaust gas recirculation (EGR) cooler intake is set in exhaust side bridge of the nose district in the exhaust side coolant flow.
Whether reasonable in order to verify the water jacket design, need by CFD (ComputationalFluid Dynamic) hydrokinetics calculation among the CAE, it is lower to draw the corresponding opposite side water flow velocity of water jacket water inlet, forms dead water region.
Good effect of the present invention: the present invention is owing to directly cut water jacket and make a call to the straight-through water pump water inlet of an osculum on the outer wall of cylinder block in the slough water jacket outside at water pump water outlet.So both the slough can be eliminated, and cooling effect can be improved greatly again.The manufacturability of technological borehole adds a boss on the zone of needs boring for convenience simultaneously.From results of performance analysis, can be the cooling effect that improves greatly by such structural design, satisfied the requirement of light-weight design and high power per liter and high heat load, thereby made that the design of whole motor is more reasonable.The present invention has realized utilizing minimum material, and the most easy structure and general technological method are improved current and eliminated the slough, improve the cooling effect of water jacket.
Below with reference to drawings and Examples, the present invention is carried out comparatively detailed explanation.
Description of drawings
Fig. 1 is a D structure schematic representation of the present invention.
Among the figure: 1. pump outlet, 2. water pump water inlet, 3. water jacket backwater mouth, 4. water jacket water inlet, 5. water jacket, 6. water pump, 7. return pipe.
Embodiment
Embodiment 1, as shown in Figure 1, a kind of water jacket of engine cylinder, it comprises and is arranged on circular cylinder water jacket 5 and the water pump 6 that is encircled into by air inlet side water jacket and exhaust side water jacket between cylinder block and the cylinder liner, described pump outlet 1 incision exhaust side water jacket water inlet 4, water hole on one group of exhaust side cylinder cap is arranged on the exhaust side water jacket, water hole on one group of air inlet side cylinder cap is arranged on the described air inlet side water jacket, water hole on the bridge of the nose district cylinder cap also is set in bridge of the nose district.At described exhaust side water jacket water inlet 4 corresponding opposite side air inlet side water jackets backwater mouth 3 is set, and connects by return pipe 7 and water pump water inlet 2.
Further, for eliminating stagnant regions, exhaust gas recirculation (EGR) cooler intake is set in exhaust side bridge of the nose district in the exhaust side coolant flow.
For the ease of the processing backwater mouth, the processing boss face can be set in the position of water jacket backwater mouth 3.
Described backwater mouth water hole diameter is about 8% designs that are no more than water jacket water inlet flow by backwater mouth cross section flow.Be that the backwater hole diameter is by designing according to the pressure loss and above-mentioned requirements.
Cooling water is cut water jackets by pump outlet 1 via water jacket inlet 4, such entry mode helps current and improves, make the water pump structure design simplification, but can have influence on and cut the corresponding opposite side of side, learn that through CFD calculating this place is the slough, therefore add in this slough and bore a backwater hole 3 and directly link, make the slough current be improved with water pump water inlet 2, thus the raising of integral body cooling effect.
Claims (3)
1, a kind of water jacket of engine cylinder, it comprises and is arranged on the circular cylinder water sleeve water pump that is encircled into by air inlet side water jacket and exhaust side water jacket between cylinder block and the cylinder liner, described pump outlet is by front end incision exhaust side water jacket water inlet, water hole on one group of exhaust side cylinder cap is arranged on the exhaust side water jacket, water hole on one group of air inlet side cylinder cap is arranged on the described air inlet side water jacket, water hole on the bridge of the nose district cylinder cap also is set in bridge of the nose district; It is characterized in that: at the corresponding opposite side air inlet of described exhaust side water jacket water inlet side water jacket backwater mouth is set, and connects by return pipe and water pump water inlet.
2, water jacket of engine cylinder according to claim 1 is characterized in that: exhaust gas recirculation (EGR) cooler intake is set in exhaust side bridge of the nose district.
3, water jacket of engine cylinder according to claim 1 is characterized in that: described backwater mouth water hole diameter is about 8% designs that are no more than water jacket water inlet flow by backwater mouth cross section flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101080549A CN101581258A (en) | 2009-06-12 | 2009-06-12 | Water jacket of engine cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101080549A CN101581258A (en) | 2009-06-12 | 2009-06-12 | Water jacket of engine cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101581258A true CN101581258A (en) | 2009-11-18 |
Family
ID=41363550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101080549A Pending CN101581258A (en) | 2009-06-12 | 2009-06-12 | Water jacket of engine cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101581258A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787936A (en) * | 2010-03-10 | 2010-07-28 | 江苏四达动力机械集团有限公司 | Water jacket structure of diesel cylinder block |
| CN102797582A (en) * | 2012-07-31 | 2012-11-28 | 奇瑞汽车股份有限公司 | Water jacket of cylinder body of diesel engine |
| CN103244300A (en) * | 2012-02-10 | 2013-08-14 | 康明斯有限公司 | Seatless wet cylinder liner for internal combustion engine |
| CN106224114A (en) * | 2016-10-13 | 2016-12-14 | 广西玉柴机器股份有限公司 | The water inlet structure of cylinder jacket water jacket |
| CN110836138A (en) * | 2018-08-17 | 2020-02-25 | 北汽福田汽车股份有限公司 | Engine cooling system, engine and vehicle |
| CN111692005A (en) * | 2020-07-07 | 2020-09-22 | 天津特瑞捷动力科技有限公司 | Longitudinal and transverse mixed flow double-loop engine cooling system |
-
2009
- 2009-06-12 CN CNA2009101080549A patent/CN101581258A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787936A (en) * | 2010-03-10 | 2010-07-28 | 江苏四达动力机械集团有限公司 | Water jacket structure of diesel cylinder block |
| CN101787936B (en) * | 2010-03-10 | 2012-10-03 | 江苏四达动力机械集团有限公司 | Water jacket structure of diesel cylinder block |
| CN103244300A (en) * | 2012-02-10 | 2013-08-14 | 康明斯有限公司 | Seatless wet cylinder liner for internal combustion engine |
| CN103244300B (en) * | 2012-02-10 | 2017-04-26 | 康明斯有限公司 | Seatless wet cylinder liner for internal combustion engine |
| CN102797582A (en) * | 2012-07-31 | 2012-11-28 | 奇瑞汽车股份有限公司 | Water jacket of cylinder body of diesel engine |
| CN102797582B (en) * | 2012-07-31 | 2014-05-07 | 奇瑞汽车股份有限公司 | Water jacket of cylinder body of diesel engine |
| CN106224114A (en) * | 2016-10-13 | 2016-12-14 | 广西玉柴机器股份有限公司 | The water inlet structure of cylinder jacket water jacket |
| CN110836138A (en) * | 2018-08-17 | 2020-02-25 | 北汽福田汽车股份有限公司 | Engine cooling system, engine and vehicle |
| CN111692005A (en) * | 2020-07-07 | 2020-09-22 | 天津特瑞捷动力科技有限公司 | Longitudinal and transverse mixed flow double-loop engine cooling system |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20091118 |