CN201679575U - Cylinder head water jacket - Google Patents
Cylinder head water jacket Download PDFInfo
- Publication number
- CN201679575U CN201679575U CN2009202642746U CN200920264274U CN201679575U CN 201679575 U CN201679575 U CN 201679575U CN 2009202642746 U CN2009202642746 U CN 2009202642746U CN 200920264274 U CN200920264274 U CN 200920264274U CN 201679575 U CN201679575 U CN 201679575U
- Authority
- CN
- China
- Prior art keywords
- water jacket
- water
- flow
- guide plate
- air inlet
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000001816 cooling Methods 0.000 abstract description 13
- 238000002485 combustion reaction Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010304 firing Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The object of the utility model is to provide a cylinder head water jacket having excellent cooling effect. The cylinder head water jacket comprises a water inlet, a water outlet, and a plurality of spark plug holes, air inlets, air outlets and cylinder head bolt holes provided in the water jacket, and is characterized in that two opposing arched flow deflector are arranged between two adjacent cylinders, the rear flow deflector is larger than the front flow deflector, the water channels in the air outlet side of the flow deflectors are larger than those in the air inlet side, and water channels are arranged under the flow deflectors. Having the arched flow deflectors arranged between cylinders, water runs in two sides against on the lower part of the wall of a combustion chamber, which accelerates the water flow in the surface of the combustion chamber. Since the flow channels in the air outlet side of the two flow deflectors is larger than those in the air inlet side, water in the air outlet side is greater than that in the air inlet so as to focus on cooling the air outlet side, better utilize cooling resource and acquire better cooling effect.
Description
Technical field
The utility model belongs to field of automobile, specially refers to the cylinder cap water jacket of motor car engine.
Background technique
Near the wall thickness in the automobile engine spark plug hole and exhaust side bridge of the nose district is thicker at present, make that coolant flow situation herein is generally all very poor, the cooling effect of firing chamber is not good, for addressing this problem, people generally adopt the small bore passage to guarantee to flow through the flow velocity of combustor surface, but less because of the capacity of passage, therefore the heat of taking away is limited; The designer who also has adopts bigger water jacket to improve this problem, but because of the flow area of passage is bigger, the feasible flow velocity that flows through the cooling liquid of combustor surface can descend, and cooling effect can not reach expection.After water jacket formed cavity in cylinder cap in addition, weakened to some extent near the cylinder cap part particularly intensity the cylinder bolt, and the reliability of motor has been caused threat.
The model utility content
The purpose of this utility model is the engine cylinder cover water jacket that proposes a kind of good cooling results.
Engine cylinder cover water jacket of the present utility model comprises water intake, water outlet and is arranged on a plurality of spark-plug holes, air inlet road junction, exhaust road junction, cylinder bolt hole in the water jacket, key is that the position of described water jacket between adjacent cylinder is provided with two relative arc deflectors, wherein the guide plate of rear end is greater than the guide plate of front end, the exhaust side flow channel of guide plate is bigger than air inlet side, and the guide plate below is provided with flow channel.
Arc deflector is arranged the position between the adjacent cylinder, and the guide plate below is provided with flow channel, can make current toward both sides, particularly down be close to combustion chamber wall surface and flow, increased the flow velocity of combustor surface current; The guide plate of rear end is greater than the guide plate of front end, and it is more reasonable that resistance to water-flow is distributed; The exhaust side flow channel of guide plate is bigger than air inlet side, makes the exhaust side current greater than air inlet side current, cooling water can be applied to the coolant exhaust side emphatically, more effectively utilizes cooling resource, and is better to the cooling effect of motor.
Described spark-plug hole is the shoulder hole of base diameter less than top diameter, and like this in the bottom, the space between air flue and the spark-plug hole is bigger, can arrange enough flow channels at the bottom periphery of spark-plug hole, current are unimpeded, and the wall thickness in bridge of the nose district is controlled the most rationally, and the cooling of bridge of the nose district fully.
The flow channel of described water jacket between the exhaust road junction is " S " type, can avoid current directly to bump against on the spark plug hole wall as far as possible, reduces resistance to water-flow, and reduced the wall thickness in exhaust side bridge of the nose district, makes current be close to combustion chamber wall surface, improves cooling effect.
Described cylinder bolt hole place is a rounding, and its mold joint is the arc line type mold joint, and moulding wall transition circle is sliding near making, avoids stress to concentrate when causing cylinder bolt stressed and splits herein.
Engine cylinder cover water jacket of the present utility model is by adopting multiple Promethean structures such as guide plate, serpentine flow channel, firing chamber wall thickness and resistance to water-flow have been reduced, and it is mobile freely to make current can be close to combustion chamber wall surface, the exhaust side current are better than air inlet side current, improved cooling effect greatly, stress is concentrated near having avoided cylinder bolt hole simultaneously, has strengthened the intensity of cylinder cap.
Description of drawings
Fig. 1 is the plan view of engine cylinder cover water jacket of the present utility model;
Fig. 2, Fig. 3 are respectively the views of two angles in side of engine cylinder cover water jacket of the present utility model.
Embodiment
Describe the utility model in detail below in conjunction with specific embodiments and the drawings.
Embodiment 1:
As shown in the figure, the engine cylinder cover water jacket casting of present embodiment, comprise water intake 1, water outlet 2 and be arranged on a plurality of spark-plug holes 3, air inlet road junction 7, exhaust road junction 8, cylinder bolt hole 6 in the water jacket, key is that the position of described water jacket between adjacent cylinder is provided with two relative arc deflectors, and wherein the guide plate 4 of rear end is greater than the guide plate 5 of front end; Described spark-plug hole 3 is the shoulder hole of base diameter less than top diameter; The flow channel of described water jacket between two exhaust road junctions 8 is " S " type; Described cylinder bolt hole 6 places are rounding, and its mold joint is the arc line type mold joint, and moulding wall transition circle is sliding near making, and avoid stress to concentrate when causing cylinder bolt stressed and split herein.
Cooling water enters from water intake 1, around exhaust side " S " type of flowing through flow channel, the spark plug shoulder hole 3, near the spark-plug hole 3 and bridge of the nose district of exhaust side is cooled off, current continue to flow toward water outlet 2 directions, the exhaust side flow channel that runs into guide plate 5,4, two guide plates is bigger than air inlet side, and has below the guide plate than major path, make most current all can down be close to combustion chamber wall surface and flow, have quite more current simultaneously and flow through from exhaust side.Like this, continuing to have most of current to paste combustion chamber wall surface freely flows through near the spark-plug hole 3 and exhaust side bridge of the nose district, both guaranteed the capacity of water jacket, guaranteed the particularly flow velocity of exhaust side of combustion chamber wall surface again, the part that makes the cooling of whole firing chamber both evenly get back suitable is strengthened, and all current flow out from water outlet 2 at last.
Claims (4)
1. engine cylinder cover water jacket, comprise water intake, water outlet and be arranged on a plurality of spark-plug holes, air inlet road junction, exhaust road junction, cylinder bolt hole in the water jacket, it is characterized in that the position of described water jacket between adjacent cylinder is provided with two relative arc deflectors, wherein the guide plate of rear end is greater than the guide plate of front end, the exhaust side flow channel of guide plate is bigger than air inlet side, and the guide plate below is provided with flow channel.
2. engine cylinder cover water jacket according to claim 1 is characterized in that described spark-plug hole is the shoulder hole of base diameter less than top diameter.
3. engine cylinder cover water jacket according to claim 1 and 2 is characterized in that the flow channel of described water jacket between the exhaust road junction is " S " type.
4. engine cylinder cover water jacket according to claim 3 is characterized in that described cylinder bolt hole place is a rounding, and its mold joint is the arc line type mold joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202642746U CN201679575U (en) | 2009-12-07 | 2009-12-07 | Cylinder head water jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202642746U CN201679575U (en) | 2009-12-07 | 2009-12-07 | Cylinder head water jacket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201679575U true CN201679575U (en) | 2010-12-22 |
Family
ID=43344622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202642746U Expired - Fee Related CN201679575U (en) | 2009-12-07 | 2009-12-07 | Cylinder head water jacket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201679575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588138A (en) * | 2012-03-14 | 2012-07-18 | 北京理工大学 | Design method for accurate cooling based on structure of cylinder cover |
-
2009
- 2009-12-07 CN CN2009202642746U patent/CN201679575U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588138A (en) * | 2012-03-14 | 2012-07-18 | 北京理工大学 | Design method for accurate cooling based on structure of cylinder cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20151207 |
|
| EXPY | Termination of patent right or utility model |