CN103388536A - Water jacket structure for motor cylinder cover - Google Patents
Water jacket structure for motor cylinder cover Download PDFInfo
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- CN103388536A CN103388536A CN2013103446734A CN201310344673A CN103388536A CN 103388536 A CN103388536 A CN 103388536A CN 2013103446734 A CN2013103446734 A CN 2013103446734A CN 201310344673 A CN201310344673 A CN 201310344673A CN 103388536 A CN103388536 A CN 103388536A
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Abstract
The invention relates to a water jacket structure for a motor cylinder cover. The water jacket structure comprises a coolant flowing channel formed between a water inlet and a water outlet; coolant is allowed to flow in the cylinder cover, and flows into the cylinder cover from the water inlet at one end of the cylinder cover; a cooling channel surrounding a waste gas re-circulation channel wall is communicated between the water inlet and the coolant flowing channel; and after entering from the water inlet, the coolant enters the coolant flowing channel through the cooling channel of the waste gas re-circulation channel wall.
Description
Technical field
The invention belongs to engine art, specifically refer to a kind of cylinder head water jacket structure.
Background technique
Cylinder head is as the key components and parts of motor, and in working procedure, heat load and mechanical load are all very high.Just easily cause local superheating in some improper or cooling inadequate place of design, be easy to crack under the effect of and low frequency thermal fatigue tired in high frequency heat and cause the inefficacy of cylinder cap.Practice shows that the crackle great majority that " ridge area " produces are caused by thermal fatigue.Therefore when the design cylinder head, require cylinder head carry out rationally, cooling fully, prevent from should making uniform temperature fields distribute to reduce thermal stress because of cylinder head excess Temperature or the excessive phenomenon of the even generation localized heat of temperature distributing disproportionation stress as far as possible.
Traditional cylinder head water jacket air inlet side and exhaust side Ge Sheyi road water jacket and water intake adopt circular design, and the firing chamber surrounding of each cylinder is not arranged special cooling passage.Such technological scheme, make the air inlet side identical with the flow of exhaust side water jacket, due to the exhaust side temperature higher than the air inlet side, so the rate of cooling of exhaust side is slower than the air inlet side, cause cylinder cap the phenomenon of thermal fatigue to occur, adding the firing chamber surrounding does not have special cooling channel yet, causes the cooling effect of head combustion chamber poor.
In order to improve the structure of conventional engines Cooling of Cylinder Head water jacket, now there is technology to propose double-deck cooling water jacket structure, or by a side of cylinder cap, intake, technology by the opposite side water outlet of cylinder cap, now general employing is to intake at exhaust side, cooling liquid at first the flow through exhaust side of high temperature and then the air inlet side of flowing through, water outlet is arranged at the air inlet side, collects finally by the cylinder cap water outlet and discharges.Such technological scheme is compared with traditional technological scheme, improves a lot on the cooling effect to cylinder cap.But still there is defect in such technological scheme,, no matter this defect is exactly to be to adopt double-layer water jacket or adopt cooling water to be entered the technological scheme of being discharged by the air inlet side again by exhaust side, all exist cooling liquid to cylinder cap exhaust side and the variant problem of cylinder cap air inlet side chilling temperature.Now in all technological schemes, because it is identical with the cooling liquid of air inlet side to flow through the cylinder cap exhaust side, but the temperature of exhaust side will be far above the temperature of air inlet side, and such result is, although realized improving the purpose of cooling effect, in the temperature difference of cylinder cap upper air side and exhaust side, still existed.Such temperature difference has a great impact for the fatigue of cylinder cap metal.
Summary of the invention
The purpose of this invention is to provide a kind of cylinder head water jacket structure, the firing chamber surrounding that each cylinder is furnished with water intake and water outlet and each cylinder adopts passage directly from cylinder body, to introduce the cooling mode of cooling liquid, can strengthen the turbulent flow of each regional cooling liquid of water jacket, improve cooling effectiveness.
Another object of the present invention is,, by technological scheme of the present invention, effectively dwindles exhaust side and air inlet side on cylinder cap and, in cooled temperature difference, reduces metal fatigue, improves the life-span of cylinder cap.
The present invention is achieved by the following technical solutions:
A kind of cylinder head water jacket structure, include the coolant flow passage that is formed between water intake and water outlet, allows cooling liquid to flow in cylinder head;
Cooling liquid enters cylinder cap from cylinder cap one end water intake, be communicated with around the cooling channel of exhaust gas recirculation passage wall between water intake and coolant flow passage, the cooling channel by the exhaust gas recirculation passage wall after cooling liquid enters from water intake enters the coolant flow passage;
Be provided with a stiffening rib longitudinally between water intake and water outlet, described stiffening rib is separated into two-part with cooling jacket in cylinder cap jointly with cylinder cap, is respectively air inlet side water jacket and exhaust side water jacket;
Air inlet side water jacket arranges air inlet side lower floor stream, and the exhaust side water jacket arranges exhaust side upper strata stream and exhaust side lower floor stream.
Each cylinder cap exhaust side upper strata stream is connected exhaust side cooling channel and exhaust side ridge area cooling channel and connects with exhaust side lower floor stream.
Air inlet side lower floor stream, exhaust side upper strata stream and the exhaust side lower floor stream of each cylinder cap is communicated with air inlet side lower floor stream, exhaust side upper strata stream and the exhaust side lower floor stream of adjacent cylinder cap.
The exhaust side upper strata stream of a cylinder cap and exhaust side lower floor stream are communicated with between two cylinder caps with exhaust side lower floor stream and the exhaust side upper strata stream of adjacent cylinder cap.
Each cylinder cap all is communicated with the cylinder block cooling water cover, and the cylinder block cooling water cover enters cylinder cap exhaust side lower floor's stream by cylinder cap exhaust side water intake and cylinder cap air inlet side water intake and air inlet side lower floor stream is communicated with.
Described water intake is shaped as key shaped.
The average cross-section of described exhaust side upper strata stream is less than the average cross-section of exhaust side lower floor stream and air inlet side lower floor stream.
The invention has the beneficial effects as follows:
1. water intake adopts " key shaped " design, and exhaust side adopts the up and down dual flow path, strengthens the cooling effect of exhaust side
2. the firing chamber surrounding of each cylinder adopts passage directly cooling from cylinder body introducing cooling liquid, has strengthened the turbulent flow of cooling liquid, and each regional coolant flow of anti-water-baffling sleeve postpones, and improves cooling effectiveness.
Description of drawings
Fig. 1 is the air inlet side stereogram of embodiment of the present invention cylinder cover water jacket;
Fig. 2 is the exhaust side stereogram of the described embodiment's cylinder cover water jacket of Fig. 1;
Fig. 3 is the bottom view of the described embodiment's cylinder cover water jacket of Fig. 1;
Fig. 4 is the air inlet side stereogram of the described embodiment's cylinder cover water jacket of Fig. 1;
Fig. 5 is the exhaust side stereogram of the described embodiment's cylinder cover water jacket of Fig. 2.
Wherein, 1-water jacket; The 2-water intake; The 3-water outlet; The 4-exhaust gas recirculation passage; Water channel in 5-air inlet side combusion chamber; Water channel on 6-exhaust side firing chamber; 7-air inlet side lower floor stream; 8-exhaust side upper strata stream; 9-exhaust side lower floor stream; 10-exhaust side upper stream paths; 11-air inlet side opening; 12-exhaust side opening; 13-exhaust side upper and lower layers flow path channel; 14-exhaust side cooling channel; 15-exhaust side ridge area cooling channel; 16-stiffening rib zone.
Embodiment
Below describe technological scheme of the present invention in detail by specific embodiment, should be understood that, following embodiment is only exemplary, only can be used for explaining and technological scheme of the present invention being described, and can not to be interpreted as is restriction to technical solution of the present invention.
In technological scheme of the present invention, for the coolant flow passage also referred to as cooling jacket.
With reference to figure 1, Fig. 2, be the front end of cylinder cap in a side of the mark that indicates cylinder block side and cylinder head side, the other end is the rear end of cylinder cap.What represent in Fig. 1 and Fig. 2 is four cylinder engine, and the front end of cylinder cap is followed successively by cylinder to four cylinder to the rear end of cylinder cap.In Fig. 1, illustrated top is the exhaust side of cylinder cap, and illustrated below is the air inlet side of cylinder cap; Be the air inlet side of cylinder cap above illustrated in Fig. 2, illustrated below is the exhaust side of cylinder cap.Cylinder head water jacket is provided with " key shaped " water intake 2 and circular water outlet 3, be formed with the passage of predetermined volume between cooling liquid " key shaped " water intake 2 and circular water outlet 3, it, as cooling passage, is also referred to as water jacket 1, and cooling liquid flows by them.
With reference to figure 3, each cylinder is provided with corresponding water intake and water outlet, is equipped with a horizontal stiffening rib between each intake-outlet, and horizontal stiffening rib is divided into two-part with the cylinder cap body with water jacket, is respectively air inlet side water jacket and exhaust side water jacket.These stiffening rib zones 16 that cross reinforcing forms in cylinder cap increase the intensity of cylinder cap.
Air inlet side water jacket arranges air inlet side lower floor stream, and the exhaust side water jacket arranges exhaust side upper strata stream and exhaust side lower floor stream.
Be communicated with the cooling channel 4 around the exhaust gas recirculation passage wall between water intake and coolant flow passage; Cooling liquid enters cylinder cap from cylinder cap rear end " key shaped " water intake 2, after walking around the cooling channel 4 of exhaust gas recirculation passage wall, form exhaust side upper strata stream 8 and exhaust side lower floor stream 7 and exhaust side lower floor stream 9, wherein, it is air inlet side lower floor stream 7 that the air inlet side only arranges a road, exhaust side arranges two-way, is respectively exhaust side upper strata stream 8 and exhaust side lower floor stream 9.
Exhaust side upper strata stream 8 and exhaust side lower floor stream 9 interconnect by exhaust side cooling channel 14 and exhaust side ridge area cooling channel 15, interconnect by exhaust side upper stream paths 10 between exhaust side upper strata stream 8 and adjacent cylinder cap exhaust side upper strata stream, to strengthen the mobility of cooling liquid, prevent the current dead band, improve Cooling of Cylinder Head efficiency.
Air inlet side lower floor stream, exhaust side upper strata stream and the exhaust side lower floor stream of each cylinder cap is communicated with air inlet side lower floor stream, exhaust side upper strata stream and the exhaust side lower floor stream of adjacent cylinder cap.
The exhaust side upper strata stream of a cylinder cap and exhaust side lower floor stream are communicated with between two cylinder caps with exhaust side lower floor stream and the exhaust side upper strata stream of adjacent cylinder cap.
Cooling jacket forms air inlet side opening 11 by the sidewall of air inlet side lower floor stream 7, is used for being installed into valve and forms suction port.The sidewall of exhaust side upper strata stream 8 is formed with two exhaust side openings 12, is used for exhaust valve is installed, and forms exhaust side upper stream paths and exhaust side underflow paths 13 between exhaust side upper strata stream and exhaust side underflow trackside wall, is used to form relief opening.
With reference to figure 4, Fig. 5, cooling liquid enters cylinder head from cylinder cap rear end " key shaped " water intake 2, most of cooling liquid enters air inlet side lower floor stream 7 and exhaust side lower floor stream 9, the fraction cooling liquid enters exhaust side upper strata stream 8, the cooling liquid that enters Aquaporin-5 in the cooling liquid of air inlet side lower floor stream 7 and air inlet side combusion chamber is converged, entering water channel 6 on the cooling liquid of exhaust side lower floor stream 9 and exhaust side firing chamber converges, these three strands of cooling water flows all after water outlet converges, the effluent gases cylinder cap.Each passage of Fig. 4 and Fig. 5 can flow mutually, has increased the turbulent flow of current, has strengthened cooling effect.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present invention is by claims and be equal to and limit.
Claims (7)
1. a cylinder head water jacket structure, is characterized in that: include the coolant flow passage that is formed between water intake and water outlet, allow cooling liquid to flow in cylinder head;
Cooling liquid enters cylinder cap from cylinder cap one end water intake, be communicated with around the cooling channel of exhaust gas recirculation passage wall between water intake and coolant flow passage, the cooling channel by the exhaust gas recirculation passage wall after cooling liquid enters from water intake enters the coolant flow passage;
Be provided with a stiffening rib longitudinally between water intake and water outlet, described stiffening rib is separated into two-part with cooling jacket in cylinder cap jointly with cylinder cap, is respectively air inlet side water jacket and exhaust side water jacket;
Air inlet side water jacket arranges air inlet side lower floor stream, and the exhaust side water jacket arranges exhaust side upper strata stream and exhaust side lower floor stream.
2. cylinder head water jacket structure according to claim 1 is characterized in that: each cylinder cap exhaust side upper strata stream is connected the exhaust side cooling channel with exhaust side lower floor stream and exhaust side ridge area cooling channel connects.
3. cylinder head water jacket structure according to claim 1 and 2, it is characterized in that: air inlet side lower floor stream, exhaust side upper strata stream and the exhaust side lower floor stream of each cylinder cap is communicated with air inlet side lower floor stream, exhaust side upper strata stream and the exhaust side lower floor stream of adjacent cylinder cap.
4. cylinder head water jacket structure according to claim 1 and 2, it is characterized in that: the exhaust side upper strata stream of a cylinder cap and exhaust side lower floor stream are communicated with between two cylinder caps with exhaust side lower floor stream and the exhaust side upper strata stream of adjacent cylinder cap.
5. cylinder head water jacket structure according to claim 1 and 2, it is characterized in that: each cylinder cap all is communicated with the cylinder block cooling water cover, and the cylinder block cooling water cover enters cylinder cap exhaust side lower floor's stream by cylinder cap exhaust side water intake and cylinder cap air inlet side water intake and air inlet side lower floor stream is communicated with.
6. cylinder head water jacket structure according to claim 1, it is characterized in that: described water intake is shaped as key shaped.
7. cylinder head water jacket structure according to claim 1 and 2, it is characterized in that: the average cross-section of described exhaust side upper strata stream is less than the average cross-section of exhaust side lower floor stream and air inlet side lower floor stream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103446734A CN103388536A (en) | 2013-08-08 | 2013-08-08 | Water jacket structure for motor cylinder cover |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103446734A CN103388536A (en) | 2013-08-08 | 2013-08-08 | Water jacket structure for motor cylinder cover |
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| CN103388536A true CN103388536A (en) | 2013-11-13 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2536030A (en) * | 2015-03-04 | 2016-09-07 | Gm Global Tech Operations Llc | A water jacket for an internal combustion engine |
| CN106437995A (en) * | 2016-10-26 | 2017-02-22 | 奇瑞汽车股份有限公司 | Automobile supercharged engine cooling system and control method thereof |
| CN108757139A (en) * | 2018-06-21 | 2018-11-06 | 浙江吉利控股集团有限公司 | A kind of engine cooling method and engine, 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 |
| CN111852682A (en) * | 2020-06-04 | 2020-10-30 | 浙江义利汽车零部件有限公司 | Engine cooling water jacket system, engine cooling method and vehicle |
| CN113606054A (en) * | 2021-08-13 | 2021-11-05 | 哈尔滨东安汽车动力股份有限公司 | Cylinder head double-layer water jacket structure of cross flow cooling engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200961527Y (en) * | 2006-10-26 | 2007-10-17 | 重庆长安汽车股份有限公司 | Engine cylinder lid with double-layer cooling liquid passage |
| CN201401241Y (en) * | 2009-04-08 | 2010-02-10 | 中国第一汽车集团公司 | W-shaped flow structure of double-layer water jacket for integral cylinder cover of engine |
| CN102192039A (en) * | 2010-03-17 | 2011-09-21 | 本田技研工业株式会社 | Cooling water passage structure in cylinder head of internal combustion engine |
| CN102937054A (en) * | 2012-10-15 | 2013-02-20 | 安徽江淮汽车股份有限公司 | Water jacket of engine cylinder head |
-
2013
- 2013-08-08 CN CN2013103446734A patent/CN103388536A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200961527Y (en) * | 2006-10-26 | 2007-10-17 | 重庆长安汽车股份有限公司 | Engine cylinder lid with double-layer cooling liquid passage |
| CN201401241Y (en) * | 2009-04-08 | 2010-02-10 | 中国第一汽车集团公司 | W-shaped flow structure of double-layer water jacket for integral cylinder cover of engine |
| CN102192039A (en) * | 2010-03-17 | 2011-09-21 | 本田技研工业株式会社 | Cooling water passage structure in cylinder head of internal combustion engine |
| CN102937054A (en) * | 2012-10-15 | 2013-02-20 | 安徽江淮汽车股份有限公司 | Water jacket of engine cylinder head |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2536030A (en) * | 2015-03-04 | 2016-09-07 | Gm Global Tech Operations Llc | A water jacket for an internal combustion engine |
| US10184420B2 (en) | 2015-03-04 | 2019-01-22 | GM Global Technology Operations LLC | Water jacket for an internal combustion engine |
| CN106437995A (en) * | 2016-10-26 | 2017-02-22 | 奇瑞汽车股份有限公司 | Automobile supercharged engine cooling system and control method thereof |
| CN108757139A (en) * | 2018-06-21 | 2018-11-06 | 浙江吉利控股集团有限公司 | A kind of engine cooling method and engine, vehicle |
| CN108757139B (en) * | 2018-06-21 | 2019-12-20 | 浙江吉利控股集团有限公司 | Engine cooling method, engine and vehicle |
| CN111852682A (en) * | 2020-06-04 | 2020-10-30 | 浙江义利汽车零部件有限公司 | Engine cooling water jacket system, engine cooling method 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 |
| CN113606054A (en) * | 2021-08-13 | 2021-11-05 | 哈尔滨东安汽车动力股份有限公司 | Cylinder head double-layer water jacket structure of cross flow cooling engine |
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Application publication date: 20131113 |