CN102937054B - Water jacket of engine cylinder head - Google Patents
Water jacket of engine cylinder head Download PDFInfo
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- CN102937054B CN102937054B CN201210393561.3A CN201210393561A CN102937054B CN 102937054 B CN102937054 B CN 102937054B CN 201210393561 A CN201210393561 A CN 201210393561A CN 102937054 B CN102937054 B CN 102937054B
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Abstract
The invention provides a water jacket of an engine cylinder head. The water jacket comprises a cooling liquid flow channel formed between a water inlet and a water outlet and allows cooling liquid to flow in the air cylinder head; the cooling liquid flows unidirectionally after entering the cylinder head from an exhaust-side water inlet, and thus an exhaust side is forced to be cooled down in priority; the exhaust side is provided with double flow passages up and down, and a cooling liquid flow channel is arranged in a nose bridge region of the air exhaust side to improve the cooling effect of the air exhaust side; a main water outlet is arranged on an air inlet side; and each cylinder is provided with an individual water outlet, thereby preventing dead regions, preventing cooling liquid in each region of the water jacket from delaying in flowing, and avoiding water flow dead regions. Therefore, the cylinder head cooling efficiency is improved.
Description
Technical field
Patent of the present invention relates to engine art, refers more particularly to a kind of cylinder head jacket of engine.
Background technology
Cylinder head is as the key components and parts of engine, and in the course of work, thermic load and mechanical load are all very high.Improper or cool insufficient place and just easily cause hot-spot in some design, be easy to crack under the effect of and low frequency heat 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 heat fatigue.Therefore requiring when designing cylinder head to carry out rationally, fully cooling to cylinder head, preventing because of the phenomenon that cylinder head temperature is too high or temperature distributing disproportionation even generation localized heat stress is excessive, uniform temperature fields should be made as far as possible to distribute to reduce thermal stress.
Cylinder head water jacket in the past generally only has a water inlet and a main delivery port, and due to the restriction that cooling fluid is imported and exported, the flowing of cooling fluid is relatively slower, and very easily occurs that current are detained.Because water inlet is arranged in one end of engine, this just causes the other end cooling effect of engine poor.Because special coolant flow passage is not arranged in cylinder head exhaust side ridge area, cause the cooling effect of cylinder head exhaust side poor.
For above problem, be necessary to invent that a kind of cooling liquid speed is fast, the water jacket of engine cylinder cover of good cooling results.
Summary of the invention
The object of this invention is to provide a kind of cylinder head water jacket, each cylinder is furnished with water inlet and delivery port, can prevent the coolant flow in each region of water jacket from postponing, and occur that current are detained.
Present invention employs following technical scheme:
A kind of cylinder head water jacket, includes the coolant flow passage be formed between water inlet and delivery port, flows to allow cooling fluid in cylinder head; Each cylinder is provided with corresponding water inlet and main delivery port, and wherein, exhaust duct side is provided with three water inlets to form three independent streams, is respectively along two streams of exhaust duct wall flow and the stream along the ridge area flowing in the middle of two exhaust ducts; Cooling fluid is discharged along air intake duct sidewall both sides stream from main delivery port after three flow path.
Exhaust duct side cooling water channel is provided with upper strata stream and lower floor's stream, described upper strata stream and lower floor's stream all have three water inlets to form three independent streams in the exhaust duct side of cylinder head, part cooling fluid flows into lower floor's stream from water inlet, the cooling duct that part cooling fluid is communicated with by the same water inlet being positioned at cylinder cap side enters the cooling duct, upper strata formed by cylinder head outer wall and exhaust duct outer wall, and cooling fluid enters upper strata stream by cooling duct, upper strata.
The upper strata stream of exhaust duct side is communicated with upper strata stream and lower floor's stream of adjacent two exhaust ducts respectively with the coolant flow passage of lower floor stream.
Air intake duct cooling flowing path is entered after the coolant flow passage of described upper strata stream and lower floor's stream collects between exhaust duct and air inlet.
Ridge area between adjacent two air intake ducts is also provided with coolant flow passage, the adjacent two air intake duct cooling flowing paths of this coolant flow channel connection described.
Water jacket water inlet, each inblock cylinder air flue side is provided with two reinforcements, and described two reinforcements are divided into three water inlets with cylinder head body, forms the passage water inlet of the cooling fluid stream of the ridge area entered between exhaust duct both sides and two exhaust ducts respectively; Each inlet cylinder side water jacket water outlet is provided with a reinforcement, and described reinforcement is divided into two delivery ports with cylinder head body.
The end of cooling duct, described upper strata arranges an outlet, and this outlet connects with engine warm wind facies; Part cooling fluid is through this outlet supply engine warm braw.
The present invention's beneficial effect is compared with the existing technology:
1, each cylinder is furnished with water inlet and delivery port, can prevent the coolant flow in each region of water jacket from postponing, and occur that current are detained.
2, exhaust side is upper and lower dual flow path, and is provided with coolant flow passage in exhaust side ridge area, strengthens the cooling effect of exhaust side.
Accompanying drawing explanation
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 embodiment cylinder cover water jacket described in Fig. 1;
Fig. 3 is the bottom view of embodiment cylinder cover water jacket described in Fig. 1;
Fig. 4 is the air inlet side stereogram of embodiment cylinder cover water jacket described in Fig. 1, in order to the water (flow) direction of cylinder cap to be described;
Fig. 5 is the exhaust side stereogram of embodiment cylinder cover water jacket described in Fig. 3, in order to the water (flow) direction of cylinder cap to be described.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
A kind of cylinder head water jacket, includes the coolant flow passage be formed between water inlet and delivery port, flows to allow cooling fluid in cylinder head; Each cylinder is provided with corresponding water inlet and main delivery port, and wherein, exhaust duct side is provided with three water inlets to form three independent streams, is respectively along two streams of exhaust duct wall flow and the stream along the ridge area flowing in the middle of two exhaust ducts; Cooling fluid is discharged along air intake duct sidewall both sides stream from delivery port after three flow path.
Embodiment
With reference to figure 1 and Fig. 2, cylinder head water jacket is provided with water inlet 2 and main delivery port 3, is formed with the passage of predetermined volume between cooling fluid water inlet 2 and delivery port (3,4), and it is used as the passage of cooling, be also referred to as water jacket 1, cooling fluid is flowed by them.
Water inlet 2 is positioned at the exhaust duct side of water jacket, and main delivery port 3 is positioned at the air intake duct side of water jacket.Air intake duct side is single stream 10, and exhaust duct side is divided into upper strata stream 6 and lower floor's stream 9.Got up by the cooling duct 5 of exhaust duct side, cylinder cap side with water inlet connection and connect upper strata stream in cooling duct, upper strata.Ridge area between two exhaust ducts is also provided with cooling flowing path 7 and 8, and wherein cooling flowing path 7 is with lower floor's fluid communication, and cooling flowing path 8 upper layer fluid communication, can strengthen the cooling effect of exhaust side.
The coolant flow stream 8 of the upper strata stream 6 of exhaust duct side is communicated with the upper strata stream of adjacent two exhaust ducts; The coolant flow stream 7 of lower floor's stream 9 of exhaust duct side is communicated with lower floor's stream of adjacent two exhaust ducts.
Water jacket forms opening 12 by the sidewall of the stream 10 of air inlet side, for being installed into valve and forming air inlet.The sidewall of exhaust side upper strata stream 6 is formed with two openings 11, for installing exhaust valve, forms passage 13, for the formation of exhaust outlet between upper and lower two stream sidewalls.
As shown in Figure 3, water jacket water inlet, each inblock cylinder air flue side is provided with two reinforcements, described two reinforcements are divided into three water inlets with cylinder head body, enter the coolant flow passage water inlet of the ridge area between exhaust duct both sides and two exhaust ducts respectively; Each inlet cylinder side water jacket water outlet is provided with a reinforcement, and described reinforcement is divided into two delivery ports with cylinder head body.Also there is a reinforcement region 15 two adjacent cylinder air intake duct water jacket middle parts, and these regions are all for cylinder cap places reinforcement, increase the intensity of cylinder cap.
Enter air intake duct cooling flowing path after the coolant flow passage of upper strata stream, lower floor's stream and ridge area, exhaust duct side collects between exhaust duct and air inlet, and get back to cylinder block by air inlet side stream 10 after air intake duct side delivery port collects.
As described in Fig. 4 and Fig. 5, cooling fluid upwards enters cylinder head by exhaust duct side water inlet from cylinder block, major part cooling fluid flows directly to air intake duct effluent road by exhaust duct side lower floor stream 9, and remainder cooling fluid flows into upper strata stream 6 by the cooling duct 5 of exhaust duct side, cylinder cap side.Collect after most of cooling fluid coolant exhaust unexposed layer part in upper strata stream 6 and get back to cylinder block through air inlet side stream 10, remainder cooling fluid is through the delivery port 4 supply engine warm braw of inblock cylinder air flue side.Flow path channels all in Fig. 4 and Fig. 5 all can only one-way flow.Because each cylinder has delivery port, effectively can prevent current and be detained.
Road illustrate and describes embodiments of the invention to the greatest extent, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (5)
1. a cylinder head water jacket, includes the coolant flow passage be formed between water inlet and delivery port, flows to allow cooling fluid in cylinder head; It is characterized in that: each cylinder is provided with corresponding water inlet and main delivery port, wherein, exhaust duct side is provided with three water inlets to form three independent streams, is respectively along two streams of exhaust duct wall flow and the stream along the ridge area flowing in the middle of two exhaust ducts; Cooling fluid is discharged along air intake duct sidewall both sides stream from main delivery port after three flow path;
Exhaust duct side cooling water channel is provided with upper strata stream and lower floor's stream, described lower floor stream has three water inlets to form three independent streams in the exhaust duct side of cylinder head, part cooling fluid flows into lower floor's stream from water inlet, the cooling duct that part cooling fluid is communicated with by the same water inlet being positioned at cylinder cap side enters the cooling duct, upper strata formed by cylinder head outer wall and exhaust duct outer wall, and cooling fluid enters upper strata stream by cooling duct, upper strata;
The cooling fluid of described upper strata stream and lower floor's stream enters air intake duct cooling flowing path after collecting between exhaust duct and air inlet.
2. cylinder head water jacket according to claim 1, is characterized in that: the upper strata stream of exhaust duct side is communicated with upper strata stream and lower floor's stream of adjacent two exhaust ducts respectively with the coolant flow passage of lower floor stream.
3. cylinder head water jacket according to claim 1, is characterized in that: the ridge area between adjacent two air intake ducts is also provided with coolant flow passage, the adjacent two air intake duct cooling flowing paths of described coolant flow channel connection.
4. cylinder head water jacket according to claim 1, it is characterized in that: water jacket water inlet, each inblock cylinder air flue side is provided with two reinforcements, described two reinforcements are divided into three water inlets with cylinder head body, form the passage water inlet of the cooling fluid stream of the ridge area entered between exhaust duct both sides and two exhaust ducts respectively; Each inlet cylinder side water jacket water outlet is provided with a reinforcement, and described reinforcement is divided into two delivery ports with cylinder head body.
5. cylinder head water jacket according to claim 1, is characterized in that: the end of cooling duct, described upper strata arranges an outlet, and this outlet connects with engine warm wind facies; Part cooling fluid is through this outlet supply engine warm braw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210393561.3A CN102937054B (en) | 2012-10-15 | 2012-10-15 | Water jacket of engine cylinder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210393561.3A CN102937054B (en) | 2012-10-15 | 2012-10-15 | Water jacket of engine cylinder head |
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| Publication Number | Publication Date |
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| CN102937054A CN102937054A (en) | 2013-02-20 |
| CN102937054B true CN102937054B (en) | 2015-03-25 |
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| CN201210393561.3A Active CN102937054B (en) | 2012-10-15 | 2012-10-15 | Water jacket of engine cylinder head |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266961B (en) * | 2013-05-27 | 2015-12-23 | 安徽江淮汽车股份有限公司 | A kind of engine cylinder cap |
| CN103388536A (en) * | 2013-08-08 | 2013-11-13 | 安徽江淮汽车股份有限公司 | Water jacket structure for motor cylinder cover |
| JP6341100B2 (en) * | 2015-01-15 | 2018-06-13 | トヨタ自動車株式会社 | cylinder head |
| KR101905947B1 (en) * | 2016-03-16 | 2018-10-10 | 현대자동차주식회사 | A structure of water-jacket of cylinder head and a method for operating the same |
| CN106224118A (en) * | 2016-08-30 | 2016-12-14 | 重庆高金实业有限公司 | Two juxtaposed cylinders two stroke engine cylinder head jacket structure for water |
| CN106246318A (en) * | 2016-08-31 | 2016-12-21 | 奇瑞商用车（安徽）有限公司 | A kind of cooling structure for engine |
| CN114562378B (en) * | 2022-03-04 | 2023-05-12 | 一汽解放汽车有限公司 | Engine cylinder cover, engine and car |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT506473A2 (en) * | 2009-04-23 | 2009-09-15 | Avl List Gmbh | Cylinder head for internal combustion engine, has sub-passages connected to coolant collection channel by cooling passages, which are arranged in area of transverse engine plane, and coolant cover completely arranged on outer side |
| CN101846011A (en) * | 2009-03-24 | 2010-09-29 | Avl里斯脱有限公司 | Cylinder head of internal combustion engine |
| CN201635858U (en) * | 2010-03-25 | 2010-11-17 | 广西玉柴机器股份有限公司 | Four-cylinder diesel engine cylinder cover water jacket |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08177440A (en) * | 1994-12-26 | 1996-07-09 | Nissan Motor Co Ltd | Lubricating device of internal combustion engine |
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2012
- 2012-10-15 CN CN201210393561.3A patent/CN102937054B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846011A (en) * | 2009-03-24 | 2010-09-29 | Avl里斯脱有限公司 | Cylinder head of internal combustion engine |
| AT506473A2 (en) * | 2009-04-23 | 2009-09-15 | Avl List Gmbh | Cylinder head for internal combustion engine, has sub-passages connected to coolant collection channel by cooling passages, which are arranged in area of transverse engine plane, and coolant cover completely arranged on outer side |
| CN102498278A (en) * | 2009-04-23 | 2012-06-13 | Avl里斯脱有限公司 | Cylinder head of an internal combustion engine |
| CN201635858U (en) * | 2010-03-25 | 2010-11-17 | 广西玉柴机器股份有限公司 | Four-cylinder diesel engine cylinder cover water jacket |
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| CN102937054A (en) | 2013-02-20 |
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Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230022 No. 176 Dongliu Road, Hefei City, Anhui Province Patentee before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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