CN104074621A - Water jacket for cylinder cover - Google Patents
Water jacket for cylinder cover Download PDFInfo
- Publication number
- CN104074621A CN104074621A CN201410318725.5A CN201410318725A CN104074621A CN 104074621 A CN104074621 A CN 104074621A CN 201410318725 A CN201410318725 A CN 201410318725A CN 104074621 A CN104074621 A CN 104074621A
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- China
- Prior art keywords
- air outlet
- cylinder
- outlet flue
- water hole
- water
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a water jacket for a cylinder cover. The water jacket for the cylinder cover is partitioned into an upper-layer water jacket and a lower-layer water jacket by middle partition plates, and watering holes are formed in the middle partition plates between a first cylinder exhaust channel and the front end surface of the water jacket for the cylinder cover, between the first cylinder exhaust channel and a second cylinder exhaust channel, as well as between the second cylinder exhaust channel and a third cylinder exhaust channel. According to the water jacket for the cylinder cover disclosed by the invention, by adding the first watering hole, the second watering hole and the third watering hole, the dead areas of the upper-layer water jacket in the prior art are eliminated, the cooling effects of a first cavity and a second cavity are improved, and then the cooling effects of the upper inner cavity and the lower inner cavity of the cylinder cover; compared with the prior art, a fourth watering hole and a fifth watering hole are relatively small, and the diameter of the first watering hole is sequentially increased from the front end of the cylinder cover to the rear end, thus the whole water flowing channel of cooling water is more stable and more balanced, uniform cooling for the cylinder cover is guaranteed, the cracking risk of the cylinder cover is reduced, the life of the cylinder cover is prolonged, and the quality of an engine is improved.
Description
Technical field
The present invention relates to engine art, particularly a kind of cylinder head jacket.
Background technique
The cylinder head jacket of motor is the flow channel that the cavity between the structures such as intake duct in cylinder head, air outlet flue forms.One side of cylinder head is exhaust side 1, and opposite side is air inlet side 2.Cylinder head is separated by central diaphragm, so cylinder head jacket is separated into upper strata water jacket and lower floor's water jacket, and the water intake of cylinder head jacket is in the bottom of lower floor's water jacket, and its water outlet 3 is at the front end of upper strata water jacket, and near air inlet side 2.Therefore, on central diaphragm, be provided with a plurality of on water hole, make cooling water cover into upper strata water jacket from lower layer of water, and flow out from water outlet 3.Fig. 1 shows the plan view of space bar, and in air inlet side 2, between every pair of adjacent intake duct 9, upper strata water jacket communicates with lower floor water jacket, water hole 7 in formation '; Position near exhaust side 1, is provided with water hole 10 between the 4th cylinder air outlet flue 8 and the ear end face of cylinder head jacket; Central diaphragm between the 4th cylinder air outlet flue 8 and the 3rd cylinder air outlet flue 14 be provided with water hole 11 ', thus, cooling water has formed the flow channel as shown in the arrow in Fig. 1.
Because lower floor's water jacket is crossing current, upper strata water jacket is vertical stream, a plurality of upper water holes 7 ' outlet too large, upper water area is too large, cause most of cooling water from above-mentioned water hole 7 ', 10He Shang water hole, upper water hole 11 ' the direct vertical water outlet 3 that flows to of outlet, be equivalent to current short circuit, between the first cylinder air outlet flue and the front-end face of cylinder head jacket, between the first cylinder air outlet flue and the second cylinder air outlet flue and between the second cylinder air outlet flue and the 3rd cylinder air outlet flue, water hole is not set, and the too close exhaust side in upper water hole 10, therefore the cooling water in the second cavity 12 of the first cavity 4 between these adjacent cylinder air outlet flues and cylinder head jacket rear end very little, form dead band, the cooling liquid that causes these dead bands is overheated and gasification is serious, cause the cooling performance of cylinder head bad, cause the generation of the faults such as cylinder head cracking.
The information that is disclosed in this background technique part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply that in any form this information structure has been the known prior art of persons skilled in the art.
Summary of the invention
The object of the present invention is to provide a kind of cylinder head jacket, thereby overcome the bad defect of existing cylinder head jacket cooling performance.
For achieving the above object, the invention provides a kind of cylinder head jacket, cylinder head jacket is separated into upper strata water jacket and lower floor's water jacket by central diaphragm, between the first cylinder air outlet flue and the front-end face of cylinder head jacket, between the first cylinder air outlet flue and the second cylinder air outlet flue and the central diaphragm between the second cylinder air outlet flue and the 3rd cylinder air outlet flue be provided with water hole on first.
Preferably, in technique scheme, in the rear end of cylinder head, the center of central diaphragm is provided with water hole on second.
Preferably, in technique scheme, in the rear end of cylinder head, the central diaphragm of close air inlet side is provided with water hole on the 3rd.
Preferably, in technique scheme, between adjacent intake duct, upper strata water jacket is communicated with lower floor water jacket, forms water hole on the 4th, and the upper water area in water hole is 300mm on the 4th
2～500mm
2.
Preferably, in technique scheme, the central diaphragm between the 3rd cylinder air outlet flue and the 4th cylinder air outlet flue is provided with water hole on the 5th, and the diameter in water hole is 7mm～10mm on the 5th.
Preferably, in technique scheme, water hole increases successively between the first cylinder air outlet flue and the front-end face of cylinder head jacket, between the first cylinder air outlet flue and the second cylinder air outlet flue and on first between the second cylinder air outlet flue and the 3rd cylinder air outlet flue.
Preferably, in technique scheme, the diameter in water hole is identical with the diameter in water hole on the 3rd on second.
Compared with prior art, the present invention has following beneficial effect:
By increasing, on first, on water hole, second, on water hole, the 3rd water hole in the present invention, eliminated the prior art dead band of water jacket at the middle and upper levels, improve the cooling effect of the first cavity and the second cavity, and then improved the cooling effect of cylinder head top inner chamber and lower lumen; With respect to prior art, on the 4th, on water hole and the 5th, water hole is relatively little, and from the front end of cylinder head to rear end, on first, the diameter in water hole increases successively, make the whole flow channel of cooling water more stable, more balanced, guarantee that cylinder head is subject to cooling uniformly, reduced the risk of cylinder head cracking, extend the life-span of cylinder head, improved the quality of motor.
Accompanying drawing explanation
Fig. 1 is the plan view of space bar of the cylinder head jacket of prior art.
Fig. 2 is according to the plan view of the space bar of cylinder head jacket of the present invention.
Main description of reference numerals:
1-exhaust side, 2-air inlet side, 3-water outlet, 4-the first cavity, water hole on 5-second, water hole on 6-the 3rd, water hole on 7-the 4th, 7 '-upper water hole, 8-the 4th cylinder air outlet flue, 9-intake duct, water hole on 10-the 6th, water hole on 11-the 5th, 11 '-upper water hole, 12-the second cavity, water hole on 13-first, 14-the 3rd cylinder air outlet flue, 15-the second cylinder air outlet flue, 16-the first cylinder air outlet flue.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subject to the restriction of embodiment.
Unless separately there is other clearly to represent, otherwise in whole specification and claims, term " comprises " or its conversion was stated being understood to include as " comprising " or " including " etc. element or constituent element, and do not get rid of other element or other constituent element.
As shown in Figure 1, in prior art between adjacent a plurality of intake ducts 9, upper strata water jacket communicates with lower floor water jacket, water hole 7 in formation ', upper water hole 7 ' upper water area be 700mm
2～900mm
2.Position near exhaust side 1, is provided with water hole 10 between the 4th cylinder air outlet flue 8 and the ear end face of cylinder head jacket.Central diaphragm between the 4th cylinder air outlet flue 8 and the 3rd cylinder air outlet flue 14 be provided with water hole 11 ', upper water hole 11 ' diameter be 13mm～15mm.Between the 3rd cylinder air outlet flue 14 and the second cylinder air outlet flue 15, the second cavity 12 of between the second cylinder air outlet flue 15 and the first cylinder air outlet flue 16 and the first cavity 4 between the first cylinder air outlet flue 16 and the front-end face of cylinder head jacket and cylinder head jacket rear end flows through without cooling liquid, forms dead band.
As shown in Figure 2, according to cylinder head jacket of the present invention, between the 3rd cylinder air outlet flue 14 and the second cylinder air outlet flue 15, between the second cylinder air outlet flue 15 and the first cylinder air outlet flue 16 and be respectively equipped with water hole 13 on first on the space bar between the first cylinder air outlet flue 16 and the front-end face of cylinder head jacket, the cooling liquid of lower floor's water jacket is flowed in the first cavity 4.Position near exhaust side 1, is provided with water hole 10 on the 6th between the 4th cylinder air outlet flue 8 and the ear end face of cylinder head jacket.In the rear end of cylinder head jacket, the center of central diaphragm is provided with water hole 5 on second, is being provided with water hole 6 on the 3rd near on the central diaphragm of air inlet side simultaneously, and making has cooling water to flow through in the second cavity 12.
Preferably, on between the first cylinder air outlet flue 16 and the front-end face of cylinder head jacket first, the diameter in water hole 13 is less than the diameter in water hole 13 on first between the second cylinder air outlet flue 15 and the first cylinder air outlet flue 16, and on first between the second cylinder air outlet flue 15 and the first cylinder air outlet flue 16, the diameter in water hole 13 is less than the diameter in water hole 13 on first between the 3rd cylinder air outlet flue 14 and the second cylinder air outlet flue 15.Preferably, on first between the first cylinder air outlet flue 16 and the front-end face of cylinder head jacket, the diameter in water hole 13 is 3mm～6mm.On between the second cylinder air outlet flue 15 and the first cylinder air outlet flue 16 first, the diameter in water hole 13 is 5mm～7mm.On between the 3rd cylinder air outlet flue 14 and the second cylinder air outlet flue 15 first, the diameter in water hole 13 is 6mm～8mm.
Preferably, the diameter in water hole 5 is identical with the diameter in water hole 6 on the 3rd on second.Preferably, on water hole 5 and the 3rd, the diameter in water hole 6 is 7mm～9mm on second.
According to cylinder head jacket of the present invention, at the rear portion of cylinder head jacket, it is 7mm～10mm that the central diaphragm between the 4th cylinder air outlet flue 8 and the 3rd cylinder air outlet flue 14 is provided with on the 5th the diameter in water hole 11 on water hole 11, the five.Between adjacent intake duct 9, upper strata water jacket communicates with lower floor water jacket, and forming on the 4th the upper water area in water hole 7 on water hole 7, the four is 300mm
2～500mm
2.
According to cylinder head jacket of the present invention, cooling water covers into upper strata water jacket by water hole 11 on water hole 7 and the 5th on water hole 6, the 4th on water hole 5, the 3rd on water hole on first 13, second from lower layer of water, and flow out from water outlet 3, form the flow channel that the arrow shown in Fig. 2 forms.
By increasing, on first, on water hole, second, on water hole, the 3rd water hole in the present invention, eliminated the prior art dead band of water jacket at the middle and upper levels, improve the cooling effect of the first cavity and the second cavity, and then improved the cooling effect of cylinder head top inner chamber and lower lumen; With respect to prior art, on the 4th, on water hole and the 5th, water hole is relatively little, and from the front end of cylinder head to rear end, on first, the diameter in water hole increases successively, make the whole flow channel of cooling water more stable, more balanced, guarantee that cylinder head is subject to cooling uniformly, reduced the risk of cylinder head cracking, extend the life-span of cylinder head, improved the quality of motor.
The aforementioned description to concrete exemplary of the present invention is for the object with illustration is described.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.Exemplary embodiment is selected and the object described is to explain certain principles of the present invention and practical application thereof, thereby made those skilled in the art can realize and utilize various exemplary of the present invention and various selection and change.Scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (7)
1. a cylinder head jacket, described cylinder head jacket is separated into upper strata water jacket and lower floor's water jacket by central diaphragm, it is characterized in that, between the first cylinder air outlet flue and the front-end face of cylinder head jacket, between the first cylinder air outlet flue and the second cylinder air outlet flue and the described central diaphragm between the second cylinder air outlet flue and the 3rd cylinder air outlet flue be provided with water hole on first.
2. cylinder head jacket according to claim 1, is characterized in that, in the rear end of cylinder head, the center of described central diaphragm is provided with water hole on second.
3. cylinder head jacket according to claim 1 and 2, is characterized in that, in the rear end of cylinder head, the described central diaphragm of close air inlet side is provided with water hole on the 3rd.
4. cylinder head jacket according to claim 3, is characterized in that, between adjacent intake duct, described upper strata water jacket is communicated with described lower floor water jacket, forms water hole on the 4th, and the upper water area in water hole is 300mm on the described the 4th
2～500mm
2.
5. cylinder head jacket according to claim 4, is characterized in that, the described central diaphragm between the 3rd cylinder air outlet flue and the 4th cylinder air outlet flue is provided with water hole on the 5th, and the diameter in water hole is 7mm～10mm on the described the 5th.
6. cylinder head jacket according to claim 1, it is characterized in that, the diameter in water hole increases successively between the first cylinder air outlet flue and the front-end face of cylinder head jacket, between the first cylinder air outlet flue and the second cylinder air outlet flue and on described first between the second cylinder air outlet flue and the 3rd cylinder air outlet flue.
7. cylinder head jacket according to claim 3, is characterized in that, the diameter in water hole is identical with the diameter in water hole on the described the 3rd on described second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410318725.5A CN104074621A (en) | 2014-07-07 | 2014-07-07 | Water jacket for cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410318725.5A CN104074621A (en) | 2014-07-07 | 2014-07-07 | Water jacket for cylinder cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104074621A true CN104074621A (en) | 2014-10-01 |
Family
ID=51596173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410318725.5A Pending CN104074621A (en) | 2014-07-07 | 2014-07-07 | Water jacket for cylinder cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104074621A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478719A (en) * | 2015-12-14 | 2016-04-13 | 中国北方发动机研究所(天津) | Casting method of cylinder cover having middle division plate in anti-crack structure |
| CN114233507A (en) * | 2021-12-07 | 2022-03-25 | 奇瑞汽车股份有限公司 | Cooling water jacket of engine cylinder head |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0693619A1 (en) * | 1994-07-19 | 1996-01-24 | Isuzu Motors Limited | Cylinder head of engine |
| JP2000104624A (en) * | 1998-09-25 | 2000-04-11 | Toyota Motor Corp | Engine cylinder head |
| JP2000303903A (en) * | 1999-04-26 | 2000-10-31 | Toyota Motor Corp | Cylinder head for multicylinder internal combustion engine |
| CN102635459A (en) * | 2012-05-06 | 2012-08-15 | 中国兵器工业集团第七0研究所 | Novel water cavity of cylinder cover |
| CN102822489A (en) * | 2010-06-25 | 2012-12-12 | 康明斯知识产权有限公司 | Cylinder head having plural water jackets and cast-in water rail |
| CN103266961A (en) * | 2013-05-27 | 2013-08-28 | 安徽江淮汽车股份有限公司 | Engine cylinder cover |
| CN203515845U (en) * | 2013-09-18 | 2014-04-02 | 潍柴动力股份有限公司 | Diesel engine and cylinder cover thereof |
| CN203978635U (en) * | 2014-07-07 | 2014-12-03 | 广西玉柴机器股份有限公司 | A kind of cylinder head jacket |
-
2014
- 2014-07-07 CN CN201410318725.5A patent/CN104074621A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0693619A1 (en) * | 1994-07-19 | 1996-01-24 | Isuzu Motors Limited | Cylinder head of engine |
| JP2000104624A (en) * | 1998-09-25 | 2000-04-11 | Toyota Motor Corp | Engine cylinder head |
| JP2000303903A (en) * | 1999-04-26 | 2000-10-31 | Toyota Motor Corp | Cylinder head for multicylinder internal combustion engine |
| CN102822489A (en) * | 2010-06-25 | 2012-12-12 | 康明斯知识产权有限公司 | Cylinder head having plural water jackets and cast-in water rail |
| CN102635459A (en) * | 2012-05-06 | 2012-08-15 | 中国兵器工业集团第七0研究所 | Novel water cavity of cylinder cover |
| CN103266961A (en) * | 2013-05-27 | 2013-08-28 | 安徽江淮汽车股份有限公司 | Engine cylinder cover |
| CN203515845U (en) * | 2013-09-18 | 2014-04-02 | 潍柴动力股份有限公司 | Diesel engine and cylinder cover thereof |
| CN203978635U (en) * | 2014-07-07 | 2014-12-03 | 广西玉柴机器股份有限公司 | A kind of cylinder head jacket |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478719A (en) * | 2015-12-14 | 2016-04-13 | 中国北方发动机研究所(天津) | Casting method of cylinder cover having middle division plate in anti-crack structure |
| CN114233507A (en) * | 2021-12-07 | 2022-03-25 | 奇瑞汽车股份有限公司 | Cooling water jacket of engine cylinder head |
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| PB01 | Publication | ||
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Application publication date: 20141001 |