CN102635460A - Engine cylinder head and water jacket thereof - Google Patents
Engine cylinder head and water jacket thereof Download PDFInfo
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- CN102635460A CN102635460A CN2012101561292A CN201210156129A CN102635460A CN 102635460 A CN102635460 A CN 102635460A CN 2012101561292 A CN2012101561292 A CN 2012101561292A CN 201210156129 A CN201210156129 A CN 201210156129A CN 102635460 A CN102635460 A CN 102635460A
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- cooling
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Abstract
The invention provides a water jacket of an engine cylinder head, which is characterized in that a cooling channel in the prior art is divided into a first cooling channel and a second cooling channel; the outlets of the first cooling channel and the second cooling channel are connected with water outlets; a first connecting channel is communicated with an outlet of a bunch of water pipe and an oil injector opening; the outlet of the first connecting channel is connected with the inlet of the first cooling channel; a second connecting channel is communicated with a side wall of a firepower coast area and a side wall of an opposite upper water chamber; the inlet of the second connecting channel is connected with the outlet of the bunch of water pipe; and the outlet of the second connecting channel is connected with the inlet of the second cooling channel. Compared with the prior art, the water jacket provided by the invention divides the existing cooling channel into two channels, thus, the diameter of the cooling channel is reduced, the increment of velocity of cooling liquid is favored, the cooling temperature of the cooling liquid is ensured; meanwhile, as different cooling channels are increased, synchronous cooling of different positions of a cylinder head can be realized, uniform heating of the cylinder head can be ensured, so that the rigidity of the cylinder head is effectively increased and the service life of the cylinder head is prolonged. The embodiment of the invention further provides an engine cylinder head with the water jacket.
Description
Technical field
The present invention relates to the motor machining technology, more particularly, relate to a kind of engine cylinder cap and water jacket thereof.
Background technique
Because cylinder head works long hours under mal-conditions such as high temperature, high pressure, deep-etching and serious wear, the quality of the performance of its cooling system directly affects the intensity and the reliability of cylinder head and relevant parts thereof.Therefore, the water jacket of cooling air cylinder cap being improved, is the important measures that improve engine performance.
At present, most cylinder head jacket is produced through the mode of casting, and the cooling channel of the upper tank of the cylinder head jacket that obtains and the cooling liquid of lower header formation directly is connected the oil sprayer mouth with water outlet.But; Owing to the reason of casting makes that the diameter of cooling channel is bigger; The time that causes the cooling liquid in the above-mentioned flow field in cylinder head jacket, to stop is longer; For the crucial cool position of cylinder head or need the cooling capacity of position of emphasis cooling not enough, reduced the cooling performance of cylinder head jacket; Directly the oil sprayer mouth is linked to each other with water outlet simultaneously; Make other position of cylinder head not cool off accordingly; Diverse location in cylinder head jacket forms the temperature difference easily, makes cylinder head produce the effect repeatedly of thermal stress because of surface temperature distribution is inhomogeneous, forms heat fatigue cracking on the cylinder head surface; Cause the cylinder head sealing to descend, shorten working life simultaneously.
In sum, how to change the flow field of the cooling liquid of cylinder head jacket,, become present those skilled in the art's problem demanding prompt solution to improve to the cooling performance of cylinder head and the working life of cylinder head.
Summary of the invention
In view of this, the invention provides a kind of water jacket of engine cylinder cap, change the flow field of cooling liquid, to improve to the cooling performance of cylinder head and the working life of cylinder head.Another object of the present invention provides a kind of engine cylinder cap with above-mentioned water jacket.
In order to achieve the above object, the present invention provides following technological scheme:
A kind of water jacket of engine cylinder cap; Comprise the lower header that is provided with water intake, be provided with the upper tank of water outlet and be arranged on the cooling channel on the said upper tank; Wherein, said lower header has the firepower bank district that is provided with the oil sprayer mouth and the string mouth of a river, and the water intake of said lower header links to each other through the string waterpipe with the said string mouth of a river; Said cooling channel is communicated with said oil sprayer mouth and said water outlet
Wherein:
Said cooling channel is divided into first cooling channel and second cooling channel, and the outlet of the outlet of said first cooling channel and said second cooling channel all links to each other with said water outlet;
The outlet of said string waterpipe links to each other through first connecting passage with said oil sprayer mouth, and the outlet of said first connecting passage links to each other with the import of first cooling channel;
The sidewall in said firepower bank district links to each other through second connecting passage with the sidewall of relative said upper tank; And the import of said second connecting passage links to each other with the outlet of said string waterpipe, and the outlet of said second connecting passage links to each other with the import of said second cooling channel.
Preferably, in the above-mentioned water jacket, said first connecting passage is opened on the said lower header, and its number is four, and evenly arranges.
Preferably, in the above-mentioned water jacket, said second connecting passage is arranged along the thickness direction of said lower header and said upper tank sidewall.
Preferably, in the above-mentioned water jacket, said second connecting passage is along the side circumferential arrangement in said firepower bank district.
Preferably, in the above-mentioned water jacket, link to each other through the 3rd connecting passage between the outlet of said second cooling channel and the said water outlet.
Preferably, in the above-mentioned water jacket, said the 3rd connecting passage is opened on the said upper tank.
Preferably, in the above-mentioned water jacket, also comprise being arranged between said upper tank and the said lower header, the 4th connecting passage that its import links to each other with said water intake, and the outlet of said the 4th connecting passage links to each other with the import of said the 3rd connecting passage.
Preferably, in the above-mentioned water jacket, said the 4th connecting passage is opened in the end that said water outlet is set of said upper tank, and arranges along the thickness direction of said upper tank and said lower header.
A kind of engine cylinder cap; Comprise cylinder head body and the water jacket that is arranged on the engine cylinder cap that is used to cool off said cylinder head body on the said cylinder head body; Wherein, the water jacket of said engine cylinder cap is the as above water jacket of each described engine cylinder cap.
Can find out from above-mentioned technological scheme; The water jacket of engine cylinder cap provided by the invention comprises the lower header that is provided with water intake, is provided with the upper tank of water outlet and is arranged on the cooling channel on the upper tank, wherein; Lower header has the firepower bank district that is provided with the oil sprayer mouth and the string mouth of a river; The water intake of lower header links to each other through the string waterpipe with the string mouth of a river, and the cooling channel is communicated with oil sprayer mouth and water outlet, in the technique scheme; The cooling channel is divided into first cooling channel and second cooling channel; The outlet of string waterpipe links to each other through first connecting passage with the oil sprayer mouth, and the outlet of first connecting passage links to each other with the import of first cooling channel, and the outlet of first cooling channel links to each other with water outlet; The sidewall in firepower bank district links to each other through second connecting passage with the opposing sidewalls of upper tank; And the import of second connecting passage links to each other with the outlet of string waterpipe; The outlet of second connecting passage links to each other with the import of second cooling channel, and the outlet of second cooling channel links to each other with water outlet.
During work, cooling liquid arrives firepower bank district through the string waterpipe after water intake enters into lower header, and a part of cooling liquid arrives first cooling channel through first connecting passage, and discharges from water outlet through first cooling channel; Another part cooling liquid reach upper tank from the sidewall in firepower bank district through second connecting passage with the relative sidewall in firepower bank district, and discharge from water outlet through second connecting passage.Through existing cooling channel is divided into two passes, promptly reduced the diameter of cooling channel, help increasing the flow velocity of cooling liquid, guarantee the chilling temperature of cooling liquid; Increase different cooling channels simultaneously, can realize simultaneously the diverse location of cylinder head is cooled off, guarantee being heated evenly of cylinder head, therefore effectively increased the rigidity of cylinder head, reduced thermal stress, improved the working life of cylinder head.
The present invention also provides a kind of engine cylinder cap; Comprise cylinder head body and the water jacket that is arranged on the engine cylinder cap that is used for cooling air cylinder cap body on the cylinder head body; Wherein, the water jacket of above-mentioned engine cylinder cap is above-mentioned each the water jacket of engine cylinder cap.Because above-mentioned engine cylinder cap water jacket has above-mentioned technique effect, therefore, the engine cylinder cap with this engine cylinder cap water jacket also has identical technique effect.
Description of drawings
In order to be illustrated more clearly in the technological scheme in the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the lower header that Fig. 1 provides for the embodiment of the invention;
The structural representation of the upper tank that Fig. 2 provides for the embodiment of the invention;
The side view of the water jacket that Fig. 3 provides for the embodiment of the invention.
Embodiment
The invention provides a kind of water jacket of engine cylinder cap, change the flow field of cooling liquid, to improve the cooling performance of cylinder head and the working life of cylinder head.Another core of the present invention provides a kind of engine cylinder cap with above-mentioned water jacket.
To combine the accompanying drawing in the embodiment of the invention below, the technological scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Please refer to accompanying drawing 1-Fig. 3; The embodiment of the invention discloses a kind of water jacket of engine cylinder cap; Comprise lower header 1, the upper tank 2 that is provided with water outlet that is provided with water intake and be arranged on the cooling channel on the upper tank 2 that wherein, lower header 1 has the firepower bank district that is provided with the oil sprayer mouth 4 and the string mouth of a river 3; The water intake of lower header 1 links to each other through string waterpipe 11 with the string mouth of a river 3; And the cooling channel is communicated with oil sprayer mouth 4 and water outlet, in order to realize the cooling procedure of above-mentioned water jacket, in the water jacket of engine cylinder cap provided by the invention; The cooling channel is divided into first cooling channel 21 and second cooling channel 22, and the outlet of the outlet of first cooling channel 21 and second cooling channel 22 links to each other with water outlet all; The outlet of string waterpipe 11 links to each other through first connecting passage 12 with oil sprayer mouth 4, and the outlet of first connecting passage 12 links to each other with the import of first cooling channel 21; The sidewall in firepower bank district links to each other through second connecting passage 25 with the sidewall of relative upper tank 2, and the import of second connecting passage 25 with the string waterpipe 11 outlet link to each other, the outlet of second connecting passage 25 links to each other with the import of second cooling channel 22.
During work, cooling liquid enters into lower header 1 back from water intake and arrives firepower bank district through string waterpipe 11, and a part of cooling liquid arrives first cooling channel 21 through first connecting passage 12, and through discharging from water outlet first cooling channel 21; Another part cooling liquid reach upper tank 2 from the sidewall in firepower bank district through second connecting passage 25 with the relative sidewall in firepower bank district, and through discharging from water outlet second cooling channel 22.Through existing cooling channel is divided into two passes, promptly reduced the diameter of cooling channel, help increasing the flow velocity of cooling liquid, guarantee the chilling temperature of cooling liquid; Increase different cooling channels simultaneously, can realize simultaneously the diverse location of cylinder head is cooled off, avoided the cooling dead angle of cylinder head jacket; The cylinder head surface is heated evenly; Therefore effectively increase the rigidity of cylinder head, reduced its thermal stress, improved the working life of cylinder head.
Because the temperature in firepower bank district is higher, in order better firepower bank district to be carried out uniform decrease in temperature, in the present embodiment first connecting passage 12 is opened in lower header 1, promptly more directly contacts firepower bank district.And the number of first connecting passage 12 is set to four; And evenly arrange; Effectively guarantee the uniform decrease in temperature in firepower bank district, avoid the uneven and effect repeatedly thermal stress that produces of Yin Wendu to cause cylinder head the appearance of the phenomenon of crackle, the working life of further having improved cylinder head to occur.
In the scheme further; Second connecting passage 25 is arranged along the thickness direction of lower header 1 and upper tank 2 both sidewalls; Through arranging second connecting passage 25 in the sidewall thickness direction of lower header 1 and upper tank 2, increased the cooling range of water jacket, promptly reduce the cooling dead angle of cooling liquid as far as possible.
In the preferred embodiment, second connecting passage 25 is set to promptly arrange second connecting passage 25 along the circular edge in firepower bank district along the side circumferential arrangement in firepower bank district, has further increased the cooling range of cooling channel.
In the water jacket production process of the engine cylinder cap that in to present embodiment, provides, link to each other through the 3rd connecting passage 24 between the outlet of second cooling channel 22 and the water outlet.The shape of second cooling channel 22 can be set to different shapes according to actual needs in the actual production; The two passes that in the present embodiment first cooling channel 21 and second cooling channel 22 is set to separate; And water outlet is arranged on a side of first cooling channel 21; To be communicated with in order making between second cooling channel 22 and the water outlet, between second cooling channel 22 and water outlet, to be provided with the 3rd connecting passage 24.
It will be appreciated by persons skilled in the art that the passage that provides in the present embodiment can also can be for offering passage for the pipeline of arranging on upper tank 2 or lower header 1.In order to guarantee the sealing of the 3rd connecting passage 24; The 3rd connecting passage 24 is arranged on the upper tank 2; Promptly on upper tank 2, offer but the 3rd connecting passage 24 crossed of flow of cooling; In order to adapt to the shape of upper tank 2, the shape of the 3rd connecting passage 24 is set to the arcuate structure with the shape adaptation of upper tank 2.
On the basis of above-mentioned technological method, this water jacket also comprises and being arranged between upper tank 2 and the lower header 1, the 4th connecting passage 26 that its import links to each other with water intake, and the outlet of the 4th connecting passage 26 links to each other with the import of the 3rd connecting passage 24.During work; The a part of cooling liquid that enters into lower header 1 from water intake flow into firepower bank district through the string mouth of a river 3; Another part enters into the 3rd connecting passage 24 through the 4th connecting passage 26, and flows out through water outlet, has promptly accomplished the cooling procedure of the cooling liquid of another part.
In order further to enlarge the cooling range of this water jacket; The 4th connecting passage 26 is opened in an end of the water outlet of upper tank 2; And the thickness direction along upper tank 2 and lower header 1 is arranged, realizes that through above-mentioned layout the various piece of water jacket all has cooling liquid to pass through, and has avoided the cooling dead angle; Effectively guaranteed of the even cooling of this water jacket, further improved the thermal stress requirement that engine cylinder cap can bear engine cylinder cap.
The embodiment of the invention also discloses a kind of engine cylinder cap; Comprise cylinder head body and the water jacket that is arranged on the engine cylinder cap that is used for cooling air cylinder cap body on the cylinder head body; Wherein, The water jacket of above-mentioned engine cylinder cap is the water jacket like disclosed engine cylinder cap among the above-mentioned embodiment, therefore has all technique effects of the water jacket of above-mentioned engine cylinder cap concurrently, and this paper repeats no more.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and other embodiments' difference that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the present invention.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiments shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (9)
1. the water jacket of an engine cylinder cap; Comprise lower header (1), the upper tank (2) that is provided with water outlet that is provided with water intake and be arranged on the cooling channel on the said upper tank (2); Wherein, said lower header (1) has the firepower bank district that is provided with the oil sprayer mouth (4) and the string mouth of a river (3), and the water intake of said lower header (1) links to each other through string waterpipe (11) with the said string mouth of a river (3); Said cooling channel is communicated with said oil sprayer mouth (4) and said water outlet
It is characterized in that:
Said cooling channel is divided into first cooling channel (21) and second cooling channel (22), and the outlet of the outlet of said first cooling channel (21) and said second cooling channel (22) all links to each other with said water outlet;
The outlet of said string waterpipe (11) links to each other through first connecting passage (12) with said oil sprayer mouth (4), and the outlet of said first connecting passage (12) links to each other with the import of first cooling channel (21);
The sidewall in said firepower bank district links to each other through second connecting passage (25) with the sidewall of relative said upper tank (2); And the import of said second connecting passage (25) links to each other with the outlet of said string waterpipe (11), and the outlet of said second connecting passage (25) links to each other with the import of said second cooling channel (22).
2. water jacket according to claim 1 is characterized in that, said first connecting passage (12) is opened on the said lower header (1), and its number is four, and evenly arranges.
3. water jacket according to claim 1 is characterized in that, said second connecting passage (25) is arranged along said lower header (1) and the thickness direction of both sidewalls of said upper tank (2).
4. water jacket according to claim 3 is characterized in that, said second connecting passage (25) is along the side circumferential arrangement in said firepower bank district.
5. water jacket according to claim 1 is characterized in that, links to each other through the 3rd connecting passage (24) between the outlet of said second cooling channel (22) and the said water outlet.
6. water jacket according to claim 5 is characterized in that, said the 3rd connecting passage (24) is opened on the said upper tank (2).
7. water jacket according to claim 5; It is characterized in that; Also comprise and being arranged between said upper tank (2) and the said lower header (1); The 4th connecting passage (26) that its import links to each other with said water intake, and the outlet of said the 4th connecting passage (26) links to each other with the import of said the 3rd connecting passage (24).
8. water jacket according to claim 1 is characterized in that, said the 4th connecting passage (26) is opened in the end that said water outlet is set of said upper tank (2), and arranges along the thickness direction of said upper tank (2) and said lower header (1).
9. engine cylinder cap; Comprise cylinder head body and the water jacket that is arranged on the engine cylinder cap that is used to cool off said cylinder head body on the said cylinder head body; It is characterized in that the water jacket of said engine cylinder cap is the water jacket like each described engine cylinder cap of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101561292A CN102635460A (en) | 2012-05-18 | 2012-05-18 | Engine cylinder head and water jacket thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101561292A CN102635460A (en) | 2012-05-18 | 2012-05-18 | Engine cylinder head and water jacket thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102635460A true CN102635460A (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101561292A Pending CN102635460A (en) | 2012-05-18 | 2012-05-18 | Engine cylinder head and water jacket thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915275A (en) * | 2019-03-28 | 2019-06-21 | 广西玉柴机器股份有限公司 | A kind of three way type cylinder cap cooling structure of exhaust duct part necking |
-
2012
- 2012-05-18 CN CN2012101561292A patent/CN102635460A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915275A (en) * | 2019-03-28 | 2019-06-21 | 广西玉柴机器股份有限公司 | A kind of three way type cylinder cap cooling structure of exhaust duct part necking |
| WO2020192043A1 (en) * | 2019-03-28 | 2020-10-01 | 广西玉柴机器股份有限公司 | Three-way cylinder head cooling structure having partially tapered exhaust channel |
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Application publication date: 20120815 |