CN202370682U - Diesel engine and air cylinder cover of diesel engine - Google Patents
Diesel engine and air cylinder cover of diesel engine Download PDFInfo
- Publication number
- CN202370682U CN202370682U CN2011205338321U CN201120533832U CN202370682U CN 202370682 U CN202370682 U CN 202370682U CN 2011205338321 U CN2011205338321 U CN 2011205338321U CN 201120533832 U CN201120533832 U CN 201120533832U CN 202370682 U CN202370682 U CN 202370682U
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- Prior art keywords
- cylinder head
- water
- air cylinder
- cylinder cover
- cooling
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Abstract
The utility model provides an air cylinder cover. A first water inlet passage is arranged at the bottom of a nose bridge region of the air cylinder cover, a plurality of water supply holes communicated with the first water inlet passage are arranged on a base of the air cylinder cover, the inside of the air cylinder cover is provided with a first cooling cavity communicated with the water supply holes, the bottom of the exhaust side of the air cylinder cover is provided with a second water inlet passage, a water saving hole communicated with the second water inlet passage is arranged on the base of the air cylinder cover, a second cooling cavity is arranged inside the exhaust side, the hole diameter of the second water inlet passage is not greater than the hoe diameter of the first water inlet passage, and the top of the air cylinder cover is provided with a water outlet passage communicated with the first cooling cavity and the second cooling cavity. In the air cylinder cover, cooling water is discharged from the top of the air cylinder cover, so air in the cooling water can be easily exhausted out from the air cylinder cover, the air in the water is prevented from being accumulated on the top of the air cylinder cover, the cooling effect of the noise bridge region of the air cylinder cover is finally improved, and further, the cooling effect on the air cylinder cover is improved. The utility model also provides a diesel engine provided with the air cylinder cover.
Description
Technical field
The utility model relates to cylinder head cooling technology field, more particularly, relates to a kind of diesel engine and cylinder head thereof.
Background technique
At present, domestic most diesel engine using four valve cylinder head.Because it is more that the bridge of the nose district of cylinder head is heated, so bridge of the nose district is the important cooling position of cylinder head.Existing cylinder head adopts the type of cooling in the bridge of the nose district of preferential cooling air cylinder cap, can cool off bridge of the nose district preferably.
Existing cylinder head and cooling structure thereof, as shown in figures 1 and 3, the cooling chamber of cylinder head is divided into two-part up and down: go up cooling chamber 18 and following cooling chamber 19.
As shown in Figure 2, Fig. 2 be the A of Fig. 1 to structural representation, existing cylinder head generally is provided with two suction valve cones 13, two exhaust valve seats 14 and four and goes up water holes 12.Last water hole 12 is one group with two and is distributed in the both sides of suction valve cone 13 and the both sides of exhaust valve seat 14 respectively, and goes up the periphery that water hole 12 all is positioned at suction valve cone 13 and exhaust valve seat 14.
The outlet pipe of the cylinder head that existing technology provides is realized being fixedly linked with the relief opening 110 of cylinder head through holding down bolt 111; As shown in Figure 4; Holding down bolt 111 is positioned at the top and the bottom of relief opening 110, and the line between the holding down bolt 111 is parallel with the symmetrical line of relief opening 110.
The type of cooling of existing cylinder head is following, as shown in Figures 2 and 3:
Cooling water is by the intake tunnel 17 of the bottom that is positioned at cylinder head; Through last water hole 12; Get into the bridge of the nose district of cylinder head, cooling water arrives the top of going up cooling chamber 18 through getting into cooling chamber 18 in the string water hole between last cooling chamber 18 and the following cooling chamber 19 15 until cooling water then; Last cooling water flows into the exhaust side of cylinder head from the top of last cooling chamber 18; Until the following cooling chamber 19 that arrives cylinder head, warp is the osculum 11 of the exhalant canal 16 effluent gases cylinder caps of cooling chamber 19 bottoms down, promptly discharges cylinder head.
But; There is gas in the cooling water inevitably; Because cooling water arrive to be gone up the exhaust side that can flow into cylinder head behind the top of cooling chamber 18; Finally, make that the gas in the cooling water is difficult for discharging cylinder head, finally cause gas major part in the cooling water to accumulate in the top of cooling chamber 18 from the bottom effluent gases cylinder cap of cooling chamber 19 down.Along with the continuous cooling of cooling water to cylinder head, gas also constantly is accumulated in the top of cooling chamber 18.Because the heat conductivity of gas is lower, the existence of gas is unfavorable for that cooling water cools off the top of cylinder head.Therefore, gas accumulates in the top of cooling chamber 18, can reduce the cooling effect of cooling water to cylinder head, especially can reduce the cooling effect of cooling water to cylinder head bridge of the nose district.
In sum, how a kind of cylinder head being provided, with the cooling effect of raising to the bridge of the nose district of cylinder head, and then improving the cooling effect to cylinder head, is present those skilled in the art's problem demanding prompt solution.
The model utility content
In view of this, the utility model provides a kind of cylinder head, has improved the cooling effect to the bridge of the nose district of cylinder head, and then has improved the cooling effect to cylinder head.
In order to achieve the above object, the utility model provides following technological scheme:
A kind of cylinder head; The bottom in the bridge of the nose district of said cylinder head is provided with first intake tunnel; The base of said cylinder head is provided with the some water holes of going up that are connected with said first intake tunnel, and the set inside of said cylinder head has first cooling chamber that is connected with said upward water hole;
The bottom of the exhaust side of said cylinder head is provided with second intake tunnel; The base of said cylinder head is provided with the water saving holes that is connected with said second intake tunnel; The inside of said exhaust side is provided with second cooling chamber, and the aperture of said second intake tunnel is not more than the aperture of said first intake tunnel;
The top of said cylinder head is provided with the exhalant canal that is connected with said first cooling chamber and second cooling chamber.
Preferably, in the above-mentioned cylinder head, the water outlet of said exhalant canal is positioned at the side of said exhaust side.
Preferably, above-mentioned cylinder head, its base is provided with seven and goes up the water hole, and said upward water hole all is positioned at the periphery of the suction valve cone and the exhaust valve seat of said cylinder head.
Preferably, in the above-mentioned cylinder head, the aperture of said second intake tunnel is less than the aperture of said first intake tunnel; The aperture of said water saving holes is less than said aperture of going up the water hole.
Preferably, in the above-mentioned cylinder head, the holding down bolt of outlet pipe of exhaust side that is used for fixing said cylinder head is respectively near the top and the bottom of said cylinder head, and said holding down bolt lays respectively at the both sides of symmetrical line of the relief opening of said cylinder head.
Based on the above-mentioned cylinder head that provides, the utility model also provides a kind of diesel engine, and it has an above-mentioned described cylinder head.
The cylinder head that the utility model provides; The bottom in its bridge of the nose district and the bottom of exhaust side are respectively equipped with first intake tunnel and second intake tunnel; The base of this cylinder head is provided with last water hole and the water saving holes that is connected with first intake tunnel and second intake tunnel respectively; The inside of bridge of the nose district and exhaust side is respectively equipped with first cooling chamber and second cooling chamber; And the two is connected with last water hole and water saving holes respectively, and the top of this cylinder head is provided with the exhalant canal that is connected with first cooling chamber and second cooling chamber.Above-mentioned cylinder head makes cooling water get into bridge of the nose district and exhaust side respectively from the bottom of this cylinder head, collects in exhalant canal behind flow through first cooling chamber and second cooling chamber, discharges cylinder head by the exhalant canal that is positioned at the cylinder head top.Compared with prior art; In the cylinder head that the utility model provides; Cooling water is discharged from the top of cylinder head, makes that the gas in the cooling water is prone to discharge cylinder head, has avoided the gas in the water to accumulate in the top of cylinder head; Finally improved cooling effect, and then improved cooling effect cylinder head to the bridge of the nose district of cylinder head.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the utility model, 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 cylinder head that Fig. 1 provides for existing technology;
Fig. 2 is that the A of Fig. 1 is to structural representation;
Fig. 3 is that the C-C of Fig. 2 is to sectional view;
Fig. 4 is that the B of Fig. 1 is to structural representation;
The structural representation of the cylinder head that Fig. 5 provides for the utility model embodiment;
Fig. 6 is that the D of Fig. 5 is to structural representation;
Fig. 7 is that the F-F of Fig. 6 is to sectional view;
Fig. 8 is that the E of Fig. 5 is to structural representation.
Among last Fig. 1-8:
Embodiment
The utility model provides a kind of cylinder head, has improved the cooling effect to the bridge of the nose district of cylinder head, and then has improved the cooling effect to cylinder head.
To combine the accompanying drawing among the utility model embodiment below, the technological scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, 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 utility model protection.
Please refer to accompanying drawing 5-8, the structural representation of the cylinder head that Fig. 5 provides for the utility model embodiment; Fig. 6 is that the D of Fig. 5 is to structural representation; Fig. 7 is that the F-F of Fig. 6 is to sectional view; Fig. 8 is that the E of Fig. 5 is to structural representation.
The cylinder head that the utility model embodiment provides; The bottom in its bridge of the nose district is provided with first intake tunnel 29; The base of cylinder head is provided with the some water holes 22 of going up that are connected with first intake tunnel 29, and the set inside of cylinder head has first cooling chamber that is connected with last water hole 22; The bottom of the exhaust side of cylinder head is provided with second intake tunnel 210; The base of cylinder head is provided with the water saving holes 21 that is connected with second intake tunnel 210; Exhaust side inside is provided with second cooling chamber, and the aperture of second intake tunnel 210 is not more than the aperture of first intake tunnel 29; The top of cylinder head is provided with the exhalant canal 26 that is connected with first cooling chamber and second cooling chamber.
The cylinder head that the foregoing description provides makes cooling water get into bridge of the nose district and exhaust side respectively from the bottom of this cylinder head, collects in exhalant canal 26 behind flow through first cooling chamber and second cooling chamber, discharges cylinder head by the exhalant canal that is positioned at the cylinder head top 26.Compared with prior art; In the cylinder head that the utility model provides; Cooling water is discharged from the top of cylinder head, makes that the gas in the cooling water is prone to discharge cylinder head, has avoided the gas in the water to accumulate in the top of cylinder head; Finally improved cooling effect, and then improved cooling effect cylinder head to the bridge of the nose district of cylinder head.
In the cylinder head that the foregoing description provides, cooling water gets into second cooling chamber of exhaust side, can also cool off oilhole, has improved the cooling effect of cooling water to cylinder head.
In the cylinder head that the foregoing description provides, can pass through the size ratio in the aperture of control first intake tunnel 29 and second intake tunnel 210, distribute the water yield that gets into first cooling chamber and second cooling chamber.
The cylinder head that the foregoing description provides; The cooling chamber of this cylinder head is a double layer construction; Be divided into cooling chamber 27 and following cooling chamber 28; Be provided with string water hole 24 between last cooling chamber 27 and the following cooling chamber 28, realized that cooling water gets into the last cooling chamber 27 of first cooling chamber from the following cooling chamber 28 of first cooling chamber.
For the ease of the gas in the cooling water is discharged cylinder head, in the cylinder head that the foregoing description provides, the water outlet 211 of exhalant canal 26 is positioned at the side of exhaust side.The water outlet 211 of exhalant canal 26 is located at the side of exhaust side; Because exhalant canal 26 is the top of cylinder head; Cooling water inflow in first cooling chamber is not less than the cooling water inflow in second cooling chamber; Cooling water is easy to flow to exhaust side so, and gas also is prone to flow to exhaust side, helps gas stream more and goes out cylinder head.
Preferably, the cylinder head that the foregoing description provides, its base is provided with seven and goes up water hole 22, and last water hole 22 all is positioned at the periphery of the suction valve cone 23 and the exhaust valve seat 25 of cylinder head.Increased the quantity in last water hole 22, accelerated cooling water and flowed into first cooling chamber, and then improved cooling effect, finally improved cooling effect cylinder head to bridge of the nose district.
Because bridge of the nose district is the most serious zone that is heated; Exhaust side is heated less relatively; In order further to improve the cooling effect of cooling water to cylinder head and its bridge of the nose district, in the cylinder head that the foregoing description provides, the aperture of second intake tunnel 210 is less than the aperture of first intake tunnel 29; The aperture of water saving holes 21 is less than the aperture in last water hole 22.Different through first intake tunnel 29 with the pore size of second intake tunnel 210, water saving holes 21 is different with the pore size in last water hole 22; Regulate the cooling water inflow that flows into first cooling chamber and second cooling chamber, and then regulate the cooling effect of cooling water exhaust side and bridge of the nose district.
In order further to optimize technique scheme; In the cylinder head that the foregoing description provides; The holding down bolt 213 of outlet pipe of exhaust side that is used for fixing cylinder head is respectively near the top and the bottom of cylinder head, and holding down bolt 213 lays respectively at the both sides of symmetrical line of the relief opening 212 of cylinder head.Holding down bolt is intercross arrangement about in the of 213; When the outlet pipe expanded by heating, it is big that the external diameter of pipe of outlet pipe becomes, and is positioned at the active force that the holding down bolt 213 in the outlet pipe outside receives so and increases; Be the active force increase between holding down bolt 213 and the outlet pipe, make that fixing of outlet pipe is more stable.
Based on the cylinder head that the foregoing description provides, the utility model embodiment also provides a kind of diesel engine, and it has any one cylinder head that the foregoing description provides.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model 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 (6)
1. cylinder head; The bottom in the bridge of the nose district of said cylinder head is provided with first intake tunnel (29); The base of said cylinder head is provided with the some water holes (22) of going up that are connected with said first intake tunnel (29), and the set inside of said cylinder head has first cooling chamber that is connected with said upward water hole (22); It is characterized in that,
The bottom of the exhaust side of said cylinder head is provided with second intake tunnel (210); The base of said cylinder head is provided with the water saving holes (21) that is connected with said second intake tunnel (210); The inside of said exhaust side is provided with second cooling chamber, and the aperture of said second intake tunnel (210) is not more than the aperture of said first intake tunnel (29);
The top of said cylinder head is provided with the exhalant canal (26) that is connected with said first cooling chamber and second cooling chamber.
2. cylinder head according to claim 1 is characterized in that, the water outlet (211) of said exhalant canal (26) is positioned at the side of said exhaust side.
3. cylinder head according to claim 1 is characterized in that, its base is provided with seven and goes up water hole (22), and said upward water hole (22) all is positioned at the periphery of the suction valve cone (23) and the exhaust valve seat (25) of said cylinder head.
4. cylinder head according to claim 1 is characterized in that, the aperture of said second intake tunnel (210) is less than the aperture of said first intake tunnel (29); The aperture of said water saving holes (21) is less than said aperture of going up water hole (22).
5. according to any described cylinder head among the claim 1-4; It is characterized in that; The holding down bolt (213) of outlet pipe of exhaust side that is used for fixing said cylinder head is respectively near said cylinder head top and bottom, and said holding down bolt (213) lays respectively at the both sides of symmetrical line of the relief opening (212) of said cylinder head.
6. a diesel engine is characterized in that, it has any described cylinder head among the aforesaid right 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205338321U CN202370682U (en) | 2011-12-19 | 2011-12-19 | Diesel engine and air cylinder cover of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205338321U CN202370682U (en) | 2011-12-19 | 2011-12-19 | Diesel engine and air cylinder cover of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370682U true CN202370682U (en) | 2012-08-08 |
Family
ID=46594388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205338321U Withdrawn - After Issue CN202370682U (en) | 2011-12-19 | 2011-12-19 | Diesel engine and air cylinder cover of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370682U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392751A (en) * | 2011-12-19 | 2012-03-28 | 潍柴动力股份有限公司 | Diesel engine and cylinder cover thereof |
| CN113719376A (en) * | 2021-09-26 | 2021-11-30 | 一汽解放汽车有限公司 | Cylinder head, cylinder head cooling system, engine and cylinder head cooling method |
-
2011
- 2011-12-19 CN CN2011205338321U patent/CN202370682U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392751A (en) * | 2011-12-19 | 2012-03-28 | 潍柴动力股份有限公司 | Diesel engine and cylinder cover thereof |
| CN102392751B (en) * | 2011-12-19 | 2013-04-24 | 潍柴动力股份有限公司 | Diesel engine and cylinder cover thereof |
| CN113719376A (en) * | 2021-09-26 | 2021-11-30 | 一汽解放汽车有限公司 | Cylinder head, cylinder head cooling system, engine and cylinder head cooling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120808 Effective date of abandoning: 20130424 |
|
| RGAV | Abandon patent right to avoid regrant |