CN203614254U - Cylinder cover - Google Patents
Cylinder cover Download PDFInfo
- Publication number
- CN203614254U CN203614254U CN201320790163.5U CN201320790163U CN203614254U CN 203614254 U CN203614254 U CN 203614254U CN 201320790163 U CN201320790163 U CN 201320790163U CN 203614254 U CN203614254 U CN 203614254U
- Authority
- CN
- China
- Prior art keywords
- water cavity
- cylinder head
- water
- head body
- cylinder cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 88
- 238000005553 drilling Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 14
- 239000000110 cooling liquid Substances 0.000 abstract description 7
- 238000005728 strengthening Methods 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 abstract 4
- 239000000498 cooling water Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Abstract
The utility model discloses a cylinder cover comprising a cylinder cover body, wherein a water cavity is arranged in the cylinder cover body, a separator is arranged in the water cavity so as to divide the water cavity into an upper water cavity and a lower water cavity, a through hole, which is greater than a fuel injector bush in diameter, is mounted on the separator in a position corresponding to the fuel injector bush so that the upper water cavity is communicated with the lower water cavity, a water inlet which is communicated with a water escape hole formed at the upper side of a cylinder body is formed in the bottom of the cylinder cover body, a water inlet channel is arranged in the cylinder cover body so that the upper water cavity is communicated with the water inlet, and a water return opening is formed in the bottom of the the cylinder cover body in a position corresponding to the lower water cavity. A cooling liquid in a cooling system is fed from the bottom and discharged behind; in other words, the cooling liquid enters the upper water cavity through a water conduit at firstly, and is converged through the horn mouth structure of the separator and then flows through the four sides of the fuel injector bush to cool the water cavity in a nose bridge region, and finally flows out of the water return opening of the lower water cavity. The cylinder cover is capable of increasing the water flow velocity around the fuel injector bush and in the water cavity of the nose bridge region, strengthening the cooling effect, and thus finally meeting the cooling requirements of the cylinder cover.
Description
Technical field
The utility model relates to a kind of cylinder head.
Background technique
As shown in Figure 1, existing diesel cylinder head generally comprises upper water cavity and lower water cavity setting up and down and that be communicated with, the water intake of lower water cavity is communicated with the string water hole of body upside, cooling structure form is the lower water cavity that cooling water enters cylinder head from flow out in the string water hole of body upside, behind the cylinder head of flowing through ridge area (being the region between adjacent valve), gather to the hole of oil sprayer bushing surrounding, then flow into the upper water cavity of cylinder head, behind coolant exhaust road by water outlet effluent gases cylinder cap.Existing this structure is because cooling water flows from bottom to top, and the flow velocity of cooling water is relatively low, and in the time that diesel engine strengthening degree is higher, cooling effectiveness relatively can be weaker, especially oil sprayer bushing surrounding.
Summary of the invention
The technical problems to be solved in the utility model is to provide the cylinder head that a kind of cooling effectiveness is good.
For solving the problems of the technologies described above, the utility model comprises cylinder head body, in cylinder head body, be provided with water cavity, in water cavity, be provided with the dividing plate that is divided into upper water cavity and lower water cavity, thereby the corresponding oil sprayer bushing of described dividing plate installation place is provided with the through hole that diameter is greater than oil sprayer bushing to be communicated with upper water cavity with lower water cavity, it is characterized in that described cylinder head body bottom is provided with the water intake for being communicated with the string water hole of body upside, in cylinder head body, be provided with intake tunnel upper water cavity is communicated with water intake, the corresponding lower water cavity in described cylinder head body bottom is provided with backwater mouth.
Described dividing plate is bell mouth shape, and its internal diameter from top to bottom reduces gradually.
Described intake tunnel passes through in the internal drilling of cylinder head body, and in hole, is pressed into aqueduct formation, and the underpart of described aqueduct is concordant with the bottom surface of cylinder head body, and upper water cavity is stretched in the upper end portion of described aqueduct.
Described water intake and backwater mouth are arranged on the opposite side of cylinder head body, and described water intake is positioned at the air inlet side of cylinder head body, and backwater mouth is positioned at the exhaust side of cylinder head body.
Under described aqueduct correspondence, water cavity is provided with the vent hole that lower water cavity is communicated with aqueduct.
Described vent hole is two, and it is symmetrical arranged on aqueduct.
Adopt after said structure, cooling liquid in the utility model cooling system is taked first up and then down mode, be that cooling liquid is introduced into upper water cavity by aqueduct, then via the bell-mouth structure of air of dividing plate, gather and flow through after oil sprayer bushing surrounding, cooling ridge area water cavity, finally flows out from the backwater mouth of lower water cavity.The utility model can strengthen oil sprayer bushing around and the water velocity of ridge area water cavity, strengthens cooling effect, thereby finally meets the cooling requirement of cylinder head.
Accompanying drawing explanation
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail:
Fig. 1 is the structural representation of prior art;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the worm's eye view of Fig. 1.
Embodiment
As shown in Figures 2 and 3, cylinder head comprises cylinder head body 3, in cylinder head body 3, be provided with water cavity, in water cavity, be provided with the dividing plate 9 that is divided into upper water cavity 7 and lower water cavity 8, thereby the corresponding oil sprayer bushing of dividing plate 91 installation place is provided with the through hole that diameter is greater than oil sprayer bushing 1 to be communicated with upper water cavity 7 with lower water cavity 8, under cylinder head body 3 bottom correspondences, water cavity 8 is provided with backwater mouth 5.Cylinder head body 3 bottoms are provided with the water intake 6 for being communicated with the string water hole of body upside, in cylinder head body 3, being provided with intake tunnel is communicated with upper water cavity 7 with water intake 6, the utility model intake tunnel passes through in 3 internal drillings of cylinder head body, and in hole, be pressed into aqueduct 2 and form, can reduce like this casting difficulty of cylinder head body 3, reduce manufacture cost, in the present embodiment, the underpart of aqueduct 2 is concordant with the bottom surface of cylinder head body 3, and upper water cavity 7 concordant with the upper plane of the dividing plate 9 of corresponding part is stretched in the upper end portion of aqueduct 2.The corresponding lower water cavity 8 of aqueduct 2 is provided with the vent hole 4 that lower water cavity 8 is communicated with aqueduct 2, and in the present embodiment, vent hole 4 is two, and it is symmetrical arranged on aqueduct 2, the convenient processing of aqueduct of this kind of structure, and in the utility model, vent hole 4 also can be multiple.Because cooling system of the present utility model adopts first up and then down mode, current can be pressed into the gas in upper water cavity 7 lower water cavity 8, by vent hole 4 is set, gas in lower water cavity 8 can be entered aqueduct 2 and then be entered upper water cavity 7 by vent hole 4, and last relief opening from cylinder head body 3 is discharged.
The utility model central diaphragm 9 is bell mouth shape, and its internal diameter from top to bottom reduces gradually, and dividing plate 9 from top to bottom, shrink to through hole gradually by the middle of all side direction, makes dividing plate 9 form bell mouth shape.The cooling liquid in upper water cavity 7 is gathered oil sprayer bushing 1 surrounding of flowing through by the dividing plate 9 of this kind of structure, because dividing plate 9 internal diameters reduce gradually, can increase the flow velocity of cooling liquid, cooling liquid produces and washes away cylinder head ridge area from top to down, thereby strengthening cooling effect, and then the ridge area of better cooling air cylinder cap body 3.
For strengthening cooling effect, water intake 6 and backwater mouth 5 are arranged on to the opposite side of cylinder head body 3, water intake 6 is positioned at the air inlet side of cylinder head body 3, and backwater mouth 5 is positioned at the exhaust side of cylinder head body 3.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model.Previous embodiment has been described in detail the utility model, and for a person skilled in the art, its technological scheme that still can record aforementioned each embodiment is modified, or part technical characteristics is wherein equal to replacement.In every case within inventive concept scope of the present utility model, any modification of making, be equal to replacement, improvement etc., within being all included in protection domain of the present utility model.
Claims (6)
1. a cylinder head, comprise cylinder head body (3), cylinder head body is provided with water cavity in (3), in water cavity, be provided with the dividing plate (9) that is divided into upper water cavity (7) and lower water cavity (8), the corresponding oil sprayer bushing of described dividing plate (9) (1) installation place be provided with that diameter is greater than oil sprayer bushing (1) thus through hole upper water cavity (7) is communicated with lower water cavity (8), it is characterized in that described cylinder head body (3) bottom is provided with the water intake (6) for being communicated with the string water hole of body upside, in cylinder head body (3), being provided with intake tunnel is communicated with upper water cavity (7) with water intake (6), the corresponding lower water cavity (8) in described cylinder head body (3) bottom is provided with backwater mouth (5).
2. cylinder head according to claim 1, is characterized in that described dividing plate (9) is bell mouth shape, and its internal diameter from top to bottom reduces gradually.
3. cylinder head according to claim 2, it is characterized in that described intake tunnel passes through in cylinder head body (3) internal drilling, and in hole, be pressed into aqueduct (2) form, the underpart of described aqueduct (2) is concordant with the bottom surface of cylinder head body (3), and upper water cavity (7) is stretched in the upper end portion of described aqueduct (2).
4. cylinder head according to claim 3, it is characterized in that described water intake (6) and backwater mouth (5) are arranged on the opposite side of cylinder head body (3), described water intake (6) is positioned at the air inlet side of cylinder head body (3), and backwater mouth (5) is positioned at the exhaust side of cylinder head body (3).
5. cylinder head according to claim 4, is characterized in that the corresponding lower water cavity (8) of described aqueduct (2) is provided with the vent hole (4) that lower water cavity (8) is communicated with aqueduct (2).
6. cylinder head according to claim 5, is characterized in that described vent hole (4) is two, and it is symmetrical arranged on aqueduct (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320790163.5U CN203614254U (en) | 2013-12-05 | 2013-12-05 | Cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320790163.5U CN203614254U (en) | 2013-12-05 | 2013-12-05 | Cylinder cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614254U true CN203614254U (en) | 2014-05-28 |
Family
ID=50766905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320790163.5U Expired - Lifetime CN203614254U (en) | 2013-12-05 | 2013-12-05 | Cylinder cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614254U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9797351B2 (en) | 2015-07-06 | 2017-10-24 | Caterpillar Inc. | Ducted combustion systems utilizing duct cooling |
-
2013
- 2013-12-05 CN CN201320790163.5U patent/CN203614254U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9797351B2 (en) | 2015-07-06 | 2017-10-24 | Caterpillar Inc. | Ducted combustion systems utilizing duct cooling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |
|
| CX01 | Expiry of patent term |