CN208153177U - A kind of engine cylinder cap - Google Patents
A kind of engine cylinder cap Download PDFInfo
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- CN208153177U CN208153177U CN201820457561.8U CN201820457561U CN208153177U CN 208153177 U CN208153177 U CN 208153177U CN 201820457561 U CN201820457561 U CN 201820457561U CN 208153177 U CN208153177 U CN 208153177U
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- cylinder
- groove
- engine
- cylinder head
- holes
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Abstract
The utility model relates to technical field of engines, disclose a kind of engine cylinder cap.The engine cylinder cap includes the groove that predetermined depth is provided in the cylinder head of engine, the groove is located at the cylinder and covers the side contacted with piston cylinder, filled with heat insulating coat in the groove, in the region that the outermost side profile that the projection of the cylinder holes of the piston cylinder is fully located at the groove surrounds.Solving engine in the prior art in the utility model, during the work time, cylinder head is because temperature is excessively high, easily cracked problem, while also solving the problems, such as big for cooling water channel design complexity, design difficulty in cylinder head.
Description
Technical field
The utility model relates to technical field of engines more particularly to a kind of engine cylinder caps.
Background technique
Cylinder head is the indispensable important spare part of engine, with the continuous promotion of engine power, to engine
Cylinder head proposes increasingly higher demands.In order to guarantee the reliability and service life of cylinder head work, need to reduce piston
The thermic load of cylinder head during cylinder working.
During cylinder operation, indoor temperature of burning is excessively high, and it is excessively high cracked to easily lead to cylinder head temperature, in order to
It avoids above situation from occurring, is by the way that water channel is arranged in cylinder head, in piston cylinder working, to cooling water channel in the prior art
It is inside passed through cooling water to cool down cylinder head, in such cases, because the temperature of cylinder head is higher, it is desirable to make the temperature of cylinder head
It is reduced to suitable temperature, needs just transfer heat away from, cylinder head is made to reach cooling the design comparison complexity of water channel
It is required that also therefore cause water channel design difficulty big, thus keep the manufacture difficulty of cylinder head big, high production cost.
Utility model content
The purpose of this utility model is to provide a kind of engine cylinder cap, for solve in the prior art engine in work
During work, cylinder head is because temperature is excessively high, easily cracked problem, while also solving in cylinder head for cooling water channel
The problem that design is complicated, design difficulty is big.
For this purpose, the utility model uses following technical scheme：
A kind of engine cylinder cap is provided, the groove including being provided with predetermined depth in the cylinder head of engine is described
Groove is located at the cylinder and covers the side contacted with piston cylinder, is filled with heat insulating coat, the work in the groove
In the region that the outermost side profile that the projection of the cylinder holes of plug cylinder is fully located at the groove surrounds.
Preferably, multiple grooves are provided in the cylinder head, each groove corresponds to the cylinder holes of a piston cylinder, often
In the region that the outermost side profile that the cylinder holes of a piston cylinder is respectively positioned on the corresponding groove surrounds.
Preferably, a groove is provided in the cylinder head, the projection of the cylinder holes of the piston cylinder is fully located at institute
It states in the region that the outermost side profile of groove surrounds.
Preferably, the groove is annular.
Preferably, the heat insulating coat is equal to the depth of the groove along the height in the depth of groove direction.
Preferably, the groove is circle, and the maximum gauge of the groove is not less than the diameter of the cylinder holes.
Preferably, the minimum diameter of the groove is equal to the diameter of the cylinder holes.
Preferably, the center of the groove is overlapped with the center of the cylinder holes.
Preferably, the groove is rectangle, and the minimum side length of the outermost side profile of the rectangle is not less than the cylinder holes
Diameter.
Preferably, the minimum side length of the outermost side profile of the rectangle is equal to the diameter of the cylinder holes.
The beneficial effects of the utility model：
By the way that groove is arranged in cylinder head in the utility model, and the stuffed heat insulated coating in groove, it can prevent to fire
The most heat transfer burnt is to cylinder head, and the processing technology of this scheme groove is simple and convenient to operate, processing cost is low, and
Exploitativeness is strong.
On the one hand, cylinder head surface temperature can be reduced through the above way, avoids cracking, and improve cylinder head work
Reliability and service life.On the other hand, setting heat insulating coat can prevent cylinder head bottom surface coolant liquid from taking away heat more, mention
The high complete machine thermal efficiency.
By the way that heat insulating coat is arranged, the heat for being transferred to cylinder head is reduced, therefore, decreases and needs in cylinder head
The heat that water channel radiates can reduce cylinder head water channel design difficulty.
Detailed description of the invention
Fig. 1 is the partial structure diagram of the engine cylinder cap of the utility model；
Fig. 2 is a kind of simple structure schematic diagram of the engine cylinder cap of the utility model；
Fig. 3 is another simple structure schematic diagram of the engine cylinder cap of the utility model.
In figure：
1, cylinder head；10, groove.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
Embodiment one
As shown in Figure 1, a kind of engine cylinder cap is provided in the present embodiment, including setting in the cylinder head 1 of engine
It is equipped with the groove 10 of predetermined depth, groove 10 is located at cylinder and covers the side contacted with piston cylinder (not shown),
Heat insulating coat (not shown) is filled in groove 10, the projection of the cylinder holes of piston cylinder is fully located at the outermost side profile of groove 10
In the region surrounded.
Preferred technical solution is that multiple grooves 10 are provided in cylinder head 1, the corresponding piston cylinder of each groove 10
Cylinder holes, in the region that the outermost side profile that the cylinder holes of each piston cylinder is respectively positioned on corresponding groove surrounds.It is corresponding in cylinder head 1
Position between two adjacent cylinder holes is provided with screw hole, when in order to avoid cylinder head 1 and fixed piston cylinder body, groove 10
Location conflicts are generated with screw hole, therefore a groove 10 is separately provided in the position of corresponding each cylinder holes.
In further preferred technical solution, above-mentioned groove is annular, and heat insulating coat is evenly applied to groove 10, above-mentioned
The thickness of heat insulating coat is thicker, and heat insulation is better, and heat insulating coat is equal to the depth of groove 10 along the height of 10 depth direction of groove
After degree, i.e. heat insulating coat fill full groove 10, the plane of formation and the lower surface of cylinder head are concordant.It is formed in cylinder head in this way
Annular heat layer, it is ensured that the major part of gas in-cylinder combustion is blocked in the space that annular heat layer and cylinder are formed, to
The heat of cylinder head transmitting greatly reduces.Meanwhile can also guarantee that original 1 structure size of cylinder head does not change, original
Machining production line on the basis of, it is only necessary to again in cylinder head 1 10 structure of groove carry out subsequent mechanical processing, be processed into
This is not significantly improved, and cylinder head 1 also can satisfy requirement.
It is circle that further specific technical solution, which is groove 10, usually selects the maximum gauge of above-mentioned groove 10 not small
In the diameter of cylinder holes.As long as the outermost side profile for making each cylinder holes be all located at corresponding circular groove 10 surrounds the range in region
It is interior, it can to realize the effect that the temperature of cylinder head 1 is reduced to the heat-insulated of cylinder head 1.
Preferably, the center of above-mentioned groove 10 is overlapped with the center of cylinder holes, and the maximum gauge of groove 10 is equal to the straight of cylinder holes
Diameter.In this way in actual processing, the position of groove 10 is easy positioning and processing, and in the heat-proof quality demand for meeting cylinder head 1
While, the volume of groove 10 is smaller, and the material for the heat insulating coat for needing to coat is fewer, and production cost is lower.
The processing technology of engine cylinder cap in the present embodiment is convenient, and easy to operate and exploitativeness is strong, in cylinder head 1
Bottom recesses in stuffed heat insulated coating, most of heat transfer of burning can be prevented to cylinder head 1.
On the one hand 1 surface temperature of cylinder head can be significantly reduced, cylinder head 1 is avoided to crack, improve cylinder head 1
Functional reliability and service life.On the other hand the heat that setting heat insulating coat can prevent 1 bottom surface coolant liquid of cylinder head from taking away more
Amount improves the complete machine thermal efficiency.
By the way that heat insulating coat is arranged, the heat for being transferred to cylinder head 1 is reduced, therefore, decreases and needs in cylinder head
The heat that radiates of water channel, accordingly it is also possible to reduce by 1 water channel design difficulty of cylinder head.
Embodiment two
As shown in Fig. 2, the engine cylinder cap provided in the present embodiment, unlike above-described embodiment one, above-mentioned
A groove 10 is opened up in cylinder head 1, the projection (dotted line position in such as Fig. 2) of the cylinder holes of piston cylinder is fully located at groove 10
It is interior.The shape of above-mentioned groove 10 can be rectangle, and the size of groove 10 is determined according to the actual needs, open up groove 10
Afterwards, the rigidity of cylinder head 1, intensity meet requirement, and do not install with other component and generate interference.
Embodiment three
As shown in figure 3, the engine cylinder cap provided in the present embodiment, identical with above-described embodiment one to be, in cylinder
It is provided with groove 10 in the corresponding position of each cylinder holes (dotted line position in such as Fig. 3) on lid 1, it is different from above-described embodiment one
, the shape of each groove 10 can also be rectangle, and the minimum side length of the outermost side profile of rectangle is not less than the diameter of cylinder holes.
Above-mentioned rectangle is square or rectangle, is determined with specific reference to actual needs.Preferably, the outermost side profile of rectangle
Minimum side length is equal to the diameter of cylinder holes, and the thickness of above-mentioned heat insulating coat is identical as the depth of groove 10.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (10)
1. a kind of engine cylinder cap, which is characterized in that including being provided with the recessed of predetermined depth on the cylinder head of engine (1)
Slot (10), the groove (10) are located at the side contacted on the engine cylinder cap (1) with piston cylinder, and the groove (10) is interior
Filled with heat insulating coat, the projection of the cylinder holes of the piston cylinder is fully located at the area that the outermost side profile of the groove (10) surrounds
In domain.
2. engine cylinder cap according to claim 1, which is characterized in that be provided on the cylinder head (1) multiple recessed
Slot (10), the cylinder holes of the corresponding piston cylinder of each groove (10), the cylinder holes of each piston cylinder is respectively positioned on corresponding
In the region that the outermost side profile of the groove (10) surrounds.
3. engine cylinder cap according to claim 1, which is characterized in that be provided on the cylinder head (1) one it is recessed
Slot (10), in the region that the outermost side profile that the projection of the cylinder holes of the piston cylinder is fully located at the groove (10) surrounds.
4. engine cylinder cap according to claim 1, which is characterized in that the groove (10) is annular.
5. engine cylinder cap according to claim 1, which is characterized in that the heat insulating coat is deep along the groove (10)
The height for spending direction is equal to the depth of the groove (10).
6. engine cylinder cap according to claim 2, which is characterized in that the groove (10) is circle, the groove
(10) maximum gauge is not less than the diameter of the cylinder holes.
7. engine cylinder cap according to claim 6, which is characterized in that the maximum gauge of the groove (10) is equal to institute
State the diameter of cylinder holes.
8. engine cylinder cap according to claim 7, which is characterized in that the center of the groove (10) and the cylinder holes
Center be overlapped.
9. engine cylinder cap according to claim 2, which is characterized in that the groove (10) is rectangle, the rectangle
Outermost side profile minimum side length be not less than the cylinder holes diameter.
10. engine cylinder cap according to claim 9, which is characterized in that the minimum of the outermost side profile of the rectangle
Side length is equal to the diameter of the cylinder holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820457561.8U CN208153177U (en) | 2018-03-30 | 2018-03-30 | A kind of engine cylinder cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820457561.8U CN208153177U (en) | 2018-03-30 | 2018-03-30 | A kind of engine cylinder cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208153177U true CN208153177U (en) | 2018-11-27 |
Family
ID=64380018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820457561.8U Active CN208153177U (en) | 2018-03-30 | 2018-03-30 | A kind of engine cylinder cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208153177U (en) |
-
2018
- 2018-03-30 CN CN201820457561.8U patent/CN208153177U/en active Active
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