CN216008710U - Cylinder seal structure, engine and vehicle - Google Patents
Cylinder seal structure, engine and vehicle Download PDFInfo
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- CN216008710U CN216008710U CN202122502631.1U CN202122502631U CN216008710U CN 216008710 U CN216008710 U CN 216008710U CN 202122502631 U CN202122502631 U CN 202122502631U CN 216008710 U CN216008710 U CN 216008710U
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- 238000007789 sealing Methods 0.000 claims abstract description 127
- 239000000463 material Substances 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
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Abstract
The application provides a cylinder seal structure, engine and vehicle belongs to engine technical field. The cylinder seal structure includes: the cylinder body comprises a supporting part, and a first sealing surface is arranged on the supporting part; the cylinder sleeve is arranged in the cylinder body and comprises a supporting shoulder, a second sealing surface is arranged on the supporting shoulder, and the second sealing surface is in sealing fit with the first sealing surface for positioning; wherein the first sealing surface or the second sealing surface is an inclined surface. Through the technical scheme of this application, can both guarantee the sealed face pressure from the line seal to the face seal between the supporting part of cylinder body and the support shoulder of cylinder jacket, improve the sealing reliability, reduce and leak the risk, simple structure.
Description
Technical Field
The application belongs to the technical field of engines, and particularly relates to a cylinder sealing structure, an engine and a vehicle.
Background
At present, the sealing between a supporting shoulder of the cylinder sleeve and a cylinder hole of the cylinder body mainly adopts direct plane sealing and sealing ring sealing. Adopt direct plane seal reliability not good, adopt the sealing ring sealed, increase one sealing ring, the cost is increased, has additionally increased two sealed faces between sealing ring and the cylinder body cylinder cap, and the place of leaking increases, and the risk of leaking can the grow.
SUMMERY OF THE UTILITY MODEL
Embodiments according to the present application aim to ameliorate at least one of the technical problems of the prior art or the related art.
In view of the above, a first object of the present application is to provide a cylinder seal structure.
A second object of the present application is to provide an engine.
A third object of the present application is to provide a vehicle.
In order to achieve the above object, a first aspect of the present application provides a cylinder seal structure, including: the cylinder body comprises a supporting part, and a first sealing surface is arranged on the supporting part; the cylinder sleeve is arranged in the cylinder body and comprises a supporting shoulder, a second sealing surface is arranged on the supporting shoulder, and the second sealing surface is in sealing fit with the first sealing surface for positioning; wherein the first sealing surface or the second sealing surface is an inclined surface.
According to the application, cylinder seal structure who provides, including cylinder body and cylinder liner, the cylinder liner is located in the cylinder body, and the supporting part on the cylinder body supports each other with the support shoulder on the cylinder liner and leans on the cooperation location. The supporting part is provided with a first sealing surface, the supporting shoulder is provided with a second sealing surface, and the first sealing surface and the second sealing surface are matched to seal the cylinder body and the cylinder sleeve. Wherein, first sealed face or the second sealed face is the inclined plane, makes the sealed face pressure of can both guaranteeing from the line seal to the face seal between the support shoulder of cylinder jacket and the cylinder body, improves sealed reliability, reduces and leaks the risk. And the first sealing surface and the second sealing surface are in direct contact sealing, so that sealing ring components are reduced, materials are saved, sealing positions are reduced, and reliability is enhanced.
In addition, the technical scheme provided by the application can also have the following additional technical characteristics:
among the above-mentioned technical scheme, cylinder seal structure still includes: the cylinder cover is arranged on the cylinder sleeve; and the cylinder gasket is arranged between the cylinder cover and the cylinder sleeve and used for sealing the cylinder cover and the cylinder sleeve.
In this technical scheme, cylinder seal structure still includes cylinder head and cylinder gasket, and the cylinder head is located on the cylinder liner for compress tightly fixed cylinder jacket, and the cylinder gasket is located between cylinder head and the cylinder liner, is used for sealed cylinder head and cylinder liner.
Among the above-mentioned technical scheme, the cylinder jacket is close to the one side of cylinder gasket and is equipped with arch or recess.
In the technical scheme, one surface of the cylinder sleeve, which is close to the cylinder gasket, is provided with a bulge or a groove. The bulges or the grooves are arranged on the upper end surface of the cylinder sleeve, so that when the cylinder cover compresses the cylinder sleeve, the contact area between the upper end surface of the cylinder sleeve and a cylinder gasket can be reduced, the sealing surface pressure is increased, and the sealing reliability is improved.
In the above technical solution, the groove includes an annular groove.
In this technical scheme, can set up the annular groove in the cylinder jacket one side that is close to the cylinder gasket, make the up end of cylinder gasket and cylinder jacket reduce area of contact, and the increase sealing surface is pressed, and the reinforcing is to the sealed of the burning high-pressure gas in the cylinder, reinforcing engine reliability.
In the above technical scheme, the groove includes an annular chamfer.
In this technical scheme, can also set up annular chamfer in the cylinder jacket one side that is close to the cylinder gasket, make the up end of cylinder gasket and cylinder jacket reduce area of contact, and the increase sealing surface is pressed, and the reinforcing is to the sealed of the burning high-pressure gas in the cylinder, reinforcing engine reliability.
In the technical scheme, the distance from the bottom to the top of the annular groove is 0.04-0.01 mm.
In the technical scheme, the distance from the bottom to the top of the annular groove is 0.04-0.01 mm, the combination area of the cylinder gasket and the cylinder sleeve can be reduced under the condition that the cylinder cover is not influenced to compress and fix the cylinder sleeve, the pressure between the pressure wave of the cylinder gasket and the cylinder sleeve is increased, larger sealing surface pressure is provided, and the sealing reliability is enhanced.
In the technical scheme, the included angle between the inclined plane and the horizontal plane is 10 'to 20'.
In the technical scheme, the included angle between the inclined plane and the horizontal plane is 10 'to 20', so that the plane joint sealing is optimized to be line sealing, the sealing pressure is increased, the sealing performance is enhanced, the line sealing is gradually changed into surface sealing along with the increase of the service time, and the sealing pressure is kept in the design range from the line sealing to the surface sealing within the service life range of an engine.
According to a second aspect of the present application, there is provided an engine comprising: a housing; the cylinder seal structure according to any one of the first aspect of the present application is provided in the housing.
According to the engine provided by the application, the cylinder sealing structure comprises the shell and the cylinder sealing structure according to any one of the above first aspects of the application, so that the engine has all the beneficial effects of the cylinder sealing structure according to any one of the above first aspects of the application, and the description is omitted.
According to a third aspect of the present application, there is provided a vehicle including: a vehicle body; an engine according to any one of the second aspect of the present application is provided in a vehicle body.
According to the vehicle provided by the application, the vehicle comprises the vehicle body and the engine according to any one of the second aspects of the application, so that the vehicle has all the advantages of the engine according to any one of the second aspects of the application, and the details are not repeated.
Additional aspects and advantages of embodiments in accordance with the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments in accordance with the present application.
Drawings
FIG. 1 is a schematic illustration in partial cross-sectional configuration of a cylinder seal arrangement according to an embodiment provided herein;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a partial front view structural schematic of a cylinder seal structure according to one embodiment provided herein;
FIG. 4 is a block diagram schematic of an engine according to one embodiment provided herein;
FIG. 5 is a block diagram schematic of a vehicle according to one embodiment provided herein.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:
10: a cylinder sealing structure; 100: a cylinder body; 110: a cylinder liner; 120: a support portion; 130: a support shoulder; 140: an annular groove; 150: a first sealing surface; 160: a second sealing surface; 20: an engine; 200: a housing; 30: a vehicle; 300: a vehicle body.
Detailed Description
In order that the above objects, features and advantages of embodiments according to the present application may be more clearly understood, embodiments according to the present application will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that features of embodiments according to the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth to provide a thorough understanding of embodiments according to the present application, however, embodiments according to the present application may be practiced in other ways than those described herein, and therefore the scope of protection afforded by embodiments according to the present application is not limited by the specific embodiments disclosed below.
Some embodiments provided in accordance with the present application are described below with reference to fig. 1-5.
As shown in fig. 1 and 2, a cylinder sealing structure 10 according to an embodiment of the present application includes a cylinder block 100 and a cylinder liner 110. Specifically, the cylinder block 100 includes a support portion 120, and a first sealing surface 150 is provided on the support portion 120. The cylinder liner 110 is disposed in the cylinder block 100, the cylinder liner 110 including a support shoulder 130, the support shoulder 130 having a second sealing surface 160 disposed thereon. The second sealing surface 160 is positioned in sealing engagement with the first sealing surface 150. Wherein the first sealing surface 150 or the second sealing surface 160 is an inclined surface.
According to the present embodiment, the cylinder sealing structure 10 includes a cylinder block 100 and a cylinder liner 110, wherein the cylinder liner 110 is disposed in the cylinder block 100, and a support portion 120 on the cylinder block 100 and a support shoulder 130 on the cylinder liner 110 are positioned in an abutting fit. The support portion 120 is provided with a first sealing surface 150, the support shoulder 130 is provided with a second sealing surface 160, and the first sealing surface 150 and the second sealing surface 160 are matched to seal the cylinder block 100 and the cylinder sleeve 110. The first sealing surface 150 or the second sealing surface 160 is an inclined surface, so that the sealing surface pressure can be ensured from line sealing to surface sealing between the support shoulder 130 of the cylinder sleeve 110 and the cylinder body 100, the sealing reliability is improved, and the leakage risk is reduced. And the first sealing surface 150 and the second sealing surface 160 are in direct contact sealing, so that sealing ring components are reduced, materials are saved, sealing positions are reduced, and reliability is enhanced.
Wherein the first sealing surface 150 is located at the top of the support portion 120, the second sealing surface 160 is located at the bottom of the support shoulder 130, and the first sealing surface 150 and the second sealing surface 160 cooperate to achieve axial positioning of the cylinder liner 110.
In the above embodiment, the cylinder sealing structure 10 further includes a cylinder head and a cylinder gasket, the cylinder head is disposed on the cylinder liner 110 and is used for compressing and fixing the cylinder liner 110, and the cylinder gasket is disposed between the cylinder head and the cylinder liner 110 and is used for sealing the cylinder head and the cylinder liner 110.
In some embodiments, a surface of the cylinder liner 110 adjacent to the head gasket is provided with protrusions or with grooves. The bulges or the grooves are arranged on the upper end surface of the cylinder sleeve 110, so that when the cylinder cover compresses the cylinder sleeve 110, the contact area between the upper end surface of the cylinder sleeve 110 and a cylinder gasket can be reduced, the sealing surface pressure is increased, and the sealing reliability is improved.
As shown in fig. 3, in the above embodiment, an annular groove 140 may be formed on a surface of the cylinder liner 110 close to the head gasket, so that the contact area between the head gasket and the upper end surface of the cylinder liner 110 is reduced, the sealing surface pressure is increased, the sealing of the combustion high-pressure gas in the cylinder is enhanced, and the reliability of the engine 20 is enhanced. The distance from the bottom to the top of the annular groove 140 is 0.04 mm-0.01 mm, so that the combination area of the cylinder gasket and the cylinder sleeve 110 can be reduced, the pressure between the pressure wave of the cylinder gasket and the cylinder sleeve 110 can be increased, a larger sealing surface pressure can be provided, and the sealing reliability can be enhanced under the condition that the cylinder cover is not influenced to compress and fix the cylinder sleeve 110.
In other embodiments, an annular chamfer may be further disposed on a side of the cylinder liner 110 close to the cylinder head gasket, so that a contact area between the cylinder head gasket and the upper end surface of the cylinder liner 110 is reduced, a sealing surface pressure is increased, sealing of combustion high-pressure gas in the cylinder is enhanced, and reliability of the engine 20 is enhanced.
In the above embodiment, the included angle between the inclined plane and the horizontal plane is designed according to the vibration analysis of the cylinder liner 110 of the engine 20, the material abrasion speed is determined according to the material strength, and the service life of the engine 20 is combined, preferably, the included angle between the inclined plane and the horizontal plane is 10 'to 20', so that the plane joint sealing is optimized to be the line sealing, the sealing pressure is increased, the sealing performance is enhanced, the line sealing is gradually changed into the plane sealing along with the increase of the service time, and the sealing pressure is ensured to be kept within the design range from the line sealing to the plane sealing within the service life range of the engine 20.
As shown in fig. 4, an engine 20 according to an embodiment of the present application includes a housing 200 and the cylinder seal structure 10 according to any of the embodiments described above, and the cylinder seal structure 10 is provided in the housing 200.
According to the embodiment of the present application, the engine 20 is provided, which includes the housing 200 and the cylinder seal structure 10 according to any one of the embodiments described above, and thus has all the advantages of the cylinder seal structure 10 according to any one of the embodiments described above, and the description thereof is omitted. The cylinder sealing structure 10 is disposed in the housing 200, and is used to enhance the sealing of the cooling liquid between the outer wall of the cylinder liner 110 and the cylinder block 100, and enhance the reliability of the engine 20.
As shown in fig. 5, a vehicle 30 according to an embodiment of the present application includes a vehicle body 300 and an engine 20 according to any of the embodiments described above, and the engine 20 is provided in the vehicle body 300.
According to the embodiment of the present application, a vehicle 30 is provided, which includes a vehicle body 300 and the engine 20 according to any of the embodiments described above, so that the vehicle has all the advantages of the engine 20 according to any of the embodiments described above, and therefore, the description thereof is omitted.
As shown in fig. 1 to 3, a cylinder sealing structure 10 according to an embodiment of the present application includes a cylinder liner 110, a block 100, a cylinder head, and a cylinder head gasket. Through targeted analysis of vibration and material wear performance of the cylinder sleeve 110 by different models, the wear speed of the combined sealing surface of the support shoulder 130 of the cylinder sleeve 110 and the cylinder body 100 is determined, so that a proper conical surface sealing angle is selected, the sealing surface pressure can be ensured from line sealing to surface sealing between the support shoulder 130 and the cylinder body 100, the sealing reliability is improved, and the leakage risk is reduced.
As shown in fig. 1 and 2, the support shoulder 130 is combined with the first sealing surface 150 of the cylinder block 100 to form a sealing strip, and the upper end surface of the support shoulder 130 is combined with the cylinder head gasket to form a sealing strip, wherein the support shoulder 130 of the cylinder liner 110 increases the taper angle of 10 'to 20', so that the support shoulder 130 and the supporting surface of the cylinder block 100 can form a proper sealing surface pressure in the service life range of the diesel engine 20, the sealing of the cooling liquid between the outer wall of the cylinder liner 110 and the cylinder block 100 is enhanced, and the reliability of the engine 20 is enhanced.
As shown in fig. 3, an annular groove 140 of 0.04mm ± 0.01mm is added to the upper end surface of the cylinder liner 110, so that the contact area between the head gasket and the upper end surface of the cylinder liner 110 is reduced, the sealing surface pressure is increased, the sealing of the combustion high-pressure gas in the cylinder is enhanced, and the reliability of the engine 20 is enhanced. Wherein S1 is the angle between the inclined surface and the horizontal plane, and S2 is the distance from the bottom to the top of the annular groove 140.
In summary, the embodiment has the following beneficial effects:
1. the sealing reliability is enhanced by forming a conical surface seal by increasing the taper angle at the support shoulder 130 of the cylinder liner 110.
2. A method of determining the magnitude of the cone angle of the support shoulder 130 of the cylinder liner 110 on different engines 20 in conjunction with the life of the engine 20 by analyzing the cylinder liner 110 vibration strength and wear performance of the engine 20.
3. The method is characterized in that an annular groove 140 or an annular chamfer is added on the upper end surface of the cylinder sleeve 110, so that the contact area of the upper end surface of the cylinder sleeve 110 and a cylinder gasket is reduced, the surface pressure is increased, and the sealing performance is enhanced.
In embodiments according to the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. Specific meanings of the above terms in the embodiments according to the present application can be understood by those of ordinary skill in the art as the case may be.
In the description of the embodiments according to the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience of description and simplification of description of the embodiments according to the present application, and do not indicate or imply that the referred devices or units must have a specific direction, be configured and operated in a specific orientation, and thus, cannot be construed as limitations on the embodiments according to the present application.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example in accordance with the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are merely preferred embodiments according to the present application, and are not intended to limit the embodiments according to the present application, and those skilled in the art may make various modifications and variations to the embodiments according to the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the embodiments according to the present application shall be included in the protection scope of the embodiments according to the present application.
Claims (8)
1. A cylinder seal structure, comprising:
the cylinder body (100), the cylinder body (100) includes a supporting portion (120), and a first sealing surface (150) is arranged on the supporting portion (120);
the cylinder sleeve (110) is arranged in the cylinder body (100), the cylinder sleeve (110) comprises a supporting shoulder (130), a second sealing surface (160) is arranged on the supporting shoulder (130), and the second sealing surface (160) is positioned in a sealing fit with the first sealing surface (150);
wherein the first sealing surface (150) or the second sealing surface (160) is an inclined surface;
a cylinder head gasket;
one surface of the cylinder sleeve (110) close to the cylinder gasket is provided with a groove.
2. The cylinder seal structure according to claim 1, further comprising:
a cylinder head provided on the cylinder liner (110);
the cylinder gasket is arranged between the cylinder head and the cylinder sleeve (110) and used for sealing the cylinder head and the cylinder sleeve (110).
3. The cylinder seal structure according to claim 2,
the groove comprises an annular groove (140).
4. The cylinder seal structure according to claim 2,
the groove includes an annular chamfer.
5. The cylinder seal structure according to claim 3,
the distance from the bottom to the top of the annular groove (140) is 0.04 mm-0.01 mm.
6. Cylinder seal structure according to any one of claims 1 to 5,
the inclined plane and the horizontal plane form an included angle of 10 'to 20'.
7. An engine, comprising:
a housing (200);
the cylinder seal structure according to any one of claims 1 to 6, provided in the housing (200).
8. A vehicle, characterized by comprising:
a vehicle body (300);
the engine of claim 7, disposed within the vehicle body (300).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122502631.1U CN216008710U (en) | 2021-10-18 | 2021-10-18 | Cylinder seal structure, engine and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122502631.1U CN216008710U (en) | 2021-10-18 | 2021-10-18 | Cylinder seal structure, engine and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216008710U true CN216008710U (en) | 2022-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122502631.1U Active CN216008710U (en) | 2021-10-18 | 2021-10-18 | Cylinder seal structure, engine and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216008710U (en) |
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2021
- 2021-10-18 CN CN202122502631.1U patent/CN216008710U/en active Active
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