CN110953087B - Sealing assembly and optical engine - Google Patents
Sealing assembly and optical engine Download PDFInfo
- Publication number
- CN110953087B CN110953087B CN201811131744.1A CN201811131744A CN110953087B CN 110953087 B CN110953087 B CN 110953087B CN 201811131744 A CN201811131744 A CN 201811131744A CN 110953087 B CN110953087 B CN 110953087B
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- Prior art keywords
- cylinder
- sealing
- sealing assembly
- cylinder cover
- sleeve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/002—Arrangements of sealings in combustion engines involving cylinder heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/005—Arrangements of sealings in combustion engines involving cylinder liners
Abstract
The invention provides a sealing assembly and an optical engine, wherein the sealing assembly comprises a cylinder sleeve with an opening and a cylinder cover covering the opening, and a sealing ring surrounding the opening is arranged between the cylinder sleeve and the cylinder cover; the sealing assembly further comprises a supporting component, the supporting component supports one end, deviating from the cylinder cover, of the cylinder sleeve, and the cylinder sleeve and the cylinder cover press the sealing ring towards each other when the supporting component is connected with the cylinder cover. The sealing assembly and the optical engine provided by the invention can solve the problems that in the prior art, when the cylinder sleeve and the cylinder cover cannot be directly fastened by a fastener to compress the sealing washer, the sealing washer and the sealing glue are difficult to disassemble, the sealing washer is easy to burn, the sealing glue is difficult to clean and the like in a mode of arranging the sealing washer and the sealing glue between the cylinder sleeve and the cylinder cover.
Description
Technical Field
The invention relates to a sealing technology of a structure, in particular to a sealing assembly and an optical engine.
Background
In the development process of engine products, a whole set of combustion system including a fuel injector, an air passage and a piston needs to be developed to ensure that fuel can be fully utilized and combusted in the working process, the development of the combustion system is the core of the development of gasoline engine products, an optical engine is an important development tool in the development of the combustion system of a modern engine, the optical engine usually adopts a transparent glass cylinder sleeve, the flowing, spraying and combustion conditions in the engine cylinder can be directly measured by an optical test means in the working process of the engine, and direct technical support is provided for the design and diagnosis of the combustion system.
In the optical engine, the transparent glass cylinder sleeve and the metal cylinder cover need to be sealed to ensure that enough high-temperature and high-pressure environment is formed in the piston compression process to realize ignition, the traditional engine cylinder sleeve and the cylinder cover are made of metal materials, a cylinder cover pad is adopted between the traditional engine cylinder sleeve and the cylinder cover, fastening bolts are adopted for fastening, but the optical engine is a glass cylinder sleeve, the traditional connection sealing mode cannot be adopted, and otherwise, glass is easy to break.
At present, the sealing of an optical cylinder sleeve and a cylinder cover of an optical engine usually adopts a mode of combining a sealing washer and coating a sealant, the sealing washer is sealed by adopting the mode, the sealing washer is required to have larger elasticity so as to ensure that the sealing is carried out by utilizing the elasticity of the sealing washer under smaller pressing force, the sealing washer covers the whole sealing surface, when the engine catches fire, the sealing washer is influenced by high-temperature combustion gas when being contacted with combustion gas in the cylinder, the sealing washer is easy to burn, combustion residues are formed in the cylinder, the residues can cause the clamping of a piston ring, so that the friction resistance between the piston ring and a glass cylinder sleeve is increased, the temperature of the piston ring and the glass cylinder sleeve is increased, and the piston ring is damaged or even the glass is damaged. In addition, the mode of smearing the sealant needs to take a long time to clean the sealant when the optical engine is disassembled, and the test efficiency is influenced.
Disclosure of Invention
In view of the above, the present invention is directed to a sealing assembly and an optical engine, so as to solve the problems that in the prior art, a sealing gasket is easily burnt and the sealant is difficult to clean in a manner of sealing between a cylinder sleeve and a cylinder cover of the optical engine by using the sealing gasket in combination with the sealant.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a sealing assembly, which comprises a cylinder sleeve with an opening and a cylinder cover covering the opening, wherein a sealing ring surrounding the opening is arranged between the cylinder sleeve and the cylinder cover;
the sealing assembly further comprises a supporting component, the supporting component supports one end, deviating from the cylinder cover, of the cylinder sleeve, and the cylinder sleeve and the cylinder cover press the sealing ring towards each other when the supporting component is connected with the cylinder cover.
Furthermore, the supporting component comprises a bottom plate supported at the bottom of the cylinder sleeve and at least two supporting columns connected with the bottom plate, and the supporting columns are connected with the cylinder cover.
Further, the support column is connected with the cylinder cover through a bolt.
Furthermore, the cylinder cover and the support column are respectively provided with positioning holes which correspond to each other and are used for positioning.
Further, an annular groove surrounding the opening is formed in the surface, facing the cylinder cover, of the cylinder sleeve or the surface, facing the cylinder sleeve, of the cylinder cover, and the sealing ring is arranged in the annular groove;
the sealing ring and the annular groove are arranged in a manner that the sealing ring protrudes out of the annular groove, so that a gap is formed between the cylinder cover and the cylinder sleeve when the cylinder cover and the cylinder sleeve tightly press the sealing ring.
Further, the width of the gap is 0.1 mm-0.2 mm.
Further, the annular groove is formed in the cylinder head.
Furthermore, at least two radially spaced sealing rings are arranged between the cylinder sleeve and the cylinder cover.
Further, the cylinder sleeve is made of glass, and the cylinder cover is made of metal.
The sealing assembly provided by the invention has a good sealing effect, can realize the sealing between the cylinder cover and the cylinder sleeve without directly arranging a connecting structure (such as a bolt hole) on the cylinder sleeve to damage the cylinder sleeve, and is simple to install and disassemble. Compared with the mode of arranging the sealing ring and the sealing glue between the cylinder sleeve and the cylinder cover in the prior art, the sealing assembly provided by the invention can be arranged on an optical engine, so that the problems that the cylinder sleeve and the cylinder cover are difficult to disassemble, the sealing glue is difficult to clean, the experimental efficiency is influenced, the sealing washer is easy to burn and the like can be solved.
Another object of the present invention is to provide an optical engine, wherein the engine includes the sealing assembly as described above, the cylinder liner of the sealing assembly is a cylinder liner of the optical engine, and the cylinder head of the sealing assembly is a cylinder head of the optical engine.
The advantages of the optical engine over the prior art are the same as those of the sealing assembly described above, and are not described in detail here.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a seal assembly according to one embodiment of the present invention;
FIG. 2 is a bottom view of a cylinder head in the seal assembly.
Description of reference numerals:
1-cylinder sleeve; 2-cylinder cover; 21-an annular groove; 22-bolt holes; 23-positioning holes; 3-a support member; 31-a base plate; 32-support column.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. The term "inside" and "outside" refer to the inside and the outside of the contour of each member itself.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
The invention provides a sealing assembly, which comprises a cylinder sleeve 1 with an opening and a cylinder cover 2 covering the opening, wherein a sealing ring surrounding the opening is arranged between the cylinder sleeve 1 and the cylinder cover 2; the sealing assembly further comprises a supporting component 3, the supporting component 3 is supported at one end, deviating from the cylinder cover 2, of the cylinder sleeve 1, and when the supporting component 3 is connected with the cylinder cover 2, the supporting component 3 applies force towards the cylinder cover 2 to the cylinder sleeve 1, so that the cylinder sleeve 1 and the cylinder cover 2 press the sealing ring towards each other, and sealing is achieved.
The sealing assembly provided by the invention can be used in the situation that the cylinder cover 2 cannot be fastened to the cylinder sleeve 1 to realize sealing between the cylinder cover and the cylinder sleeve 1, and the cylinder sleeve 1 and the cylinder cover 2 can be fastened together by means of the supporting component 3. For example, when the cylinder liner 1 is made of a brittle material such as glass or ceramic, holes cannot be formed in the cylinder liner 1, or the wall of the cylinder liner 1 is thin, and there is no hole-forming portion on the end surface facing the cylinder head 2, so that the cylinder head 2 cannot be directly fixed to the cylinder liner 1 by fasteners such as bolts. The sealing assembly is good in sealing effect, the cylinder sleeve is not required to be damaged by directly arranging a connecting structure (such as a bolt hole) on the cylinder sleeve 1, and the mounting and the dismounting are simple.
The sealing assembly provided by the invention can be arranged on the optical engine, and the sealing of the glass cylinder sleeve and the metal cylinder cover is realized through the supporting part 3.
The technical scheme provided by the invention is described in detail by taking a sealing assembly used on an optical engine as an example, wherein a cylinder sleeve 1 is made of glass materials, and a cylinder cover 2 is made of metal materials. Of course, the sealing assembly can be used for other structures that the cylinder sleeve cannot be directly fastened and sealed with the cylinder cover.
In the present embodiment, as shown in fig. 1, the support member 3 includes a bottom plate 31 supported at the bottom of the cylinder liner 1 and at least two support pillars 32 connected to the bottom plate 31, and the support pillars 32 are connected to the cylinder head 2.
Preferably, the supporting pillar 32 is connected to the cylinder head 2 by a bolt, although it is not excluded that the supporting pillar 32 is connected to the cylinder head 2 by other means, such as a snap connection.
Specifically, in the present embodiment, four support columns 32 are provided, the end surface of the cylinder head 2 facing the cylinder liner 1 is substantially a quadrangle, and bolt attachment portions provided with bolt holes 22 are formed at the four corners of the quadrangle so as to be fixed to the four support columns 32 by bolts.
Of course, the number of the support columns 32 may be two or three, and the end surface of the cylinder head 2 facing the cylinder liner 1 may be adjusted to have two or three bolt mounting portions corresponding to the positions of the support columns 32.
In addition, positioning holes 23 for positioning may be provided in the cylinder head 2 and the support columns 32, respectively, so as to correspond to each other. As shown in fig. 2, the cylinder head 2 is provided with positioning holes 23, and the support pillars are provided with positioning holes corresponding to the positioning holes 23 of the cylinder head 2. Firstly, a positioning pin penetrates through the positioning hole 23 to position the cylinder cover 2 on the supporting column 32, and then the bolt is screwed for fixing, so that the operation is convenient.
It should be understood that the structure of the support member 3 is not limited to the structure form in the present embodiment, and other structure forms that can support the bottom of the cylinder liner 1 or the side of other portions of the cylinder liner 1 away from the cylinder head 2 and can be connected to the cylinder head 2 may be used.
In the present embodiment, an annular groove 21 surrounding the opening is provided on a surface of the cylinder liner 1 facing the cylinder head 2 or on a surface of the cylinder head 2 facing the cylinder liner 1, and the seal ring is provided in the annular groove 21. That is, the annular groove 21 in which the seal ring is provided may be provided in the liner 1 or in the liner 2.
However, when the cylinder liner 1 is made of a brittle material such as glass, it is difficult to form the annular groove 21 in the cylinder liner 1, and therefore, it is preferable to provide the annular groove 21 in the cylinder head 2.
In order to avoid damage to the fragile glass cylinder liner 1 caused by contact between the cylinder cover 2 and the cylinder liner 1 when the cylinder cover 2 is fastened to the support member 3, it is preferable that the seal ring protrudes from the annular groove 21 so that a gap is formed between the cylinder liner 1 and the cylinder cover 2 when the cylinder cover 2 and the cylinder liner 1 are pressed against each other.
Specifically, during installation, the sealing ring is firstly embedded into the annular groove 21 of the cylinder cover 2 and has a part protruding out of the annular groove 21, and when the bolt fastening force of the cylinder cover 2 and the supporting component 3 is gradually increased, the sealing ring is extruded and radially extends, so that the cylinder sleeve 1 and the cylinder cover 2 cannot be in direct contact, a gap is formed between the cylinder cover and the cylinder cover, and the cylinder cover 2 can be prevented from applying pressure to the cylinder sleeve 1 when being fastened to damage the fragile cylinder sleeve 1.
Preferably, the gap is 0.1mm to 0.2 mm. With this clearance control in certain extent, can guarantee the leakproofness, when this seal assembly was used for optical engine simultaneously, the narrow gap can be so that flame goes out after getting into rapidly, avoids the burning loss of high temperature flame to the sealing washer.
In addition, in the present embodiment, in order to further increase the sealing performance, at least two of the seal rings are provided between the cylinder liner 1 and the cylinder head 2 at intervals in the radial direction.
As shown in fig. 2, two annular grooves 21 are provided on the surface of the cylinder head 2 facing the cylinder liner 1 at a radial interval.
According to another aspect of the present invention, there is also provided an optical engine, the engine comprising the sealing assembly as described above, the cylinder liner 1 of the sealing assembly being a cylinder liner of the optical engine, and the cylinder head 2 of the sealing assembly being a cylinder head of the optical engine.
The optical engine adopts the sealing assembly provided by the invention, and can solve the problems that in the prior art, the cylinder sleeve and the cylinder cover of the optical engine are easy to burn and the sealant is difficult to clean by adopting a sealing gasket and sealant sealing mode.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A sealing assembly is characterized by comprising a cylinder sleeve (1) with an opening and a cylinder cover (2) covering the opening, wherein a sealing ring surrounding the opening is arranged between the cylinder sleeve (1) and the cylinder cover (2);
the sealing assembly further comprises a supporting component (3), the supporting component (3) is supported at one end, away from the cylinder cover (2), of the cylinder sleeve (1), and the cylinder sleeve (1) and the cylinder cover (2) press the sealing ring towards each other when the supporting component (3) is connected with the cylinder cover (2);
an annular groove (21) surrounding the opening is arranged on the surface of the cylinder sleeve (1) facing the cylinder cover (2) or on the surface of the cylinder cover (2) facing the cylinder sleeve (1), and the sealing ring is arranged in the annular groove (21);
the sealing ring and the annular groove (21) are arranged in a manner that the sealing ring protrudes out of the annular groove (21) so that a gap is reserved between the cylinder sleeve (1) and the cylinder cover (2) when the cylinder cover (2) and the cylinder sleeve (1) tightly press the sealing ring.
2. The sealing assembly according to claim 1, characterized in that the support means (3) comprise a bottom plate (31) supported at the bottom of the cylinder liner (1) and at least two support pillars (32) connected to the bottom plate (31), the support pillars (32) being connected to the cylinder head (2).
3. The sealing assembly according to claim 2, characterized in that the supporting pillar (32) is bolted to the cylinder head (2).
4. The sealing assembly according to claim 3, characterized in that the cylinder head (2) and the supporting column (32) are respectively provided with positioning holes (23) corresponding to each other for positioning.
5. The seal assembly of claim 1, wherein the gap has a width of 0.1mm to 0.2 mm.
6. The sealing assembly according to claim 1, characterized in that said annular groove (21) is provided on said cylinder head (2).
7. A sealing assembly according to claim 1, characterized in that at least two radially spaced sealing rings are arranged between the cylinder liner (1) and the cylinder head (2).
8. The sealing assembly according to any one of claims 1 to 7, characterized in that the cylinder liner (1) is of glass material and the cylinder head (2) is of metal material.
9. An optical engine, characterized in that the engine comprises a sealing assembly according to any one of claims 1-8, the cylinder liner (1) of the sealing assembly being a cylinder liner of the optical engine, and the cylinder head (2) of the sealing assembly being a cylinder head of the optical engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811131744.1A CN110953087B (en) | 2018-09-27 | 2018-09-27 | Sealing assembly and optical engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811131744.1A CN110953087B (en) | 2018-09-27 | 2018-09-27 | Sealing assembly and optical engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110953087A CN110953087A (en) | 2020-04-03 |
| CN110953087B true CN110953087B (en) | 2021-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811131744.1A Active CN110953087B (en) | 2018-09-27 | 2018-09-27 | Sealing assembly and optical engine |
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| CN (1) | CN110953087B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS638834Y2 (en) * | 1981-01-20 | 1988-03-16 | ||
| CN201826972U (en) * | 2010-10-09 | 2011-05-11 | 奇瑞汽车股份有限公司 | Sealing device for transparent cylinder sleeve of optical engine |
| CN103291484B (en) * | 2013-06-21 | 2015-04-29 | 奇瑞汽车股份有限公司 | Cylinder cover assembly of optical engine and connecting method thereof |
| US9958358B2 (en) * | 2016-03-31 | 2018-05-01 | Caterpillar Inc. | Control system having seal damage counting |
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2018
- 2018-09-27 CN CN201811131744.1A patent/CN110953087B/en active Active
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| CN110953087A (en) | 2020-04-03 |
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