CN203670023U - Oil injector, diesel engine and sealing part for oil injector - Google Patents
Oil injector, diesel engine and sealing part for oil injector Download PDFInfo
- Publication number
- CN203670023U CN203670023U CN201320683285.4U CN201320683285U CN203670023U CN 203670023 U CN203670023 U CN 203670023U CN 201320683285 U CN201320683285 U CN 201320683285U CN 203670023 U CN203670023 U CN 203670023U
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- CN
- China
- Prior art keywords
- sealing
- oil sprayer
- hole
- oil injector
- sealing part
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 76
- 239000013013 elastic material Substances 0.000 claims abstract description 6
- 239000007769 metal material Substances 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 52
- 239000010687 lubricating oil Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
Images
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a sealing part for an oil injector. The sealing part is arranged in an installation hole of a cylinder head cover cap. The sealing part comprises a body portion made of elastic materials and a protruding portion made of elastic materials, wherein the body portion is provided with a through hole where the oil injector is inserted, and a protruding lip portion for sealing is arranged inside the through hole. The lip portion is arranged in a surrounding mode in the radial direction of the through hole. The protrusion portion is arranged at the side portion of the body portion in a surrounding mode, and the protrusion portion is internally provided with a skeleton portion made of metal materials. The utility model further relates to the oil injector provided with the sealing part, and a diesel engine provided with the oil injector. According to the sealing part used for the oil injector, the problem that lubricating oil and oil gas are easily leaked can be effectively solved, and the diesel engine provided with the sealing part for the oil injector can remarkably reduce oil consumption.
Description
Technical field
The utility model belongs to technical field of automobile engine, relates in particular to a kind of Sealing for oil sprayer, is provided with the oil sprayer of the seal and disposes the diesel engine of this oil sprayer.
Background technique
Domestic traditional in-cylinder direct injection diesel engine generally adopts the mode of end face seal to seal oil sprayer at present.As shown in Figure 1, be arranged between valve chamber cover 2 ' and cylinder cap 3 ' for the Sealing 1 ' of oil sprayer, when assembling, need insert in cylinder cap 3 ' through valve chamber cover 2 ' from top by oil sprayer 4 '.
The shortcoming of this end face seal mode is, first, the upper end face of cylinder cap has formed with valve chamber cover lower seal groove two seal faces that coordinate with Sealing, but owing to having certain assembly error between the top structure complexity of cylinder cap and cylinder cap and valve chamber cover, be difficult to guarantee the integrity of Sealing at the seal face of the upper end face of cylinder cap; Second, the casting plane tolerance of the seal groove that cyclinder head cover covers is larger, height difference between itself and cylinder cap is difficult to guarantee that Sealing compression ratio is stabilized within the scope of effective sealing, cause the end of cylinder cap 3 ' easily to form the seepage (seeing Fig. 2) of lubricating oil and oil gas, not only make engine consumption raise but also reduce the reliability of product.
Therefore, study and improve the Structural Tectonics of the existing Sealing for oil sprayer, be significant beyond doubt for the performance raising of diesel engine.
Model utility content
In view of this, the purpose of this utility model is to provide a kind of Sealing for oil sprayer, is provided with the oil sprayer of the seal and disposes the diesel engine of this oil sprayer, to can effectively solve the problem of the above-mentioned and other aspect existing in prior art.
For realizing above-mentioned object, the utility model has adopted following technological scheme:
For a Sealing for oil sprayer, described seal arrangement is on the mounting hole of valve chamber cover, and described Sealing comprises body portion and the projection be made up of elastic material, wherein
Described body portion is provided with the through hole for inserting described oil sprayer, and in described through hole, is provided with the protruding lip for sealing, and described lip is to put along the radial ring winding of described through hole;
Described projection is around being arranged on the sidepiece of described body portion, and in described projection, is provided with the skeleton part of being made up of metallic material.
In above-mentioned Sealing, preferably, described lip is to put along the radial ring winding of described through hole.
In above-mentioned Sealing, preferably, described lip and the described oil sprayer of described through hole are interference fit.
In above-mentioned Sealing, preferably, the described projection of described Sealing and the mounting hole of described valve chamber cover are interference fit.
In above-mentioned Sealing, preferably, the outer surface of described projection is ripple or saw-toothed shape.
In above-mentioned Sealing, preferably, described elastic material is rubber.
A kind of oil sprayer, described oil sprayer is provided with above one or more of described Sealing.
A kind of diesel engine, described diesel engine disposes above-mentioned oil sprayer.
The technical solution of the utility model is compared with existing design proposal, on the one hand Sealing adopt protuberance and valve chamber cover mounting hole coordinate the sealing having realized between valve chamber cover and Sealing, the through hole of Sealing adopts the drive fit of protruding lip and oil sprayer to realize the sealing between oil sprayer and Sealing on the other hand, can effectively prevent the leakage of lubricating oil and oil gas by above-mentioned sealing means, reduce the oil consumption of diesel engine with this.
Accompanying drawing explanation
Below with reference to drawings and Examples, the technical solution of the utility model is described in further detail, wherein:
Fig. 1 is the assembling schematic diagram of the Sealing for oil sprayer of the prior art.
Fig. 2 is the structural representation of top surface of cylinder cover of the prior art.
Fig. 3 is an embodiment's of the Sealing for oil sprayer of the present utility model fragmentary sectional view.
Fig. 4 is the assembling schematic diagram of the Sealing for oil sprayer in Fig. 3.
Embodiment
First, it should be noted that, to illustrate by way of example the Sealing for oil sprayer of the present utility model and be provided with Structural Tectonics, feature and the advantage of the oil sprayer of the seal below, but all descriptions are only used for describing, and they should be interpreted as the utility model is formed to any restriction.In addition, in mentioned herein each embodiment, described or implicit any single technical characteristics, or be shown or lie in any single technical characteristics in each accompanying drawing, still can between these technical characteristicss (or its equivalent), proceed combination in any or delete, thereby obtain of the present utility model more other embodiments that may directly not mention in this article.
As shown in Figure 2, it is schematically illustrating an embodiment's the schematic partial cross-sectional view of the Sealing for oil sprayer of the present utility model.Sealing 1 has by the body portion 2 of making such as rubber elastomeric material and projection 3, body portion 2 is provided with the through hole for inserting oil sprayer, and be provided with protruding lip 4 in the side-walls of through hole, lip 4 can be the lug boss of putting along the radial ring winding of through hole.Projection 3 is around the sidepiece place that is arranged on body portion 2.For the object of structural strength of projection that strengthens Sealing, in this projection, be provided with the skeleton part 5 of being made by metallic material.This skeleton part 5 can be bonded in the projection 3 of Sealing by techniques such as sulfurations.Refer to Fig. 4, in the time of assembling, operator use special frock Sealing 1 to be arranged in the mounting hole of valve chamber cover 8, form the sealing between Sealing 1 and valve chamber cover 8, subsequently oil sprayer 7 is inserted from Sealing 1 in cylinder cap 9, form the sealing between Sealing 1 and oil sprayer 7.
In conjunction with above-described embodiment, in some other embodiment, in order to make the sealing effect between Sealing and oil sprayer better, lip 4 and the oil sprayer 7 of the through hole of Sealing can be interference fit.In the time that oil sprayer inserts Sealing, the lip of Sealing is squeezed and the distortion of expecting occurs, and produces enough sealing loads Sealing and oil sprayer are combined together tightly with this.
As preferably, the outer surface 6 (being the surface of fitting with the mounting hole of valve chamber cover on projection) of projection can be designed to be ripple or saw-toothed shape, and the sealing load increasing between the projection of Sealing and the mounting hole of valve chamber cover with this makes the sealing effect between valve chamber cover and Sealing better.Certainly, the shape of the outer surface 6 of projection also can be according to different actual conditions flexible design, and can also be designed to other irregular shape except above-mentioned ripple or zigzag fashion.In addition,, for saving the reasons such as manufacture cost, on the outer surface of this projection, do not consider to arrange this ripple or saw-toothed shape or adopt other form can receive equally yet.Under this preferred situation, the projection of Sealing and the mounting hole of valve chamber cover can be interference fit.
In sum, Sealing for oil sprayer of the present utility model is changed conventional end face seal mode and is adopted radially static seal mode, can guarantee the integrity of sealing surface between Sealing and valve chamber cover and between Sealing and oil sprayer, thereby obtain desirable sealing effect.In addition, in view of this seal configuration for oil sprayer simple, easy for installation, can meet the condition of standardized production, therefore extremely recommend this Sealing and oil sprayer to support the use, advise applying the oil sprayer that is provided with the seal simultaneously in diesel engine.
More than having enumerated some specific embodiments illustrates in detail the Sealing for oil sprayer of the present utility model, is provided with the oil sprayer of the seal and disposes the diesel engine of this oil sprayer, these a few examples are only for explanation principle of the present utility model and mode of execution thereof, but not to restriction of the present utility model, in the situation that not departing from spirit and scope of the present utility model, those of ordinary skill in the art can also make various distortion and improvement.Therefore, all technological schemes that are equal to all should belong to category of the present utility model also by every claim of the present utility model is limited.
Claims (7)
1. for a Sealing for oil sprayer, described seal arrangement, on the mounting hole of valve chamber cover, is characterized in that, described Sealing comprises body portion and the projection be made up of elastic material, wherein
Described body portion is provided with the through hole for inserting described oil sprayer, and in described through hole, is provided with the protruding lip for sealing, and described lip is to put along the radial ring winding of described through hole;
Described projection is around being arranged on the sidepiece of described body portion, and in described projection, is provided with the skeleton part of being made up of metallic material.
2. Sealing according to claim 1, is characterized in that, described lip and the described oil sprayer of described through hole are interference fit.
3. Sealing according to claim 1, is characterized in that, the described projection of described Sealing and the mounting hole of described valve chamber cover are interference fit.
4. according to the Sealing described in any one in claim 1-3, it is characterized in that, the outer surface of described projection is ripple or saw-toothed shape.
5. according to the Sealing described in any one in claim 1-3, it is characterized in that, described elastic material is rubber.
6. an oil sprayer, is characterized in that, described oil sprayer is provided with according to appointing one or more of described Sealings in claim 1-5.
7. a diesel engine, is characterized in that, described diesel engine disposes oil sprayer according to claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320683285.4U CN203670023U (en) | 2013-11-01 | 2013-11-01 | Oil injector, diesel engine and sealing part for oil injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320683285.4U CN203670023U (en) | 2013-11-01 | 2013-11-01 | Oil injector, diesel engine and sealing part for oil injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670023U true CN203670023U (en) | 2014-06-25 |
Family
ID=50966331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320683285.4U Expired - Lifetime CN203670023U (en) | 2013-11-01 | 2013-11-01 | Oil injector, diesel engine and sealing part for oil injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632459A (en) * | 2015-01-26 | 2015-05-20 | 陕西北方动力有限责任公司 | In-line four-cylinder water-cooling diesel engine cylinder head cover |
| CN108495994A (en) * | 2015-11-26 | 2018-09-04 | 罗伯特·博世有限公司 | Sealing element and fuel injector with sealing element |
-
2013
- 2013-11-01 CN CN201320683285.4U patent/CN203670023U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632459A (en) * | 2015-01-26 | 2015-05-20 | 陕西北方动力有限责任公司 | In-line four-cylinder water-cooling diesel engine cylinder head cover |
| CN108495994A (en) * | 2015-11-26 | 2018-09-04 | 罗伯特·博世有限公司 | Sealing element and fuel injector with sealing element |
| CN108495994B (en) * | 2015-11-26 | 2021-06-08 | 罗伯特·博世有限公司 | Sealing element and fuel injector having a sealing element |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |