CN208267924U - Engine valve guide with oil leak hole - Google Patents
Engine valve guide with oil leak hole Download PDFInfo
- Publication number
- CN208267924U CN208267924U CN201820531434.8U CN201820531434U CN208267924U CN 208267924 U CN208267924 U CN 208267924U CN 201820531434 U CN201820531434 U CN 201820531434U CN 208267924 U CN208267924 U CN 208267924U
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- CN
- China
- Prior art keywords
- oil
- valve guide
- leak hole
- guide bushing
- oil leak
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- 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.)
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The engine valve guide with oil leak hole of the utility model, valve guide bushing upper end inner wall is equipped with mounting groove, annular oil absorbent material is equipped in mounting groove, valve guide bushing upper end offers upper layer oil leak hole and lower layer's oil leak hole, upper layer oil leak hole is directly connected to valve guide bushing inner cavity, and lower layer's oil leak hole is directly connected to annular oil absorbent material.Machine oil enters between valve guide bushing and valve stem in gap, is distributed in entire valve guide bushing by the reciprocating motion of gravity and valve in valve guide bushing.After the machine oil entered in valve guide bushing runs up to a certain amount of, excessive machine oil can be adsorbed by oil absorbent material and is discharged by oil leak hole.Simultaneously because engine oil leakage quantity will continue to increase after the seal lip abrasion of valve oil seal, these excessive machine oil are discharged by the oil leak hole of valve guide bushing.Only the flowing machine oil excessively entered in valve guide bushing is discharged for annular oil absorbent material and oil leak hole in valve guide bushing, effectively avoids the problem that burn because of excessive the machine oil a large amount of carbon distributions generated and discharge variation.
Description
Technical field
The utility model relates to a kind of engine valve guides, lead more particularly to a kind of engine valve with oil leak hole
Pipe.
Background technique
It needs to be lubricated the movement clearance between valve and valve guide bushing in engine operation process, lubricating oil passes through
Valve oil seal enters in the movement clearance between valve and valve guide bushing by gravity and valve reciprocation.Valve oil seal has one
Fixed engine oil leakage quantity, simultaneously because engine oil leakage quantity will increase, and work as valve guide bushing after the seal lip abrasion of valve oil seal
A large amount of machine oil of gap class accumulation between valve enter burning Indoor Combustion, will cause engine emission and are deteriorated and generate
A large amount of carbon distributions, are unable to satisfy emission regulation demands.
Utility model content
The utility model is in view of the problems of the existing technology and insufficient, provides a kind of novel engine with oil leak hole
Valve guide bushing, the interior setting oil absorbent material of valve guide bushing and draining, when the machine oil entered in valve guide bushing is excessive, excessive machine oil quilt
Be adsorbed on oil absorbent material, when machine oil runs up to a certain amount of can by oil leak hole be discharged valve guide bushing outside, avoid excessive machine oil into
Enter and burn into engine chamber, can effectively solve because excessive machine oil pass through between valve guide bushing and valve movement clearance into
The problem of entering carbon distribution problem caused by combustion chamber and discharge variation.
The utility model is to solve above-mentioned technical problem by following technical proposals:
The utility model provides a kind of engine valve guide with oil leak hole, it is characterized in that, the valve guide bushing
Upper end inner wall is embedded with mounting groove, and annular oil absorbent material is laid in the mounting groove, and the upper end of the valve guide bushing offers
Layer oil leak hole and lower layer's oil leak hole, the upper layer oil leak hole are directly connected to the inner cavity of valve guide bushing, and lower layer's oil leak hole is straight
Annular oil absorbent material is passed in succession.
Preferably, the upper layer oil leak hole is identical with the aperture of lower layer oil leak hole.
Preferably, the aperture of the upper layer oil leak hole and lower layer's oil leak hole is 0.5mm-1mm.
Preferably, the internal diameter of the annular oil absorbent material is identical as the internal diameter of valve guide bushing, or, the annular oil absorbent material is interior
Diameter is greater than the internal diameter of valve guide bushing.
Preferably, the height of the annular oil absorbent material is 1.6-2.5mm, the wall thickness of the annular oil absorbent material is 1mm-
1.5mm。
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get the utility model respectively compared with
Good example.
The positive effect of the utility model is:
The utility model solution enters excessive machine oil in valve guide bushing and cannot exclude and enter caused by combustion chambers burn
Discharge and carbon distribution problem.Machine oil enters between valve guide bushing and valve stem in gap, by gravity and valve in valve guide bushing
Reciprocating motion be distributed in entire valve guide bushing.After entering the machine oil in valve guide bushing and running up to a certain amount, mistake
More machine oil can be adsorbed by oil absorbent material, and excessive machine oil is discharged by oil leak hole.Simultaneously because the seal lip of valve oil seal
Engine oil leakage quantity will continue to increase after wearing, and the excessive machine oil in this part is discharged by the oil leak hole of valve guide bushing.Valve is led
Annular oil absorbent material and oil leak hole in pipe will not have an impact the oil film for playing lubricating action, only will excessively enter valve guide bushing
Interior flowing machine oil discharge, it is possible to prevente effectively from the problem of being deteriorated because of a large amount of carbon distributions of excessive machine oil burning generation and discharge.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the engine valve guide with oil leak hole of the utility model preferred embodiment.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the structural schematic diagram of the annular oil absorbent material of the utility model preferred embodiment.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, those of ordinary skill in the art's every other embodiment obtained without making creative work, all belongs to
In the range of the utility model protection.
As shown in Figure 1-3, the present embodiment provides a kind of engine valve guide with oil leak hole, the valve guide bushing 1
Upper end inner wall is embedded with mounting groove 5, and annular oil absorbent material 2 is laid in the mounting groove 5, and the upper end of the valve guide bushing 1 opens up
There are upper layer oil leak hole 3 and lower layer's oil leak hole 4, the upper layer oil leak hole 3 is directly connected to the inner cavity of valve guide bushing 1, the lower layer
Oil leak hole 4 is directly connected to annular oil absorbent material 2.The upper layer oil leak hole 3 is identical with the aperture of lower layer oil leak hole 4.For example, described
The aperture of upper layer oil leak hole 3 and lower layer's oil leak hole 4 is 0.5mm-1mm.The internal diameter and valve guide bushing 1 of the annular oil absorbent material 2
Internal diameter it is identical, or, it is described annular oil absorbent material 2 internal diameter be greater than valve guide bushing 1 internal diameter.The height of the annular oil absorbent material 2
Wall thickness for 1.6-2.5mm, the annular oil absorbent material 2 is 1mm-1.5mm.
When the machine oil entered in valve guide bushing 1 run up to it is a certain amount of after, the annular oil absorbent material 2 of 1 upper end of valve guide bushing
A part of excessive machine oil can be adsorbed, the upper layer oil leak hole 3 on annular 2 upper layer of oil absorbent material is directly connected to 1 inner cavity of valve guide bushing, is come
It is too late to be discharged by upper layer oil leak hole 3 by the machine oil that annular oil absorbent material 2 adsorbs.Simultaneously when absorption in annular oil absorbent material 2
After machine oil reaches a certain amount of, excessive machine oil can be discharged by lower layer's oil leak hole 4 under the extruding of valve reciprocation.
Valve guide bushing described in the utility model with oil leak hole can be controlled effectively into excessive in valve guide bushing
Machine oil avoids causing serious carbon distribution to ask with what discharge was deteriorated because a large amount of machine oil enter combustion chambers burn by valve guide bushing
Topic.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely examples, and the protection scope of the utility model is defined by the appended claims.Those skilled in the art
Member can make numerous variations or be repaired to these embodiments under the premise of without departing substantially from the principles of the present invention and essence
Change, but these change and modification each fall within the protection scope of the utility model.
Claims (5)
1. a kind of engine valve guide with oil leak hole, which is characterized in that the upper end inner wall of the valve guide bushing (1) is embedded with
Mounting groove (5) is laid with annular oil absorbent material (2) in the mounting groove (5), and the upper end of the valve guide bushing (1) offers upper layer
Oil leak hole (3) and lower layer's oil leak hole (4), the upper layer oil leak hole (3) is directly connected to the inner cavity of valve guide bushing (1), under described
Layer oil leak hole (4) is directly connected to annular oil absorbent material (2).
2. as described in claim 1 with the engine valve guide of oil leak hole, which is characterized in that the upper layer oil leak hole (3)
It is identical with the aperture of lower layer's oil leak hole (4).
3. as claimed in claim 2 with the engine valve guide of oil leak hole, which is characterized in that the upper layer oil leak hole (3)
Aperture with lower layer's oil leak hole (4) is 0.5mm-1mm.
4. as described in claim 1 with the engine valve guide of oil leak hole, which is characterized in that the annular oil absorbent material (2)
Internal diameter it is identical as the internal diameter of valve guide bushing (1), or, it is described annular oil absorbent material (2) internal diameter be greater than valve guide bushing (1) it is interior
Diameter.
5. as described in claim 1 with the engine valve guide of oil leak hole, which is characterized in that the annular oil absorbent material (2)
Height be 1.6-2.5mm, it is described annular oil absorbent material (2) wall thickness be 1mm-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820531434.8U CN208267924U (en) | 2018-04-16 | 2018-04-16 | Engine valve guide with oil leak hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820531434.8U CN208267924U (en) | 2018-04-16 | 2018-04-16 | Engine valve guide with oil leak hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208267924U true CN208267924U (en) | 2018-12-21 |
Family
ID=64676945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820531434.8U Active CN208267924U (en) | 2018-04-16 | 2018-04-16 | Engine valve guide with oil leak hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208267924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163238A (en) * | 2022-07-26 | 2022-10-11 | 河南柴油机重工有限责任公司 | Valve guide pipe |
-
2018
- 2018-04-16 CN CN201820531434.8U patent/CN208267924U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163238A (en) * | 2022-07-26 | 2022-10-11 | 河南柴油机重工有限责任公司 | Valve guide pipe |
| CN115163238B (en) * | 2022-07-26 | 2024-02-20 | 河南柴油机重工有限责任公司 | Valve guide pipe |
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| GR01 | Patent grant |