CN203050826U - 6-BT engine exhaust valve - Google Patents
6-BT engine exhaust valve Download PDFInfo
- Publication number
- CN203050826U CN203050826U CN 201220731977 CN201220731977U CN203050826U CN 203050826 U CN203050826 U CN 203050826U CN 201220731977 CN201220731977 CN 201220731977 CN 201220731977 U CN201220731977 U CN 201220731977U CN 203050826 U CN203050826 U CN 203050826U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve stem
- diameter
- black skin
- retainer
- 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 - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 description 6
- 230000008676 import Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model is related to a kind of 6BT engine exhaust ports, a kind of 6BT engine exhaust ports, including valve retainer and valve stem, and valve retainer is made up of valve top, sealing cone and black skin, and described valve top is flat-tope structure, is connected with sealing cone；The axial line of valve retainer and valve stem is overlapped, and the black skin reduced diameter that valve retainer is connected with valve stem, black skin arc profile edge and the horizontal contour edge of valve stem are tangent；Valve stem is ladder circle column structure, and a diameter of 9mm on the top that valve stem is connected with black skin circular arc, the lower end diameter of valve stem is 8mm.The lower end 8mm of valve stem diameter segment uses arc transition with 9mm diameter ends junction.Using the technical program, valve crash rate is reduced to 2PPM by 190PPM, increases the intensity of bar portion, improves the reliability of valve, reduces crash rate.
Description
Technical field
The utility model is related to engine exhaust port technical field, and in particular to a kind of 6BT engine exhaust ports.
Background technology
Engine is the heart of vehicle, and valve is the core component of engine.The reliability of valve plays vital effect to engine, and its reliability depends on its material, structure, the reasonability of size design.Comingses 6BT this engine, it, which is designed, comes from the U.S., the factors such as design and material are all derived from continental United States, but when this engine is introduced into China, many maintenance parts are typically all manufactured by China, for engine valve one, using the material in native country, the crash rate in market is very high.This valve materials of 6BT are 21-4N, and the crash rate using the material market of import is very low, just high using domestic crash rate, China production at present with regard to Valve Steel, again without import reliable and stable very high with the price of import；Failure mode is seen, mainly turned around.Because that is claimed damages after failure is more, many producers all refuse to produce 6BT valve.
Utility model content
The utility model is intended to provide a kind of 6BT engine exhaust ports, and to solve the deficiencies in the prior art, the technical problems to be solved in the utility model is achieved through the following technical solutions.
A kind of 6BT engine exhaust ports, including valve retainer and valve stem, described valve retainer are made up of valve top, sealing cone and black skin, and described valve top is flat-tope structure, is connected with sealing cone；The axial line of valve retainer and valve stem is overlapped, and the black skin reduced diameter that valve retainer is connected with valve stem, black skin arc profile edge and the horizontal contour edge of valve stem are tangent；Described valve stem is ladder circle column structure, and a diameter of 9mm on the top that valve stem is connected with black skin circular arc, the lower end diameter of valve stem is 8mm.
The lower end 8mm of valve stem diameter segment uses arc transition with 9mm diameter ends junction.
There is advantages below using above-mentioned technical proposal：
1st, under a diameter of 9mm of valve stem, same material context, one ton of power can be born more.
2nd, the structure of our improved this valves of 6BT, greatly reduces the crash rate of valve, and valve crash rate is reduced to 2PPM by 190PPM, increases the intensity of bar portion, improves the reliability of valve, reduces crash rate.
Brief description of the drawings
Fig. 1 is the structural representation of exhaust valve in the prior art.
Fig. 2 is the structural representation of the utility model exhaust valve.
Embodiment
Design feature of the present utility model is expanded on further with specific embodiment below in conjunction with the accompanying drawings.
A kind of 6BT engine exhaust ports, including valve retainer and valve stem, described valve retainer are made up of valve top, sealing cone and black skin, and described valve top is flat-tope structure, is connected with sealing cone；The axial line of valve retainer and valve stem is overlapped, and the black skin reduced diameter that valve retainer is connected with valve stem, black skin arc profile edge and the horizontal contour edge of valve stem are tangent；Described valve stem is ladder circle column structure, and a diameter of 9mm on the top that valve stem is connected with black skin circular arc, the lower end diameter of valve stem is 8mm.The lower end 8mm of valve stem diameter segment uses arc transition with 9mm diameter ends junction.
The above embodiment only expresses a kind of embodiment of the present utility model, but therefore can not be interpreted as the limitation to the utility model scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, various modifications and improvements can be made.These belong to protection domain of the present utility model.
Claims (2)
1. a kind of 6BT engine exhaust ports, including valve retainer and valve stem, it is characterised in that：Described valve retainer is made up of valve top, sealing cone and black skin, and described valve top is flat-tope structure, is connected with sealing cone；The axial line of valve retainer and valve stem is overlapped, and the black skin reduced diameter that valve retainer is connected with valve stem, black skin arc profile edge and the horizontal contour edge of valve stem are tangent；Described valve stem is ladder circle column structure, and a diameter of 9mm on the top that valve stem is connected with black skin circular arc, the lower end diameter of valve stem is 8mm.
2. a kind of 6BT engine exhaust ports according to claim 1, it is characterised in that：The lower end 8mm of valve stem diameter segment uses arc transition with 9mm diameter ends junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220731977 CN203050826U (en) | 2012-12-27 | 2012-12-27 | 6-BT engine exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220731977 CN203050826U (en) | 2012-12-27 | 2012-12-27 | 6-BT engine exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050826U true CN203050826U (en) | 2013-07-10 |
Family
ID=48733789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220731977 Expired - Fee Related CN203050826U (en) | 2012-12-27 | 2012-12-27 | 6-BT engine exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203050826U (en) |
-
2012
- 2012-12-27 CN CN 201220731977 patent/CN203050826U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20151227 |
|
| EXPY | Termination of patent right or utility model |