CN204402611U - What have wind-guiding wing plate rushes sodium valve - Google Patents
What have wind-guiding wing plate rushes sodium valve Download PDFInfo
- Publication number
- CN204402611U CN204402611U CN201420819434.XU CN201420819434U CN204402611U CN 204402611 U CN204402611 U CN 204402611U CN 201420819434 U CN201420819434 U CN 201420819434U CN 204402611 U CN204402611 U CN 204402611U
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- CN
- China
- Prior art keywords
- valve
- sodium
- wind
- wing plate
- guiding wing
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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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a kind of there is wind-guiding wing plate rush sodium valve, described valve stem inside is axially arranged with cylindrical stem along it and rushes sodium chamber, described head portion that outer side wall is provided with the wind-guiding wing plate guiding gas flow, this has rushing sodium valve and being walked by the heat conduction that air valve cervix and valve end surface center gather preferably of wind-guiding wing plate, thus valve is dispelled the heat evenly.
Description
Technical field
The utility model relates to engine component field, specifically a kind of there is wind-guiding wing plate rush sodium valve.
Background technique
Gasoline engine exhaust door in the past adopts solid exhaust valve, and exhaust valve head adopts resistant to elevated temperatures austenite material, and bar portion adopts martensitic material, then forms through processes such as welding, surface treatments.The exhaust valve of this structure, technique only can be used in delivery temperature and is no more than on the natural aspiration petrol engine of 750 DEG C.In supercharged engine, owing to employing compress inlet air technology (specifically having turbosupercharging, engine driven supercharging and two supercharging), make the burning pressure of explosion in cylinder than high during natural aspiration, the temperature in cylinder is also than high during natural aspiration, thus the temperature of exhaust valve raises accordingly.The temperature of Gu Paiqimenchu often exceeds the allowable temperature of material for exhaust valves, thus reduces exhaust valve working life, reduces heat dispersion.In order to address this problem, people are at engine valve stem boring formation one cavity of exhaust valve, the fusing point of sodium metal is 97.81 DEG C, under the prerequisite of rational hollow cavity volume, when valve works, temperature raises very fast, sodium metal becomes liquid state when high temperature from solid-state, move up and down in hollow cavity and constantly wash away valve face and valve stem, the heat load of valve face end is effectively delivered to valve stem, then by the water channel coolant exhaust door of cylinder cap, improve the thermal diffusivity of exhaust valve, the heat load of effective reduction valve face, in addition, the proportion of sodium metal is less, the total quality of valve diminishes, and the rigidity grow of valve, under equal conditions, the amount of deformation of valve is little, but the exhaust valve that existing hollow fills sodium structure has a problem: the heat of air valve cervix and valve end surface center is not easy to be conducted away smoothly, be the position that temperature is assembled, the heat dissipation uniformity of exhaust valve can be affected, reduce the exhaust valve life-span.
Therefore, for overcoming the above problems, need a kind of can being walked by the heat conduction that air valve cervix and valve end surface center gather preferably, thus head portion that is dispelled the heat there is wind-guiding wing plate uniformly rush sodium valve.
Model utility content
In view of this, the purpose of this utility model overcomes defect of the prior art, and providing a kind of can walk the heat conduction that air valve cervix and valve end surface center gather preferably, thus exhaust valve is dispelled the heat there is wind-guiding wing plate uniformly rush sodium valve.
Of the present utility model there is wind-guiding wing plate rush sodium valve, described valve stem inside is axially arranged with cylindrical stem along it and rushes sodium chamber, and described head portion that outer side wall is provided with the wind-guiding wing plate guiding gas flow.
Further, described bar portion rushes upper end, sodium chamber and extends to valve stem outer end and to be communicated with outward with valve stem and valve stem outer end is fixedly connected with valve plug screw by screw thread, and described bar portion is rushed sodium chamber and sealed by this valve plug screw;
Further, be provided with the head rushing sodium chamber coaxial communication with bar portion and rush sodium chamber and this head rushes sodium chamber is cone-shaped cavity and described head rushes sodium chamber internal diameter increases gradually from top to bottom in described valve head, described bar portion rushes sodium chamber and head and rushes in sodium chamber and be filled with sodium.
Further, described valve stem surface is provided with chromium coating; Described valve head is circumferentially with annular groove along it; Overlay cladding is coated with and overlay surface is conical surface in described annular groove;
Further, the surface of contact of described annular groove and overlay cladding is arc surface;
Further, described valve stem comprises the shaft I and the shaft II that be connected coaxial with shaft I that are fixedly connected with valve head vertically, and shaft I is the solid of rotation that reduces gradually of radius from top to bottom, and shaft II is less than the cylindrical body of shaft I least radius for radius;
Further, described valve head bottom surface is provided with the circular groove coaxial with valve head;
Further, the length of rushing the valve guide bushing that sodium valve coordinates with this with wind-guiding wing plate is S
1, this sodium valve that rushes with wind-guiding wing plate is S relative to the stroke that valve guide bushing moves
2, the axial length of described valve stem plated surface layers of chrome is S
1+ S
2;
Further, described valve plug screw is circumferentially provided with rod slot and rod slot diameter is less than valve collet internal diameter.
The beneficial effects of the utility model are: of the present utility model there is wind-guiding wing plate rush sodium valve, head portion that outer side wall is provided with the wind-guiding wing plate guiding gas flow, compare existing valve, head portion that fully can be dispelled the heat as radiating fin by the wind-guiding wing plate of this structural type of the utility model, can eddy current be manufactured again simultaneously, be conducive to inflammable gas mixing.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1.
Embodiment
Fig. 1 is structural representation of the present utility model, Fig. 2 is the partial enlarged drawing at A place in Fig. 1, as shown in the figure, in the present embodiment there is wind-guiding wing plate 11 rush sodium valve, described valve stem inside is axially arranged with cylindrical stem along it and rushes sodium chamber 9, described valve head 3 outer side walls are provided with the wind-guiding wing plate 11 guiding gas flow, compare existing valve, valve head 3 fully can dispel the heat as radiating fin by the wind-guiding wing plate 11 of this structural type of the utility model, can eddy current be manufactured again simultaneously, be conducive to inflammable gas mixing.
In the present embodiment, described bar portion rushes upper end, sodium chamber 9 and extends to valve stem outer end and to be communicated with outward with valve stem and valve stem outer end is fixedly connected with valve plug screw by screw thread, described bar portion is rushed sodium chamber 9 and is sealed by this valve plug screw, the bar portion of this structure rushes sodium chamber 9 and more easily processes, and is also easy on the other hand fill sodium metal.
In the present embodiment, be provided with the head rushing sodium chamber 9 coaxial communication with bar portion in described valve head 3 and rush sodium chamber 10 and this head rushes sodium chamber 10 for cone-shaped cavity and described head rushes sodium chamber 10 internal diameter increases gradually from top to bottom, described bar portion rushes sodium chamber 9 and rushes in sodium chamber 10 with head and be filled with sodium, because the temperature near valve reduces from down to up gradually, therefore this cone-shaped cavity can make the temperature of valve be tending towards even, avoids producing thermal stress.
In the present embodiment, described valve stem surface is provided with chromium coating 6; Described valve head is circumferentially with annular groove along it; Be coated with overlay cladding 2 in described annular groove and overlay cladding 2 surface for conical surface; After arranging and rushing sodium chamber, the structural strength of valve stem will reduce, and the chromium coating on valve stem surface can make up the mechanical strength of valve stem, improves its heat resistance simultaneously; In addition, the overlay cladding 2 that valve head 3 circumference is arranged, this overlay cladding 2 matches with air valve seat ring, effectively can improve the wearing and tearing of valve head 3.
In the present embodiment, described annular groove 8 is arc surface with the surface of contact of overlay cladding 22, and this arc surface can increase overlay cladding 22 and the area of contact of valve head 3, ensures that overlay cladding 22 is firmly connected with valve head 3.
In the present embodiment, described valve stem comprises the shaft I 4 and the shaft II 5 that be connected coaxial with shaft I 4 that are fixedly connected with valve head 3 vertically, shaft I 4 is the solid of rotation that reduces gradually of radius from top to bottom, shaft II 5 is less than the cylindrical body of shaft I 4 least radius for radius, " lower end " as herein described refers to towards valve head 3 one end, end opposite is " upper end ", shaft I 4 is the changeover portion between valve head 3 and shaft II 5, this seamlessly transit can avoid valve stem occur stress concentrate, simultaneously due to shaft I 4 at work, its temperature reduces from bottom to up gradually, adopt the shaft I 4 of this structure that it can be made to dispel the heat evenly.
In the present embodiment, described valve head 3 bottom surface is provided with the circular groove 1 coaxial with valve head 3, and this circular groove 1, as a part for engine chamber, can adjust the compression ratio of motor in certain limit by the size adjusting circular groove 1.
In the present embodiment, the length of rushing the valve guide bushing that sodium valve coordinates having wind-guiding wing plate with this is S
1, this sodium valve that rushes with wind-guiding wing plate is S relative to the stroke that valve guide bushing moves
2, the axial length of described valve stem plated surface layers of chrome 6 is S
1+ S
2as shown in Figure 1, chromium coating 6 is for being slidably matched with valve guide bushing, to reduce wearing and tearing, for improving the utilization ratio of chromium coating 6, cost-saving, the axial length of the chromium coating 6 that the present embodiment adopts is length and the valve stroke sum of valve guide bushing, ensure that valve stem is all coated with chromium coating 6 with the surface of contact of valve guide bushing in reciprocating process, thus strengthen its wear resistance.
In the present embodiment, described valve plug screw is circumferentially provided with rod slot 7 and rod slot 7 diameter is less than valve collet internal diameter, ensures that valve stem is connected with valve reliable lock.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (9)
1. what have wind-guiding wing plate rushes a sodium valve, comprises valve head and valve stem, it is characterized in that: described valve stem inside is axially arranged with cylindrical stem along it and rushes sodium chamber, and described head portion that outer side wall is provided with the wind-guiding wing plate guiding gas flow.
2. according to claim 1 there is wind-guiding wing plate rush sodium valve, it is characterized in that: described bar portion rushes upper end, sodium chamber and extends to valve stem outer end and to be communicated with outward with valve stem and valve stem outer end is fixedly connected with valve plug screw by screw thread, and described bar portion is rushed sodium chamber and sealed by this valve plug screw.
3. according to claim 2 there is wind-guiding wing plate rush sodium valve, it is characterized in that: be provided with the head rushing sodium chamber coaxial communication with bar portion in described valve head and rush sodium chamber and this head rushes sodium chamber is cone-shaped cavity and described head rushes sodium chamber internal diameter increases gradually from top to bottom, described bar portion rushes sodium chamber and head and rushes in sodium chamber and be filled with sodium.
4. according to claim 3 there is wind-guiding wing plate rush sodium valve, it is characterized in that: described valve stem surface is provided with chromium coating; Described valve head is circumferentially with annular groove along it; Overlay cladding is coated with and overlay surface is conical surface in described annular groove.
5. according to claim 4 there is wind-guiding wing plate rush sodium valve, it is characterized in that: the surface of contact of described annular groove and overlay cladding is arc surface.
6. according to claim 5 there is wind-guiding wing plate rush sodium valve, it is characterized in that: described valve stem comprises the shaft I and the shaft II that be connected coaxial with shaft I that are fixedly connected with valve head vertically; Described shaft I is the solid of rotation that reduces gradually of radius from top to bottom; Described shaft II is less than the cylindrical body of shaft I least radius for radius.
7. according to claim 6 there is wind-guiding wing plate rush sodium valve, it is characterized in that: described valve head bottom surface is provided with the circular groove coaxial with valve head.
8. according to claim 7 there is wind-guiding wing plate rush sodium valve, it is characterized in that: the length of rushing the valve guide bushing that sodium valve coordinates having wind-guiding wing plate with this is S
1, this sodium valve that rushes with wind-guiding wing plate is S relative to the stroke that valve guide bushing moves
2, the axial length of described valve stem plated surface layers of chrome is S
1+ S
2.
9. according to claim 8 there is wind-guiding wing plate rush sodium valve, it is characterized in that: described valve plug screw is circumferentially provided with rod slot and rod slot diameter is less than valve collet internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420819434.XU CN204402611U (en) | 2014-12-19 | 2014-12-19 | What have wind-guiding wing plate rushes sodium valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420819434.XU CN204402611U (en) | 2014-12-19 | 2014-12-19 | What have wind-guiding wing plate rushes sodium valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204402611U true CN204402611U (en) | 2015-06-17 |
Family
ID=53426479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420819434.XU Expired - Fee Related CN204402611U (en) | 2014-12-19 | 2014-12-19 | What have wind-guiding wing plate rushes sodium valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204402611U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257359A (en) * | 2015-10-30 | 2016-01-20 | 重庆奇甫机械有限责任公司 | Spiral double-cavity sodium-filled valve with spiral blade |
| CN105298580A (en) * | 2015-10-30 | 2016-02-03 | 重庆奇甫机械有限责任公司 | Self-cleaning type sodium filling valve with spiral blade |
| CN105443186A (en) * | 2015-10-30 | 2016-03-30 | 重庆奇甫机械有限责任公司 | Air valve with circulative spiral type conical cavity |
| CN105587359A (en) * | 2016-03-09 | 2016-05-18 | 广西玉柴机器股份有限公司 | Air inlet system of engine |
-
2014
- 2014-12-19 CN CN201420819434.XU patent/CN204402611U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257359A (en) * | 2015-10-30 | 2016-01-20 | 重庆奇甫机械有限责任公司 | Spiral double-cavity sodium-filled valve with spiral blade |
| CN105298580A (en) * | 2015-10-30 | 2016-02-03 | 重庆奇甫机械有限责任公司 | Self-cleaning type sodium filling valve with spiral blade |
| CN105443186A (en) * | 2015-10-30 | 2016-03-30 | 重庆奇甫机械有限责任公司 | Air valve with circulative spiral type conical cavity |
| CN105587359A (en) * | 2016-03-09 | 2016-05-18 | 广西玉柴机器股份有限公司 | Air inlet system of engine |
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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: 20150617 Termination date: 20151219 |
|
| EXPY | Termination of patent right or utility model |