CN105401997A - Spiral flow guiding and sodium injecting air valve with branch channels - Google Patents
Spiral flow guiding and sodium injecting air valve with branch channels Download PDFInfo
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- CN105401997A CN105401997A CN201510719585.7A CN201510719585A CN105401997A CN 105401997 A CN105401997 A CN 105401997A CN 201510719585 A CN201510719585 A CN 201510719585A CN 105401997 A CN105401997 A CN 105401997A
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- Prior art keywords
- valve
- sodium
- rushes
- branch flow
- head
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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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Abstract
The invention discloses a spiral flow guiding and sodium injecting air valve with branch channels. An air valve rod is internally provided with a cylindrical rod part sodium injecting cavity in the axial direction of the air valve rod and the multiple branch channels communicated with the rod part sodium injecting cavity and distributed in the axial direction of the air valve rod. The length of the branch channels is gradually shortened in the direction away from an air valve head. According to the spiral flow guiding and sodium injecting air valve with the branch channels, heat accumulating at the neck portion of the air valve and the center of the end surface of the air valve head can be well transferred away, and accordingly the heat of the air valve is dissipated evenly.
Description
Technical field
The present invention relates to engine component field, specifically a kind of spiral stream guidance with branch flow passage rushes 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 the spiral stream guidance making head portion that heat radiation have branch flow passage uniformly rushes sodium valve.
Summary of the invention
In view of this, the object of the invention is to overcome defect of the prior art, providing a kind of can walk the heat conduction that air valve cervix and valve end surface center gather preferably, thus the spiral stream guidance making exhaust valve heat radiation have branch flow passage uniformly rushes sodium valve.
The spiral stream guidance with branch flow passage of the present invention rushes sodium valve, comprise valve head and valve stem, described valve head outer side wall is provided with around its axially extended helical blade, described valve stem is inner to be axially arranged with cylindrical stem along it and to rush sodium chamber and rush sodium chamber with this bar portion and to be communicated with and along multiple branch flow passages of valve stem axial distribution, the length edge of described branch flow passage is shortened gradually away from the direction of valve head;
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 head bottom surface is provided with the circular groove coaxial with valve head;
Further, the length that the spiral stream guidance with this with branch flow passage rushes the valve guide bushing that sodium valve coordinates is S
1, it is S that this spiral stream guidance with branch flow passage rushes sodium valve 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 invention has the beneficial effects as follows: the spiral stream guidance with branch flow passage of the present invention rushes 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 present invention, eddy current can be manufactured again simultaneously, be conducive to inflammable gas mixing, branch flow passage is conducive to the area of contact increasing sodium metal and valve stem, the exchange heat speed of sodium metal in cavity and valve head can be strengthened.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1;
Fig. 3 is the structural representation of helical blade of the present invention
Embodiment
Fig. 1 is structural representation of the present invention, Fig. 2 is the partial enlarged drawing at A place in Fig. 1, as shown in the figure, the spiral stream guidance with branch flow passage in the present embodiment rushes sodium valve, described valve head 3 outer side wall is provided with around its axially extended helical blade 11, described valve stem is inner to be axially arranged with cylindrical stem along it and to rush sodium chamber 9 and rush sodium chamber 9 with this bar portion and to be communicated with and along multiple branch flow passages 12 of valve stem axial distribution, the length of described branch flow passage 12 shortens gradually along the direction away from valve head.
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 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 that the spiral stream guidance having branch flow passage with this rushes the valve guide bushing that sodium valve coordinates is S
1, it is S that this spiral stream guidance with branch flow passage rushes sodium valve 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 technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (8)
1. a spiral stream guidance with branch flow passage rushes sodium valve, comprise valve head and valve stem, it is characterized in that: described valve head outer side wall is provided with around its axially extended helical blade, described valve stem is inner to be axially arranged with cylindrical stem along it and to rush sodium chamber and rush sodium chamber with this bar portion and to be communicated with and along multiple branch flow passages of valve stem axial distribution, the length edge of described branch flow passage is shortened gradually away from the direction of valve head.
2. the spiral stream guidance with branch flow passage according to claim 1 rushes 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. the spiral stream guidance with branch flow passage according to claim 2 rushes 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. the spiral stream guidance with branch flow passage according to claim 3 rushes 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. the spiral stream guidance with branch flow passage according to claim 4 rushes sodium valve, it is characterized in that: the surface of contact of described annular groove and overlay cladding is arc surface.
6. the spiral stream guidance with branch flow passage according to claim 5 rushes sodium valve, it is characterized in that: described valve head bottom surface is provided with the circular groove coaxial with valve head.
7. the spiral stream guidance with branch flow passage according to claim 6 rushes sodium valve, it is characterized in that: the length that the spiral stream guidance having branch flow passage with this rushes the valve guide bushing that sodium valve coordinates is S
1, it is S that this spiral stream guidance with branch flow passage rushes sodium valve 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.
8. the spiral stream guidance with branch flow passage according to claim 7 rushes 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 |
|---|---|---|---|
| CN201510719585.7A CN105401997A (en) | 2015-10-30 | 2015-10-30 | Spiral flow guiding and sodium injecting air valve with branch channels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510719585.7A CN105401997A (en) | 2015-10-30 | 2015-10-30 | Spiral flow guiding and sodium injecting air valve with branch channels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105401997A true CN105401997A (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510719585.7A Pending CN105401997A (en) | 2015-10-30 | 2015-10-30 | Spiral flow guiding and sodium injecting air valve with branch channels |
Country Status (1)
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|---|---|
| CN (1) | CN105401997A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110621851A (en) * | 2017-05-17 | 2019-12-27 | 联邦摩高气门机构公司 | Poppet valve and method of manufacturing the same |
| CN110662889A (en) * | 2017-05-17 | 2020-01-07 | 联邦摩高气门机构公司 | Poppet valve and method of manufacturing the same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR817272A (en) * | 1936-05-09 | 1937-08-31 | Valve with self-rotating device for combustion or internal combustion engines | |
| JPH07180549A (en) * | 1993-12-24 | 1995-07-18 | Mitsui Eng & Shipbuild Co Ltd | Cooling structure for exhaust valve |
| JP2001504191A (en) * | 1996-11-12 | 2001-03-27 | ティーケー デザイン アーゲー | Apparatus for mixing air and fuel in a combustion chamber of an internal combustion engine |
| JP2010089154A (en) * | 2008-10-10 | 2010-04-22 | Toyota Motor Corp | Method and apparatus for manufacturing hollow article, and hollow article |
| CN204402608U (en) * | 2014-12-19 | 2015-06-17 | 重庆奇甫机械有限责任公司 | There is the valve that sodium chamber is rushed in taper |
| CN205503209U (en) * | 2015-10-30 | 2016-08-24 | 重庆奇甫机械有限责任公司 | Automatically cleaning formula is towards sodium valve with branch fluid channel |
-
2015
- 2015-10-30 CN CN201510719585.7A patent/CN105401997A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR817272A (en) * | 1936-05-09 | 1937-08-31 | Valve with self-rotating device for combustion or internal combustion engines | |
| JPH07180549A (en) * | 1993-12-24 | 1995-07-18 | Mitsui Eng & Shipbuild Co Ltd | Cooling structure for exhaust valve |
| JP2001504191A (en) * | 1996-11-12 | 2001-03-27 | ティーケー デザイン アーゲー | Apparatus for mixing air and fuel in a combustion chamber of an internal combustion engine |
| JP2010089154A (en) * | 2008-10-10 | 2010-04-22 | Toyota Motor Corp | Method and apparatus for manufacturing hollow article, and hollow article |
| CN204402608U (en) * | 2014-12-19 | 2015-06-17 | 重庆奇甫机械有限责任公司 | There is the valve that sodium chamber is rushed in taper |
| CN205503209U (en) * | 2015-10-30 | 2016-08-24 | 重庆奇甫机械有限责任公司 | Automatically cleaning formula is towards sodium valve with branch fluid channel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110621851A (en) * | 2017-05-17 | 2019-12-27 | 联邦摩高气门机构公司 | Poppet valve and method of manufacturing the same |
| CN110662889A (en) * | 2017-05-17 | 2020-01-07 | 联邦摩高气门机构公司 | Poppet valve and method of manufacturing the same |
| CN110662889B (en) * | 2017-05-17 | 2021-07-23 | 联邦摩高气门机构公司 | Poppet valve and method of manufacturing the same |
| CN110621851B (en) * | 2017-05-17 | 2021-08-06 | 联邦摩高气门机构公司 | Poppet valve and method of manufacturing the same |
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Application publication date: 20160316 |
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