CN101713307A - Engine valve structure - Google Patents
Engine valve structure Download PDFInfo
- Publication number
- CN101713307A CN101713307A CN200910191930A CN200910191930A CN101713307A CN 101713307 A CN101713307 A CN 101713307A CN 200910191930 A CN200910191930 A CN 200910191930A CN 200910191930 A CN200910191930 A CN 200910191930A CN 101713307 A CN101713307 A CN 101713307A
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- Prior art keywords
- valve
- conical surface
- head
- disc conical
- valve disc
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Abstract
The invention proposes an engine valve structure. On the premise of retaining a basic structure with three parts, namely a valve stem, a valve head and a valve disc conical surface, a machining platform is arranged between the valve disc conical surface and the R surface of the valve head, and smooth transition connection between the valve disc conical surface and the R surface of the valve head is performed through the machining platform. After the platform is arranged between the valve disc conical surface and the R surface of the valve head, the R surface of the valve head can be prevented from being touched when the valve disc conical surface is machined and causing increase in band width L of the valve disc conical surface, so that the band width L of the valve disc conical surface is controlled in a designed size range, and the thickness T of the valve head can be guaranteed to be in a reasonable range. Therefore, the valve structure has better sealing performance and can furthest keep the light weight of a valve when improving head rigidity, increasing heat capacity and helping to transfer heat, so that the overall structure of the valve is optimized.
Description
Technical field
The present invention relates to engine valve actuating mechanism, the air valve structure that is specifically related to motor improves.
Background technique
In the distribution device system of motor, valve is related to each side such as the sealing, cooling of passing capacity, the firing chamber of air-flow.And the valve retainer conical surface and valve head play an important role central, and the dish conical surface not only plays seal action, can also the part heat be taken away by the transmission of the dish conical surface, so the width of the dish conical surface (being called for short bandwidth, as L among Fig. 2) just can not be out in the cold.
Referring to Fig. 1 and Fig. 2, traditional engine valve, it is divided into valve stem 1, valve head 2 and the valve retainer conical surface 3 several sections, wherein the valve retainer conical surface 3 is directly to be connected with the R face of valve head 2, this does not run into the R face of valve head unavoidably when the processing valve retainer conical surface 3, thereby cause the bandwidth L of the valve retainer conical surface to increase, also influence head thickness T thus.
In the valve working procedure, the too small excessive sealing that all is unfavorable for valve of the bandwidth of the valve retainer conical surface 3, too small valve and the air valve seat ring sealing surface of also can causing of bandwidth reduces, and wearing and tearing increase the weight of, and are unfavorable for the transmission of heat; Valve retainer conical surface bandwidth is crossed ambassador and can be got the valve retainer conical surface again and can not drop in the conical surface of air valve seat ring fully, cause valve can not pulverize the impurity of the dish conical surface fully, get off for a long time to cause the local melting loss of the valve retainer conical surface, the wearing and tearing of the aggravation valve retainer conical surface and poorly sealed.And valve head thickness T increases, though can improve head rigidity, increases thermal capacity, is beneficial to the transmission heat, but can be unfavorable for lightweight, the speed up of valve.
Therefore, the control to valve retainer conical surface bandwidth L and valve head thickness T is the key of air valve structure design.
Summary of the invention
The present invention proposes a kind of improved engine valve structure, and purpose is effectively to control the width of the valve retainer conical surface and the thickness of valve head, to reach the integrally-built optimization of valve.
In order to realize the foregoing invention purpose, the engine valve structure that the present invention proposes is under the prerequisite that keeps valve stem, three part basic structures of the valve head gentle door dish conical surface, the valve retainer conical surface is increased machine add platform between the R face of valve head, add being connected smoothly between the R face that platform carries out the valve retainer conical surface and valve head by this machine.
After increasing this platform between the R face of the valve retainer conical surface and valve head, just avoid when the processing valve retainer conical surface, running into the R face of valve head, cause the increase of valve retainer conical surface bandwidth L, make valve retainer conical surface bandwidth L be controlled in the dimensional range of design, the thickness T that can guarantee the valve head thus again is also in reasonable range.
Therefore, the air valve structure after the improvement has better sealing, can increase thermal capacity improving head rigidity, is beneficial to when transmitting heat, and the lightweight that keeps valve to greatest extent is optimized the valve overall structure.
Description of drawings
Fig. 1 is the schematic representation of traditional air valve structure;
Fig. 2 is the local enlarged diagram of the A portion of Fig. 1;
Fig. 3 is the air valve structure schematic representation after improving;
The local enlarged diagram of the B portion of Fig. 4 Fig. 3.
Embodiment
Further specify air valve structure after the improvement below in conjunction with accompanying drawing:
Referring to Fig. 3 and Fig. 4, valve after the improvement at first has the basic structure of traditional valve, be that it has valve stem 1, valve head 2 and the valve retainer conical surface 3 three parts, its improvement is to increase machine at the valve retainer conical surface 3 between the R face of valve head 2 to add platform 4, machine adds the width h of platform 4 at 0.3 ± 0.1mm, and machine adds platform 4 and realizes being connected smoothly between the R face of the valve retainer conical surface 3 and valve head 2.After the increase machine adds platform 4, can guarantee the bandwidth L and the head thickness T of the valve retainer conical surface 3, make valve to the control of the thickness T of the bandwidth L of the valve retainer conical surface and valve head significantly better than before improving.
Claims (1)
1. engine valve structure, it has valve stem (1), valve head (2) and (3) three parts of the valve retainer conical surface;
It is characterized in that: be connected with machine at the described valve retainer conical surface (3) between the R face of valve head (2) and add platform (4), machine adds the scope of width h of platform (4) at 0.3 ± 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910191930A CN101713307A (en) | 2009-12-15 | 2009-12-15 | Engine valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910191930A CN101713307A (en) | 2009-12-15 | 2009-12-15 | Engine valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101713307A true CN101713307A (en) | 2010-05-26 |
Family
ID=42417255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910191930A Pending CN101713307A (en) | 2009-12-15 | 2009-12-15 | Engine valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101713307A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298581A (en) * | 2015-10-30 | 2016-02-03 | 重庆奇甫机械有限责任公司 | Spiral flow-guide efficient heat exchange type sodium charging air valve |
| CN108266244A (en) * | 2016-12-27 | 2018-07-10 | 本田技研工业株式会社 | The inlet valve of internal combustion engine |
| CN112846243A (en) * | 2021-01-29 | 2021-05-28 | 怀集业顺科技有限公司 | Multi-positioning composite machining method for engine valve head |
-
2009
- 2009-12-15 CN CN200910191930A patent/CN101713307A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298581A (en) * | 2015-10-30 | 2016-02-03 | 重庆奇甫机械有限责任公司 | Spiral flow-guide efficient heat exchange type sodium charging air valve |
| CN108266244A (en) * | 2016-12-27 | 2018-07-10 | 本田技研工业株式会社 | The inlet valve of internal combustion engine |
| CN112846243A (en) * | 2021-01-29 | 2021-05-28 | 怀集业顺科技有限公司 | Multi-positioning composite machining method for engine valve head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100526 |