CN102261273A - R neck spiral polishing air valve - Google Patents
R neck spiral polishing air valve Download PDFInfo
- Publication number
- CN102261273A CN102261273A CN201010180765XA CN201010180765A CN102261273A CN 102261273 A CN102261273 A CN 102261273A CN 201010180765X A CN201010180765X A CN 201010180765XA CN 201010180765 A CN201010180765 A CN 201010180765A CN 102261273 A CN102261273 A CN 102261273A
- Authority
- CN
- China
- Prior art keywords
- neck
- valve
- air valve
- cervix
- spiral
- 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.)
- Pending
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Classifications
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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
Abstract
The invention discloses an R neck spiral polishing air valve which is characterized in that an R neck is provided with spiral, anticlockwise and radial lines, wherein the direction of the lines and the airflow direction are consistent when the air valve is in work, the interval of the R neck spiral lines is less than 0.1mm, and the surface roughness Ra is below 0.5. The air valve with such a structure provided by the invention has the advantages of improving the airflow discharge resistance, reducing the carbon deposition, increasing the heat dissipation effect, reducing the stress concentration, improving the service life of the product and the like.
Description
Technical field
The present invention relates to a kind of engine valve, refer in particular to a kind of R cervix helical polishing valve.
Background technique
The processing mode that engine valve R neck adopts is generally turning processing or grinding, and its cutter trade is that the center is the concentric circle arrangement with the valve axis, and the airflow direction when working with valve differs.The valve that adopts turning processing or grinding is inconsistent because of turning tool marks and airflow direction in the using process meeting, the valve R neck roughness higher (generally reaching Ra3.2) of turning processing particularly, gas-flow resistance is bigger than normal when causing valve work, cause radiating effect poor, the valve carbon distribution is serious, reduce the valve usability, cause valve early failue.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of air-flow exhaust resistance that improves, and reduces carbon distribution, strengthens radiating effect, reduces the engine valve that stress is concentrated.
For achieving the above object, the invention provides a kind of R cervix helical polishing valve, comprise dish portion, R neck, bar portion, rod slot, rod end surface composition, the R neck has the counterclockwise radial lines of spiral, and airflow direction is consistent when ridge orientation and valve work.
Described R cervix helical polishing valve, R cervix helical inter-ridge distance is wide less than 0.1mm.
Described R cervix helical polishing valve is below the R neck surface roughness Ra0.5.
Beneficial effect of the present invention, because of valve R neck has the counterclockwise radial lines of spiral, airflow direction is consistent when ridge orientation and valve work, and therefore the air-flow of improvement exhaust resistance is arranged, and reduces carbon distribution, strengthens radiating effect, reduces the beneficial effect that stress is concentrated.
Description of drawings
Below in conjunction with accompanying drawing and mode of execution the present invention is described in further detail.
Fig. 1 is the side view of prior art valve.
Fig. 2 is the side view of R cervix helical polishing valve.
Fig. 3 is the plan view of prior art valve.
Fig. 4 is the plan view of R cervix helical polishing valve.
Wherein reference character be 1, dish portion; 2, R neck; 3, bar portion; 4, rod slot; 5, rod end surface; 6, airflow direction.
Embodiment
With reference to Fig. 2, a kind of R cervix helical polishing valve comprises dish portion 1, R neck 2, bar portion 3, rod slot 4, rod end surface 5 compositions, and the R neck has the counterclockwise radial lines of spiral, and airflow direction is consistent when ridge orientation and valve work.
Described R cervix helical polishing valve, R neck 2 spiral inter-ridge distances are wide less than 0.1mm.
Described R cervix helical polishing valve, R neck 2 surface roughness Ra are below 0.5.
Claims (3)
1. a R cervix helical polishing valve comprises dish portion, R neck, bar portion, rod slot, rod end surface composition, it is characterized in that the R neck has the counterclockwise radial lines of spiral.
2. R cervix helical polishing valve according to claim 1 is characterized in that distance is less than 0.1MM between the R cervix helical lines.
3. R cervix helical polishing valve according to claim 1 is characterized in that below the R neck surface roughness Ra0.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010180765XA CN102261273A (en) | 2010-05-24 | 2010-05-24 | R neck spiral polishing air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010180765XA CN102261273A (en) | 2010-05-24 | 2010-05-24 | R neck spiral polishing air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102261273A true CN102261273A (en) | 2011-11-30 |
Family
ID=45008081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010180765XA Pending CN102261273A (en) | 2010-05-24 | 2010-05-24 | R neck spiral polishing air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102261273A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108474275A (en) * | 2015-11-02 | 2018-08-31 | 洛里安·彼得鲁·基里拉 | Internal combustion engine intake valve |
| CN111188660A (en) * | 2018-11-15 | 2020-05-22 | 丰田自动车株式会社 | Internal combustion engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201025150Y (en) * | 2007-03-30 | 2008-02-20 | 上海柴油机股份有限公司 | A gas cylinder cover with single air supply valve for diesel engine |
| CN101249627A (en) * | 2008-04-08 | 2008-08-27 | 山东瑞丰汽车零部件有限公司 | Engines air valve cervix helical grinding technique |
| CN101699039A (en) * | 2009-01-23 | 2010-04-28 | 湖南天雁机械有限责任公司 | Breakage-resistance valve for engines |
| CN201705408U (en) * | 2010-05-24 | 2011-01-12 | 江苏欧尔特气门有限公司 | R neck helical polishing valve |
-
2010
- 2010-05-24 CN CN201010180765XA patent/CN102261273A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201025150Y (en) * | 2007-03-30 | 2008-02-20 | 上海柴油机股份有限公司 | A gas cylinder cover with single air supply valve for diesel engine |
| CN101249627A (en) * | 2008-04-08 | 2008-08-27 | 山东瑞丰汽车零部件有限公司 | Engines air valve cervix helical grinding technique |
| CN101699039A (en) * | 2009-01-23 | 2010-04-28 | 湖南天雁机械有限责任公司 | Breakage-resistance valve for engines |
| CN201705408U (en) * | 2010-05-24 | 2011-01-12 | 江苏欧尔特气门有限公司 | R neck helical polishing valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108474275A (en) * | 2015-11-02 | 2018-08-31 | 洛里安·彼得鲁·基里拉 | Internal combustion engine intake valve |
| CN108474275B (en) * | 2015-11-02 | 2020-10-02 | 洛里安·彼得鲁·基里拉 | Intake valve for internal combustion engine |
| CN111188660A (en) * | 2018-11-15 | 2020-05-22 | 丰田自动车株式会社 | Internal combustion engine |
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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 |
Application publication date: 20111130 |