CN202483753U - Valve core structure with guide sleeve for vacuum electromagnetic adjusting device - Google Patents
Valve core structure with guide sleeve for vacuum electromagnetic adjusting device Download PDFInfo
- Publication number
- CN202483753U CN202483753U CN2012201164471U CN201220116447U CN202483753U CN 202483753 U CN202483753 U CN 202483753U CN 2012201164471 U CN2012201164471 U CN 2012201164471U CN 201220116447 U CN201220116447 U CN 201220116447U CN 202483753 U CN202483753 U CN 202483753U
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- CN
- China
- Prior art keywords
- spring
- valve core
- guide sleeve
- sealing rubber
- endoporus
- 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 - Lifetime
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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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- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a valve core structure with a guide sleeve for a vacuum electromagnetic adjusting device. The valve core structure comprises a valve core, wherein an inner hole, which is a straight-wall hole, is formed above the valve core and is internally provided with a baffle, sealing rubber and a spring; the guide valve is arranged at the bottom of the inner hole; the spring is arranged above the guide sleeve and is tapered, and the large end of the tapered spring is arranged downwards and is in interference fit with the guide sleeve; the sealing rubber is arranged above the spring, and an outer ring of the sealing rubber is arranged in an inner cavity of the guide sleeve; the baffle is arranged above the sealing rubber; the outer diameter of the baffle and the inner hole are in interference fit; and the upper end face of the baffle is leveled with the upper plane of the inner hole. The sealing rubber and the straight spring in the previous structure are directly contacted with the inner hole of the valve core, and the guide sleeve is added on the valve core structure, so that friction force among the sealing rubber, the spring and the valve core is reduced; the straight spring is changed into the tapered spring, so that the friction between the straight spring and the interior of the valve core is reduced, and the shaking of the straight spring in the inner hole of the valve core is relieved; and therefore, the valve core structure solves the problem of the large friction force of the valve core in a movement process and reduces the possibility of invalidity of the sealing rubber caused by long-time movement of the valve core.
Description
Technical field
The utility model relates to the valve opening controlling device in a kind of engine exhaust emission gas recirculation system (EGR), especially a kind of vacuum electromagnetic regulator.
Background technique
Vacuum electromagnetic regulator is as playing the effect of regulating the EGR gas flow in the engine exhaust-gas recirculating system (egr system).
At present, the spool of the high-speed motion of vacuum electromagnetic regulator in the course of the work, caulking gum is in the spool bore domestic demand otherwise stop ground motion up and down, the spool endoporus adopts the different step-like cylindrical hole of diameter in the original structure; As shown in Figure 1, caulking gum cooperates with endoporus 5, and straight spring cooperates with endoporus 6; Because what spool adopted is metallic material, inner bore surface roughness can't reach very high precision, therefore; Caulking gum and spring are in Frotteurism with the metal surface of spool, under this situation all the time in the process that moves up and down; Not only cause the motion of caulking gum and spring not smooth, and owing to work long hours, caulking gum also can wear out failure.
Summary of the invention
The purpose of the utility model is to overcome the deficiency that exists in the existing valve core structure, provides a kind of and can improve the valve core structure that vacuum electromagnetic regulator performance, the interior caulking gum of solution spool and spring motion clamping stagnation cause vacuum electromagnetic regulator decreased performance and failure problems.
The technological scheme of the utility model is:
A kind of vacuum electromagnetic regulator valve core structure of tape guide cover comprises that spool, spool top are provided with and are provided with block, caulking gum, spring in endoporus, the endoporus, and the endoporus of spool is straight cinclides; The bottom of endoporus is provided with guide sleeve; The top of guide sleeve is provided with spring, and spring is a volute spring, and the big end of volute spring down; And with guide sleeve be interference fit; Caulking gum is arranged at the top of spring, and the outer ring of caulking gum is arranged on the inner chamber of guide sleeve, and block is arranged on the top of caulking gum.
The external diameter of block and endoporus are interference fit, the last plane flush of the upper-end surface of block and endoporus.
Beneficial effect: the utility model directly contacts caulking gum in the original structure with straight spring with the spool endoporus; Change into and increased guide sleeve, reduced the frictional force of caulking gum and spring and spool, straight spring is bored spring instead; Solved the friction of straight spring and valve core inside in the original structure; And straight spring rocking in the spool endoporus, can solve spool in the big problem of the frictional force of movement process, reduced the caulking gum Problem of Failure that the spool prolonged exercise causes.
Description of drawings
Fig. 1 is a vacuum electromagnetic regulator valve core structure schematic representation of the prior art;
Fig. 2 is the structural representation of the utility model.
Among the figure: 1-block, 2-caulking gum, 3-spring, 4-guide sleeve, 5-spool, 6-endoporus.
Embodiment
Below in conjunction with concrete accompanying drawing the utility model is described further.
The vacuum electromagnetic regulator valve core structure of a kind of tape guide cover comprises that spool 5, spool 5 tops are provided with to be provided with block 1, caulking gum 2, spring 3 in endoporus 6, the endoporus 6 that the endoporus 6 of spool is straight cinclides; The bottom of endoporus 6 is provided with guide sleeve 4; The top of guide sleeve 4 is provided with spring 3, and spring 3 is a volute spring, and the big end of volute spring down; And with guide sleeve 4 be interference fit; Caulking gum 2 is arranged at the top of spring 3, and the outer ring of caulking gum 2 is arranged on the inner chamber of guide sleeve 4, and block 1 is arranged on the top of caulking gum 2.
The external diameter of block 1 and endoporus 6 are interference fit, the last plane flush of the upper-end surface of block 1 and endoporus 6.
As shown in the figure: the awl spring big end down, with guide sleeve 4 be interference fit, the assurance spring about 3 do not rock, caulking gum 2 is positioned on the spring 3 and by block 1 and is pressed in guide sleeve 4 effective travels.
Increased guide sleeve 4 on the original basis; Change straight spring into the awl spring, as shown in Figure 2, the materials processing that guide sleeve 4 usefulness have self-lubricating property forms; Caulking gum 2 after the assembling all is in the effective travel scope of guide sleeve 4 with the awl spring; Because what this valve core structure adopted is the awl spring, the friction between the metallic walls in the process that moves up and down, can not occur, caulking gum 2 in the process that moves up and down all the time in the effective travel scope of guide sleeve 4; Because what guide sleeve 4 adopted is self lubricating material; Therefore caulking gum 2 is very little with the frictional force of guide sleeve 4, and the potential risk that also can not existing works long hours causes caulking gum 2 to lose efficacy causes vacuum electromagnetic regulator decreased performance or inefficacy.Vacuum governor decreased performance or fault that vacuum governor lost efficacy and causes because of spool have been solved.
Claims (2)
1. the vacuum electromagnetic regulator valve core structure of tape guide cover; Comprise that spool (5), spool (5) top are provided with and are provided with block (1), caulking gum (2), spring (3) in endoporus (6), the endoporus (6); It is characterized in that: the endoporus of said spool (6) is straight cinclides, and the bottom of endoporus (6) is provided with guide sleeve (4), and the top of guide sleeve (4) is provided with spring (3); Said spring (3) is a volute spring; The big end of volute spring down, and with guide sleeve (4) be interference fit, caulking gum (2) is arranged at the top of spring (3); The outer ring of caulking gum (2) is arranged on the inner chamber of guide sleeve (4), and block (1) is arranged on the top of caulking gum (2).
2. the vacuum electromagnetic regulator valve core structure of tape guide cover according to claim 1 is characterized in that: the external diameter of said block (1) and endoporus (6) are interference fit, the last plane flush of the upper-end surface of block (1) and endoporus (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201164471U CN202483753U (en) | 2012-03-26 | 2012-03-26 | Valve core structure with guide sleeve for vacuum electromagnetic adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201164471U CN202483753U (en) | 2012-03-26 | 2012-03-26 | Valve core structure with guide sleeve for vacuum electromagnetic adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202483753U true CN202483753U (en) | 2012-10-10 |
Family
ID=46958180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201164471U Expired - Lifetime CN202483753U (en) | 2012-03-26 | 2012-03-26 | Valve core structure with guide sleeve for vacuum electromagnetic adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202483753U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562372A (en) * | 2012-03-26 | 2012-07-11 | 无锡隆盛科技有限公司 | Valve core structure of vacuum electromagnetic regulator with guide sleeve |
-
2012
- 2012-03-26 CN CN2012201164471U patent/CN202483753U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562372A (en) * | 2012-03-26 | 2012-07-11 | 无锡隆盛科技有限公司 | Valve core structure of vacuum electromagnetic regulator with guide sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
|
| CX01 | Expiry of patent term |