CN2186307Y - Needle valve couple-piece of injector - Google Patents
Needle valve couple-piece of injector Download PDFInfo
- Publication number
- CN2186307Y CN2186307Y CN 93239610 CN93239610U CN2186307Y CN 2186307 Y CN2186307 Y CN 2186307Y CN 93239610 CN93239610 CN 93239610 CN 93239610 U CN93239610 U CN 93239610U CN 2186307 Y CN2186307 Y CN 2186307Y
- Authority
- CN
- China
- Prior art keywords
- needle
- needle valve
- valve
- valve body
- injector
- 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 - Fee Related
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- Lift Valve (AREA)
Abstract
The utility model relates to a needle valve couple-piece of injector for a diesel oil system, which comprises a needle valve 2 and a needle valve body 1. The head 3 of the needle valve is spherical and is intersected with the conic surface of the needle valve body. Although the needle valve and the shaft line of the needle valve body have deflections, the needle valve and the shaft line of the needle valve body have sealing functions to enhance a sealing effect and extend a service life. The spherical head of the needle valve has the advantages of simple structure and easy manufacture.
Description
The utility model relates to the fueling injection equipment of diesel fuel system, particularly a kind of fuel injector needle valve coupling.
Existing diesel injector generally adopts the taper pintle nozzle match-ing parts, the face that is the potted line place of needle-valve is the conical surface, the cone match of the needle-valve body of about 1 degree of cone angle, form potted line by the angular difference of the two, thus potted line always in the conical surface upper edge of needle-valve or needle-valve body, potted line is the boundary line of two conical surfaces, so quality can not guarantee, disalignment slightly, i.e. blow-by, working life is shorter.
The purpose of this utility model designs a kind of simple in structure exactly, good sealing effect, the fuel injector needle valve coupling of long service life.
The purpose of this utility model is realized by following structure: the fuel injector needle valve coupling includes needle-valve and needle-valve body, and its major character is: the needle-valve head intersects for the spherical conical surface with needle-valve body.
The utility model is because the needle-valve head is a ball-type, thus when respectively having deflection, needle-valve axis and needle-valve body axis also can seal, thereby sealing effect is better, long service life, and simple in structure, easy manufacturing.
Description of drawings of the present utility model is as follows:
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1, needle-valve body, 2, needle-valve, 3, the needle-valve head.
Below in conjunction with drawings and Examples the utility model is further described:
As shown in Figure 1, the utility model includes needle-valve 2 and needle-valve body 1, and needle-valve head 3 is spherical, and crossing with the conical surface of needle-valve body; For further improving sealing effect, prolong its working life, the intersection line of needle-valve body and needle-valve head is preferably in the middle part of the needle-valve spherical head middle part and the needle-valve body conical surface.
Claims (2)
1, a kind of fuel injector needle valve coupling, it includes needle-valve (2) and needle-valve body (1), it is characterized in that: needle-valve head (3) is for spherical, and is crossing with the conical surface of needle-valve body.
2, fuel injector needle valve coupling as claimed in claim 1 is characterized in that: the intersection line of needle-valve body and needle-valve head is at the middle part of the needle-valve spherical head and the needle-valve body conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93239610 CN2186307Y (en) | 1993-11-20 | 1993-11-20 | Needle valve couple-piece of injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93239610 CN2186307Y (en) | 1993-11-20 | 1993-11-20 | Needle valve couple-piece of injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2186307Y true CN2186307Y (en) | 1994-12-28 |
Family
ID=33814097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93239610 Expired - Fee Related CN2186307Y (en) | 1993-11-20 | 1993-11-20 | Needle valve couple-piece of injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2186307Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012796B (en) * | 2006-01-31 | 2011-10-05 | 曼柴油机欧洲股份公司 | Fuel injector |
| CN104033304A (en) * | 2014-06-30 | 2014-09-10 | 福建省莆田市中涵机动力有限公司 | Integral type control ball valve for common-rail oil sprayer |
| CN104131925A (en) * | 2014-06-30 | 2014-11-05 | 福建省莆田市中涵机动力有限公司 | Crown ball control valve of high-pressure common-rail oil injector |
| CN105240178A (en) * | 2015-10-13 | 2016-01-13 | 星弧涂层新材料科技（苏州）股份有限公司 | Wear-resisting control valve for fuel injection system and manufacturing method thereof |
-
1993
- 1993-11-20 CN CN 93239610 patent/CN2186307Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101012796B (en) * | 2006-01-31 | 2011-10-05 | 曼柴油机欧洲股份公司 | Fuel injector |
| CN104033304A (en) * | 2014-06-30 | 2014-09-10 | 福建省莆田市中涵机动力有限公司 | Integral type control ball valve for common-rail oil sprayer |
| CN104131925A (en) * | 2014-06-30 | 2014-11-05 | 福建省莆田市中涵机动力有限公司 | Crown ball control valve of high-pressure common-rail oil injector |
| CN104033304B (en) * | 2014-06-30 | 2016-05-18 | 福建省莆田市中涵机动力有限公司 | Common-rail injector monoblock type control ball valve |
| CN104131925B (en) * | 2014-06-30 | 2017-05-31 | 莆田市宏业精密机械有限公司 | High pressure common rail injector hat ball control valve |
| CN105240178A (en) * | 2015-10-13 | 2016-01-13 | 星弧涂层新材料科技（苏州）股份有限公司 | Wear-resisting control valve for fuel injection system and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |