CN203452960U - Lubricating nipple needle valve - Google Patents
Lubricating nipple needle valve Download PDFInfo
- Publication number
- CN203452960U CN203452960U CN201320486144.3U CN201320486144U CN203452960U CN 203452960 U CN203452960 U CN 203452960U CN 201320486144 U CN201320486144 U CN 201320486144U CN 203452960 U CN203452960 U CN 203452960U
- Authority
- CN
- China
- Prior art keywords
- fuel oil
- neck
- valve
- nozzle needle
- needle valve
- 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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Abstract
The utility model discloses a lubricating nipple needle valve which comprises a neck, a fuel oil flowing end, a throttling groove and a sealing conical face. The lubricating nipple needle valve is characterized in that a coating is arranged on the neck, the fuel oil flowing end is arranged at the bottom of the neck, the throttling groove is formed in the bottom of the fuel oil flowing end, the sealing conical face is arranged at the bottom of the throttling groove, the neck and the sealing conical face are provided with coatings, and a pressure reducing groove is formed in the fuel oil flowing end. The lubricating nipple needle valve has the advantages of being low in weight, good in reliability, large in oil spraying pressure, stable and wear resistant.
Description
Technical field
The utility model belongs to dynamic power machine.
Background technique
Existing oil nozzle needle-valve: 1, with foot piece, spring need pass through spring seat, dividing plate compresses needle-valve, easily causes impacting force off-axis when fuel pressure is excessive; 2, neck does not increase coating, very easily occurs because wearing and tearing cause recirculating oil quantity large, can not be for high-pressure fuel oil system, as common rail system etc.; 3, fuel oil circulation section is not processed and is subtracted stress annular groove, is unfavorable for when needle-valve is closed pressurized being out of shape, unfavorable to needle-valve reliability when fuel pressure is excessive especially; 4, the transition conical surface and sealing cone intersection are not processed and are removed throttling groove, will produce throttling, cause pressure chamber's pressure surge, reduce jet pressure; 5, sealing cone does not increase coating, within the time requiring will because of wearing and tearing cause poorly sealed, can not be for common rail system.6, be not suitable for high-pressure fuel oil system, as common rail system etc.
summary of the invention
The purpose of this utility model is to provide a kind of oil nozzle needle-valve to evade the deficiency of existing scheme, can be applicable to the more oil-fired system of high pressure, as the neck of common rail system has coating, sealing cone has coating, and fuel oil circulation end has the stress of subtracting, there is no foot piece, effectively control recirculating oil quantity, dilatation ability is strong, simple in structure, steadily reliable, a kind of oil nozzle needle-valve that jet pressure is large.
Technical solution of the present utility model is such, a kind of oil nozzle needle-valve, comprise neck, fuel oil circulation end, remove throttling groove, sealing cone, it is characterized in that under neck (1) be fuel oil circulation end (2), under fuel oil circulation end (2), be throttling groove (3), going under throttling groove (3) is sealing cone (4).
Neck (1) has coating.
Sealing cone (4) has coating.
Fuel oil circulation end (2) is processed with and subtracts stress groove, more than subtracting stress grooved ring external diameter one circle.
The beneficial effects of the utility model are: oil nozzle needle-valve is lightweight, and good reliability is more suitable for high-pressure fuel oil system, as common rail system.Oil nozzle needle valve structure is reasonable, and the configuration design of oil nozzle needle-valve is attractive in appearance.
Accompanying drawing explanation
Fig. 1 is prior art oil nozzle needle valve structure schematic diagram.
Fig. 2 is oil nozzle needle valve structure schematic diagram of the present utility model.
Fig. 3 is for removing throttling groove partial enlarged drawing technique of painting schematic diagram.
Mark in figure, neck (1), fuel oil circulation are held (2), are removed throttling groove (3), sealing cone (4).
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Embodiment 1, an oil nozzle needle-valve, comprises neck, fuel oil circulation end, removes throttling groove, sealing cone, it is characterized in that under neck (1) be fuel oil circulation end (2), under fuel oil circulation end (2), be throttling groove (3), going under throttling groove (3) is sealing cone (4).Neck (1) has coating.Sealing cone (4) has coating.Fuel oil circulation end (2) is processed with and subtracts stress groove, more than subtracting stress grooved ring external diameter one circle.
Claims (4)
1. an oil nozzle needle-valve, comprise neck, fuel oil circulation end, remove throttling groove, sealing cone, it is characterized in that under neck (1) be fuel oil circulation end (2), is throttling groove (3) under fuel oil circulation end (2), and going under throttling groove (3) is sealing cone (4).
2. according to a kind of oil nozzle needle-valve claimed in claim 1, it is characterized in that neck (1) has coating.
3. according to a kind of oil nozzle needle-valve claimed in claim 1, it is characterized in that sealing cone (4) has coating.
4. according to a kind of oil nozzle needle-valve claimed in claim 1, it is characterized in that fuel oil circulation end (2) is processed with and subtract stress groove, more than subtracting stress grooved ring external diameter one circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486144.3U CN203452960U (en) | 2013-08-10 | 2013-08-10 | Lubricating nipple needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486144.3U CN203452960U (en) | 2013-08-10 | 2013-08-10 | Lubricating nipple needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203452960U true CN203452960U (en) | 2014-02-26 |
Family
ID=50132842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320486144.3U Expired - Fee Related CN203452960U (en) | 2013-08-10 | 2013-08-10 | Lubricating nipple needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203452960U (en) |
-
2013
- 2013-08-10 CN CN201320486144.3U patent/CN203452960U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20180810 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |