CN202900503U - Novel aperture atomizer for diesel engine - Google Patents
Novel aperture atomizer for diesel engine Download PDFInfo
- Publication number
- CN202900503U CN202900503U CN 201220656679 CN201220656679U CN202900503U CN 202900503 U CN202900503 U CN 202900503U CN 201220656679 CN201220656679 CN 201220656679 CN 201220656679 U CN201220656679 U CN 201220656679U CN 202900503 U CN202900503 U CN 202900503U
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- CN
- China
- Prior art keywords
- seat surface
- needle
- needle valve
- valve body
- atomizer
- 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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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a novel aperture atomizer for a diesel engine. The novel aperture atomizer comprises a needle valve body and a needle valve. An oil inlet channel communicated with an inner cavity of the needle valve body is formed in the upper end of the needle valve body. Oil jets are formed in the lower end of the needle valve body. An inner seat surface with a tapered structure is arranged at the bottom of the inner cavity of the needle valve body. A needle valve seat surface matched with the inner seat surface is arranged at the lower end of the needle valve. An annular groove is formed in the needle valve seat surface. A balance tank with an annular groove structure is designed below the needle valve seat surface, the space of the inner seat surface is limited, the balance tank cannot be large, and after the balance tank is additionally arranged, fuel oil can flow out through the balance tank to form rotational flow, so that the cavitation of the inner seat surface is avoided, the inner seat surface and the oil jets are protected, the stability of the sealing seat surface of the aperture atomizer is also improved, the stability of fuel oil injection is improved, and the performance and the reliability of the aperture atomizer are further improved.
Description
Technical field
The utility model relates to a kind of oil nozzle, especially a kind of Novel diesel engine hole type nozzle.
Background technique
At present, diesel engine hole-type oil nozzle comprises needle-valve body and joins secondary needle-valve that it is the needle-valve guide surface that its top cooperates the cylndrical surface, and a sealing cone seat surface is arranged at the bottom, and the middle part toroidal cavity is communicated with oil input channel, and the seat surface bottom is the pressure chamber related with spray orifice.This injector valve quality is little, and the guide cylinder face is short, and sealing cone is away from the guide cylinder face, thus the stability when having influence on needle-valve and taking a seat.
The model utility content
The utility model will solve the shortcoming of above-mentioned prior art, and a kind of Novel diesel engine hole type nozzle is provided, and has improved the stability of oil nozzle sealed seat surface.
The utility model solves the technological scheme that its technical problem adopts: this Novel diesel engine hole type nozzle, comprise needle-valve body and needle-valve, the upper end of needle-valve body is provided with the oil inlet passage that is communicated with the needle-valve body inner chamber, the lower end of needle-valve body is provided with nozzle opening, wherein the needle-valve body intracavity bottom is the interior seat surface of cone structure, the needle valve seat surface that the lower end of needle-valve and interior seat surface are complementary, needle valve seat surface is provided with annular groove.
Wherein nozzle opening is distributed in interior seat surface both sides symmetrically.
The effect that the utility model is useful is: the utility model needle valve seat surface below is designed with a ringwise compensating groove of groove structure; because the limited space of interior seat surface; compensating groove can not be too large; after increasing a compensating groove; fuel oil flows out through compensating groove; can form an eddy flow; avoided the cavitation pitting at interior seat surface place to produce; interior seat surface and nozzle opening have been protected; also improved in addition the stability of oil nozzle sealed seat surface; increase fuel-injected stability, thereby improved performance and the reliability of oil nozzle.
Description of drawings
Fig. 1 is the sectional view of needle-valve body in the utility model;
Fig. 2 is the sectional view of needle-valve in the utility model;
Fig. 3 is the enlarged diagram of A part among Fig. 2;
Fig. 4 is the integrally-built sectional view of the utility model;
Fig. 5 is the enlarged diagram of B part among Fig. 4.
Description of reference numerals: needle-valve body 1, oil inlet passage 1-1, needle-valve body inner chamber 2, interior seat surface 2-1, needle-valve 3, needle valve seat surface 3-1, annular groove 4, nozzle opening 5.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
With reference to accompanying drawing: this Novel diesel engine hole type nozzle, comprise needle-valve body 1 and needle-valve 3, the upper end of needle-valve body 1 is provided with the oil inlet passage 1-1 that is communicated with needle-valve body inner chamber 2, the lower end of needle-valve body 1 is provided with nozzle opening 5, wherein needle-valve body inner chamber 2 bottoms are the interior seat surface 2-1 of cone structure, the needle valve seat surface 3-1 that the lower end of needle-valve 3 and interior seat surface 2-1 are complementary, needle valve seat surface 3-1 is provided with annular groove 4.Wherein nozzle opening 5 is distributed in interior seat surface 2-1 both sides symmetrically.
The utility model needle valve seat surface 3-1 below is designed with a ringwise compensating groove of groove structure; because the limited space of interior seat surface 2-1; compensating groove can not be too large, increase a compensating groove after, fuel oil flows out through compensating groove; can form an eddy flow; avoid the cavitation pitting at interior seat surface 2-1 place to produce, protected interior seat surface 2-1 and nozzle opening 5, also improved in addition the stability of oil nozzle sealed seat surface; increase fuel-injected stability, thereby improved performance and the reliability of oil nozzle.
Although the utility model illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.
Claims (2)
1. Novel diesel engine hole type nozzle, comprise needle-valve body (1) and needle-valve (3), the upper end of needle-valve body (1) is provided with the oil inlet passage (1-1) that is communicated with needle-valve body inner chamber (2), the lower end of needle-valve body (1) is provided with nozzle opening (5), it is characterized in that: described needle-valve body inner chamber (2) bottom is the interior seat surface (2-1) of cone structure, the needle valve seat surface (3-1) that the lower end of needle-valve (3) and interior seat surface (2-1) are complementary, needle valve seat surface (3-1) is provided with annular groove (4).
2. Novel diesel engine hole type nozzle according to claim 1, it is characterized in that: described nozzle opening (5) is distributed in interior seat surface (2-1) both sides symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656679 CN202900503U (en) | 2012-12-04 | 2012-12-04 | Novel aperture atomizer for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656679 CN202900503U (en) | 2012-12-04 | 2012-12-04 | Novel aperture atomizer for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202900503U true CN202900503U (en) | 2013-04-24 |
Family
ID=48121182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220656679 Expired - Fee Related CN202900503U (en) | 2012-12-04 | 2012-12-04 | Novel aperture atomizer for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202900503U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523222A (en) * | 2017-01-18 | 2017-03-22 | 哈尔滨工程大学 | Double-way oil inlet resonance pore plate type electronic oil injector with engraved groove |
| CN106545446A (en) * | 2017-01-18 | 2017-03-29 | 哈尔滨工程大学 | A kind of two-way feeding type electric-controlled fuel injector with ditch |
| CN106545444A (en) * | 2017-01-18 | 2017-03-29 | 哈尔滨工程大学 | A kind of two-way oil-feed bypass type electric-controlled fuel injector with ditch |
| CN106593722A (en) * | 2017-01-18 | 2017-04-26 | 哈尔滨工程大学 | Resonance hole-plate type electronic control fuel injector with carved grooves |
| CN106593721A (en) * | 2017-01-18 | 2017-04-26 | 哈尔滨工程大学 | Double-path oil feeding resonance bypass type electrically controlled oil sprayer with engraved groove |
| CN106640454A (en) * | 2017-01-18 | 2017-05-10 | 哈尔滨工程大学 | Double-path oil feeding hole plate type electric control oil sprayer with engraved groove |
| CN106704065A (en) * | 2017-01-18 | 2017-05-24 | 哈尔滨工程大学 | Resonant type electronic control fuel injector with engraved groove |
| CN106762283A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of two-way oil-feed resonant mode electric-controlled fuel injector with ditch |
| CN106762280A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of bypass type electric-controlled fuel injector with ditch |
| CN106762284A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of resonance bypass type electric-controlled fuel injector with ditch |
| CN106762277A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of pressure accumulation orifice-plate type electric-controlled fuel injector with ditch |
| CN107461271A (en) * | 2017-09-12 | 2017-12-12 | 重庆潍柴发动机有限公司 | Cylinder head |
| CN109339965A (en) * | 2018-12-19 | 2019-02-15 | 重庆红江机械有限责任公司 | A kind of pressure-control valve for common rail system |
-
2012
- 2012-12-04 CN CN 201220656679 patent/CN202900503U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704065A (en) * | 2017-01-18 | 2017-05-24 | 哈尔滨工程大学 | Resonant type electronic control fuel injector with engraved groove |
| CN106762280A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of bypass type electric-controlled fuel injector with ditch |
| CN106545444A (en) * | 2017-01-18 | 2017-03-29 | 哈尔滨工程大学 | A kind of two-way oil-feed bypass type electric-controlled fuel injector with ditch |
| CN106593722A (en) * | 2017-01-18 | 2017-04-26 | 哈尔滨工程大学 | Resonance hole-plate type electronic control fuel injector with carved grooves |
| CN106593721A (en) * | 2017-01-18 | 2017-04-26 | 哈尔滨工程大学 | Double-path oil feeding resonance bypass type electrically controlled oil sprayer with engraved groove |
| CN106640454A (en) * | 2017-01-18 | 2017-05-10 | 哈尔滨工程大学 | Double-path oil feeding hole plate type electric control oil sprayer with engraved groove |
| CN106545446A (en) * | 2017-01-18 | 2017-03-29 | 哈尔滨工程大学 | A kind of two-way feeding type electric-controlled fuel injector with ditch |
| CN106762283A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of two-way oil-feed resonant mode electric-controlled fuel injector with ditch |
| CN106523222A (en) * | 2017-01-18 | 2017-03-22 | 哈尔滨工程大学 | Double-way oil inlet resonance pore plate type electronic oil injector with engraved groove |
| CN106762284A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of resonance bypass type electric-controlled fuel injector with ditch |
| CN106762277A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of pressure accumulation orifice-plate type electric-controlled fuel injector with ditch |
| CN106545444B (en) * | 2017-01-18 | 2023-04-28 | 哈尔滨工程大学 | Double-path oil inlet bypass type electric control oil sprayer with grooves |
| CN107461271B (en) * | 2017-09-12 | 2023-03-24 | 重庆潍柴发动机有限公司 | Cylinder head |
| CN107461271A (en) * | 2017-09-12 | 2017-12-12 | 重庆潍柴发动机有限公司 | Cylinder head |
| CN109339965A (en) * | 2018-12-19 | 2019-02-15 | 重庆红江机械有限责任公司 | A kind of pressure-control valve for common rail system |
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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: 20130424 Termination date: 20151204 |
|
| EXPY | Termination of patent right or utility model |