CN201092922Y - Whirlpool umbrella spray injection nozzle matching parts - Google Patents
Whirlpool umbrella spray injection nozzle matching parts Download PDFInfo
- Publication number
- CN201092922Y CN201092922Y CNU2007201390448U CN200720139044U CN201092922Y CN 201092922 Y CN201092922 Y CN 201092922Y CN U2007201390448 U CNU2007201390448 U CN U2007201390448U CN 200720139044 U CN200720139044 U CN 200720139044U CN 201092922 Y CN201092922 Y CN 201092922Y
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- oil
- nozzle
- vortex
- cylindrical
- dent
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Abstract
The utility model provides a vortex conical spray oil injection nozzle matching part and relates to the field of a diesel injection system. The vortex conical spray oil injection nozzle matching part is characterized in that a nozzle (9) is arranged on the oil injection end of an oil injection nozzle valve (1), a jet orifice (10) is arranged on the front end of the nozzle (9), a plane dent (7) which is concentric with an ex-circle (3) is arranged on the front end surface (6) of the oil injection end of the oil injection nozzle valve (1), and symmetrical tangential oil-feed tanks (8) are arranged on the ex-circle (3) and the dent wall of the plane dent (7). When in work, a needle valve (11) in the oil injection nozzle valve (1) is opened, high pressure fuel oil passes through an oil injection nozzle pressure chamber (5) and a radial hole (4) of the ex-circle (3) and enters into the symmetrical tangential oil-feed tanks (8) which are arranged along the dent wall of the plane dent (7) through a middle hole of the nozzle (9) and annular space of the ex-circle (3), strong vortex motion is formed in the plane dent (7), vortex conical spray oil beams are produced through the jet orifice (10) which is on the front end of the nozzle (9), vortex umbrella injection is realized, which provides conditions for solving the discharging problem, and the matching part has simple and rational design, which is convenient for executing and suitable for extending.
Description
Technical field
The utility model relates to the diesel injection system field, relates to a kind of vortex umbrella spray injector nozzle matching parts particularly.
Background technique
According to the diesel combustion theory, the principal element that influences the direct injection combustion process is fuel oil and Air mixing quality, and the various physical propertys such as space distribution, particle size distribution and turbulent diffusion process thereof of fuel spray in the firing chamber directly have influence on combustion process.The injector nozzle matching parts that present diesel engine with direct injection uses is elongated cellular type injector nozzle matching parts, and its injection is solid column oil bundle, and spray cone angle is less, and oily intrafascicular heart oil droplet is very intensive, and oil bundle penetration distance is very long, and fuel oil sprays far ability spallation and nebulizes.Because oily intrafascicular heart oil droplet is intensive, and particle diameter is bigger, form " rich oil district " relatively, cause soot to form the speed height, and cause the burning room temperature to raise rapidly, more easily form harmful matters such as CO, NO.And long the causing of its oily beam journey touched wall, and fuel oil is deposited on the lower chamber wall of temperature, is to produce partial combustion and HC, the major reason that CO exceeds standard and discharges.
Summary of the invention
The purpose of this utility model is a kind of vortex umbrella spray injector nozzle matching parts that provides in order to address the above problem, it strengthens its atomizing ability by structural design, the formed solid-cone oil of the elongated cellular type injector nozzle matching parts bundle structure of using with present diesel engine with direct injection is different, it is the structure that forms strong vortex motion and restraint by means of the spray orifice generation vortex umbrella shape oil of nozzle in the preceding Transverse plane pit of valve body by means of injection pressure, thereby the area of contact of fuel and air is increased, atomizing effect will be desirable more, burning can be more abundant, fuel economy also will increase, and improve discharging, be hopeful to alleviate the contradiction between particulate emission and the NO discharging.
The utility model is that the front end at the injector nozzle matching parts valve body is provided with and makes fuel oil form the structure that vortex motion produces vortex umbrella shape oil bundle, its task is to realize like this, oil spout end at oil nozzle valve body 1 is provided with cylindrical 2 and cylindrical 3, cylindrical 2 and cylindrical 3 are provided with nozzle 9, the front end of nozzle 9 is provided with spray orifice 10, the mesopore of nozzle 9 and cylindrical 2 interference fit, with cylindrical 3 Spielpassung, cylindrical 3 is provided with radial hole 4, radial hole 4 connects with oil nozzle pressure chamber 5, the oil spout end front-end face 6 of oil nozzle valve body 1 is provided with the plane pit 7 concentric with cylindrical 3, and cylindrical 3 and the hole wall of plane pit 7 are provided with the tangential oil-feed tank 8 of symmetry.By the application of said structure, realize the injection of vortex umbrella shape, the area of contact of fuel and air is increased, atomizing effect will be desirable more, and the burning meeting is more abundant, provides condition for solving emission problem.
Description of drawings
Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof
Fig. 1 is a plan view of the present utility model.
Fig. 2 is a sectional drawing of the present utility model.
Embodiment
Describe concrete structure and the use condition thereof that the utility model proposes in detail below in conjunction with Fig. 1, Fig. 2.
This vortex umbrella spray injector nozzle matching parts, oil spout end at oil nozzle valve body 1 is provided with cylindrical 2 and cylindrical 3, the mesopore of nozzle 9 and cylindrical 2 interference fit, with cylindrical 3 Spielpassung, the oil spout end front-end face plane sealing of the mesopore interior edge face of nozzle 9 and oil nozzle valve body 1, during work, needle-valve 11 in the oil nozzle valve body 1 is opened, high pressure fuel is by oil nozzle pressure chamber 5 and radial hole 4, enter along the tangential oil-feed tank 8 of the symmetry that is provided with on the pit 7 hole walls through the annular space of nozzle 9 with cylindrical 3, in plane pit 7, form strong vortex motion, produce the umbrella spray shape oil bundle of vortex by the spray orifice 10 of nozzle 9 front ends, realize the injection of vortex umbrella shape, its simplicity of design, rationally, be convenient to implement, be suitable for popularization.
Claims (3)
1. a vortex umbrella sprays injector nozzle matching parts, it is characterized in that being provided with cylindrical (2) and cylindrical (3) at the oil spout end of oil nozzle valve body (1), cylindrical (2) and cylindrical (3) are provided with nozzle (9), the mesopore of nozzle (9) and cylindrical (2) interference fit, with cylindrical (3) Spielpassung, the front end of nozzle (9) is provided with spray orifice (10).
2. according to the described a kind of vortex umbrella spray injector nozzle matching parts of claim 1, it is characterized in that being provided with radial hole (4) on cylindrical (3), radial hole (4) connects with oil nozzle pressure chamber (5).
3. according to the described a kind of vortex umbrella spray injector nozzle matching parts of claim 1, it is characterized in that being provided with on the oil spout end front-end face (6) of oil nozzle valve body (1) the plane pit (7) concentric with cylindrical (3), cylindrical (3) is provided with symmetrical tangential oil-feed tank (8) with the hole wall of plane pit (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201390448U CN201092922Y (en) | 2007-08-26 | 2007-08-26 | Whirlpool umbrella spray injection nozzle matching parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201390448U CN201092922Y (en) | 2007-08-26 | 2007-08-26 | Whirlpool umbrella spray injection nozzle matching parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201092922Y true CN201092922Y (en) | 2008-07-30 |
Family
ID=39900888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201390448U Expired - Fee Related CN201092922Y (en) | 2007-08-26 | 2007-08-26 | Whirlpool umbrella spray injection nozzle matching parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201092922Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734030A (en) * | 2011-04-01 | 2012-10-17 | 日立汽车系统株式会社 | Fuel injection valve |
| CN103397964A (en) * | 2013-08-19 | 2013-11-20 | 王抗美 | Centrifugal conical-spray oil nozzle |
-
2007
- 2007-08-26 CN CNU2007201390448U patent/CN201092922Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734030A (en) * | 2011-04-01 | 2012-10-17 | 日立汽车系统株式会社 | Fuel injection valve |
| CN102734030B (en) * | 2011-04-01 | 2016-06-29 | 日立汽车系统株式会社 | Fuelinjection nozzle |
| CN103397964A (en) * | 2013-08-19 | 2013-11-20 | 王抗美 | Centrifugal conical-spray oil nozzle |
| CN103397964B (en) * | 2013-08-19 | 2016-06-29 | 王抗美 | Centrifugal conical-spray oil nozzle |
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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: 20080730 Termination date: 20150826 |
|
| EXPY | Termination of patent right or utility model |