CN203702421U - Improved disturbance nozzle fuel injector - Google Patents
Improved disturbance nozzle fuel injector Download PDFInfo
- Publication number
- CN203702421U CN203702421U CN201420113120.8U CN201420113120U CN203702421U CN 203702421 U CN203702421 U CN 203702421U CN 201420113120 U CN201420113120 U CN 201420113120U CN 203702421 U CN203702421 U CN 203702421U
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- CN
- China
- Prior art keywords
- sub
- main jet
- spray orifice
- valve body
- needle
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- Expired - Fee Related
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Abstract
The utility model discloses an improved disturbance nozzle fuel injector and relates to a fuel injection device of a direct injection internal combustion engine. The fuel injector comprises a needle valve and a needle valve body and is technically characterized in that a movable valve is arranged at the bottom of the needle valve; carbon deposition prevention coatings are arranged on the bottom surface of the needle valve body, internal walls of main injection orifices and internal walls of sub injection orifices; the at least three main injection orifices are uniformly formed in the needle valve body along a center line of the needle valve body by a cycle; the even (more than four) sub injection orifices are formed in the needle valve body and correspond to each main injection orifice; the sub injection orifices are communicated with the main injection orifices and bifurcated in the same positions in the main injection orifices; and the sub injection orifices on each main injection orifice are evenly divided into a left half group and a right half group which are distributed left and right by taking a center line of each main injection orifice as a midline.The fuel injector is simple in structure and easy to implement, ensures higher atomization intensity, more uniform fuel-air mixture and more sufficient burning, and facilitates energy conservation and emission reduction.
Description
Technical field
The utility model relates to a kind of in-cylinder direct injection fuel injection device for I. C. Engine, and particularly a kind of modified model disturbance spout oil sprayer sprays for fuel oil disturbance after realizing eddy current.
Background technique
Along with scientific and technical progress, the birth of internal-combustion engine has driven the flourish of society, at present internal-combustion engine recoverable amount enormous amount but also in swift and violent increase, in offering convenience to the mankind, also aggravated environmental pollution and energy shortage, the discharge and the raising fuel utilization ratio that therefore reduce internal-combustion engine seem particularly important.The fogging degree of fuel of internal combustion engine has larger impact to the Economy of motor and discharge.At present, the needle-valve of oil sprayer on the market and needle-valve body, due to long-play, internal incrustation easily causes operation not smooth, makes oil spout portion smooth and easy, and oil spout effect reduces.
Summary of the invention
In order to address the above problem, the utility model aims to provide a kind of by the sub-spray orifice of out of phase is set, after can realizing fuel oil eddy current, multi-angle is sprayed, and operation is smooth, to a certain degree also be difficult for card even if oil nozzle uses may wear to, move the modified model disturbance spout oil sprayer of smooth and easy oil spout smoothness.
In order to achieve the above object, the utility model adopts following technological scheme: modified model disturbance spout oil sprayer, comprise needle-valve and needle-valve body, as technical characteristics of the present utility model, needle-valve bottom is provided with moving valve, needle-valve body lower surface, main jet hole inwall and sub-spray orifice inwall are equipped with anti-carbon deposition coating, in needle-valve body, there are at least three main jet holes along one week uniform array of its center line, corresponding each main jet hole is provided with more than four even number spray orifice on needle-valve body, sub-spray orifice and main jet hole UNICOM, and same position bifurcated in main jet hole, sub-spray orifice on each main jet hole is equally divided into left half group and right half group, left half group and right half group taking main jet centerline hole as center line, left and right distributes.
As further improvement of the utility model, half group, a left side between adjacent two main jet holes with right half group of adjacent two sub-spray orifice position relationship is: the conical surface and another sub-orifice center line prolonged section of the taper mist of oil of a sub-spray orifice ejection are tangent, by adjacent sub-spray orifice to half group, the left side of arranged on both sides and right half group one to one sub-spray orifice arrange by same position relationship, main jet hole cross-section area is less than sub-spout cross-section area sum.
As further improvement of the utility model, moving valve is detachable, is positioned at needle-valve bottom center.
The utility model is through above-mentioned technological improvement, reach following beneficial effect: the setting of moving valve, make oil nozzle be convenient to clean, anti-carbon deposition coating makes oil nozzle reduce carbon distribution fouling operation smoothness, oil spout is smooth and easy, at main jet bore end, some sub-spray orifices are set, fuel oil is sprayed by sub-spray orifice after sub-spray orifice crotch produces stronger eddy current due to the change of moving direction, strengthen fuel-oil atmozation intensity, the cone tubular mist of oil of sub-spray orifice ejection respectively two two halves cylinders crosses, form stronger disturbance, further strengthen combustion oil atomization intensity, be conducive to air-fuel mixture; This is simple in structure, easy to implement, and atomization intensity is higher, and air-fuel mixture is more even, burns more abundant, is conducive to energy-saving and emission-reduction.
Brief description of the drawings
Fig. 1 is the utility model modified model disturbance spout oil sprayer overall structure perspective view.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Modified model disturbance spout oil sprayer, comprise needle-valve 1 and needle-valve body 2, described needle-valve 1 bottom is provided with moving valve 6, needle-valve body 2 lower surface, main jet hole 3 inwalls and sub-spray orifice 4 inwalls are equipped with anti-carbon deposition coating 5, needle-valve body 2 is interior has at least three main jet holes 3 along one week uniform array of its center line, corresponding each main jet hole 3 is provided with more than four even number spray orifice 4 on needle-valve body 2, sub-spray orifice 4 and main jet hole 3 UNICOMs, and the interior same position bifurcated in main jet hole 3, sub-spray orifice 4 on each main jet hole 3 is equally divided into left half group and right half group, left half group and right half group taking main jet hole 3 center lines as center line, left and right distributes.
Half group, a left side between described adjacent two main jet holes 3 with right half group of adjacent two sub-spray orifice 4 position relationship is: the conical surface and another sub-spray orifice 4 center line prolonged sections of the taper mist of oil that sub-spray orifice 4 sprays are tangent, by adjacent sub-spray orifice 4 to half group, the left side of arranged on both sides and right half group one to one sub-spray orifice 4 arrange by same position relationship, main jet hole 3 cross-section areas are less than sub-spout cross-section area sum.
Described moving valve 6 is detachable, is positioned at needle-valve 1 bottom center.
The utility model also can sub-spray orifice bifurcation site arrange whirlpool space in main jet hole, and cross section, whirlpool space is greater than sub-spray orifice cross section sum, a side and main jet hole UNICOM, and opposite side and sub-spray orifice UNICOM, for adding Maelstrom and atomization intensity.
Spacing prominent and spiral fluted setting, make needle-valve body in when operation by orbital motion, the oil spout that has prevented the rear needle-valve body operation of oil nozzle wearing and tearing card from pausing and to cause is not smooth, at main jet bore end, some sub-spray orifices are set, fuel oil is sprayed by sub-spray orifice after sub-spray orifice crotch produces stronger eddy current due to the change of moving direction, strengthen fuel-oil atmozation intensity, the cone tubular mist of oil of sub-spray orifice ejection respectively two two halves cylinders crosses, form stronger disturbance, further strengthen combustion oil atomization intensity, be conducive to air-fuel mixture; This is simple in structure, easy to implement, and atomization intensity is higher, and air-fuel mixture is more even, burns more abundant, is conducive to energy-saving and emission-reduction.
Claims (3)
1. modified model disturbance spout oil sprayer, comprise needle-valve (1) and needle-valve body (2), it is characterized in that: needle-valve (1) bottom is provided with moving valve (6), needle-valve body (2) lower surface, main jet hole (3) inwall and sub-spray orifice (4) inwall are equipped with anti-carbon deposition coating (5), in needle-valve body (2), there are at least three main jet holes (3) along one week uniform array of its center line, corresponding each main jet hole (3) is provided with more than four even number spray orifice (4) on needle-valve body (2), sub-spray orifice (4) and main jet hole (3) UNICOM, and same position bifurcated in main jet hole (3), sub-spray orifice (4) on each main jet hole (3) is equally divided into left half group and right half group, left half group and right half group taking main jet hole (3) center line as center line, left and right distributes.
2. modified model disturbance spout oil sprayer as claimed in claim 1, it is characterized in that: half group, a left side between adjacent two main jet holes (3) with right half group of adjacent two sub-spray orifices (4) position relationship is: the conical surface and another sub-spray orifice (4) center line prolonged section of the taper mist of oil of a sub-spray orifice (4) ejection are tangent, by adjacent sub-spray orifice (4) to half group, the left side of arranged on both sides and right half group one to one sub-spray orifice (4) arrange by same position relationship, main jet hole (3) cross-section area is less than sub-spout cross-section area sum.
3. modified model disturbance spout oil sprayer as claimed in claim 1, is characterized in that: moving valve (6) is detachable, is positioned at needle-valve (1) bottom center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420113120.8U CN203702421U (en) | 2014-03-13 | 2014-03-13 | Improved disturbance nozzle fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420113120.8U CN203702421U (en) | 2014-03-13 | 2014-03-13 | Improved disturbance nozzle fuel injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702421U true CN203702421U (en) | 2014-07-09 |
Family
ID=51052874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420113120.8U Expired - Fee Related CN203702421U (en) | 2014-03-13 | 2014-03-13 | Improved disturbance nozzle fuel injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150814A (en) * | 2015-05-11 | 2016-11-23 | 朱海燕 | Anti-carbon deposition fuel injector |
-
2014
- 2014-03-13 CN CN201420113120.8U patent/CN203702421U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150814A (en) * | 2015-05-11 | 2016-11-23 | 朱海燕 | Anti-carbon deposition fuel injector |
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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: 20140709 Termination date: 20150313 |
|
| EXPY | Termination of patent right or utility model |