CN207406429U - Cone structure is adjusted in fuel injector atomization characteristics - Google Patents
Cone structure is adjusted in fuel injector atomization characteristics Download PDFInfo
- Publication number
- CN207406429U CN207406429U CN201720789494.5U CN201720789494U CN207406429U CN 207406429 U CN207406429 U CN 207406429U CN 201720789494 U CN201720789494 U CN 201720789494U CN 207406429 U CN207406429 U CN 207406429U
- Authority
- CN
- China
- Prior art keywords
- deflector
- cone
- circular cone
- fuel injector
- valve seat
- 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.)
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- 239000000446 fuel Substances 0.000 title claims abstract description 31
- 238000000889 atomisation Methods 0.000 title claims abstract description 15
- 238000009827 uniform distribution Methods 0.000 claims abstract description 6
- 230000009471 action Effects 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 239000003595 mist Substances 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 4
- 239000002360 explosive Substances 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000002910 structure generation Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a kind of fuel injector atomization characteristics to be adjusted cone structure, it is included in the valve body structure set at nozzle, the valve body structure includes the armature set from top to bottom, valve seat and deflector, ball valve is pressed downward tightening seal in the circular cone fuel feed hole at the top of valve seat by the armature under the action of return spring, the seat bottom portion opens up the diversion cavity by being communicated with circular cone fuel feed hole, circumference uniform distribution offers the nozzle opening connected with diversion cavity on the deflector, the deflector is the downward circular cone plate of cone angle, the nozzle opening is opened up perpendicular to the plate face of circular cone plate.The oil mist particles that the utility model generates are small, and atomization is uniform, and spray angle adjusting range is big, and discharge coefficient is stablized, and is conducive to the explosive combustion in engine.
Description
Technical field
The utility model is related to electric-controlled fuel injector internal structures, are specially that cone knot is adjusted in a kind of fuel injector atomization characteristics
Structure.
Background technology
Fuel injector is applied to pulsating liquid delicate metering and atomization, such as engine fuel metering and Combustion System, fuel injector
Receive the fuel injection pulse signal that ECU (electronic control unit) is sent, accurately control fuel injection amount.
The structure of fuel injector is mainly made of electromagnetic mechanism, valve body mechanism, atomising mechanism, metrological service and runner mechanism.
Oil atomizing characteristic is an important technology index of fuel injector, is embodied in atomized particle size, mist of oil distribution, oil Shu Fang
To, range and diffusion cone angle etc..To realize the atomizing functions of fuel injector, in the Technological improvement plan of traditional atomising mechanism,
On the taper fuel feed hole that sealed steel ball compression is enclosed at the top of valve seat by armature under return spring effect, the water conservancy diversion of seat bottom portion
Chamber is externally provided with deflector, and circumference uniform distribution opens up tiny nozzle opening on the deflector.
Although above-mentioned improved atomising mechanism makes atomizing effect increase, but actual using effect is unsatisfactory,
Desirable is far not achieved with diffusion cone angle in fogging degree.
Utility model content
In view of the deficiencies of the prior art, technical problem to be solved in the utility model be propose one kind can be further strong
Cone structure is adjusted in the fuel injector atomization characteristics for changing atomizing effect.
Cone structure is adjusted in the fuel injector atomization characteristics that can solve above-mentioned technical problem, and technical solution is included in spray
The valve body structure set at mouth, the valve body structure include the armature, valve seat and the deflector that set from top to bottom, and the armature exists
Ball valve is pressed downward tightening seal in the circular cone fuel feed hole at the top of valve seat under the action of return spring, the seat bottom portion open up by
The diversion cavity communicated with circular cone fuel feed hole, circumference uniform distribution offers the nozzle opening connected with diversion cavity on the deflector, and institute is not
Same is that the deflector is the downward circular cone plate of cone angle, and the nozzle opening is opened up perpendicular to the plate face of circular cone plate.
To adapt to the change of spray angle, the cone angle design of the deflector is between 90 °~175 °.
Compact-sized to make, the conical lower portion that the deflector fits in valve seat is set, and the diversion cavity is and deflector
The consistent conical cavity of taper.
The beneficial effects of the utility model：
1st, the utility model fuel injector atomization characteristics be adjusted cone structure generation oil mist particles it is small, atomization is uniform, spray
Firing angle degree adjusting range is big.
2nd, in the utility model structure, for nozzle opening perpendicular to the conical surface of deflector, discharge coefficient is highly stable, is conducive to
Explosive combustion in engine.
Description of the drawings
Fig. 1 is a kind of structure diagram of embodiment of the utility model.
Fig. 2 is the partial enlarged view at A in Fig. 1 embodiments.
Figure number identifies：1st, armature；2nd, valve seat；3rd, return spring；4th, deflector；5th, nozzle opening；6th, ball valve；7th, diversion cavity；
8th, fuel injector；9th, plunger tube.
Specific embodiment
Illustrated embodiment is described further the technical solution of the utility model below in conjunction with the accompanying drawings.
Cone structure is adjusted in the utility model fuel injector atomization characteristics, and technical solution includes being arranged on 8 nozzle of fuel injector
(A) valve body structure of 9 times mouths of plunger tube at, the valve body structure include the armature 1, ball valve 6, the valve seat that are coaxially disposed from top to bottom
2 and deflector 4, as shown in Figure 1 and Figure 2.
Return spring 3 is pressed in the iron core hole on 1 top of armature, the ball valve 6 is fixed on the iron core of 1 lower part of armature
Bottom of the tube, circumference uniform distribution offers the flowing hole of radial direction on the iron core tube, under the effect of return spring 3, the iron of 1 lower part of armature
Ball valve 6 is pressed and sealed in the circular cone fuel feed hole opened up at 2 top of valve seat by core pipe, and 2 bottom shape of valve seat is downward for cone
Cone, the conical lower section of valve seat 2 coaxially offers the diversion cavity 7 consistent with its taper, the diversion cavity 7 upwards with circle
Coning oilhole communicates, as shown in Figure 2.
The deflector 4 is the circle of the circular cone plate consistent with 2 conical lower section taper of valve seat, the deflector 4 and valve seat 2
Conical lower portion fitting is set, and circumference uniform distribution offers nozzle opening 5 on deflector 4, and the axis of the nozzle opening 5 is perpendicular to deflector
It 4 taper plate face and is communicated with diversion cavity 7, as shown in Figure 2.
According to different atomization characteristics requirements, the cone angle number of degrees of the deflector 4 are designed between 90 °~175 °.
The injection mode of the utility model is：
When electric drive circuit adds control signal, armature 1 overcomes the elastic force of return spring 3 to be attracted upwards with iron core, rank
Iron 1 drives the circular cone fuel feed hole of the opening valve seat 2 of ball valve 6, and oil stream enters 7 pressure accumulation of diversion cavity by the circular cone fuel feed hole of valve seat 2, presses
Power oil outwards sprays mist of oil from the nozzle opening 5 of deflector 4 again, thereby ensure that mist of oil the diffusion of big cone angle and particle it is uniform
Property, (after being mixed with air) is more favorable for the abundant explosive combustion in the combustion chamber of engine, so as to and obtain higher power
And the thermal efficiency.
Claims (3)
1. cone structure is adjusted in fuel injector atomization characteristics, it is included in the valve body structure set at nozzle, the valve body structure bag
The armature (1) set from top to bottom, valve seat (2) and deflector (4) are included, the armature (1) will under the action of return spring (3)
Ball valve (6) is pressed downward tightening seal in the circular cone fuel feed hole at the top of valve seat (2), valve seat (2) bottom open up by with circular cone into
The diversion cavity (7) that oilhole communicates, circumference uniform distribution offers the nozzle opening (5) connected with diversion cavity (7) on the deflector (4),
It is characterized in that：The deflector (4) is the downward circular cone plate of cone angle, and the nozzle opening (5) is opened perpendicular to the plate face of circular cone plate
If.
2. cone structure is adjusted in fuel injector atomization characteristics according to claim 1, it is characterised in that：The deflector
(4) cone angle is 90 °~175 °.
3. cone structure is adjusted in fuel injector atomization characteristics according to claim 1 or 2, it is characterised in that：The water conservancy diversion
The conical lower portion that plate (4) fits in valve seat (2) is set, and the diversion cavity (7) is the conical cavity consistent with deflector (4) taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720789494.5U CN207406429U (en) | 2017-07-03 | 2017-07-03 | Cone structure is adjusted in fuel injector atomization characteristics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720789494.5U CN207406429U (en) | 2017-07-03 | 2017-07-03 | Cone structure is adjusted in fuel injector atomization characteristics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207406429U true CN207406429U (en) | 2018-05-25 |
Family
ID=62322500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720789494.5U Active CN207406429U (en) | 2017-07-03 | 2017-07-03 | Cone structure is adjusted in fuel injector atomization characteristics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207406429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165755A (en) * | 2017-07-03 | 2017-09-15 | 浙江凯利智控科技有限公司 | Fuel injector atomization characteristics can adjust cone structure |
-
2017
- 2017-07-03 CN CN201720789494.5U patent/CN207406429U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165755A (en) * | 2017-07-03 | 2017-09-15 | 浙江凯利智控科技有限公司 | Fuel injector atomization characteristics can adjust cone structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240320 Address after: 530000, 1st floor, Building 3, Nanxiang Electronic Information Industry Park, No. 16 Huawei Road, Nanning Area, China (Guangxi) Pilot Free Trade Zone, Nanning City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Hydrogen Shunshi Technology Co.,Ltd. Country or region after: Zhong Guo Address before: Building 5, No. 800 Yanjiang West Road, Qixing Street, Xinchang County, Shaoxing City, Zhejiang Province, 312500 Patentee before: ZHEJIANG KAILI INTELLIGENT CONTROL TECHNOLOGY CO.,LTD. Country or region before: Zhong Guo |
|
| TR01 | Transfer of patent right |