CN202659394U - High-atomization spiral-flow type electronic fuel injector - Google Patents
High-atomization spiral-flow type electronic fuel injector Download PDFInfo
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- CN202659394U CN202659394U CN 201220373144 CN201220373144U CN202659394U CN 202659394 U CN202659394 U CN 202659394U CN 201220373144 CN201220373144 CN 201220373144 CN 201220373144 U CN201220373144 U CN 201220373144U CN 202659394 U CN202659394 U CN 202659394U
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Abstract
The utility model relates to a fuel injector, in particular to a high-atomization spiral-flow type electronic fuel injector. The fuel injector comprises a casing, an electromagnetic coil arranged in the casing and a valve body arranged on one side of the electromagnetic coil, wherein a valve core is disposed in the electromagnetic coil, one end of the valve core is resiliently connected with a resilient pin through a spring, the other end of the valve core is fixedly connected with a sealing steel ball, the sealing steel ball is plugged in a valve seat with a valve hole in the valve body, a fuel injecting plate with fuel injecting holes is disposed below the valve seat, and the fuel injecting plate and the valve seat form a flow guiding chamber. The high-atomization spiral-flow type electronic fuel injector is characterized in that a flow guiding sheet is arranged on the upper end face of the fuel injecting plate in the fuel injecting chamber, one side of the flow guiding sheet facing the fuel injecting plate is provided with vortex groove which is formed by a runner groove and a swiveling groove, the outer end of the runner groove is communicated with the flow guiding chamber, the inner end of the runner groove is communicated with one side of the swiveling groove, and the fuel injecting holes of the fuel injecting plate are positioned below the swiveling groove. The fuel injector has even atomization, large spreading cone angle and the like, completely solves the technical problems that the atomization effect of a fuel injector is poor, the fuel injecting holes are small and easy to block, the fuel injector is difficult to manufacture and the like, simultaneously increases power of an engine, reduces fuel consumption and hazard waste emission, and is economic, energy-saving and environment-friendly.
Description
Technical field
The utility model relates to a kind of oil sprayer, particularly a kind of high atomization swirling electronic-controlled fuel injector.
Background technique
Along with the constantly soaring raising of realizing with energy-conserving and environment-protective of oil price, people more and more pay attention to the fuel efficiency of Motor Vehicle.The factor that affects fuel efficiency is a lot, and wherein the important point is the injection characteristics of engine fuel injector: fogging degree, the oil mist particles uniformity and diffusion cone angle.Along with the atomizing of oil sprayer is required to improve constantly, the producer has also designed different solutions, yet atomizing effect is all unsatisfactory, mainly be atomize even not.At present, general oil sprayer is often taked several trickle nozzle openings at oil injection plate in order to reach atomizing effect, although atomizing effect increases, but there are impurity and carbon deposit in the fuel oil, stop up easily these tiny nozzle openings, affect the normal operation of oil sprayer.For sort this problem out, existing technology exists a kind of larger nozzle opening of high pressure fit diameter that utilizes to realize atomizing effect, it is 201020521653.1 utility model patent such as the patent No., the oil sprayer that this patent is mentioned is that fuel oil is injected turbulent chamber, fluid produces pressure difference in turbulent chamber, then through the larger nozzle opening ejection of diameter, form tapered mist of oil, yet the actual effect of this oil sprayer is unsatisfactory, and its fogging degree is not by far up to the mark with the diffusion cone angle; The applicant also retrieves one piece of patent documentation, application number is 200910096849.2 utility model patent, the described electric-controlled fuel injector of the document is in order to obtain good injection characteristics, outside valve rod, be provided with flow guide sleeve, utilize the guiding gutter of flow guide sleeve periphery that the fuel oil rotation is poured into space, sealed steel ball place, spray through nozzle opening, although this flow guide sleeve can improve fluid rotary the angle of taper of mist of oil, but there are not enough pressure differences, its fogging degree is undesirable, and this flow guide sleeve volume is large, complex structure, and fabricating cost is high.
Summary of the invention
Deficiency in view of the prior art existence, the utility model innovative design the oil sprayer of the high diffusion of a kind of high atomization, this oil sprayer includes housing, electromagnetic coil in the housing, the valve body of electromagnetic coil one side, in electromagnetic coil, be provided with spool, spool one end is connected with resilient key elasticity by spring, spool the other end fixed connection and sealing steel ball, the valve seat with valve hole of sealed steel ball sealing plug in valve body, below valve seat, be provided with the oil injection plate with nozzle opening, oil injection plate and valve seat form diversion cavity, it is characterized in that: the oil injection plate upper-end surface is provided with guide plate in diversion cavity, guide plate is provided with the vortex flow groove towards the one side of oil injection plate, and the vortex flow groove is made of flow path groove and convolution groove, and the outer end of flow path groove is communicated with diversion cavity, the inner end is communicated with on one side with the convolution groove, and the nozzle opening of oil injection plate is below the convolution groove;
Described nozzle opening is upright opening or inclined hole;
Described nozzle opening diameter is 0.1 ~ 1mm;
Described vortex flow groove is provided with two or more flow path grooves, on one side two or more flow path groove is communicated with the convolution groove respectively;
Described oil injection plate is provided with two or more nozzle openings, corresponding two or more vortex flow grooves that is provided with on the guide plate;
Described convolution groove is rounded;
Described nozzle opening is positioned at the center of circular convolution groove.
A kind of electromagnetic valve type fuel injector according to the utility model design compared to existing technology, has following advantage:
1, fogging degree is high.Because the utility model is provided with the oil injection plate with nozzle opening below valve seat, oil injection plate and valve seat form diversion cavity, when opening the valve hole, fluid enters diversion cavity from the valve orifice flow, in diversion cavity, produce larger hydraulic pressure, cooperate again suitable nozzle opening, just can obtain preferably atomizing effect, improve fuel efficiency.
2, the diffusion cone angle is wide.Fluid in the diversion cavity enters the vortex flow groove of guide plate again, turns round in the convolution groove of vortex flow groove, and then the nozzle opening through the below sprays, because fluid rotates in the convolution groove, the mist of oil diffusion cone angle of its ejection is wider, and oil mist particles is more even, further improves fuel efficiency.
Description of drawings
Fig. 1: main structure chart of the present utility model;
The A section enlarged view of Fig. 2: Fig. 1;
Fig. 3: the plan view of embodiment's 1 guide plate;
Fig. 4: the left view of embodiment's 1 guide plate;
Fig. 5: the plan view of embodiment's 2 guide plates;
Fig. 6: the left view of embodiment's 2 guide plates;
Fig. 7: the plan view of embodiment's 3 guide plates;
Fig. 8: the left view of embodiment's 3 guide plates.
Embodiment
Specify its mode of execution and working principle below in conjunction with accompanying drawing:
What the utility model designed is that a kind of electric-controlled fuel injector includes housing 1, electromagnetic coil 2 in the housing 1, the valve body 7 of electromagnetic coil 2 one sides, in electromagnetic coil 2, be provided with spool 5, one end of spool 5 is connected with resilient key 3 elasticity by spring 4, the other end is fixedly connected with sealed steel ball 11, the valve seat 6 with valve hole of sealed steel ball 11 sealing plugs in valve body 7, below valve seat 6, be provided with the oil injection plate 12 with nozzle opening 8, oil injection plate 12 and valve seat 6 are in valve body 7 interior formation diversion cavity 10, diversion cavity 10 interior oil injection plates 12 upper-end surfaces are fixed with a guide plate 9, the bottom surface of guide plate 9 is provided with a vortex flow groove, this vortex flow groove is comprised of flow path groove 901 and convolution groove 902, the outer end of flow path groove 901 is communicated with diversion cavity 10, its inner end is communicated with the edge of convolution groove 902, fluid in the diversion cavity 10 enters from the entrance of flow path groove 901, flow to convolution groove 902, fluid in the 902 interior formation rotations of convolution groove, again by nozzle opening 8 ejections that are positioned at convolution groove 902 belows, because of fluid rotary and diversion cavity 10 pressure accumulations, the mist of oil diffusion cone angle of ejection is wider, and oil mist particles is more even.
For the structure of guide plate 9, the utility model has designed three kinds of embodiments:
Implement one: the bottom surface of guide plate 9 is provided with a vortex flow groove, this vortex flow groove is comprised of a flow path groove 901 and a convolution groove 902, the outer end of flow path groove 901 is communicated with diversion cavity 10, and the inner end is communicated with the edge of convolution groove 902, and the nozzle opening 8 of oil injection plate 12 is located at the below of convolution groove 902.
Implement two: the bottom surface of guide plate 9 is provided with a vortex flow groove, and this vortex flow groove is comprised of two flow path grooves 901 and a convolution groove 902, two flow path groove 901 symmetries, and are communicated with convolution groove 902 peripheries respectively, fluid in the diversion cavity 10 enters from the entrance of two flow path grooves 901, at convolution groove 902 interior formation rotating fluids, again through being positioned at nozzle opening 8 ejections of convolution groove 902 belows; Fluid in like manner, a plurality of flow path grooves 901 can also be set here, as long as can enter the 902 interior rotations of convolution groove.
Implement three: the bottom surface of guide plate 9 be provided with two or more as implementing two described vortex flow grooves, be that each vortex flow groove comprises two flow path grooves 901 and a convolution groove 902, and the place corresponding with each convolution groove 902 is provided with nozzle opening 8 on oil injection plate 12, fluid enters from a plurality of flow path groove 901 entrances, at convolution groove 902 interior formation rotating fluids, the nozzle opening 8 through each convolution groove 902 below correspondence sprays again.
Take into account again nozzle opening 8 and be difficult for blockedly in order to reach atomizing effect, nozzle opening 8 diameter of the utility model design are 0.1 ~ 1mm, and wherein 0.3 ~ 0.8mm takes into account better, and 0.5 ~ 0.6 takes into account the best.
Take different guide plates according to the guide plate 9 of three kinds of embodiments design recited above according to different motors is corresponding.Its fogging degree and diffusion cone angle can reach good index.
The below specifies its working principle: after the oil sprayer energising, electromagnetic coil 2 produces magnetic field, force upwards action of spool 5, spring 4 shrinks, and spool 5 drives lift off a seat valve hole on 6 of sealed steel balls 11, and fluid is just from the valve orifice flow to diversion cavity 10, fluid in the diversion cavity 10 enters from flow path groove 901 entrances of guide plate 9 again, because the flow path groove 901 outer convolution grooves 902 that are cut in, fluid enters convolution groove 902 rear formation eddy flows, and sprays from nozzle opening 8 under the pressure of diversion cavity 10 interior liquid; After the outage, spring 4 resets, and forces spool 5 to move downwards, and the sealed steel ball 11 on the spool 5 seals end of injection again to the valve hole.
A kind of electric-controlled fuel injector according to the utility model design, compared to existing technology, its oil spout has the characteristics such as atomizing is even, the diffusion cone angle is large, the technical barriers such as the oil sprayer atomizing is poor, Kong Xiaoyi stops up, manufacturing difficulty have thoroughly been solved, improve simultaneously engine power, reduced oil consumption and noxious emission.Namely economical, therefore again energy-conserving and environment-protective the utlity model has outstanding substantive distinguishing features with significant progressive.
Claims (7)
1. high atomization swirling electronic-controlled fuel injector, include housing (1), electromagnetic coil (2) in the housing (1), the valve body (7) of electromagnetic coil (2) one sides, (2) are provided with spool (5) in electromagnetic coil, spool (5) one ends are connected with resilient key (3) elasticity by spring (4), the other end fixed connection and sealing steel ball (11), the valve seat with valve hole (6) of sealed steel ball (11) sealing plug in valve body (7), be provided with the oil injection plate (12) of band nozzle opening (8) in the below of valve seat (6), oil injection plate (12) forms diversion cavity (10) with valve seat (6), it is characterized in that: oil injection plate (12) upper-end surface is provided with guide plate (9) in diversion cavity (10), guide plate (9) is provided with the vortex flow groove towards the one side of oil injection plate (12), the vortex flow groove is made of flow path groove (901) and convolution groove (902), the outer end of flow path groove (901) is communicated with diversion cavity (10), the inner end is communicated with on one side with convolution groove (902), and the nozzle opening (8) of oil injection plate (12) is in the below of convolution groove (902).
2. a kind of high atomization swirling electronic-controlled fuel injector as claimed in claim 1 is characterized in that described nozzle opening (8) is upright opening or inclined hole.
3. a kind of high atomization swirling electronic-controlled fuel injector as claimed in claim 2 is characterized in that described nozzle opening (8) diameter is 0.1 ~ 1mm.
4. a kind of high atomization swirling electronic-controlled fuel injector as claimed in claim 1, it is characterized in that described vortex flow groove is provided with two or more flow path grooves (901), two or more flow path grooves (901) respectively with the convolution groove (902) Yi Bian be communicated with.
5. a kind of high atomization swirling electronic-controlled fuel injector as claimed in claim 1 is characterized in that described oil injection plate (12) is provided with two or more nozzle openings (8), upper corresponding two or more vortex flow grooves that is provided with of guide plate (9).
6. such as claim 1,2 or 3 described a kind of high atomization swirling electronic-controlled fuel injectors, it is characterized in that described convolution groove (902) is rounded.
7. a kind of high atomization swirling electronic-controlled fuel injector as claimed in claim 6 is characterized in that described nozzle opening (8) is positioned at the center of circular convolution groove (902).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220373144 CN202659394U (en) | 2012-07-31 | 2012-07-31 | High-atomization spiral-flow type electronic fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220373144 CN202659394U (en) | 2012-07-31 | 2012-07-31 | High-atomization spiral-flow type electronic fuel injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659394U true CN202659394U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220373144 Expired - Fee Related CN202659394U (en) | 2012-07-31 | 2012-07-31 | High-atomization spiral-flow type electronic fuel injector |
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| CN (1) | CN202659394U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748175A (en) * | 2012-07-31 | 2012-10-24 | 瑞安市仁博汽车配件厂 | High-atomization cyclone-type electrical-control oil sprayer |
-
2012
- 2012-07-31 CN CN 201220373144 patent/CN202659394U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748175A (en) * | 2012-07-31 | 2012-10-24 | 瑞安市仁博汽车配件厂 | High-atomization cyclone-type electrical-control oil sprayer |
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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: 20130109 Termination date: 20140731 |
|
| EXPY | Termination of patent right or utility model |