CN107165755A - Fuel injector atomization characteristics can adjust cone structure - Google Patents
Fuel injector atomization characteristics can adjust cone structure Download PDFInfo
- Publication number
- CN107165755A CN107165755A CN201710530154.5A CN201710530154A CN107165755A CN 107165755 A CN107165755 A CN 107165755A CN 201710530154 A CN201710530154 A CN 201710530154A CN 107165755 A CN107165755 A CN 107165755A
- 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.)
- Pending
Links
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000003595 mist Substances 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 4
- 239000007921 spray 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
- 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
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0628—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a stepped armature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1853—Orifice plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/188—Spherical or partly spherical shaped valve member ends
Abstract
Cone structure is can adjust the invention discloses a kind of fuel injector atomization characteristics, it is included in the valve body structure set at nozzle, the valve body structure includes armature, valve seat and the deflector set from top to bottom, ball valve is pressed downward tightening seal in the circular cone fuel feed hole at the top of valve seat by the armature in the presence 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, and the nozzle opening is opened up perpendicular to the plate face of circular cone plate.The oil mist particles that the present invention is produced are small, and atomization is uniform, and spray angle adjusting range is big, and discharge coefficient is stable, is conducive to the explosive combustion in engine.
Description
Technical field
The present invention relates to electric-controlled fuel injector internal structure, specially a kind of fuel injector atomization characteristics can adjust cone 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 up 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 in terms of, range and diffusion cone angle.To realize in the atomizing functions of fuel injector, the Technological improvement plan of traditional atomising mechanism,
Armature compresses sealed steel ball on the taper fuel feed hole being enclosed at the top of valve seat under return spring effect, the water conservancy diversion of seat bottom portion
Chamber is externally provided with circumference uniform distribution on deflector, the deflector and opens up tiny nozzle opening.
Although above-mentioned improved atomising mechanism makes atomizing effect increase, but actual using effect is unsatisfactory, its
Fogging degree does not reach desirable far with diffusion cone angle.
The content of the invention
In view of the shortcomings of the prior art, the technical problems to be solved by the invention are to propose one kind can further strengthen mist
The fuel injector atomization characteristics for changing effect can adjust cone structure.
It can solve the problem that the fuel injector atomization characteristics of above-mentioned technical problem can adjust cone structure, its technical scheme is included in spray
The valve body structure set at mouth, the valve body structure includes armature, valve seat and the deflector 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 in the presence of return spring, the seat bottom portion open up by
Circumference uniform distribution offers the nozzle opening connected with diversion cavity on the diversion cavity communicated with circular cone fuel feed hole, 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 °.
To make compact conformation, 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.
Beneficial effects of the present invention：
1st, the oil mist particles that the adjustable cone structure of fuel injector atomization characteristics of the present invention is produced are small, and atomization is uniform, jet angle
Spend adjusting range big.
2nd, in structure of the present invention, nozzle opening is perpendicular to the conical surface of deflector, and discharge coefficient is highly stable, is conducive to starting
Explosive combustion in machine.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the present invention.
Fig. 2 is the partial enlarged drawing at A in Fig. 1 embodiments.
Figure number is identified：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.
Embodiment
Illustrated embodiment is described further to technical scheme below in conjunction with the accompanying drawings.
Fuel injector atomization characteristics of the present invention can adjust cone structure, and its technical scheme includes being located at the nozzle of fuel injector 8 (A) place
The valve body structure of 9 times mouths of plunger tube, the valve body structure is including the armature 1 being coaxially disposed from top to bottom, ball valve 6, valve seat 2 and leads
Plate 4 is flowed, as shown in Figure 1 and Figure 2.
Return spring 3 is pressed with the iron core hole on the top of armature 1, the ball valve 6 is fixed on the iron core of the bottom of armature 1
Circumference uniform distribution offers the flowing hole of radial direction on bottom of the tube, the iron core tube, under the effect of return spring 3, the iron of the bottom of armature 1
Ball valve 6 is pressed and sealed in the circular cone fuel feed hole opened up at the top of valve seat 2 by core pipe, and the bottom shape of valve seat 2 is that cone is downward
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 is communicated, as shown in Figure 2.
The deflector 4 is the circular cone plate consistent with the conical lower section taper of valve seat 2, the circle of the deflector 4 and valve seat 2
Conical lower portion laminating 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
4 taper plate face and 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 present invention injection mode be：
When electric drive loop adds control signal, armature 1 overcome the elastic force of return spring 3 upwards with iron core adhesive, rank
Iron 1 drives ball valve 6 to open the circular cone fuel feed hole of valve seat 2, and oil flows enters the pressure accumulation of diversion cavity 7, pressure by the circular cone fuel feed hole of valve seat 2
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 in the combustion chamber of engine abundant explosive combustion, so that and the higher power of acquisition
And the thermal efficiency.
Claims (3)
1. fuel injector atomization characteristics can adjust cone structure, 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 in the presence 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), and valve seat (2) bottom is opened up by entering with circular cone
Circumference uniform distribution offers the nozzle opening (5) connected with diversion cavity (7) on the diversion cavity (7) that oilhole is communicated, 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. fuel injector atomization characteristics according to claim 1 can adjust cone structure, it is characterised in that：The deflector
(4) cone angle is 90 °~175 °.
3. fuel injector atomization characteristics according to claim 1 or 2 can adjust cone structure, 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 |
|---|---|---|---|
| CN201710530154.5A CN107165755A (en) | 2017-07-03 | 2017-07-03 | Fuel injector atomization characteristics can adjust cone structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710530154.5A CN107165755A (en) | 2017-07-03 | 2017-07-03 | Fuel injector atomization characteristics can adjust cone structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107165755A true CN107165755A (en) | 2017-09-15 |
Family
ID=59826955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710530154.5A Pending CN107165755A (en) | 2017-07-03 | 2017-07-03 | Fuel injector atomization characteristics can adjust cone structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107165755A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482820A (en) * | 2021-07-19 | 2021-10-08 | 江苏大学 | Dual-fuel oil injector with variable injection angle and control method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1145655A (en) * | 1995-02-02 | 1997-03-19 | 罗伯特·博施有限公司 | Fuel injection valve for I.C. Engine |
| CN1461382A (en) * | 2001-04-11 | 2003-12-10 | 罗伯特·博施有限公司 | Fuel injection valve |
| DE102004051743A1 (en) * | 2004-10-23 | 2006-04-27 | Robert Bosch Gmbh | Fuel injection valve for fuel injection installation has two slot shaped annular-gap segments, provided on spray element, which fuel lamellae are sprayable with different spraying directions, angles and thicknesses |
| CN101094984A (en) * | 2005-01-03 | 2007-12-26 | 罗伯特·博世有限公司 | Multi-fan-jet nozzle and a fuel injection valve provided with said nozzle |
| CN102108928A (en) * | 2010-09-08 | 2011-06-29 | 柳州源创电喷技术有限公司 | Single-hole atomization electromagnetic valve type precise oil sprayer |
| CN106489023A (en) * | 2014-09-18 | 2017-03-08 | 日立汽车系统株式会社 | Fuelinjection nozzle |
| CN107152362A (en) * | 2017-07-03 | 2017-09-12 | 浙江凯利智控科技有限公司 | Novel structure fuel injector |
| CN207406429U (en) * | 2017-07-03 | 2018-05-25 | 浙江凯利智控科技有限公司 | Cone structure is adjusted in fuel injector atomization characteristics |
-
2017
- 2017-07-03 CN CN201710530154.5A patent/CN107165755A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1145655A (en) * | 1995-02-02 | 1997-03-19 | 罗伯特·博施有限公司 | Fuel injection valve for I.C. Engine |
| CN1461382A (en) * | 2001-04-11 | 2003-12-10 | 罗伯特·博施有限公司 | Fuel injection valve |
| DE102004051743A1 (en) * | 2004-10-23 | 2006-04-27 | Robert Bosch Gmbh | Fuel injection valve for fuel injection installation has two slot shaped annular-gap segments, provided on spray element, which fuel lamellae are sprayable with different spraying directions, angles and thicknesses |
| CN101094984A (en) * | 2005-01-03 | 2007-12-26 | 罗伯特·博世有限公司 | Multi-fan-jet nozzle and a fuel injection valve provided with said nozzle |
| US20090321541A1 (en) * | 2005-01-03 | 2009-12-31 | Volker Holzgrefe | Multi-fan jet nozzle and fuel injector having a multi-fan jet nozzle |
| CN102108928A (en) * | 2010-09-08 | 2011-06-29 | 柳州源创电喷技术有限公司 | Single-hole atomization electromagnetic valve type precise oil sprayer |
| CN106489023A (en) * | 2014-09-18 | 2017-03-08 | 日立汽车系统株式会社 | Fuelinjection nozzle |
| CN107152362A (en) * | 2017-07-03 | 2017-09-12 | 浙江凯利智控科技有限公司 | Novel structure fuel injector |
| CN207406429U (en) * | 2017-07-03 | 2018-05-25 | 浙江凯利智控科技有限公司 | Cone structure is adjusted in fuel injector atomization characteristics |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482820A (en) * | 2021-07-19 | 2021-10-08 | 江苏大学 | Dual-fuel oil injector with variable injection angle and control method thereof |
| CN113482820B (en) * | 2021-07-19 | 2022-09-16 | 江苏大学 | Dual-fuel oil injector with variable injection angle and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170915 |
|
| WD01 | Invention patent application deemed withdrawn after publication |