CN209458049U - Rotary oil ejector - Google Patents
Rotary oil ejector Download PDFInfo
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- CN209458049U CN209458049U CN201822280317.1U CN201822280317U CN209458049U CN 209458049 U CN209458049 U CN 209458049U CN 201822280317 U CN201822280317 U CN 201822280317U CN 209458049 U CN209458049 U CN 209458049U
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- oil
- nozzle
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- nozzle assembly
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Abstract
The utility model discloses a kind of rotary oil ejectors, pass through rotating jointly for inside and outside rotary nozzle assembly, and the cooperation that horizontal and vertical oil spout is stitched at interior outer nozzle, the intersection of inside and outside oil spout seam just has fuel oil to eject, with the rotation of component, the oil column of ejection is in screw rule from the bottom up, to realize the direction of motion for actively changing oily beam, make spraying spiral spray, length is divided to reduce, so as to improve pulverability, so that fuel oil mist of oil is evenly distributed as far as possible, gaseous mixture local over-concentration phenomenon is reduced.The utility model is not necessarily under conditions of super high injection pressure, being effectively improved for pulverability can be realized, and fuel oil can be effectively reduced to be ejected into combustion chamber, it is greatly improved the dynamic property, economy, emission performance of diesel engine, and to the precision of fuel injector coupling part without excessive demand, practical value is significant.
Description
Technical field
The utility model relates to fuel injector field, especially a kind of rotary oil ejector.
Background technique
Diesel engine is mechanical as the major impetus of traffic and transport field, the superiority and inferiority of performance, especially dynamic property, economy
Property, emission performance quality be directly related to society labor productivity and quality.Currently, diesel injector generallys use height
Spray pressure (the injection pressure that such as current common rail electric-controlling injection system can provide 250MPa or so) and small injection diameter
The atomization, evaporation and mixture homogeneity of (0.1mm~0.2mm, even lower than 0.1mm) Lai Tigao fuel oil and reduction discharge.
But more stringent requirements are proposed for processing and manufacturing of the excessively high injection pressure to fuel injector precision coupling part, therefore, with
It carries out balance studies in the contradiction that the raising of injection pressure and the processing and manufacturing measure of precision of coupling part require, and is not so good as from other
Aspect is set out, such as is started with from the structural improvement of atomizer, it will is arranged as a kind of optimization pulverability and the effective of burning
It applies.
Utility model content
Purpose of utility model: in order to solve the problems of prior art, the utility model provides a kind of rotary
Fuel injector, without being effectively improved for pulverability can be realized, and fuel oil can be effectively reduced under conditions of super high injection pressure
It is ejected into combustion chamber wall surface, is greatly improved the dynamic property, economy, emission performance of diesel engine.
Technical solution: in order to achieve the above objectives, following technical solution: rotary oil ejector can be used in the utility model, packet
Include shell, oil circuit, oil inlet, oil return opening, include in shell the electromagnetic valve component set gradually from top to bottom, needle-valve bar assembly with
And nozzle assembly；
The nozzle assembly includes can high-speed rotating interior rotary nozzle assembly and outer rotary nozzle assembly；The outer rotation
The revolving speed of nozzle assembly is at least twice of the revolving speed of interior rotary nozzle assembly；
The interior rotary nozzle assembly is movably set in hull outside and is equipped with the first seal assembly between shell；It is described
Outer rotary nozzle assembly is movably set in outside interior rotary nozzle assembly and is equipped with the second sealing between interior rotary nozzle assembly
Component；
At least eight vertical direction the first oil spout seam disposed in parallel is offered at the nozzle of the interior rotary nozzle assembly；
At least six horizontal direction is offered at the nozzle of the outer rotary nozzle assembly to be stepped and the second oil spout disposed in parallel
Seam；
The middle part of shell is arranged in the oil inlet, communicates with oil circuit, and the oil circuit and shell and enclosure interior are each
The oil pocket of multiple connections is collectively formed between component, from top to bottom including the oil pocket one outside electromagnetic valve component, needle-valve bar assembly
The oil pocket two at top, the oil pocket three of Needle shaft component external and oil pocket four, the oil between Needle shaft component bottom and nozzle assembly
Chamber five；
The oil circuit is divided into two-way after oil inlet entrance, and the excessively oil-filled control hole of a-road-through enters needle-valve bar assembly top
Oil pocket two, another way are directly entered the oil pocket four of Needle shaft component external down；It is equipped between oil pocket two and the oil pocket on top one
Release the control hole；The oil return opening is set to the top of oil pocket one；The oil pocket one side passes through oil circuit and oil pocket tee joint；
Moving up and pushing for the electromagnetic valve component realizes the opening and closing for releasing the control hole to control oil pocket one and oil pocket two
Connection and blocking；The needle-valve bar assembly move up with push realize oil pocket four and oil pocket five be connected to and blocking.
In some embodiments, the electromagnetic valve component includes the power control component for being external to hull outside, shell
Coil, armature and the ball valve that inside is set gradually from top to bottom；The armature top and the bottom be respectively equipped with armature upper spring and
Spring under armature.
In some embodiments, the needle-valve bar assembly includes the needle extended to from nozzle assembly nozzle from housing central section
Valve rod, nozzle needle pressure rings and Needle shaft return spring；The nozzle needle pressure rings be set in needle-valve rod outer surface and
In the middle part of Needle shaft；The Needle shaft return spring is set to above nozzle needle pressure rings and is located in oil pocket three.
In some embodiments, the interior rotary nozzle assembly further includes integrally formed inner nozzle seat and the upper end
Inner nozzle seat driven wheel, the inner nozzle seat driving wheel being connected with outer motor；The outer rotary nozzle assembly further includes being integrally formed
Outer nozzle seat and the outer nozzle seat driven wheel of the upper end, the outer nozzle seat driving wheel that is connected with outer motor.
More preferably, first seal assembly include the setting of inner nozzle seat inner wall at least one the first seal grooves and
With its internal inner nozzle seat sealing ring installed；First seal assembly realizes the sealing of interior rotary nozzle assembly 71 and shell
Property；
Further, first seal groove is two.
More preferably, second seal assembly includes the second seal groove of inner nozzle seat outer wall setting, outer nozzle seat
The third seal groove of inner wall setting；Outer nozzle seat sealing ring is provided in second seal groove and third seal groove.
More preferably, the range of speeds of the outer motor is 2000-8000r/min.
In some embodiments, the revolving speed of the outer rotary nozzle assembly is the two of the revolving speed of interior rotary nozzle assembly
Times.
The first oil spout seam is 8, uniformly opens up and is distributed on the outer nozzle wall of interior rotary nozzle assembly, every slit width
For 0.1mm, length 7mm；The second oil spout seam is 6, is stepped and is evenly distributed on the nozzle of outer rotary nozzle assembly
On outer wall, every slit width is 0.1mm, length 4.03mm, and center is away from for 1mm between adjacent the second oil spout seam.This size
Design can be realized the oil column of ejection in optimal spiral spray state, improve the uniformity coefficient of the mist of oil sprayed.
The utility model has the advantages that a kind of rotary oil ejector disclosed in the utility model, passes through being total to for inside and outside rotary nozzle assembly
With the cooperation of oil spout seam horizontal at rotation and two nozzle assembly nozzles and vertical oil spout seam, the intersection of inside and outside oil spout seam
Just there is fuel oil to eject, with the rotation of inside and outside rotary nozzle assembly, the oil column of ejection is in screw rule from the bottom up
Rule makes spraying spiral spray to realize the direction of motion for actively changing oily beam, and division length reduces, so as to improve pulverability,
So that fuel oil mist of oil is evenly distributed as far as possible, gaseous mixture local over-concentration phenomenon is reduced.The utility model is not necessarily to superelevation jet pressure
Under conditions of power, being effectively improved for pulverability can be realized, and fuel oil can be effectively reduced and be ejected into combustion chamber, make diesel oil
The dynamic property of machine, economy, emission performance are greatly improved, and to the precision of fuel injector coupling part without excessive demand, practical valence
Value is significant.
Detailed description of the invention
State when Fig. 1 is the structural schematic diagram, specially non-oil spout of 1 rotary oil ejector of the utility model embodiment；
Fig. 2 is the nozzle assembly structural schematic diagram of 1 rotary oil ejector of the utility model embodiment；
Fig. 3 is the inner nozzle component structure diagram of 1 rotary oil ejector of the utility model embodiment；
Fig. 4 is the outer nozzle component structure diagram of 1 rotary oil ejector of the utility model embodiment；
Fig. 5 is the inside and outside nozzle assembly seal ring structure schematic diagram of 1 rotary oil ejector of the utility model embodiment.
Specific embodiment
Embodiment 1:
It please refers to shown in Fig. 1-5, the utility model discloses a kind of rotary oil ejector, including shell 1, oil circuit 2, oil inlets
Mouth 3, oil return opening 4, interior shell 1 includes electromagnetic valve component 5, needle-valve bar assembly 6 and the nozzle assembly set gradually from top to bottom
7；
The electromagnetic valve component 5 include be external to the power control component 51 outside shell 1, inside shell 1 from top to bottom
Coil 52, armature 53 and the ball valve 54 set gradually；53 top and the bottom of armature are respectively equipped with armature upper spring 55 and rank
Spring 56 under iron；
The needle-valve bar assembly 6 includes the Needle shaft 61 extended to from 7 nozzle of nozzle assembly in the middle part of shell 1, nozzle needle
Valve pressure rings 62 and Needle shaft return spring 63；The nozzle needle pressure rings 62 are set in 61 outer surface of Needle shaft and are located at
61 middle part of Needle shaft；The Needle shaft return spring 63 is set to 62 top of nozzle needle pressure rings.
The middle part of shell 1 is arranged in the oil inlet 3, communicates with oil circuit 2, in the oil circuit 2 and shell 1 and shell 1
The oil pocket of multiple connections is collectively formed between portion's various components, from top to bottom includes oil pocket 1, needle outside electromagnetic valve component 5
Oil pocket 3 23 and oil pocket 4 24 outside the oil pocket 2 22 at the top of valve rod assembly 6, needle-valve bar assembly 6,6 bottom of needle-valve bar assembly and
Oil pocket 5 25 between nozzle assembly 7；Wherein Needle shaft return spring 63 is set to inside oil pocket 3 23.
The nozzle assembly 7 includes can high-speed rotating interior rotary nozzle assembly 71 and outer rotary nozzle assembly 72；It is described
The revolving speed of outer rotary nozzle assembly 72 is twice of the revolving speed of interior rotary nozzle assembly 71；The interior rotary nozzle assembly 71 includes
Integrally formed inner nozzle seat 712 and the inner nozzle seat driven wheel 713 of the upper end, the inner nozzle seat driving wheel being connected with outer motor
714；The outer rotary nozzle assembly 72 further includes the outer nozzle seat driven wheel of integrally formed outer nozzle seat 722 and the upper end
723, the outer nozzle seat driving wheel 724 being connected with outer motor；Outer motor is rotated with the revolving speed of 2000-8000r/min, respectively
Inside and outside nozzle carrier driven wheel is driven to be rotated by inside and outside nozzle carrier driving wheel, wherein the number of teeth of outer nozzle seat driven wheel 723
It is twice of 713 number of teeth of inner nozzle seat driven wheel, to realize that the revolving speed of inner nozzle seat driven wheel 713 is outer nozzle seat driven wheel
2 times of 723 revolving speed；
The interior rotary nozzle assembly 71 is movably set in 1 outside of shell and is equipped with the first seal assembly between shell 1；
First seal assembly include the setting of 712 inner wall of inner nozzle seat two the first seal grooves 717 and in its internal installation
Nozzle carrier sealing ring 715；First seal assembly realizes the leakproofness between interior rotary nozzle assembly 71 and shell 1, to prevent
The only leakage of pressurized fuel；
The outer rotary nozzle assembly 72 be movably set in 71 outside of interior rotary nozzle assembly and with interior rotary nozzle assembly
The second seal assembly is equipped between 71；Second seal assembly includes the second seal groove of 712 outer wall of inner nozzle seat setting
716, the third seal groove 726 of 722 inner wall of outer nozzle seat setting；It is provided in second seal groove 716 and third seal groove 716 outer
Nozzle carrier sealing ring 725；To prevent pressurized fuel from the clearance leakage between two components.
The outer nozzle wall of the interior rotary nozzle assembly 71 is uniformly provided with the first oil spout disposed in parallel of 8 vertical directions
Seam 711；Every slit width is 0.1mm, length 7mm；Outer wall offers 6 levels at the nozzle of the outer rotary nozzle assembly 72
Direction is stepped and the second oil spout disposed in parallel seam 721, and every slit width is 0.1mm, length 4.03mm, and adjacent second
Center is away from for 1mm between oil spout seam 721.The oil column that the design of this size can be realized ejection is in optimal spiral spray state,
Improve the uniformity coefficient of the mist of oil sprayed.
The oil circuit 2 is divided into two-way after the entrance of oil inlet 3, and the excessively oil-filled control hole 221 of a-road-through enters needle-valve bar assembly 6
The oil pocket 2 22 on top, another way are directly entered the oil pocket 4 24 outside needle-valve bar assembly 6 down；The oil of oil pocket 2 22 and top
It is equipped between chamber 1 and releases the control hole 222；The oil return opening 4 is set to the top of oil pocket 1；One 21 side of oil pocket is logical
Oil circuit 2 is crossed to be connected to oil pocket 3 23；
Moving up and pushing for the electromagnetic valve component 5 realizes the opening and closing for releasing the control hole 222 to control one 21 He of oil pocket
The connection and blocking of oil pocket 2 22；Moving up for the needle-valve bar assembly 6 realizes being connected to for oil pocket 4 24 and oil pocket 5 25 with pushing
And blocking.
Working principle:
When the power control component 51 of electromagnetic valve component 5 there is no external power supply, armature 53 is in armature upper spring 55
Under the action of close release the control hole 222 at the bottom, high pressure oil through oil inlet 3 enter oil circuit 2 and through oil-filled control hole 221 into
Enter the oil pocket 2 22 of 61 top of Needle shaft, and overcomes the elastic force of the compression Needle shaft return spring 63 of Needle shaft 61 will be under Needle shaft 61
It is depressed at 5 25 upper port of oil pocket and is turned off, to close the nozzle of nozzle assembly 7.
When the power control component 51 of electromagnetic valve component 5 obtains power supply, coil 52 is obtained electric and is inhaled armature 53 upwards, ball
Valve 54, which synchronizes, to be moved up, to release the control the opening of hole 222, is connected between oil pocket 1 and oil pocket 2 22, the oil in oil pocket 2 22
Liquid flows back through oil return opening 4, and Needle shaft 61 moves up under the oil pressure effect in oil pocket 4 24, and oil pocket 4 24 is connected to oil pocket 25, spray
It is opened at the nozzle of nozzle assembly 7, while opening outer motor, inside and outside swivel nozzle seat driving wheel drives inside and outside swivel nozzle respectively
Seat driven gear carries out high speed rotation, to rotate the rotation of nozzle carrier 712 and outer rotation nozzle carrier 722 in driving；Fuel oil from
Successively 721 ejection of the 711, second oil spout seam is stitched in the first oil spout through rotating to oil pocket 5 25；Because two oil spout seam intersections just have
Fuel oil ejects, so the oil column of ejection is in screw rule from the bottom up, with the rotation of component to realize actively
The direction of motion for changing oily beam, makes fuel oil mist of oil be evenly distributed as far as possible, reduces gaseous mixture local over-concentration phenomenon.
Claims (10)
1. rotary oil ejector, including shell (1), oil circuit (2), oil inlet (3), oil return opening (4), it is characterised in that shell (1)
Interior electromagnetic valve component (5), needle-valve bar assembly (6) and nozzle assembly (7) including setting gradually from top to bottom；
The nozzle assembly (7) includes can high-speed rotating interior rotary nozzle assembly (71) and outer rotary nozzle assembly (72)；Institute
State outer rotary nozzle assembly (72) revolving speed be interior rotary nozzle assembly (71) revolving speed at least twice；
The interior rotary nozzle assembly (71) is movably set in shell (1) outside and is equipped with the first sealing group between shell (1)
Part；The outer rotary nozzle assembly (72) be movably set in interior rotary nozzle assembly (71) it is external and with interior rotary nozzle assembly
(71) the second seal assembly is equipped between；
At least eight vertical direction the first oil spout seam disposed in parallel is offered at the nozzle of the interior rotary nozzle assembly (71)
(711)；At least six horizontal direction is offered at the nozzle of the outer rotary nozzle assembly (72) to be stepped and disposed in parallel
(721) are stitched in second oil spout；
The oil inlet (3) is arranged at the middle part of shell (1), communicates with oil circuit (2), the oil circuit (2) and shell (1) and shell
The oil pocket of multiple connections is collectively formed between the internal various components of body (1), from top to bottom includes electromagnetic valve component (5) external oil
The oil pocket three (23) and oil pocket four of oil pocket two (22), needle-valve bar assembly (6) outside at the top of chamber one (21), needle-valve bar assembly (6)
(24), the oil pocket five (25) between needle-valve bar assembly (6) bottom and nozzle assembly (7)；
The oil circuit (2) is divided into two-way after entering from oil inlet (3), the excessively oil-filled control hole (221) of a-road-through enters Needle shaft group
The oil pocket two (22) on part (6) top, another way are directly entered the external oil pocket four (24) of needle-valve bar assembly (6) down；Oil pocket two
(22) it is equipped between the oil pocket one (21) on top and releases the control hole (222)；The oil return opening (4) is set to the top of oil pocket one (21)
Portion；Oil pocket one (21) side is connected to by oil circuit (2) with oil pocket three (23)；
Moving up and pushing for the electromagnetic valve component (5) realizes the opening and closing for releasing the control hole (222) to control oil pocket one (21)
With oil pocket two (22) be connected to and blocking；Oil pocket four (24) and oil pocket five are realized in moving up and pushing for the needle-valve bar assembly (6)
(25) connection and blocking.
2. rotary oil ejector according to claim 1, it is characterised in that: the electromagnetic valve component (5) includes being external to
Coil (52), the armature (53) set gradually from top to bottom inside the external power control component (51) of shell (1), shell (1)
And ball valve (54)；Armature (53) top and the bottom are respectively equipped with spring (56) under armature upper spring (55) and armature.
3. rotary oil ejector according to claim 1, it is characterised in that: the needle-valve bar assembly (6) includes from shell
(1) middle part extends to the Needle shaft (61) at nozzle assembly (7) nozzle, nozzle needle pressure rings (62) and Needle shaft return bullet
Spring (63)；The nozzle needle pressure rings (62) are set in Needle shaft (61) outer surface and are located in the middle part of Needle shaft (61)；It is described
Needle shaft return spring (63) is set to above nozzle needle pressure rings (62) and is located in oil pocket three (23).
4. rotary oil ejector according to claim 1, it is characterised in that: the interior rotary nozzle assembly (71) further includes
The inner nozzle seat driven wheel (713) of integrally formed inner nozzle seat (712) and the upper end, the inner nozzle seat master being connected with outer motor
Driving wheel (714)；The outer rotary nozzle assembly (72) further includes the outer nozzle of integrally formed outer nozzle seat (722) and the upper end
Seat driven wheel (723), the outer nozzle seat driving wheel (724) that is connected with outer motor.
5. rotary oil ejector according to claim 4, it is characterised in that: first seal assembly includes inner nozzle seat
(712) at least one the first seal grooves (717) of inner wall setting and with its internal inner nozzle seat sealing ring (715) installed；Institute
State the leakproofness that the first seal assembly realizes interior rotary nozzle assembly (71) and shell (1).
6. rotary oil ejector according to claim 5, it is characterised in that: first seal groove (717) is two.
7. rotary oil ejector according to claim 4, it is characterised in that: second seal assembly includes inner nozzle seat
(712) the third seal groove (726) that the second seal groove (716), outer nozzle seat (722) inner wall of outer wall setting are arranged；Second is close
Outer nozzle seat sealing ring (725) is provided in sealing groove (716) and third seal groove (726).
8. rotary oil ejector according to claim 4, it is characterised in that: the range of speeds of the outer motor is 2000-
8000r/min。
9. rotary oil ejector according to claim 1, it is characterised in that: the revolving speed of the outer rotary nozzle assembly (72)
It is twice of the revolving speed of interior rotary nozzle assembly (71).
10. rotary oil ejector according to claim 1, it is characterised in that: the first oil spout seam (711) is 8,
Even open up is distributed on the outer nozzle wall of interior rotary nozzle assembly (71), and every slit width is 0.1mm, length 7mm；Described second
It is 6 that (721) are stitched in oil spout, is stepped on the outer nozzle wall for being evenly distributed on outer rotary nozzle assembly (72), every slit width is
0.1mm, length 4.03mm, center is away from for 1mm between adjacent the second oil spout seam (721).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822280317.1U CN209458049U (en) | 2018-12-28 | 2018-12-28 | Rotary oil ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822280317.1U CN209458049U (en) | 2018-12-28 | 2018-12-28 | Rotary oil ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209458049U true CN209458049U (en) | 2019-10-01 |
Family
ID=68043518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822280317.1U Active CN209458049U (en) | 2018-12-28 | 2018-12-28 | Rotary oil ejector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209458049U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595110A (en) * | 2018-12-28 | 2019-04-09 | 南通理工学院 | Rotary oil ejector |
| CN117028100A (en) * | 2023-07-17 | 2023-11-10 | 江苏车驰汽车有限公司 | Engine fuel rotary spraying device capable of reducing oil mist adhesion and oil spraying method thereof |
-
2018
- 2018-12-28 CN CN201822280317.1U patent/CN209458049U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595110A (en) * | 2018-12-28 | 2019-04-09 | 南通理工学院 | Rotary oil ejector |
| CN109595110B (en) * | 2018-12-28 | 2024-04-19 | 南通理工学院 | Rotary fuel injector |
| CN117028100A (en) * | 2023-07-17 | 2023-11-10 | 江苏车驰汽车有限公司 | Engine fuel rotary spraying device capable of reducing oil mist adhesion and oil spraying method thereof |
| CN117028100B (en) * | 2023-07-17 | 2024-03-26 | 江苏车驰汽车有限公司 | Engine fuel rotary spraying device capable of reducing oil mist adhesion and oil spraying method thereof |
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