CN108561251A - The assembly method of fuel injector - Google Patents
The assembly method of fuel injector Download PDFInfo
- Publication number
- CN108561251A CN108561251A CN201810184718.9A CN201810184718A CN108561251A CN 108561251 A CN108561251 A CN 108561251A CN 201810184718 A CN201810184718 A CN 201810184718A CN 108561251 A CN108561251 A CN 108561251A
- Authority
- CN
- China
- Prior art keywords
- fuel injector
- slot
- valve
- wire lead
- valve body
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 22
- 230000004044 response Effects 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 1
- 230000005352 galvanomagnetic phenomena Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist 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
- 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
-
- 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
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention relates to technical field of automobile parts, specifically be a kind of assembly method of fuel injector, include the following steps：S1. connecting part (8) is formed；S2. coil component (7) is formed；S3. drive component is formed；S4. valve hole part (5) is formed；S5. spool (22) is fitted into the valve core installation cavity (27) of valve body (1)；S6. the first sealing ring (49) is connected in first annular slot (48)；S7. drive component is placed in valve body (1) and coil rack (33) is set in armature seat (24)；S8. the second sealing ring (51) is connected in the second annular groove (50)；S9. annulus column (4) is inserted into coil rack (33)；S10. spring (11) is placed in annulus column (4).The present invention provides a kind of assembly method for the fuel injector making simple process again on the basis of ensureing product quality.
Description
Technical field
The present invention relates to technical field of automobile parts, specifically be a kind of assembly method of fuel injector.
Background technology
Fuel injector is mainly used for nebulizing the fuel oil quantified by liquid change, is then mixed with air, keeps automotive field normal
One of parts.
Fuel injector in the prior art generally controls its opening and closing using galvanomagnetic-effect.Such as State Intellectual Property Office's public affairs
A kind of swirling electronic-controlled fuel injector of gasoline engine (application publication number CN 101806265A) opened, be by：End cap, resets bullet at iron core
Spring, armature, valve rod, spool, valve seat axial order are formed by connecting, and further include:Coil rack, the coil of iron core periphery, outside coil
The shell enclosed, guide sleeve and spray orifice with the dynamic cooperation of spool.The fuel injector of the patent disclosure has following insufficient：
1, spacing, that is, stroke of iron core and armature is fixed, and the elastic force size of resetting spring is to immobilize
, therefore, after fuel injector assembly, the response time of fuel injector cannot be adjusted, and do not adapted to specific operating mode and be adjusted.
2, the mode of connection of fuel injector is entered from the upper terminated line of fuel injector, in this way, the dress above fuel injector can be influenced
Match；And it is complicated to connect electric mode, bad energization.
3, the spray orifice of fuel injector is only a port, thus the atomizing effect of fuel injector have it is to be hoisted.
4, the assembly technology of fuel injector is complicated.
Invention content
Present invention seek to address that one of above-mentioned technical problem.
Technical problem to be solved by the invention is to provide one kind on the basis of ensureing product quality again so that technique letter
Just the assembly method of fuel injector.
In order to solve the above technical problems, the assembly method of fuel injector disclosed in the present application, includes the following steps：
S1. connecting part is formed：Pedestal and two connecting terminal injection mouldings are obtained into connecting part, at this time connecting terminal
Part is located in inner ring hole；
S2. coil component is formed：Coil is fixed in winding slot, two leads of coil are located at two wire lead slots
Wire lead slot second in；
S3. drive component is formed：The inner ring hole of pedestal is socketed on circular ring shape mounting portion, connecting terminal is far from interface
One end wire lead slot end face offset effect under can be bent to wire lead slot；Lead and connecting terminal are broken into curved placement later
In storage tank and weld；Glue is perfused in wire lead slot and storage tank later；
S4. valve hole part is formed：Armature seat is fixed on fixture, press mounting tool acts on sinking step surface by spool
End is connected with card slot interference fit；
S5. spool is fitted into the valve core installation cavity of valve body, valve core installation cavity is acted on using press mounting tool later
End face simultaneously connects throttle block and mounting groove interference fit；
S6. the first sealing ring is connected in first annular slot；
S7. drive component is placed in valve body and coil rack is set in armature seat；
S8. the second sealing ring is connected in the second annular groove；
S9. annulus column is inserted into coil rack and valve deck is fixedly connected with the valve body；
S10. spring is placed in annulus column, third sealing ring is connected in third annular groove, by adjusting screw with
Valve deck is threadedly coupled.
After the above method, have the following advantages that：
1, be located in the wire lead slot second of two wire lead slots in this way can be to avoid connecing in later step for two leads
Line terminals may contradict lead after plastic deformation and lead is made to slide into the bottom end of wire lead slot, and paving is carried out for later step
Pad；
2, the one end of connecting terminal far from interface can be bent to wire lead slot under the effect of offseting of wire lead slot end face
It can be with connecting terminal automatic bending, to easy to assembly and improve efficiency of assembling to be equivalent to；
3, press mounting tool acts on sinking step surface to have allowed for spool wall thickness at sinking step surface position larger, can
To prevent the spool in assembly from deforming, guarantee is carried out for the product quality of fuel injector；
4, press mounting tool acts on the end face of valve core installation cavity to allow for the end face of valve core installation cavity is not important end face,
Effect not only facilitates assembly but also does not interfere with product quality on it；Throttle block and mounting groove interference fit connection are allowed for
Throttle block can not possibly be made of one molding structure with spool, cannot be assembled to if throttle block is made of one molding structure with spool
On valve body, interference fit connection can ensure connection structure intensity, and technique is convenient；
The assembly method step of the fuel injector of the application is all linked with one another as a result, makes again on the basis of ensureing product quality
Obtain simple process, that is to say, that a kind of assembly method of new fuel injector is produced, with substantive distinguishing features outstanding and significantly
Progress.
Preferably, it refers to that valve deck edge bending and molding is formed flange clamping that valve deck, which is fixedly connected with the valve body, in step S9
On the defining flange of valve body.In this way, the mode that bending and molding forms flange uses plastic forming mode, stable structure, molding
It is convenient.
Preferably, the assembly method of fuel injector further includes following steps：
S11. it debugs：The energization response time of fuel injector is tested, if the energization response time that test obtains is less than preset value
Range then turns adjusting screw outward；If the energization response time that test obtains is more than values, by adjusting screw
Inwardly turn；Until when the energization response time that test obtains meets values, stopping turns adjusting screw.In this way, can
To be debugged before manufacture, product is formed.Certainly, specifically different preset ranges can be formulated according to the different demands of client
Value, can thus adjust out the different product of parameter, meet the diversified demand of product.
Preferably, the assembly method of fuel injector further includes following steps：
S12. after completing debugging, glue is instilled in adjusting screw and valve deck threaded connection place.In this manner it is ensured that adjusting spiral shell
Nail will not loosen when in use and position changes, and ensure the stability in use of fuel injector.
Between step S11 and step S12, further include：By the head piece plug in adjusting screw.In this way, instilling
Glue can ensure that glue does not flow into head piece and be impacted to fuel injector inside.
Description of the drawings
Fig. 1 is the structural schematic diagram of the method fuel injector to be assembled of the present invention.
Fig. 2 is the seperated schematic diagram of the method fuel injector to be assembled of the present invention.
Fig. 3 is the schematic cross-section of the method fuel injector to be assembled of the present invention.
Fig. 4 is the enlarged diagram at A in Fig. 3.
Fig. 5 is the knot during the inner ring hole of the method fuel injector to be assembled of the present invention is socketed with circular ring shape mounting portion
Structure schematic diagram.
Fig. 6 is the enlarged diagram at B in Fig. 5.
Fig. 7 be the present invention the method fuel injector to be assembled connecting terminal and lead end accommodation when storage tank
Structural schematic diagram.
Fig. 8 is the structural representation when coil of the method fuel injector to be assembled of the present invention is assembled together with coil rack
Figure.
Fig. 9 is the enlarged diagram at C in Fig. 8.
Figure 10, which is the method fuel injector to be assembled of the present invention, has the structural schematic diagram of limit protrusion.
Figure 11 is the structural schematic diagram of the connecting part in the method fuel injector to be assembled of the present invention.
Figure 12 is the flow chart of the assembly method of fuel injector of the present invention.
Wherein：
1, valve body；2, injector；3, valve deck；4, annulus column；5, valve hole part；6, it is spaced；7, coil component；8, wire connecting portion
Part；9, adjusting screw；10, head piece；11, spring；12, axially-extending portion；13, oil outlet；14, throttle block；15, mounting groove；16、
Medial surface；17, the first convex globoidal；18, the first cancave cambered surface；19, lateral surface；20, the second cancave cambered surface；21, the second convex globoidal；22、
Spool；23, endoporus；24, armature seat；25, spacing collar；26, card slot；27, valve core installation cavity；28, armature seat installation cavity；29, under
Heavy platform terrace；30, oily channel；31, coil；32, winding slot；33, coil rack；34, wire lead slot；35, lead；36, pedestal；
37, connecting terminal；38, interface；39, circular ring shape mounting portion；40, inner ring hole；41, wire lead slot first；42, wire lead slot second
Portion；43, limit protrusion；44, clamp port；45, storage tank；46, limiting slot；47, limited block；48, first annular slot；49, first
Sealing ring；50, the second annular groove；51, the second sealing ring；52, third annular groove；53, third sealing ring；54, defining flange；
55, flange.
Specific implementation mode
The essence that those skilled in the art convey them to work to others skilled in the art is will hereinafter use to lead to
The term being often used describes the concept of the invention of the disclosure.However, these concept of the invention can be presented as many different forms, because
And it should not be considered limited to embodiments described herein.These embodiments are provided so that present disclosure is more detailed and complete
It is whole, and its range for including completely is conveyed to those skilled in the art.It must also be noted that these embodiments do not have to be mutually exclusive.Come
It may be assumed that into from the component of one embodiment, step or element and may be present or use in another embodiment.This public affairs is not being departed from
In the case of the range for the embodiment opened, it can substitute shown with diversified alternative and/or equivalent implementations and retouch
The specific embodiment stated.The application is intended to any modification or modification of covering embodiments discussed herein.For the skill of this field
Obviously alternative embodiment can be put into practice for art personnel using only some aspects in described aspect.Herein for explanation
Purpose, specific number, material and configuration are described in embodiment, however, these are special no by the technical staff in field
In the case of determining details, alternative embodiment can also be put into practice.In other cases, it may be omitted or simplified well-known
Feature, so as not to make illustrative embodiment be difficult to understand.
In addition, term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply phase
To importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " being equipped with ", " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements；Term " fixation " can be that bolt is fixedly connected and/or screw is fixedly connected and/or blocks
It connects and/or welds, for the ordinary skill in the art, can understand above-mentioned term in the present invention with concrete condition
Concrete meaning.
Such as Fig. 1-11, the present processes fuel injector to be assembled, including
One end of valve body 1, the valve body 1 is equipped with injector 2；
Valve deck 3, the valve deck 3 are fixedly connected with valve body 1, and 3 inside of the valve deck has the circle extended towards 2 direction of injector
Annulated column 4,
Valve hole part 5, the valve hole part 5 is slidably connected in valve body 1, under normality, valve hole part 5 and annulus column 4 it
Between there is interval 6, one end of valve hole part 5 and the abutting of injector 2 simultaneously close injector 2；
Drive component for driving valve hole part 5 to act；The driving component includes being used for 4 magnetic of annulus column when being powered
The coil component 7 of change and connecting part 8 for being powered to coil component 7, the coil component 7 are fixed on the outer of annulus column 4
On periphery, the connecting part 8 is fixedly connected with coil component 7, and after annulus column 4 is magnetized, valve hole part 5 is towards annulus column
4 movements；
The fuel injector further includes
Adjusting screw 9, the adjusting screw 9 are threadedly coupled with valve deck 3, and the adjusting screw 9, which has, passes into oil
The head piece 10 of valve hole part 5；
Spring 11, one end and the valve hole part 5 of the spring 11 push against, the other end and the adjusting screw 9 of the spring 11
It pushes against.
With the above structure, it has the following advantages that：On the one hand, can be according to actual duty requirements, and adjust and adjust
Screw 9, to meet the requirement of specific works operating mode.On the other hand, different lead to can be formulated according to the different demands of client
Electroresponse time preset range value is obtained with the response time that is powered different product by adjusting adjusting screw 9, meets production
The diversified demand of product.Also it just says, adjusting screw 9 need to be only adjusted using same structure and is obtained with the response time difference that is powered
Product, save production cost, and facilitate adjusting.
Such as Fig. 3, the valve body 1 and there is axially-extending portion 12, the axially-extending portion 12 positioned at one end of injector 2
End there is the oil outlet 13 expanded outwardly, the oil outlet 13 to be connected to injector 2, the top of the valve hole part 5 is consolidated
Surely it is connected with throttle block 14, the throttle block 14 is located at 13 position of oil outlet, between the throttle block 14 and oil outlet 13
Distance H on axis direction is more than interval 6.The specific throttle block 14 on the axis direction between oil outlet 13 at a distance from
H is to be spaced between 1.3 times to 5 times of 6.Such as：Distance H is be spaced 6 1.3 times or 2 times or 3 times or 5 times.
The top of the valve hole part 5 is fixedly connected with throttle block 14, and the top of the valve hole part 5 is equipped with installation
Slot 15, the throttle block 14 are connected with the interference fit of mounting groove 15.
Such as Fig. 4, the oil outlet 13 has medial surface 16, and it is the first convex globoidal that inner one end is leaned in the medial surface 16
17, outer one end is the first cancave cambered surface 18, the 18 tangent connection of the first convex globoidal 17 and the first cancave cambered surface in the medial surface 16；
The throttle block 14 is lateral surface 19 towards the side of medial surface 16, and it is the second cancave cambered surface that inner one end is leaned in the lateral surface 19
20, outer one end is the second convex globoidal 21, the 20 tangent connection of the second convex globoidal 21 and the second cancave cambered surface in the lateral surface 19.
In this way, in oil spout, the cooperation of medial surface 16 and lateral surface 19 can form the mist of oil of tumble flow shape, improve fuel performance.
The valve hole part 5 includes spool 22 and the columnar armature seat 24 with endoporus 23, on 23 circumferential surface of the endoporus
Protrusion is equipped with spacing collar 25, and 11 spacing collar 25 of the spring abuts；The spacing collar 25 forms card slot 26, spool 22 with endoporus 23
End and card slot 26 interference fit connect, the valve body 1 is equipped with valve core installation cavity 27 and armature seat installation cavity 28, the valve
Core 22 is slidably connected in valve core installation cavity 27, and the armature seat 24 is slidably connected in armature seat installation cavity 28.
The peripheral surface of the spool 22 is equipped with sinking step surface 29, the side of the sinking step surface 29 and valve core installation cavity 27
Face formed oily channel 30.
The coil component 7 include coil 31 and the coil rack 33 with winding slot 32, the coil 31 be fixed on around
In wire casing 32；The coil rack 33 is set on annulus column 4, and side of the coil rack 33 far from injector 2 is set side by side
There are two wire lead slot 34, there are the coil 31 two leads 35, two leads 35 to be located in two wire lead slots 34；
The connecting part 8 includes pedestal 36 and two connecting terminals 37, and the side of the pedestal 36 is equipped with interface 38, the pedestal
36 are socketed with the top of coil rack 33, and two connecting terminals 37 are fixed on pedestal 36, and the one of the connecting terminal 37
End is connect with lead 35, and the other end of the connecting terminal 37 is located in interface 38.The pedestal 36 and coil rack 33
Top socket can easily assemble pedestal 36 and coil rack 33, and interface 38 is located at the side of pedestal 36, so as to
It powers from side to fuel injector wiring, avoids and cause fuel injector and other mounting portions from the wiring of fuel injector top in the prior art
The assembly of part is inconvenient.
The pedestal 36 and the top socket of coil rack 33 refer to that the top of the coil rack 33 is pacified equipped with circular ring shape
There is the inner ring hole 40 being adapted with circular ring shape mounting portion 39, the inner ring hole 40 to pacify with circular ring shape for dress portion 39, the pedestal 36
Dress portion 39 is socketed, and two wire lead slots 34 are located on circular ring shape mounting portion 39.In this way, in assembly, inner ring hole 40 is socketed
Assembly is just completed on circular ring shape mounting portion 39, it is seen that easy to assembly.
The length of the one end of the connecting terminal 37 far from interface 38 is more than on 39 axis direction of circular ring shape mounting portion
Highly, when inner ring hole 40 is socketed on circular ring shape mounting portion 39, the one end of connecting terminal 37 far from interface 38 is in wire lead slot
The effect of offseting of 34 end faces is lower and is bent to wire lead slot 34, and the connecting terminal 37 is welded with lead 35.In conjunction with this structure
Afterwards, since the length of the one end of the connecting terminal 37 far from interface 38 is more than the height on 39 axis direction of circular ring shape mounting portion
Degree, 37 part of such connecting terminal are located in inner ring hole 40, in assembly, since the size of connecting terminal 37 is smaller and plastic
Property deformation, during inner ring hole 40 and circular ring shape mounting portion 39 are socketed, the one end of connecting terminal 37 far from interface 38 exists
It can manually be broken curved in automatic bending to wire lead slot 34, to eliminate under the effect of offseting of 34 end face of wire lead slot, improve dress
With efficiency.
Such as Fig. 9, the wire lead slot 34 includes the wire lead slot first 41 being connected together and wire lead slot second 42, described
The width that wire lead slot is first 41 is more than wire lead slot second 42, and the wire lead slot first 41 is located at wire lead slot second 42
Outside, lead 35 are located in wire lead slot second 42, and the width of end of the connecting terminal 37 far from interface 38 is more than wire lead slot
Second 42 width but width of first 41 less than wire lead slot.Not when using this structure, it is possible to can exist following
Problem：Inner ring hole 40 generates phase with circular ring shape mounting portion 39 during inner ring hole 40 is socketed with circular ring shape mounting portion 39 when assembly
To movement, connecting terminal 37 may contradict lead 35 and the bottom that makes lead 35 slide into wire lead slot 34 after plastic deformation
End, can thus influence to weld.Or people is needed to hold lead 35 in assembly, to influence efficiency of assembling.And use this
After kind of structure, lead 35 is located in wire lead slot second 42, and when assembly, connecting terminal 37 cannot be contradicted to wire lead slot second 42
It is interior, so connecting terminal 37 will not contradict lead 35 after plastic deformation, to which lead 35 is unaffected.
Alternatively, such as Figure 10, it is opposite on two madial walls of the wire lead slot 34 to be equipped with limit protrusion 43, the limit protrusion
43 form clamp port 44, and the lead 35 is located at the inner end of clamp port 44, end of the connecting terminal 37 far from interface 38
Width be more than clamp port 44 width but less than wire lead slot 34 width.After this structure, lead 35 is located at clamp port
44 inner end, when assembly, connecting terminal 37 cannot be contradicted to the inner end of clamp port 44, so connecting terminal 37 is after plastic deformation
Lead 35 will not be contradicted, to which lead 35 is unaffected.
It is accommodating there are two being set such as Fig. 7, the upper surface of the pedestal 36 and in the corresponding position of two wire lead slots 34
The end accommodation of slot 45, the connecting terminal 37 and lead 35 is filled in storage tank 45 in the storage tank 45 and wire lead slot 34
It is marked with glue.In this way, 45 one side of storage tank can stay space to the welding job of connecting terminal 37 and lead 35, facilitate weldering
Connect technique；On the other hand, the end accommodation of the connecting terminal 37 and lead 35 is in can be to avoid by outer in storage tank 45
Boundary influences, and also avoids end occupy-place caused by assembly of connecting terminal 37 and lead 35, the position of each element of reasonable Arrangement.
Such as Fig. 5,7,8,11, location structure is equipped between the pedestal 36 and circular ring shape mounting portion 39；The location structure
Including the limiting slot 46 being located on circular ring shape mounting portion 39 and the limited block 47 being located on pedestal 36, the limited block 47 and limit
Slot 46 is clamped.Certainly, limited block 47 and the position of limiting slot 46 can be interchanged.In this way, in inner ring hole 40 and circular ring shape mounting portion
39 assembly when can be accurately positioned, make the one end of connecting terminal 37 far from interface 38 just the phase of 34 end face of wire lead slot instead
With lower in bending to wire lead slot 34, to easy to assembly.In addition, fuel injector in use, location structure can ensure pedestal
36 stablize relatively with circular ring shape mounting portion 39, ensure job stability.
The first liquid sealing structure is equipped between the coil rack 33 and valve body 1；First liquid sealing structure includes setting
First annular slot 48 in valve body 1 and the first sealing ring 49 being connected in first annular slot 48.
The second liquid sealing structure is equipped between the coil rack 33 and annulus column 4；Second liquid sealing structure includes
It annular groove 50 and the second sealing ring 51 for being connected in the second annular groove 50 to be located at the second of 33 inner end of coil rack.
Third liquid sealing structure is equipped between the adjusting screw 9 and annulus column 4；The third liquid sealing structure includes setting
Third annular groove 52 on 9 peripheral surface of adjusting screw and the third sealing ring 53 being connected in third annular groove 52.
The valve deck 3 is fixedly connected with valve body 1, and the end of the valve body 1 is equipped with the defining flange 54 being arranged outwardly,
The valve deck 3 and the flange 55 with bending and molding at 54 position of defining flange, the flange 55 are clamped with defining flange 54.
In this way, the mode of plastic forming has the advantages that stable structure and at low cost.
Such as Figure 12, the assembly method of above-mentioned fuel injector includes the following steps：
S1. connecting part 8 is formed：Pedestal 36 and two injection mouldings of connecting terminal 37 are obtained into connecting part 8, connect at this time
37 part of line terminals is located in inner ring hole 40；
S2. coil component 7 is formed：Coil 31 is fixed in winding slot 32, two leads 35 of coil 31 are located at
In the wire lead slot second 42 of two wire lead slots 34；
S3. drive component is formed：The inner ring hole 40 of pedestal 36 is socketed on circular ring shape mounting portion 39, connecting terminal 37 is remote
One end from interface 38 can be bent under the effect of offseting of 34 end face of wire lead slot to wire lead slot 34；Later by lead 35 with
Connecting terminal 37, which is broken, curved to be placed in storage tank 45 and welds；Glue is perfused in wire lead slot 34 and storage tank 45 later；
S4. valve hole part 5 is formed：Armature seat 24 is fixed on fixture, press mounting tool acts on sinking step surface 29 will
The end of spool 22 is connected with the interference fit of card slot 26；
S5. spool 22 is fitted into the valve core installation cavity 27 of valve body 1, spool installation is acted on using press mounting tool later
The end face of chamber 27 simultaneously connects throttle block 14 and the interference fit of mounting groove 15；
S6. the first sealing ring 49 is connected in first annular slot 48；
S7. drive component is placed in valve body 1 and coil rack 33 is set in armature seat 24；
S8. the second sealing ring 51 is connected in the second annular groove 50；
S9. annulus column 4 is inserted into coil rack 33 and valve deck 3 is fixedly connected with valve body 1；
S10. spring 11 is placed in annulus column 4, third sealing ring 53 is connected in third annular groove 52, will adjusted
Screw 9 is threadedly coupled with valve deck 3.
After the above method, have the following advantages that：
1, be located in this way can be to avoid latter step in the wire lead slot second 42 of two wire lead slots 34 for two leads 35
Rapid middle connecting terminal 37 may contradict lead 35 and the bottom end that makes lead 35 slide into wire lead slot 34 after plastic deformation, be
Later step carries out place mat；
2, the one end of connecting terminal 37 far from interface 38 can be bent under the effect of offseting of 34 end face of wire lead slot to drawing
To which be equivalent to can be with 37 automatic bending of connecting terminal, to easy to assembly and improve efficiency of assembling in wire casing 34；
3, press mounting tool acts on sinking step surface 29 and has allowed for the wall thickness at 29 position of sinking step surface of spool 22
It is larger, it can prevent the spool 22 in assembly from deforming, guarantee is carried out for the product quality of fuel injector；
4, press mounting tool acts on the end face of valve core installation cavity 27 to allow for the end face of valve core installation cavity 27 is not important
End face, effect not only facilitate assembly but also do not interfere with product quality on it；Throttle block 14 and the interference fit of mounting groove 15 are connected
It connects and allows for throttle block 14 it is not possible that be made of one molding structure with spool 22, if throttle block 14 is made of one into spool 22
Type structure cannot be assembled on valve body 1, and interference fit connection can ensure connection structure intensity, and technique is convenient；
The assembly method step of the fuel injector of the application is all linked with one another as a result, makes again on the basis of ensureing product quality
Obtain simple process, that is to say, that a kind of assembly method of new fuel injector is produced, with substantive distinguishing features outstanding and significantly
Progress.
In step S3, first lead 35 can be connect with connecting terminal 37, break later it is curved be placed in storage tank 45, later
Welding；It is of course also possible to first connect lead 35 with connecting terminal 37, weld later, breaks curved be placed in storage tank 45 later
Situations such as.Those skilled in the art can select as the case may be, and the application makees concrete restriction not to this.
Valve deck 3 is fixedly connected with valve body 1 in step S9 refers to, 3 edge bending and molding of valve deck, which is formed flange 55, to be connected to
On the defining flange 54 of valve body 1.In this way, bending and molding formed flange 55 mode use plastic forming mode, stable structure, at
Type is convenient.
The assembly method of fuel injector further includes following steps：
S11. it debugs：The energization response time of fuel injector is tested, if the energization response time that test obtains is less than preset value
Range then turns adjusting screw 9 outward；If the energization response time that test obtains is more than values, spiral shell will be adjusted
Nail 9 inwardly turns；Until when the energization response time that test obtains meets values, stopping turns adjusting screw 9.This
Sample can be debugged before manufacture, form product.Certainly, specifically different preset can be formulated according to the different demands of client
Value range can thus adjust out the different product of parameter, meet the diversified demand of product.
The assembly method of fuel injector further includes following steps：
S12. after completing debugging, glue is instilled in adjusting screw 9 and 3 threaded connection place of valve deck.In this manner it is ensured that adjusting
Screw 9 will not loosen when in use and position changes, and ensure the stability in use of fuel injector.
Between step S11 and step S12, further include：Head piece 10 in adjusting screw 9 is used into plug.In this way, drop
Enter glue glue can be ensured not flow into head piece 10 and fuel injector inside is impacted.
The above is only preferably feasible implementation example of the invention, cannot therefore be the interest field for limiting to the present invention,
For those skilled in the art, other all made with technical scheme of the present invention and technical concept are various corresponding
Change should all belong within the protection domain of the claims in the present invention.
Claims (5)
1. the assembly method of fuel injector, which is characterized in that include the following steps：
S1. connecting part (8) is formed：Pedestal (36) and two connecting terminal (37) injection mouldings are obtained into connecting part (8), this
When connecting terminal (37) partly be located at inner ring hole (40) in；
S2. coil component (7) is formed：Coil (31) is fixed in winding slot (32), two leads (35) point of coil (31)
Not Wei Yu two wire lead slots (34) wire lead slot second (42) in；
S3. drive component is formed：The inner ring hole (40) of pedestal (36) is socketed on circular ring shape mounting portion (39), connecting terminal
(37) one end far from interface (38) can be bent under the effect of offseting of wire lead slot (34) end face to wire lead slot (34)；It
Lead (35) and connecting terminal (37) are broken afterwards and curved be placed in storage tank (45) and weld；Later in wire lead slot (34) and accommodating
Glue is perfused in slot (45)；
S4. valve hole part (5) is formed：Armature seat (24) is fixed on fixture, press mounting tool acts on sinking step surface (29)
The end of spool (22) and card slot (26) interference fit are connected；
S5. spool (22) is fitted into the valve core installation cavity (27) of valve body (1), spool peace is acted on using press mounting tool later
Behave affectedly (27) end face and by throttle block (14) and mounting groove (15) interference fit connect；
S6. the first sealing ring (49) is connected in first annular slot (48)；
S7. drive component is placed in valve body (1) and coil rack (33) is set in armature seat (24)；
S8. the second sealing ring (51) is connected in the second annular groove (50)；
S9. annulus column (4) is inserted into coil rack (33) and valve deck (3) is fixedly connected with valve body (1)；
S10. spring (11) is placed in annulus column (4), third sealing ring (53) is connected in third annular groove (52), it will
Adjusting screw (9) is threadedly coupled with valve deck (3).
2. the assembly method of fuel injector described in accordance with the claim 1, which is characterized in that valve deck (3) and valve body (1) in step S9
It is fixedly connected and refers to, valve deck (3) edge bending and molding, which is formed flange (55), to be connected on the defining flange (54) of valve body (1).
3. the assembly method of fuel injector described in accordance with the claim 1, which is characterized in that further include following steps：
S11. it debugs：The energization response time of fuel injector is tested, if the energization response time that test obtains is less than values,
Then adjusting screw (9) is turned outward；If the energization response time that test obtains is more than values, by adjusting screw
(9) it inwardly turns；Until when the energization response time that test obtains meets values, stopping turns adjusting screw (9).
4. the assembly method of fuel injector described in accordance with the claim 3, which is characterized in that further include following steps：
S12. after completing debugging, glue is instilled in adjusting screw (9) and valve deck (3) threaded connection place.
5. the assembly method of fuel injector according to claim 4, which is characterized in that between step S11 and step S12,
Further include：Head piece (10) in adjusting screw (9) is used into plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810184718.9A CN108561251B (en) | 2018-03-07 | 2018-03-07 | Method for assembling oil injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810184718.9A CN108561251B (en) | 2018-03-07 | 2018-03-07 | Method for assembling oil injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108561251A true CN108561251A (en) | 2018-09-21 |
| CN108561251B CN108561251B (en) | 2020-09-08 |
Family
ID=63532488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810184718.9A Expired - Fee Related CN108561251B (en) | 2018-03-07 | 2018-03-07 | Method for assembling oil injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108561251B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220723A (en) * | 1997-03-26 | 1999-06-23 | 罗伯特·博施有限公司 | Fuel-injection valve, method for producing and use of the same |
| CN101072942A (en) * | 2004-12-07 | 2007-11-14 | 罗伯特·博世有限公司 | Injection valve |
| CN101166899A (en) * | 2005-04-28 | 2008-04-23 | 罗伯特·博世有限公司 | Fuel injection valve and method for the assembly thereof |
| US8267333B2 (en) * | 2008-01-23 | 2012-09-18 | Caterpillar Inc. | Fuel injector and method of assembly therefor |
| US8316825B1 (en) * | 2008-08-04 | 2012-11-27 | French Iii Jack M | Adjustable racing injector |
| US20130152886A1 (en) * | 2011-12-14 | 2013-06-20 | Caterpillar, Inc. | Method Of Extending Engine Service Life And Angular Displacement-Limiting Clip For Same |
| CN103184959A (en) * | 2011-12-30 | 2013-07-03 | 联合汽车电子有限公司 | Armature-needle valve assembly, and molding assembling method and assembling tool thereof |
| CN103334859A (en) * | 2013-07-03 | 2013-10-02 | 上海理工大学 | Oil atomizer and manufacturing method thereof |
-
2018
- 2018-03-07 CN CN201810184718.9A patent/CN108561251B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220723A (en) * | 1997-03-26 | 1999-06-23 | 罗伯特·博施有限公司 | Fuel-injection valve, method for producing and use of the same |
| CN101072942A (en) * | 2004-12-07 | 2007-11-14 | 罗伯特·博世有限公司 | Injection valve |
| CN101166899A (en) * | 2005-04-28 | 2008-04-23 | 罗伯特·博世有限公司 | Fuel injection valve and method for the assembly thereof |
| US8267333B2 (en) * | 2008-01-23 | 2012-09-18 | Caterpillar Inc. | Fuel injector and method of assembly therefor |
| US8316825B1 (en) * | 2008-08-04 | 2012-11-27 | French Iii Jack M | Adjustable racing injector |
| US20130152886A1 (en) * | 2011-12-14 | 2013-06-20 | Caterpillar, Inc. | Method Of Extending Engine Service Life And Angular Displacement-Limiting Clip For Same |
| CN103184959A (en) * | 2011-12-30 | 2013-07-03 | 联合汽车电子有限公司 | Armature-needle valve assembly, and molding assembling method and assembling tool thereof |
| CN103334859A (en) * | 2013-07-03 | 2013-10-02 | 上海理工大学 | Oil atomizer and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108561251B (en) | 2020-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100623402B1 (en) | Fuel Injection valve | |
| JPS58133469A (en) | Solenoid assembly and production thereof | |
| CN105684268B (en) | Motor with clamp flange | |
| US20130186986A1 (en) | Fuel Injector Having a Reduced Number of Components | |
| CN103334859A (en) | Oil atomizer and manufacturing method thereof | |
| CN207892751U (en) | Fuel injector | |
| CN108757251A (en) | Fuel injector | |
| GB2080627A (en) | Electromagnetic fuel injector with adjustable armature spring | |
| CN108561251A (en) | The assembly method of fuel injector | |
| JP2006017112A (en) | Method for providing fuel injector for internal combustion engine and injector manufactured by this method | |
| JPH054269Y2 (en) | ||
| CN207892750U (en) | A kind of electric-controlled fuel injector | |
| CN207999322U (en) | Electric-controlled fuel injector | |
| US20060021608A1 (en) | Stick ignition coil apparatus for ignition plug | |
| CA1124602A (en) | Injection timing nozzle with poppet valve | |
| CN1676922B (en) | Electro-magnetic driver and fuel injection valve using the same | |
| JP2007107652A (en) | Solenoid valve, and manufacturing method of same | |
| CN205984615U (en) | Disjunctor formula ignition coil | |
| CN100494665C (en) | Injection valve and manufacturing method for the same | |
| JP2005195015A (en) | Fuel injection valve | |
| US6302340B1 (en) | Post electrical plug assembly | |
| KR20160069534A (en) | Fuel rail having high intensity assembling structure | |
| CN204783404U (en) | Direct injection high pressure fuel pump | |
| CN204783403U (en) | Take direct injection high pressure fuel pump of filter screen | |
| CN209959383U (en) | Electric control fuel micro-injection nozzle of two-stroke gasoline engine of unmanned aerial vehicle |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200908 |