CN101975129B - Electronic electromagnetic petrol injection valve - Google Patents
Electronic electromagnetic petrol injection valve Download PDFInfo
- Publication number
- CN101975129B CN101975129B CN2010102800817A CN201010280081A CN101975129B CN 101975129 B CN101975129 B CN 101975129B CN 2010102800817 A CN2010102800817 A CN 2010102800817A CN 201010280081 A CN201010280081 A CN 201010280081A CN 101975129 B CN101975129 B CN 101975129B
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- Prior art keywords
- iron core
- injection valve
- magnet
- jet pipe
- electronic type
- 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.)
- Expired - Fee Related
Links
- 238000002347 injection Methods 0.000 title claims abstract description 45
- 239000007924 injection Substances 0.000 title claims abstract description 45
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000007921 spray Substances 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 230000008676 import Effects 0.000 claims description 32
- 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 10
- 239000000945 filler Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 abstract description 7
- 230000004044 response Effects 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 description 12
- 239000003921 oil Substances 0.000 description 12
- 239000000295 fuel oil Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses an electronic electromagnetic petrol injection valve. The valve comprises a spray pipe inlet, wherein an iron core is arranged in the spray pipe inlet; a coil is wound on the iron core and connected with an electrode plate; a spring is arranged in the iron core; one end of the spring is pressed against the inside of the iron core, while the other end is pressed against a magnet; a bushing is sleeved outside the magnet and hermetically connected with the spray pipe inlet; an injection valve body is sleeved outside the bushing; the upper end of the injection valve body sleeves the bushing, while the lower end is provided with a seat body; the seat body is provided with a valve hole; and a steel ball which is matched with the valve hole and used for closing and releasing the valve hole is fixed at the front end of the magnet. The injection valve has accurately-controlled oil throughput, fast dynamic response, high product performance and stability, a simple structure and low processing cost.
Description
Technical field
The present invention relates to a kind of electromagnetic injection valve, relate in particular to the injection valve that a kind of electric-controlled petrol engine fuel injection system uses.
Background technique
The electronic gasoline injection valve is the core component of automotive electronic control system gasoline injection system, and the burning and the emission performance of automobile had significant effects.But electronic gasoline injection valve accurate measurement fuel oil also forms fuel spray.Because the accuracy of spray of mist of oil is had relatively high expectations now; Simultaneously because environment such as in-engine HTHP vibrations are abominable; For the required precision of injection valve, stability requirement is all very high, so the machining accuracy and the cost of production of product proposed higher requirement.The electronic gasoline injection valve arrangement that is adopted at present is complicated, and processing cost is high, efficient is low.
Summary of the invention
The object of the present invention is to provide a kind of fuel injection quantity accurately to control, dynamic response is fast, and the product performance good stability is simple in structure, the electromagnetic fuel injection valve that processing cost is low.
Technological scheme of the present invention: a kind of electronic type gasoline electromagnetic injection valve, comprise the jet pipe import, be provided with iron core in the jet pipe import; Be wound with coil on the iron core, coil connection electrode sheet is provided with spring in the iron core; Spring one end withstands in the iron core, and the other end withstands magnet, and magnet is with sleeve pipe outward; Sleeve pipe is connected with the jet pipe inlet seal, and the cover tube outside is with the spray valve body, and sleeve pipe is entangled in spray valve body upper end; The lower end is a pedestal, has valve opening on the pedestal, and the magnet front end is fixed with being used to of matching with valve opening and closes the steel ball with relief valve aperture.
As preferably, be provided with spring seat in the said iron core, be provided with step hole in the spring seat, spring one end withstands the step of step hole both sides, and the other end withstands magnet.
As preferably, described jet pipe import and sleeve pipe adopt the stainless steel precision tube drawing.
As preferably, described coil is wrapped on the coil carrier, and coil carrier is enclosed within the jet pipe import, and iron core is surrounded.
As preferably, described coil carrier is outside equipped with magnet case, and magnet case is fixed in the jet pipe import.
As preferably, described valve opening is adopting the cambered surface that matches with steel ball with the contacting point of steel ball.
As preferably, described spring seat adopts non-magnetic conduction spring seat, and is connected with the iron core interference fit.
As preferably, described jet pipe import oil inlet end is provided with seal ring, and seal ring is provided with the stamping forming back-up ring of sheetmetal, and back-up ring is stuck in the locating slot internal fixation seal ring of sleeve pipe.
As preferably, the filler opening of described iron core is processed into taper mouth.
Electromagnetic injection valve project organization of the present invention is simple, makes work simplification, and the assembling and positioning between part is accurate, can under condition cheaply, can produce the product of stable performance in enormous quantities, its concrete advantage have following some:
1, structural design is simple, and jet pipe import and sleeve pipe are processed by the stainless steel precision tube drawing, and direct surfacing car locating slot after the blanking has been given up the redundancy processing of the boring of machining in the past.
2, back-up ring adopts the sheetmetal impact briquetting, is used for the location of seal ring.
3, the filler opening of iron core is processed into taper mouth, prevents high pressure fuel turbulization herein.
4, spring seat adopts non-magnet material processing, is used for the location of spring, and spring seat places in the two stage steps hole of iron core, and seat surface combines with step, is convenient to accurate location, prevents that spring seat from squinting.
5, be provided with step-like placement hole in the spring seat, spring one end withstands the step of placement hole both sides, and the other end withstands magnet, and spring can very accurately stable being positioned in the spring seat.
6, magnet is processed by clamping of permeability magnetic material machining, has guaranteed the linearity of this part.Magnet one end and steel ball welding, steel ball are used for and spray the effect of playing sealing when valve body contacts, and magnet plays the effect of armature and logical oil.
7, the present invention adopt processing simple sleeve pipe as fuel oil from magnet come out after flow duct; The cover tube outside directly is with the spray valve body; The spray valve body closes the spray bar of general injection valve and spray valve body as a whole, has guaranteed its machining accuracy and installation precision, has reduced manufacturing procedure.
8, can effectively prevent the magnetic circuit short circuit; Technological scheme of the present invention is installed the spring seat that a non-magnet material that is used for retaining spring is processed in the iron core of electromagnetic injection valve; This spring seat one side is retaining spring accurately, and iron core and magnet magnetic circuit are broken off.Because the existence of non-magnetic conduction spring seat; Can prevent the magnetic circuit short circuit that cause owing to spring injection valve inside; When electric excitation, reduced the adverse effect of permeability magnetic material coercivity, thereby improved the dynamic response performance of electromagnetic injection valve magnet steel ball assembly seating velocity.
Description of drawings
Fig. 1 is an explosive view of the present invention;
Fig. 2 is a side schematic view of the present invention;
Fig. 3 is an another side of the present invention schematic representation;
Fig. 4 is the A-A sectional view of Fig. 2;
Fig. 5 is the B-B sectional view of Fig. 3;
Fig. 6 is the structural representation of magnet of the present invention;
Fig. 7 is the A-A sectional view of Fig. 6;
Fig. 8 is the cross-sectional view of spring seat of the present invention;
Fig. 9 is the pedestal generalized section of spray valve body of the present invention;
Figure 10 is the matching relationship schematic representation between magnet of the present invention and the spray valve body;
Figure 11 is the cross-sectional view of iron core of the present invention;
Figure 12 is the assembling schematic representation of iron core of the present invention and spring seat.
Embodiment
Shown in Fig. 1-12, a kind of electronic type gasoline electromagnetic injection valve comprises jet pipe import 4, is provided with iron core 5 in the jet pipe import 4; Be wound with coil on the iron core 5, coil connection electrode sheet 14 is provided with spring 7 in the iron core 5; Spring 7 one ends withstand in the iron core 5, and the other end withstands magnet 11, the magnet 11 outer sleeve pipes 8 that are with; Sleeve pipe 8 is tightly connected with jet pipe import 4, and sleeve pipe 8 outsides are with spray valve body 9, and sleeve pipe 8 is entangled in spray valve body 9 upper ends; The lower end is a pedestal 19, has valve opening 20 on the pedestal 19, and magnet 11 front ends are fixed with being used to of matching with valve opening 20 and close the steel ball 12 with relief valve aperture 20.Be provided with spring seat 6 in the said iron core 5, be provided with step hole 61 in the spring seat 6, spring 6 one ends withstand the step of step hole both sides, and the other end withstands magnet 11.Described jet pipe import 4 is adopted the stainless steel precision tube drawing with sleeve pipe 8.Coil is wrapped on the coil carrier 13, and coil carrier 13 is enclosed within the jet pipe import 4, and iron core 5 is surrounded.Described coil carrier 13 is outside equipped with magnet case 15, and magnet case 15 is fixed in the jet pipe import 4.Described valve opening 20 is adopting the cambered surface that matches with steel ball with the contacting point of steel ball 12.Spring seat 6 adopts non-magnetic conduction spring seat, and is connected with the iron core interference fit.Jet pipe import 4 oil inlet ends are provided with seal ring 2, and seal ring 2 is provided with the stamping forming back-up ring 18 of sheetmetal, and back-up ring 18 is stuck in the locating slot internal fixation seal ring of sleeve pipe 8.The filler opening of iron core 5 is processed into taper mouth 51.
Gasoline gets into injection valve through the filter screen 22 of jet pipe import 4; Jet pipe import 4 adopts smart tube drawing directly to process, and iron core 5 places in the jet pipe import 4, and both are by a spot-welded on is fixed; Shown in figure 11; The filler opening of iron core 5 is a taper mouth 51, makes open the mobile of gasoline that more help of inlet, can prevent high pressure fuel turbulization herein.Jet pipe import 4 outsides are wound with coil and surround iron core 5, and coil can also be through on coil carrier 13, and coil carrier 13 is fixed on jet pipe import 4 outsides; Coil outside can also be provided with magnet case 15, and magnet case 15 is fixed in the jet pipe import 4, and the magnetic after can the intensifier coil energising reduces the number of turn of coil.Like Figure 11,12, iron core 5 machined go out step-like placement hole 52, and spring seat 6 one ends are arranged in the placement hole 52 of iron core 5 inside; Be connected with iron core 5 interference fit, against 7 on spring seat 6 the other ends has step hole 61 in the spring seat 6; Spring 7 withstands the step of step hole 61 both sides; Spring 7 the other ends head on magnet 11, are with sleeve pipe 8 outside the magnet 11, and jet pipe import 4 one ends place in the step hole of offering in the sleeve pipe 8; Fix by laser bonding, be tightly connected between sleeve pipe 8 and the jet pipe import 4 like this; Magnet 11 front ends are welded with steel ball 12, and steel ball 12 is a spheroid, after steel ball 12 is welded on the magnet 11, carry out grinding along magnet 11 axial directions, with wearing into the plane around the spheroid.Sleeve pipe 8 outsides are with spray valve body 9, and sleeve pipe 8 is entangled in spray valve body 9 upper ends, and the lower end is a pedestal 19; Have valve opening 20 on the pedestal 19, steel ball 12 is arranged in the valve opening 20, and pedestal 19 fronts of spray valve body 9 are provided with spray orifice net 10; Spray orifice net 10 is by the sheetmetal impact briquetting; Be drilled with oblique aperture on the thin plate, all parts are tested after assembling, and are placed in the injection moulding die cavity 16 after qualified and encapsulate injection moulding.
Like Fig. 4,5; In the time of engine operation; Fuel oil enters in the jet pipe import 4 from the filter screen 22 of oil pipe through jet pipe import 4, enters into magnet 11 along iron core 5, spring seat 6 then, is come out by the fuel-displaced seam of magnet 11 both sides; Get into sleeve pipe 8, fuel oil just is filled in sleeve pipe 8 and the spray valve body 9 like this.When electromagnetic injection valve was not received electromagnetic signal, spring 7 withstood magnet 11, and steel ball 12 fits tightly with the valve opening 20 that sprays on the valve body 9, not oil spout this moment.When electrode slices 14 energized of electromagnetic injection valve, behind the coil electricity, iron core 5 generation magnetic fields; Because the effect of magnetic force; Magnet 11 is picked up by electromagnetic force, and the steel ball 12 of magnet 11 front ends disseats, and high pressure oil comes out from the fuel-displaced seam of magnet 11; In the valve opening 20 that sleeve pipe 8 gets on the valve body 19 that sprays valve body 9, by 10 ejections of spray orifice net.
After the coil blackout, magnetic field disappears, and magnet 11 can be withstood by spring 7 again like this; Steel ball 12 can be blocked valve opening 20 again, close valve orifice 20, and injection valve is according to the performance requirement of motor car engine; The continuous break-make electricity of coil constantly opens and closes valve opening 20, and fuel oil can constantly be ejected.
Like Fig. 9, shown in 10, valve opening 20 is being processed into S shape cambered surface 202 with the contacting point of steel ball 12, because steel ball 12 is spheroids; The position that contacts with valve opening 20 is a sphere, so valve opening 20 is designed to cambered surface with the position that steel ball 12 contacts, it is matched with the steel ball sphere is that both are tangent; Make steel ball little with the junction plane of spray valve body, sealability is better, and; Owing to can not produce wedge shape power, it resetted accurately, in addition; Along with the wearing and tearing of junction plane, new junction plane also can combine closely, thereby improves its working life.Simultaneously the jet 201 of valve opening 20 is processed into cambered surface 202 is joined and is outwardly open bell mouth shape; Fuel oil can spray more fully, the bell mouth shape below the also very convenient cambered surface 202 that can above the spray valve body, contact with steel ball processes when spraying valve body processing simultaneously.
Like Fig. 6, shown in 7, the spheroid that is fixed on the steel ball 12 on the magnet 11 is worn into the plane all around, like Figure 10; Steel ball 12 is arranged in the valve opening 20 of spray valve body 9; After gasoline comes out from the fuel-displaced seam of magnet 11, in sleeve pipe 8, down flow on the spray valve body along magnet and since steel ball 12 around wear into the plane, gasoline can be very easily along the wall of steel ball 12 along in the valve opening 20 that enter into spray valve body 9; Disseat when opening valve opening 20 when steel ball 12 like this, gasoline can be very fast from 10 ejections of spray orifice net.
Performance through durability test experimental verification injection valve of the present invention:
The present invention verifies that through durability test test conditions is under normal temperature and pressure conditions, and injection pressure is 0.4MPa, sustained firing 120 hours, and its fuel injection quantity compares with test fuel injection quantity before, sees the variation of fuel injection quantity.In order to be that experiment has comparative, the conditional electronic gasoline ejector is also done identical test, its correlation data is following:
Can know by last fuel injection quantity correlation data; The present invention has good oil spout performance and endurance quality; Promptly through behind 120 hours the sustained firing, electronics gasoline injection valve of the present invention still can keep good oil spout performance, and the oil spout error rate of front and back is mostly at 1%-2%; Do not have bigger variation, overall performance improves a lot; And after the test of traditional electrospray valve process, the variation that the oil spout performance takes place is bigger, and fuel injection quantity strengthens; Before and after the oil spout error rate mostly in that (except when just beginning to switch on, injection valve starts slower, and fuel injection quantity is less 3% or more; Error is ignored), endurance quality is relatively poor.
Claims (8)
1. an electronic type gasoline electromagnetic injection valve comprises jet pipe import (4), is provided with iron core (5) in the jet pipe import (4); Iron core is wound with coil on (5), and coil connection electrode sheet (14) is provided with spring (7) in the iron core (5); Spring (7) one ends withstand in the iron core (5), and the other end withstands magnet (11), the outer sleeve pipe (8) that is with of magnet (11); Sleeve pipe (8) is tightly connected with jet pipe import (4), and sleeve pipe (8) outside is with spray valve body (9), and sleeve pipe (8) is entangled in spray valve body (9) upper end; The lower end is a pedestal (19), has valve opening (20) on the pedestal (19), and magnet (11) front end is fixed with that being used to of matching with valve opening (20) closes and the steel ball (12) of relief valve aperture (20); Valve opening (20) is being processed into S shape cambered surface (202) with the contacting point of steel ball (12), and the jet (201) of valve opening (20) is processed into cambered surface (202) is joined and is outwardly open bell mouth shape.
2. a kind of electronic type gasoline electromagnetic injection valve according to claim 1; It is characterized in that, be provided with spring seat (6) in the said iron core (5), be provided with step hole (61) in the spring seat (6); Spring (6) one ends withstand the step of step hole both sides, and the other end withstands magnet (11).
3. a kind of electronic type gasoline electromagnetic injection valve according to claim 1 is characterized in that, described jet pipe import (4) and sleeve pipe (8) adopt the stainless steel precision tube drawing.
4. a kind of electronic type gasoline electromagnetic injection valve according to claim 1 is characterized in that described coil is wrapped on the coil carrier (13), and coil carrier (13) is enclosed within the jet pipe import (4), and iron core (5) is surrounded.
5. a kind of electronic type gasoline electromagnetic injection valve according to claim 4 is characterized in that described coil carrier (13) is outside equipped with magnet case (15), and magnet case (15) is fixed in the jet pipe import (4).
6. a kind of electronic type gasoline electromagnetic injection valve according to claim 2 is characterized in that, described spring seat (6) adopts non-magnetic conduction spring seat, and is connected with the iron core interference fit.
7. a kind of electronic type gasoline electromagnetic injection valve according to claim 1; It is characterized in that; Described jet pipe import (4) oil inlet end is provided with seal ring (2); Seal ring (2) is provided with the stamping forming back-up ring of sheetmetal (18), and back-up ring (18) is stuck in the locating slot internal fixation seal ring of jet pipe import (4).
8. a kind of electronic type gasoline electromagnetic injection valve according to claim 1 is characterized in that the filler opening of described iron core (5) is processed into taper mouth (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102800817A CN101975129B (en) | 2010-09-10 | 2010-09-10 | Electronic electromagnetic petrol injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102800817A CN101975129B (en) | 2010-09-10 | 2010-09-10 | Electronic electromagnetic petrol injection valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101975129A CN101975129A (en) | 2011-02-16 |
| CN101975129B true CN101975129B (en) | 2012-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102800817A Expired - Fee Related CN101975129B (en) | 2010-09-10 | 2010-09-10 | Electronic electromagnetic petrol injection valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN101975129B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103754365B (en) * | 2014-02-10 | 2018-03-02 | 林月洪 | It is a kind of using laser and the butterfly aircraft power source of EFI |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4946107A (en) * | 1988-11-29 | 1990-08-07 | Pacer Industries, Inc. | Electromagnetic fuel injection valve |
| CN1078668C (en) * | 1996-08-02 | 2002-01-30 | 罗伯特·博施有限公司 | Fuel injection valve and method of producing the same |
| CN1116515C (en) * | 1999-01-08 | 2003-07-30 | 罗伯特·博施有限公司 | Method for mounting valve module of fuel injector |
| CN201802532U (en) * | 2010-09-10 | 2011-04-20 | 冯政杰 | Gasoline injection solenoid valve |
-
2010
- 2010-09-10 CN CN2010102800817A patent/CN101975129B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4946107A (en) * | 1988-11-29 | 1990-08-07 | Pacer Industries, Inc. | Electromagnetic fuel injection valve |
| CN1078668C (en) * | 1996-08-02 | 2002-01-30 | 罗伯特·博施有限公司 | Fuel injection valve and method of producing the same |
| CN1116515C (en) * | 1999-01-08 | 2003-07-30 | 罗伯特·博施有限公司 | Method for mounting valve module of fuel injector |
| CN201802532U (en) * | 2010-09-10 | 2011-04-20 | 冯政杰 | Gasoline injection solenoid valve |
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| Publication number | Publication date |
|---|---|
| CN101975129A (en) | 2011-02-16 |
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Owner name: ZHEJIANG FENGSHITE EFI TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: FENG ZHENGJIE Effective date: 20120425 |
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Effective date of registration: 20120425 Address after: 321200 No. 23, hardware Avenue, Tong Qin industrial area, Zhejiang, Wuyi Patentee after: ZHEJIANG FENGSHITE ELECTRONIC FUEL INJECTION TECHNOLOGY CO., LTD. Address before: 321300 No. five, No. 6, West Tower, Chengxi Industrial Zone, Zhejiang, Yongkang Patentee before: Feng Zhengjie |
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Application publication date: 20110216 Assignee: Zhejiang Xingyu Industry and Trade Co., Ltd. Assignor: ZHEJIANG FENGSHITE ELECTRONIC FUEL INJECTION TECHNOLOGY CO., LTD. Contract record no.: 2015330000169 Denomination of invention: Electronic electromagnetic petrol injection valve Granted publication date: 20120502 License type: Exclusive License Record date: 20150618 |
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