CN102322377A - A kind of rotary flow type electromagnetism fuel injection device - Google Patents
A kind of rotary flow type electromagnetism fuel injection device Download PDFInfo
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- CN102322377A CN102322377A CN201110227331A CN201110227331A CN102322377A CN 102322377 A CN102322377 A CN 102322377A CN 201110227331 A CN201110227331 A CN 201110227331A CN 201110227331 A CN201110227331 A CN 201110227331A CN 102322377 A CN102322377 A CN 102322377A
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- jet pipe
- guide pin
- pin bushing
- flow guide
- fuel injection
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Abstract
The invention discloses a kind of rotary flow type electromagnetism fuel injection device, comprise the jet pipe import, be provided with iron core, magnet and valve rod in the jet pipe import, be wound with coil on the iron core; Coil connection electrode sheet, valve rod one end is fixed on the magnet, and the valve rod the other end is fixed with steel ball; The steel ball front end is provided with valve seat, and valve seat is fixed on the jet pipe main body, and the jet pipe main body is connected with the jet pipe inlet seal; Have the valve opening that cooperates with steel column on the valve seat, said valve stem casing is in the eddy flow guide pin bushing, and the eddy flow guide pin bushing is a cylindrical body; Its inwall is provided with step-like structure, is with spring on the valve rod, and spring one end withstands on the spring seat that is fixed on the valve rod; The spring the other end withstands on the step-like structure of eddy flow guide pin bushing inwall, has the guiding gutter of many S shapes on the outer wall of eddy flow guide pin bushing, leaves between eddy flow guide pin bushing and the valve seat to form vortex cavity at interval.Rotary flow type electromagnetic fuel oil sprayer project organization of the present invention is simple, through the effect of eddy flow guide pin bushing, makes fuel oil form eddy current, makes spray effect optimization.
Description
Technical field
The present invention relates to the rotary flow type electromagnetic fuel injector that a kind of electric control fuel oil jet system uses, relate in particular to a kind of oil sprayer of numerically controlled fuel injection system.
Background technique
Electric-controlled fuel injector 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 electric-controlled fuel injector 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 oil sprayer, stability requirement is all very high, so the machining accuracy and the cost of production of product proposed higher requirement.The electronics gasoline ejector processing cost that is adopted at present is high, and efficient is low; The oil spout effect of oil sprayer is bad simultaneously, and the oil spout precision is not enough; Notification number CN201386607Y; Open day be that the model utility that the name on January 20th, 2010 is called " swirling electronic-controlled fuel injector of gasoline engine " discloses a kind of oil sprayer; This oil sprayer adopts guide sleeve guiding fuel oil on valve seat, to form a vortex chamber at last; Make fuel oil form high speed rotating and spray, make fuel oil form the umbrella atomizing, improved the effect of oil spout from spray orifice.But this mode effect in the application process of reality is still waiting further raising.
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, the product performance good stability, and simple in structure, processing cost is low, the rotary flow type electromagnetic fuel oil sprayer that oil spout is effective.
Technological scheme of the present invention: a kind of rotary flow type electromagnetism fuel injection device, comprise the jet pipe import, be provided with iron core, magnet and valve rod in the jet pipe import, be wound with coil on the iron core; Coil connection electrode sheet, valve rod one end is fixed on the magnet, and the valve rod the other end is fixed with steel ball; The steel ball front end is provided with valve seat, and valve seat is fixed on the jet pipe main body, and the jet pipe main body is connected with the jet pipe inlet seal; Have the valve opening that cooperates with steel column on the valve seat, said valve stem casing is in the eddy flow guide pin bushing, and the eddy flow guide pin bushing is a hollow cylinder; Its inwall is provided with step-like structure, is with spring on the valve rod, and spring one end withstands on the spring seat that is fixed on the valve rod; The spring the other end withstands on the step-like structure of eddy flow guide pin bushing inwall, has the guiding gutter of many S shapes on the outer wall of eddy flow guide pin bushing, leaves between eddy flow guide pin bushing and the valve seat to form vortex cavity at interval.
As preferably, the stainless steel precision tube drawing is adopted in described jet pipe import.
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 eddy flow guide pin bushing and jet pipe import are connected fixing through the mode of welding.
As preferably, described magnet is provided with a plurality of fuel holes.
As preferably, said jet pipe main body oil outlet end is provided with preceding seal ring, and preceding seal ring is provided with the stamping forming front screen of sheetmetal, and front screen is stuck in seal ring before the locating slot internal fixation of jet pipe main body; Described jet pipe import oil inlet end is provided with the back seal ring, and back seal ring is provided with the stamping forming back-up ring afterwards of sheetmetal, and back back-up ring is stuck in seal ring behind the locating slot internal fixation of jet pipe import.
As preferably, the filler opening of described iron core is processed into taper mouth.
As preferably, said valve seat front end is provided with the spray orifice net, and the spray orifice net is drilled with the oblique aperture that is used for oil spout by the sheetmetal impact briquetting on the thin plate.
Rotary flow type electromagnetic fuel oil sprayer project organization of the present invention is simple, through the effect of eddy flow guide pin bushing, can make fuel oil in oil sprayer, form eddy current, makes spray effect optimization; But simplified processing process, 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 all component structurals are simple, and are easy to process, and is convenient to assembling.
2, the jet pipe import is 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.
3, the eddy flow guide pin bushing adopts spiral yarn shaped structure, plays the effect of water conservancy diversion.
4, the back back-up ring adopts with the profile injection molding way and forms, and is used for the location of back seal ring.
5, the filler opening of iron core is processed into taper mouth, prevents that high pressure fuel from producing turbulent flow herein.
6, be hollow in the middle of the eddy flow guide pin bushing; Be used for adorning valve rod and spring, made full use of the space, spring is loaded in the eddy flow guide pin bushing; Step-like structure by in spring seat and the eddy flow guide pin bushing is located; Spring compresses release between eddy flow guide pin bushing and spring seat, be convenient to accurate location, prevents that spring seat from squinting.
7, magnet is processed by cylinder, on end face, processes pod apertures, is convenient to the circulation of fuel oil, and magnet volume is little, and processing is simple.
8, one section cavity is arranged as vortex cavity between eddy flow guide pin bushing and the valve seat; High pressure oil gets into vortex cavity through the eddy flow groove and forms eddy current; Make the spray effect of fuel oil improve, the atomizing angle of fuel oil increases, and atomizing particle reduces; The accuracy of fuel injection quantity is higher, and then Economy, power character and the emission performance of automobile are improved.
The eddy flow groove that 9, many S types are arranged on the eddy flow guide pin bushing outer wall, fuel oil can form flow velocity eddy current faster through the passage of S type in the bottom, finally improve the spray effect of fuel oil.
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 the structural representation of eddy flow guide pin bushing.
Fig. 4 is the A-A sectional view of Fig. 2.
Fig. 5 is the structural representation of magnet of the present invention.
Fig. 6 is the B-B sectional view of Fig. 5.
Fig. 7 is an eddy flow guide pin bushing end view drawing.
Fig. 8 is the plan view of Fig. 7.
Fig. 9 is a plan view of the present invention.
Figure 10 is the plan view of Fig. 9.
Figure 11 is the C-C sectional drawing of Fig. 9.
Figure 12 is a moving element assembly structure figure of the present invention.
The sectional drawing of Figure 13 Figure 12.
Figure 14 is the plan view of Figure 12.
Embodiment
Shown in Fig. 1-12, a kind of rotary flow type electromagnetism fuel injection device comprises jet pipe import 8; Be provided with iron core 19, magnet 18 and valve rod 13 in the jet pipe import 8, be wound with coil 21 on the iron core 19, coil 21 connection electrode sheets 16; Valve rod 13 1 ends are fixed on the magnet 18, and magnet 18 welds together through welding hole 182 with valve rod 13, and valve rod 13 the other ends are fixed with steel ball 12; Steel ball 12 front ends are provided with valve seat 5, and valve seat 5 is fixed on the jet pipe main body 11, and jet pipe main body 11 is tightly connected with jet pipe import 8; Have the valve opening that cooperates with steel column 12 on the valve seat 5, said valve rod 13 is enclosed within the eddy flow guide pin bushing 7, and eddy flow guide pin bushing 7 is a cylindrical body; Its inwall is provided with step-like structure, is with spring 17 on the valve rod 13, and spring 17 1 ends withstand on the spring seat 14 that is fixed on the valve rod 13; Spring 17 the other ends withstand on the step-like structure of eddy flow guide pin bushing 7 inwalls; Have the guiding gutter 71 of many S shapes on the outer wall of eddy flow guide pin bushing 7, guiding gutter 71 is evenly distributed on the outer wall of eddy flow guide pin bushing, leaves between eddy flow guide pin bushing 7 and the valve seat 5 to form vortex cavity 22 at interval.The stainless steel precision tube drawing is adopted in jet pipe import 8.Coil 21 can be through being wrapped on the coil carrier 15, and coil carrier 15 surrounds iron core 19, forms the iron core that is wound with coil, and coil carrier 15 is enclosed within the jet pipe import 8.Coil carrier 15 is outside equipped with magnet case 6, and magnet case 6 is fixed in the jet pipe import 8.Valve opening is adopting the cambered surface that matches with steel ball with the contacting point of steel ball 12.Eddy flow guide pin bushing 7 is connected fixing with jet pipe import 8 through the mode of welding.Magnet 18 is provided with a plurality of fuel holes 181.Jet pipe main body 11 oil outlet ends are provided with preceding seal ring 2, and preceding seal ring 2 is provided with the stamping forming front screen 1 of sheetmetal, and front screen 1 is stuck in the preceding seal ring 2 of locating slot internal fixation of jet pipe main body 11; Described jet pipe import 8 oil inlet ends are provided with back seal ring 9, and back seal ring 9 is provided with the stamping forming back-up ring 10 afterwards of sheetmetal, and back back-up ring 10 is stuck in seal ring 9 behind the locating slot internal fixation of jet pipe import 8.The filler opening of iron core 19 is processed into taper mouth.Valve seat 5 front ends are provided with spray orifice net 4, and spray orifice net 4 is drilled with the oblique aperture that is used for oil spout by the sheetmetal impact briquetting on the thin plate.
Gasoline gets into oil sprayer through the filter screen 20 of jet pipe import 8, and jet pipe import 8 adopts smart tube drawing directly to process, and iron core 19 is welded in the jet pipe import 8, and both are fixing by penetrating the weldering welding.The filler opening of iron core 19 is a taper mouth, makes open the mobile of gasoline that more help of inlet, can prevent that high pressure fuel from producing turbulent flow herein.Jet pipe import 8 outsides are wound with coil 21 and surround iron core 19, and the mode that coil 21 can also pass through coiling is on coil carrier 15, and coil carrier 15 is fixed on jet pipe import 8 outsides; Coil 21 outsides are provided with magnet case 6, and the end of magnet case 6 is connected with the end of jet pipe main body 11, are welded in the jet pipe import 8 in the mode of neck through laser bonding, can intensifier coil magnetic after the energising, reduce the number of turn of coil.Like Figure 12,13, the gap between iron core 19 and the magnet 18 is 0.05～0.1mm, and magnet 18 is processed by cylindrical body, and 6 fuel holes 181 of end face processing are convenient to the circulation of fuel oil, and the centre is processed as non through hole, is used to assemble valve rod.
Valve rod 13 front end steel balls 12 are spheroid, and steel ball 12 carries out grinding along valve rod 13 axial directions, with wearing into the plane around the spheroid after being welded on and accomplishing with valve rod welding; Steel ball 12 is arranged on the valve seat 5, and valve seat 5 is fixed in the jet pipe main body 11, has valve opening on the valve seat 5, is convenient to the circulation of fuel oil; Steel ball 12 is arranged in the valve opening, and valve seat 5 fronts are provided with spray orifice net 4, and spray orifice net 4 is by the sheetmetal impact briquetting; Be drilled with oblique aperture on the thin plate, when this design made fuel injection, atomize was good.All parts are tested after assembling, and are placed in the injection moulding die cavity 3 after qualified and encapsulate injection moulding.
Like Fig. 4, in the time of engine operation, fuel oil enters in the jet pipe import 8 from the filter screen 20 of oil pipe through jet pipe import 8; Then in iron core 19 enters into the fuel hole 181 of magnet 18; Enter in the guiding gutter 71 of water conservancy diversion sleeve pipe 7, fuel oil flows down along many guiding gutters 71, and the vortex cavity 22 in eddy flow guide pin bushing 7 bottoms forms eddy current; Enter into then valve seat 5 with the gap of steel ball 12 in; Seat orifice flow through valve seat 5 goes out, and gets into spray orifice net 4, forms the good mist of oil of atomize by the spray orifice on 4 on the spray orifice net.
The working principle of rotary flow type electromagnetism fuel injection device:
When electromagnetic fuel injector was not received electromagnetic signal, spring 17 withstood spring seat 14, and the valve opening on steel ball 12 and the valve seat 5 fits tightly, not oil spout this moment.When electrode slices 16 energized of electromagnetic fuel injector, the iron core 19 energising backs that are wound with coil produce magnetic field, because the effect of magnetic force; Magnet 18 is picked up by electromagnetic force, and magnet 18 drives valve rods 13, and the steel ball 12 of valve rod 13 front ends lifts off a seat 5; Opened the valve opening on the valve seat; High pressure oil enters in the vortex cavity through the eddy flow groove of eddy flow guide pin bushing 7, flows out through the steel ball 12 and the gap of valve seat 5, through the good mist of oil of spray orifice formation spray pattern of spray orifice net 4.
After the coil blackout, magnetic field disappears, and magnet 18 is pressed in steel ball 12 on the valve opening of valve seat 5 under the active force of spring 17 through valve rod 13 like this, stops oil spout this moment.
The present invention carries out testing property through spreading of spray, penetration distance, size of grain to oil sprayer.For being tests to have comparative; To the notification number CN201386607Y that mentions in conditional electronic gasoline ejector and the background technique; Open day be that the oil sprayer that the name on January 20th, 2010 is called " swirling electronic-controlled fuel injector of gasoline engine " is also done identical comparative trial, its correlation data such as table 1, table 2, table 3:
Spreading of spray under the different fuel pressures of table 1 (cylinder pressure 0.1MPa)
Penetration distance under the table 2 0.38MPa fuel pressure (cylinder pressure 0.1MPa)
Sauter mean diameter under table 3 different pressures (SMD)
Test spraying correlation data by last oil sprayer can know that oil sprayer of the present invention has good pulverability, and rotary flow type electromagnetism fuel injection utensil of the present invention has advantages such as spreading of spray is big, penetration distance is long, particle is little.Play very big effect for the flammability of improving motor, Economy and emission performance.
Claims (10)
1. a rotary flow type electromagnetism fuel injection device comprises jet pipe import (8), is provided with iron core (19), magnet (18) and valve rod (13) in the jet pipe import (8); Be wound with coil (21) on the iron core (19), coil (21) connection electrode sheet (16), valve rod (13) one ends are fixed on the magnet (18); Valve rod (13) the other end is fixed with steel ball (12), and steel ball (12) front end is provided with valve seat (5), and valve seat (5) is fixed on the jet pipe main body (11); Jet pipe main body (11) is tightly connected with jet pipe import (8), has the valve opening that cooperates with steel column (12) on the valve seat (5), it is characterized in that; Said valve rod (13) is enclosed within the eddy flow guide pin bushing (7); Eddy flow guide pin bushing (7) is a cylindrical body, and its inwall is provided with step-like structure, is with spring (17) on the valve rod (13); Spring (17) one ends withstand on the spring seat (14) that is fixed on the valve rod (13); Spring (17) the other end withstands on the step-like structure of eddy flow guide pin bushing (7) inwall, has the guiding gutter (71) of many S shapes on the outer wall of eddy flow guide pin bushing (7), leaves between eddy flow guide pin bushing (7) and the valve seat (5) to form vortex cavity (22) at interval.
2. a kind of rotary flow type electromagnetism fuel injection device according to claim 1 is characterized in that, the stainless steel precision tube drawing is adopted in described jet pipe import (8).
3. a kind of rotary flow type electromagnetism fuel injection device according to claim 1 is characterized in that described coil (21) is wrapped on the coil carrier (15), and coil carrier (15) is enclosed within the jet pipe import, and iron core (19) is surrounded.
4. a kind of rotary flow type electromagnetism fuel injection device according to claim 3 is characterized in that described coil carrier (15) is outside equipped with magnet case (6), and magnet case (6) is fixed in the jet pipe import (8).
5. a kind of rotary flow type electromagnetism fuel injection device according to claim 1 is characterized in that, described valve opening is adopting the cambered surface that matches with steel ball with the contacting point of steel ball (12).
6. a kind of rotary flow type electromagnetism fuel injection device according to claim 1 is characterized in that, described eddy flow guide pin bushing (7) is connected fixing with jet pipe import (8) through the mode of welding.
7. a kind of rotary flow type electromagnetism fuel injection device according to claim 1 is characterized in that described magnet (18) is provided with a plurality of fuel holes (181).
8. a kind of rotary flow type electromagnetism fuel injection device according to claim 1; It is characterized in that; Said jet pipe main body (11) oil outlet end is provided with preceding seal ring (2); Preceding seal ring (2) is provided with the stamping forming front screen of sheetmetal (1), and front screen (1) is stuck in the preceding seal ring (2) of locating slot internal fixation of jet pipe main body (11); Described jet pipe import (8) oil inlet end is provided with back seal ring (9), and back seal ring (9) is provided with the stamping forming back-up ring (10) afterwards of sheetmetal, and back back-up ring (10) is stuck in seal ring (9) behind the locating slot internal fixation of jet pipe import (8).
9. a kind of rotary flow type electromagnetism fuel injection device according to claim 1 is characterized in that the filler opening of described iron core (19) is processed into taper mouth.
10. a kind of rotary flow type electromagnetism fuel injection device according to claim 1 is characterized in that said valve seat (5) front end is provided with spray orifice net (4), and spray orifice net (4) is drilled with the oblique aperture that is used for oil spout by the sheetmetal impact briquetting on the thin plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110227331A CN102322377A (en) | 2011-08-09 | 2011-08-09 | A kind of rotary flow type electromagnetism fuel injection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110227331A CN102322377A (en) | 2011-08-09 | 2011-08-09 | A kind of rotary flow type electromagnetism fuel injection device |
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| CN102322377A true CN102322377A (en) | 2012-01-18 |
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| CN201110227331A Pending CN102322377A (en) | 2011-08-09 | 2011-08-09 | A kind of rotary flow type electromagnetism fuel injection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670853A (en) * | 2013-09-11 | 2014-03-26 | 浙江冯仕特电喷技术有限公司 | Electromagnetic oil sprayer |
| CN113941792A (en) * | 2021-09-28 | 2022-01-18 | 深圳市库卡自动化设备有限公司 | Full-automatic assembly welding production line system of oil sprayer |
| CN114382570A (en) * | 2022-01-19 | 2022-04-22 | 一汽解放汽车有限公司 | Atomizing structure and vehicle |
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| JPS593166A (en) * | 1982-06-28 | 1984-01-09 | Toyota Central Res & Dev Lab Inc | Intermittently injecting type swirl injection valve |
| US4971254A (en) * | 1989-11-28 | 1990-11-20 | Siemens-Bendix Automotive Electronics L.P. | Thin orifice swirl injector nozzle |
| US6311900B1 (en) * | 1997-11-03 | 2001-11-06 | SLOWIK GüNTER | Procedure and injection nozzle for injecting fuel, in particular into the combustion chamber of an internal combustion engine |
| DE102006000140A1 (en) * | 2005-03-29 | 2006-10-19 | Denso Corp., Kariya | Fuel injector for e.g. diesel engine, has attraction unit made from material having higher magnetic characteristic than connecting unit, and non-magnetic unit covering outer circumference of cavity over movable core and attraction unit |
| CN201386607Y (en) * | 2009-03-18 | 2010-01-20 | 临海弘征汽车电喷技术有限公司 | Gasoline engine spiral-flow electronic controlled injector |
| CN101949344A (en) * | 2010-09-10 | 2011-01-19 | 冯政杰 | Electromagnetic fuel injection valve |
| CN202209239U (en) * | 2011-08-09 | 2012-05-02 | 冯政杰 | Swirl electromagnetic fuel injector |
-
2011
- 2011-08-09 CN CN201110227331A patent/CN102322377A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS593166A (en) * | 1982-06-28 | 1984-01-09 | Toyota Central Res & Dev Lab Inc | Intermittently injecting type swirl injection valve |
| US4971254A (en) * | 1989-11-28 | 1990-11-20 | Siemens-Bendix Automotive Electronics L.P. | Thin orifice swirl injector nozzle |
| US6311900B1 (en) * | 1997-11-03 | 2001-11-06 | SLOWIK GüNTER | Procedure and injection nozzle for injecting fuel, in particular into the combustion chamber of an internal combustion engine |
| DE102006000140A1 (en) * | 2005-03-29 | 2006-10-19 | Denso Corp., Kariya | Fuel injector for e.g. diesel engine, has attraction unit made from material having higher magnetic characteristic than connecting unit, and non-magnetic unit covering outer circumference of cavity over movable core and attraction unit |
| CN201386607Y (en) * | 2009-03-18 | 2010-01-20 | 临海弘征汽车电喷技术有限公司 | Gasoline engine spiral-flow electronic controlled injector |
| CN101949344A (en) * | 2010-09-10 | 2011-01-19 | 冯政杰 | Electromagnetic fuel injection valve |
| CN202209239U (en) * | 2011-08-09 | 2012-05-02 | 冯政杰 | Swirl electromagnetic fuel injector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670853A (en) * | 2013-09-11 | 2014-03-26 | 浙江冯仕特电喷技术有限公司 | Electromagnetic oil sprayer |
| CN113941792A (en) * | 2021-09-28 | 2022-01-18 | 深圳市库卡自动化设备有限公司 | Full-automatic assembly welding production line system of oil sprayer |
| CN114382570A (en) * | 2022-01-19 | 2022-04-22 | 一汽解放汽车有限公司 | Atomizing structure and vehicle |
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Owner name: ZHEJIANG FENGSHITE EFI TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: FENG ZHENGJIE Effective date: 20120316 |
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Effective date of registration: 20120316 Address after: 321200, No. 23, hardware Avenue, Tong Qin industrial area, Jinhua, Zhejiang, Wuyi Applicant after: ZHEJIANG FENGSHITE ELECTRONIC FUEL INJECTION TECHNOLOGY CO., LTD. Address before: 321300, No. five, No. 6, West Tower, Chengxi Industrial Zone, Jinhua City, Zhejiang, Yongkang Applicant before: Feng Zhengjie |
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