CN203822514U - Novel oil sprayer - Google Patents
Novel oil sprayer Download PDFInfo
- Publication number
- CN203822514U CN203822514U CN201420161118.8U CN201420161118U CN203822514U CN 203822514 U CN203822514 U CN 203822514U CN 201420161118 U CN201420161118 U CN 201420161118U CN 203822514 U CN203822514 U CN 203822514U
- Authority
- CN
- China
- Prior art keywords
- needle
- valve
- valve body
- oil
- oil sprayer
- 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 - Lifetime
Links
- 239000000446 fuel Substances 0.000 claims description 30
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 23
- 240000005373 Panax quinquefolius Species 0.000 claims description 23
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 11
- 238000007789 sealing Methods 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 63
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 239000000295 fuel oil Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003116 impacting effect Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a novel oil sprayer. Theoil sprayer comprises a needle valve, a needle valve body, a fastening nut and an oil containing cavity, wherein the needle valve is arranged in the needle valve body; the oil containing cavity is arranged between theneedle valve and theneedle valve body; the needle valve body is provided with a supporting surface; the fastening nut is provided with a bulging part; an annular lower surface of the supporting surface of the needle valve body is attached to an annular upper surface of the bulging part of the fastening nut to form a matched sealing surface; a counterbore is formed in the inner side of the needle valve body and located in the top end of the matched surface of the needle valve and theneedle valve body. Theoil sprayer is easy to implement and capable of effectively reducing the radial friction force applied to a needle valve assembly of the oil sprayer and improving the movement stability of the needle valve.
Description
Technical field
The utility model relates to fuel injection system, relates in particular to a kind of new-type oil sprayer.
Background technique
Diesel engine high-pressure co-rail spraying technique is current raising diesel engine performance and the effective measures that reduce discharge.Diesel engine high-pressure co-rail system has that injection pressure flexibility is adjustable, injection timing, control flexibly and the feature such as fuel injection quantity free adjustment, can effectively reduce engine fuel consumption and discharge and improve power character.High pressure common rail electric control fuel injector is the core key part of high pressure co-rail system, and its structural parameter and performance directly have influence on the service behaviours such as the speed of response, injection rate, reliability of whole high pressure co-rail system.
Existing high pressure common rail electric control fuel injector is mainly comprised of needle-valve body, needle-valve, fastening nut, control plunger, control plunger bushing, orifice plate, armature, armature guide way, oil injector body etc.Needle-valve is arranged in needle-valve body; Fastening nut is fastened together needle-valve body, oil injector body, controls plunger, control plunger bushing, orifice plate, armature, armature guide way etc. and is installed in oil injector body.Orifice plate is provided with oil-feed metering-orifice and fuel-displaced metering-orifice, and the aperture of oil-feed metering-orifice is less than the aperture of fuel-displaced metering-orifice.
The groundwork process of existing high pressure common rail electric control fuel injector is:
High pressure fuel is divided into two-way after entering electric-controlled fuel injector by common rail pipe, and a road flows to the control chamber of controlling plunger place; Another road flows to the Sheng oil pocket at needle-valve place.When solenoid valve dead, armature is pressed on valve seat by armature spring.Control chamber and Sheng oil pocket are communicated with, and internal pressure is equal, and control chamber inner high voltage fuel oil produces a downward fuel oil hydraulic coupling to controlling plunger.In containing oil pocket, high pressure fuel produces a fuel oil hydraulic coupling making progress to needle-valve, and downward hydraulic coupling is greater than hydraulic coupling upwards.In addition, the downward impacting force of return spring is also born in needle-valve top, causes needle-valve to be pressed on above needle valve seat, not oil spout of electric-controlled fuel injector.
When ECU (Electrical Control Unit) encourages to solenoid valve, electromagnetic force drives armature to rise, the ball valve of orifice plate top is opened, because the aperture of the oil-feed metering-orifice of orifice plate is less than the aperture of fuel-displaced metering-orifice, pressure in control chamber declines rapidly, control chamber inner high voltage fuel oil reduces rapidly controlling the downward fuel oil hydraulic coupling of plunger, and the pressure reduction of generation causes needle-valve to start to move upward, fuel injection beginning.During end of injection, solenoid valve power-off, armature starts to take a seat under the effect of return spring, oil pump capacity bore closure, fuel oil is by oil-feed metering-orifice to oil-filled in control chamber, and control chamber internal pressure starts to rise, and high pressure re-establishes.The fuel oil hydraulic coupling producing in control chamber and needle-valve return spring elastic force sum are greater than while containing the fuel oil hydraulic coupling making progress that oil pocket produces, and control plunger and move downward together with starting with needle-valve, until needle-valve takes a seat, end of injection.
Can see, high pressure common rail electric control fuel injector is in work engineering, and needle-valve is controlled chamber and contains the acting in conjunction of a plurality of complex external forces such as the interior hydraulic coupling of oil pocket, spring force, couple gap frictional force; In addition, the parts such as needle-valve body, oil injector body are pressed on oil injector body by the screw thread power between fastening nut and oil injector body, and needle-valve body is also subject to the fastening nut impacting force that produces etc. that is threaded with oil injector body simultaneously.In general, high pressure common rail electric control fuel injector will be realized injection accurate, stable under high pressure and control, the stability of motions of needle-valve is most important, and under above-mentioned multiple External Force Acting, needle-valve body inner chamber can produce distortion, thereby the radial friction that strengthens needle-valve body and needle-valve, affects electric-controlled fuel injector performance.
Therefore, those skilled in the art is devoted to develop a kind of high pressure common rail electric control fuel injector, can effectively reduce the suffered radial frictional force of electric-controlled fuel injector pintle nozzle match-ing parts, improves the stability of motions of needle-valve.
Model utility content
Because the above-mentioned defect of prior art, technical problem to be solved in the utility model is to provide a kind of new-type oil sprayer, can effectively reduce the suffered radial frictional force of Performance of Fuel Injection Nozzle, improves the stability of motions of needle-valve.
For achieving the above object, first aspect of the present invention, provides a kind of oil sprayer, comprises needle-valve, needle-valve body, fastening nut and Sheng oil pocket; Described needle-valve and described needle-valve body form pintle nozzle match-ing parts, and described needle-valve is arranged in described needle-valve body, and described Sheng oil pocket is arranged between described needle-valve and described needle-valve body; Described needle-valve body has supporting surface, and described fastening nut has bump; The annular upper surface laminating of the annular lower surface of the supporting surface of described needle-valve body and the bump of fastening nut, forms matching trim; The inner side of described needle-valve body is provided with reaming, and described reaming is positioned at the top of the fitting surface of described needle-valve body and described needle-valve; The upper surface of described needle-valve body is provided with two positioning pin holes vertically vertically downward; The medial axis of described two relatively described needle-valve bodies of positioning pin hole is arranged symmetrically with.
Further, described counter bore diameter increases by 0.1～3mm than the diameter of needle-valve, and the described reaming degree of depth is vertically 0.5～8mm.
Further, be provided with the needle-valve of plane below, Sheng place, oil pocket bottom surface and the fitting surface between needle-valve body and be provided with radial clearance; Described radial clearance increases by 0.3～2mm than the diameter of described needle-valve.
Further, the plane at the end face place of described Sheng oil pocket is higher than the described matching trim of described needle-valve body and the formation of described fastening nut.
Further, the described matching trim that the plane at the end face place of described Sheng oil pocket forms higher than described needle-valve body and described fastening nut is twice needle-valve guiding diameter at least.
Wherein, described needle-valve guiding diameter and needle-valve body mesopore guiding equal diameters.
Further, at the described needle-valve above the plane of described Sheng oil pocket end face place and the fitting surface place between described needle-valve body, be provided with radial clearance.
Further, the width of radial clearance is 0.1～3mm, and the height of radial clearance is 0.5～8mm.
Wherein, the width direction of radial clearance is the direction perpendicular to needle-valve medial axis, and the short transverse of radial clearance is the direction that is parallel to needle-valve medial axis.
Aspect second of the present invention, a kind of high pressure common rail electric control fuel injector is provided, comprise the oil sprayer described in first aspect of the present invention.
Aspect the 3rd of the present invention, a kind of hydraulic injection device is also provided, comprise the oil sprayer described in first aspect of the present invention.
As can be seen here, the utlity model has following technique effect:
1, the present invention sets up reaming at needle-valve place, effectively guarantees that the top distortion of needle-valve body and needle-valve fitting surface can not cause pintle nozzle match-ing parts radial frictional force to increase, thereby can improve, sprays precision and the stability thereof of controlling.
2, needle-valve body and the needle-valve precision-fit section of containing oil pocket below of being positioned at of the present invention is provided with radial clearance, can avoid the radial frictional force of the Performance of Fuel Injection Nozzle that the radial deformation of needle-valve or needle-valve body introduces, precision and the stability of motions of the control of raising needle-valve.
3, the position of Sheng oil pocket of the present invention is higher than the matching trim of needle-valve body and fastening nut formation, can effectively reduce the mesopore amount of deformation of the needle-valve body that is positioned at matching trim top, and then reduce the suffered radial frictional force of Performance of Fuel Injection Nozzle, improve the stability of motions of needle-valve.
4, oil sprayer of the present invention is easy to realize, and is applicable to high pressure common rail electric control fuel injector and hydraulic injection device, has universality.
Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is described further, to understand fully the purpose of this utility model, feature and effect.
Accompanying drawing explanation
Fig. 1 is the structure diagram of the oil sprayer of a kind of preferred embodiment of the present utility model;
Fig. 2 is the partial enlarged drawing of the oil sprayer in Fig. 1;
Fig. 3 is the needle-valve body of another kind of preferred embodiment of the present invention and the plan view of needle-valve assemblying body;
Fig. 4 is the needle-valve body of another kind of preferred embodiment of the present invention and the partial sectional view of needle-valve assemblying body.
Embodiment
Shown in Fig. 1 and Fig. 2, a kind of oil sprayer, comprises needle-valve 1, needle-valve body 2, fastening nut 3 and contains oil pocket 4 etc.Needle-valve 1, needle-valve body 2 form pintle nozzle match-ing parts, needle-valve 1 is arranged in needle-valve body 2 by precision-fit, needle-valve body 2 has supporting surface 201, fastening nut 3 has bump 301, the annular upper surface laminating of the annular lower surface of the supporting surface 201 of needle-valve body 2 and the bump of fastening nut 3, forms matching trim.Containing oil pocket 4 is arranged between needle-valve 1 and needle-valve body 2.The plane at the sealing surface place that the bump of the supporting surface of needle-valve body 2 201 and fastening nut 3 301 is formed is set as L1, and the end face place plane of containing oil pocket 4 is set as to L2.
The inner side of needle-valve body 2 is provided with reaming 22, and reaming is positioned at the top of the fitting surface of needle-valve body 2 and needle-valve 1.The design of width (diameter) radially of reaming 22 and the degree of depth is vertically not less than the radial deformation of needle-valve body 2 and needle-valve 1.Specifically, reaming 22 diameters increase by 0.1～3mm than the diameter of needle-valve 1.Reaming 22 degree of depth is vertically 0.5～8mm.Thus, by needle-valve body 2 and the upper end of the fitting surface of needle-valve 1, increase the setting of one section of reaming 22, can effectively guarantee that needle-valve body 2 and the top distortion of the fitting surface of needle-valve 1 can not cause pintle nozzle match-ing parts radial frictional force to increase.
Alternatively, in the oil sprayer of the present embodiment, in the situation of the plane L1 at the sealing surface place that the plane L2 that is also arranged on the end face place of containing oil pocket 4 does not form higher than needle-valve body 2 and fastening nut 3, make to contain oil pocket 4 and approach the sealing surface that needle-valve body 2 and fastening nut 3 form as far as possible.The plane L1 at the sealing surface place that preferably, the plane L2 at the end face place of Sheng oil pocket 4 can form with needle-valve body 2 and fastening nut 3 is coplanar.
Inventor is in the installation for oil sprayer fixedly time, the plane L1 that finds sealing surface place is subject to active force upwards, this active force make needle-valve body mesopore guide section at plane L1 the trend with the oriented interior contraction in upper part, this deformation tendency can cause the gap between needle-valve body mesopore and needle-valve to have the trend of dwindling, thereby cause pintle nozzle match-ing parts sliding not good (motion retardance), cause spraying control characteristic unstable.The impact bringing in order to reduce this distortion, inventor further proposes, and the plane at the end face place of Sheng oil pocket is higher than the matching trim of needle-valve body and fastening nut formation.Preferably, contain at least twice needle-valve guiding diameter of matching trim that the plane at the end face place of oil pocket forms higher than needle-valve body and fastening nut; Make needle-valve body guide section away from stress area, mesopore amount of deformation reduces, thereby the impact of sliding is also reduced.
Wherein, needle-valve guiding diameter and needle-valve body mesopore guiding equal diameters.
Further, at the needle-valve of the top face at Sheng oil pocket and the fitting surface place between needle-valve body, be provided with radial clearance.The width of radial clearance is 0.1～3mm, and the height of radial clearance is 0.5～8mm.Below the bottom surface that is positioned at Sheng oil pocket, the needle-valve of (near spray orifice one end) and the fitting surface place between needle-valve body, be provided with radial clearance.Radial clearance (width) is 0.3～2mm.
Wherein, the width direction of radial clearance is the direction perpendicular to needle-valve medial axis, and the short transverse of radial clearance is the direction that is parallel to needle-valve medial axis.
Compared with prior art, the needle-valve body and the needle-valve precision-fit section that are positioned at Sheng oil pocket top face and/or below, bottom surface are provided with radial clearance, the radial frictional force that can avoid the Performance of Fuel Injection Nozzle that the radial deformation of needle-valve or needle-valve body introduces, improves precision and the stability of motions of the control of needle-valve.
Further, in conjunction with Fig. 2-Fig. 4, in the oil sprayer providing in the present embodiment, on needle-valve body 2, be provided with two symmetrical positioning pin holes 21 and two symmetrical oil-feed oil ducts 23.The upper surface that positioning pin hole 21 is located at needle-valve body 2 vertically downward vertically.Referring to Fig. 2, the one end that is positioned at the oil-feed oil duct 23 of needle-valve body 2 is connected with Sheng oil pocket 10, and the other end forms two oil-feed oilholes 31 at the upper surface of needle-valve body 2.Different from asymmetric arrangement of the prior art, the central axis of two positioning pin hole 21 relative needle-valve bodies 2 is arranged symmetrically with, two oil-feed oil ducts 23 also relatively the central axis of needle-valve body 2 be arranged symmetrically with, two positioning pin holes 21 are evenly arranged with the central axis of two oil-feed oilhole 31 relative needle-valve bodies.
The layout symmetrically and evenly of two positioning pin holes 21 and two the relative needle-valve body of oil-feed oilhole 31 2 medial axis, can effectively improve the symmetry properties of needle-valve body 2 structures, the precision-fit section that makes needle-valve body 2 and needle-valve 1 assymmetrical deformation under the screw thread impacting force of fastening nut 3 and other External Force Actings reduces, and then guarantee that needle-valve 1 and the radial frictional force of needle-valve body 2 reduce, and improve the precision and stability of Performance of Fuel Injection Nozzle.
This shows, oil sprayer provided by the invention, by the position of containing oil pocket is set, guarantees that needle-valve body 2 and needle-valve 1 precision-fit section are not affected by external force, the needle-valve body 2 inner chamber distortion of avoiding external force to bring.By the reaming 22 of the upper end of needle-valve body 2 and needle-valve 1 fitting surface is set, guarantee that needle-valve body 2 and the top distortion of the fitting surface of needle-valve 1 can not cause pintle nozzle match-ing parts radial frictional force to increase; And then realization effectively reduces the suffered radial frictional force of Performance of Fuel Injection Nozzle, the precision and stability of raising needle valve movement; Simple in structure, be easy to realize, there is good using value.
Equally, the oil sprayer of the present embodiment is applicable to electric-controlled fuel injector and hydraulic injection device, has universality.
Preferably, a kind of high pressure common rail electric control fuel injector with above-mentioned oil sprayer, also comprise parts such as controlling plunger, control plunger bushing, orifice plate, armature, armature guide way, oil injector body, between needle-valve 1 and needle-valve body 2, form and contain oil pocket 4, control plunger, control formation control chamber between plunger bushing and orifice plate, in oil injector body, be provided with main oil gallery.Control plunger and be arranged in control plunger bushing, its outer surface forms fitting surface with the surface of controlling the interior bone of plunger bushing.Armature is arranged in armature guiding, and the internal surface of the interior bone of its outer surface and armature guide way also forms fitting surface.Orifice plate is provided with oil-feed metering-orifice and fuel-displaced metering-orifice, and the aperture of oil-feed metering-orifice is less than the aperture of fuel-displaced metering-orifice.Fastening nut 3 is fastened together the assembly integral body such as needle-valve body 2, oil injector body, controls plunger, control plunger bushing, orifice plate, armature, armature guide way etc. and is installed in oil injector body.
Can find out, the high pressure common rail electric control fuel injector that the present embodiment provides, guarantees that the top distortion of needle-valve body and needle-valve fitting surface can not cause pintle nozzle match-ing parts radial frictional force to increase, thereby can improve, sprays precision and the stability thereof of controlling.In addition, the needle-valve body and the needle-valve precision-fit section that are positioned at Sheng oil pocket below of the present embodiment are provided with radial clearance, the radial frictional force that can avoid the Performance of Fuel Injection Nozzle that the radial deformation of needle-valve or needle-valve body introduces, improves precision and the stability of motions of the control of needle-valve.In addition, the position of the Sheng oil pocket of the present embodiment is higher than the matching trim of needle-valve body and fastening nut formation, can effectively reduce the mesopore amount of deformation of the needle-valve body that is positioned at matching trim top, and then reduce the suffered radial frictional force of Performance of Fuel Injection Nozzle, improve the stability of motions of needle-valve.Simple in structure, be easy to realize, there is good using value.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (9)
1. a new-type oil sprayer, is characterized in that, comprises needle-valve, needle-valve body, fastening nut and Sheng oil pocket; Described needle-valve is arranged in described needle-valve body, and described Sheng oil pocket is arranged between described needle-valve and described needle-valve body; Described needle-valve body has supporting surface, and described fastening nut has bump; The annular upper surface laminating of the annular lower surface of the supporting surface of described needle-valve body and the bump of fastening nut, forms matching trim; The inner side of described needle-valve body is provided with reaming, and described reaming is positioned at the top of the fitting surface of described needle-valve body and described needle-valve; The upper surface of described needle-valve body is provided with two positioning pin holes vertically vertically downward; The medial axis of described two relatively described needle-valve bodies of positioning pin hole is arranged symmetrically with.
2. oil sprayer as claimed in claim 1, is characterized in that, described counter bore diameter increases by 0.1～3mm than the diameter of needle-valve, and the described reaming degree of depth is vertically 0.5～8mm.
3. oil sprayer as claimed in claim 1, is characterized in that, is provided with the needle-valve of plane below, Sheng oil pocket end face place and the fitting surface between needle-valve body and is provided with radial clearance; Described radial clearance increases by 0.1～3mm than the diameter of described needle-valve.
4. oil sprayer as claimed in claim 1, is characterized in that, the plane at the end face place of described Sheng oil pocket is higher than the described matching trim of described needle-valve body and the formation of described fastening nut.
5. oil sprayer as claimed in claim 4, is characterized in that, the described matching trim that the plane at the end face place of described Sheng oil pocket forms higher than described needle-valve body and described fastening nut is twice needle-valve guiding diameter at least.
6. oil sprayer as claimed in claim 1, is characterized in that, the described needle-valve below the bottom surface at described Sheng oil pocket and the fitting surface place between described needle-valve body, be provided with radial clearance.
7. oil sprayer as claimed in claim 6, is characterized in that, described radial clearance is 0.3～2mm.
8. a high pressure common rail electric control fuel injector, is characterized in that, comprises the oil sprayer as described in claim 1～7 arbitrary.
9. a hydraulic injection device, is characterized in that, comprises the oil sprayer as described in claim 1～7 arbitrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420161118.8U CN203822514U (en) | 2013-10-24 | 2014-04-03 | Novel oil sprayer |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511636.8 | 2013-10-24 | ||
| CN201310511636 | 2013-10-24 | ||
| CN201420161118.8U CN203822514U (en) | 2013-10-24 | 2014-04-03 | Novel oil sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822514U true CN203822514U (en) | 2014-09-10 |
Family
ID=51330806
Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410133277.1A Pending CN103953482A (en) | 2013-10-24 | 2014-04-03 | Diesel injector for diesel engine fuel system |
| CN201420161118.8U Expired - Lifetime CN203822514U (en) | 2013-10-24 | 2014-04-03 | Novel oil sprayer |
| CN201410133457.XA Active CN103953484B (en) | 2013-10-24 | 2014-04-03 | Fuel injector for diesel engine |
| CN201420160499.8U Expired - Lifetime CN203867753U (en) | 2013-10-24 | 2014-04-03 | Oil sprayer |
| CN201420161088.0U Expired - Lifetime CN203822513U (en) | 2013-10-24 | 2014-04-03 | Improved fuel injector |
| CN201410133366.6A Pending CN103953483A (en) | 2013-10-24 | 2014-04-03 | Diesel injector |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410133277.1A Pending CN103953482A (en) | 2013-10-24 | 2014-04-03 | Diesel injector for diesel engine fuel system |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410133457.XA Active CN103953484B (en) | 2013-10-24 | 2014-04-03 | Fuel injector for diesel engine |
| CN201420160499.8U Expired - Lifetime CN203867753U (en) | 2013-10-24 | 2014-04-03 | Oil sprayer |
| CN201420161088.0U Expired - Lifetime CN203822513U (en) | 2013-10-24 | 2014-04-03 | Improved fuel injector |
| CN201410133366.6A Pending CN103953483A (en) | 2013-10-24 | 2014-04-03 | Diesel injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (6) | CN103953482A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404192A (en) * | 2019-01-08 | 2019-03-01 | 北油电控燃油喷射系统(天津)有限公司 | A kind of electronic fuel injection and the fuel injector including it |
| CN114165380B (en) * | 2021-12-09 | 2024-02-06 | 重庆红江机械有限责任公司 | Low-speed electromechanical control oil sprayer and assembly method thereof |
| CN114165373A (en) * | 2021-12-17 | 2022-03-11 | 中国船舶重工集团公司第七一一研究所 | Fuel injector and common rail system |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102659B (en) * | 1985-04-01 | 1986-11-12 | 大连工学院 | Multi-hole oil nozzle |
| DE20320869U1 (en) * | 2003-08-11 | 2005-05-19 | Siemens Ag | Fuel injection valve has clamp nut opening internal diameter corresponding essentially to external diameter of second cylindrical section of valve body with peripheral groove in transition from second cylindrical section to contact surface |
| JP4066959B2 (en) * | 2004-01-27 | 2008-03-26 | 株式会社デンソー | Fuel injection device |
| CN1616814A (en) * | 2004-11-30 | 2005-05-18 | 大连理工大学 | Guided table injector |
| CN2854112Y (en) * | 2005-10-21 | 2007-01-03 | 侯德洋 | Micro-displacement compound injector for electronically controlled direct-injection gasoline engine |
| JP4364864B2 (en) * | 2005-11-18 | 2009-11-18 | 株式会社デンソー | Variable injection hole injector |
| CN100451324C (en) * | 2006-04-03 | 2009-01-14 | 柳州华威电控技术有限公司 | Piezoelectric ceramic electric control diesel oil injector |
| CN101187352A (en) * | 2006-11-16 | 2008-05-28 | 史春盛 | Fuel injector assembly low speed oil-controlling device |
| DE102007002759A1 (en) * | 2007-01-18 | 2008-07-24 | Robert Bosch Gmbh | Fuel injector for injecting fuel into combustion chamber of internal combustion engine, has intermediate plate with step drill arranged between injector and nozzle bodies, and control and closing spaces, which are formed in step drill |
| JP2009275597A (en) * | 2008-05-14 | 2009-11-26 | Yanmar Co Ltd | Common rail injector |
| EP2187042A1 (en) * | 2008-11-14 | 2010-05-19 | Robert Bosch GmbH | An injector nozzle and a nozzle retaining nut with a reduced effective head friction diameter |
| CN101806266B (en) * | 2010-03-04 | 2012-07-11 | 哈尔滨工程大学 | Electronically controlled unit pump and electronically controlled fuel injector dual-valve fuel injection device |
| KR101148683B1 (en) * | 2010-06-07 | 2012-05-21 | 현대중공업 주식회사 | Dual fuel injector valve by hybrid nozzle with dual fuel injection valve for diesel and gas engine |
| CN101963119B (en) * | 2010-11-08 | 2012-04-25 | 郑国璋 | Piezoelectric high-pressure common rail electronic control injector |
| CN102168637A (en) * | 2011-05-25 | 2011-08-31 | 中国兵器工业集团第七○研究所 | Injector nozzle matching parts for diesel engine |
| CN102322378B (en) * | 2011-07-30 | 2013-03-27 | 郑国璋 | Low-viscosity fuel injector of diesel engine |
-
2014
- 2014-04-03 CN CN201410133277.1A patent/CN103953482A/en active Pending
- 2014-04-03 CN CN201420161118.8U patent/CN203822514U/en not_active Expired - Lifetime
- 2014-04-03 CN CN201410133457.XA patent/CN103953484B/en active Active
- 2014-04-03 CN CN201420160499.8U patent/CN203867753U/en not_active Expired - Lifetime
- 2014-04-03 CN CN201420161088.0U patent/CN203822513U/en not_active Expired - Lifetime
- 2014-04-03 CN CN201410133366.6A patent/CN103953483A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN103953484A (en) | 2014-07-30 |
| CN203822513U (en) | 2014-09-10 |
| CN103953482A (en) | 2014-07-30 |
| CN103953484B (en) | 2017-11-17 |
| CN203867753U (en) | 2014-10-08 |
| CN103953483A (en) | 2014-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104018969B (en) | Piezoelectricity controls pressure accumulation type voltage regulation fuel injector | |
| CN104314725A (en) | Middle hole pressure storage static leakage-free oil sprayer | |
| CN104018964B (en) | Pressure accumulator current limiting piezoelectric control injector | |
| CN104018965B (en) | Electromagnetic Control pressure accumulation constant-voltage type oil sprayer | |
| CN204200442U (en) | A kind of mesopore pressure accumulation is without static leakage oil sprayer | |
| CN104018966A (en) | Pressure accumulation flow-limiting type electromagnetic control oil sprayer | |
| CN102213166B (en) | High-pressure common-rail electronic control oil injector | |
| CN203822514U (en) | Novel oil sprayer | |
| CN102213165B (en) | High pressure common rail electronic control fuel injector | |
| CN101798977B (en) | Piezoelectric and electromagnetic combined double valve device | |
| CN105673282B (en) | Pressure balance valve type common-rail injector | |
| CN103644057A (en) | Fuel injector capable of injecting fuel to engine quantitatively at fixed time in controllable manner | |
| CN109372669A (en) | A kind of high pressure common rail injector | |
| CN203175733U (en) | Control jet flat valve structure of electronic control fuel injector | |
| CN203892092U (en) | Pressure accumulating and flow limiting electromagnetic control oil atomizer | |
| CN101397963A (en) | High voltage common rail electronic control injector | |
| CN105351115B (en) | Leak-free piezoelectric control gas injection device | |
| CN106351775B (en) | A kind of control chamber middle high-pressure electric control fuel injector | |
| CN104358644A (en) | High-speed electromagnetic valve for oil sprayer | |
| CN210152812U (en) | High-pressure common rail oil sprayer | |
| CN203925840U (en) | Electromagnetic Control pressure accumulation constant-voltage type oil sprayer | |
| CN203285598U (en) | Proportional flow valve for common rail pump | |
| CN105673287A (en) | High-voltage common-rail electrically-controlled oil sprayer | |
| CN206352544U (en) | A kind of two-way oil-feed resonance orifice-plate type electric-controlled fuel injector with ditch | |
| CN109595108B (en) | Compact high-pressure fuel injection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |
|
| CX01 | Expiry of patent term |