CN2926555Y - Electromagnetic valve of electrically-controlled fuel injector for engine - Google Patents
Electromagnetic valve of electrically-controlled fuel injector for engine Download PDFInfo
- Publication number
- CN2926555Y CN2926555Y CN 200620043719 CN200620043719U CN2926555Y CN 2926555 Y CN2926555 Y CN 2926555Y CN 200620043719 CN200620043719 CN 200620043719 CN 200620043719 U CN200620043719 U CN 200620043719U CN 2926555 Y CN2926555 Y CN 2926555Y
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- CN
- China
- Prior art keywords
- armature
- solenoid valve
- valve
- engine electric
- fixed support
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- 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
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Abstract
The utility model relates to a magnetic valve for the engine electric control fuel injector, which is characterized in that: the magnetic valve is composed of a shell body, a valve body, installed in the shell body, and two connection poles, installed in the inlet end of the valve body. The valve body comprises a shell, fixing frame with a through hole in the center, a solid iron core, made up by a plurality of magnet material small bodies which are insulated with each other, a winding surrounded the iron core, a armature subassembly installed under the iron core, a back-spring around the armature subassembly, a compression spring installed between the lower of the armature subassembly and the fixing frame, a adjusting mat installed between the bottom inside the fuel injector and the fixing frame, and a ball valve installed between the bottom of the armature subassembly and the fuel outlet hole of the fuel injector. The magnetic valve has strong electromagnetic force, fewer loss of current vortex and good dynamic response capability, which can exactly control the injection timing of the high fuel as well as the duration time of the fuel injection.
Description
Technical field
The utility model relates to the solenoid valve of a kind of brute force, HF switch, particularly a kind of solenoid valve that is applied to the engine electric-controlled oil sprayer in the engine electric-controlled technical field.
Prior art
The solenoid valve of electric-controlled fuel injector is one of core component in the electrical control system for engine.Usually wish that solenoid valve has strong electromagnetic force so that make it have response capability fast.The iron core of the electromagnet of existing a kind of fuel injector magnetic system is a hollow, is used for placing pressure spring in the part of hollow unshakable in one's determination.When this solenoid valve was not switched on, the pressure spring precompression acted on the armature push rod, acted on the seal ball-valve by the armature push rod, compressed seal ball-valve, closed oil outlet; After the energising, electromagnet produces the electromagnetic force that overcomes the pressure spring precompression, and the armature push rod is moved upward vertically, discharges seal ball-valve, and oil outlet is opened.The electromagnetic valve structure of existing this hollow iron core, electromagnetic force is little, influences speed of response, and existing solenoid valve iron core is as one, and the eddy-current loss in unshakable in one's determination is bigger, and iron loss is big, influences the dynamic quality performance of whole oil sprayer.
Summary of the invention
In order to overcome the shortcoming that the solenoid valve electromagnetic force is little, eddy current loss is big, the utility model has designed a kind of engine electric-controlled oil sprayer special electromagnetic valve that bigger electromagnetic force and less eddy-current loss can be provided.
The technical measures that the utility model is taked are: be used for the solenoid valve of engine electric-controlled oil sprayer, be arranged on oil injector body top; Described solenoid valve comprises housing, is located at the valve body in the housing and two wiring terminals that are located at the valve body input end; Described valve body comprises: fixed support, an iron core, that shell, central authorities establish through hole are located at the ball valve that is positioned at oil outlet in the oil injector body around coil and on every side unshakable in one's determination; Be characterized in,
Described iron core is solid core, and it is made up of a plurality of magnetic material corpusculums insulated from each other;
Comprise that also one is located at the Returnning spring and of armature component, around armature component of below unshakable in one's determination at the pressure spring below the armature component and between the fixed support.
The above-mentioned solenoid valve that is used for engine electric-controlled oil sprayer, wherein, described armature component comprises the armature and the armature push rod that are located at below unshakable in one's determination, and described armature central authorities establish the hole, and this armature is between iron core and fixed support; The epimere of described armature push rod interts in armature and fixed support and the support guiding that is fixed, and wherein armature top thick stick can pump under the drive of armature vertically.
The above-mentioned solenoid valve that is used for engine electric-controlled oil sprayer, wherein, described Returnning spring be located at armature around, between armature top and fixed support.
The above-mentioned solenoid valve that is used for engine electric-controlled oil sprayer, wherein, the bottom of described armature push rod is provided with a bearing, and described pressure spring is located between below, support bracket fastened bottom and the armature push rod bottom support bracket.
The above-mentioned solenoid valve that is used for engine electric-controlled oil sprayer wherein, also comprises an adjustment pad that is located at the adjustment pressure spring pretightening force between oil injector body inner bottom part and the fixed support.
The above-mentioned solenoid valve that is used for engine electric-controlled oil sprayer wherein, also comprises a stroke adjustment pad that is located between shell and the fixed support.
The above-mentioned solenoid valve that is used for engine electric-controlled oil sprayer, wherein, described ball valve is between the oil outlet of armature component bottom and oil injector body.
The above-mentioned solenoid valve that is used for engine electric-controlled oil sprayer, wherein, also comprise a plurality of seal rings, described each seal ring be located at respectively and the connection part of miscellaneous part between, comprising: be located between the connection part of housing and oil injector body, be located between the connection part of housing and shell.
Because the solid core that the utility model adopts the spool of high speed powerful solenoid valve to be made up of a plurality of magnetic material corpusculums insulated from each other, this structure can make solenoid valve have powerful electromagnetic force and less eddy-current loss, have the good dynamic response ability, under the control of electronic control unit, can control high pressure fuel injection timing and injection duration accurately.
Description of drawings
Concrete structure of the present utility model is further provided by following embodiment of institute and accompanying drawing thereof.
Fig. 1 is the cut-away view along its symmetry plane of the utility model solenoid valve.
Fig. 2 is the sectional view of the utility model solenoid valve iron core.
Fig. 3 is the plan view of the utility model solenoid valve iron core.
Embodiment
See also Fig. 1 and Fig. 2.The utility model is used for the solenoid valve of engine electric-controlled oil sprayer, is located at the top of oil injector body 100, and the outlet end of this oil injector body is provided with oil outlet 101.Described solenoid valve comprises housing 1, is located at the valve body 2 in the housing and two wiring terminals 3 that are located at the valve body input end.Described valve body 2 comprises: solid core that the fixed support 22, that shell 21, central authorities establish through hole is made up of a plurality of magnetic material corpusculums 23 insulated from each other 24, one are located at below unshakable in one's determination around coil unshakable in one's determination 25, one armature component 26, one the Returnning spring around the armature component 27, one at the ball valve 29 of the pressure spring below the armature component and between the fixed support 28 and between the oil outlet of armature component bottom and oil injector body.Electromagnet core 24 of the present utility model is formed solid core 24 by a plurality of magnetic material corpusculums 23 insulated from each other, has cancelled the core construction of original hollow.Between oil injector body inner bottom part and fixed support, be provided with the adjustment pad 5 of adjusting the pressure spring pretightening force.Also comprise a stroke adjustment pad 7 that is located between shell and the fixed support.
The utility model is used for the armature component 26 described in the solenoid valve of engine electric-controlled oil sprayer and comprises an armature 261 and an armature push rod 262 that is located at below unshakable in one's determination.The central authorities of armature 261 establish the hole, and this armature is between iron core and fixed support, and the epimere of armature push rod 262 interts in armature and fixed support and the support guiding that is fixed, and wherein armature top thick stick can pump under the drive of armature vertically.Top at the armature push rod is partly located near armature, and a stroke cavity 6 is arranged, and the height of the trip cavity 6 is slightly larger than the height of armature lift rod stroke, is used to guarantee armature push rod 262 unrestricted motion in axial direction.Returnning spring be located at armature around, between armature top and fixed support.The bottom of described armature push rod is provided with a bearing 2621, and described pressure spring is located between below, support bracket fastened bottom and the armature push rod bottom support bracket.The precompression of pressure spring 28 acts on the armature push rod, and the armature push rod acts on the seal ball-valve, and wherein the precompression of pressure spring is adjusted by the adjustment pad 5 that is contained between fixed support 22 and the oil injector body 100.
Under the situation that solenoid valve is not switched on, being exerted pressure to closing direction by pressure spring 28 acts on the seal ball-valve 29, guarantees that oil outlet 101 closes; Under solenoid valve energising situation, solenoid valve produces the precompression that the electromagnetic force that makes progress vertically overcomes pressure spring 28, discharges seal ball-valve 29, and oil outlet 101 is opened.
For preventing to leak, the solenoid valve that the utility model is used for engine electric-controlled oil sprayer also comprises a plurality of seal rings 4, each seal ring be located at respectively and the connection part of miscellaneous part between, comprising: be located between the connection part of housing and oil injector body, be located between the connection part of housing and shell.
Working principle of the present utility model is:
This solenoid valve is under not energising situation, and electromagnetic coil 25 does not provide electromagnetic force, and the free end of pressure spring 28 acts on the armature push rod 262, acts on the seal ball-valve 29 by armature push rod 262, closes oil outlet 101.
This solenoid valve is under the situation of energising, electromagnetic coil 25 produces and overcomes initial tension of spring, drives armature push rod 262 by armature 261 and moves upward, and armature push rod 262 is directed in the aperture in the middle of fixed support 22, seal ball-valve 29 is released, and oil outlet 101 is opened.
Claims (8)
1, the solenoid valve that is used for engine electric-controlled oil sprayer is arranged on oil injector body top; Described solenoid valve comprises housing, is located at the valve body in the housing and two wiring terminals that are located at the valve body input end; Described valve body comprises: fixed support, an iron core, that shell, central authorities establish through hole are located at the ball valve that is positioned at oil outlet in the oil injector body around coil and on every side unshakable in one's determination; It is characterized in that,
Described iron core is solid core, and it is made up of a plurality of magnetic material corpusculums insulated from each other;
Comprise that also one is located at the Returnning spring and of armature component, around armature component of below unshakable in one's determination at the pressure spring below the armature component and between the fixed support.
2, the solenoid valve that is used for engine electric-controlled oil sprayer according to claim 1 is characterized in that,
Described armature component comprises the armature and the armature push rod that are located at below unshakable in one's determination, and described armature central authorities establish the hole, and this armature is between iron core and fixed support; The epimere of described armature push rod interts in armature and fixed support and the support guiding that is fixed, and wherein armature top thick stick can pump under the drive of armature vertically.
3, the solenoid valve that is used for engine electric-controlled oil sprayer according to claim 2 is characterized in that,
Described Returnning spring be located at armature around, between armature top and fixed support.
4, the solenoid valve that is used for engine electric-controlled oil sprayer according to claim 2 is characterized in that,
The bottom of described armature push rod is provided with a bearing, and described pressure spring is located between below, support bracket fastened bottom and the armature push rod bottom support bracket.
5, the solenoid valve that is used for engine electric-controlled oil sprayer according to claim 1 is characterized in that,
Also comprise an adjustment pad that is located at the adjustment pressure spring pretightening force between oil injector body inner bottom part and the fixed support.
6, the solenoid valve that is used for engine electric-controlled oil sprayer according to claim 1 is characterized in that,
Also comprise a stroke adjustment pad that is located between shell and the fixed support.
7, the solenoid valve that is used for engine electric-controlled oil sprayer according to claim 1 is characterized in that,
Described ball valve is between the oil outlet of armature component bottom and oil injector body.
8, the solenoid valve that is used for engine electric-controlled oil sprayer according to claim 1 is characterized in that,
Also comprise a plurality of seal rings, each seal ring be located at respectively and the connection part of miscellaneous part between, comprising: be located between the connection part of housing and oil injector body, be located between the connection part of housing and shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620043719 CN2926555Y (en) | 2006-07-07 | 2006-07-07 | Electromagnetic valve of electrically-controlled fuel injector for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620043719 CN2926555Y (en) | 2006-07-07 | 2006-07-07 | Electromagnetic valve of electrically-controlled fuel injector for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2926555Y true CN2926555Y (en) | 2007-07-25 |
Family
ID=38280798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620043719 Expired - Lifetime CN2926555Y (en) | 2006-07-07 | 2006-07-07 | Electromagnetic valve of electrically-controlled fuel injector for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2926555Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109060A (en) * | 2009-12-29 | 2011-06-29 | 罗伯特·博世有限公司 | Solenoid valve specially used for braking system of motor vehicle |
| WO2011150543A1 (en) * | 2010-06-03 | 2011-12-08 | 无锡开普动力有限公司 | Injection valve for electric control oil injector |
| CN105673287A (en) * | 2016-04-07 | 2016-06-15 | 宁波舜田良源油嘴油泵有限公司 | High-voltage common-rail electrically-controlled oil sprayer |
-
2006
- 2006-07-07 CN CN 200620043719 patent/CN2926555Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109060A (en) * | 2009-12-29 | 2011-06-29 | 罗伯特·博世有限公司 | Solenoid valve specially used for braking system of motor vehicle |
| WO2011150543A1 (en) * | 2010-06-03 | 2011-12-08 | 无锡开普动力有限公司 | Injection valve for electric control oil injector |
| CN105673287A (en) * | 2016-04-07 | 2016-06-15 | 宁波舜田良源油嘴油泵有限公司 | High-voltage common-rail electrically-controlled oil sprayer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070725 |
|
| EXPY | Termination of patent right or utility model |