CN101571206A - Dual-coil electromagnetic valve - Google Patents
Dual-coil electromagnetic valve Download PDFInfo
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- CN101571206A CN101571206A CNA2009100722774A CN200910072277A CN101571206A CN 101571206 A CN101571206 A CN 101571206A CN A2009100722774 A CNA2009100722774 A CN A2009100722774A CN 200910072277 A CN200910072277 A CN 200910072277A CN 101571206 A CN101571206 A CN 101571206A
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- iron core
- coil
- returnning spring
- valve
- electromagnetic valve
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Abstract
The invention provides a dual-coil electromagnetic valve, which comprises a valve body, an iron core which is arranged in the valve body, and induction coils which are wound on a coil skeleton, wherein, the induction coils comprise an upper induction coil and a lower induction coil; a public iron core is arranged in the induction coils; a return spring mounting hole is arranged on the public iron core; a return spring is arranged in the return spring mounting hole; and an armature is arranged on the return spring. The invention provides the high-speed dual-coil electromagnetic valve, which can provide flexible fuel injection rule and jet pressure control, further optimize the fuel injection control of a diesel engine, better improve the economy of the diesel engine and lower the harmful discharge of the diesel engine.
Description
(1) technical field
What the present invention relates to is a kind of solenoid valve, particularly a kind of high speed dual-coil electromagnetic valve that is applicable to diesel electric-controlled fuel injection system.
(2) background technique
Electric control fuel oil jet system is the main developing direction of modern diesel engine fuel injection system, utilizes high-speed electromagnetic valve can realize accurate control to Fuel Injection Quantity for Diesel and fuel injection characteristic, thereby improves the Economy of diesel engine and reduce noxious emission.
Traditional electric control fuel oil jet system is single electromagnetic valve, though this control mode has realized the optimization control to fuel injection quantity and fuel injection characteristic to a certain extent, but in the pressure accumulation type fuel injection system, especially in pump port fuel injection system, because of it can only implement control action to a control valve, can't realize control neatly, so be difficult to satisfy diesel engine requirement to fuel injection characteristic under different operating modes to fuel injection characteristic and injection pressure.
(3) summary of the invention
The object of the present invention is to provide and a kind ofly can control fuel injection rule and jet pressure flexibly, further optimize diesel engine fuel jetting control, improve the Economy of diesel engine better and reduce the dual-coil electromagnetic valve of the noxious emission of diesel engine.
The object of the present invention is achieved like this:
It comprises valve body, be installed in iron core in the valve body and the inductor coil on the coil rack, described inductor coil comprises two up and down, in two inductor coils, public iron core is arranged, have the Returnning spring mounting hole on the public iron core, Returnning spring is installed in the Returnning spring mounting hole, and armature is installed on the Returnning spring.
The present invention can also comprise some features like this:
1, described valve body is a cylindrical shape, described iron core is the cylindrical shape that there is protruding circular ring at the middle part, described inductor coil is a ring, two inductor coils are installed in the both sides of the protruding circular ring at iron core middle part, Returnning spring mounting hole on the described public iron core is a through hole, a Returnning spring is arranged in the through hole, and respectively there is an armature at the two ends of Returnning spring.
2, public iron core radially has one and connects gap.
3, described valve body is the middle square tube shape that has dividing plate, described iron core and public iron core formation " E " the shape assembling iron core that is structure as a whole, two " E " shape assembling iron cores lay respectively at the both sides of dividing plate, described inductor coil is the sunk area of square placing " E " shape assembling iron core, Returnning spring mounting hole on the described public iron core is the blind hole on the raised zones at " E " shape assembling iron core middle part, two Returnning springs are arranged at respectively in two blind holes on " E " shape assembling iron core, and there is an armature end of each Returnning spring.
In order to overcome the existing defective of single electromagnetic valve, the present invention proposes a kind of high speed dual-coil electromagnetic valve, the control of fuel injection rule flexibly and jet pressure is provided, further optimizes diesel engine fuel jetting control, improve the Economy of diesel engine and the noxious emission of reduction diesel engine better.
The guiding theory of technological scheme of the present invention is: utilize the double-deck up and down inductor coil of high speed dual-coil electromagnetic valve, with two armature up and down, constitute high speed overflow control valve and high speed nozzle control valve respectively, realize the earial drainage of fuel oil respectively and spray control.
Relief valve is a normally open valve, and during not oil spout, fuel oil flows back to fuel tank through the relief valve of often opening from the draining passage; During oil spout, the relief valve energising is closed, and fuel oil is set up injection pressure rapidly in the fuel flow path of injection system, and when the relief valve outage was opened, high pressure fuel released from the draining passage through relief valve, and fuel pressure descends rapidly.
Nozzle control valve is a normally close valve, opens by controlling its energising, and power-failure close can be realized the control to fuel injection needle, thereby realizes fuel-injected is controlled.
When nozzle control valve was closed, fuel pressure was added in the oil-fuel injector needle-valve top, guaranteed the closure of oil-fuel injector needle-valve jointly with the needle-valve return spring.The unlatching if nozzle control valve is switched on always, then when the relief valve energising was closed, the opening and closing of oil-fuel injector needle-valve only determined that by the pressure that the needle-valve return spring sets the control mode of this control mode and single solenoid valve is identical.
If relief valve is closed before the nozzle control valve energising is opened, then in system, will put aside higher fuel pressure, just can neatly control fuel injection by the unlatching and the closure of control nozzle control valve this moment, and this control mode is the dual-coil electromagnetic valve control mode.Because the savings of fuel pressure, this moment, the more single electromagnetic valve mode of cracking pressure of oil-fuel injector needle-valve was higher, so the opening speed of needle-valve is faster, and injection pressure is also higher, and injection rate is faster, and the oil atomizing quality is also better.
When end of injection, single electromagnetic valve controlling system makes the rapid earial drainage step-down of high pressure fuel by opening relief valve, utilizes the acting in conjunction of fuel pressure and oil-fuel injector needle-valve return spring that needle-valve is dropped back into one's seat simultaneously.In the dual-coil electromagnetic valve control system, can be before relief valve be opened, elder generation's shut-off nozzle control valve, because this moment, fuel oil still maintained in the higher injection pressure scope, therefore under the acting in conjunction of fuel pressure and oil-fuel injector needle-valve return spring, can produce higher needle-valve closing pressure, accelerate the closing velocity of needle-valve, rapidly oil-break.
High speed dual-coil electromagnetic valve of the present invention can be used for the automatically controlled pressure accumulation type fuel injection system and the pump port fuel injection system of diesel engine.
The invention has the beneficial effects as follows: the high speed dual-coil electromagnetic valve of being invented, can realize control respectively simultaneously to fuel-oil over-flow valve and two control valves of nozzle control valve, control the flexible control that reaches the diesel engine fuel jetting rate by cooperation to two control valves, can realize boot-shaped, square and different fuel injection characteristics such as multi-injection, can satisfy diesel engine in different operating modes, to the requirement of fuel injection characteristic, improve engine fuel economy under the different loads, reduce noxious emission.
(4) description of drawings
Fig. 1 is the structural representation of first and second kind mode of execution of the present invention;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is the structural representation of the third mode of execution of the present invention;
Fig. 4 is the structural representation of the 4th kind of mode of execution of the present invention;
Fig. 5 is the structural representation of the 5th kind of mode of execution of the present invention;
Fig. 6 is Fig. 5 sectional view.
(5) embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1 and Fig. 2, the composition of first kind of mode of execution of the present invention comprises valve body 1, be installed in iron core 2 in the valve body and the inductor coil 3 on the coil rack 4, described inductor coil comprises two up and down, public iron core 10 is arranged in two inductor coils, have the Returnning spring mounting hole on the public iron core, Returnning spring 6 is installed in the Returnning spring mounting hole, and armature 5 is installed on the Returnning spring.Valve body is a cylindrical shape, iron core is the cylindrical shape that there is protruding circular ring at the middle part, inductor coil is a ring, two inductor coils are installed in the both sides of the protruding circular ring at iron core middle part, Returnning spring mounting hole on the public iron core is a through hole, a Returnning spring is arranged in the through hole, and respectively there is an armature at the two ends of Returnning spring.Be assembled together to iron core 2 and valve body 1 and 10 interference of public iron core.Inductor coil 3 is held and is integrated with it by coil rack 4, embed in the iron core 2, between itself and iron core 2 and the public iron core 10 with the embedding of oil resistant refractory seal glue.The solenoid valve both sides are solenoid armature, and constituting both sides with electromagnet portion is the high speed dual-coil electromagnetic valve of inhalation type.
In conjunction with Fig. 1 and Fig. 2, second kind of mode of execution of the present invention is on the basis of first kind of mode of execution, radially the opening and connect gap of public iron core 10, generates heat because of eddy current loss when the work to reduce the high speed dual-coil electromagnetic valve, reduce energy consumption, improve the conversion efficiency of energy.
In conjunction with Fig. 3, the third mode of execution of the present invention is on the basis of first kind of mode of execution, and solenoid valve one side is that clapping type armature opposite side is a solenoid armature, and constituting a side clapping type opposite side with electromagnet portion is inhalation type high speed dual-coil electromagnetic valve.Spool 9 on armature 5, constitutes the moving link of an integral body with armature 5 by stop ring card 7, and applies pressure to opening direction so that armature resets by the Returnning spring 6 of device in iron core 2, and wherein 8 is spring washer.
In conjunction with Fig. 4, the 4th kind of mode of execution of the present invention is on the basis of the third mode of execution, and the solenoid valve both sides are clapping type armature, and constituting both sides with electromagnet portion is the high speed dual-coil electromagnetic valve of clapping type.
In conjunction with Fig. 5 and Fig. 6, the 5th kind of mode of execution of the present invention is first, three or four kind of mode of execution improvement, its difference is that described valve body is the middle square tube shape that has dividing plate, described iron core and public iron core formation " E " the shape assembling iron core that is structure as a whole, two " E " shape assembling iron cores lay respectively at the both sides of dividing plate, described inductor coil is the sunk area of square placing " E " shape assembling iron core, Returnning spring mounting hole on the described public iron core is the blind hole on the raised zones at " E " shape assembling iron core middle part, two Returnning springs are arranged at respectively in two blind holes on " E " shape assembling iron core, and there is an armature end of each Returnning spring.
In the high-speed electromagnetic valve of the present invention, the armature form that is adopted is not imposed any restrictions.
The earial drainage of solenoid valve upside overflow control valve control fuel oil during work, the injection of downside nozzle control valve control fuel oil.
When realizing the rectangle fuel injection rate, relief valve is closed before the nozzle control valve energising is opened, then in system, will put aside higher fuel pressure, this moment, the more single electromagnetic valve mode of cracking pressure of oil-fuel injector needle-valve was higher, therefore the opening speed of needle-valve is faster, injection pressure is also higher, and injection rate is faster, and the oil atomizing quality is also better.When end of injection, before relief valve is opened, elder generation's shut-off nozzle control valve, because this moment, fuel oil still maintained in the higher injection pressure scope, therefore under the acting in conjunction of fuel pressure and oil-fuel injector needle-valve return spring, can produce higher needle-valve closing pressure, accelerate the closing velocity of needle-valve, rapidly oil-break.Because the unlatching closing speed of oil-fuel injector needle-valve and the raising of injection rate in high speed dual-coil electromagnetic valve control system, can be easy to realize the rectangle fuel injection rate.
When realizing multi-injection, the time chien shih fuel pressure that the closure of being regulated relief valve by electric control system controls and nozzle control valve are opened is put aside suitable scope, controls then that nozzle control valve is repeatedly opened and closed, reaches the purpose of realization fuel oil multi-injection.
Equally, the cooperation control by relief valve and nozzle control valve also can realize the boot-shaped fuel injection rate at an easy rate.
Claims (4)
1, a kind of dual-coil electromagnetic valve, it comprises valve body, be installed in iron core in the valve body and the inductor coil on the coil rack, it is characterized in that: described inductor coil comprises two up and down, in two inductor coils, public iron core is arranged, have the Returnning spring mounting hole on the public iron core, Returnning spring is installed in the Returnning spring mounting hole, and armature is installed on the Returnning spring.
2, dual-coil electromagnetic valve according to claim 1, it is characterized in that: described valve body is a cylindrical shape, described iron core is the cylindrical shape that there is protruding circular ring at the middle part, described inductor coil is a ring, two inductor coils are installed in the both sides of the protruding circular ring at iron core middle part, Returnning spring mounting hole on the described public iron core is a through hole, and a Returnning spring is arranged in the through hole, and respectively there is an armature at the two ends of Returnning spring.
3, dual-coil electromagnetic valve according to claim 2 is characterized in that: public iron core radially has one and connects gap.
4, dual-coil electromagnetic valve according to claim 1, it is characterized in that: described valve body is the middle square tube shape that has dividing plate, described iron core and public iron core formation " E " the shape assembling iron core that is structure as a whole, two " E " shape assembling iron cores lay respectively at the both sides of dividing plate, described inductor coil is the sunk area of square placing " E " shape assembling iron core, Returnning spring mounting hole on the described public iron core is the blind hole on the raised zones at " E " shape assembling iron core middle part, two Returnning springs are arranged at respectively in two blind holes on " E " shape assembling iron core, and there is an armature end of each Returnning spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100722774A CN101571206B (en) | 2009-06-15 | 2009-06-15 | Dual-coil electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100722774A CN101571206B (en) | 2009-06-15 | 2009-06-15 | Dual-coil electromagnetic valve |
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| Publication Number | Publication Date |
|---|---|
| CN101571206A true CN101571206A (en) | 2009-11-04 |
| CN101571206B CN101571206B (en) | 2010-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100722774A Expired - Fee Related CN101571206B (en) | 2009-06-15 | 2009-06-15 | Dual-coil electromagnetic valve |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916385A (en) * | 2015-06-23 | 2015-09-16 | 哈尔滨工程大学 | Axial cooling and radial coil type high-speed electromagnet |
| CN104916386A (en) * | 2015-06-23 | 2015-09-16 | 哈尔滨工程大学 | Axial cooling radial coil type parallel magnetic circuit electromagnet |
| CN104929834A (en) * | 2015-06-23 | 2015-09-23 | 哈尔滨工程大学 | Synchronous double-valve electromagnetic control oil atomizer |
| CN105448457A (en) * | 2015-12-10 | 2016-03-30 | 哈尔滨工程大学 | Radial multi-coil combined high-speed bidirectional electromagnet |
| CN105448462A (en) * | 2015-12-10 | 2016-03-30 | 哈尔滨工程大学 | Double-permanent-magnet high-speed bidirectional electromagnet |
| CN105448459A (en) * | 2015-12-10 | 2016-03-30 | 哈尔滨工程大学 | Multi-permanent magnet high-speed two-way electromagnet |
| CN107091361A (en) * | 2017-06-28 | 2017-08-25 | 浙江鑫业电子科技有限公司 | A kind of common rail magnetic valve |
-
2009
- 2009-06-15 CN CN2009100722774A patent/CN101571206B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916385A (en) * | 2015-06-23 | 2015-09-16 | 哈尔滨工程大学 | Axial cooling and radial coil type high-speed electromagnet |
| CN104916386A (en) * | 2015-06-23 | 2015-09-16 | 哈尔滨工程大学 | Axial cooling radial coil type parallel magnetic circuit electromagnet |
| CN104929834A (en) * | 2015-06-23 | 2015-09-23 | 哈尔滨工程大学 | Synchronous double-valve electromagnetic control oil atomizer |
| CN104929834B (en) * | 2015-06-23 | 2017-11-17 | 哈尔滨工程大学 | Synchronous bivalve electromagnetic control oil sprayer |
| CN105448457A (en) * | 2015-12-10 | 2016-03-30 | 哈尔滨工程大学 | Radial multi-coil combined high-speed bidirectional electromagnet |
| CN105448462A (en) * | 2015-12-10 | 2016-03-30 | 哈尔滨工程大学 | Double-permanent-magnet high-speed bidirectional electromagnet |
| CN105448459A (en) * | 2015-12-10 | 2016-03-30 | 哈尔滨工程大学 | Multi-permanent magnet high-speed two-way electromagnet |
| CN107091361A (en) * | 2017-06-28 | 2017-08-25 | 浙江鑫业电子科技有限公司 | A kind of common rail magnetic valve |
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|---|---|
| CN101571206B (en) | 2010-12-01 |
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Owner name: RUGAO PRODUCTIVITY PROMOTION CENTER Free format text: FORMER OWNER: HARBIN ENGINEERING UNIV. Effective date: 20130802 |
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Effective date of registration: 20130802 Address after: 226503 Deng yuan community, Rugao Economic Development Zone, Jiangsu 15 Patentee after: Rugao Productivity Promotion Center Address before: 150001 Heilongjiang, Nangang District, Nantong street, building No. 145, Harbin Engineering University, Intellectual Property Office Patentee before: Harbin Engineering Univ. |
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Granted publication date: 20101201 Termination date: 20180615 |