CN1131387C - Two-position and three-way solenoid valve with double free inner conic cores - Google Patents
Two-position and three-way solenoid valve with double free inner conic cores Download PDFInfo
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- CN1131387C CN1131387C CN 00115916 CN00115916A CN1131387C CN 1131387 C CN1131387 C CN 1131387C CN 00115916 CN00115916 CN 00115916 CN 00115916 A CN00115916 A CN 00115916A CN 1131387 C CN1131387 C CN 1131387C
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Abstract
The present invention relates to a novel two-position three-way high-speed switch type electromagnetic valve with a cone valve type structure, which is composed of an outer valve, a valve body, a right inner cone valve core, a left inner cone valve core, a static iron core, a restoring spring, a movable iron core, a pressing cover and a connecting piece, wherein the part of the static iron core is in an annular multipolar structure. The present invention has the characteristics of high-speed dynamic response performance and high flow rate and has the advantages of favorable performance of processing technology and low manufacturing cost. The present invention carries out direct digital control on the flow rate or the pressure of a fluidic system. Under the condition that structural changes are not made, the present invention can be used as both a normally close valve and a normally open valve. The present invention is applicable to electrically controlled diesel oil spraying systems or other relevant electromechanical integration systems.
Description
Technical field
The present invention relates to a kind of high-speed large-flow solenoid valve, the high-speed large-flow solenoid valve that particularly a kind of electronic diesel injection system is used.
Background technique
In general, the high-speed response characteristic of switch type solenoid valve and big Flow characteristics are a pair of unities of contradictions.Many solenoid valves with high speed response property, because the restriction of its Flow characteristics, can not use is having flow in the hydraulic fluid system of requirement; Many solenoid valves with big Flow characteristics are because the restriction of its response performance can not be used in the high hydraulic fluid system of dynamic response requirement.And at some to response speed and traffic requirement all in the higher hydraulic fluid system, general switching regulator magnetic valve is difficult to be competent at.Such as more present advanced electronic Control for Diesel Engine fuel injection systems, employed magnetic valve is required not only have good response characteristic but also have big discharge characteristic, to satisfy the high-efficiency low-pollution diesel engine to the strict demand of fuel injection system.
In order to satisfy of the high-speed large-flow requirement of picture electronic Control for Diesel Engine fuel injection system to solenoid valve, domestic and international many research institutions have carried out comparatively deep research to high-speed large-flow switch type solenoid valve, research emphasis concentrates on the electromagnet part of solenoid valve, the electromagnet structure of several types has obtained using widely, as the ring-type multi-pole type electromagnet of U.S. FORD company, the DISOLE plate-like profile electromagnet of Japan electric coating company, the rib shape three-pole electromagnet of University of Toronto's exploitation etc.But spool, valve body structure to solenoid valve are studied lessly, especially for two-position three way formula solenoid valve.In fact, the structure of spool, valve body has material impact to the high speed response property and the big flow performance of solenoid valve.Reasonably structure can reduce the impact of hydraulic power, can obtain maximum stream flow in the situation of the size that does not increase valve and quality, can obtain best process industrial art performance, thereby can reduce the cost of valve in the performance that improves valve.The diesel electric-controlled fuel injection system HEUI high-speed and great rate of flow solenoid valve of U.S. CAT company, its spool adopts the high low pressure equilibrium structure, to eliminate the influence of static liquid power, adopt the cone valve type structure to obtain fast-response energy and big flow performance.But it lacks good process industrial art performance as traditional two-position three way formula cone valve, and its requirement on machining accuracy is very high, thereby the manufacturing cost height.The thread cartridge formula high-speed electromagnetic valve that China Kweiyang red woods group produces adopts the ball-valve type structure, and its speed of response is fast, and technology capability is good.But owing to the impact of hydraulic power to ball valve, the ball valve diameter is generally very little, thereby the flow area of valve is little, and discharge characteristic is poor.ECD-U2 system of Japan electric coating company high-speed electromagnetic valve adopts inside and outside valve arrangement, and its response characteristic and Flow characteristics all meet the demands easily, and technology capability is good.But, because the restriction of this valve arrangement can only be made two-position three way valve open in usual, limited its scope of application.
Summary of the invention
The purpose of this invention is to provide a kind of novel high-speed large-flow switch type solenoid valve is two-position and three-way solenoid valve with double free inner conic cores, when having the high-speed large-flow characteristic, has good process industrial art performance again, to reduce manufacture cost.
The object of the present invention is achieved like this:
The present invention is the cone valve type structure, is made of poppet valve core, static iron core, Returnning spring, moving iron core, gland, connecting piece in outer valve, valve body, right interior poppet valve core, the left side.Left inside poppet valve core and right inside poppet valve core are free to slide in the valve outside, add man-hour they with separately contact cylinder, step surface carries out bedding-in, to guarantee reliable movable sealing.No coaxality requirement between two interior poppet valve cores makes its process industrial art performance approach bi-bit bi-pass formula cone valve.Outer valve is hollow-core construction, and quality is light.The endoporus of outer valve outer surface and valve body carries out bedding-in, belongs to movable sealing, and it and moving iron core are made of one, can left and right motion in valve body.The sealing cylinder diameter of minimum diameter of bore and left inside poppet valve core and right inside poppet valve core is more or less the same on the outer valve, to reduce the impact of static liquid power as far as possible.
Do the Normally closed type valve time spent, its right-hand member oil duct is a filler opening, and middle oil duct is the control mouth, and the left end oil duct is a return opening.When magnetic valve was switched on, under the effect of electromagnetic force, moving iron core and outer valve overcame the back-moving spring resistance to left movement, until outer valve and left inside poppet valve core compress, because the effect of hydraulic coupling, right inside poppet valve core still is in the least significant, separates with outer valve.At this moment, oil-in is communicated with the control mouth, and oil return opening disconnects with the control mouth, and magnetic valve is in opening; During outage, moving iron core and outer valve move right under the effect of back-moving spring, until outer valve and right inside poppet valve core compress, because the effect of hydraulic coupling, left inside poppet valve core still is in leftmost position, separates with outer valve.At this moment, filler opening and control mouthful disconnection, return opening is communicated with the control mouth, and solenoid valve is in closed condition.
Do the valve time spent open in usual, its left end oil duct is a filler opening, and middle oil duct is the control mouth, and the right-hand member oil duct is a return opening.When solenoid valve was switched on, under the effect of electromagnetic force, moving iron core and outer valve overcame the Returnning spring resistance to left movement, and poppet valve core compresses in an outer valve and a left side, separated with poppet valve core in the right side.At this moment, oil-in and control mouthful disconnection, oil return opening is communicated with the control mouth, and magnetic valve is in closed condition; During outage, moving iron core and outer valve move right under the effect of back-moving spring, until outer valve and right inside poppet valve core compress, separate with left inside poppet valve core.At this moment, filler opening is communicated with the control mouth, and return opening disconnects with the control mouth, and solenoid valve is in opening state.
Utilize microcomputer control, under the pulse-width signal effect, realize the above-mentioned action of magnetic valve, flow and pressure that can fluid system carry out Direct Digital control.
Advantage of the present invention is: owing to adopted the cone valve type structure, its stroke is short, latus rectum is big, it is little affected by hydraulic power, because outer valve is hollow-core construction, thereby quality is light.Simultaneously, electromagnet partly adopts ring-type multipolar system structure, and electromagnetic force is big, fast response time.The two is worked in coordination, and makes solenoid valve both have the high speed dynamic response performance, has big Flow characteristics again.The double free inner conic cores valve core structure has been broken the Design Mode of traditional two-position three way formula cone valve structure, makes two-position three way formula cone valve obtain good process industrial art performance, has reduced manufacture cost.And this structure promptly can be made the Normally closed type valve and use under the situation of not making any modification, also can make valve open in usual and use, and has widened its application area greatly.
Description of drawings
Fig. 1 is a vertical section structure schematic representation of the present invention.
Fig. 2 is a plan view of the present invention.
Embodiment
The present invention is the cone valve type structure, is made of poppet valve core 4, static iron core 5, Returnning spring 6, moving iron core 7, gland 8, sunk screw 9 in outer valve 1, valve body 2, right interior poppet valve core 3, the left side.Left inside poppet valve core 4 and right inside poppet valve core 3 are free to slide in the valve 1 outside, add man-hour they with separately contact cylinder, step surface carries out bedding-in, to guarantee reliable movable sealing.No coaxality requirement between two interior poppet valve cores.Outer valve 1 is a hollow-core construction, and the endoporus of outer valve 1 outer surface and valve body 2 carries out bedding-in, belongs to motive sealing, and it and moving armature 7 are made of one, can left and right motion in valve body 2.The sealing cylinder diameter of minimum diameter of bore and left inside poppet valve core 4 and right inside poppet valve core 3 is more or less the same on the outer valve 1, to reduce the impact of static liquid power as far as possible.Gland 8 connects with valve body 2 usefulness sunk screws 9.
Do the Normally closed type valve time spent, its right-hand member oil duct 12 is a filler opening, and middle oil duct 11 is the control mouth, and left end oil duct 10 is a return opening.When magnetic valve was switched on, under the effect of electromagnetic force, moving armature 7 and outer valve 1 overcame back-moving spring 6 resistances to left movement, until outer valve 1 compresses with left inside poppet valve core 4, because the effect of hydraulic coupling, right inside poppet valve core 3 still is in the least significant, separates with outer valve 1.At this moment, oil-in is communicated with the control mouth, and oil return opening disconnects with the control mouth, and magnetic valve is in opening; During outage, moving armature 7 and outer valve 1 move right under the effect of back-moving spring 6, until outer valve 1 compresses with right inside poppet valve core 3, because the effect of hydraulic coupling, left inside poppet valve core 4 still is in leftmost position, separates with outer valve 1.At this moment, filler opening and control mouthful disconnection, return opening is communicated with the control mouth, and solenoid valve is in closed condition.
Do the valve time spent open in usual, its left end oil duct 10 is a filler opening, and middle oil duct 11 is the control mouth, and right-hand member oil duct 12 is a return opening.When magnetic valve was switched on, under the effect of electromagnetic force, moving armature 7 and outer valve 1 overcame back-moving spring 6 resistances to left movement, until outer valve 1 compresses with left inside poppet valve core 4, separated with right inside poppet valve core 3.At this moment, oil-in and control mouthful disconnection, oil return opening is communicated with the control mouth, and magnetic valve is in closed condition; During outage, moving armature 7 and outer valve 1 move right under the effect of back-moving spring, until outer valve 1 compresses with right inside poppet valve core 3, separate with left inside poppet valve core 4.At this moment, filler opening is communicated with the control mouth, and return opening disconnects with the control mouth, and solenoid valve is in opening state.
Claims (1)
1, a kind of double free inner conic cores spool two-position three way magnetic valve, it is characterized in that: be the cone valve type structure, constitute by poppet valve core (4), static iron core (5), Returnning spring (6), moving iron core (7), gland (8), connecting piece (9) in outer valve (1), valve body (2), right interior poppet valve core (3), the left side; Poppet valve core (4) and right interior poppet valve core (3) are free to slide in the valve (1) outside in the left side; Outer valve (1) is a hollow-core construction, is made of one left and right motion in valve body (2) during work with moving iron core (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00115916 CN1131387C (en) | 2000-07-28 | 2000-07-28 | Two-position and three-way solenoid valve with double free inner conic cores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00115916 CN1131387C (en) | 2000-07-28 | 2000-07-28 | Two-position and three-way solenoid valve with double free inner conic cores |
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| Publication Number | Publication Date |
|---|---|
| CN1277334A CN1277334A (en) | 2000-12-20 |
| CN1131387C true CN1131387C (en) | 2003-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 00115916 Expired - Fee Related CN1131387C (en) | 2000-07-28 | 2000-07-28 | Two-position and three-way solenoid valve with double free inner conic cores |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851226A (en) * | 2014-03-24 | 2014-06-11 | 武汉理工大学 | High speed high flow self-resetting electromagnetic valve |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453174B (en) * | 2013-08-23 | 2015-08-19 | 浙江亿太诺气动科技有限公司 | A kind of sliding bush type two-position three way Pneumatic high-speed switch valve |
| CN104595265B (en) * | 2013-10-30 | 2017-02-22 | 北京精密机电控制设备研究所 | Electromagnetic valve of floating piston type structure |
| CN105508339B (en) * | 2015-12-09 | 2017-07-07 | 广西柳工机械股份有限公司 | control valve and loader hydraulic control system |
| CN105526158B (en) * | 2015-12-22 | 2017-11-21 | 武汉工程大学 | A kind of Miniature diaphragm pump filter |
| CN105782498A (en) * | 2016-04-26 | 2016-07-20 | 武汉理工大学 | Double-electromagnet control high-speed electromagnetic valve |
| CN106015593B (en) * | 2016-05-19 | 2019-05-14 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | A kind of switch electromagnetic valve for electro-hydraulic variable valve actuation |
| CN108119276B (en) * | 2017-12-20 | 2020-02-07 | 武汉理工大学 | Piezoelectric high-speed large-flow two-position three-way valve |
-
2000
- 2000-07-28 CN CN 00115916 patent/CN1131387C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851226A (en) * | 2014-03-24 | 2014-06-11 | 武汉理工大学 | High speed high flow self-resetting electromagnetic valve |
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| Publication number | Publication date |
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| CN1277334A (en) | 2000-12-20 |
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