CN104864118A - Proportional control magnetic valve - Google Patents
Proportional control magnetic valve Download PDFInfo
- Publication number
- CN104864118A CN104864118A CN201510262540.1A CN201510262540A CN104864118A CN 104864118 A CN104864118 A CN 104864118A CN 201510262540 A CN201510262540 A CN 201510262540A CN 104864118 A CN104864118 A CN 104864118A
- Authority
- CN
- China
- Prior art keywords
- spool
- lug boss
- valve
- proportional control
- valve pocket
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/061—Sliding valves
- F16K31/0613—Sliding valves with cylindrical slides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0686—Braking, pressure equilibration, shock absorbing
- F16K31/0693—Pressure equilibration of the armature
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention provides a proportional control magnetic valve which comprises a spring seat, a valve sleeve, a valve element and a reset spring. The spring seat is fixedly installed at one end of an inner cavity of the valve sleeve, the valve element is installed in the inner cavity of the valve sleeve and moves in a straight line relative to the valve sleeve, the reset spring is installed between the spring seat and the valve element, an oil regulation port and an oil inlet which are communicated with the inner cavity of the valve sleeve are formed in the valve sleeve, a protruding part is fixedly connected to the inner cavity wall, located between the oil regulation port and the oil inlet, of the valve sleeve, the protruding part is opposite to the valve element protruding shoulder of the valve element, and when certain pressure exists in the inner cavity between the protruding part and the valve element protruding shoulder, the valve element can only move towards the direction of the oil regulation port relative to the valve sleeve. According to the proportional control magnetic valve, when a circuit breaks down or a magnetic core is blocked, the magnetic valve can still effectively regulate the valve element with the help of the pressure of the pressure medium entering the inner cavity, and it is guaranteed that the magnetic valve is within the safe pressure range.
Description
Technical field
The present invention relates to a kind of solenoid valve, especially relate to a kind of proportional control electromagnetic valve that can carry out proportion adjustment to closed actuator hydraulic pressure.
Background technique
Existing engine lube oil system mainly comprises oil pump, oil filter and proportional control electromagnetic valve, the machine oil that oil pump pumps enters the filler opening of proportional control electromagnetic valve after oil filter is filtered, after solenoid valves, magnetic core wherein (is generally iron core, lower same) promote spool relative to valve pocket left and right straight line motion, thus the openings of sizes of the adjustment hydraulic fluid port on solenoid valve is regulated, part machine oil, after the adjustment hydraulic fluid port outflow solenoid valve, reenters oil pump.The openings of sizes regulating hydraulic fluid port is determined by the electromagnetic force size of solenoid valve, and by changing the size of solenoid electric current, the openings of sizes can exchanging fuel-economizing mouth regulates in real time.When high engine speeds is rotated, the pressure of lubricating oil system is higher, now, the engine oil pressure entered in solenoid valve inner chamber is correspondingly also higher, if the circuitry of solenoid valve breaks down, or the mechanical failure such as magnetic core generation clamping stagnation in solenoid valve, magnetic core will be caused cannot to regulate spool, make solenoid valve be in failure state, thus the adjustment to lubricating oil system pressure cannot be realized; And, if the engine oil pressure in solenoid valve inner chamber is beyond the safety pressure scope of solenoid valve, solenoid valve permanent failure will be caused, even cause security incident.
Summary of the invention
The technical problem to be solved in the present invention is: for prior art Problems existing, a kind of proportional control electromagnetic valve is provided, even if the magnetic core of solenoid valve cannot regulate spool, solenoid valve still can by means of the effective adjustment of pressure realization to spool of the pressure medium entered in its inner chamber.
The technical problem to be solved in the present invention realizes by the following technical solutions: a kind of proportional control electromagnetic valve, comprise spring seat, valve pocket and spool and Returnning spring, described spring seat is fixedly mounted on valve pocket inner chamber one end, described spool to be arranged in valve pocket inner chamber and relative to valve pocket straight line motion, described Returnning spring is arranged between spring seat and spool, described valve pocket is offered the adjustment hydraulic fluid port and filler opening that communicate with valve pocket inner chamber, the internal chamber wall regulating the valve pocket between hydraulic fluid port and filler opening is being fixedly connected with lug boss, described lug boss is relative with the spool convex shoulder on spool, when there is certain pressure in the cavity between lug boss and spool convex shoulder, spool can only move to adjustment hydraulic fluid port direction relative to valve pocket.
Preferably, described lug boss is right angle boss, and end face relative with spool convex shoulder on lug boss and spool are mutually vertical.
Preferably, described lug boss is reducing step, and the peak of lug boss to the perpendicular distance of spool is greater than the perpendicular distance of minimum point to spool of lug boss.
Preferably, end face relative with spool convex shoulder on described lug boss is conical surface, and the line between the peak of lug boss and minimum point and the angle between center spool axis are acute angle.
Preferably, described lug boss be that integrated molding is connected between valve pocket.
Preferably, described spring seat be fixedly connected with interference fit between valve pocket.
Preferably, described spring seat is corrugated, forms groove in the middle part of it, and the internal diameter of described groove is greater than or equal to the external diameter of Returnning spring.
Preferably, it is protruding that the groove both sides in the middle part of described spring seat arrange " n " shape respectively.
Preferably, described spring seat offers through hole.
Compared with prior art, the invention has the beneficial effects as follows: pressure medium is as machine oil, the cavity between lug boss and spool convex shoulder is entered into from the filler opening of solenoid valve, when the circuit of solenoid valve breaks down, or during magnetic core generation Block failure, because magnetic core cannot regulate spool, simultaneously, Returnning spring can not carry out reset to spool and regulate, therefore, the inlet pressure of solenoid valve raises, the engine oil pressure be in the cavity between lug boss and spool convex shoulder also raises, machine oil forms certain pressure on the lug boss of valve pocket inner chamber, when this pressure component in the horizontal direction exceedes the elastic force of Returnning spring to spool, namely spool moves to adjustment hydraulic fluid port direction relative to valve pocket under the horizontal component effect of this pressure, the filler opening of solenoid valve is connected with regulating hydraulic fluid port, ensure that solenoid valve is within safety pressure scope, thus achieve the pressure realization effective adjustment to spool of solenoid valve by means of the pressure medium entered in its inner chamber.
Accompanying drawing explanation
Fig. 1 is the tectonic maps (mode of execution one) of a kind of proportional control electromagnetic valve of the present invention.
Fig. 2 is the partial enlarged drawing in A portion in Fig. 1.
Fig. 3 is the tectonic maps (mode of execution two) of a kind of proportional control electromagnetic valve of the present invention.
Fig. 4 is the partial enlarged drawing in B portion in Fig. 3.
Figure middle part product token name claims: 1-spring seat, 2-valve pocket, and 3-regulates hydraulic fluid port, 4-filler opening, 5-shell, 6-pole shoe, 7-o, 8-magnetic core, 9-guide pin bushing, 10-pad, 11-spool, 12-filter screen, 13-Returnning spring, 14-cools down oil drain out, 15-lug boss, 101-through hole, 110-spool convex shoulder.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with the drawings and specific embodiments, the present invention is described in detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1
A kind of proportional control electromagnetic valve as shown in Figure 1 and Figure 2, mainly comprise spring seat 1, valve pocket 2, spool 11, Returnning spring 13, pole shoe 6 and o 7 and magnetic core 8, described magnetic core 8 to be arranged in guide pin bushing 9 inner chamber and can relative to guide pin bushing 9 linear slide, front end and the pole shoe 6 of magnetic core 8 are socketed, and be connected with end in contact after spool 11, described o 7 is sleeved on guide pin bushing 9, and described pole shoe 6 is installed in the inner chamber of shell 5 with o 7.Valve pocket 2 rear end is arranged in shell 5 inner chamber, and is fixedly connected with shell 5 by pad 10, and meanwhile, valve pocket 2 rear end connects with sealing between pole shoe 6 to contact.Described spring seat 1 is fixedly connected on the front end of valve pocket 2 inner chamber with interference fit, so not only structure is simple, compact, and easy processing, and efficiency of assembling is high.Described spool 11 is arranged in valve pocket 2 inner chamber, and described Returnning spring 13 is arranged between spring seat 1 and spool 11.After o 7 is energized, magnetic core 8 is relative to guide pin bushing 9 straight line motion, and magnetic core 8 drives spool 11 relative to valve pocket 2 also moving linearly, and compression reseting spring 13; When after o 7 power-off, the elastic force of Returnning spring 13 drives spool 11 to make straight line motion in the other direction, until spool 11 resets completely relative to valve pocket 2.Valve pocket 2 is offered adjustment hydraulic fluid port 3, the filler opening 4 and oil drain out 14 of cooling down that communicate with valve pocket 2 inner chamber, described adjustment hydraulic fluid port 3, filler opening 4 install filter screen 12 respectively, to ensure that the pressure medium entering valve pocket 2 inner chamber is as the turbidity test of machine oil, stop foreign impurity etc. to enter in valve pocket 2 inner chamber simultaneously.The internal chamber wall regulating the valve pocket 2 between hydraulic fluid port 3 and filler opening 4 is being fixedly connected with lug boss 15, and described lug boss 15 is relative with the spool convex shoulder 110 on spool 11.As shown in Figure 2, described lug boss 15 is right angle boss, and end face relative with spool convex shoulder 110 on lug boss 15 is mutually vertical with spool 11.
When having pressure medium as machine oil, after the filler opening 4 of above-mentioned solenoid valve enters into the cavity between lug boss 15 and spool convex shoulder 110, if the circuit of solenoid valve breaks down, magnetic core 8 cannot drive spool 11 to move, or Block failure occurs magnetic core 8, magnetic core 8 also cannot drive spool 11 to move.In this case, engine oil pressure in cavity between lug boss 15 and spool convex shoulder 110 raises, this engine oil pressure acts on lug boss 15, lug boss 15 pairs of machine oil form the reaction force of forward direction, this reaction force acts on spool convex shoulder 110 by machine oil, thus make spool 11 can only be that forward direction moves, and can not backward directions move.When this reaction force component in the horizontal direction exceedes the elastic force of Returnning spring 13 pairs of spools 11, namely spool 11 moves to adjustment hydraulic fluid port 3 direction relative to valve pocket 2 under the horizontal component effect of this reaction force, and the filler opening 4 of solenoid valve is connected with regulating hydraulic fluid port 3.Therefore, namely the pressure machine oil in valve pocket 2 inner chamber can discharge solenoid valve by adjustment hydraulic fluid port 3, oil drain out 14 of cooling down, and the pressure of valve pocket 2 inner chamber is reduced.When the Pressure Drop of valve pocket 2 inner chamber is low to moderate the elastic force being less than Returnning spring 13 pairs of spools 11, spool 11 moves under the resilient force of Returnning spring 13 to filler opening 4 direction, until spool 11 resets completely, thus solenoid valve can be made to be within safety pressure scope, achieve the pressure of solenoid valve by means of pressure medium in valve pocket 2 inner chamber to effective adjustment of spool 11.Because lug boss 15 is right angle boss, therefore, the reaction force that lug boss 15 pairs of machine oil are formed is concentrated in the horizontal direction substantially, namely this reaction force component is in the horizontal direction maximum, this is conducive to the sensitivity of the pressure sensitive improving spool 11 pairs of valve pocket 2 inner chambers, and then improves the pressure of solenoid valve by means of pressure medium in valve pocket 2 inner chamber carries out proportion adjustment adjustment sensitivity to spool 11.
Embodiment 2
As shown in Figure 3, Figure 4, compared with embodiment 1, mainly the structure of lug boss 15 is different for proportional control electromagnetic valve in the present embodiment.Specifically, as shown in Figure 4, described lug boss 15 is reducing step, peak H on lug boss 15 is greater than the perpendicular distance of the minimum point L on lug boss 15 to spool 11 to the perpendicular distance of spool 11, so just makes the line between the peak H of lug boss 15 and minimum point L and the angle between spool 11 central axis be acute angle.Therefore, after engine oil pressure in cavity between lug boss 15 and spool convex shoulder 110 raises, this engine oil pressure acts on lug boss 15, the reaction force that lug boss 15 pairs of machine oil are formed has certain component in the horizontal direction with on vertical direction simultaneously, wherein, component in substantially horizontal acts on spool convex shoulder 110 by machine oil, thus makes spool 11 can only be that forward direction moves, and can not backward directions move; Component on vertical direction is then act radially on spool 11, its tandem on spool 11 motion not impact.When the component in this substantially horizontal exceedes the elastic force of Returnning spring 13 pairs of spools 11, namely spool 11 moves to adjustment hydraulic fluid port 3 direction relative to valve pocket 2 under this horizontal component effect, the filler opening 4 of solenoid valve is connected with regulating hydraulic fluid port 3, and the other the same as in Example 1, does not repeat them here.
It should be noted that, in these cases, because lug boss 15 is reducing step, therefore, on lug boss 15 each point to the direction of the reaction force that machine oil is formed, not of uniform sizely to cause, this can have influence on the sensitivity of the pressure sensitive of spool 11 pairs of valve pocket 2 inner chambers.For this reason, end face relative with spool convex shoulder 110 on lug boss 15 can be designed to conical surface, and, line between the peak H of lug boss 15 and minimum point L and the angle between spool 11 central axis are also acute angle, each point can be made on lug boss 15 like this to the direction of the reaction force that machine oil is formed, size reaches unanimity as far as possible, and, the reaction force that lug boss 15 pairs of machine oil are formed has certain component in the horizontal direction with on vertical direction simultaneously, be conducive to the sensitivity of the pressure sensitive improving spool 11 pairs of valve pocket 2 inner chambers, and then improve the pressure of solenoid valve by means of pressure medium in valve pocket 2 inner chamber carries out proportion adjustment adjustment sensitivity to spool 11, enhance the adjustment stationarity of solenoid valve.
In above-mentioned solenoid valve, described lug boss 15 with can be that integrated molding is connected between valve pocket 2, such as adopt the direct machine shaping of Vehicle Processing mode, so not only structure is simple, easy processing, and the join strength that can ensure between lug boss 15 and valve pocket 2 well, be conducive to the manufacture cost reducing solenoid valve.As shown in Figure 1, Figure 3, spring seat 1 wherein, in corrugated, forms groove in the middle part of it, groove is offered through hole 101 and communicates with oil drain out 14 of cooling down, the internal diameter of described groove is greater than or equal to the external diameter of Returnning spring 13, to facilitate installation and the replacing of Returnning spring 13; Described through hole 101 facilitates the oil in valve pocket 2 inner chamber, gas to discharge solenoid valve by oil drain out 14 of cooling down.In addition, it is protruding that groove both sides in the middle part of described spring seat 1 can also arrange " n " shape respectively, " n " shape projection at this place can make spring seat 1 have better axial elasticity, itself and Returnning spring 13 cooperatively interact, the kinematic dexterity of spool 11 can be improved, be conducive to improving the pressure of solenoid valve by means of pressure medium in valve pocket 2 inner chamber carries out proportion adjustment adjustment sensitivity to spool 11.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, it should be pointed out that all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a proportional control electromagnetic valve, it is characterized in that: comprise spring seat (1), valve pocket (2) and spool (11) and Returnning spring (13), described spring seat (1) is fixedly mounted on valve pocket (2) inner chamber one end, described spool (11) to be arranged in valve pocket (2) inner chamber and relative to valve pocket (2) straight line motion, described Returnning spring (13) is arranged between spring seat (1) and spool (11), described valve pocket (2) is offered the adjustment hydraulic fluid port (3) and filler opening (4) that communicate with valve pocket (2) inner chamber, the internal chamber wall being positioned at the valve pocket (2) between adjustment hydraulic fluid port (3) and filler opening (4) is fixedly connected with lug boss (15), described lug boss (15) is relative with the spool convex shoulder (110) on spool (11), when there is certain pressure in the cavity between lug boss (15) and spool convex shoulder (110), spool (11) can only move to adjustment hydraulic fluid port (3) direction relative to valve pocket (2).
2. a kind of proportional control electromagnetic valve according to claim 1, it is characterized in that: described lug boss (15) is right angle boss, the upper end face relative with spool convex shoulder (110) of lug boss (15) is mutually vertical with spool (11).
3. a kind of proportional control electromagnetic valve according to claim 1, it is characterized in that: described lug boss (15) is reducing step, the peak (H) of lug boss (15) to the perpendicular distance of spool (11) is greater than the perpendicular distance of minimum point (L) to spool (11) of lug boss (15).
4. a kind of proportional control electromagnetic valve according to claim 3, it is characterized in that: the upper end face relative with spool convex shoulder (110) of described lug boss (15) is conical surface, and the line between the peak (H) of lug boss (15) and minimum point (L) and the angle between spool (11) central axis are acute angle.
5. a kind of proportional control electromagnetic valve according to any one of claim 1-4, is characterized in that: described lug boss (15) be that integrated molding is connected between valve pocket (2).
6. a kind of proportional control electromagnetic valve according to claim 1, is characterized in that: described spring seat (1) be fixedly connected with interference fit between valve pocket (2).
7. a kind of proportional control electromagnetic valve according to claim 1 or 6, it is characterized in that: described spring seat (1) is in corrugated, form groove in the middle part of it, and the internal diameter of described groove is greater than or equal to the external diameter of Returnning spring (13).
8. a kind of proportional control electromagnetic valve according to claim 7, is characterized in that: the groove both sides at described spring seat (1) middle part arrange " n " shape projection respectively.
9. a kind of proportional control electromagnetic valve according to claim 7, is characterized in that: described spring seat (1) offers through hole (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510262540.1A CN104864118A (en) | 2015-05-21 | 2015-05-21 | Proportional control magnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510262540.1A CN104864118A (en) | 2015-05-21 | 2015-05-21 | Proportional control magnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104864118A true CN104864118A (en) | 2015-08-26 |
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ID=53910161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510262540.1A Pending CN104864118A (en) | 2015-05-21 | 2015-05-21 | Proportional control magnetic valve |
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| Country | Link |
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| CN (1) | CN104864118A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122571A (en) * | 2016-08-30 | 2016-11-16 | 航宇救生装备有限公司 | Electronics anti-G valve with mechanical backup |
| CN108426092A (en) * | 2017-11-06 | 2018-08-21 | 联合汽车电子有限公司 | A kind of Secondary Control method of valve member, solenoid valve and solenoid valve compressed spring |
| CN109185509A (en) * | 2018-11-19 | 2019-01-11 | 绵阳富临精工机械股份有限公司 | A kind of unidirectional electromagnetic valve for adjusting structure |
| CN109339895A (en) * | 2018-11-06 | 2019-02-15 | 江苏太平洋精锻科技股份有限公司 | A kind of VVT engine OCV valve body |
| CN109854322A (en) * | 2019-04-01 | 2019-06-07 | 绵阳富临精工机械股份有限公司 | A kind of center sliding valve structure |
| JP2020176719A (en) * | 2019-04-17 | 2020-10-29 | ハーヴェー ハイドローリック エスイー | Proportional hydraulic valve |
| CN114321440A (en) * | 2021-12-30 | 2022-04-12 | 中航工业南京伺服控制***有限公司 | Intelligent material driving differential type redundancy servo valve and working method thereof |
| JP2022123863A (en) * | 2021-02-12 | 2022-08-24 | トーマス マグネト ゲーエムベーハー | Electric hydraulic pressure regulation valve |
| CN116771950A (en) * | 2021-03-30 | 2023-09-19 | 陕西华诚领航电磁科技有限责任公司 | Proportional solenoid valve and pressure regulating device therein |
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| CN204647421U (en) * | 2015-05-21 | 2015-09-16 | 绵阳富临精工机械股份有限公司 | A kind of proportional control electromagnetic valve |
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| US20060162682A1 (en) * | 2003-12-25 | 2006-07-27 | Denso Corporation | Solenoid spool valve |
| US20080072978A1 (en) * | 2006-09-21 | 2008-03-27 | Denso Corporation | Spool valve |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122571A (en) * | 2016-08-30 | 2016-11-16 | 航宇救生装备有限公司 | Electronics anti-G valve with mechanical backup |
| CN108426092A (en) * | 2017-11-06 | 2018-08-21 | 联合汽车电子有限公司 | A kind of Secondary Control method of valve member, solenoid valve and solenoid valve compressed spring |
| CN109339895A (en) * | 2018-11-06 | 2019-02-15 | 江苏太平洋精锻科技股份有限公司 | A kind of VVT engine OCV valve body |
| CN109185509A (en) * | 2018-11-19 | 2019-01-11 | 绵阳富临精工机械股份有限公司 | A kind of unidirectional electromagnetic valve for adjusting structure |
| CN109185509B (en) * | 2018-11-19 | 2024-04-02 | 绵阳富临精工机械股份有限公司 | One-way regulation solenoid valve structure |
| CN109854322A (en) * | 2019-04-01 | 2019-06-07 | 绵阳富临精工机械股份有限公司 | A kind of center sliding valve structure |
| JP2020176719A (en) * | 2019-04-17 | 2020-10-29 | ハーヴェー ハイドローリック エスイー | Proportional hydraulic valve |
| JP2022123863A (en) * | 2021-02-12 | 2022-08-24 | トーマス マグネト ゲーエムベーハー | Electric hydraulic pressure regulation valve |
| JP7358524B2 (en) | 2021-02-12 | 2023-10-10 | トーマス マグネト ゲーエムベーハー | electrohydraulic pressure regulating valve |
| CN116771950A (en) * | 2021-03-30 | 2023-09-19 | 陕西华诚领航电磁科技有限责任公司 | Proportional solenoid valve and pressure regulating device therein |
| CN114321440A (en) * | 2021-12-30 | 2022-04-12 | 中航工业南京伺服控制***有限公司 | Intelligent material driving differential type redundancy servo valve and working method thereof |
| CN114321440B (en) * | 2021-12-30 | 2024-03-15 | 中航工业南京伺服控制***有限公司 | Intelligent material driven differential redundancy servo valve and working method thereof |
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