CN108302242A - A kind of miniature high-speed digital valve - Google Patents
A kind of miniature high-speed digital valve Download PDFInfo
- Publication number
- CN108302242A CN108302242A CN201810090554.3A CN201810090554A CN108302242A CN 108302242 A CN108302242 A CN 108302242A CN 201810090554 A CN201810090554 A CN 201810090554A CN 108302242 A CN108302242 A CN 108302242A
- Authority
- CN
- China
- Prior art keywords
- valve
- bonnet
- spool
- core rod
- valve seat
- 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
-
- 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
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- 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
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a kind of miniature high-speed digital valves, including tightening piece, resetting spring, spring lever, bonnet, coil rack, coil, valve core rod, valve pocket, magnetic guiding loop, spool cone, valve seat etc.；Bonnet is the column structure with endoporus, and spring lever longer end injects in the endoporus of bonnet, and resetting spring is mounted in spring lever shorter end, and tightening piece right side is fixedly connected with bonnet left side；Coil is wrapped on coil rack, and coil rack is fixed on valve pocket, and valve pocket is fixed with bonnet step end face；Spring lever longer end end face is contacted with spool rod end surface, and magnetic guiding loop is mounted in the annulus hole that valve core rod external cylindrical surface and valve pocket inner cylinder face are constituted, and valve seat is sleeved on valve core rod, and valve seat left side is fixedly connected with valve pocket right side, magnetic guiding loop right side；Spool bores one end, and there is the conical surface, the other end to have boss, the boss interference fit of valve core rod endoporus and spool cone；Digital valve of the present invention has the characteristics that structure formed, electromagnetic efficiency is high, with long service life.
Description
Technical field
The invention belongs to digital valve field more particularly to the miniature high-speeds of a kind of spring overhead, spool split structure
Digital valve.
Background technology
Digital valve is all widely used in industries such as automobile, water power, lathe, various engineering machinery and space flight and aviation, together
When digital valve also have many engineer applications in Hydraulic Elements field.Hydraulic system to low cost, want by high reliability and redundancy
It asks, the proportional servo technology for keeping digital hydraulic technical substitution traditional proposes practical application request.High-speed figure valve is as number
The core element of Hydraulic Elements, performance quality are directly related to the working characteristics of system level.
Currently, the high frequency response of hydraulic High-speed digital valve requires the contradiction of (rapidity) between big flow in the prior art
The electromagnetic efficiency for still having, while how improving high-speed figure valve is also highly important, mitigates high-speed figure valve in addition
Fretting wear is also of great significance to improve the service life of high-speed figure valve.
Invention content
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of miniature high-speed digital valve, which has knot
Structure is simple, structure formed, electromagnetic efficiency is high, feature with long service life.
The purpose of the present invention is achieved through the following technical solutions：A kind of miniature high-speed digital valve, including including tight
It is logical to determine part, resetting spring, spring lever, bonnet, coil rack, coil, valve core rod, valve pocket, magnetic guiding loop, spool cone, valve seat, oil inlet
Road and oil discharge passage；
The bonnet is the column structure with endoporus, has annular convex platform on the spring lever, is divided by annular convex platform
Longer end and shorter end, spring lever longer end inject in the endoporus of bonnet, and resetting spring is mounted in spring lever shorter end, tightening
Part right side is fixedly connected with bonnet left side；
The coil is wrapped on coil rack, and coil rack is fixed on valve pocket, and valve pocket is fixed with bonnet step end face；
Spring lever longer end end face is contacted with spool rod end surface, and magnetic guiding loop is mounted on valve core rod external cylindrical surface and valve pocket inner cylinder face
In the annulus hole of composition, valve seat is sleeved on valve core rod, and valve seat left side is fixedly connected with valve pocket right side, magnetic guiding loop right side；
The spool cone is column structure, and there is the conical surface, the other end to have cylindrical boss, valve core rod endoporus and spool for one end
The cylindrical boss of cone is interference fitted；
Have several oil inlet passages and an oil discharge passage on the valve seat, the conical surface of spool cone and valve seat it is fuel-displaced
Channel matches to form sealing.
Further, the first sealing ring is installed between the tightening piece right side and bonnet left side；The coil bone
Second sealing ring is installed between frame left side and bonnet step end face；The coil rack right side and magnetic guiding loop left side it
Between third sealing ring is installed；The 4th sealing ring is installed between the valve seat left side and magnetic guiding loop right side；The valve seat
External cylindrical surface is equipped with the 5th sealing ring；The valve seat right side is equipped with the 6th sealing ring.
Further, the resetting spring is overhead in bonnet.
Further, the valve core rod and spool cone are enough at spool, and the valve core rod uses soft magnetic materials DT4, the valve
Core cone uses high hardness material Cr12MOV；The bonnet, magnetic guiding loop and valve pocket are soft magnetic materials DT4, with the common structure of valve core rod
At electromagnetic circuit.
Further, the threaded structure of the external cylindrical surface of the tightening piece, left side carry hexagonal counter sink.
Further, gap, the valve core rod outer circle are equipped between the spring lever longer end and the endoporus of the bonnet
Gap, the valve core rod external cylindrical surface and the magnetic guiding loop inner cylinder face are equipped between cylinder and the coil rack inner cylinder face
Between be equipped with gap, between the valve core rod external cylindrical surface and the valve seat inner cylinder face be equipped with gap.
Further, the magnetic guiding loop right side and valve pocket right side be in the same plane.
Further, when the coil obtains electric, the valve core rod and spool cone that constitute spool are attracted by bonnet, until valve core rod
Left side is bonded with bonnet right side；Valve core rod and spool cone the push the spring bar of spool make in an axial direction from right toward left movement
Resetting spring compresses；At this point, spool cone the conical surface and valve seat oil discharge passage sealing disengage so that the oil inlet passage of valve seat with go out
Oily channel connection, hydraulic oil can enter from the oil inlet passage of valve seat, and be discharged from oil discharge passage.
Further, when the coil losing electricity, bonnet loses electromagnetic force, under the action of resetting spring compressing force, pushes
Spring lever moves from left to right in an axial direction, and the valve core rod and spool cone for constituting spool are transported from left to right in an axial direction by spring lever promotion
It is dynamic, until the conical surface of spool cone and the oil discharge passage of valve seat are closed and sealed；At this point, hydraulic oil can not be in miniature high-speed digital valve
Circulation, the runner of oil inlet passage to the oil discharge passage of valve seat are blocked.
The present invention beneficial outcomes be：
(1) miniature high-speed digital valve micromation simple in structure：High-speed figure valve overall dimensions are miniaturized, cost simple in structure
Small size installation requirement low, under the special operation conditions environment such as meet high temperature and pressure；
(2) miniature high-speed digital valve electromagnetic efficiency is high：Miniature high-speed digital valve uses resetting spring overhead, to increase
Electromagnetism is attracted area, makes miniature high-speed digital valve electromagnetic efficiency higher；
(3) miniature high-speed digital valve service life is long：Miniature high-speed number valve core is seperated using valve core rod and spool cone
Formula structure, valve core rod are soft magnetic materials, form electromagnetic circuit, and spool cone uses high hardness material so that spool is bored and valve seat connects
Contacting surface anti-pressure and abrasion-proof, to improve the service life of miniature high-speed digital valve.
Description of the drawings
Fig. 1 is miniature high-speed digital valve structural schematic diagram；
Fig. 2 is miniature high-speed digital valve structure sectional view；
Fig. 3 is miniature high-speed digital valve electromagnetic coil magnetic circuit schematic diagram；
In figure：1- tightening piece, the first sealing rings of 2-, 3- resetting springs, 4- spring levers, 5- bonnets, the second sealing rings of 6-, 7-
Coil rack, 8- coils, 9- valve core rods, 10- valve pockets, 11- thirds sealing ring, 12- magnetic guiding loops, the 4th sealing rings of 13-, 14-
Five sealing rings, 15- spools cone, 16- valve seats, the 6th sealing rings of 17-, 18- oil inlet passages, 19- oil discharge passages.
Specific implementation mode
The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
As shown in Figs. 1-3, a kind of miniature high-speed digital valve provided in this embodiment, including tightening piece 1, the first sealing ring 2,
Resetting spring 3, spring lever 4, bonnet 5, the second sealing ring 6, coil rack 7, coil 8, valve core rod 9, valve pocket 10, third sealing ring
11, magnetic guiding loop 12, the 4th sealing ring 13, the 5th sealing ring 14, spool cone 15, valve seat 16, the 6th sealing ring 17, oil inlet passage
18, oil discharge passage 19.
As shown in Fig. 2, the tightening piece 1 is column structure, the bonnet 5 is the column structure with endoporus, the spring
There is annular convex platform on bar 4, longer end and shorter end are divided by annular convex platform, 4 longer end of spring lever injects the endoporus of bonnet 5
In, resetting spring 3 is mounted in 4 shorter end of spring lever, and it is close to be equipped with first between 5 left side of 1 right side of tightening piece and bonnet
Seal 2, after after resetting spring 3 and spring lever 4, installation is complete, 1 right side of tightening piece uses laser welding techniques with 5 left side of bonnet
It is welded, 3 left end of resetting spring is contacted with 1 right side of tightening piece；The valve core rod 9 and spool cone 15 constitute spool, spring
4 longer end end face of bar is contacted with 9 end face of valve core rod；Coil 8 is wrapped on coil rack 7, and coil rack 7 is fixed on valve pocket 10
On, 10 left side of valve pocket is fixed using laser welding techniques with 5 step end face of bonnet, 7 left side of coil rack and 5 step end of bonnet
Second sealing ring 6 is installed between face；Magnetic guiding loop 12 is mounted on the circle that 9 external cylindrical surface of valve core rod and 10 inner cylinder face of valve pocket are constituted
In annular distance, 12 right side of magnetic guiding loop and 10 right side of valve pocket in the same plane, 7 right side of coil rack and 12 left end of magnetic guiding loop
Third sealing ring 11 is installed between face；Valve seat 16 is sleeved on valve core rod 9, and 16 left side of valve seat uses laser welding techniques and valve pocket
10 right sides, 12 right side of magnetic guiding loop are fixed, and the 4th sealing is equipped between 12 right side of 16 left side of valve seat and magnetic guiding loop
Circle 13,16 external cylindrical surface of valve seat are equipped with the 5th sealing ring 14, and 16 right side of valve seat is equipped with the 6th sealing ring 17, on valve seat 16
4 oil inlet passages 18 and 1 oil discharge passage 19 are had, spool bores 15 male cone (strobilus masculinus)s and matches shape with the oil discharge passage 19 of valve seat 16
At sealing.
Further, the threaded structure of the external cylindrical surface of the tightening piece 1, left side carry hexagonal counter sink, convenient for micro-
Type high-speed figure valve is mounted on other component.
Further, the resetting spring 3 belongs to overhead in bonnet 5, compared with spring middle, can increase
Electromagnetism is attracted area, makes miniature high-speed digital valve electromagnetic efficiency higher.
Further, gap is equipped between 4 longer end of the spring lever and the endoporus of the bonnet 5, outside the valve core rod 9
Gap is equipped between 7 inner cylinder face of cylindrical surface and the coil rack, in 9 external cylindrical surface of the valve core rod and the magnetic guiding loop 12
It is equipped with gap between cylindrical surface, gap is equipped between 16 inner cylinder face of 9 external cylindrical surface of the valve core rod and the valve seat, these
Gap ensures that spool and spring lever 4 can keep miniature high-speed digital valve response action rapid with side-to-side movement when coil 8 obtains electric.
Further, spool includes valve core rod 9 and spool cone 15, and using split structure, the spool cone 15 is column
There is the conical surface, the other end there is cylindrical boss, 9 endoporus of valve core rod and spool to bore 15 cylindrical boss interference fit for structure, one end,
Valve core rod 9 and spool are bored 15 contact surfaces and are welded using laser welding techniques, and valve core rod 9 uses soft magnetic materials DT4, convenient for constituting
Electromagnetic coil magnetic circuit, spool cone 15 is using high hardness material Cr12MOV prolongs convenient for 19 anti-pressure and abrasion-proof of oil discharge passage with valve seat 16
The service life of long miniature high-speed digital valve.
Fig. 3 is miniature high-speed digital valve electromagnetic coil magnetic circuit schematic diagram, bonnet 5, valve core rod 9, magnetic guiding loop 12 and valve pocket 10
It is soft magnetic materials DT4, with high magnetic permeability, when coil 8 must be electric, the magnetic line of force is in bonnet 5, valve core rod 9,12 and of magnetic guiding loop
It is closed between valve pocket 10 and forms magnetic loop.
When coil 8 it is electric when, valve core rod 9 and the spool cone of spool 15 are attracted by bonnet 5, until 9 left side of valve core rod with
5 right side of bonnet is bonded；The valve core rod 9 and spool of spool bore 15 push the spring bars 4 in an axial direction from right toward left movement, and make reset
Spring 3 compresses；At this point, the sealing of oil discharge passage 19 that spool bores 15 male cone (strobilus masculinus)s and valve seat 16 disengages so that the oil inlet of valve seat 16 is logical
Road 18 is connected to oil discharge passage 19, and hydraulic oil can enter from the oil inlet passage 18 of valve seat 16, and is discharged from oil discharge passage 19.
When 8 dead electricity of coil, bonnet 5 loses electromagnetic force, under the action of 3 compressing force of resetting spring, 4 edge of push the spring bar
Axial to move from left to right, valve core rod 9 and the spool cone 15 of spool is moved from left to right in an axial direction by the promotion of spring lever 4, until
The oil discharge passage 19 that spool bores 15 male cone (strobilus masculinus)s and valve seat 16 closes sealing；At this point, hydraulic oil can not be in miniature high-speed digital valve
Circulation, the runner of oil inlet passage 18 to the oil discharge passage 19 of valve seat 16 are blocked.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of miniature high-speed digital valve, it is characterised in that：Including tightening piece (1), resetting spring (3), spring lever (4), bonnet
(5), coil rack (7), coil (8), valve core rod (9), valve pocket (10), magnetic guiding loop (12), spool cone (15), valve seat (16), into
Oily channel (18) and oil discharge passage (19)；
The bonnet (5) is the column structure with endoporus, has annular convex platform on the spring lever (4), passes through annular convex platform point
For longer end and shorter end, spring lever (4) longer end injects in the endoporus of bonnet (5), and resetting spring (3) is mounted on spring lever
(4) in shorter end, tightening piece (1) right side is fixedly connected with bonnet (5) left side；
The coil (8) is wrapped on coil rack (7), and coil rack (7) is fixed on valve pocket (10), valve pocket (10) and bonnet
(5) step end face is fixed；Spring lever (4) the longer end end face is contacted with valve core rod (9) end face, and magnetic guiding loop (12) is mounted on valve
In the annulus hole that core bar (9) external cylindrical surface and valve pocket (10) inner cylinder face are constituted, valve seat (16) is sleeved on valve core rod (9), valve seat
(16) left side is fixedly connected with valve pocket (10) right side, magnetic guiding loop (12) right side；
Spool cone (15) is column structure, and one end has a conical surface, and the other end has a cylindrical boss, valve core rod (9) endoporus and
Spool bores the cylindrical boss interference fit of (15)；
Several oil inlet passages (18) and an oil discharge passage (19) are had on the valve seat (16), spool bores the conical surface of (15)
Formation sealing is matched with the oil discharge passage (19) of valve seat (16).
2. a kind of miniature high-speed digital valve according to claim 1, it is characterised in that：Tightening piece (1) right side with
The first sealing ring (2) is installed between bonnet (5) left side；Coil rack (7) left side and bonnet (5) step end face it
Between the second sealing ring (6) is installed；It is close that third is installed between coil rack (7) right side and magnetic guiding loop (12) left side
Seal (11)；The 4th sealing ring (13) is installed between valve seat (16) left side and magnetic guiding loop (12) right side；The valve
Seat (16) external cylindrical surface is equipped with the 5th sealing ring (14)；Valve seat (16) right side is equipped with the 6th sealing ring (17).
3. a kind of miniature high-speed digital valve according to claim 1, it is characterised in that：The resetting spring (3) is in bonnet
(5) it is overhead in.
4. a kind of miniature high-speed digital valve according to claim 1, it is characterised in that：The valve core rod (9) and spool cone
(15) enough at spool, the valve core rod (9) uses high hardness material Cr using soft magnetic materials DT4, the spool cone (15)12MOV；
The bonnet (5), magnetic guiding loop (12) and valve pocket (10) are soft magnetic materials DT4, and electromagnetic circuit is collectively formed with valve core rod (9).
5. a kind of miniature high-speed digital valve according to claim 1, it is characterised in that：The outside cylinder of the tightening piece (1)
The threaded structure in face, left side carry hexagonal counter sink.
6. a kind of miniature high-speed digital valve according to claim 1, it is characterised in that：Spring lever (4) longer end with
Gap, valve core rod (9) external cylindrical surface and the coil rack (7) inner cylinder face are equipped between the endoporus of the bonnet (5)
Between be equipped with gap, equipped with gap between valve core rod (9) external cylindrical surface and the magnetic guiding loop (12) inner cylinder face, the valve
Gap is equipped between core bar (9) external cylindrical surface and the valve seat (16) inner cylinder face.
7. a kind of miniature high-speed digital valve according to claim 1, it is characterised in that：Magnetic guiding loop (12) right side with
Valve pocket (10) right side is in the same plane.
8. a kind of miniature high-speed digital valve according to claim 1, it is characterised in that：When the coil (8) obtains electric, constitute
Valve core rod (9) and the spool cone (15) of spool are attracted by bonnet (5), until valve core rod (9) left side and bonnet (5) right end face paste
It closes；Valve core rod (9) and spool cone (15) push the spring bar (4) of spool make resetting spring (3) in an axial direction from right toward left movement
Compression；At this point, the conical surface of spool cone (15) and oil discharge passage (19) sealing of valve seat (16) disengage so that the oil inlet of valve seat (16)
Channel (18) is connected to oil discharge passage (19), and hydraulic oil can enter from the oil inlet passage (18) of valve seat (16), and is led to from fuel-displaced
Road (19) is discharged.
9. a kind of miniature high-speed digital valve according to claim 1, it is characterised in that：When coil (8) dead electricity, bonnet
(5) electromagnetic force is lost, under the action of resetting spring (3) compressing force, push the spring bar (4) moves from left to right in an axial direction, structure
It is moved from left to right in an axial direction by spring lever (4) promotion at valve core rod (9) and the spool cone (15) of spool, until spool bores (15)
The oil discharge passage (19) of the conical surface and valve seat (16) close and seal；At this point, hydraulic oil can not circulate in miniature high-speed digital valve,
The runner of oil inlet passage (18) to the oil discharge passage (19) of valve seat (16) is blocked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810090554.3A CN108302242A (en) | 2018-01-30 | 2018-01-30 | A kind of miniature high-speed digital valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810090554.3A CN108302242A (en) | 2018-01-30 | 2018-01-30 | A kind of miniature high-speed digital valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108302242A true CN108302242A (en) | 2018-07-20 |
Family
ID=62867164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810090554.3A Pending CN108302242A (en) | 2018-01-30 | 2018-01-30 | A kind of miniature high-speed digital valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108302242A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066439A (en) * | 2022-12-27 | 2023-05-05 | 中国矿业大学 | Valve core push rod split type miniature high-speed digital valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103757A (en) * | 1985-05-14 | 1986-12-24 | 浙江大学 | High-tension resisting proporational electromagnet with bidirectional polar |
| CN101555958A (en) * | 2008-04-09 | 2009-10-14 | 威伯科有限公司 | Switching magnetic valve |
| CN201462071U (en) * | 2009-05-05 | 2010-05-12 | 贵州红林机械有限公司 | Two-bit three-way magnetic valve for engine braking system |
| CN203131041U (en) * | 2013-02-19 | 2013-08-14 | 嘉兴诚易科技有限公司 | Buffering type flow adjusting gas electromagnetic valve |
| CN103823195A (en) * | 2013-11-26 | 2014-05-28 | 浙江大学 | Electromagnet test piece work air gap adjusting device applied to micro electromagnetic valve |
| CN207945336U (en) * | 2018-01-30 | 2018-10-09 | 浙江大学 | A kind of miniature high-speed digital valve |
-
2018
- 2018-01-30 CN CN201810090554.3A patent/CN108302242A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103757A (en) * | 1985-05-14 | 1986-12-24 | 浙江大学 | High-tension resisting proporational electromagnet with bidirectional polar |
| CN101555958A (en) * | 2008-04-09 | 2009-10-14 | 威伯科有限公司 | Switching magnetic valve |
| CN201462071U (en) * | 2009-05-05 | 2010-05-12 | 贵州红林机械有限公司 | Two-bit three-way magnetic valve for engine braking system |
| CN203131041U (en) * | 2013-02-19 | 2013-08-14 | 嘉兴诚易科技有限公司 | Buffering type flow adjusting gas electromagnetic valve |
| CN103823195A (en) * | 2013-11-26 | 2014-05-28 | 浙江大学 | Electromagnet test piece work air gap adjusting device applied to micro electromagnetic valve |
| CN207945336U (en) * | 2018-01-30 | 2018-10-09 | 浙江大学 | A kind of miniature high-speed digital valve |
Non-Patent Citations (1)
| Title |
|---|
| 夏焕彬等: "《气动调节仪表》", 30 June 1980, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066439A (en) * | 2022-12-27 | 2023-05-05 | 中国矿业大学 | Valve core push rod split type miniature high-speed digital valve |
| CN116066439B (en) * | 2022-12-27 | 2023-12-26 | 中国矿业大学 | Valve core push rod split type miniature high-speed digital valve |
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Application publication date: 20180720 |
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