CN110388474A - A kind of miniaturization guide electromagnetic valve of quick response - Google Patents
A kind of miniaturization guide electromagnetic valve of quick response Download PDFInfo
- Publication number
- CN110388474A CN110388474A CN201910807544.1A CN201910807544A CN110388474A CN 110388474 A CN110388474 A CN 110388474A CN 201910807544 A CN201910807544 A CN 201910807544A CN 110388474 A CN110388474 A CN 110388474A
- Authority
- CN
- China
- Prior art keywords
- commander
- valve
- valve body
- spool
- miniaturization
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 2
- 210000000038 chest Anatomy 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- 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
- F16K1/32—Details
-
- 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
- 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
Landscapes
- 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 miniaturization guide electromagnetic valves of quick response, belong to Solenoid Valve Technology field, including valve body, electromagnet, nut, sealing ring A, main piston, armature, auxiliary spring, main spring, sealing ring B, command valve chest and commander's valve body, commander's valve chamber is provided in commander's valve chest, commander's valve body sliding plug is intracavitary in command valve, back pressure cavity is equipped in the main piston, commander's valve chamber is connected to by inlet channel B with back pressure cavity, the interior bottom of the valve body is provided with medium runner, the medium runner is connected to by inlet channel A with commander's valve chamber, the exhaust passage for command valve intracavity gas to be discharged is additionally provided on the valve body.The present invention solve that existing electromagnetic valve structure size is bigger than normal and Pressure in Back-pressure Cavity pressure release it is relatively slow caused by main piston open slower, then make the problem that the response time of solenoid valve is relatively slow, have the characteristics that light-weight and compact-sized.
Description
Technical field
The present invention relates to Solenoid Valve Technology field more particularly to a kind of miniaturization guide electromagnetic valves of quick response.
Background technique
Solenoid valve is very widely used in the industry, is the automation foundation member that hydraulic, pneumatic field is used to control fluid
Part, for adjusting direction, flow, speed and the other parameters of medium.Uniterrupted duty, in short-term work can be divided by working system
Make system and repeatedly short time duty；Direct Action Type and pilot-operated type can be divided by working principle；It can be divided by original operating states normally opened
Formula and normally closed type.Relative to traditional common hand-operated valve, pneumatic operated valve, solenoid valve has in terms of operational paradigm, automatic control ability
Big advantage.
Currently, the guide electromagnetic valve type applied is more, the basic structure of existing solenoid valve is mostly such as specification
Shown in attached drawing 1, in figure: 1 valve body, 2 middle cover sealing rings, 3 middle covers, 4 upper covers, 5 fastening bolts, 6O type circle, 7 coils, the fastening of 8 coils
Bolt, 9 guide's valve pads, 10O type circle, 11 fastening bolts, 12 springs, 13O type circle, 14 relief tubes, 15 main springs, 16 main pistons.
Its working principle is that: when guide electromagnetic valve is powered, lift guide's valve pad by electromagnetic force, relief tube forms access, electric at this time
Magnet valve main piston back pressure cavity forms upper low high pressure difference by relief tube pressure release, on main piston surface, in the effect of pressure difference
Under, Fluid pressure pushes main piston to open up；When power-off, under the action of spring force and main valve plug gravity, guide's valve pad is multiple
Position, pressure release tube passage are closed, and main piston moves down closing.Solenoid valve Pressure in Back-pressure Cavity increases, and Fluid pressure adds to main valve plug
Pressure forms sealing.
The major defect of existing guide electromagnetic valve product mainly has: 1, structure size is bigger than normal, portioned product even with
External communicating pipe；
2, after solenoid valves, while solenoid valve back pressure cavity is vented by pressure release passage, inlet high pressure chamber is still logical
Inlet channel is crossed to back pressure cavity air inlet, therefore Pressure in Back-pressure Cavity pressure release is slower, will lead to main piston and open slower, the sound of solenoid valve
It is relatively slow between seasonable, therefore need to design a kind of miniaturization guide electromagnetic valve of quick response.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, such as: existing guide type electromagnetic valve arrangement ruler
Very little and weight is larger, and since main piston back pressure cavity continues the slower problem of response time caused by air inlet.
To achieve the goals above, present invention employs following technical solutions: a kind of miniaturization pilot-operated type of quick response
Solenoid valve, including valve body, electromagnet, nut, sealing ring A, main piston, armature, auxiliary spring, main spring, sealing ring B, command valve
Shell and commander's valve body, are provided with commander's valve chamber in commander's valve chest, commander's valve body sliding plug is being commanded
In valve chamber, back pressure cavity is equipped in the main piston, commander's valve chamber is connected to by inlet channel B with back pressure cavity, the valve body
Interior bottom be provided with medium runner, the medium runner is connected to by inlet channel A with valve chamber is commanded, and is also set on the valve body
It is equipped with the exhaust passage for command valve intracavity gas to be discharged；
Commander's valve body is made of commander's valve pocket, thimble and commander's spool, and commander's valve pocket, thimble and commander
Spool is into a single integrated structure by being threadedly engaged assembly, passes through nut screw thread phase between the electromagnet, commander's valve chest and valve body
Even.
Preferably, the thimble be inverted T-shape structure, and the end on the thimble top through commander valve pocket and with
The bottom of armature offsets.
Preferably, commander's spool is located at inlet channel A and commands the surface of valve chamber communicating position, and the commander
It is cone structure at the top of the bottom of spool and commander's valve pocket.
Preferably, commander's valve pocket bottom is recessed with fitting groove, commander's spool Screw assembly in the fitting groove,
And assembly blind hole is recessed at the top of commander's spool, the thimble Screw assembly is in the assembly blind hole.
Preferably, the internal diameter phase of the outer diameter and inlet channel A at the half height of commander's spool bottom cone
Deng.
Preferably, the armature is T-shape structure.
Compared with prior art, the beneficial effects of the present invention are:
1, the venthole of the invention by the way that multiple and different directions are arranged in valve inner, takes full advantage of the three-dimensional ruler of structure
It is very little, so that gas connection farthest reduces structure size and weight in valve inner, realize miniaturization；
2, present invention employs commander's valve pocket, thimble and the integral structure for commanding spool, exhaust pressure relief channel is realized
While connection, inlet channel is closed, so that Pressure in Back-pressure Cavity be made to reduce rapidly, main piston is opened rapidly, is substantially increased
Response speed.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing guide electromagnetic valve；
Fig. 2 is a kind of structural schematic diagram of the miniaturization guide electromagnetic valve of quick response proposed by the present invention；
Fig. 3 is that a kind of structure of commander's valve body of the miniaturization guide electromagnetic valve of quick response proposed by the present invention is shown
It is intended to.
In figure: 1 valve body, 2 electromagnet, 3 nuts, 4 sealing ring A, 5 main pistons, 6 armature, 7 commander's valve pockets, 8 thimbles, 9 commanders
Spool, 10 auxiliary springs, 11 main springs, 12 sealing ring B, 13 commander's valve chests, 14 commander's valve chambers, 15 inlet channel B, 16 air inlets are logical
Road A, 17 exhaust passages, 18 back pressure cavities.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
Referring to Fig. 2-3, a kind of miniaturization guide electromagnetic valve of quick response, including it is valve body 1, electromagnet 2, nut 3, close
Seal A4, main piston 5, armature 6, auxiliary spring 10, main spring 11, sealing ring B12, commander's valve chest 13 and commander's valve body, refer to
It waves and is provided with commander's valve chamber 14 in valve chest 13, commander's valve body sliding plug is equipped with back in commander's valve chamber 14 in main piston 5
Chamber 18 is pressed, commander's valve chamber 14 is connected to by inlet channel B15 with back pressure cavity 18, and the interior bottom of valve body 1 is provided with medium runner, is situated between
Mass flow road is connected to by inlet channel A16 with commander's valve chamber 14, is additionally provided on valve body 1 for gas in valve chamber 14 will to be commanded to arrange
Exhaust passage 17 out；
Commander's valve body is made of commander's valve pocket 7, thimble 8 and commander's spool 9, and commands valve pocket 7, thimble 8 and command valve
Core 9 is into a single integrated structure by being threadedly engaged assembly, passes through 3 screw thread phase of nut between electromagnet 2, commander's valve chest 13 and valve body 1
Even.
It should be noted that when commander's spool 9 is opened inlet channel B16 can be blocked, under keeping 18 pressure of back pressure cavity quick
Drop, when solenoid valve is not powered on, commander's valve body withstands on commander 13 upper end of valve chest under the action of auxiliary spring 10, realizes sealing,
Inlet pressure reaches commander's valve chamber 14 by inlet channel A16, and then reaches back pressure cavity 18 by inlet channel B15；Solenoid valve
When energization, under electromagnetic attraction effect, armature 6 is moved downward, and is pushed thimble 8 that commander's valve body is driven to move downward, is blocked
Inlet channel A16, entrance medium can not enter back into commander's valve chamber 14, while the gas of valve chamber 14 being commanded to pass through 17 row of exhaust passage
Out into ambient atmosphere, since commander's valve chamber 14 is connected to back pressure cavity 18 by inlet channel B15, the gas of back pressure cavity 18
Also it is quickly discharged into atmosphere, 18 pressure of back pressure cavity reduces rapidly, and main piston 5 overcomes main bullet under the action of entrance pressure medium
The elastic force of spring 11 is opened rapidly.After solenoid valve power-off, 6 return of armature, commander's valve body is transported upwards under the action of auxiliary spring 10
It is dynamic, blocked exhaust passage 17, while inlet channel A16 is opened, inlet pressure quickly enters commander's valve chamber 14, so by into
Gas channel B15 enters back pressure cavity, and rapid return under the action of main spring 11 of main piston 5 is closed, and realizes the fast of solenoid valve with this
Speed response；
Wherein, thimble 8 be inverted T-shape structure, and the end on 8 top of thimble through commander valve pocket 7 and with armature 6
Bottom offsets；
It should be noted that 8 top of thimble offsets with armature 6, after solenoid valves, 2 magnetic force of electromagnet controls armature 6
Decline, to realize the promotion to thimble 8 or even entire commander's valve body；
Wherein, commander's spool 9 is located at inlet channel A16 and commands the surface of 14 communicating position of valve chamber, and commands spool 9
Bottom and command valve pocket 7 top be cone structure；
It should be noted that after commanding valve body to be snapped down in commander 9 bottom of spool insertion inlet channel A16, air inlet
Channel A16 is connected to commander's disconnection of valve chamber 14, so that entrance medium be made to cannot be introduced into commander's valve chamber 14；
Wherein, commander 7 bottom of valve pocket is recessed with fitting groove, commands 9 Screw assembly of spool in the fitting groove, and command valve
The top of core 9 is recessed with assembly blind hole, and 8 Screw assembly of thimble is in the assembly blind hole；
It should be noted that realizing commander's valve pocket 7, thimble 8 and the Screw assembly for commanding spool 9 with this, have structure steady
Fixed feature；
Wherein, command the outer diameter at the half height of 9 bottom cone of spool equal with the internal diameter of inlet channel A16；
It should be noted that may be implemented to make when commander's spool 9 is snapped down in its bottom cone insertion inlet channel A16
Inlet channel A16 and commander's valve chamber 14 disconnect connected state；
Wherein, armature 6 is T-shape structure；
It should be noted that cooperating for realizing with the transmission of thimble 8, has the characteristics that compact-sized and stable transmission.
In the present invention, when user uses the device, when solenoid valve is not powered on, effect of commander's valve body in auxiliary spring 10
Under withstand on commander 13 upper end of valve chest, realize sealing, inlet pressure by inlet channel A16 reach commander valve chamber 14, Jin Ertong
It crosses inlet channel B15 and reaches back pressure cavity 18；When solenoid valves, under electromagnetic attraction effect, armature 6 is moved downward, and pushes top
Needle 8 drives commander's valve body to move downward, and has blocked inlet channel A16, and entrance medium can not enter back into commander's valve chamber 14, simultaneously
The gas of commander's valve chamber 14 is discharged in ambient atmosphere by exhaust passage 17, due to commander's valve chamber 14 and back pressure cavity 18 by into
Gas channel B15 connection, therefore the gas of back pressure cavity 18 is also quickly discharged into atmosphere, 18 pressure of back pressure cavity reduces rapidly, main work
Plug 5 overcomes the elastic force of main spring 11 to open rapidly under the action of entrance pressure medium.After solenoid valve power-off, 6 return of armature refers to
It waves valve body to move upwards under the action of auxiliary spring 10, has blocked exhaust passage 17, while inlet channel A16 is opened, entrance
Pressure quickly enters commander's valve chamber 14, and then enters back pressure cavity, effect of the main piston 5 in main spring 11 by inlet channel B15
Rapid return is closed down, electromagnetic valve structure of the invention with respect to common product can effectively reduce structure size and weight about 10%~
20%, and improve response speed 20%~30%.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of miniaturization guide electromagnetic valve of quick response, including valve body (1), electromagnet (2), nut (3), sealing ring A
(4), main piston (5), armature (6), auxiliary spring (10), main spring (11), sealing ring B (12), commander valve chest (13) and commander
Valve body, which is characterized in that commander valve chamber (14) is provided in commander's valve chest (13), commander's valve body sliding is inserted
It connects in commander valve chamber (14), is equipped with back pressure cavity (18) in the main piston (5), commander's valve chamber (14) passes through inlet channel
B (15) is connected to back pressure cavity (18), and the interior bottom of the valve body (1) is provided with medium runner, and the medium runner passes through air inlet
Channel A (16) is connected to commander valve chamber (14), is additionally provided on the valve body (1) for that will command the interior gas discharge of valve chamber (14)
Exhaust passage (17)；
Commander's valve body is made of commander's valve pocket (7), thimble (8) and commander spool (9), and commander's valve pocket (7), top
Needle (8) and commander spool (9) are into a single integrated structure by being threadedly engaged assembly, the electromagnet (2), commander valve chest (13) and valve
It is connected between body (1) by nut (3) screw thread.
2. a kind of miniaturization guide electromagnetic valve of quick response according to claim 1, which is characterized in that the thimble
It (8) is inverted T-shape structure, and the end on the thimble (8) top is through commander valve pocket (7) and the bottom with armature (6)
It offsets.
3. a kind of miniaturization guide electromagnetic valve of quick response according to claim 1, which is characterized in that the commander
Spool (9) is located at inlet channel A (16) and commands the surface of valve chamber (14) communicating position, and the bottom of commander spool (9)
Portion is cone structure, and the top of commander valve pocket (7) is round estrade structure.
4. a kind of miniaturization guide electromagnetic valve of quick response according to claim 1, which is characterized in that the commander
Valve pocket (7) bottom is recessed with fitting groove, and commander's spool (9) Screw assembly is in the fitting groove, and commander's spool (9)
Top be recessed with assembly blind hole, thimble (8) Screw assembly is in the assembly blind hole.
5. a kind of miniaturization guide electromagnetic valve of quick response according to claim 3, which is characterized in that the commander
Outer diameter at the half height of spool (9) bottom cone is equal with the internal diameter of inlet channel A (16).
6. a kind of miniaturization guide electromagnetic valve of quick response according to claim 1, which is characterized in that the armature
It (6) is T-shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910807544.1A CN110388474A (en) | 2019-08-29 | 2019-08-29 | A kind of miniaturization guide electromagnetic valve of quick response |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910807544.1A CN110388474A (en) | 2019-08-29 | 2019-08-29 | A kind of miniaturization guide electromagnetic valve of quick response |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110388474A true CN110388474A (en) | 2019-10-29 |
Family
ID=68289489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910807544.1A Pending CN110388474A (en) | 2019-08-29 | 2019-08-29 | A kind of miniaturization guide electromagnetic valve of quick response |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110388474A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404620A (en) * | 2021-06-30 | 2021-09-17 | 北京星际荣耀科技有限责任公司 | Pilot-operated control valve |
| CN114215948A (en) * | 2021-11-23 | 2022-03-22 | 北京航天动力研究所 | High-pressure helium bottle inflation electromagnetic valve of rocket engine |
| CN116045047A (en) * | 2023-03-31 | 2023-05-02 | 江苏深蓝航天有限公司 | Safety valve and rocket storage tank |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03168485A (en) * | 1989-11-27 | 1991-07-22 | Matsushita Electric Works Ltd | Solenoid valve and solenoid valve connection structure |
| JPH10318425A (en) * | 1997-05-21 | 1998-12-04 | Nichiden Kogyo Kk | Pilot type solenoid valve |
| JP2002039429A (en) * | 2000-07-19 | 2002-02-06 | Tgk Co Ltd | Two-stage pilot solenoid valve |
| JP2007092826A (en) * | 2005-09-28 | 2007-04-12 | Fuji Koki Corp | Pilot type solenoid valve |
| CN201963999U (en) * | 2011-03-18 | 2011-09-07 | 重庆环茂电磁阀有限公司 | Double-layered pilot-operated type hard and soft tapered seal electromagnetic valve |
-
2019
- 2019-08-29 CN CN201910807544.1A patent/CN110388474A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03168485A (en) * | 1989-11-27 | 1991-07-22 | Matsushita Electric Works Ltd | Solenoid valve and solenoid valve connection structure |
| JPH10318425A (en) * | 1997-05-21 | 1998-12-04 | Nichiden Kogyo Kk | Pilot type solenoid valve |
| JP2002039429A (en) * | 2000-07-19 | 2002-02-06 | Tgk Co Ltd | Two-stage pilot solenoid valve |
| JP2007092826A (en) * | 2005-09-28 | 2007-04-12 | Fuji Koki Corp | Pilot type solenoid valve |
| CN201963999U (en) * | 2011-03-18 | 2011-09-07 | 重庆环茂电磁阀有限公司 | Double-layered pilot-operated type hard and soft tapered seal electromagnetic valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404620A (en) * | 2021-06-30 | 2021-09-17 | 北京星际荣耀科技有限责任公司 | Pilot-operated control valve |
| CN113404620B (en) * | 2021-06-30 | 2024-02-20 | 北京星际荣耀科技有限责任公司 | Pilot-operated control valve |
| CN114215948A (en) * | 2021-11-23 | 2022-03-22 | 北京航天动力研究所 | High-pressure helium bottle inflation electromagnetic valve of rocket engine |
| CN116045047A (en) * | 2023-03-31 | 2023-05-02 | 江苏深蓝航天有限公司 | Safety valve and rocket storage tank |
| CN116045047B (en) * | 2023-03-31 | 2023-07-21 | 江苏深蓝航天有限公司 | Safety valve and rocket storage tank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110388474A (en) | A kind of miniaturization guide electromagnetic valve of quick response | |
| CN102330834B (en) | Electromagnetic valve | |
| KR101236593B1 (en) | Fluid-working machine | |
| CN104315226A (en) | Solenoid valve for fluid control | |
| CN211259779U (en) | Piston type pressure reducing valve with direct flow channel | |
| CN109538562B (en) | Pilot valve sleeve control type switch valve | |
| CN108266563A (en) | Guide electromagnetic valve | |
| CN205244408U (en) | Gas accuse guide formula solenoid valve | |
| CN207554925U (en) | A kind of double control solenoid valve and the vehicle using the solenoid valve | |
| CN215109810U (en) | Valve cylinder mechanism | |
| CN107740735B (en) | A kind of electro-hydraulic linkage gas valve | |
| CN107143436B (en) | Combined double-electromagnetic fuel gas injection valve | |
| CN205478035U (en) | High pressure fuel solenoid valve | |
| CN208935521U (en) | A kind of slow-start solenoid valve | |
| CN212868685U (en) | Exhaust valve control mechanism and exhaust valve | |
| CN208442326U (en) | Four double three-way magnetic valves | |
| CN203641586U (en) | Experiment electromagnetic valve | |
| CN209413957U (en) | A kind of engine compresses release braking valve control system | |
| CN208397412U (en) | A kind of external pilot formula reversal valve | |
| CN207921445U (en) | High-speed electromagnetic valve | |
| CN212455695U (en) | Miniature air valve | |
| CN109373038A (en) | A kind of solenoid directional control valve | |
| CN117108577B (en) | Self-driven circulating type pneumatic reversing valve | |
| CN203051839U (en) | Electromagnetic valve | |
| CN207599098U (en) | A kind of extra long life piston explosion-proof solenoid valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191029 |