CN105114642B - A kind of ultralow temperature electromagnetic valve and its application - Google Patents
A kind of ultralow temperature electromagnetic valve and its application Download PDFInfo
- Publication number
- CN105114642B CN105114642B CN201510474277.2A CN201510474277A CN105114642B CN 105114642 B CN105114642 B CN 105114642B CN 201510474277 A CN201510474277 A CN 201510474277A CN 105114642 B CN105114642 B CN 105114642B
- Authority
- CN
- China
- Prior art keywords
- valve
- ultralow temperature
- spool
- groove
- passage
- 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.)
- Active
Links
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
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated 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
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
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 ultralow temperature electromagnetic valves, comprising: it is in the valve body of cylinder, is separately provided for the inlet and outlet that ultralow temperature medium flows into and out on barrel；Spool, it is co-axially located in body cavity and forms cylindrical surface clearance fit therewith, it is arranged with the spring abutted with valve end thereon, spool opens up fluted in the peripheral surface for being located at body cavity, first passage, second channel are offered on valve body barrel, and the auxiliary valve core component of controllable two channels shutdown or conducting is provided between two channels；Shutdown or conducting by the auxiliary valve core component to two channels can control spool to abut or be detached from valve port and realize cutting or conducting ultralow temperature medium.The configuration of the present invention is simple, assembly are quick, easy to maintain, and more than one piece product electromagnet assembly can be used interchangeably at any time, can be widely applied to the industries such as solenoid valve, electronic control, the solenoid valve particularly suitable for the ultralow temperature medium such as LNG, liquid nitrogen.
Description
Technical field
The invention belongs to Solenoid Valve Technology fields, especially suitable more particularly, to a kind of ultralow temperature electromagnetic valve and its application
It shares in the control of the ultralow temperature medium such as LNG, liquid nitrogen.
Background technique
Ultralow temperature electromagnetic valve is a kind of solenoid valve used under ultra-low temperature surroundings, is widely used in various ultra-low temperature surroundings
Under the control of ultralow temperature medium such as LNG, liquid nitrogen.
Patent document CN204312734U discloses a kind of ultralow temperature electromagnetic valve comprising valve head and electromagnetic coil assembly,
Valve head includes valve body, valve deck, and feeding-passage, tapping channel are provided on valve body and is set to feeding-passage, tapping channel
Between valve chamber, lifting driving is provided with valve rod in electromagnetic coil, and the valve rod is extension valve rod, the outer end of the extension valve rod
It is arranged with valve rod and lengthens neck set, the lower end of the extension valve rod is extend into valve chamber, and the plunger valve in-core is provided with company
The pilot hole of logical piston valve core upper and lower end faces, the lower end of the extension valve rod are provided with cone seal head, and the taper is close
It seals and is adapted at end socket and the upper opening of pilot hole, while the extension valve rod is linked with the downward ejection of piston valve core, institute
The valve rod stated lengthens neck set and the side set of electromagnetic coil assembly is provided with water proof disk.
It is very high to the seal request in solenoid valve due to the use environment of ultralow temperature, especially between valve body and spool
It seals, using conventional sealing between valve body and spool in above-mentioned technical proposal, so that its sealing effect is poor, moreover, the party
In order to reinforce sealing effect in case, it is provided with multiple groups air locking, on the one hand makes that entire valve volume is larger, structure is complicated,
On the other hand the use of multiple seal members causes its complicated assembly, sealing reliability and stability to substantially reduce.
Summary of the invention
For the above-mentioned problems in the prior art, the purpose of the present invention is to provide a kind of ultralow temperature electromagnetic valve,
Made by the use of the valve body structure of optimization and two groups of spools so as to effectively reduce the sealing position of critical component
It obtains sealing reliability to greatly improve, and structure is simple, compact.
To achieve the above object, according to one aspect of the present invention, a kind of ultralow temperature electromagnetic valve is provided, for realizing to super
The flow quantity control of cryogenic media, the solenoid valve include:
Valve body is in tube structure, be separately provided on barrel import that ultralow temperature medium flows into and out and
Outlet；
Spool, be co-axially located in the body cavity and therewith formed cylindrical surface clearance fit, be arranged with thereon with
The spring that valve end abuts, Jie's mass change in valve chamber and the different pressures that generate may make the spring spool can be driven to make
It abuts or is detached from valve port and realizes cutting or conducting ultralow temperature medium；It is characterized in that,
The spool opens up fluted in the peripheral surface for being located at body cavity, may make from spool and valve body gap
The flow for flowing into valve chamber increases；
It is logical that first communicated with the valve chamber for being used for the inflow of ultralow temperature medium in the valve body is offered on the valve body barrel
Road and the second channel communicated with the outlet, and be provided with controllable two between the first passage and second channel and lead to
The auxiliary valve core component of road shutdown or conducting；
Shutdown or conducting by the auxiliary valve core component to two channels, realize to the control of rate-of flow in the valve chamber and
So that valve cavity pressure changes, so as to drive the spool to abut or be detached from valve port, cutting or conducting ultralow temperature are realized
Medium.
As an improvement of the present invention, be provided with interconnecting piece on the valve body barrel, the interconnecting piece be internally provided with it is described
The inner hole that second channel is connected and can be connected with the first passage, the auxiliary valve core component are accommodated in the inner hole, are wrapped
Auxiliary valve core and the sealing block that auxiliary valve core end is set are included, the sealing is driven by axial movement of the auxiliary valve core in inner hole
Block blocks or opens first passage, so that first passage and second channel be made to turn off or be connected.
As an improvement of the present invention, one end that the auxiliary valve core is contacted with first passage is in multi-diameter shaft, thus in inner hole
Cavity is formed, wherein the sealing block is disposed therein on the end face of the lesser part of the diameter of axle, and for can with first passage mouth
It hermetically contacts, larger diameter portion and inner hole wall surface cooperate, and the second channel is communicated with the cavity.
As an improvement of the present invention, it is provided with elastic seal ring on the step surface of the multi-diameter shaft, passes through circlip
It is fixed with gasket.
As an improvement of the present invention, the interconnecting piece end is provided with connecting flange, is used to fix with electromagnet assembly
Connection, the auxiliary valve core are connect with the electromagnet assembly, and the auxiliary valve core can be driven to connect under electromagnet assembly effect
Axially reciprocating in portion's inner hole realizes conducting and closing to first passage.
As an improvement of the present invention, multiple heat insulating mattress are provided between the electromagnet assembly and auxiliary valve core to be thermally shielded.
As an improvement of the present invention, the groove on the spool is a plurality of, is preferably opened in spool peripheral surface along axial direction
If.
It is another aspect of this invention to provide that providing a kind of above-mentioned ultralow temperature electromagnetic valve in the control of ultralow temperature flow of media
Using.
It is another aspect of this invention to provide that providing a kind of ultralow temperature flow of media control with above-mentioned ultralow temperature electromagnetic valve
Device.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, have below beneficial to effect
Fruit:
(1) spool can abandon the sealing element between core assembly and valve body, make original using this special construction of groove is opened up
The position that this needs seals becomes circulation passage, reduces sealing position, reduces sealing difficulty；
(2) start two independent runners on body wall, and filled by setting solenoid valve in body wall, two stream of control
The on-off in road, to play leading role because realizing that the opening and closing to spool controls；
(3) present invention in solenoid valve it is small in size, light-weight, structure is simple, it is possible to reduce the sealing position of critical component,
Sealing difficulty is reduced, the stability and reliability of sealing is improved, is particularly suitable for the control of the ultralow temperature medium such as LNG, liquid nitrogen.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of ultralow temperature electromagnetic valve provided in an embodiment of the present invention；
Fig. 2 is the auxiliary valve core component diagram in solenoid valve shown in Fig. 1；
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, in which: valve body 1, spool group
Part 2, big spring 3, gasket 4, valve deck 5, auxiliary valve core component 6, small heat insulating mattress 7, big heat insulating mattress 8, electromagnet assembly 9, import method
Blue disk 11, outlet(discharge) flange disk 12, ring flange 13, vertical holes 14, inclined hole 15, the square hole 21, sealing block for connecting electromagnet assembly 9
61, circlip 62, gasket 63, elastic seal ring 64, auxiliary valve core 65.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below that
Not constituting conflict between this can be combined with each other.
Fig. 1 shows the structure of ultralow temperature electromagnetic valve provided in an embodiment of the present invention, for ease of description, illustrate only with
The relevant part of the embodiment of the present invention, details are as follows:
Referring to Fig. 1, ultralow temperature electromagnetic valve provided in an embodiment of the present invention includes valve body 1, core assembly 2, big spring 3, close
Packing 4, valve deck 5, auxiliary valve core component 6, small heat insulating mattress 7, big heat insulating mattress 8, electromagnet assembly 9.
Referring to Fig. 1, suction flange disk 11, outlet(discharge) flange disk 12, the method for connecting electromagnet assembly 9 are provided on valve body 1
Blue disk 13, vertical holes 14 and inclined hole 15.Core assembly 2 and valve body 1 are cylindrical surface clearance fit, are provided with dress on core assembly 2
The square hole 21 in hole and flow of media with spring.Medium is come in from suction flange disk 11, is flowed from 2 upper aperture 21 of core assembly
Enter in the cavity that valve body 1, core assembly 2 and valve deck 5 form, when vertical holes 14 and inclined hole 15 are truncated, pressure medium makes in cavity
Core assembly 2 closes sealing, and when vertical holes 14 is connected to inclined hole 15, chamber in-vivo medium is rapid by vertical holes 14 and inclined hole 15
It is flowed out from outlet(discharge) flange disk 12, pressure medium declines rapidly close to zero in cavity, and the lower end pressure of core assembly 2 overcomes spring 4
Elastic force opens core assembly 2.
Since valve body 1 and core assembly 2 are clearance fit, and 2 two sides of core assembly are provided with square hole 21, are flow of media
Channel, therefore sealing ring can not be used herein, this reduces sealing difficulties, while without sealing element, so that core assembly 2
Reduce with 1 frictional force of valve body, be more advantageous to the opening and closing of core assembly 2,2 response time of core assembly reduces.
Valve deck 5 compresses gasket 4 and is assemblied in the upper end of valve body 1 to be sealed to valve body upper end.
Referring to Fig. 1, the interconnecting piece with inner hole is opened up on another side wall of the opposite import of valve body 1, the interconnecting piece outer end
It is provided with ring flange 13, for connecting electromagnet assembly 9.
Auxiliary valve core component 6 is assemblied in the inner hole of the interconnecting piece, and is cooperatively connected in turn with electromagnet assembly 9.
Referring to fig. 2, auxiliary valve core component 6 is by sealing block 61, circlip 62, gasket 63, elastic seal ring 64 and one end band
Externally threaded auxiliary valve core 65 forms, and the upper sealing block 61 of auxiliary valve core component 6 is used to being truncated and opening vertical holes 14 and inclined hole 15
Connection, circlip 62 and gasket 63 have extraordinary ultralow temperature close for fixing elastic seal ring 64, elastic seal ring 64
Sealing property, therefore low temperature leak problem can be effectively controlled, 65 external screw thread of auxiliary valve core is connect with electromagnet assembly 9, centre assembly
There is small heat insulating mattress 7, play heat-blocking action, slows down ultra low temperature and transmitted by auxiliary valve core component 6 to electromagnet assembly 9.
It referring to Fig. 1, is connected on electromagnet assembly 9 and valve body 1 for connecting the ring flange 13 of electromagnet assembly 9, centre dress
Equipped with big heat insulating mattress 8, heat-blocking action is played, slows down ultra low temperature and is transmitted by valve body 1 to electromagnet assembly 9, practical application mistake
Cheng Faxian heat insulation is preferable, and electromagnet assembly temperature is can be in working range, it can be ensured that the normal use of electromagnet assembly.
Ultralow temperature electromagnetic valve of the present invention, small in volume, special structural shape can abandon core assembly and valve
Sealing element between body makes that the position sealed is needed to become circulation passage originally, reduces sealing position, reduces sealing difficulty, have
Practical engineering application advantage, the solenoid valve particularly suitable for the ultralow temperature medium such as LNG, liquid nitrogen.
The installation process of ultralow temperature electromagnetic valve of the invention is as follows:
(1) it checks, clean all parts；
(2) core assembly 2 is packed into the inner hole of valve body 1, big spring is packed into the inner hole of core assembly 2, gasket 4 is put
It sets in the upper surface of valve body 1, valve deck 5 is placed on the upper surface of gasket 4, fastened valve deck 5 and valve body 1 with six screws；
(3) auxiliary valve core component 6 is packed into the inner hole for being used to connect the ring flange 13 of electromagnet assembly 9 on valve body 1, it will be small
Heat-insulated 7 pad is packed on the external screw thread for the auxiliary valve core 65 that auxiliary valve core component 6 connects electromagnet assembly 9；Big heat insulating mattress 8 is placed on valve
For connecting the ring flange 13 of electromagnet assembly 9 on body 1；
(4) electromagnet assembly 9 is screwed on the external screw thread of auxiliary valve core component 6, while fastens electromagnet group with six screws
Part 9 and valve body 1, assembly finishes.
In the present invention, there are two the ring flange for being used to connect exterior line with annular groove, preferred levels directions for valve body setting
For import, vertical direction is outlet；It is excellent that one of runner is provided with from valve body top to valve body lower portion without annular groove ring flange side
It is selected as vertical holes, is communicated with the ring flange inner hole, it is preferably inclined hole that ring flange inner hole, which is provided with one of runner, is gone out with valve body lower end
Mouth communicates, and auxiliary valve core component is packed into the on-off of ring flange inner hole control vertical holes and inclined hole, plays leading role.
In the present invention, the core assembly two sides are provided with a plurality of groove, preferably two square holes, preferably axially set
It sets, core assembly and valve body are clearance fit, and ultralow temperature medium enters valve inner from import, and square hole to flow into valve from gap
The flow of core assembly and valve body epicoele increases, therefore core assembly and valve body do not need sealing element；
In the present invention, a deep hole is arranged in core assembly axis direction, for installing big spring；
In the present invention, one end axis direction of the auxiliary valve core component is equipped with sealing block, and circumferencial direction assembly is flexible
Sealing ring；The other end is provided with external screw thread, is connect by small heat insulating mattress with electromagnet assembly；
In the present invention, electromagnet assembly is preferably conventional electromagnets, including armature, shell, coil, spring etc., electromagnet
Component is connect with valve body by big heat insulating mattress heat-insulated.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of ultralow temperature electromagnetic valve, for realizing the flow quantity control to ultralow temperature medium, which includes:
Valve body is in tube structure, be separately provided for that ultralow temperature medium flows into and out on the barrel of the valve body into
Mouth and outlet；
Spool is co-axially located in the body cavity and forms cylindrical surface clearance fit therewith, and surrounds with the valve body
Valve chamber；The valve core upper sleeve is equipped with the spring abutted with the valve end, and the amount of ultralow temperature medium changes and produces in valve chamber
Raw different pressures may make the spring can drive the spool make the spool abut or be detached from the outlet realize cut off or
Ultralow temperature medium is connected；It is characterized in that,
The spool offers the first groove and the second groove in the peripheral surface for being located at the body cavity, and described first is recessed
Slot and second groove are square hole；First groove is connected to the import and the valve chamber, and first groove may make
The flow for flowing into valve chamber from spool and valve body gap increases；
It is logical that first communicated with the valve chamber for being used for the inflow of ultralow temperature medium in the valve body is offered on the valve body barrel
Road and the second channel that communicates is exported with described, and is provided between the first passage and the second channel controllable
The auxiliary valve core component of the first passage and second channel shutdown or conducting；
Shutdown or conducting by the auxiliary valve core component to the first passage and the second channel are realized to the valve chamber
The control of interior ultralow temperature rate-of flow and the valve cavity pressure is changed, so as to drive the spool to abut or de-
From the outlet, cutting or conducting ultralow temperature medium are realized；
The inner wall of the valve body is recessed inwardly to form third groove, and the third groove and the outlet are when the spool is opened
Connection is blocked in spool closure by the spool；Second groove is connected to the third groove and the inner cavity, makes
It obtains and increases under the spool opening state from the flow that the valve chamber flow to the outlet.
2. a kind of ultralow temperature electromagnetic valve according to claim 1, wherein it is provided with interconnecting piece on the valve body barrel, it should
Interconnecting piece is internally provided with the inner hole that is connected with the second channel and can be connected with the first passage, the auxiliary valve core component
It is accommodated in the inner hole comprising auxiliary valve core and the sealing block that auxiliary valve core end is set, through the auxiliary valve core in inner hole
Axial movement drive the sealing block to block or open first passage, so that first passage and second channel be made to turn off or lead
It is logical.
3. a kind of ultralow temperature electromagnetic valve according to claim 2, wherein one end that the auxiliary valve core is contacted with first passage
In multi-diameter shaft, so that cavity is formed in inner hole, wherein the sealing block is disposed therein on the end face of the lesser part of the diameter of axle,
With for sealably contacting with first passage mouth, larger diameter portion and inner hole wall surface cooperate, the second channel and the sky
Chamber communicates.
4. a kind of ultralow temperature electromagnetic valve according to claim 3, wherein be arranged on the step surface of the multi-diameter shaft flexible
Sealing ring is fixed by circlip and gasket.
5. a kind of ultralow temperature electromagnetic valve according to any one of claim 2-4, wherein the interconnecting piece end is provided with
Connecting flange is used to be fixedly connected with electromagnet assembly, and the auxiliary valve core is connect with the electromagnet assembly, and can be in electromagnet
Component effect is lower to drive auxiliary valve core axially reciprocating in interconnecting piece inner hole, realizes conducting and envelope to first passage
It closes.
6. a kind of ultralow temperature electromagnetic valve according to claim 5, wherein be arranged between the electromagnet assembly and auxiliary valve core
There are multiple heat insulating mattress to be thermally shielded.
7. a kind of ultralow temperature electromagnetic valve according to claim 5, wherein the first groove, the second groove on the spool
It is opened up in spool peripheral surface along axial direction.
8. a kind of ultralow temperature electromagnetic valve described in any one of -4 according to claim 1, wherein first on the spool is recessed
Slot, the second groove are opened up in spool peripheral surface along axial direction.
9. a kind of application of ultralow temperature electromagnetic valve of any of claims 1-8 in the control of ultralow temperature flow of media.
10. a kind of ultralow temperature flow of media control device with ultralow temperature electromagnetic valve of any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510474277.2A CN105114642B (en) | 2015-08-05 | 2015-08-05 | A kind of ultralow temperature electromagnetic valve and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510474277.2A CN105114642B (en) | 2015-08-05 | 2015-08-05 | A kind of ultralow temperature electromagnetic valve and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105114642A CN105114642A (en) | 2015-12-02 |
| CN105114642B true CN105114642B (en) | 2019-05-14 |
Family
ID=54662696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510474277.2A Active CN105114642B (en) | 2015-08-05 | 2015-08-05 | A kind of ultralow temperature electromagnetic valve and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105114642B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339535A (en) * | 2017-08-23 | 2017-11-10 | 深圳市盛泽森科技有限公司 | A kind of liquid level sensor of integrated magnet valves |
| CN108999983A (en) * | 2018-08-03 | 2018-12-14 | 海杰亚（北京）医疗器械有限公司 | A kind of flow control valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201792U (en) * | 1985-04-29 | 1986-08-27 | 浙江瑞安永久机电研究所 | Multifunction electromagnetic valve |
| US4848397A (en) * | 1988-06-20 | 1989-07-18 | Keystone International, Inc. | High temperature safety relief system |
| CN2191323Y (en) * | 1994-05-21 | 1995-03-08 | 王玉兰 | Electromagnetic valve for fire control |
| CN2408335Y (en) * | 1999-12-29 | 2000-11-29 | 北京市建筑五金科研实验厂 | Sealing device for valve rod |
| CN204141016U (en) * | 2014-10-20 | 2015-02-04 | 无锡市华科力士水液压有限公司 | With the pressure pressure guiding type water electromagnetic switch valve that guide filters |
-
2015
- 2015-08-05 CN CN201510474277.2A patent/CN105114642B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105114642A (en) | 2015-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9222593B1 (en) | Solenoid actuated pilot valve for irrigation system valve | |
| US3329165A (en) | Solenoid-operated multiway valves | |
| US7503346B1 (en) | Solenoid actuated pilot valve for irrigation system valve | |
| US3326511A (en) | Magnetic valve with diaphragm sealed armature cylinder | |
| WO2017024795A1 (en) | Electronic expansion valve | |
| CN106090398B (en) | Direct-acting high-pressure electromagnetic valve with large drift diameter | |
| CN105114642B (en) | A kind of ultralow temperature electromagnetic valve and its application | |
| JP3861206B2 (en) | Fluid controller | |
| WO2013000389A1 (en) | Flow-adjusting valve | |
| US20110042598A1 (en) | Solenoid-actuated diaphragm valve | |
| CN110454300A (en) | Valve mechanism and liquid engine for liquid-propellant rocket engine | |
| US2642261A (en) | Vent valve | |
| CN103821981A (en) | Self-operated internal pressure collecting type adjusting valve | |
| WO2017133428A1 (en) | Combined control valve | |
| US2327542A (en) | Refrigerant control valve | |
| CN101187428B (en) | Intelligent sleeve type high temperature high voltage solenoid valve | |
| CN109751426B (en) | Dynamic flow balance valve | |
| CN105466088B (en) | Heating power expansion valve and heat pump system with the heating power expansion valve | |
| WO2020077949A1 (en) | Valve plug, high-pressure pump structure, and valve plug sealing method | |
| US7334770B2 (en) | Solenoid isolation valve | |
| US2761470A (en) | Pilot controlled valves | |
| CN109812587B (en) | Throttle valve with overflow function | |
| CN209511190U (en) | Solenoid valve | |
| CN107420591B (en) | High-temperature one-way valve | |
| CN102305499B (en) | Novel air distributing device for cryo refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |