CN106641398A - Large-caliber pilot unloading type electromagnetic valve - Google Patents
Large-caliber pilot unloading type electromagnetic valve Download PDFInfo
- Publication number
- CN106641398A CN106641398A CN201611251613.8A CN201611251613A CN106641398A CN 106641398 A CN106641398 A CN 106641398A CN 201611251613 A CN201611251613 A CN 201611251613A CN 106641398 A CN106641398 A CN 106641398A
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- China
- Prior art keywords
- valve
- guide
- valve core
- core
- armature
- 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.)
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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
Abstract
The invention relates to a large-caliber pilot unloading type electromagnetic valve which comprises a valve body, a valve cover, a valve core component and an electromagnetic valve drive control component; the valve core component comprises a main valve core and a pilot valve core; the main valve core is positioned at a valve base; the upper part of the main valve core is of a cylindrical structure, and a pressure relief hole is formed in the bottom of the cylindrical structure; a throttle hole and a communicating hole are also formed in the main valve core; the throttle hole is formed in the medium inlet side of the valve body; one end of the communicating hole is communicated with an upper cavity of the main valve core, and the other end is communicated with the pressure relief hole; the pilot valve core is arranged in the cylindrical structure of the main valve core in a nesting manner, and a guide ring is mounted between the main valve core and the pilot valve core; when the pilot valve core moves, the main valve core is driven by the guide ring to move. The electromagnetic valve further comprises a diaphragm; the inner edge part of the diaphragm is fixedly connected with the main valve core, and the outer edge part of the diaphragm is fixedly connected with the valve body; the caliber of the solenoid valve is greater than or equal to 50 mm, the caliber of the valve seat is greater than or equal to 80 mm, and the upward/downward movement stroke of an armature is greater than or equal to 6 mm. The large-caliber pilot unloading type electromagnetic valve provided by the invention is suitable for working conditions under which the drift diameter is large and the flow resistance is small, and is small in size and light in weight.
Description
Technical field
The present invention relates to a kind of magnetic valve, more particularly to a kind of heavy caliber guide discharging type magnetic valve, are suitable for use as low pressure
The control valve of heavy caliber gas piping.Big caliber electromagnetic valve described in the present invention refers to the magnetic valve of bore >=50mm.
Background technology
Certain space station ring control life support system needs a kind of supporting big caliber electromagnetic valve for emergency pressure relief, it is proposed that bore
Not less than 50mm, 0～0.15MPa of operating pressure, sealed reliable, weight are not more than 2kg, working life setting not less than 3000 times
Meter is required.
The shortcoming that existing conventional magnetic valve has guide electromagnetic valve and direct-acting electromagnetic valve, both valves is：
Guide type electromagnetic valve arrangement, its opening needs the system media pressure differential main valve plug of minimum, unloaded or low
Operating pressure lower valve can not work.
Direct-acting electromagnetic valve can work under unloaded or low operating pressure, will but if to meet bigbore design
Ask, its physical dimension and quality will be very big, far beyond the space station ring scope to be born of control life support system.
Therefore, existing magnetic valve cannot meet the above-mentioned design requirement of the space station ring control life support system.
The content of the invention
Based on above-mentioned background technology, the technical problem to be solved is to provide one kind can be unloaded or have a work under load
Make, size is little, lightweight heavy caliber guide discharging type magnetic valve.
The present invention technical solution be：
A kind of heavy caliber guide discharging type magnetic valve, including valve body, valve gap, core assembly and Electromagnetic Drive control group
Part；Valve seat is provided with valve body；Valve gap is arranged on valve body upper end；Core assembly installing hole is provided with valve gap；
It is characterized in that：
Core assembly includes main valve plug and guide valve core；Main valve plug is arranged at core assembly installing hole, and bottom is disc
And contact with valve base sealing；Main valve plug top is cylindrical structure, and cylindrical structure bottom offers relief hole；Also set up on main valve plug
There are throttle orifice and intercommunicating pore；Throttle orifice is located at the medium inlet side of valve body；Intercommunicating pore one end connects with main valve plug epicoele, the other end
Connect with the relief hole；
The axial cross section of guide valve core is " ⊥ " shape, and outside its " I " portion guide ring is set with, and its "-" portion is located at guide ring lower section；
The "-" portion of guide valve core is less than cylindrical structure internal diameter with diameter greater than guide ring internal diameter；
Guide valve core and guide ring are respectively positioned in the cylindrical structure of main valve plug, and guide ring is fixedly connected with tubular structure, pilot valve
Stretch out and be connected with Electromagnetic Drive control assembly outside tubular structure in " I " portion upper end of core；
The magnetic valve also includes diaphragm；The diaphragm it is interior along part with main valve plug be connected, the peripheral rim portion of diaphragm with
Valve body is connected；
Bore >=the 50mm of the magnetic valve, seat diameter >=80mm, the stroke >=6mm of armature Up/Down.
Core assembly Up/Down in the presence of Electromagnetic Drive control assembly, so as to separating with valve seat or engaging, is realized
The switching of the connected state between medium inlet and media outlet.
The present invention adopts main valve plug of the disk in combination with cylinder, cuts with diaphragm to connect main valve plug and valve body, therefore both
Valve seat latus rectum can be increased, having can minimize valve weight and volume.
Based on above-mentioned basic technical scheme, the present invention also makes following optimization and/or limits：
In order to meet the big range demands of main valve plug, above-mentioned diaphragm adopts disc structure.The interior of diaphragm passes through spiral shell along part
Mother is fixed and clamped on main valve plug, and the peripheral rim portion of diaphragm is fixed and clamped on valve body by valve gap.
In order to reduce the rigidity of diaphragm, to prevent big stroke mode of operation under cause diaphragm fatigue after the multiple action of magnetic valve
Tear, it is ensured that the operating life of magnetic valve, above-mentioned diaphragm adopts both sides for cloth inserted structure in the middle of rubber.
Above-mentioned Electromagnetic Drive control assembly mainly includes coil rack, coil, spring and armature；Coil rack is fixedly mounted
On valve gap, the bottom of coil rack is sleeved on outside the cylindrical structure of guide valve core；Coil winding is outside coil rack；Armature is installed
Can slide axially in coil rack and along coil rack；The top of coil rack is electromagnet, and the magnetic pole strength of electromagnet is just right
Simultaneously stay at regular intervals in the upper surface of armature；Spring is arranged between the magnetic pole strength of coil rack and the upper surface of armature；Armature
The upper end of lower end and guide valve core be connected.
The lower surface of above-mentioned armature is axially disposed the groove being adapted with guide valve core, and groove is radially arranged along armature
There is pin-and-hole one；Guide valve core top corresponding position has been radially arranged pin-and-hole two along guide valve core；Armature and guide valve core are in pin-and-hole one, two
Place is connected by connecting pin.
When being provided with 90 degree of cone angles on above-mentioned armature two faces relative with coil rack, the working gas gap of electromagnet is most
Little, the quality of electromagnet is minimum, while ensure that the stroke of guide valve core and/or main valve plug.
Occur to prevent clamping stagnation and stuck phenomenon, extend the working life of magnetic valve, install outside above-mentioned armature
Elastic anti-friction ring, also installs elastic anti-friction ring outside the cylindrical structure of guide valve core.
To make electromagnetic valve structure compact, above-mentioned main valve plug and guide valve core are co-axially mounted.
Compared with prior art, it is an advantage of the invention that：
(1) present invention incorporates the design feature of direct-acting electromagnetic valve and guide electromagnetic valve, it is adaptable to big orifice rill
Resistance condition of work.In order to meet bigbore design requirement, the present invention (should by the stroke of increase seat diameter, reduction armature
Stroke determines the aperture of main valve plug) ensureing valve circulation area, while being connected using rubber diaphragm between main valve plug and valve body
Connect sealing, and the physical dimension of other assemblies increases very little even without increase, thus it is compact conformation, small volume, lightweight；This
Invention is controlled the engaged/disengaged of core assembly and valve seat by Electromagnetic Drive control assembly, therefore under unloaded or low operating pressure
Can work.
(2) diaphragm of the invention is dish, using the structure of rubber-cloth-rubber, with rigidity it is little, stroke is big the characteristics of,
Both the stroke of core assembly had been can ensure that, can have prevented from causing tired tear after multiple action under big stroke mode of operation again, effectively
Ensure that the operating life of magnetic valve.
(3) 90 ° of cone angle structures are respectively provided with the opposite face of electromagnet of the invention and armature, to ensure armature travel before
Put, reduce work of electromagnet air gap, therefore, it is possible to obtain required electromagnetic attraction with less electromagnetism weight of iron and volume.
(4) throttle orifice, relief hole and intercommunicating pore are devised on main valve plug of the invention, Proper Match throttling in structure design
Hole and the size of relief hole, 3 times that relief hole circulation area is designed as more than or equal to throttle orifice circulation area, so as to by valve
Response time control is opened and closed within 100ms to meet design requirement.
(5) present invention armature is outer and the cylindrical structure of main valve plug outside be respectively mounted elastic anti-friction ring, can reduce armature with
Frictional force during main valve plug action, prevents armature and valve body, main valve plug and coil rack from clamping stagnation and stuck phenomenon occur, extends electricity
The operating life of magnet valve.
(6) sealing reliability of the present invention is high.Structure design upper valve core-valve base sealing is secondary to adopt nonmetallic-metal composite
Sealing structure, nonmetallic encapsulant adopts the preferable elastomeric material of resilience, the sealed end of guide valve core and the sealing of main valve plug
End ensures that block rubber and valve element matrix are reliably connected using rubber curing techniques, and strict control action is on elastomeric material
Seal pressure, it is ensured that the sealing reliability after the multiple action of valve element.
Description of the drawings
Fig. 1 is heavy caliber guide's discharging type electromagnetic valve structure schematic diagram；
Fig. 2 is the main valve plug and guide valve core attachment structure figure of the present invention；
Fig. 3 is the armature structure figure of the present invention.
Wherein reference is：
1- coil racks, 2- coils, 3- springs, 4- armature, 41- elastic anti-friction rings, 5- connecting pins, 6- guide valve cores, 61- connect
Connect hole, 7- main valve plugs, 71- throttle orifices, 72- relief holes, 73- intercommunicating pores, 8- guide rings, 9- diaphragms, 10- valve bodies, 11- adjusting pads
Piece, 12- pads, 13-O shape rubber seal, 14- big nuts, 15- primary nuts, 16-O shape rubber seal, 17- valve gaps, 18-
Valve seat, 19- cone angles, 20- main valve plug epicoeles.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
As shown in Figure 1 and Figure 2, heavy caliber guide discharging type magnetic valve provided by the present invention, including valve body 10, valve gap, valve
Core assembly and Electromagnetic Drive control assembly.
The left end of valve body 10 is medium inlet, and right-hand member is media outlet, is medium channel between medium inlet and media outlet.
Valve seat 18 is provided with valve body 10；Valve gap 17 is arranged on the upper end of valve body 10 (joint is sealed using O shapes rubber seal 13), valve
Core assembly installing hole is offered on lid 17, core assembly is located at core assembly installing hole, during valve closing, core assembly
Bottom contacts with valve base sealing.
Core assembly is combined type valve element, and the main valve plug 7 of core assembly installing hole and main valve plug is nested in by being arranged on
Interior guide valve core 6 is constituted.The bottom of main valve plug 7 is disc and in sealing contact with the upper surface of valve seat 18, and main valve plug 7 is circle
Barrel structure, cylindrical structure bottom offers relief hole 72；Main valve plug 7 offers throttle orifice 71, cylinder knot at medium inlet
The intercommunicating pore 73 for connecting main valve plug epicoele and relief hole is offered on structure.The circulation of the circulation area ＜ intercommunicating pore of throttle orifice
The circulation area of area ＜ relief holes.
Guide valve core 6 is generally shaft-like, and lower end diameter becomes wonderful works seal header joints；The bar portion of guide valve core 6 and the circle of main valve plug 7
Guide ring 8 is installed, guide ring 8 is connected threadably with main valve plug 7 between barrel structure, guide ring 8 and guide valve core 6
Between there is gap.The upper end bar portion of guide valve core 6 is stretched out outside tubular structure and the armature 4 of Electromagnetic Drive control assembly passes through connecting pin
5 are connected, and lower end head is in sealing contact with relief hole 72, and the bottom of cylindrical structure is used as guide valve core valve seat.
For the size for reducing valve as far as possible when bigbore design requirement is met, the seat diameter of the present invention is
>=80mm, and main valve plug and valve body are connected using diaphragm 9, concrete connected mode passes through big nut 14 for the interior of diaphragm 9 along part
With the upper end surface that pad 12 is fixed on main valve plug, the peripheral rim portion of diaphragm 9 is fixed on valve body and valve gap by adjust pad 11
Between.In order to ensure the stroke of core assembly and to prevent multiple action under big stroke from causing tired tear, it is ensured that magnetic valve is moved
Make the life-span, diaphragm 9 adopts both sides for the disc-shaped diaphragm of folder cloth structure in the middle of rubber.
Electromagnetic Drive control assembly is mainly made up of coil 2, coil rack 1 and armature 4.Coil rack 1 is fixedly mounted on
(sealed using O shapes rubber seal 16 with valve gap joint) on valve gap 17, the bottom of coil rack 1 is cylinder set in pilot valve
Fix outside the cylindrical structure of core and by primary nut 15, the installing space of armature 4, coil rack are reserved with the middle part of coil rack
Top be electromagnet；Coil 2 is wound on outside coil rack 1；Armature 4 is arranged in coil rack 1 and can be along coil rack axle
To movement (to improve life of valve, in the outer installation elastic anti-friction ring 41 of armature 4), the upper surface of armature 4 is just to the magnetic of electromagnet
Pole-face is simultaneously reserved with certain stroke distances；Spring 3 is installed between the magnetic pole strength of electromagnet and the upper surface of armature；Under armature
End is connected with the upper end of guide valve core by connecting pin.
90 degree of cone angles 19 are respectively provided with opposite face for further reduction magnetic valve size, electromagnet of the present invention and armature to tie
Structure, to reduce the quality and volume of electromagnet to greatest extent on the premise of formed objects electromagnetic attraction.
The operation principle of the present invention：
The working method of the present invention is opened to be powered, power-off is closed.When valve does not work, medium is by main valve plug 7
Throttle orifice 71 enters main valve plug epicoele 20, provides sealing force for main valve plug 7 together with spring 3, it is ensured that the positive sealing of main valve plug；
Spring 3 is that guide valve core 6 provides sealing force, it is ensured that the positive sealing of guide valve core.
Under idle condition, after coil 2 is powered, electromagnetic attraction overcomes spring force that guide valve core 6 and main valve plug 7 are carried upwards successively
Rise, valve is opened.
When medium inlet and media outlet have pressure reduction, after coil 2 is powered, guide valve core 6 is first picked up a small distance,
Relief hole 72 on main valve plug 7 to be first opened and connect main valve epicoele with the media outlet of valve, due to the circulating face of relief hole 72
Product is bigger than throttle orifice 71, and main valve plug upper cavity pressure declines rapidly, when the medium active force on main valve plug is less than electromagnet suction,
Main valve plug 7 is opened in the presence of electromagnetic attraction and medium power.
When valve needs to close, first close to the power-off of coil 2, guide valve core 6 under the force of a spring, main valve plug epicoele pressure
Power rises rapidly, and guide valve core 6 and main valve plug 7 are moved downward under spring force and medium power collective effect, valve closing.
Claims (8)
1. a kind of heavy caliber guide discharging type magnetic valve, including valve body, valve gap, core assembly and Electromagnetic Drive control assembly；
Valve seat is provided with valve body；Valve gap is arranged on valve body upper end；Core assembly installing hole is provided with valve gap；
It is characterized in that：
Core assembly includes main valve plug and guide valve core；Main valve plug is arranged at core assembly installing hole, bottom be disc and with
Valve base sealing is contacted；Main valve plug top is cylindrical structure, and cylindrical structure bottom offers relief hole；Section is additionally provided with main valve plug
Discharge orifice and intercommunicating pore；Throttle orifice is located at the medium inlet side of valve body；Intercommunicating pore one end connects with main valve plug epicoele, the other end and institute
State relief hole connection；
The axial cross section of guide valve core is " ⊥ " shape, and outside its " I " portion guide ring is set with, and its "-" portion is located at guide ring lower section；Pilot valve
The "-" portion of core is less than cylindrical structure internal diameter with diameter greater than guide ring internal diameter；
Guide valve core and guide ring are respectively positioned in the cylindrical structure of main valve plug, and guide ring is fixedly connected with tubular structure, guide valve core
Stretch out and be connected with Electromagnetic Drive control assembly outside tubular structure in " I " portion upper end；
The magnetic valve also includes diaphragm；The interior of the diaphragm is connected along part with main valve plug, the peripheral rim portion and valve body of diaphragm
It is connected；
Bore >=the 50mm of the magnetic valve, seat diameter >=80mm, the stroke >=6mm of armature Up/Down.
2. heavy caliber guide discharging type magnetic valve according to claim 1, it is characterised in that：The diaphragm is dish, film
The interior of piece is fixed and clamped on main valve plug along part by nut, and the peripheral rim portion of diaphragm is fixed and clamped in valve body by valve gap
On.
3. heavy caliber guide discharging type magnetic valve according to claim 1 and 2, it is characterised in that：The diaphragm adopts two
Side is cloth inserted structure in the middle of rubber.
4. heavy caliber guide discharging type magnetic valve according to claim 1, it is characterised in that：The Electromagnetic Drive control group
Part mainly includes coil rack, coil, spring and armature；Coil rack is fixedly mounted on valve gap, the bottom set of coil rack
It is mounted in outside the cylindrical structure of guide valve core；Coil winding is outside coil rack；Armature is arranged in coil rack and can be along coil bone
Frame slides axially；The top of coil rack is electromagnet, upper surface just to armature of the magnetic pole strength of electromagnet and leave it is certain between
Away from；Spring is arranged between the magnetic pole strength of coil rack and the upper surface of armature；The lower end of armature is connected with the upper end of guide valve core.
5. heavy caliber guide discharging type magnetic valve according to claim 4, it is characterised in that：The lower surface of armature is vertically
The groove being adapted with guide valve core is provided with, groove has been radially arranged pin-and-hole one along armature；Guide valve core top corresponding position
Pin-and-hole two has been radially arranged along guide valve core；Armature and guide valve core are connected at pin-and-hole one, two by connecting pin.
6. the heavy caliber guide's discharging type magnetic valve according to claim 4 or 5, it is characterised in that：The armature and coil
Skeleton is provided with 90 degree of cone angles on two relative faces.
7. the heavy caliber guide's discharging type magnetic valve according to claim 4 or 5, it is characterised in that：Install outside the armature
There is elastic anti-friction ring；Elastic anti-friction ring is installed outside the cylindrical structure of guide valve core.
8. heavy caliber guide discharging type magnetic valve according to claim 1, it is characterised in that：The main valve plug and guide valve core
It is co-axially mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611251613.8A CN106641398B (en) | 2016-12-30 | 2016-12-30 | Large-caliber pilot unloading type electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611251613.8A CN106641398B (en) | 2016-12-30 | 2016-12-30 | Large-caliber pilot unloading type electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106641398A true CN106641398A (en) | 2017-05-10 |
| CN106641398B CN106641398B (en) | 2020-10-16 |
Family
ID=58837094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611251613.8A Active CN106641398B (en) | 2016-12-30 | 2016-12-30 | Large-caliber pilot unloading type electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106641398B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339490A (en) * | 2017-08-17 | 2017-11-10 | 无锡威孚高科技集团股份有限公司 | One kind stops solenoid |
| CN109139591A (en) * | 2018-09-25 | 2019-01-04 | 中国农业大学 | A kind of adaptive pilot-operated type electric-hydraulic proportion screw-in cartridge valve of mountain and hill |
| CN112483654A (en) * | 2020-10-27 | 2021-03-12 | 北京宇航系统工程研究所 | Quick response solenoid valve |
| CN112664702A (en) * | 2020-12-14 | 2021-04-16 | 西安航天动力研究所 | Miniaturized low-temperature electromagnetic control valve with long service life and adjustable flow |
| CN113757439A (en) * | 2021-09-17 | 2021-12-07 | 西安航天动力研究所 | Plug-in type high-pressure unloading electromagnetic valve |
| CN115264078A (en) * | 2022-05-31 | 2022-11-01 | 燕山大学 | External self-icebreaking electromagnetic valve with exciting body |
| WO2023024195A1 (en) * | 2021-08-21 | 2023-03-02 | 浙江鸿友压缩机制造有限公司 | Pilot-operated electronic unloading valve and compressor system equipped with same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0226381A (en) * | 1988-07-15 | 1990-01-29 | Toto Ltd | Solenoid valve |
| CN201344282Y (en) * | 2009-03-15 | 2009-11-11 | 蒋可贞 | Dished diaphragm type universal solenoid valve with large flow capacity |
| CN202418711U (en) * | 2012-01-04 | 2012-09-05 | 浙江永久科技实业有限公司 | Diaphragm type electromagnetic valve |
| CN205446871U (en) * | 2015-12-10 | 2016-08-10 | 西安航天动力研究所 | Wide working range's substep direct action type electromagnetism actuates valve |
| CN206377328U (en) * | 2016-12-30 | 2017-08-04 | 西安航天动力研究所 | A kind of heavy caliber guide discharging type magnetic valve |
-
2016
- 2016-12-30 CN CN201611251613.8A patent/CN106641398B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0226381A (en) * | 1988-07-15 | 1990-01-29 | Toto Ltd | Solenoid valve |
| CN201344282Y (en) * | 2009-03-15 | 2009-11-11 | 蒋可贞 | Dished diaphragm type universal solenoid valve with large flow capacity |
| CN202418711U (en) * | 2012-01-04 | 2012-09-05 | 浙江永久科技实业有限公司 | Diaphragm type electromagnetic valve |
| CN205446871U (en) * | 2015-12-10 | 2016-08-10 | 西安航天动力研究所 | Wide working range's substep direct action type electromagnetism actuates valve |
| CN206377328U (en) * | 2016-12-30 | 2017-08-04 | 西安航天动力研究所 | A kind of heavy caliber guide discharging type magnetic valve |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339490A (en) * | 2017-08-17 | 2017-11-10 | 无锡威孚高科技集团股份有限公司 | One kind stops solenoid |
| CN109139591A (en) * | 2018-09-25 | 2019-01-04 | 中国农业大学 | A kind of adaptive pilot-operated type electric-hydraulic proportion screw-in cartridge valve of mountain and hill |
| CN112483654A (en) * | 2020-10-27 | 2021-03-12 | 北京宇航系统工程研究所 | Quick response solenoid valve |
| CN112664702A (en) * | 2020-12-14 | 2021-04-16 | 西安航天动力研究所 | Miniaturized low-temperature electromagnetic control valve with long service life and adjustable flow |
| WO2023024195A1 (en) * | 2021-08-21 | 2023-03-02 | 浙江鸿友压缩机制造有限公司 | Pilot-operated electronic unloading valve and compressor system equipped with same |
| CN113757439A (en) * | 2021-09-17 | 2021-12-07 | 西安航天动力研究所 | Plug-in type high-pressure unloading electromagnetic valve |
| CN113757439B (en) * | 2021-09-17 | 2023-06-27 | 西安航天动力研究所 | Plug-in mounting type high-pressure unloading electromagnetic valve |
| CN115264078A (en) * | 2022-05-31 | 2022-11-01 | 燕山大学 | External self-icebreaking electromagnetic valve with exciting body |
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|---|---|
| CN106641398B (en) | 2020-10-16 |
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