CN112483654A - Quick response solenoid valve - Google Patents
Quick response solenoid valve Download PDFInfo
- Publication number
- CN112483654A CN112483654A CN202011164986.8A CN202011164986A CN112483654A CN 112483654 A CN112483654 A CN 112483654A CN 202011164986 A CN202011164986 A CN 202011164986A CN 112483654 A CN112483654 A CN 112483654A
- Authority
- CN
- China
- Prior art keywords
- valve
- movable valve
- main movable
- main
- unloading
- 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
- 230000004044 response Effects 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000007770 graphite material Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 9
- 239000002737 fuel gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
-
- 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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
- F16K31/406—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston
-
- 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
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
- F16K39/024—Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/06—Spindle sealings with stuffing-box ; Sealing rings with at least one ring attached to both spindle and housing
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
- F16L59/161—Housings for valves, tee pieces, or the like
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 relates to a quick response electromagnetic valve, which comprises a shell, a spring, an electromagnet, a sealing ring, an ejector rod, an unloading valve core, a main movable valve and a shell valve seat, wherein when the electromagnetic valve is not electrified, a cavity at the upper part of the main movable valve is communicated with an inlet of the electromagnetic valve and is filled with gas, and the main movable valve and the unloading movable valve are tightly pressed on the valve seat to ensure sealing; after the power is switched on, the ejector rod moves upwards to drive the unloading movable valve to move upwards, gas at the upper part of the main movable valve is discharged through a vent hole at the lower end of the main movable valve, the main movable valve moves upwards under the push of gas at the inlet of the electromagnetic valve, and the outlet of the electromagnetic valve is communicated with the inlet; after power failure, the spring pushes the ejector rod to move downwards, the unloading movable valve is contacted with the main movable valve, and an exhaust hole at the lower end of the main movable valve is sealed; the air is inflated to the upper part of the main movable valve through a gap between the main movable valve and the inner wall of the groove of the shell and the air inlet hole on the side wall, and the main movable valve and the unloading movable valve move downwards to press the main movable valve and the unloading movable valve on the valve seat to ensure sealing. The invention adopts the action principle that the small valve core drives the large valve core, and realizes the quick response of the main valve.
Description
Technical Field
The invention relates to a quick response electromagnetic valve which is applied to an attitude control power system of an aerospace carrier rocket/missile weapon. The invention belongs to the technical field of pneumatic elements.
Background
The high-temperature electromagnetic valve is required to be adopted to control high-temperature fuel gas in the current attitude control system, but the electromagnetic valve used at home and abroad is mainly suitable for normal-temperature and deep-low-temperature medium working conditions, and a large-caliber electromagnetic valve suitable for 1000 ℃ ultrahigh-temperature working conditions is lacked.
The design of the ultrahigh-temperature large-caliber electromagnetic valve mainly has two difficulties:
(1) the electromagnetic valve has the advantages that the quick response of the large-diameter electromagnetic valve is realized, the conventional electromagnetic valve is generally in a direct-acting structure for realizing the quick response, the suction force is exponentially increased along with the increase of the diameter of a valve seat, and the structure weight of the electromagnet part in the traditional direct-acting electromagnetic valve is overlarge and simultaneously has the problem of long-time work heating; if a pilot type main valve structure is adopted, zero pressure control cannot be realized.
(2) And (4) heat-proof design. Because the applicable temperature of the electromagnet is below 200 ℃, the high-temperature gas scouring of the valve seat part enables the shell to be heated up rapidly, and if the heat-proof design is poor, the temperature rise of the electromagnet part can exceed the allowable temperature, and the action performance of the electromagnetic valve is influenced.
Disclosure of Invention
The technical problem solved by the invention is as follows: the defects of the prior art are overcome, and the quick response electromagnetic valve is provided, so that the working requirement of the attitude control system on quick adjustment of the electromagnetic valve is met.
The technical scheme of the invention is as follows: the utility model provides a quick response solenoid valve, this solenoid valve includes casing, spring, electro-magnet, sealing washer, ejector pin, off-load case, main movable valve, casing disk seat, wherein:
the bottom of the shell is provided with a groove, the side surface of the groove is provided with an inlet of the electromagnetic valve, the bottom of the groove is used as a valve seat of the electromagnetic valve and is arranged as an outlet of the electromagnetic valve, the heat insulation device is of a cylindrical structure with a central through hole, the upper part of the groove is placed, the electromagnet is also of a cylindrical structure with a central through hole, the inner diameter of the central through hole of the electromagnet is smaller than that of the central through hole of the heat insulation device, the lower end of the electromagnet is placed above the heat insulation device, the electromagnet props against the shell to realize fixation and spacing, the central axis of the electromagnet coincides with the central axis of the heat insulation device and the central axis of the groove, the ejector rod is positioned in and penetrates through the central through holes of the electromagnet and the heat insulation device, the upper end, the main movable valve is in clearance fit with the main movable valve, an air inlet hole is formed in the side face of the cavity of the main movable valve and is aligned with an inlet of the electromagnetic valve, and an exhaust hole is formed in the bottom of the cavity of the main movable valve and is aligned with an outlet of the electromagnetic valve.
When not electrified, the upper cavity of the main movable valve is communicated with the inlet of the electromagnetic valve and is full of fuel gas, and the main movable valve and the unloading movable valve are tightly pressed on the valve seat to ensure sealing.
After the power is switched on, the ejector rod moves upwards to drive the unloading movable valve to move upwards, gas at the upper part of the main movable valve is discharged through a vent hole at the lower end of the main movable valve, the main movable valve moves upwards under the push of gas at the inlet of the electromagnetic valve, and the outlet of the electromagnetic valve is communicated with the inlet;
after power failure, the spring pushes the ejector rod to move downwards, the unloading movable valve is contacted with the main movable valve, and an exhaust hole at the lower end of the main movable valve is sealed; the air is inflated to the upper part of the main movable valve through a gap between the main movable valve and the inner wall of the groove of the shell and the air inlet hole on the side wall, and the main movable valve and the unloading movable valve move downwards to press the main movable valve and the unloading movable valve on the valve seat to ensure sealing.
And a heat insulation pad is arranged above the ejector rod and used for isolating heat conduction between the electromagnet and the shell.
The sealing ring is made of graphite materials and can resist the working condition of high temperature of over 800 ℃.
The heat insulation device is made of high silica.
The drift diameter of the electromagnetic valve is larger than 25 mm.
The aperture of the air inlet hole of the main movable valve is smaller than that of the air outlet hole, so that the air inlet speed of the upper cavity of the main movable valve is smaller than the air outlet speed, and the air on the upper part of the main movable valve can be discharged.
Compared with the prior art, the invention has the beneficial effects that:
(1) the main valve core and the unloading movable valve form an unloading structure, and the action principle that the small valve core drives the large valve core is adopted, so that the quick response of the main valve is realized.
(2) The aperture of the air inlet hole of the main movable valve is smaller than that of the air outlet hole, so that the air inlet speed of the upper cavity of the main valve is lower than the air outlet speed, the air at the upper part of the main valve can be exhausted, and the main valve core can move upwards under the condition of the pressure difference between the upper part and the lower part;
(3) the valve body and the electromagnet adopt a heat insulation structure, the spring cavity adopts a heat insulation and heat insulation design structure, the heat conduction of high-temperature gas to the electromagnet part is effectively isolated, the adaptability of the ultra-high temperature working condition is realized, the influence of the temperature heat conduction effect of flushing after the main valve is opened on the electromagnet is further reduced, the electromagnet meets the temperature working condition, and the failure of the electromagnet is avoided.
(4) The invention adopts an unloading type direct-acting structure, realizes the whole release of control pressure and realizes zero-pressure control.
Drawings
Fig. 1 is a schematic diagram of an ultrahigh-temperature electromagnetic valve according to an embodiment of the invention.
Detailed Description
The product of the invention is described in detail below with reference to fig. 1.
The invention relates to an ultrahigh-temperature quick-response large-caliber electromagnetic valve which comprises a shell, a spring 1, an electromagnet 3, a sealing ring 4, an ejector rod 6, an unloading valve core 7, a main movable valve 8 and a shell valve seat 9.
Wherein:
the bottom of the shell is provided with a groove, the side surface of the groove is provided with an inlet of the electromagnetic valve, the bottom of the groove is used as a valve seat of the electromagnetic valve and is arranged as an outlet of the electromagnetic valve, the heat insulation device 5 is of a cylindrical structure with a central through hole, the upper part of the groove is placed, the electromagnet 3 is also of a cylindrical structure with a central through hole, the inner diameter of the central through hole of the electromagnet 3 is smaller than that of the central through hole of the heat insulation device 5, and the lower end of the electromagnet 3 is placed above the heat insulation device; the shell is withstood by the electromagnet 3, fixing and limiting are realized, the central axis of the electromagnet 3 coincides with the central axis of the heat insulation device 5 and the central axis of the groove, the ejector rod 6 is positioned in and penetrates through the central through hole of the electromagnet 3 and the heat insulation device 5, the upper end of the ejector rod 6 withstands the shell through the spring 1, a sealing ring 4 is arranged between the middle part and the inner wall of the central through hole of the heat insulation device 5, the other end of the ejector rod is hooked with the unloading valve core 7 in the groove of the shell, the unloading valve core 7 is positioned in the cavity of the main valve 8 and is in clearance fit with the main valve 8, the side surface of the cavity of the main valve. The aperture of the air inlet hole of the main movable valve 8 is smaller than that of the air outlet hole, so that the air inlet speed of the upper cavity of the main movable valve is smaller than the air outlet speed, and the air on the upper part of the main movable valve can be discharged.
Preferably, the heat insulation pad 2 is arranged above the ejector rod 6, the spring 1 presses the heat insulation pad 2 to the ejector rod 6, and the heat insulation pad 2 is used for isolating heat conduction between the electromagnet and the shell.
Preferably, the sealing ring 4 is made of graphite materials and can withstand the working condition of high temperature of over 800 ℃.
Preferably, the heat insulation device 5 is made of high silica and can withstand the working condition of high temperature of over 800 ℃.
The electromagnetic valve is suitable for large-size electromagnetic valves with the drift diameter of the electromagnetic valve larger than 25 mm.
The working process of the ultrahigh-temperature quick-response large-caliber electromagnetic valve is as follows:
when not electrified, the upper cavity of the main movable valve is communicated with the inlet of the electromagnetic valve and is filled with gas, and the main movable valve 8 and the unloading movable valve 7 are pressed on the valve seat to ensure sealing;
after the power is switched on, the ejector rod 6 moves upwards to drive the unloading movable valve 7 to move upwards, gas on the upper part of the main movable valve 8 is discharged through a vent hole at the lower end of the main movable valve 8, the main movable valve 8 moves upwards under the push of fuel gas at the inlet of the electromagnetic valve, and the outlet and the inlet of the electromagnetic valve are communicated;
after power failure, the spring 1 pushes the ejector rod 6 to move downwards, the unloading movable valve 7 is in contact with the main movable valve 8, and an exhaust hole at the lower end of the main movable valve 8 is sealed; the gas is inflated to the upper part of the main movable valve 8 through a gap between the main movable valve and the inner wall of the groove of the shell and the side wall gas inlet hole, the main movable valve 8 and the unloading movable valve 7 move downwards, and the main movable valve 8 and the unloading movable valve 7 are pressed on the valve seat to ensure sealing.
The invention solves the problem that the existing electromagnetic valve can not adapt to large-caliber ultrahigh temperature by adopting the design measures of unloading valve core structure, heat insulation design and the like. The main characteristics are as follows:
(1) the main valve core and the unloading movable valve form an unloading structure, and the quick response of the main valve is realized.
(2) The valve body and the electromagnet adopt a heat insulation structure, the spring cavity adopts a heat insulation design structure, heat conduction of high-temperature gas to the electromagnet part is effectively isolated, and adaptability of ultra-high temperature working conditions is realized.
(3) And an unloading type direct-acting structure is adopted, so that the whole release of control pressure is realized, and zero-pressure control is realized.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Claims (6)
1. The utility model provides a quick response solenoid valve, its characterized in that includes casing, spring (1), electro-magnet (3), sealing washer (4), ejector pin (6), off-load case (7), main movable valve (8), casing disk seat (9), wherein:
the bottom of the shell is provided with a groove, the side surface of the groove is provided with an inlet of an electromagnetic valve, the bottom of the groove is used as a valve seat of the electromagnetic valve, and is arranged as an outlet of the electromagnetic valve, the heat insulation device (5) is of a cylindrical structure with a central through hole, the upper part of the groove is placed, the electromagnet (3) is also of a cylindrical structure with a central through hole, the inner diameter of the central through hole of the electromagnet (3) is smaller than that of the heat insulation device (5), the lower end of the electromagnet (3) is placed above the heat insulation device (5), the electromagnet (3) props against the shell to realize fixation and spacing, the central axis of the electromagnet (3) coincides with the central axis of the heat insulation device (5) and the central axis of the groove, the ejector rod (6) is positioned in and penetrates through the central through holes of the electromagnet (3) and the heat insulation device (5), the, the other end of the valve body is hooked with an unloading valve core (7) in a groove of the shell, the unloading valve core (7) is positioned in a cavity of the main movable valve (8) and is in clearance fit with the main movable valve (8), a gas inlet hole is formed in the side surface of the cavity of the main movable valve (8) and is aligned with an inlet of the electromagnetic valve, and a gas exhaust hole is formed in the bottom of the cavity of the main movable valve (8) and is aligned with;
when not electrified, the upper cavity of the main movable valve is communicated with the inlet of the electromagnetic valve and is filled with gas, and the main movable valve (8) and the unloading movable valve (7) are pressed on the valve seat to ensure sealing;
after the power is switched on, the ejector rod (6) moves upwards to drive the unloading movable valve (7) to move upwards, gas at the upper part of the main movable valve (8) is discharged through a vent hole at the lower end of the main movable valve (8), the main movable valve (8) moves upwards under the push of gas at the inlet of the electromagnetic valve, and the outlet and the inlet of the electromagnetic valve are communicated;
after power failure, the spring (1) pushes the ejector rod (6) to move downwards, the unloading movable valve (7) is in contact with the main movable valve (8), and an exhaust hole at the lower end of the main movable valve (8) is sealed; the gas is inflated to the upper part of the main movable valve (8) through a gap between the main movable valve and the inner wall of the groove of the shell and the side wall gas inlet hole, the main movable valve (8) and the unloading movable valve (7) move downwards, and the main movable valve (8) and the unloading movable valve (7) are pressed on the valve seat to ensure sealing.
2. A rapid response solenoid valve according to claim 1, wherein a heat insulating pad (2) is provided above the plunger (6), the heat insulating pad (2) isolating the heat conduction between the electromagnet and the housing.
3. The quick response electromagnetic valve according to claim 1, characterized in that the sealing ring (4) is made of graphite material and can withstand the high temperature working condition of more than 800 ℃.
4. A rapid response solenoid valve according to claim 1, characterised in that said thermal insulation means (5) is made of high silica.
5. A rapid response solenoid according to claim 1 wherein the solenoid has a diameter greater than 25 mm.
6. The quick response electromagnetic valve according to claim 1, characterized in that the aperture of the air inlet hole of the main valve (8) is smaller than that of the air outlet hole, so as to ensure that the air inlet speed of the upper cavity of the main valve is smaller than the air outlet speed, and ensure that the air at the upper part of the main valve can be exhausted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011164986.8A CN112483654A (en) | 2020-10-27 | 2020-10-27 | Quick response solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011164986.8A CN112483654A (en) | 2020-10-27 | 2020-10-27 | Quick response solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112483654A true CN112483654A (en) | 2021-03-12 |
Family
ID=74927291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011164986.8A Pending CN112483654A (en) | 2020-10-27 | 2020-10-27 | Quick response solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112483654A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359600A (en) * | 2011-09-30 | 2012-02-22 | 河南航天压力元件有限公司 | Pilot electromagnetic valve |
| CN202451850U (en) * | 2012-02-16 | 2012-09-26 | 北京兰天达汽车清洁燃料技术有限公司 | Novel high-pressure electromagnetic valve |
| CN103759021A (en) * | 2013-12-26 | 2014-04-30 | 鞍山电磁阀有限责任公司 | Electromagnetic actuation stop valve for venting pile top of nuclear power station |
| CN203614833U (en) * | 2013-10-31 | 2014-05-28 | 北京宇航系统工程研究所 | Unloading switch |
| CN104455650A (en) * | 2014-09-30 | 2015-03-25 | 宁波星箭航天机械有限公司 | Pilot electromagnetic valve |
| CN106641398A (en) * | 2016-12-30 | 2017-05-10 | 西安航天动力研究所 | Large-caliber pilot unloading type electromagnetic valve |
| EP3176480A1 (en) * | 2015-12-03 | 2017-06-07 | Bitron Industrie Espana, S.A. | Solenoid valve for releasing fluid pressure |
| CN208237189U (en) * | 2018-05-04 | 2018-12-14 | 河南航天液压气动技术有限公司 | Latching valve and its electromagnet |
| CN109973456A (en) * | 2019-04-16 | 2019-07-05 | 武汉科技大学 | A kind of automatically controlled high pressure check valve of combined type |
| CN209876109U (en) * | 2019-05-29 | 2019-12-31 | 河南航天液压气动技术有限公司 | High-temperature medium electromagnetic valve |
-
2020
- 2020-10-27 CN CN202011164986.8A patent/CN112483654A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359600A (en) * | 2011-09-30 | 2012-02-22 | 河南航天压力元件有限公司 | Pilot electromagnetic valve |
| CN202451850U (en) * | 2012-02-16 | 2012-09-26 | 北京兰天达汽车清洁燃料技术有限公司 | Novel high-pressure electromagnetic valve |
| CN203614833U (en) * | 2013-10-31 | 2014-05-28 | 北京宇航系统工程研究所 | Unloading switch |
| CN103759021A (en) * | 2013-12-26 | 2014-04-30 | 鞍山电磁阀有限责任公司 | Electromagnetic actuation stop valve for venting pile top of nuclear power station |
| CN104455650A (en) * | 2014-09-30 | 2015-03-25 | 宁波星箭航天机械有限公司 | Pilot electromagnetic valve |
| EP3176480A1 (en) * | 2015-12-03 | 2017-06-07 | Bitron Industrie Espana, S.A. | Solenoid valve for releasing fluid pressure |
| CN106641398A (en) * | 2016-12-30 | 2017-05-10 | 西安航天动力研究所 | Large-caliber pilot unloading type electromagnetic valve |
| CN208237189U (en) * | 2018-05-04 | 2018-12-14 | 河南航天液压气动技术有限公司 | Latching valve and its electromagnet |
| CN109973456A (en) * | 2019-04-16 | 2019-07-05 | 武汉科技大学 | A kind of automatically controlled high pressure check valve of combined type |
| CN209876109U (en) * | 2019-05-29 | 2019-12-31 | 河南航天液压气动技术有限公司 | High-temperature medium electromagnetic valve |
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Application publication date: 20210312 |