US20030159454A1 - Bistable electromagnetic valve - Google Patents

Bistable electromagnetic valve Download PDF

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Publication number
US20030159454A1
US20030159454A1 US10/367,867 US36786703A US2003159454A1 US 20030159454 A1 US20030159454 A1 US 20030159454A1 US 36786703 A US36786703 A US 36786703A US 2003159454 A1 US2003159454 A1 US 2003159454A1
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United States
Prior art keywords
valve
valve according
designed
pole piece
housing
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.)
Abandoned
Application number
US10/367,867
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English (en)
Inventor
Hubert Ott
Thomas Grau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20030159454A1 publication Critical patent/US20030159454A1/en
Assigned to SCHROTT, HARALD reassignment SCHROTT, HARALD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GRAU, THOMAS, OTT, HUBERT
Abandoned legal-status Critical Current

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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
    • 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
    • F16K31/0603—Multiple-way valves
    • F16K31/0624—Lift valves
    • F16K31/0627—Lift valves with movable valve member positioned between seats
    • F16K31/0631—Lift valves with movable valve member positioned between seats with ball shaped 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
    • 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
    • F16K31/0603—Multiple-way valves
    • F16K31/0606—Multiple-way valves fluid passing through the solenoid coil
    • 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
    • F16K31/0651—One-way valve the fluid passing through the solenoid coil
    • 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
    • F16K31/0658—Armature and valve member being one single element
    • F16K31/0662—Armature and valve member being one single element with a ball-shaped valve member
    • 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
    • F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/12—Sound
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2511—Evaporator distribution valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/003—Filters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86622—Motor-operated

Definitions

  • the invention relates to a bistable electromagnetic valve according to the preamble to claim 1.
  • a bistable situation is achieved by arranging permanent magnets outside the valve housing, next to the valve chamber or next to the pole pieces, so that the valve body has two end positions at the pole pieces, in which it is held by these permanent magnets.
  • known valves have a control coil arranged in the axial extension of a pole, thereby resulting in different forces of attraction for the two end positions of the valve body upon activation of the control coil.
  • Another known layout of the control coil is laterally situated next to the valve chamber, which yields a uniform distribution of forces of attraction for the control coil on the valve body in both end positions, but the dimensions of the permanent magnets must be comparatively large due to a lacking, or at least not closed, magnetic return sheet, which results in a corresponding manufacturing expense.
  • the object of the invention relative to the described prior art is to propose a valve with a compact design that is inexpensive to manufacture.
  • a valve according to the invention is characterized by the fact that at least one permanent magnet is arranged inside the valve chamber. In this case, contact between the permanent magnet and the fluid streaming through the valve is accepted.
  • the advantage to this arrangement is that the permanent magnet is situated in direct proximity to the valve housing or pole piece, and hence can be made smaller.
  • the design can here be made so compact that the valve chamber fits completely inside the control coil.
  • this also yields additional advantages.
  • At least two permanent magnets are provided, arranged spaced apart in an axial direction. This makes it possible to increase the stability of the two end positions of the valve body via higher forces of attraction of the permanent magnets, and hence to also improve the tightness of the valve in the respective position.
  • this polarization direction also enables the use of annular magnets, which envelop the respective valve seat and are aligned toward the valve chamber with the respective like pole.
  • This embodiment can be made especially compact.
  • the advantage to this design is that the resultant magnetic fields are rotationally symmetric relative to the middle axis of the valve, which yields a good axially parallel attraction of the valve body designed as a magnet armature.
  • these annular magnets can be slipped onto the respective pole piece, which preferably exhibits an annular shoulder in the area of the seal seat for this purpose.
  • the respective annular magnet can therefore be mounted by simply being slipped onto the accompanying pole piece until it hits the annular shoulder.
  • a spacer ring is preferably also provided, which defines the distance between the permanent magnets, and hence between the pole pieces.
  • the spacer ring can therefore be used to precisely position the pole pieces and the permanent magnets relative to each other by simply joining them together, and then fix them in place inside the valve housing.
  • valve body In embodiments based on prior art, separate spheres were secured as sealing elements to a valve body with correspondingly larger dimensions. Designing the valve body as a sphere not only gives the valve body a smaller structural shape, but also provides for a good mobility of the valve body, with as little rubbing against the valve chamber as possible, as well as for good centering, e.g., in a spherical seal seat.
  • the slight mass of the spherical valve body also lowers the impact pulse of the valve body on the seal seat, thereby resulting in less noise generation and a distinctly longer service life for the valve.
  • the decreased load on the valve seat lessens the requirements, and hence the complexity, associated with its production. If necessary, the valve seat or pole piece enveloping the valve seat does not even have to be hardened.
  • valve body in particular a spherical valve body of the kind described above, is advantageously guided using a guide ring inside the valve chamber, which provides the valve body with an external guide.
  • guide ring can simultaneously be designed as a spacer ring for the permanent magnet(s).
  • a filter element is also advantageously provided to keep dirt particles away from the seal seat, which otherwise might end up resulting in malfunctions. Stringent requirements are placed on tightness above all in refrigerant circuits, while the introduction of dirt particles, e.g. during soldering procedures or other operations, cannot be entirely avoided during the assembly of these refrigerant circuits. Since dirt is only introduced during production stages, a filter element with a capacity sufficient for the one-time cleansing of fluid in the closed circulation system can prevent the contamination of valve seats for a long time.
  • the filter element is simultaneously designed as the guide ring for the valve body.
  • the filter element can also be designed as a spacer ring between the permanent magnets. In both structural designs, the number of required valve components is reduced.
  • a single component is simultaneously designed as a spacer ring, guide ring and filter element, so that all three functions can be performed by a single component, thereby minimizing the number of components for these functions.
  • the valve housing is preferably designed as a circular tube.
  • a circular tube is particularly easy to incorporate into a control coil, which usually exhibits a cylindrical passage. If necessary, adapter sleeves can be provided on the outside for this purpose, to precisely center the circular tube housing without play inside the control coil, and improve, i.e. increase, the magnetic flux of the control coil.
  • the valve housing is also preferably designed as a single piece, so as to avoid bonding sites with the resultant tightness problems and inspections. In combination with a circular tube housing, this yields a particularly simple one-piece structural shape, in which only connecting tubes must be attached on the end side, for example.
  • the connecting tubes can here be soldered in, or injected or attached on the valve housing using other known joining methods.
  • At least one pole piece is advantageously provided with one or more fluid channels outside the valve axis or outside the range of action of the valve body, thereby resulting in a constant connection between the inside of the valve chamber, where the valve body is located, and the corresponding valve coupling on the side of this pole piece.
  • This connection between the accompanying coupling and the valve chamber is never influenced by the motion of the valve body.
  • the specified fluid channel(s) can here be provided outside or inside the pole piece (e.g., using holes or the like).
  • an initially cylindrical pole piece is provided with external smoothened surfaces, so that areas still continue to arise between the resultant fluid channels where the pole piece abuts tightly against the interior wall of the valve housing, as a result of which the pole piece sits centrally in the valve housing.
  • the fluid channels are routed by the permanent magnets. This is ensured in particular in an embodiment where one or more annular magnets are provided, along with externally guided fluid channels.
  • the inflow of fluid to the one or several permanent magnets provides an additional filtration effect by holding back magnetic particles on the permanent magnet.
  • valve chamber is completely and uniformly loaded with fluid even though the individual annular structural elements are joined tightly together.
  • fluid flows toward both annular magnets, thereby improving the magnetic filtration effect relative to magnetic dirt particles.
  • this provides for a thorough and uniform flow through the filter ring, thereby ensuring that the filter ring is exposed to a uniform load of dirt particles.
  • an external coarse filter can also be provided, e.g. a sieve insert, which is placed inside the tubular housing.
  • the valve according to the invention can be designed as a so-called 2/2-way valve.
  • a through hole is provided in only one pole, emptying out in a seal seat on the valve chamber side.
  • This pole piece is preferably tightly bonded on the outside with the valve housing, e.g., press molded or soldered.
  • the other pole piece exhibits the fluid channels described above, so that fluid can continuously be relayed to the valve chamber over the side of this pole piece.
  • the spherical valve armature exhibits two stable end positions, one at each of the two pole pieces, wherein the valve seat of the through hole of the one pole piece is either closed or opened.
  • an intermediate space is situated between the exterior wall of the central tube and the interior wall of the valve housing, and connected with the valve chamber via the outside fluid channels.
  • This intermediate space is coupled with an inflow line in the case of a 3/2-way valve, e.g., by inserting a tube line into a corresponding hole of the valve housing and tightly bonding it there, e.g., through soldering.
  • a T-shaped or Y-shaped tubular housing is provided from the very outset before the internal structural components are assembled.
  • the two pole pieces with an annular magnet and guide, spacer or filter ring and, if necessary, sealing elements, can here be introduced together with the central tube into the tube housing, and fixed in a single assembly procedure. Only the coil then still has to be slipped over the straight, continuous portion of the tubular valve housing, and the valve is completed.
  • FIG. 1 is a longitudinal section through a 2/2-way valve according to the invention, and on
  • FIG. 2 is a longitudinal section through a corresponding 3/2-way valve.
  • Valve 1 according to FIG. 1 encompasses a tubular valve housing interspersed with a control coil 3 .
  • Adapter pieces here ensure the good fit and increased magnetic flux of the control coil of the valve housing 2 in the control coil 3 given deviations in the outside diameter of the valve housing 2 from the inside diameter of the control coil 3 .
  • Two permanent magnets 9 , 10 designed as annular magnets are slipped onto the pole pieces 5 , 6 until they hit the stop at the annular shoulders 7 , 8 .
  • the valve body 12 is made out of a magnetic or magnetizable material, and hence used directly as the valve armature.
  • the pole piece 5 incorporates a through hole 13 that empties out in what is here a spherical valve seat 14 , but which can also be designed differently, e.g. as a conical seat, inside the valve chamber 15 .
  • the opposing pole piece 6 exhibits only a blind hole 16 with a spherical seat 17 on the end side, which can also be differently designed, e.g. as a spherical seat, for the valve body 12 .
  • the outside of the pole piece 6 is provided with smoothened surfaces 18 , thereby forming fluid channels 19 between the pole piece 6 and the valve housing 2 at this location.
  • valve 1 All internal structural elements of the valve 1 are press molded between two peripherally running beads 20 , 21 in the valve housing 2 , and hence fixed in the axial direction.
  • the connecting tubes 22 , 23 are molded onto the valve housing 2 as a single piece, so that this location has no bonding site, and hence no sealing problems.
  • the fluid is supplied to the valve 1 according to FIG. 1 via the connecting tube 23 .
  • the fluid passes through the fluid channels 19 between the pole piece 6 and the valve housing 2 and enters into the area of the valve chamber 15 . It here first flows on the outside along the permanent magnet 10 , and then gets into the spacer ring 11 , which is permeable in both the radial and axial directions. As a result, the flow also passes to the opposing permanent magnet 9 .
  • the permanent magnets 9 , 10 have a smaller outside diameter relative to the inside diameter of the valve housing 2 , so that sufficient space remains between the permanent magnets 9 , 10 and the valve housing 2 for the flow of fluid, and for the accumulation of magnetic dirt particles.
  • the spacer ring 11 also serves as a mechanical filter element to trap nonmagnetic dirt particles in the fluid before they can penetrate inside the valve chamber 15 . At the same time, the spacer ring 11 provides a guide for the spherical valve body 12 .
  • the 2/2-way valve is closed, i.e. the valve body 12 rests on the valve seat 14 , and seals off the through hole 13 .
  • Actuating the control coil 3 makes it possible to switch the valve body 12 to the opposite position, in which it hits the spherical seat 17 , thereby opening the through hole 13 to the inside of the valve chamber 15 .
  • the fluid can flow via the through hole 13 all the way to the connecting tube 22 .
  • the permanent magnets 9 , 10 can be given very small dimensions by arranging them inside the valve housing 2 in direct proximity to the valve body 12 .
  • arranging the permanent magnets 9 , 10 in the area of the valve seat 14 or spherical seat 17 , i.e. in the area of the end position of the valve body 12 allows them to exert their forces particularly well, thereby ensuring a good sealing function or stable switch setting, even given magnets with comparatively small dimensions.
  • valve arrangement according to FIG. 2 essentially corresponds to the exemplary embodiment described above. The difference is that the valve according to FIG. 2 is designed as a 3/2-way valve.
  • the connecting tube 23 has inserted into it a central tube 24 extending all the way to the pole piece 6 , which is provided with a location hole 25 to accommodate the central tube 24 .
  • the location hole 25 in the pole piece 6 is extended to inside the valve chamber 15 by a through hole 26 .
  • a spherical or conical valve seat 27 is accommodated in the pole piece 6 in the outlet area, which is opened or closed alternating with the valve seat 14 , depending on the switch setting of the valve.
  • An intermediate space 29 connected to an inflow line 31 via a hole 30 results between the central tube 24 and the casing area 28 .
  • a sealing element 32 is also inserted into an annular groove 33 of the pole piece 5 and, as evident from an outer bead 34 , press molded or soldered.
  • the 3/2-way valve according to FIG. 2 has an inflow line 31 and two output lines.
  • One of the output lines is comprised of the connecting tube 22 as in the aforementioned exemplary embodiment, but the other output line is now formed by the connecting tube 23 , which served as an inflow line in the 2/2 way model.
  • Inflow takes place via the intermediate space 29 toward the fluid channels 19 .
  • the flow passes to the permanent magnets 9 , 10 and the spacer and guide ring 11 .
  • the permanent magnets 9 and 10 here also act as magnetic filter elements to hold back the magnetic dirt particles, while the spacer and guide ring 11 is designed as a filter ring permeable to fluid in a radial and axial direction.
  • the fluid gets inside the valve chamber 15 in this way.
  • the fluid can now escape either via the through hole 13 or, depending on the switch setting of the valve, via the through hole 26 .
  • the valve seat 14 is closed by the valve body 12 , while the valve seat 27 is open.
  • the fluid hence streams toward the output line 23 in this switch setting.
  • valve seat 27 is closed, and the valve seat 14 is opened at the same time, so that the fluid streams via the through hole 13 toward the connecting tube 22 .
  • the control coil 3 and permanent magnets 9 and 10 here operate exactly as in the aforementioned exemplary embodiment.
  • sealing element 32 care must be taken to establish as tight a seal as possible between the one pole piece 5 and the valve casing 2 .
  • the annular sealing element used to accomplish this is only an example. Flat press molding or soldering would also be possible. This type of arrangement would correspond to the exemplary embodiment depicted based on FIG. 1.
  • the central tube 24 must be sealed relative to the pole piece 6 in a corresponding manner. If required, a sealing element can here also be used in a manner not shown in any greater detail. In the embodiment according to FIG. 2, the central tube 24 abuts flatly, thereby resulting in a tight seal via press molding or soldering.
  • the central tube 24 can be fixed in both the axial and radial directions via press molding or soldering, which becomes evident based on the bead 20 abutting the central tube 24 .
  • care must be taken to ensure that the bead 20 does not abut around the entire periphery, so that a sufficient passage always remains open between the intermediate space 29 and the fluid channels 19 .
  • the depicted embodiments represent extremely compact structural designs that can be manufactured with an exceedingly small production expense, while ensuring a reliable long-term stability given a high tightness.
  • the reduced mass of the valve body 12 also decreases the respective impact pulse on the valve seats 14 , 27 , thereby resulting in a better wear resistance by comparison to previously known valves in addition to lower operating noise levels.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)
  • Valve Device For Special Equipments (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Details Of Valves (AREA)
  • Valve Housings (AREA)
US10/367,867 2002-02-19 2003-02-19 Bistable electromagnetic valve Abandoned US20030159454A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10206778.3 2002-02-19
DE2002106778 DE10206778A1 (de) 2002-02-19 2002-02-19 Bistabiles elektromagnetisches Ventil

Publications (1)

Publication Number Publication Date
US20030159454A1 true US20030159454A1 (en) 2003-08-28

Family

ID=27618758

Family Applications (3)

Application Number Title Priority Date Filing Date
US10/505,354 Abandoned US20050161098A1 (en) 2002-02-19 2003-02-19 Electromagnetic valve
US10/505,357 Abandoned US20050211316A1 (en) 2002-02-19 2003-02-19 Electromagnetic valve
US10/367,867 Abandoned US20030159454A1 (en) 2002-02-19 2003-02-19 Bistable electromagnetic valve

Family Applications Before (2)

Application Number Title Priority Date Filing Date
US10/505,354 Abandoned US20050161098A1 (en) 2002-02-19 2003-02-19 Electromagnetic valve
US10/505,357 Abandoned US20050211316A1 (en) 2002-02-19 2003-02-19 Electromagnetic valve

Country Status (9)

Country Link
US (3) US20050161098A1 (fr)
EP (4) EP1457723A3 (fr)
JP (1) JP2004036878A (fr)
KR (2) KR20030069116A (fr)
CN (3) CN1439833A (fr)
AT (2) ATE299569T1 (fr)
AU (2) AU2003218873A1 (fr)
DE (5) DE10206778A1 (fr)
WO (2) WO2003071175A1 (fr)

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WO2007025600A1 (fr) * 2005-07-27 2007-03-08 Schaeffler Kg Electrovanne hydraulique
WO2016083821A1 (fr) * 2014-11-26 2016-06-02 Martin Mcnestry Systèmes de soupape d'écoulement de fluide à commande électrique
US10132421B2 (en) 2014-09-04 2018-11-20 Kyb Corporation Solenoid and solenoid valve
EP3617571A1 (fr) * 2018-08-29 2020-03-04 BSH Hausgeräte GmbH Soupape et appareil domestique utilisant la soupape
CN113669461A (zh) * 2021-08-19 2021-11-19 浙江大学 一种双稳态电磁阀

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DE10360706A1 (de) 2003-12-19 2005-07-14 Aweco Appliance Systems Gmbh & Co. Kg Ventil und Verfahren zum Herstellen eines Ventils
DE102006022561A1 (de) * 2006-05-15 2007-11-22 Nass Magnet Gmbh Magnetventil
DE102011115115A1 (de) * 2011-10-07 2013-04-11 Festo Ag & Co. Kg Ventileinrichtung
CN102383770A (zh) * 2011-11-10 2012-03-21 西南石油大学 一种超稠油开采的掺稀注水处理多功能装置
DE102013215261A1 (de) * 2013-08-02 2015-02-05 BSH Bosch und Siemens Hausgeräte GmbH Magnetventil und dieses verwendende Kältemaschine
CN104373400B (zh) * 2013-08-12 2017-08-01 浙江弘驰科技股份有限公司 一种具有球面结构衔铁的板式快速开关电磁阀
CN104127124A (zh) * 2014-08-01 2014-11-05 佛山市顺德区美的电热电器制造有限公司 磁力阀、压力调节装置、烹饪器具及其上盖、压力调节方法

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WO2007025600A1 (fr) * 2005-07-27 2007-03-08 Schaeffler Kg Electrovanne hydraulique
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US7971607B2 (en) 2005-07-27 2011-07-05 Schaeffler Technologies Gmbh & Co. Kg Electromagnetic hydraulic valve
US10132421B2 (en) 2014-09-04 2018-11-20 Kyb Corporation Solenoid and solenoid valve
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AU2015352194B2 (en) * 2014-11-26 2020-07-02 Martin Mcnestry Electrically operated fluid flow valve arrangements
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CN113669461A (zh) * 2021-08-19 2021-11-19 浙江大学 一种双稳态电磁阀

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EP1476687A1 (fr) 2004-11-17
DE50300762D1 (de) 2005-08-18
ATE300006T1 (de) 2005-08-15
ATE299569T1 (de) 2005-07-15
CN1643284A (zh) 2005-07-20
EP1476687B1 (fr) 2005-07-20
EP1476686A1 (fr) 2004-11-17
DE10390683D2 (de) 2005-01-05
WO2003071175A1 (fr) 2003-08-28
JP2004036878A (ja) 2004-02-05
EP1457723A3 (fr) 2004-11-17
EP1336786A2 (fr) 2003-08-20
DE50300819D1 (de) 2005-08-25
AU2003218872A1 (en) 2003-09-09
EP1457723A2 (fr) 2004-09-15
EP1476686B1 (fr) 2005-07-13
WO2003071176A1 (fr) 2003-08-28
CN1643283A (zh) 2005-07-20
DE10206778A1 (de) 2003-08-28
CN1439833A (zh) 2003-09-03
KR20030069116A (ko) 2003-08-25
KR20030069844A (ko) 2003-08-27
AU2003218873A1 (en) 2003-09-09
DE10390648D2 (de) 2005-01-05
US20050211316A1 (en) 2005-09-29
US20050161098A1 (en) 2005-07-28

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