CN1242063A - Magnetostrictively actuated valve - Google Patents

Abstract

A valve structure depends on the axial extension actuated by an electromagnetic winding of an annular magnetostrictively core element (30) and is used for the start displacement of a rectangle seat valve member (35) carried in an annular sleeve of the core element. A first rigid accord pre-adding load (38) independently impels the seat valve member enter a closing sealing position at its valve closing wall, a second rigid accord pre-adding load (31) independently applies pre-adding stress to the annular magnetostrictively core element to make it enter a fixed reference adjacent surface in a valve chamber. The best material of the core is Rerfenor-D, the material can respond to the induced coupling excitation to generate strong extension. Before a flange couples with the seat valve member, the extended response closes a pretravel space and makes the seat valve member move out from a usual closing joint with the valve of the valve seat.

Description

Magnetostrictively actuated valve

Background of invention

The present invention relates to a kind of valve mechanism, wherein, depend on that coil (electromagnetism) excitation of a microscler magnetostriction iron-core element is used for driving the valve of a control flow rate, this valve is used for a pressure fluid from the control of flowing of a upstream source to an outlet, under the pressure that reduces for storing in the downstream or use.

Submit on September 21st, 1994, application number is 309, several embodiments of the magnetostriction valve that is specifically designed to the characteristic that having of spaceship show have been described in 776 the patent application of awaiting the reply, wherein, this valve must be the type of often closing type, and need a very high sealing force, under locking (that is valve closing) state, to provide reliable sealing and very low leakage.In any case the pressurized propellant gas that is used to handle must store, this depends on to have good (that is, very low) leak resistance under locking condition, and can make all valves of rapid-action to instantaneous demand.So, treat in the valve of indicated characteristic that emphasis considers be close, isolation, low-frictional force, mechanical structure is simple and size is little.The patent No. is 3,814,376 U. S. Patent or application number are 08/184, the magnetic of describing in 484 the application of awaiting the reply is pinned and the valve of magnetic drive has the required low characteristic of sewing of a valve closing state, but the time constant of valve driving (opening or closing) is greater than required value, and sealing force is less than required value.

To application number is 309, being disclosed in this and being cited of 776 the application of awaiting the reply, note at this: the embodiment of all announcements of described patent application depends on that one forms the central cylindrical iron-core element of magnetostriction materials of the part of an annular flux circuit, wherein, this loop checking installation has surrounded an excitation winding.One axial end of iron-core element relates to valve seat, another axial end prepares to drive driveshaft adjacency with it at any time, and driving the valve opening displacement of a valve member, this valve member is if it were not for just entering its closed position to cooperate with a valve seat under spring pressure like this.It is pre-loaded that belleville washer or belleville spring are used to axial force, and be used to all central parts being used for the loss of minimum friction and/or mechanical stagnation, but structure imagine the necessary complexity of going back than institute.In addition, all import partses and outlet member are used for the valve pocket district at an axial end of magnetostriction drive system.

Description of the invention

A purpose of the present invention provides a kind of improved valve mechanism with indicated characteristic.

One concrete purpose provides a valve mechanism, and this valve has the good sealing latch-up characteristic that can prevent that pressure fluid from sewing under it closes situation.

Another specific object is to utilize a kind of scheme of simply and small-sized structure basically to satisfy above-mentioned all purposes, and this scheme can be controlled at the propellant gas that stores under the high pressure, so that use when the flight location of a spaceship.

Also having a concrete purpose is to utilize a kind of structure to satisfy above-mentioned all purposes, this structure has a valve open and a time constant of closing rapidly under broad ambient temperature conditions, and can show little mechanical hysteresis effect inherently, and can provide a kind of fault of good valve locking of leakage of counter pressure fluid to prevent condition.

General purpose is to utilize better simply structure to satisfy above-mentioned all purposes, this kind structure can provide manufacturing Economy and can any sacrifice in performance.

The present invention realizes these purposes with a kind of valve mechanism, this structure depends on the axial elongation that the coil (electromagnetism) of the magnetostriction iron-core element of an annular drives, so that produce the unlatching displacement of the microscler valve member in the annulus that is carried at this iron-core element.The one first preload load that meets rigidity pushes this valve member the sealing station of its locking when valve closing independently, and the one second preload load that meets rigidity independently should annular magnetostriction fuse element be pre-stretched to a fixing benchmark supporting surface that has a valve body structure.The optimal material of existing fuse is Terfenol-D, and this material has a kind of strong elongation effect in response to (electromagnetism) induction coupling excitation.This elongation response sensitivity is enough to reach following purposes, promptly, (1) before a flange is matched with valve member, close a pretravel gap (pretravel clearance), and (2) makes valve member shift out the common valve closing position that it cooperates with valve seat by the flange cooperation.In all most preferred embodiments, the entrance and exit of this valve is located at the corresponding axially center of both ends of the surface of this valve body structure.

In this specification,, sometimes the central axis of this valve system is taken as for from a left side or entry end " (axis) of level " that extend to a right side or outlet end for the convenience of consulting.But, it will be appreciated that: a kind of " level " direction compared with for described application number be 309, " vertically " direction that all embodiments of 776 the patent application of awaiting the reply represent is more unimportant, because under any circumstance do not rely on any relation of instantaneous gravitational vectors at that valve operation.

Brief description of drawings

Describe all preferable and illustrated embodiments in detail below in conjunction with all accompanying drawings, wherein:

Fig. 1 is one first a valve embodiment's of the present invention longitudinal sectional view, has represented the closed condition of this valve;

Fig. 2 is identical with Fig. 1, has represented an opening state of this valve, has wherein schematically represented the flowing of excitation flux of electromagnetic induction;

Fig. 3 and Fig. 1 are similar, have represented an amended structure and a closed condition thereof of this valve;

Fig. 4 is identical with Fig. 3, has represented the starting state of valve shown in Figure 3;

Fig. 5 is and similar another view of Fig. 1, represents another modification structure; And

Fig. 6 is and the similar another view of Fig. 1, has represented that one revises structure once more.

Describe in detail

See the embodiment shown in Fig. 1 and 2 earlier, the represented valve body 10 that the present invention includes, this valve body 10 comprises: a upstream cup part 11 and a stack up label are all ring-type components downstream 19,21 and 23 of " 14 ", upstream cup part 11 wherein has a central inlet connected element 12 that extends to the left end wall 13 of its sealing, and all ring-type components downstream 19,21 and 23 have a central outlet connected element 15 that extends to the right-hand member wall 16 of its sealing.All parts 11,16,19 and 21 of this valve body are made by ferromagnetic material, and parts 33 are inner sleeves of being made by nonferromagnetic material.Parts 19 are skirt sections of an outer sleeve or valve body 10 and have an intussusception to be overlapped on the upstream extremity that flange is arranged on the valve body upstream components 11 inwardly; Represented valve body parts 11 is connected by a weldment 17 along circumference with 19, and overlapping connecting part is sealed by an elastic O-ring 18 in addition.Ingress filtering spare 12 ' in hole 12 has guaranteed that the particle that is carried by the inlet pressure fluid can not injure the operation of this valve.

More precisely, characteristics in the outer sleeve of valve body part 14 or skirt section 19 are counterbores that place or locate that are used for for a winding or electromagnet coil 20.Inner sleeve 33 provides the axially support of winding 20, and downstream annulus 21 has sealed this counterbore to keep winding 20 vertically.Downstream end wall part 16 is matched with the inner of the counterbore in the annulus 21, and forms a ring-shaped valve seats structure at its upstream end, and this valve seat construction has surrounded the passage of an outlet 15 and protruded from a ring main concave surface (manifolding concavity).One or more radial groove 25 will enter air communication to house steward 24.

For the present invention for importantly: end cap wall 13,16 should connect securely, with the inside axial compression load of all valve parts of standing to wait to describe.By cooperation place, and realize this point by the weld part 27 that provides an end wall member 16 to engage along excircle with ring part 21 along excircle welding portion 19,21.But, in the optimum scheme shown in Fig. 1 and 2, the telescopic auxiliary section that parts 19,21 have only is one axially extended, sealed up by an elastic O-ring 26, the selection of the material of inner sleeve not only will be according to its non-ferromagnetic characteristic, and will be according to itself and the compatibility of the ferromagnetic material of adjacent parts 11,21 vertically, so that can weld.Suitably, the material of ferromagnetic valve body parts 11,19,21,16 is the magnetic substance stainless steel, the material of non magnetic sleeve 33 is a kind of Austenitic Stainless Steel (as 304L), and it welds along excircle at axial two ends, as what in Fig. 1 and 2 the joint of parts 11 and 21 is represented with thicker line.After such welding of sleeve 33, a single continuous hole is determined, and is finish grinded preferably in sleeve 33 soldered backs with before the assembling of all internal valves assemblies (waiting to describe) and downstream end cap part 16.Be understandable that: in case these internal valves assemblies are assembled, and, in end cap part 16 after 27 places are welded in annulus 21, this continuous accurately machined hole in the parts 11,33,21 of welding set up one vertically direct continuous permanent end cap wall 13 and 16 interconnection.

According to a feature of the present invention, in the continuous hole of parts 11,33 and 21, kept the cylindrical annular sleeve or the fuse 30 of magnetostriction materials, gap is closely preferably arranged; And, be located in valve body part 11 interior springs 31 that meet rigidity and be with (with preferably ferromagnetic) plate 32 of crossette the compressive force of a pre-stretching to be put on the upstream end surface of magnetostriction annulus 30 by one.According to the electric excitation of coil 30, parts 30,32 are very loose with the cooperating of the continuous hole of having described of parts 11,33,21, can make parts 30 magnetostriction elongations.As the clearlyest finding out from Fig. 2, the annular circulation of the excitation of coil 20 by having set up magnetic flux with the inductive of magnetostriction part 20, this the circulation promptly along an inner shaft to branch road a, pass through the branch road b of radial outward, the axial branch road c of an outside again, and through radially a branch road d inwardly, the result finishes and returns circulation.

One or many cannelures 34 on plate 32 and circumference fuse 20 align with one or many grooves 25 of valve body closure wall 16, are communicated with to provide from 12 pressure fluids to house steward 24 (as gas) that enter the mouth.

One microscler cylindrical valve member 35 is directed to supporting, so that can do limited length travel from the downstream end that its length that is contacted with valve seat construction 22 is closed.Preferably, be coated with a coating on this downstream end of this valve member, perhaps cover an elastic material, as the sealing pad (closure pad) or the coating 30 of nylon or special teflon.The characteristics of this valve member or spool 35 find expression in a radial flange structure 37 at its upstream end, that be used for accepting to meet by crossette the rigidity pre-applied force, and this flanged structure is provided with a helical spring 38, and this spring housing is loaded in the prestressed spring 31 and is positioned valve body closure wall (body-closure wall) 13 independently.

The valve situation of normal pass shown in Figure 1 is with slightly and is manifested axial clearance or pretravel franchise δ large ₁, guaranteeing the self contained function of spring 38, so as fault-free make seat valve core end 36 be matched with the annular rim portion of valve seat 32.Enter a valve opening axial clearance δ can also expecting that the magnetostriction elongation is lifted this poppet valve gating element 30 from valve seat 22 ₂Before, the magnetostriction elongation that this pretravel franchise must core sub-element 30 overcomes, with a sufficient electric excitation of response winding 20.So, total elongation of element 30 is δ ₁With δ ₂Sum; But,,, consider that when flow velocity was per second 0-12mg, the numerical value of these axial clearances was actually little for the situation of xenon as pressure fluid for purposes in spaceborne appointment.After considering this situation of the valve rod of poppet valve element 35 in use and the temperature that magnetostriction fuse element 30 will be in substantially the same stable state, after suitable selection, the scope (that is hot stroke error) in pretravel gap can be reduced to and be almost 0.Now, mention and preferably use a kind of magnetostriction material, this kind material is known Terfenol-D as fuse element 30; This is a kind of alloy of terbium, dysprosium and iron of special preparation, and this material is by the Etrema Products in Iowa,U.S.A state, and Inc. provides.Preferably, the temperature coefficient of expansion of the material of poppet valve element 35 identical with fuse element 30 basically; For the use condition of the Terfenol-D of appointment, being complementary substantially of temperature desired coefficient is because with the material of titanium alloy T i-6Al-4V as valve member 35, thus effectively balance the different thermal expansion of parts 30/35, and with pretravel franchise δ ₁Be reduced to and be almost 0.

Situation as ferromagnetism valve body parts 11,14 (19,21 and 16) is the same, and plate 32 also is fit to be made by the magnetic substance stainless steel.Can there be the coating of a special teflon or other low friction material in the hole of plate 32, so as can be vertically with respect to the upstream of seat valve core 30 (flange is arranged) end slide displacement.In addition, preferably winding 20 itself is a sub-component, and it is sealed in the suitable plastic in advance, and be defined as a whole cylindrical annular sleeve, have all end wall surface that accurate spacing separates, also have a hole, this Kong Youyi is for the tight supporting auxiliary section of non magnetic sleeve 33.

Modification shown in Fig. 3 and 4 is more closely corresponding to the embodiment shown in Fig. 1 and 2, so as possible, two embodiments adopt identical numbering as far as possible.The difference of Fig. 3 and 4 li is, the length of valve body parts 19 has been prolonged slightly, in ferromagnetic valve body parts 11 and 19, to provide a zone to make fuse element 30 overlapping at axial end, plate 32 needs not to be the magnetic substance stainless steel in this case, at this moment, shown in Fig. 4 signal, after winding 20 excited target, the circuit of magnetic flux can avoid relying on plate 32.

In description before this, what can recognize is the valve body parts of being mentioned 11 and 14 that is rendered as sleeve shape or other energy fit shapes, be for convenience's sake, main point wherein is: after winding 20 excited target in being closed in annular flux paths, magnetostriction fuse element 30 will be the axially-extending part of the annular flux paths partly set up through all valve bodies.

Purpose for the machinery assembling, the sensing of the central axis of upstream valve body component 11 is vertical deliberately, can present a skirt section that is open upwards like this, so that axially place spring 31,37 independently and can coaxially locate these springs by all shoulders that radially separates of the structure 40 of the annular flute profile of the inwall of end cap 13.This skirt section that is open upwards is a sub-component (welding is located in " 41 " in Fig. 5) that comprises the external valve body component 19 of being lived by permanent weldering; Can know the restriction site vertically of the sub-component of finding out such parts 11 and 19 from Fig. 5, wherein, valve body parts 19 ' has inwardly a flange 39 radially, and before " 41 " located welding, this flange is the axial restraint face when adjacent as the skirt section of it and valve body parts 11.In this, parts 19 can intentionally together be assembled with winding 20, sleeve 33 and body coil component (body-ring part) 21 in advance, and by the sleeve 33 permanent company headquarters's parts 19 and 21 that weld, so, presented a clean cavity that opens wide, spool 35 and flange 37 can be inserted in this chamber, so as its to the crossette that the cooperates location of spring 38, plate 32 also can insert in this chamber, so that it is to locating with the crossette that cooperates of spring 31.At this moment, it is unimpeded being used for iron-core element 30 is enclosed within on the valve rod of spool 35 and places the annular portion 21 of aligning and the passage of sleeve 33.All the other things to be done be used for that downstream end cap body portion 16 inserted the counterbore 42 of ring parts 21 and apply axial compressive force make parts 16 on the bottom of this counterbore 42 fully sealing relationship be achieved, spring 31 and 38 will and apply weld seam part 27 by pre-loaded load at that point, to finish a kind of permanent assembling of this valve.

Fig. 6 is used for illustrating that non magnetic sleeve 33 can be an independent plastic assembly; But, preferably making winding be tied means of press seals (as mentioned above) has in the cavity (not shown) of a cylindrical form interior surface one, make sleeve 33 be manufactured into the characteristics of the integral part of sealing winding, this sleeve has an accurate hole, and this hole can provide the cylinder bodily form supporting of the low-frictional force of elongation vertically of fuse element 30.Certainly, plastics are meaned as the material of sleeve 33: under the prestressing force and preload situation of the expection of spring 31,38, the sleeve 33 among Fig. 6 can not be relied on the connection set for parts 19 and 21; So in Fig. 6, it is that an outer circumferential weld seam through part 19,21 overlap joint to each other cooperates is realized that the end cap wall is connected with 16 axial stiffness 13.

Fig. 6 also is used for representing: be subjected to the entrance and exit of the pressure fluid flow of valve control to be present in a single axial end of this valve simultaneously, thereby needing avoid all grooves 25/34 shown in Fig. 1 to 5.Specifically, in Fig. 6, shown end cap 16 has an inlet channel 25 that directly is communicated with circulating line 24, and this circulating line 24 has surrounded ring-shaped valve seats structure 22.Its structure, assembling and operation are identical with Fig. 5 and other all embodiments' description.

Described structure will satisfy above-mentioned all purposes, and the configuration that provides one of all elements part to simplify, and these configurations make them be beneficial to assembling and work reliably.Particularly, gap that is necessary and preload automatically form and the assembling method that is used for having described, and do not need further adjusting.Be noted that especially: behind the spring suit of two independent operations a radial clearance is arranged to each other; They each produce compression benchmark (compressive reference) from single-end tegmental wall 13; Open under the condition in the length of valve, the other end tegmental wall 16 of valve body or valve seat 11,14 provides the reaction benchmark that is used for prestressing force fuse element 30 and valve seat construction 22 (reactive reference).After winding 20 was by excitation sufficiently, the magnetostriction elongation of fuse element 30 was jack effects, and wherein, iron core member 20 has and described another end cap 16 reference level of adjacency (axial-abutment reference) vertically; Be matched with the flange end of seat valve core in core member 20, the power of the preload of antagonism spring 38 " is mentioned " seat valve core 35 by vertically, and this valve has been opened in this jack effect.

Claims (27)

1. an electricity is operated normal pass type valve mechanism, it comprises: the shell that is roughly straight tube shape of a ferromagnetic material, each axial end at described shell has a closed-wall, described shell has entrance and exit spaced apart and one of them passes a described closed-wall at the center, and a ring-shaped valve seats structure is positioned on the internal surface of a described closed-wall and surrounds a described aperture; The cylindrical annular sleeve of one magnetostriction materials, it surrounds described valve seat construction and is adjacent to a described closed-wall under the prestressing vertically meeting; One electric winding, it is included in the described shell and surrounds the cylindrical annular sleeve of described magnetostriction materials; One seat valve chipware, it is guided vertically in the cylindrical annular sleeve of described magnetostriction materials, described seat valve chipware can be used to the throttle down with described valve seat construction acting in conjunction in the structure of one axial end, in addition, described poppet valve chipware has been set up a flanged structure at the relative axial end of one, being used for making the final magnetostriction elongation that produces vertically of described cylindrical annular sleeve after described winding is energized, thereby the described seat valve chipware of withdrawing is thrown off and the cooperating of valve seat.

2. according to the valve mechanism of claim 1, it is characterized in that, placed one first helical spring to act between another closed-wall and the described magnetostriction materials annulus, be used for described meet prestressing axial in abutting connection with the time with magnetostriction materials prestressing; And, one second helical spring is sleeved in described first helical spring and radial clearance is arranged between the two, between the flange end that acts on described another closed-wall and described seat valve chipware, be used for direction along throttle down vertically to described seat valve chipware preload with described valve seat construction acting in conjunction.

3. according to the valve mechanism of claim 1, it is characterized in that described shell comprises first and second cup-like portion that have overlapping vertically skirt section separately, wherein a Wai Bu part has the cavity that opens wide that holds described winding inwardly.

4. according to the valve mechanism of claim 3, it is characterized in that, an inner described skirt section is contained first between the cylindrical annular sleeve that acts on another described closed-wall and described magnetostriction materials and is axially met the prestressing device, be used for a described closed-wall in abutting connection with the time set up the prestressing force of described cylindrical annular sleeve.

5. according to the valve mechanism of claim 4, it is characterized in that, the annular disk of one ferromagnetic substance is captured between cylindrical annular sleeve of described magnetostriction materials and described first prestressing apparatus vertically, and described dish comprises that a crossette structure is matched with described first pre-stretching device with centralized positioning.

6. according to the valve mechanism of claim 4, it is characterized in that described first prestressing apparatus that axially meets is a helical spring.

7. according to the valve mechanism of claim 4, it is characterized in that the inner piece in described skirt section comprises second a prestressing spring that acts between the flange end of another described closed-wall and described seat valve chipware.

8. according to the valve mechanism of claim 7, it is characterized in that the flange end of described seat valve chipware has a crossette structure to be matched with the described second prestressing spring with centralized positioning.

9. according to the valve mechanism of claim 4, it is characterized in that, the cylindrical annular sleeve of described magnetostriction materials extend vertically and with inwardly the annular flange flange structure overlap joint radially in a described skirt section of outside, also set up continuous complete annular flux circuit to center on described winding, and make the syntople of setting up prestressing between a described cylindrical annular sleeve and the described closed-wall through described outer skirt.

10. according to the valve mechanism of claim 4, it is characterized in that, the cylindrical annular rim of one ferromagnetic substance is axially disposed between prestressing device and the cylindrical annular sleeve of described magnetostriction materials, and with a described skirt section of outside one radially inwardly annular flange flange structure overlap vertically, setting up continuous complete annular flux circuit, and make between a described cylindrical annular sleeve and the described closed-wall and set up prestressed syntople around described winding and through described outer skirt.

11. the normal pass of an electricity operation type valve mechanism, it comprises: the shell that is roughly straight tube shape of a ferromagnetic material, and it has a longitudinal center's axis that extends between upstream extremity and downstream, have one to have the closed-wall in aperture at each axial end of described shell; The toroidal core element of the cylindrical mangneto telescopic material of one length, this element by described outer casing supporting and in this shell with described axis totally one center, and, act between upstream end wall and the described fuse element with vertically to described fuse element preload and be adjacent to first compliant device of described downstream end wall with prestressing continuously; One microscler seat valve member, it is led by this element in described fuse element, and have at its upstream end one radially with the radial flange structure of the upstream extremity of described fuse element overlap joint, and, act between upstream end wall and the described poppet valve member, be used for along the direction that becomes the sealing relationship of valve closing with closed-wall in the fenestrated of the downstream of described shell, independent and continuously to second compliant device of described seat valve member preload vertically; One electric excitation winding, it is kept to become the induction coupled relation with described fuse element by described shell; And, ferromagnetic device, all parts that it comprises described shell are used for finishing an annular magnetic path that surrounds described winding with described fuse element, thus a magnetostriction elongation that produces described fuse element, and the open valve displacement that produces described seat valve member through described flanged structure.

12. the valve mechanism according to claim 11 is characterized in that, described first and second compliant device are radially spaced apart and the independently helical spring of nested relationship in an overlapping each other.

13. the valve mechanism according to claim 12 is characterized in that, described upstream end wall has all inner crossette structures, and they lay respectively at all adjacent end of described spring and be radially spaced apart.

14. the valve mechanism according to claim 12 is characterized in that, an annular slab member that is arranged on vertically between described iron-core element and described first spring has a crossette, is used for making described first spring concentrically to locate.

15. the valve mechanism according to claim 14 is characterized in that, described annular slab is made by ferromagnetic substance, and forms an intact part of described annular magnetic path.

16. the valve mechanism according to claim 11 is characterized in that, the material of the material of described seat valve chipware and described fuse element has substantially the same expansion coefficient.

17. the valve mechanism according to claim 11 is characterized in that, the material of described magnetostriction fuse element is the alloy that a kind of terbium, dysprosium and iron are formed.

18. the valve mechanism according to claim 11 is characterized in that, the material of described magnetostriction fuse element is Terfenol-D.

19. the valve mechanism according to claim 17 is characterized in that, the material of described seat valve chipware is a titanium alloy.

20. the valve mechanism according to claim 19 is characterized in that, titanium alloy is Ti-6Al-4V.

21. valve mechanism according to claim 11, it is characterized in that, the scale of described fuse element and described poppet valve member should make under the normal off status of described valve, forms at least some axial pretravel gaps between described flange and described iron-core element.

22. the valve mechanism according to claim 11 is characterized in that, described downstream end wall has the ring-shaped valve seats that a balance seat valve cooperates, and is used for setting up the normal off status of described valve.

23. the valve mechanism according to claim 22 is characterized in that, the downstream of described seat valve chipware has been carried an elastic material, is used for becoming valve closing to cooperate with the part of described closed-wall in the downstream of described shell.

24. the normal pass of electricity operation type valve mechanism, it comprises: the shell that is roughly straight tube shape of a ferromagnetic material, this shell has longitudinal center's axis, each axial end at described shell has a closed-wall, and one of them described closed-wall has one at its upstream end and between the downstream and be centrally located in the discharge passage of described central axis; A described closed-wall has a total internal surface radially, and (i) upstream extremity of a ring-shaped valve seats structure and described passage is total to the center, and (ii) altogether in heart surround the annular manifold groove of described valve seat construction, an and (iii) inlet channel that is communicated with described total tube seat; The cylindrical annular magnetic core element of the magnetostriction materials of one length, its is total to central axis ground and is positioned in the described shell and by its supporting, and, act between another described end wall and the described fuse element with vertically to the preload of described fuse element and be adjacent to first compliant device of a described closed-wall with prestressing continuously; One microscler seat valve member, it is positioned at described fuse element and by its supporting, it has and is used for the coefficient end of described ring-shaped valve seats structure with in a radial flange structure of its other end, described radial flange structure radially is overlapped in described fuse element, and, act between described another end wall and the described seat valve member, be used for along the direction that becomes the valve closing relation with described ring-shaped valve seats structure, independent and continuously to second compliant device of described poppet valve member preload vertically; One electric excitation winding, it is kept to become the induction coupled relation with described fuse element by described shell; And, ferromagnetic device, all parts that it comprises described shell are used for finishing an annular magnetic path that surrounds described winding with described fuse element, thus a magnetostriction elongation that produces described fuse element, and the open valve displacement that produces described seat valve chipware through described flanged structure.

25. the normal pass of electricity operation type valve mechanism, it comprises: the housing parts that is roughly straight tube shape of a length, this housing parts have longitudinal center's axis and have all the closed end wall spaced apart that limits the cylindrical cavity of a length with described housing parts; Described housing parts comprises the intermediate annular part of a non-ferromagnetic metallic material, this part is welded in its relative end on first and second annular portions of ferromagnetic material along excircle, and all described annular portions couple together all described closed end walls vertically each other securely; One of them described closed end wall has one at its upstream end and between the downstream and be centrally located in the discharge passage of described central axis; A described closed end wall has a total internal surface radially, and (i) upstream extremity of a ring-shaped valve seats structure and described passage is total to the center, and (ii) altogether middle heart is surrounded the annular manifold groove of described valve seat construction, and described shell has an inlet channel that is communicated with described total tube seat; The cylindrical annular magnetic core element of one long magnetostriction materials, it is positioned in the described shell and by its supporting, and coaxially overlapping with described intermediate portion, and is adjacent to a described closed end wall with axial reference level; And, in the described cavity and act between another described end wall and the described iron-core element with vertically to the preload of described fuse element and be adjacent to first compliant device of a described closed end wall with prestressing continuously; The magnetic core element of the cylindrical annular magnetostriction materials of one length, this element and described central axis coaxially are positioned at described shell and by its supporting, and, act between another described end wall and the described iron-core element, be used for being adjacent to a described closed-wall vertically to first flexible apparatus of described fuse element preload with prestressing continuously; One microscler seat valve member, it is positioned at described iron-core element and by its supporting, it has and is used for the coefficient end of described ring-shaped valve seats structure with in a radial flange structure of its other end, described radial flange structure radially is overlapped in described fuse element, and, act between described another end wall and the described seat valve member, be used for along the direction that becomes the valve closing relation with described ring-shaped valve seats structure, independent and continuously to second compliant device of described poppet valve member preload vertically; One electric excitation winding, it is kept to become the induction coupled relation with described fuse element by described shell; And, ferromagnetic device, all parts that it comprises described shell are used for finishing an annular magnetic path that surrounds described winding with described iron-core element, thus a magnetostriction elongation that produces described iron-core element, and the open valve displacement that produces described seat valve chipware through described flanged structure.

26. the valve mechanism according to claim 25 is characterized in that, inlet channel is characteristics of the other end closed-wall, this passage and described total tube seat internal communication.

27. the valve mechanism according to claim 25 is characterized in that, inlet channel is characteristics of a described closed end wall, and this passage is communicated with described total tube seat.

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