CN100366923C - Fluid control device - Google Patents
Fluid control device Download PDFInfo
- Publication number
- CN100366923C CN100366923C CNB2004100849289A CN200410084928A CN100366923C CN 100366923 C CN100366923 C CN 100366923C CN B2004100849289 A CNB2004100849289 A CN B2004100849289A CN 200410084928 A CN200410084928 A CN 200410084928A CN 100366923 C CN100366923 C CN 100366923C
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- support projection
- cover
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Abstract
The present invention discloses a fluid control device, wherein one end surface of an encasing is provided with coil supporting projecting portions, and the other end surface of the encasing enables a coil portion to press to the coil supporting projecting portions through a compressing clamp under the condition that the other end surface of the encasing is supported by a supporting clamp; each coil supporting projecting portion generates deformation. The fluid control device comprises a clamp supporting projecting portion on the other end surface of the encasing, and thus, the supporting clamp only contacts the clamp supporting projecting portion. When a contact surface formed by contacting the supporting clamp and the clamp supporting projecting portion is more narrow, the present invention even can easily increase the precision of a plane surface under the condition of resin moulding; when the precision of a plane surface of the clamp supporting projecting portion is improved, the supporting clamp needs not to be adjusted so as to match with the encasing, such as ripples of the traditional encasing, and thus, the supporting clamp is easy to produce.
Description
Technical field
The present invention relates to a kind of fluid control device, wherein, fluid passage opens and closes by solenoid valve.For example, the present invention is preferably applied to a kind of anti-lock braking system anti-lock braking system actuator of (hereinafter being called as ABS).In this anti-lock braking system, by increasing and reduce the possibility that the vehicle braked hydrodynamic pressure is avoided the locking wheel.
Technical background
In traditional ABS actuator, the fluid passage that brake fluid flows through forms in housing, realizes opening with closed by solenoid valve simultaneously.And solenoid valve remains between the cover (lid just) that housing and resin make.Cover is provided with the projection (hereinafter being called as the coil support projection) of support coils, and the coil support projection protrudes to the edge section of yoke, thereby touches with its side edge.With coil height, promptly the distance between the yoke end face on surface of contact (being reference level) and housing one side is adjusted to a predetermined value (as Japanese Patent Laid-Open Publication No.2002-243056) by extruding coil projection.
Coil height is adjusted before solenoid valve remains between housing and the cover.Especially, as shown in Figure 7, under the situation that cover 8 is supported by support fixture 101, make the punch 104 and yoke 43 adjacency of compressing fixture 103.Then, yoke 43 is pressed towards a side of coil support projection 81, contacts with datum plate 102 up to compressing fixture 103, and at this moment coil support projection 81 produces distortion.
Yet, in above-mentioned traditional ABS actuator, because cover 8 is moulded resin products, so ripple (recessed with protruding) on cover 8 and support fixture 101 surface of contact 89, can occur.In other words, the plane precision of cover 8 is not high.Therefore, before cover 8 was by compressing fixture 103 extruding, the contact surface 89 of cover 8 and the contact surface of support fixture 101 were difficult to mutual even contact.Therefore, cover 8 bends when being subjected to the extruding of compressing fixture 103, and it returns to original shape when pressure loading disappears.This bending of cover 8 causes the inaccurate of coil height with recovery.
Meanwhile, in resin molded, it is very difficult adjusting the plane precision that molded die (hereinafter referring to pattern) improves whole big surface.Therefore, the someone attempts just can reduce the bending of cover 8 like this when the cover pressurized, thereby the contact surface of cover 8 and support fixture 101 will contacting as far as possible closely by adjusting the waveform that support fixture 101 mates cover 8.Although so attempt, adjustment support fixture 101 and being not easy on the whole contact surface of itself and cover 8.
Summary of the invention
The objective of the invention is easily to make the support fixture that is used to adjust coil height.
In order to solve aforementioned technical problem, the invention provides a kind of fluid control device and comprise: a plurality of solenoid valves, each solenoid valve comprise a coiler part, wherein, coil is accommodated in the yoke that magnetic material makes, and when electric current was applied to coil, described coil can produce magnetic field; A housing that is provided with fluid passage, described fluid passage opens and closes by solenoid valve; A cover, thus described cover is cooperated with described housing and is kept described solenoid valve; A plurality of coil support projections, described coil support projection is positioned on the end face of cover, protrude from an end face of cover, and with the coiler part adjacency, under the state of the supported fixture support of another end face of cover, by coiler part is pushed to the coil support projection, each coil support projection deforms; With a plurality of fixture support projections, described fixture support projection is positioned on the cover other end, protrude from the cover other end, and with the support fixture adjacency.
Furtherly, according to an aspect of the present invention, the projection (below be called as the fixture support projection) that is used for support fixture is set at the other end of cover, rather than is arranged on the end face that has the coil support projection.The fixture support projection contacts from the end face protrusion of cover and with support fixture.
According to this structure because the fixture support projection forms the protrusion shape, so support fixture only and the fixture support projection of cover end face contact.In other words, have only the very narrow zone of cover to contact with support fixture.As mentioned above, because the part that contacts with support fixture is very narrow, so, be easy to adjust pattern and improve plane precision even under the situation of resin moulded parts.Therefore, making the cover that has high plane precision fixture support projection just has been easy to.And, because the raising of fixture support projection plane precision just there is no need so the adjustment support fixture mates cover ripple (as in traditional cover).Like this, making support fixture just has been easy to.
In addition, preferably, the section area of each fixture support projection is bigger than the section area of coil support projection.
According to this structure, in the time of might being limited in coil height and adjusting because the distortion of the fixture support projection that pressure loading causes, thereby improved the adjustment precision of coil height.
And preferably, when the direction of pushing coiler part from compressing fixture was seen, coil support projection and fixture support projection were overlapped.
According to this structure, when adjusting coil height, near the bending of the cover the coil support projection is restricted, so, can further improve the degree of regulation of coil height.
In addition, preferably, when the direction of pushing coiler part from compressing fixture was seen, fixture support projection and coil support projection were coaxial arrangement.
According to this structure, when adjusting coil height, near the bending of the cover the coil support projection has obtained more reliable restriction, so also can further improve the degree of regulation of coil height.
Description of drawings
From detailed description, will appreciate that more fully to other purposes of the present invention, characteristic and advantage below in conjunction with accompanying drawing.In these accompanying drawings:
Fig. 1 has shown the braking device line construction that adopts one embodiment of the invention;
Fig. 2 is the partial sectional view according to this embodiment's ABS actuator;
Fig. 3 is the sectional view of Fig. 2 of dissecing of D-D along the line;
Fig. 4 A is the plan view of cover, and Fig. 4 B then is the planimetric map of Fig. 4 A;
Fig. 5 is a sectional view, the figure illustrates the adjustment process of the coil height of the supercharger control valve among Fig. 2, and wherein S1 represents upside, and S2 represents downside;
Fig. 6 is the amplification view of F part among Fig. 5;
Fig. 7 is the sectional view that has shown traditional supercharger control valve coil height adjustment process, and wherein S1 represents upside, and S2 represents downside;
Fig. 8 is the amplification view of G part among Fig. 7.
Embodiment
The invention will be further described for each embodiment in the reference drawing.After this, referring to figs. 1 to Fig. 6 one embodiment of the invention is made an explanation.
Fig. 1 has shown a kind of line construction of braking device, and described braking device has adopted ABS actuator (that is fluid control device) according to an embodiment of the invention.
As shown in Figure 1, master cylinder 1 and wheel cylinder 2 interconnect by brake-press lead A.Brake fluid by brake-press lead A from master cylinder 1 one effluents to wheel cylinder 2 one sides.Brake-press lead A is provided with a supercharger control valve 3, the state that described supercharger control valve 3 can control brake pipeline A open and close.Notice that supercharger control valve 3 comprises a safety check 31, described safety check only allow brake fluid from wheel cylinder 2 one effluents to master cylinder 1 one sides.According to the present invention, supercharger control valve 3 is equivalent to solenoid valve, and its details will be described later.
The downstream side of supercharger control valve 3, promptly a side of the wheel cylinder 2 of close brake-press lead A is connected to brake-press lead B, and described brake-press lead B is connected to cistern 4.Brake-press lead B is provided with a pressure reduction control valve 5, the state of described pressure reduction control valve 5 energy control brake pipeline open and closes.Pressure reduction control valve 5 is not opened when applying normal brake application.Decompression phase in the ABS control procedure, pressure reduction control valve is opened, and so that the brake fluid among the brake-press lead A is discharged in the cistern 4, can reduce the pressure of wheel cylinder like this.
In addition, the upstream side of supercharger control valve 3, promptly a side of the master cylinder 1 of close brake-press lead A is connected to cistern 4 by a brake-press lead C.Described brake-press lead C is provided with one can suck and discharge the pump 6 that is discharged into the brake fluid in the cistern 4, thereby can allow brake fluid to be back to brake-press lead A.
Fig. 2 is the partial sectional view of ABS actuator structure.Among Fig. 2, cistern 4 (see figure 1)s and pump 6 (see figure 1)s all are accommodated in the aluminium casing 7.Supercharger control valve 3 and pressure reduction control valve 5 also come on the side surface of housing 7.In addition, the cover 8 usefulness screws 9 made of resin are fastened on the housing 7.Supercharger control valve 3 and pressure reduction control valve 5 are maintained between housing 7 and the cover 8.
The lid 12 that holds substrate 10 and motor-drive circuit is connected to cover 8.In addition, the terminal 42 of stretching out from each coil of supercharger control valve 3 and pressure reduction control valve 5 is soldered on the substrate 10 at welding portion 11.Notice that cover 8 and lid 12 are all made by resin such as PBT and nylon.
Fig. 3 is Fig. 2 D-D side cross sectional view along the line, shows when supercharger control valve 3 is arranged in the ABS actuator casing 7 its sectional view.Below, will describe the structure of supercharger control valve 3 referring to Fig. 3 in detail.
Among Fig. 3, housing 7 is provided with a recess part 71 that is used to assemble supercharger control valve 3.Recess part 71 constitutes and can communicate with the brake-press lead A of setting in the housing 7.Especially, the brake-press lead A1 in supercharger control valve 3 upstreams of brake-press lead A is connected to master cylinder 1, and the brake-press lead A2 in supercharger control valve 3 downstreams is connected to wheel cylinder 2.Notice that according to the present invention, brake-press lead A1 is corresponding with fluid passage with brake-press lead A2.
Axle 33 is configured as cylindricality and is made by nonmagnetic metal (as stainless steel).One side of the end portion on the base 34 of axle 33 is protruded to gap 326 from the guide hole 324 of guide rail 32.Spherical valve member 331 is welded in the far-end of end portion.
In addition, base 34 is provided with an alternate path 343 parallel with first path 341.Alternate path 343 is connected the gap in the guide rail 32 326 with brake-press lead A1.In addition, on brake-press lead A1 one side, alternate path 343 end portion are provided with a taper second valve seat 344.Ball check valve 31 contacts with second valve seat 344 or separates.
And the piston that roughly is column 38 that magnetic material is made is installed on one side of sleeve 37 bottom surfaces.Piston 38 in sleeve 37 slidably and can contact with sleeve 37 bottom surfaces.When piston 38 is run into sleeve 37 bottom surfaces, piston can not be again along among the figure upward to slip.
The spring 39 that axle 33 is positioned between axle 33 and the substrate 34 is pressed to a side of piston 38.Axle 33 and piston always abut against each other, and make them operate with regard to one.Notice that axle 33 and piston 38 constitute a movement parts of moving with the coil current break-make (back will be spoken of).
Terminal 42 (see figure 2)s are stretched out and are welded to substrate 10 (see figure 2)s from coil 40.Therefore, electric current is added on the coil 40 by terminal 42.
And the yoke that magnetic material is made is arranged at the periphery of spool.Cup-shaped substantially yoke 43 comprises column part 433 in an outer cylinder part 431, the edge section 432 and.Edge section 432 extends internally along radial direction from the end portion of outer cylinder part 431 covers 8 those sides.Interior column part 433 from the edge section 432 interior circumferential portion in axial direction extend to housing 7 one sides.In addition, spool 41, sleeve 37 etc. can be held by the opening of outer cylinder part 431 in housing 7 those sides.
The annular construction member 44 that magnetic material is made is pressed into the interior perimeter surface of opening of the outer cylinder part 431 of housing 7 those sides.Annular construction member 44 is arranged to the major diameter part 321 around guide rail 32.
Spool 41 loosely is fitted in the yoke 43, but so that with respect to yoke 43 relative movement.And, spool 41, yoke 43 and annular construction member 44 loosely pack into guide rail 32 and sleeve 37, but make it with respect to guide rail 32 and sleeve 37 relative movement.Notice that coil 40, spool 41, yoke 43 and annular construction member 44 have constituted coiler part of the present invention, coil 40 and yoke 43 have then constituted the major component of coiler part.
The ring elastic parts 45 that silica gel or similar material are made is installed on the end face of the coiler part on housing 7 those sides, in particular, and between spool 41 and guide rail 32.
Fig. 4 A is the front view of cover 8, and Fig. 4 B is the plan view of Fig. 4 A.Fig. 5 is the sectional view (back will be introduced in detail) that shows coil height h adjustment process.Fig. 6 is the amplification view of the F part of Fig. 5.Notice that among Fig. 4 B, for convenience's sake, dotted line is used to show the position of supercharger control valve 3 and pressure reduction control valve 5, so that distinguish the position relation between them.
After this, the structure of cover 8 will illustrate referring to Fig. 3-6.An end face of cover 8 is provided with the coil support projection 81 of truncated cone shape, and coil support projection 81 protrudes to a side of the edge section 432 of yoke 43.The other end of cover 8 is provided with the columniform fixture support projection 82 that protrudes (back will be introduced in detail) to support fixture 101 1 sides.
Each coil support projection 81 is slim, to such an extent as to when compacted anchor clamps 103 of coiler part (back will be introduced in detail) during to the extruding of a side of cover 8, it is easy to distortion and surrender (crush).On the other hand, the section area of each fixture support projection 82 is bigger than coil support projection, to such an extent as to even when the compacted anchor clamps 103 of coiler part are pressed onto cover one side, fixture support projection 82 also is difficult to deform.
For each position of supercharger control valve 3 is provided with three coil support projections 81.Meanwhile, can obviously see,, five fixture support projections 82 are set for each position of paired supercharger control valve 3 and pressure reduction control valve 5 from Fig. 4 B.Specifically, in five fixture support projections 82 is positioned between two supercharger control valves 3 (being adjustment member).From the direction E of compressing fixture 103 extruding coiler parts, four fixture support projections 82 are arranged on the position that fixture support projection 82 and coil support projection 81 overlap each other in addition.More particularly, when the direction E from compressing fixture 103 extruding coiler parts saw, those four fixture support projections 82 and coil support projection were in coaxial arrangement.
Before the supercharger control valve of above-mentioned structure was installed to housing 7 and cover 8, the coil 40 of supercharger control valve 3, spool, 41, terminal 42, yoke 43 and annular construction member 44 were integrated into coiler part, and other parts such as guide rail 32 and axle 33 are integrated into valve portion.
Then, pack into the recess part 71 of housing 7 of the guide rail 32 of valve portion, the end 711 of the opening of recess part is stuck, and guide rail 32 just has been fastened on the housing 7 like this.Thereby valve portion is secured on the housing 7.
Meanwhile, the terminal 42 of coiler part is welded on the substrate 10.And the compacted anchor clamps 103 of coiler part are pressed to cover 8 one sides, and thus, coil support projection 81 will be deformed to predetermined position.Therefore, adjusting coil height h makes it to fall in the tolerance range.(hereinafter be called as the state that control valve keeps) under supercharger control valve 3 remains on state between housing 7 and the cover 8, the above-mentioned adjustment of coil height h guarantees that guide rail 32 and annular construction member 44 form a magnetic circuit member that overlaps each other.So, the area of the magnetic circuit member between guide rail 32 and the annular construction member 44 fully is provided.And above-mentioned being adjusted under the control valve hold mode of coil height h provides the space for elastic component 45 installations.
Then, by elastic component 45 being installed to the outer peripheral portion of the guide rail 32 of valve portion, coiler part has just installed on the valve portion.Subsequently, with screw 9 cover 8 is fastened on the housing 7, supercharger control valve 3 has just remained between housing 7 and the cover 8 like this.
Follow again, the adjustment process of coil height h is described with reference to figure 5 and Fig. 6.Coil height h refers to the distance between the end face of the surface of contact 83 (being reference level) of cover 8 and housing 7 and the yoke 43 on housing 7 one sides.
Coil height h adjusts according to the following steps.At first, the cover 8 that is mounted thereon of supercharger control valve 3 coiler parts is installed on the support fixture 101 in the fixture support projection 82 of cover 8 mode with support fixture 101 adjacency.Then, datum plate 102 is installed on the contact surface 83 of cover 8 and is thereon fastening with screw.Therefore, cover 8 supported anchor clamps 101 and datum plate 102 keep.
Then, when compressing fixture 103 descended, the punch 104 that is connected to compressing fixture touched yoke 43, and coiler part pressurized on direction as shown by arrow E.So yoke 43 is forced into coil support projection 81, thus, coil support projection 81 deforms.At this moment, compressing fixture 103 drops to compressing fixture 103 and datum plate 102 contacted positions.Subsequently, the lower end surface (being the surface that punch connects) by adjusting compressing fixture 103 is to the distance between the lower end surface (i.e. the surface that contacts with yoke) of punch 104, and coil height h is adjusted to and falls in the predetermined scope.Note, can regulate by the pad (not shown) that is arranged between compressing fixture 103 and the punch 104 to the distance the lower end surface (i.e. the surface that contacts with yoke) of punch 104 from the lower end surface (being the surface that punch connects) of compressing fixture 103.
Below, the working condition of supercharger control valve 3 is described referring to Fig. 1 and Fig. 3.Fig. 3 shown when implementing common braking, just the working state of supercharger control valve volume 3 during coil 40 no electric circuits.When coil 40 no electric circuits, axle 33 and piston 38 are pressed to sleeve 37 bottom surfaces one side by spring 39, like this piston 38 with regard to and the bottom surface adjacency of sleeve 37.And the valve element 331 of axle 33 separates with first valve seat 342 of base 34.Brake-press lead A1 communicates with brake-press lead A2 by first path 341 of base 34, interval 326 in the guide rail 32 and the through hole 327 of guide rail 32.So when implementing common braking, brake fluid flows between master cylinder 1 and wheel cylinder 2, corresponding to the following press operation of brake petal.
On the other hand, in the decompression moment or the pressure maintenance moment of ABS control, in other words, when supercharger control valve 3 was closed, electric current was applied to coil 40.When coil 40 energisings, coil 40 forms magnetic field, and guide rail 32, piston 38, yoke 43 and annular construction member 44 form magnetic circuit.Then, piston 38 is because magnetic pull is drawn onto guide rail 32 1 sides.Axle 33 and piston 38 overcome spring 39 to base 34 1 side shiftings.Then, the valve element 33 1 of axle 33 contacts with first valve seat 342 of base 34.Thereby supercharger control valve 3 is closed, and brake-press lead A1 is cut off to the brake fluid of brake-press lead A2.
Then, in the moment that pressure strengthens in the ABS control procedure, the electric current in the coil 40 stops, and supercharger control valve is opened.Therefore, brake fluid flows to brake-press lead A2 from brake-press lead A1.
And in the ABS control procedure, decompression or pressure keep constantly, and just when supercharger control valve 3 was just being closed, brake petal can't press down.At this moment, because the hydrodynamic pressure difference of the hydrodynamic pressure of master cylinder side and wheel cylinder 2, safety check 31 separates with second valve seat 344 of base 34.In addition, brake-press lead A1 communicates with brake-press lead A2 by the alternate path 343 of base 34, gap 326 and the through hole 327 in the guide rail 32 in the guide rail 32.So, brake fluid from wheel cylinder 2 one effluents to master cylinder 1 one sides.
According to the above-mentioned embodiment of the invention protrude shape because the fixture support projection 82 of cover 8 forms, 101 of support fixtures and fixture support projection 82 against.In other words, cover 8 has only very narrow zone to contact with support fixture 101.Because as mentioned above, very narrow with support fixture 101 contacted zones, even under resin molded part situation, also be like this, be easily so improve plane precision by the adjustment pattern.Therefore, be easy to have the cover 8 of fixture support projection 82 with high plane precision manufacturing.And because the raising of fixture support projection 82 plane precisions, the surface of fixture support projection 82 is easy to closely contact with the surface of support fixture 101.Therefore just there is no need to adjust the ripple that support fixture 101 mates cover 8 as traditional cover, it makes that making support fixture 101 is easy to.
In addition, according to the embodiment of the invention, because the section area of fixture support projection 82 is bigger than coil support projection 81, so when adjusting coil height h, can suppress by the load distortion of the fixture support projection 82 that causes of the pressure of compressing fixture 103.Thereby the adjustment precision of coil height is improved.
And in embodiments of the present invention, coil support projection 81 and fixture support projection 82 are arranged to: when the direction E of compressing fixture 103 extruding coiler parts saw, they were overlapping.Therefore, when adjusting coil height h, suppressed near the bending of the cover 8 coil support projection 81, the adjustment precision of coil height h has just improved like this.
In addition, according to the embodiment of the invention, when the direction E from compressing fixture 103 extruding coiler parts saw, fixture support projection 82 and coil support projection 81 were coaxial arrangement.Therefore, when adjusting coil height h, suppressed near the bending of the cover 8 coil supporting projection 81 more reliably, like this, the adjustment precision of coil height h just is further enhanced.
Though above-described is the preferred embodiments of the present invention, will be appreciated that, below not deviating from, under the situation of the scope of claim and the meaning, can make amendment, change or change the present invention.
Claims (8)
1. a fluid control device comprises:
A plurality of solenoid valves, each solenoid valve comprise a coiler part, and wherein, coil is accommodated in the yoke that magnetic material makes, and when electric current was applied to coil, described coil can produce magnetic field;
A housing that is provided with fluid passage, described fluid passage opens and closes by solenoid valve;
A cover, thus described cover is cooperated with described housing and is kept described solenoid valve;
A plurality of coil support projections, described coil support projection is positioned on the end face of cover, protrude from an end face of cover, and with the coiler part adjacency, under the state of the supported fixture support of another end face of cover, by coiler part is pushed to the coil support projection, each coil support projection deforms; With
A plurality of fixture support projections, described fixture support projection is positioned on the cover other end, protrude from the cover other end, and with the support fixture adjacency.
2. fluid control device according to claim 1, wherein, the section area of fixture support projection is bigger than the section area of coil support projection.
3. fluid control device according to claim 1, wherein, when the direction of pushing coiler part from compressing fixture was seen, fixture support projection and coil support projection were overlapped.
4. fluid control device according to claim 2, wherein, when the direction of pushing coiler part from compressing fixture was seen, fixture support projection and coil support projection were overlapped.
5. fluid control device according to claim 1, wherein, when the direction of pushing coiler part from compressing fixture was seen, fixture support projection and coil support projection were coaxial arrangement.
6. fluid control device according to claim 2, wherein, when the direction of pushing coiler part from compressing fixture was seen, fixture support projection and coil support projection were coaxial arrangement.
7. fluid control device according to claim 3, wherein, when the direction of pushing coiler part from compressing fixture was seen, fixture support projection and coil support projection were coaxial arrangement.
8. fluid control device according to claim 4, wherein, when the direction of pushing coiler part from compressing fixture was seen, fixture support projection and coil support projection were coaxial arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100849289A CN100366923C (en) | 2004-10-10 | 2004-10-10 | Fluid control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100849289A CN100366923C (en) | 2004-10-10 | 2004-10-10 | Fluid control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1757938A CN1757938A (en) | 2006-04-12 |
| CN100366923C true CN100366923C (en) | 2008-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100849289A Expired - Fee Related CN100366923C (en) | 2004-10-10 | 2004-10-10 | Fluid control device |
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| CN (1) | CN100366923C (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08177679A (en) * | 1994-12-21 | 1996-07-12 | Nippondenso Co Ltd | Fuel injection valve |
| JPH09119401A (en) * | 1995-10-23 | 1997-05-06 | Nissin Kogyo Kk | Waterproof structure of reservoir on hydraulic control device |
| JPH11201305A (en) * | 1998-01-13 | 1999-07-30 | Koganei Corp | Solenoid valve |
| JP2000179734A (en) * | 1998-12-18 | 2000-06-27 | Toyota Motor Corp | Solenoid valve |
| JP2000255415A (en) * | 1999-03-05 | 2000-09-19 | Nissin Kogyo Co Ltd | Vehicular brake fluid pressure controller |
| JP2001349307A (en) * | 2000-06-09 | 2001-12-21 | Nachi Fujikoshi Corp | Position sensor built-in type fluid cylinder |
| US6719267B2 (en) * | 2000-12-13 | 2004-04-13 | Denso Corporation | Magnet valve and fluid control apparatus using the same |
-
2004
- 2004-10-10 CN CNB2004100849289A patent/CN100366923C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08177679A (en) * | 1994-12-21 | 1996-07-12 | Nippondenso Co Ltd | Fuel injection valve |
| JPH09119401A (en) * | 1995-10-23 | 1997-05-06 | Nissin Kogyo Kk | Waterproof structure of reservoir on hydraulic control device |
| JPH11201305A (en) * | 1998-01-13 | 1999-07-30 | Koganei Corp | Solenoid valve |
| JP2000179734A (en) * | 1998-12-18 | 2000-06-27 | Toyota Motor Corp | Solenoid valve |
| JP2000255415A (en) * | 1999-03-05 | 2000-09-19 | Nissin Kogyo Co Ltd | Vehicular brake fluid pressure controller |
| JP2001349307A (en) * | 2000-06-09 | 2001-12-21 | Nachi Fujikoshi Corp | Position sensor built-in type fluid cylinder |
| US6719267B2 (en) * | 2000-12-13 | 2004-04-13 | Denso Corporation | Magnet valve and fluid control apparatus using the same |
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| Publication number | Publication date |
|---|---|
| CN1757938A (en) | 2006-04-12 |
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