JPH05280657A - Solenoid hydraulic valve - Google Patents

Solenoid hydraulic valve

Info

Publication number
JPH05280657A
JPH05280657A JP7746992A JP7746992A JPH05280657A JP H05280657 A JPH05280657 A JP H05280657A JP 7746992 A JP7746992 A JP 7746992A JP 7746992 A JP7746992 A JP 7746992A JP H05280657 A JPH05280657 A JP H05280657A
Authority
JP
Japan
Prior art keywords
spool
yoke
hole
control
pass hole
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.)
Granted
Application number
JP7746992A
Other languages
Japanese (ja)
Other versions
JP3198595B2 (en
Inventor
Mikio Suzuki
幹夫 鈴木
Satoshi Sudo
聰 数藤
Satoru Yamada
悟 山田
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.)
Toyoda Koki KK
Original Assignee
Toyoda Koki KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyoda Koki KK filed Critical Toyoda Koki KK
Priority to JP07746992A priority Critical patent/JP3198595B2/en
Publication of JPH05280657A publication Critical patent/JPH05280657A/en
Application granted granted Critical
Publication of JP3198595B2 publication Critical patent/JP3198595B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To stabilize a characteristic of flow and pressure by fitting the second spool to a pass hole forming fitting shaft part of the first spool attracted to a yoke, and forming a notch in a yoke side end surface in an angular position not overlapped with a pass hole in the second spool. CONSTITUTION:A valve is constituted of a control spool 30, first spool 31 positioned in a side of a yoke 25 and further attracted thereto and the second spool 41 fitted to a fitting shaft part 32 of this first spool 31 and positioned in a side of a stopper 23. A large contour hole 33 of predetermined depth from a lower end and a pass bole 34 opened in a radial direction by communicating with this large contour hole 33 are formed in this fitting shaft part 32. On the other hand, a pair of notches 50 with the upper formed broad are formed in a side end face (contact end face side with first spool 31) of the yoke 25 in an angular position not overlapped with a pass hole 34, in the second spool 41. A throttle of changing an opening area by applied voltage is formed by these notches 50 and pass hole 34.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、ソレノイドに印加され
る制御電流に応じて絞り開口面積を変化させる電磁油圧
弁に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic hydraulic valve that changes an opening area of a throttle according to a control current applied to a solenoid.

【0002】[0002]

【従来の技術】従来のこの種の電磁油圧弁は、第4図に
示すように、ソレノイド100に制御電流を印加するこ
とによって制御スプール110を上方向すなわちヨーク
111側に向って変位させ、この制御スプール110の
変位によってオリフィス120の絞り開口面積を変化さ
せ、流入ポート121から流出ポート122への圧力,
流量等を制御するようにしている。
2. Description of the Related Art In a conventional electromagnetic hydraulic valve of this type, as shown in FIG. 4, a control current is applied to a solenoid 100 to displace a control spool 110 upward, that is, toward a yoke 111 side. The throttle opening area of the orifice 120 is changed by the displacement of the control spool 110, and the pressure from the inflow port 121 to the outflow port 122 is
The flow rate is controlled.

【0003】この場合、前記制御スプール110は、図
5(A)に示すように内孔133へと貫通するパス穴1
34が形成され、ヨーク111側で前期ソレノイド10
0に吸収される第1スプール130と、この第1スプー
ル103先端に嵌合され、図5(B)に示すように次第
に巾広となる切欠き150が形成された第2スプール1
41とで構成されている。前記パス穴134と切欠き1
50とは、図5(C)に示すように同角度位相に配置さ
れており、図6に示すように前記ソレノイド100への
制御電流により制御スプール110が上方向へ変位する
に伴い次第に開口面積が減少していく特性である。
In this case, the control spool 110 passes through the inner hole 133 as shown in FIG.
34 is formed, and the previous term solenoid 10 is provided on the yoke 111 side.
The first spool 130 which is absorbed by 0 and the second spool 1 which is fitted to the tip end of the first spool 103 and is formed with a notch 150 which is gradually widened as shown in FIG. 5B.
And 41. The pass hole 134 and the notch 1
50 is arranged at the same angular phase as shown in FIG. 5C, and as shown in FIG. 6, the opening area gradually increases as the control spool 110 is displaced upward by the control current to the solenoid 100. Is a characteristic that decreases.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、圧力流
体が流入ポート121から切欠き150、パス穴134
を介して流入ポート122へと流れる場合に、切欠き1
50とパス穴134とが直線的に並んでいるために、流
入ポート121からの圧力流体は、直接的に勢いよく内
孔133へと流れ込んでいき、スプール110に流れの
付着が起こる。よって、図8に示すようにスプール11
0を下方へと動かすフローフォースF1 、F2 、F3
働くため、オリフィス120の絞り開度が増加してしま
い、圧力、流量の特性が安定せず図7の破線のように流
出ポート122への流量が増加してしまう。
However, the pressure fluid flows from the inflow port 121 to the notch 150 and the pass hole 134.
Notch 1 when flowing into the inflow port 122 through
Since the 50 and the pass hole 134 are linearly arranged, the pressure fluid from the inflow port 121 directly and vigorously flows into the inner hole 133, and the flow adheres to the spool 110. Therefore, as shown in FIG.
Since the flow forces F 1 , F 2 , and F 3 that move 0 downwards increase, the throttle opening of the orifice 120 increases, and the characteristics of pressure and flow rate are not stable, and the outflow port as shown by the broken line in FIG. The flow rate to 122 will increase.

【0005】[0005]

【課題を解決するための手段】本発明は上記した従来の
問題点を解決するためになされたもので、制御スプール
を、ヨーク側に位置し且つヨークに吸収される第1スプ
ールと、この第1スプールの嵌合軸部に嵌合される第2
スプールとにより構成し、前記第1スプールの嵌合軸部
には外周から内孔へと貫通したパス穴を形成し、前記第
2スプールには前記パス穴と重合しない角度位置で前期
ヨーク側端面に切欠きを形成したものである。
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art. A control spool is located on the yoke side and is absorbed by the yoke. The second that is fitted to the fitting shaft of one spool
A spool, a pass hole penetrating from the outer circumference to the inner hole is formed in the fitting shaft portion of the first spool, and the second spool has an end surface on the yoke side at an angular position that does not overlap with the pass hole. It has a notch formed in it.

【0006】[0006]

【作用】流入ポートからの圧力流体は、バルブ本体と第
2スプールに形成された切欠きとで作られソレノイドに
印加される電流に応じて開口面積が変化される絞りから
第1スプールのパス穴へと迂回させられて、第1スプー
ルの内孔へと連通され、流出ポートへと流される。
The pressure fluid from the inflow port is formed by the valve body and the notch formed in the second spool, and the opening area is changed according to the electric current applied to the solenoid. And is communicated with the inner hole of the first spool, and is discharged to the outflow port.

【0007】[0007]

【実施例】以下本発明の実施例を図面に基づいて説明す
る。図1において、10はバルブ本体を示し、このバル
ブ本体10は、取付フランジ部11aを備えた磁性体か
らなるバルブスリーブ11と、バルブスリーブ11のス
リーブ部の外周にロー付によって固着した非磁性体から
なる支持スリーブ12と、支持スリーブ12内に嵌合固
定されてバルブスリーブ11のスリーブ部外端に当接す
る非磁性体からなるスペーサリング13と、バルブスリ
ーブ11の下端中央に穿設された段付内孔に嵌合固定さ
れて突出する非磁性体からなるエンドスリーブ14とに
よって構成されている。このバルブ本体10は、取付ベ
ース20に設けた内孔20a内にエンドスリーブ14を
液密的に嵌合させ、ねじ込み固定するようになってい
る。
Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 10 denotes a valve body. The valve body 10 includes a valve sleeve 11 made of a magnetic material having a mounting flange portion 11a and a non-magnetic material fixed to the outer circumference of the sleeve portion of the valve sleeve 11 by brazing. A support sleeve 12 made of, a spacer ring 13 made of a non-magnetic material that is fitted and fixed in the support sleeve 12 and contacts the outer end of the sleeve portion of the valve sleeve 11, and a step formed at the center of the lower end of the valve sleeve 11. The end sleeve 14 is made of a non-magnetic material and is fitted and fixed in the internal hole. In this valve body 10, the end sleeve 14 is liquid-tightly fitted in an inner hole 20a provided in the mounting base 20 and screwed and fixed.

【0008】取付ベース20には流入ポート21と流出
ポート22が穿設され、前記流入ポート21は前記内孔
20aの側部に開口し、前記流出ポート22は内孔20
aの底部に開口している。そして、エンドスリーブ14
には、前記流入ポート21をエンドスリーブ14の内壁
に形成された環状溝14bへ連通させる径方向の流体通
路14aが穿設され、内孔20aの底部はエンドスリー
ブ14の下端に固設されたストッパ23の中心に穿設さ
れた貫通穴23aを介してエンドスリーブ14の内部に
連通されている。
An inflow port 21 and an outflow port 22 are bored in the mounting base 20, the inflow port 21 is opened to the side of the inner hole 20a, and the outflow port 22 is the inner hole 20.
It has an opening at the bottom of a. And the end sleeve 14
Is formed with a radial fluid passage 14a for communicating the inflow port 21 with an annular groove 14b formed in the inner wall of the end sleeve 14, and the bottom of the inner hole 20a is fixed to the lower end of the end sleeve 14. It communicates with the inside of the end sleeve 14 through a through hole 23 a formed at the center of the stopper 23.

【0009】前記バルブ本体10の支持スリーブ12内
には、磁性体からなるスリーブ状のヨーク25がスペー
サリング13を挟んで取付けられ、このヨーク25にね
じ軸27が位置調整可能に螺合されている。一方バルブ
スリーブ11、スペーサリング13およびエンドスリー
ブ14の各内孔にて形成されたバルブ本体10の内孔1
0aには、制御スプール30が嵌挿され、スペーサリン
グ13とエンドスリーブ14とに摺動可能に嵌合してい
る。この制御スプール30の前記ねじ軸27との間に
は、スプリング18が嵌挿され、常時は制御スプール3
0の下端がストッパ23に当接する下端にスプール30
が位置されている。そして、前記支持スリーブ12およ
びヨーク25の外周にはソレノイド17が取付けられ、
制御スプール30をスプリング18の撥力に抗して、上
昇させるようになっている。
In the support sleeve 12 of the valve body 10, a sleeve-like yoke 25 made of a magnetic material is attached with the spacer ring 13 interposed therebetween, and a screw shaft 27 is screwed to the yoke 25 so as to adjust the position. There is. On the other hand, the inner hole 1 of the valve body 10 formed by the inner holes of the valve sleeve 11, the spacer ring 13, and the end sleeve 14.
The control spool 30 is fitted and inserted in 0a, and is slidably fitted in the spacer ring 13 and the end sleeve 14. A spring 18 is fitted and inserted between the control spool 30 and the screw shaft 27, and the control spool 3 is normally provided.
The lower end of 0 contacts the stopper 23, and the spool 30 is attached to the lower end.
Is located. A solenoid 17 is attached to the outer circumferences of the support sleeve 12 and the yoke 25,
The control spool 30 is raised against the repulsive force of the spring 18.

【0010】前記制御スプール30はヨーク25側に位
置しかつこのヨーク25に吸引される第1スプール31
と、前記ストッパ23側に位置しかつ筒状の第2スプー
ル41とよりなる。この第1スプール31は図2(A)
に示すようにその下端に嵌合軸部32を有し、この嵌合
軸部32に対してその下端より所定深さの大径穴33
と、この大径穴33に対し径方向より開口するパス穴3
4が形成され、また第2スプール41には前記第1スプ
ール31との当接端面側に上方を巾広とした一対の切欠
き50が形成されている。
The control spool 30 is located on the yoke 25 side and is sucked by the yoke 25.
And a cylindrical second spool 41 located on the stopper 23 side. This first spool 31 is shown in FIG.
As shown in FIG. 3, a fitting shaft portion 32 is provided at the lower end thereof, and a large diameter hole 33 having a predetermined depth from the lower end of the fitting shaft portion 32.
And the pass hole 3 that is opened from the large diameter hole 33 in the radial direction.
4 is formed, and the second spool 41 is formed with a pair of notches 50 having a wide upper portion on the side of the contact end face with the first spool 31.

【0011】そしてこの第1,第2スプール31,41
とを図2(C)に示すように、前期切欠き50とパス穴
34とが直線的に並ばぬよう90°ずらし互いに一体結
合する。尚、この際、図3に示すように前期パス穴34
が十分に絞られるまで第2スプール41は嵌合されてい
る。
Then, the first and second spools 31, 41
As shown in FIG. 2C, the notches 50 and the pass holes 34 are offset by 90 ° so that they are not aligned in a straight line, and are integrally connected to each other. At this time, as shown in FIG.
The second spool 41 is fitted until the position is sufficiently narrowed.

【0012】このように構成した電磁油圧弁によると、
ソレノイド17に制御電流が印加されない状態では、制
御スプール30はスプリング18の撥力にて下降端に位
置され、前期切欠き50で形成されるオリフィス42は
図6に示すように最大の絞り開口面積となっている。そ
の後、ソレノイド17に制御電流が印加されると、ソレ
ノイド17からカバー28、バルブ本体10のバルブス
リーブ11、制御スプール30の第1スプール31、ヨ
ーク25、カバー28およびソレノイド17を通る磁束
が形成され、これにより制御スプール30には吸引力が
作用する。これによって制御スプール30は上方向に変
位し、その結果オリフィス42の絞り開口面積は図6に
示すようにソレノイド17に印加される電流の増加に伴
って次第に減少するような特性となる。
According to the electromagnetic hydraulic valve configured as described above,
In the state where the control current is not applied to the solenoid 17, the control spool 30 is positioned at the lower end by the repulsive force of the spring 18, and the orifice 42 formed by the notch 50 has the maximum aperture opening area as shown in FIG. Has become. Then, when a control current is applied to the solenoid 17, magnetic flux is formed from the solenoid 17 through the cover 28, the valve sleeve 11 of the valve body 10, the first spool 31 of the control spool 30, the yoke 25, the cover 28 and the solenoid 17. As a result, a suction force acts on the control spool 30. As a result, the control spool 30 is displaced upward, and as a result, the throttle opening area of the orifice 42 has a characteristic that it gradually decreases as the current applied to the solenoid 17 increases, as shown in FIG.

【0013】そして、図3に示すように流入ポート21
から流入した圧力流体は切欠き50とパス穴34とが9
0°ずれているため直接的に流れ込まず迂回することで
段階的な絞り作用が働き、滑らかな流れとなり、且つオ
リフィス42を通して第1スプール31と第2スプール
41とがつくる環状溝55内へ流れ込む際、この環状溝
55の上方端面35に大きなフローフォースF1 が働
く。
Then, as shown in FIG. 3, the inflow port 21
The pressure fluid flowing in from the 9
Since it is deviated by 0 °, it does not flow directly and bypasses it, so that a gradual throttling action works, resulting in a smooth flow and flowing through the orifice 42 into the annular groove 55 formed by the first spool 31 and the second spool 41. At this time, a large flow force F 1 acts on the upper end surface 35 of the annular groove 55.

【0014】切欠き50端面には、オリフィス42から
第1スプール31と第2スプール41との間隔55へと
流れ込む際に働く上方への力と間隔56へと流れる際に
働く下方への力とにより下方へと微少なフローフォース
2 が働く。間隔56の下方端面57にはフローフォー
スF3 が働き、間隔56からパス穴34を介して第2流
出ポート22へと流れる際にはパス穴34の下方端面に
微少なフローフォースF4 が働く、また前記環状溝55
内からパス穴34へと流れる際に第2スプール41の端
面58に働くフローフォースF5 は、パス穴34が第2
スプール41に十分絞られているため微少である。
On the end face of the notch 50, an upward force acting when flowing into the gap 55 between the first spool 31 and the second spool 41 from the orifice 42 and a downward force acting when flowing into the gap 56. This causes a slight flow force F 2 to work downward. The flow force F 3 works on the lower end surface 57 of the space 56, and when flowing from the space 56 to the second outflow port 22 through the pass hole 34, a minute flow force F 4 works on the lower end surface of the pass hole 34. , The annular groove 55
The flow force F 5 that acts on the end surface 58 of the second spool 41 when flowing from the inside to the pass hole 34 causes
It is very small because it is sufficiently narrowed down to the spool 41.

【0015】よって、上方への大きなフローフォースF
1 と、下方へのフローフォースF2、F3 、F4 、F5
とが均衡をとり、図7実線のように安定した特性を得
る。上記実施例では、パス穴34と切欠き50とを90
°ずらして嵌合しているが、角度は何度でもよく、パス
穴34と切欠き50とが角度的にずれていれば良いが、
複数ある切欠き50より均等に圧力流体が流れ込むよう
切欠きと切欠きの中間位置にパス穴がくるような角度で
嵌合されるのが望ましい。
Therefore, a large upward flow force F
1 and downward flow force F 2 , F 3 , F 4 , F 5
And are balanced, and stable characteristics are obtained as shown by the solid line in FIG. In the above embodiment, the pass hole 34 and the notch 50 are 90
Although they are fitted with being shifted from each other, the angle may be any number of times, and the pass hole 34 and the notch 50 may be angularly displaced from each other.
It is desirable that the pressure holes are fitted at an angle such that a pass hole is located at an intermediate position between the notches so that the pressure fluid flows evenly from the plurality of notches 50.

【0016】[0016]

【発明の効果】本発明の電磁油圧弁は、流入ポートと流
出ポートとを連通する通路をソレノイドによる制御スプ
ールの軸方向変位で角度を変化させるもので、制御スプ
ールをパス穴を形成した第1スプールと、端面に切欠き
を形成した第2スプールとで構成し、前期パス穴と切欠
きが重合しないように角度位置をずらせて一体結合され
た構成であるため、流入ポートから通路を介し流出ポー
トへと流れる際に切欠きからパス穴へと迂回させて段階
的な絞り作用を働かせ、流れを滑らかにし、制御スプー
ルに働く上下方向のフローフォースの均衡がとれるため
に、安定した圧力特性、流量特性を得ることができる。
The electromagnetic hydraulic valve of the present invention changes the angle of the passage connecting the inflow port and the outflow port by the axial displacement of the control spool by the solenoid. Consists of a spool and a second spool with a notch formed on the end face, and the passage hole and the notch do not overlap with each other. When flowing to the port, it detours from the notch to the pass hole to exert a stepwise throttling action, smoothes the flow, and balances the vertical flow force acting on the control spool, so stable pressure characteristics, The flow rate characteristic can be obtained.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例を示す電磁油圧弁の断面図であ
る。
FIG. 1 is a sectional view of an electromagnetic hydraulic valve showing an embodiment of the present invention.

【図2】(A),(B):実施例において電磁油圧弁の
制御スプールの説明図である。 (C):図1における制御スプールのA−A断面図であ
る。
2A and 2B are explanatory views of a control spool of an electromagnetic hydraulic valve in the embodiment. (C): AA sectional view of the control spool in FIG. 1.

【図3】実施例における圧力流体の作用を表す部分の説
明図である。
FIG. 3 is an explanatory diagram of a portion showing the action of the pressure fluid in the example.

【図4】従来技術を示す断面図である。FIG. 4 is a cross-sectional view showing a conventional technique.

【図5】(A),(B):従来技術における制御スプー
ルの説明図である。 (C):図5における制御スプールのB−B断面図であ
る。
5A and 5B are explanatory diagrams of a control spool according to a conventional technique. (C): It is a BB sectional view of the control spool in FIG.

【図6】制御電流における開口面積を表す図である。FIG. 6 is a diagram showing an opening area at a control current.

【図7】制御電流の違いによる圧力流量特性を表す図で
ある。
FIG. 7 is a diagram showing a pressure flow rate characteristic due to a difference in control current.

【図8】従来技術における圧力流体の作用を表す部分の
説明図である。
FIG. 8 is an explanatory diagram of a portion showing the action of the pressure fluid in the conventional technique.

【符号の説明】 17、100 ソレノイド 21、121 流入ポート 22、122 流出ポート 30、110 制御スプール 31、130 第1スプール 34、134 パス穴 41、131 第2スプール 42、120 オリフィス 50、150 切欠き[Explanation of Codes] 17,100 Solenoid 21,121 Inflow port 22,122 Outflow port 30,110 Control spool 31,130 First spool 34,134 Pass hole 41,131 Second spool 42,120 Orifice 50,150 Notch

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 流入ポートと流出ポートを有しかつこれ
らのポートが開口する内孔を形成してなるバルブ本体
と、このバルブ本体の前記内孔内に摺動可能に嵌挿され
その軸方向変位に応じて前記両ポート間の通路開口面積
を変化させる制御スプールと、前記両ポート間を連通す
る通路を開く方向に前記制御スプールを付勢するスプリ
ングと、前記バルブ本体に前記制御スプールと同軸的に
配設したヨークの外周に巻回されて制御電流が印加され
るソレノイドとを具備して、前記制御スプールの軸方向
変位が前記ソレノイドに印加した電流に応じて生じる前
記ヨークの吸引力によってもたらされるようにした電磁
油圧弁において、前記制御スプールを、前記ヨーク側に
位置しかつヨークに吸引される第1スプールと、前記第
1スプールの嵌合軸部に嵌合される第2スプールとより
構成し、前記第1スプールの嵌合軸部には外周から内孔
へと貫通したパス穴を形成し、前記第2スプールには前
記パス穴と重合しない角度位置に切欠きを前記ヨーク側
端面に形成したことを特徴とする電磁油圧弁。
1. A valve body having an inflow port and an outflow port and forming an inner hole through which these ports are open, and an axial direction of the valve body slidably fitted in the inner hole. A control spool that changes a passage opening area between the ports according to a displacement, a spring that urges the control spool in a direction of opening a passage that communicates between the ports, and a valve body that is coaxial with the control spool. And a solenoid to which a control current is applied, which is wound around the outer periphery of the yoke, and the axial displacement of the control spool is generated by the attraction force of the yoke generated according to the current applied to the solenoid. In the electromagnetic hydraulic valve configured to be provided, the control spool is located on the yoke side and is sucked by the yoke, and a fitting shaft portion of the first spool. A second spool which is fitted to the first spool, and a pass hole penetrating from the outer circumference to the inner hole is formed in the fitting shaft portion of the first spool, and the second spool does not overlap with the pass hole. An electromagnetic hydraulic valve characterized in that a notch is formed at an angular position on the end face on the yoke side.
JP07746992A 1992-03-31 1992-03-31 Electromagnetic hydraulic valve Expired - Fee Related JP3198595B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP07746992A JP3198595B2 (en) 1992-03-31 1992-03-31 Electromagnetic hydraulic valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP07746992A JP3198595B2 (en) 1992-03-31 1992-03-31 Electromagnetic hydraulic valve

Publications (2)

Publication Number Publication Date
JPH05280657A true JPH05280657A (en) 1993-10-26
JP3198595B2 JP3198595B2 (en) 2001-08-13

Family

ID=13634851

Family Applications (1)

Application Number Title Priority Date Filing Date
JP07746992A Expired - Fee Related JP3198595B2 (en) 1992-03-31 1992-03-31 Electromagnetic hydraulic valve

Country Status (1)

Country Link
JP (1) JP3198595B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10220624A (en) * 1996-06-28 1998-08-21 Nok Corp Solenoid valve
KR100447848B1 (en) * 2001-11-01 2004-09-08 (주)모토닉 Solenoid valve
JP2013204732A (en) * 2012-03-29 2013-10-07 Kyb Co Ltd Solenoid valve and damper

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10220624A (en) * 1996-06-28 1998-08-21 Nok Corp Solenoid valve
KR100447848B1 (en) * 2001-11-01 2004-09-08 (주)모토닉 Solenoid valve
JP2013204732A (en) * 2012-03-29 2013-10-07 Kyb Co Ltd Solenoid valve and damper

Also Published As

Publication number Publication date
JP3198595B2 (en) 2001-08-13

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