WO1991005195A1 - Proportional pressure control solenoid valve - Google Patents
Proportional pressure control solenoid valve Download PDFInfo
- Publication number
- WO1991005195A1 WO1991005195A1 PCT/JP1990/001278 JP9001278W WO9105195A1 WO 1991005195 A1 WO1991005195 A1 WO 1991005195A1 JP 9001278 W JP9001278 W JP 9001278W WO 9105195 A1 WO9105195 A1 WO 9105195A1
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- WO
- WIPO (PCT)
- Prior art keywords
- plunger
- sleeve
- pressure control
- fluid
- fitted
- Prior art date
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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
- F16K31/0603—Multiple-way valves
- F16K31/061—Sliding valves
- F16K31/0613—Sliding valves with cylindrical slides
Definitions
- the present invention relates to an electromagnetic proportional control valve, and more particularly to a structure of a plunger used therein.
- a coil 2 is provided on a cylindrical main body 1, and a sleeve 4 provided with a bush 3 is fitted to the main body 1 to form a fixed side. Then, the plunger 5 which becomes the movable side along the inner peripheral surface of the bush 3 is inserted into the self-sliding position, and the coil 2 is energized by energizing the coil 2.
- a solenoid in which a spooler 5 is slid and a spool 7 of a valve body 6 is pushed.
- the plunger 5 moves along the inner peripheral surface of the wound bush 3, so that the plunger 5 moves along the inner peripheral surface of the wound bush 3.
- the roundness greatly affects the sliding resistance of the bridge 5
- the wound bush 3 is fitted to the sleeve 4 and the sleeve 3 Since the sleeve 4 is fitted to the main body 1, the sleeve 4 itself is distorted when the sleeve 4 is fitted to the main body 1, so that the winding bush 3 is distorted. Roundness becomes worse.
- the sleeve 4 is thinner than the outer shape of the main body 1, the above-mentioned distortion is easily generated.
- a spool 12 is attached to the valve body 11.
- the spring 12 is urged by the spring 13 toward the position where the communication between the inlet port 14 and the outlet port 15 is cut off, and the proportional solenoid is The direction in which the spool 12 is connected to the inlet port 14 and the outlet port 15 by the rod 18 provided on the plunger 17 of the node 16 in Fig the scan pool 1 2 end side diameter (3 1 opening pressure P 0 out by rather come atmospheric Ri goodness other end diameter d 2 - press and, is et to scan pool Honoré 1 2 to A rightward force, that is, a force that blocks communication between the inlet port 14 and the outlet port 15, is applied to the thrust of the proportional solenoid 16. We are trying to obtain a proportional pressure force.
- the durability may be deteriorated, and the load 18 may be sunk into or out of the plunger 17, and furthermore, In order to push the spoonholes 12 with the plunger 17 and the rod 18, they are not straightened but tend to buckle and a lateral component is generated. History Is larger.
- the present invention has been made in the mirror under the circumstances described above.
- the first objective is to reduce the number of parts and cost, and to improve the durability of the moving parts, the proportional solenoid
- the plunger as a movable member of the guide does not provide an electromagnetic proportional pressure control valve in which a spool function is added to the plunger itself.
- a second object of the present invention is to mount a conventional solenoid on a sleeve in order to reduce the sliding resistance of the plunger as a movable member of the proportional solenoid.
- An object of the present invention is to provide a solenoid using a brassier in which a ring made of a low-friction-counting material is mounted on the outer peripheral surface instead of the bush.
- a brass as a movable member is provided in an outer surrounding fixed body provided with a current excitation type coil made of an insulated winding.
- An electromagnetic proportional pressure control valve having a proportional solenoid in which an adjuster is movably fitted is formed at a predetermined interval on one side of the fixed body.
- the fluid inlet side passage and the fluid outlet side passage and the drain passage located in the middle of the two passages, and the through hole formed inside the fixed body from one side thereof.
- a sleeve having an inlet port communicating with the fluid inlet-side passage and an outlet port communicating with the fluid outlet-side passage, and the other end of the through hole.
- a resilient panel which is instrumentation wearing surface, and along one an inner circumferential surface of the scan rie Bed by its being slidably fitted, and the resilient panel bullets germination Therefore, a plunger having a spool function that is constantly urged to the retaining ring side is provided, in which the above-mentioned brassiere is one side of the plunger.
- a second and a third constricted portion are sequentially provided, and the plunger is provided on the fluid inlet side passage according to the resilience of the bullet-emitting panel and the fluid outlet pressure of the fluid.
- a current is applied to the coil in a direction in which the communication between the fluid inlet side passage and the fluid outlet side passage is interrupted, and the coil is connected to the fluid inlet side passage by the action of a proportional solenoid.
- An electromagnetic proportional pressure control valve characterized in that it can be slid in a direction allowing communication with the outlet side passage. Subjected to Ru.
- the electromagnetic proportional pressure control valve according to the first aspect, wherein the plunger is made of a low coefficient of friction material fixed to an outer peripheral surface thereof.
- An electromagnetic proportional pressure control valve is provided which has a sliding contact ring formed therein and which is fitted to the inner peripheral surface of the sleeve via the contact ring. .
- the plunger itself is slid by the action of the proportional solenoid and the panel force, and the outlet side pressure is reduced by the proportional solenoid. If it is possible to control in proportion to the amount of current applied to the coil, and it is not necessary to use a load pool, the number of parts will be reduced and the cost will be reduced.
- the durability is improved without force, cracking or slipping of each part, and pulling the plunger by the action of a proportional solenoid
- the hysteresis can be reduced without buckling and the tangential ring provided on the outer peripheral surface of the rigid rigid plunger can be fixed.
- the sliding ring is used to slide the plunger to the fixed side, so the roundness of the sliding ring is ensured to ensure the roundness of the sliding ring. Dynamic resistance can be reduced.
- FIG. 1 is an overall schematic sectional view showing a specific example of the electromagnetic proportional pressure control valve of the present invention
- FIG. 2 is a perspective view of a sleeve used in the specific example shown in FIG. 1,
- Fig. 3 is a cross-sectional view taken along the line m-m in Fig. 1
- Fig. 4 is a cross-sectional view showing a modification of the proportional solenoid
- Fig. 5 is a proportional solenoid. Sectional view showing another modified example
- Fig. 6 is a cross-sectional view showing a conventional example of a proportional solenoid
- FIG. 7 is an overall schematic sectional view showing a conventional example of an electromagnetic proportional pressure control valve. Detailed description of preferred examples
- the electromagnetic proportional pressure control valve of the present invention has a sleeve 22 on one side of a cylindrical body 20 and a blind plug on the other side. 21 are fitted to each other to form a fixed body, and a current excitation type coil 24 made of an insulated winding is provided inside the body 20 and the inside of the sleeve 22 is provided.
- a bracket 25 is slidably fitted so as to be in sliding contact with the peripheral surface to form a proportional solenoid 26.
- the sleeve 22 is fitted so as to be flush with the body 20, and is prevented by a retaining ring 27 provided on one side of the sleeve 22.
- the sleeve 22 has an inlet port 28 and an outlet port 29, and the inlet and outlet ports 28 and 29 are connected to the body 2 It communicates with the inlet hole 30 formed at 0 and the outlet hole 31. That is, as shown in Fig. 4, the sleeve 22 has two outer peripheral flat surfaces 22a and 22b, and the inlet and outlet ports 28 and 29 are formed on the outer peripheral surface. Openings are formed in the flat surfaces 22 a and 22 b, and an inlet hole 30 and an outlet hole 31 are formed between the opening and the hole 32 of the body 20.
- a shaft hole 33 is formed in the plunger 25, and first, second, and third constricted portions 34, 35, and 36 are sequentially formed on the outer peripheral surface.
- the coil 24 is energized, and the plunger 25 communicates the inlet port 28 and the outlet port 28 with each other. (To the right in the figure).
- the body 20 is attached to a valve body 38, and an inflow port 39, an outflow port 40, and a tank port 41 are formed in the valve body 38, and the inflow port is formed.
- Port 39 communicates with inlet hole 30, outlet port 40 communicates with outlet hole 31, and tank port 41 communicates with shaft hole 33.
- the outer diameter d, at one end of the plunger 25, is larger than the outer diameter d2 at the other end, and the plunger 25 is formed into an inlet hole 2 by an outlet pressure.
- a force is applied in a direction that blocks the communication between the port 8 and the outlet hole 29, and as a result, the attractive force of the proportional solenoid 16 is reduced.
- An electromagnetic proportional pressure control valve that can obtain the outlet pressure in proportion to the amount of current (current) supplied to the fins 24 is configured.
- a small-diameter outer peripheral surface portion 8 is formed on the outer peripheral surface 5a of the plunger 5, and the small-diameter outer peripheral portion 8 is formed.
- a mounting groove 9 is formed in the outer peripheral surface portion 2, and a sliding ring 10 made of a material having a low coefficient of friction such as Teflon is mounted in the mounting groove 9.
- the outer peripheral surface 10 a of the damper 10 has the same diameter as the outer peripheral surface 5 a of the plunger 5, and the plunger 5 is connected to the sleeve 4 via the sliding contact ring 10. It can be made to slide along the inner peripheral surface. For example, after attaching the sliding ring 10, the outer peripheral surfaces of the sliding ring 10 and the bracket 5 are cut to have the same diameter.
- the connecting ring 10 is fitted to the inner peripheral surface of the main body 1 and the outer peripheral surface 5 of the plunger 5 is fitted.
- a may be fitted into the hole 6 a of the valve body 6 .
- the intermediate portion is not in contact with the hole 6 a of the valve body 6 as the small-diameter outer peripheral surface.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
A proportional pressure control solenoid valve intended to reduce the number of parts to lower the costs and to improve the durability of the movable portion. The valve comprises a porportional solenoid (16), in which a plunger (25) is coupled into an enclosing fixed member (23) having a coil (24) therein, first, second and third small-diameter portions formed on the outer peripheral surface portion extending from one end to a substantially intermediate portion of the plunger (25) and communicating with a fluid inlet port (28), a fluid outlet port (29) and a drain path (41), respectively, and resilient spring (37) fastened onto a face of the other end of the plunger; while the plunger (25) is made to slide in a direction in which the communication between the inlet port (28) and the outlet port (29) is cut off by the resilient force of the spring (37) and the pressure on the outlet side of the fluid, or in a direction in which both ports (28, 29) are brought into communication with each other through the energizing of the proportional solenoid (16).
Description
明 細 書 Specification
電磁比例圧力制御弁 Electromagnetic proportional pressure control valve
発明 の技術分野 TECHNICAL FIELD OF THE INVENTION
の発明 は、 電磁比例制御弁に関 し 、 特に そ の 中で用 い られ る プラ ン ジ ャ ー の構造に関す る 。 The present invention relates to an electromagnetic proportional control valve, and more particularly to a structure of a plunger used therein.
発明 の背景技術 BACKGROUND OF THE INVENTION
6 図 に示すよ う に、 筒状の本体 1 に コ イ ル 2 を設け こ の本体 1 に き ブ ッ シ ュ 3 を備え た ス リ ー ブ 4 を嵌合 さ せて固定側 と な し 、 そ の巻 ブ ッ シ ュ 3 の 内周面に沿 つ て可動側 と な る プ ラ ン ジ ャ 5 を摺動 自 在に揷入 し 、 コ ィ ル 2 に通電 し てブ ラ ン ジ ャ 5 を摺動 さ せ弁本体 6 の ス プ 一ル 7 を押す よ う に し た ソ レ ノ ィ ドが知 ら れてい る 。 6 As shown in the figure, a coil 2 is provided on a cylindrical main body 1, and a sleeve 4 provided with a bush 3 is fitted to the main body 1 to form a fixed side. Then, the plunger 5 which becomes the movable side along the inner peripheral surface of the bush 3 is inserted into the self-sliding position, and the coil 2 is energized by energizing the coil 2. There is known a solenoid in which a spooler 5 is slid and a spool 7 of a valve body 6 is pushed.
かか る ソ レ ノ ィ ドであ る と 、 プラ ン ジ ャ 5 は卷 き ブ ッ シ ュ 3 の 内周面に沿 っ て搢動す る ので、 そ の巻 き ブ ッ シ ュ 3 の真円度がブラ ン ジ ャ 5 の摺動抵抗に大き く 影響す し か し な が ら 、 巻 き ブ ッ シ ュ 3 はス リ ー ブ 4 に嵌合 さ れ、 かつ そ の ス リ ー ブ 4 は本体 1 に嵌合 さ れ る た め に、 ス リ — ブ 4 を本体 1 に嵌合す る 際にス リ ー ブ 4 自 体がひ ずむので、 巻 き ブ ッ シ ュ 3 の真円度が悪 く な る 。 With such a solenoid, the plunger 5 moves along the inner peripheral surface of the wound bush 3, so that the plunger 5 moves along the inner peripheral surface of the wound bush 3. While the roundness greatly affects the sliding resistance of the bridge 5, the wound bush 3 is fitted to the sleeve 4 and the sleeve 3 Since the sleeve 4 is fitted to the main body 1, the sleeve 4 itself is distorted when the sleeve 4 is fitted to the main body 1, so that the winding bush 3 is distorted. Roundness becomes worse.
特に、 ス リ ー ブ 4 は本体 1 の外形上の 限に よ り 薄肉 と な つ てい る か ら 、 前述の ひずみが発生 し易 く な る 。 In particular, since the sleeve 4 is thinner than the outer shape of the main body 1, the above-mentioned distortion is easily generated.
ま た、 ソ レ ノ ィ ドを用 い た電磁比例圧力制御弁 に関 し て は、 第 7 図 に示すよ う に、 弁本体 1 1 に ス プー ル 1 2
を嵌合 し 、 こ の ス プー ノレ 1 2 をバネ 1 3 で入口 ポ ー ト 1 4 と 出 口 ポ ー ト 1 5 と の連通を遮断す る 位置に 向 けて付勢 し 、 比例 ソ レ ノ ィ ド 1 6 の プラ ン ジ ャ 1 7 に設けた ロ ッ ド 1 8 で ス プ ー ル 1 2 を入口 ポ ー ト 1 4 と 出 口 ポ 一 ト 1 5 と を互い に連通す る方向 に押 し、 さ ら にス プー ノレ 1 2 の —端側径 （3 1 を他端側径 d 2 よ り 大 き く し て出 口圧力 P 0 で ス プー ル 1 2 に図 に おいて右向 き の力、 つ ま り 入 口 ポ ー ト 1 4 と 出 口 ポ ー ト 1 5 と の連通を遮断す る 方向 の力を作用 さ せ、 比例 ソ レ ノ ィ ド 1 6 の推力 に比例 し た 圧力力 得 ら れ る よ う 〖こ し てい る 。 As for the solenoid proportional pressure control valve using a solenoid, as shown in Fig. 7, a spool 12 is attached to the valve body 11. The spring 12 is urged by the spring 13 toward the position where the communication between the inlet port 14 and the outlet port 15 is cut off, and the proportional solenoid is The direction in which the spool 12 is connected to the inlet port 14 and the outlet port 15 by the rod 18 provided on the plunger 17 of the node 16 in Fig the scan pool 1 2 end side diameter (3 1 opening pressure P 0 out by rather come atmospheric Ri goodness other end diameter d 2 - press and, is et to scan pool Honoré 1 2 to A rightward force, that is, a force that blocks communication between the inlet port 14 and the outlet port 15, is applied to the thrust of the proportional solenoid 16. We are trying to obtain a proportional pressure force.
かか る 電磁比例圧力制御弁であ る と 、 比例 ソ レ ノ ィ ド 1 6 の推力でス プー ル 1 2 を押 し てい る ので、 磁性体よ り 成 る プラ ン ジ ャ 1 7 に非磁性体よ り 成 る ロ ッ ド 1 8 を 設け、 そ の ロ ッ ド 1 8 を ス プー ル 1 2 に 当接せね ばな ら ず、 プ ラ ン ジ ャ 1 7 、 ロ ッ ド 1 8 、 ス プー ル 1 2 を必要 と し て部品点数が多 く コ ス ト 高 と な る ばか り か、 ロ ッ ド 1 8 と ス プー ル 1 2 の接触面が凹んだ り 、 す り へ つ た り し て耐久性が悪 く な り 、 し 力、 も ロ ッ ド 1 8 がプラ ン ジ ャ 1 7 中 に め り 込ん だ り 、 抜け 出 し た り する こ とがあ り 、 さ ら に は プ ラ ン ジ ャ 1 7 、 ロ ッ ド 1 8 で ス プー ノレ 1 2 を 押すた め に それ ら が一直線状に な ら ずに座屈傾向 に な つ て横分力が発生 し 、 ヒ ス テ リ スが大き く な る 。 In the case of such an electromagnetic proportional pressure control valve, since the spool 12 is pushed by the thrust of the proportional solenoid 16, the plunger 17 made of a magnetic material is not applied to the spool 17. A rod 18 made of a magnetic material is provided, and the rod 18 must be brought into contact with the spool 12. The plunger 17 and the rod 18 In addition, it is necessary to increase the number of parts and increase the cost due to the need for the spool 12, or to make the contact surface between the rod 18 and the spool 12 concave or sharp. As a result, the durability may be deteriorated, and the load 18 may be sunk into or out of the plunger 17, and furthermore, In order to push the spoonholes 12 with the plunger 17 and the rod 18, they are not straightened but tend to buckle and a lateral component is generated. History Is larger.
発明 の概要 Summary of the Invention
本発明 は上記 し た事情に鏡みてな さ れた も ので あ っ て
そ の第 1 目 的 と す る と こ ろ は、 部品点数を減 ら し て コ ス ト 低減化を図 る と 共に、 可動部の耐久性を向上 さ せ る た め に 、 比例 ソ レ ノ ィ ド の可動部材 と し て の プ ラ ン ジ ャ 自 体 に ス プー ル機能を付与 し た電磁比例圧力制御弁を提供 な し と i» る 0 The present invention has been made in the mirror under the circumstances described above. The first objective is to reduce the number of parts and cost, and to improve the durability of the moving parts, the proportional solenoid The plunger as a movable member of the guide does not provide an electromagnetic proportional pressure control valve in which a spool function is added to the plunger itself.
本発明の第 2 目 的は、 比例 ソ レ ノ ィ ドの可動部材 と し ての プラ ン ジ ャ の摺動抵抗を小 さ く す る た め に、 従来ス リ ー ブに装着 さ れてい た ブ ッ シ ュ に代え て、 外周面に低 摩擦計数材か ら成 る リ ン グを装着 し た ブラ ン ジ ャ を用 い た ソ レ ノ ィ ド を提供す る こ と に あ る 。 A second object of the present invention is to mount a conventional solenoid on a sleeve in order to reduce the sliding resistance of the plunger as a movable member of the proportional solenoid. An object of the present invention is to provide a solenoid using a brassier in which a ring made of a low-friction-counting material is mounted on the outer peripheral surface instead of the bush.
上記諸 目 的を達成す る た め に 、 本発明の第 1 態様に よ れば絶縁巻線か ら な る電流励起型 コ イ ルを備え た外包囲 固定体内 に可動部材 と し ての ブラ ン ジ ャ を搢動 自在に嵌 装'し た比例 ソ レ ノ ィ ドを有す る電磁比例圧力制御弁に お い て、 前記固定体の一側に互い に所定間隔をお い て形成 さ れた流体入口側通路お よ び流体出 口側通路な ら びに両 通路の 中間に位置す る ド レ ン通路 と 、 前記固定体の 内部 に形成 さ れた貫通孔の一側か ら嵌装 さ れ、 前記流体入口 側通路 と 連通す る 入口 ポ 一 ト と 前記流体出 口側通篇 連 通す る 出 口 ポ ー ト と を有す る ス リ ー ブ と 、 前記貫通 ¾の 他側か ら嵌装 さ れた盲栓 と 、 前記ス リ ー ブの一側端面に 設け ら れた抜け止め リ ン グ と 、 前記盲栓のー側端面に装 着 さ れた弾発パネ と 、 そ し て前記ス リ ー ブの 内周面に沿 つ て摺動可能に嵌装 さ れ、 かつ前記弾発パネ の弾発ガに
よ っ て前記抜け止め リ ン グ側に常時付勢 さ れてい る ス プ ー ル機能を有す る プラ ン ジ ャ と を含み、 そ こ におい て前 記ブラ ン ジ ャ がそ の一側か ら ほぼ中央部にわ た る 外周面 部に前記ス リ ー ブの入口 ポ ー ト およ び出 口 ポ 一 ト な ら び に前記 ド レ ン通路に それぞれ連通す る 小径の第 1 、 第 2 そ し て第 3 括れ部を順次有 し、 ま た前記プラ ン ジ ャ が前 記弾発パネ の弾発力 と 流体の前記流体出 口側圧力 と に よ つ て前記流体入口側通路 と 前記流体出 口側通路 と の連通 を遮断す る 方向 に、 そ し て前記 コ イ ルに電流が流 さ れた と き に は比例 ソ レ ノ ィ ドの作用で前記流体入口側通路 と 前記出 口側通路 と の連通を許す方向 に摺動せ し め ら れる こ と を特徵 と す る 電磁比例圧力制御弁が提供 さ れ る。 In order to achieve the above objects, according to a first aspect of the present invention, a brass as a movable member is provided in an outer surrounding fixed body provided with a current excitation type coil made of an insulated winding. An electromagnetic proportional pressure control valve having a proportional solenoid in which an adjuster is movably fitted is formed at a predetermined interval on one side of the fixed body. The fluid inlet side passage and the fluid outlet side passage and the drain passage located in the middle of the two passages, and the through hole formed inside the fixed body from one side thereof. A sleeve having an inlet port communicating with the fluid inlet-side passage and an outlet port communicating with the fluid outlet-side passage, and the other end of the through hole. A blind plug fitted on the sleeve, a retaining ring provided on one end face of the sleeve, and a side of the blind plug. A resilient panel which is instrumentation wearing surface, and along one an inner circumferential surface of the scan rie Bed by its being slidably fitted, and the resilient panel bullets germination Therefore, a plunger having a spool function that is constantly urged to the retaining ring side is provided, in which the above-mentioned brassiere is one side of the plunger. The first and second small-diameter portions, which communicate with the inlet port and the outlet port of the sleeve and the drain passage, respectively, on an outer peripheral surface portion extending substantially from the center. A second and a third constricted portion are sequentially provided, and the plunger is provided on the fluid inlet side passage according to the resilience of the bullet-emitting panel and the fluid outlet pressure of the fluid. When a current is applied to the coil in a direction in which the communication between the fluid inlet side passage and the fluid outlet side passage is interrupted, and the coil is connected to the fluid inlet side passage by the action of a proportional solenoid. An electromagnetic proportional pressure control valve characterized in that it can be slid in a direction allowing communication with the outlet side passage. Subjected to Ru.
本発明の第 2 態様に よれば、 上記第 1 態様に記載の電 磁比例圧力制御弁であ っ て、 前記プ ラ ン ジ ャ がそ の外周 面 に 固着 さ れた低摩擦係数材か ら成 る摺接 リ ン グを有 し 該搢接 リ ン グを介 して前記ス リ ー ブ内周面に嵌装さ れた こ と を特徵 と す る 電磁比例圧力制御弁が提供 さ れ る 。 According to a second aspect of the present invention, there is provided the electromagnetic proportional pressure control valve according to the first aspect, wherein the plunger is made of a low coefficient of friction material fixed to an outer peripheral surface thereof. An electromagnetic proportional pressure control valve is provided which has a sliding contact ring formed therein and which is fitted to the inner peripheral surface of the sleeve via the contact ring. .
上記各態様を有す る本発明 に よ れば、 プラ ン ジ ャ 自体 を比例 ソ レ ノ ィ ド の作用 と パネ力 と で摺動 し て出 口側圧 力 を比例 ソ レ ノ ィ ドの コ イ ル通電量に比例 し て制御す る こ と がで き る と 共に、 ロ ッ ドゃス プー ルが不要 と な る か ら部品点数が少な く な つ て コ ス ト 安 と な る ば力、 り か、 各 部分が凹んだ り 、 す り へ つ た り せずに耐久性が向上す る ま た、 比例 ソ レ ノ ィ ドの作用でプラ ン ジ ャ を引 き動か
すので、 座屈傾向 と な ら ず ヒ ス テ リ シ ス を小 さ く で き る さ ら に、 剛性の大 き な プラ ン ジ ャ の外周面に設けた搢 接 リ ン グを固定側に嵌合 し て、 そ の摺接 リ ン グに よ っ て プラ ン ジ ャ を固定側に摺動 さ せ る ので、 摺接 リ ン グの真 円度を確保 し て ブラ ン ジ ャ の搢動抵抗を低減で き る。 According to the present invention having each of the above aspects, the plunger itself is slid by the action of the proportional solenoid and the panel force, and the outlet side pressure is reduced by the proportional solenoid. If it is possible to control in proportion to the amount of current applied to the coil, and it is not necessary to use a load pool, the number of parts will be reduced and the cost will be reduced. The durability is improved without force, cracking or slipping of each part, and pulling the plunger by the action of a proportional solenoid As a result, the hysteresis can be reduced without buckling and the tangential ring provided on the outer peripheral surface of the rigid rigid plunger can be fixed. And the sliding ring is used to slide the plunger to the fixed side, so the roundness of the sliding ring is ensured to ensure the roundness of the sliding ring. Dynamic resistance can be reduced.
前記な ら びに他の本発明 の 目 的、 態様、 そ し て利点は 本発明 の原理 に合致す る 好適な具体例が実施例 と し て示 さ れてい る 以下の記述お よ び添附の 図面に関連 し て説明 さ れ る こ と に よ り 、 当該技術の熟達者に と っ て明 ら か に な る であ ろ う 。 The above and other objects, aspects, and advantages of the present invention are described in the following description and appendix in which preferred embodiments are shown as examples that are consistent with the principles of the present invention. What will be described in connection with the drawings will be apparent to those skilled in the art.
図面の簡単な説明 BRIEF DESCRIPTION OF THE FIGURES
第 1 図 は本発明の電磁比例圧力制御弁の一具体例を示 す全体概略断面図、 FIG. 1 is an overall schematic sectional view showing a specific example of the electromagnetic proportional pressure control valve of the present invention,
第 2 図 は第 1 図図示の具体例に用 い ら れ る ス リ ー ブの 斜視図、 FIG. 2 is a perspective view of a sleeve used in the specific example shown in FIG. 1,
第 3 図 は第 1 図に お け る m— m線に沿 っ た断面図、 第 4 図 は比例 ソ レ ノ ィ ドの変形例を示す断面図、 第 5 図 は比例 ソ レ ノ ィ ドの も う 1 つ の変形例を示す断 面図、 Fig. 3 is a cross-sectional view taken along the line m-m in Fig. 1, Fig. 4 is a cross-sectional view showing a modification of the proportional solenoid, and Fig. 5 is a proportional solenoid. Sectional view showing another modified example,
第 6 図 は比例 ソ レ ノ ィ ドの従来例を示す断面図、 そ し て、 Fig. 6 is a cross-sectional view showing a conventional example of a proportional solenoid, and
第 7 図 は電磁比例圧力制御弁の従来例を示す全体概略 断面図であ る 。
好 ま し い具体例の詳細な説明 FIG. 7 is an overall schematic sectional view showing a conventional example of an electromagnetic proportional pressure control valve. Detailed description of preferred examples
以下、 添付の図面に関連 し て本発明の具体例を詳細に 説明す る 。 Hereinafter, specific examples of the present invention will be described in detail with reference to the accompanying drawings.
第 1 図乃至第 3 図に示 さ れ る よ う に、 本発明 の電磁比 例圧力制御弁は筒状の ボデ一 2 0 の一側に ス リ ー ブ 2 2 を、 他側 に盲栓 2 1 をそれぞれ嵌合 し て固定体と し、 そ の ボデー 2 0 の 内部に絶縁巻線か ら な る電流励起型 コ ィ ル 2 4 を設け る と 共に、 ス リ ー ブ 2 2 の 内周面に摺接す る よ う に ブラ ン ジ ャ 2 5 を摺動 自在に嵌揷 し て比例 ソ レ ノ イ ド 2 6 と す る 。 As shown in FIGS. 1 to 3, the electromagnetic proportional pressure control valve of the present invention has a sleeve 22 on one side of a cylindrical body 20 and a blind plug on the other side. 21 are fitted to each other to form a fixed body, and a current excitation type coil 24 made of an insulated winding is provided inside the body 20 and the inside of the sleeve 22 is provided. A bracket 25 is slidably fitted so as to be in sliding contact with the peripheral surface to form a proportional solenoid 26.
前記ス リ ー ブ 2 2 はボデ一 2 0 と面一と な る よ う に嵌 合 し 、 かつ ス リ ー ブ 2 2 の一側に設け ら れた抜け止め リ ン グ 2 7 で抜け止め さ れ、 ス リ ー ブ 2 2 に は入口 ポ ー ト 2 8 と 出 口 ポ ー ト 2 9 が形成 さ れてお り 、 そ の入口 · 出 口 ポ ー ト 2 8 , 2 9 はボデー 2 0 に形成 し た入口孔 3 0 、 出 口孔 3 1 に連通 し てい る 。 つ ま り 、 ス リ ー ブ 2 2 は第 4 図の よ う に外周二面平滑部 2 2 a , 2 2 b が形成さ れ、 入口 · 出 口 ポ ー ト 2 8 , 2 9 は外周二面平滑部 2 2 a , 2 2 b に開 口 し、 かつ ボデー 2 0 の孔 3 2 と の 間に入口 孔 3 0 、 出 口孔 3 1 を構成 し てい る 。 The sleeve 22 is fitted so as to be flush with the body 20, and is prevented by a retaining ring 27 provided on one side of the sleeve 22. The sleeve 22 has an inlet port 28 and an outlet port 29, and the inlet and outlet ports 28 and 29 are connected to the body 2 It communicates with the inlet hole 30 formed at 0 and the outlet hole 31. That is, as shown in Fig. 4, the sleeve 22 has two outer peripheral flat surfaces 22a and 22b, and the inlet and outlet ports 28 and 29 are formed on the outer peripheral surface. Openings are formed in the flat surfaces 22 a and 22 b, and an inlet hole 30 and an outlet hole 31 are formed between the opening and the hole 32 of the body 20.
前記プラ ン ジ ャ 2 5 に は軸孔 3 3 が形成 さ れ、 外周面 に第 1 ♦ 第 2 ♦ 第 3 括れ部 3 4 , 3 5， 3 6 が順次形成 さ れ、 盲栓 2 1 と の 間に設け たバネ 3 7 で リ ン グ 2 7 に 当接付勢 さ れて入口 ポ ー ト 2 8 と 出 口 ポ ー ト 2 9 を遮断
す る 位置 と な り 、 コ イ ル 2 4 が通電 さ れ る こ と でプラ ン ジ ャ 2 5 が入 口 ポ ー ト 2 8 と 出 口 ポ ー ト 2 8 と を互い に 連通す る 方向 （図に おい て右側） に摺動す る よ う に して あ O 0 A shaft hole 33 is formed in the plunger 25, and first, second, and third constricted portions 34, 35, and 36 are sequentially formed on the outer peripheral surface. Between the inlet port 28 and the outlet port 29 by being urged against the ring 27 by the spring 37 provided between them. The coil 24 is energized, and the plunger 25 communicates the inlet port 28 and the outlet port 28 with each other. (To the right in the figure).
前記ボデ— 2 0 は弁本体 3 8 に取付け ら れ、 弁本体 3 8 に流入ポ ー ト 3 9 、 流出 ポ ー ト 4 0 、 タ ン ク ポ ー ト 4 1 が形成 し てあ り 、 流入ポ ー ト 3 9 は入口孔 3 0 、 铳出 ポ — ト 4 0 は 出 口孔 3 1 、 タ ン ク ポ ー ト 4 1 は軸孔 3 3 に そ れぞれ連通 し て い る 。 The body 20 is attached to a valve body 38, and an inflow port 39, an outflow port 40, and a tank port 41 are formed in the valve body 38, and the inflow port is formed. Port 39 communicates with inlet hole 30, outlet port 40 communicates with outlet hole 31, and tank port 41 communicates with shaft hole 33.
前記プ ラ ン ジ ャ 2 5 の一端側外径 d , は他端側外樓 d 2 よ り 大 き く な つ て、 出 口側圧力 に よ っ て プラ ン ジ ャ 2 5 は入口孔 2 8 と 出 口孔 2 9 と の連通を遮断す る 方向 の力が作用す る よ う に し てあ り 、 こ れに よ つ て比例 ソ レ ノ ィ ド 1 6 の 引力、 つ ま り コ ィ ノレ 2 4 への通電量 （電流） に比例 し た 出 口側圧力が得 ら れ る 電磁比例圧力制御弁を 構成 し てい る 。 The outer diameter d, at one end of the plunger 25, is larger than the outer diameter d2 at the other end, and the plunger 25 is formed into an inlet hole 2 by an outlet pressure. A force is applied in a direction that blocks the communication between the port 8 and the outlet hole 29, and as a result, the attractive force of the proportional solenoid 16 is reduced. An electromagnetic proportional pressure control valve that can obtain the outlet pressure in proportion to the amount of current (current) supplied to the fins 24 is configured.
次に， 上記 し た比例 ソ レ ノ ィ ドの変形例 と し て、 第 4 図に示すよ う に、 プラ ン ジ ャ 5 の外周面 5 a に小径外周 面部 8 を形成 し 、 こ の小径外周面部 2 に取付溝 9 を形成 す る と 共に、 そ の取付溝 9 に テ フ ロ ン な どの低摩擦係数 材か ら 成 る 摺接 リ ン グ 1 0 を取付け、 そ の撢接 リ ン ダ 1 0 の外周面 1 0 a をプラ ン ジ ャ 5 の外周面 5 a と 同一径 と し 、 該摺接 リ ン グ 1 0 を介 し てプラ ン ジ ャ 5 を ス リ ー ブ 4 の 内周面に沿 っ て摺動 自 在 と さ せ る こ と がで き る 。
例え ば、 摺接 リ ン グ 1 0 を取付けた後に摺接 リ ン グ 1 0 と ブラ ン ジ ャ 5 の外周面を切削加工 し て同一径 とす る 。 Next, as a modified example of the above-described proportional solenoid, as shown in FIG. 4, a small-diameter outer peripheral surface portion 8 is formed on the outer peripheral surface 5a of the plunger 5, and the small-diameter outer peripheral portion 8 is formed. A mounting groove 9 is formed in the outer peripheral surface portion 2, and a sliding ring 10 made of a material having a low coefficient of friction such as Teflon is mounted in the mounting groove 9. The outer peripheral surface 10 a of the damper 10 has the same diameter as the outer peripheral surface 5 a of the plunger 5, and the plunger 5 is connected to the sleeve 4 via the sliding contact ring 10. It can be made to slide along the inner peripheral surface. For example, after attaching the sliding ring 10, the outer peripheral surfaces of the sliding ring 10 and the bracket 5 are cut to have the same diameter.
さ ら に、 別の変形例 と し て、 第 5 図に示すよ う に、 搢 接 リ ン グ 1 0 を本体 1 の 内周面に嵌合 し 、 かつ プラ ン ジ ャ 5 の外周面 5 a を弁本体 6 の孔 6 a に嵌合 し て も良い こ の場合、 中間部が小径外周面 と な っ て弁本体 6 の孔 6 a に搢接 し てい な い ので、 プラ ン ジ ャ 5 の外周面 5 a と 弁本体 6 の孔 6 a と の加工精度が若干悪 く と も ス ム ー ズに摺動で き る 。
Further, as another modified example, as shown in FIG. 5, the connecting ring 10 is fitted to the inner peripheral surface of the main body 1 and the outer peripheral surface 5 of the plunger 5 is fitted. a may be fitted into the hole 6 a of the valve body 6 .In this case, the intermediate portion is not in contact with the hole 6 a of the valve body 6 as the small-diameter outer peripheral surface. Although the processing accuracy of the outer peripheral surface 5a of 5 and the hole 6a of the valve body 6 is slightly poor, the sliding can be performed smoothly.
Claims
1 .絶縁巻線か ら な る 電流励起型 コ イ ルを備え た外包囲固 定体内 に可動部材 と し ての ブラ ン ジ ャ を摺動 自在に嵌装 し た比例 ソ レ ノ ィ ドを有す る 電磁比例圧力制御弁 におい て、 前記固定体の一側に互い に所定間隔をおい て形成 さ れた流体入口側通路お よ び流体出 口側通路な ら びに両通 路の 中間に位置す る ド レ ン通路 と 、 前記固定体の 内部に 形成 さ れた貫通孔のー側か ら嵌装 さ れ、 前記流体入口側 通路 と連通す る入口 ポ ー ト と前記流体出 口側通路 と 連通 す る 出 口 ポ ー ト と を有す る ス リ ー ブ と 、 前記貫通孔の他 側か ら嵌装 さ れた盲栓 と 、 前記ス リ ー ブの一側端面に設 け ら れた抜け止め リ ン グ と 、 前記盲栓の一側端面に装着 さ れた弾発パネ と 、 そ し て前記ス リ ー ブの 内周面 に沿 つ て摺動可能に嵌装 さ れ、 かつ前記弾発パネ の弾発 に よ つ て前記抜け止め リ ン グ側に常時付勢さ れてい る ス プ一 ル機能を有す る プラ ン ジ ャ と を含み、 そ こ に お い て前記 プラ ン ジ ャ がそ の一側力、 ら ほぼ中央部に わ た る 外周面部 に前記ス リ ー ブの入口 ポ ー ト お よ び出 口 ポ ー 卜 な ら びに 前記 ド レ ン通路 に そ れぞれ連通す る 小径の第 1 、 第 2 そ し て第 3 括れ部を順次有 し、 ま た前記プラ ン ジ ャ が前記 弾発パネ の弾発力 と 流体の前記流体出 口側圧力 と に よ つ て前記流体入口側通路 と前記流体出 口側通路 と の連通を 遮断す る 方向 に、 そ し て前記 コ イ ルに電流が流 さ れた と き に は比例 ソ レ ノ ィ ドの作用で前記流体入口側通路 と 前
記出 口側通路 と の連通を許す方向 に摺動せ し め られ る こ と を特徵 と す る 電磁比例圧力制御弁。 1. A proportional solenoid, in which a brassier as a movable member is slidably fitted in an outer fixed body provided with a current excitation type coil composed of insulated windings. In the electromagnetic proportional pressure control valve, the fluid inlet side passage and the fluid outlet side passage formed at a predetermined distance from one side of the fixed body, and an intermediate portion between the two passages. A drain passage positioned therein; an inlet port fitted into the fixed body from a side of a through-hole formed inside the fixed body; and an inlet port communicating with the fluid inlet side passage and the fluid outlet side. A sleeve having an outlet port communicating with the passage, a blind plug fitted from the other side of the through hole, and a blind plug provided on one end face of the sleeve; A retaining ring that has been removed, a resilient panel mounted on one end face of the blind plug, and the inside of the sleeve. It has a spool function that is fitted slidably along the surface and is constantly urged to the retaining ring side by the resilience of the resilient panel. A plunger, and the plunger is located at one side of the outer peripheral surface extending substantially to the center, and the entrance port of the sleeve and the plunger. It has first, second, and third constriction portions each having a small diameter communicating with the outlet port and the drain passage, respectively, and the plunger is provided with the bullet. In the direction in which the communication between the fluid inlet side passage and the fluid outlet side passage is interrupted by the resilience of the panel and the fluid outlet side pressure of the fluid, and to the coil. When a current is supplied, the fluid inlet side passage is An electromagnetic proportional pressure control valve that is slidable in a direction that allows communication with the outlet side passage.
2 .第 1 請求項に記載の電磁比例圧力制御弁であ っ て、 前 記ブラ ン ジ ャ がそ の外周面に固着 された低摩擦係数材か ら成 る摺接 リ ン グを有 し、 該搢接 リ ン グを介 し て前記ス リ 一ブ内周面に嵌装 さ れた こ と を特徴 と す る 電磁比例圧 力制御弁。
2. The electromagnetic proportional pressure control valve according to claim 1, wherein the blower has a sliding contact ring made of a low friction coefficient material fixed to an outer peripheral surface thereof. An electromagnetic proportional pressure control valve, which is fitted on the inner peripheral surface of the sleeve via the connection ring.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25702989A JPH03121386A (en) | 1989-10-03 | 1989-10-03 | Solenoid proportional pressure control valve |
| JP1/257029 | 1989-10-03 | ||
| JP1/115793U | 1989-10-03 | ||
| JP11579389U JPH0356107U (en) | 1989-10-03 | 1989-10-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1991005195A1 true WO1991005195A1 (en) | 1991-04-18 |
Family
ID=26454234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1990/001278 WO1991005195A1 (en) | 1989-10-03 | 1990-10-03 | Proportional pressure control solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO1991005195A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0878652A1 (en) * | 1997-05-13 | 1998-11-18 | C.E.I. s.r.l. | Solenoid slide valve, particularly for fuel supply to diesel engines |
| WO1999018380A1 (en) * | 1997-10-08 | 1999-04-15 | Vickers, Incorporated | Low pressure solenoid valve |
| EP1582794A3 (en) * | 2004-03-29 | 2005-12-21 | Aisin Seiki Kabushiki Kaisha | Electromagnetic actuator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5632209U (en) * | 1979-08-16 | 1981-03-30 | ||
| JPS62274174A (en) * | 1986-05-21 | 1987-11-28 | Toyoda Mach Works Ltd | Linear solenoid valve |
| JPH0216879U (en) * | 1988-07-19 | 1990-02-02 |
-
1990
- 1990-10-03 WO PCT/JP1990/001278 patent/WO1991005195A1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5632209U (en) * | 1979-08-16 | 1981-03-30 | ||
| JPS62274174A (en) * | 1986-05-21 | 1987-11-28 | Toyoda Mach Works Ltd | Linear solenoid valve |
| JPH0216879U (en) * | 1988-07-19 | 1990-02-02 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0878652A1 (en) * | 1997-05-13 | 1998-11-18 | C.E.I. s.r.l. | Solenoid slide valve, particularly for fuel supply to diesel engines |
| WO1999018380A1 (en) * | 1997-10-08 | 1999-04-15 | Vickers, Incorporated | Low pressure solenoid valve |
| US5918635A (en) * | 1997-10-08 | 1999-07-06 | Vickers, Incorporated | Low pressure solenoid valve |
| EP1582794A3 (en) * | 2004-03-29 | 2005-12-21 | Aisin Seiki Kabushiki Kaisha | Electromagnetic actuator |
| US7207546B2 (en) | 2004-03-29 | 2007-04-24 | Aisin Seiki Kabushiki Kaisha | Electromagnetic actuator |
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