JPH09222074A - Electromagnetic pump - Google Patents
Electromagnetic pumpInfo
- Publication number
- JPH09222074A JPH09222074A JP8052434A JP5243496A JPH09222074A JP H09222074 A JPH09222074 A JP H09222074A JP 8052434 A JP8052434 A JP 8052434A JP 5243496 A JP5243496 A JP 5243496A JP H09222074 A JPH09222074 A JP H09222074A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic
- pump
- filter
- hole
- solenoid valve
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
- F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/20—Filtering
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は電磁ポンプに係り、特
に電磁弁内蔵型に用いるに適した電磁ポンプに関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic pump, and more particularly to an electromagnetic pump suitable for use in a solenoid valve built-in type.
【０００２】[0002]
【従来の技術】従来、電磁弁内蔵型の電磁ポンプ、即ち
電磁プランジャの駆動コイルの磁気力を利用して電磁弁
を開閉させる構造の電磁ポンプ（特公昭５２−３８２４
３号公報）は公知である。2. Description of the Related Art Conventionally, an electromagnetic pump having a built-in electromagnetic valve, that is, an electromagnetic pump having a structure for opening and closing the electromagnetic valve by utilizing the magnetic force of a drive coil of an electromagnetic plunger (Japanese Patent Publication No. 52-3824).
No. 3) is publicly known.
【０００３】この公知の電磁ポンプの電磁弁としては、
実公昭５７−２６０５５号公報に示す通り、吐出弁継手
２５内に形成の空間内に、可動鉄片２４が設けられ、ば
ね３２で吐出口３１を閉じ方向に付勢されており、電磁
コイル２の通電時に磁力にて可動鉄片２４がばね３２に
抗して引き寄せられ、吐出口３１が開かれ、流体が吐出
口３１を通り流出するが、無通電となると、ばね３２で
可動鉄片２４が弁座３３に着座して吐出口３１が閉じら
れる構造である。As a solenoid valve of this known solenoid pump,
As shown in Japanese Utility Model Publication No. 57-26055, a movable iron piece 24 is provided in a space formed in the discharge valve joint 25, and a spring 32 biases the discharge port 31 in a closing direction. When energized, the movable iron piece 24 is attracted by the magnetic force against the spring 32, the discharge port 31 is opened, and the fluid flows out through the discharge port 31. This is a structure in which the discharge port 31 is closed by sitting on 33.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、電磁ポ
ンプには、稼働部品としてピストン９、電磁プランジャ
ー１があって小さな金属片が削り取られた摩耗屑が流出
し、また通孔などの穿設加工時に発生し残留する削屑な
どにより、電磁弁の可動鉄片２４と吐出継手２５との間
に挟まって、吐出口３１が完全に閉塞されないことが発
生し、電磁ポンプがボイラーのポンプとして使用された
場合には、油が流出し、この流出する油にて不完全燃焼
する恐れがあった。However, the electromagnetic pump has the piston 9 and the electromagnetic plunger 1 as the operating parts, and wear debris from which a small metal piece has been scraped out flows out, and a drilling process such as a through hole is performed. Occasionally, due to shavings and the like generated and remaining, the discharge port 31 was not completely blocked by being sandwiched between the movable iron piece 24 of the solenoid valve and the discharge joint 25, and the electromagnetic pump was used as a pump for the boiler. In this case, the oil leaked out, and there was a risk of incomplete combustion with the flowing out oil.
【０００５】摩耗屑や削屑が外部への流出を防ぐ目的の
ため、当出願人は、実開昭５９−４９７８５号を提案し
たが、この構成では電磁弁より下流にストレーナが設け
られている関係から摩耗屑、削屑は取り除くことができ
るが、前例で示した電磁弁の不都合は解消されない。The applicant of the present application has proposed Japanese Utility Model Laid-Open No. 59-49785 for the purpose of preventing wear debris and shavings from flowing out, but in this configuration, a strainer is provided downstream of the solenoid valve. Due to the relationship, wear debris and shavings can be removed, but the inconvenience of the solenoid valve shown in the previous example cannot be eliminated.
【０００６】そこで、この発明は、電磁ポンプ内部に摩
耗屑、削屑による影響を少なくして電磁弁の完全なる閉
止を得ることを課題とするものである。Therefore, an object of the present invention is to reduce the influence of wear debris and shavings inside the electromagnetic pump to achieve complete closure of the electromagnetic valve.
【０００７】[0007]
【課題を解決するための手段】前述の課題を解決するた
め、この発明の電磁ポンプは、電磁コイルへのパルス電
流の印加により往復動されるピストンと吸入弁と吐出弁
の協動作業によりポンプ室内の圧力変動が生じて吸入孔
より液体を吸込み、吐出孔より液体を吐出させると共
に、一端が磁気ロッドに接する電磁弁用スプリングにて
電磁可動片を閉止方向へ押圧して吐出孔を閉じ、前記電
磁コイルへの通電にて吐出孔が開かれる電磁弁を持ち、
前記磁気ロッドに形成の通孔にフィルタを設けたことに
ある（請求項１）。In order to solve the above-mentioned problems, an electromagnetic pump according to the present invention is a pump operated by a piston, a suction valve and a discharge valve which are reciprocated by application of a pulse current to an electromagnetic coil. The pressure in the chamber fluctuates to suck the liquid from the suction hole and discharge the liquid from the discharge hole, and at the same time, the electromagnetic valve spring whose one end is in contact with the magnetic rod pushes the electromagnetic movable piece in the closing direction to close the discharge hole. With a solenoid valve whose discharge hole is opened by energizing the electromagnetic coil,
A filter is provided in the through hole formed in the magnetic rod (claim 1).
【０００８】したがって、電磁ポンプ内部の残留する削
屑や可動部により発生する摩耗屑が流体と共に流れる
が、電磁弁の流入側のフィルタにて捕らえられ、電磁弁
の閉止に悪影響を与えないものである。[0008] Therefore, although the residual scraps inside the electromagnetic pump and the wear scraps generated by the movable part flow with the fluid, they are caught by the filter on the inflow side of the solenoid valve and do not adversely affect the closing of the solenoid valve. is there.
【０００９】また、この発明の電磁ポンプのフィルタが
フィルタ押さえに一体化され、前記電磁弁用スプリング
の一端により磁気ロッドに押し付けられていることにあ
る（請求項２）。Further, the filter of the electromagnetic pump of the present invention is integrated with the filter retainer and is pressed against the magnetic rod by one end of the electromagnetic valve spring (claim 2).
【００１０】したがって、フィルタの取付には、電磁弁
用スプリングにて押し付けられて取付られるので、特別
の取付固定手段を必要としない。Therefore, since the filter is mounted by being pressed by the solenoid valve spring, no special mounting and fixing means is required.
【００１１】[0011]
【発明の実施の形態】以下、この発明の実施の形態を図
面により説明する。図１乃至図３において、電磁ポンプ
は、鉄などの磁性材で形成されたケース４内に、断続電
流（パルス電流）が印加される電磁コイル２を有する。
この電磁コイル２は樹脂製のボビン３に電線が巻回され
て形成されるもので、このボビン３の中央を貫通して形
成された貫通孔には、金属性で非磁性材のガイドパイプ
５が嵌挿されている。また上板６及び下板７は前記ボビ
ン３の上端及び下端に配され、前記ケース４と共に磁気
回路を構成している。Embodiments of the present invention will be described below with reference to the drawings. 1 to 3, the electromagnetic pump has an electromagnetic coil 2 to which an intermittent current (pulse current) is applied in a case 4 formed of a magnetic material such as iron.
The electromagnetic coil 2 is formed by winding an electric wire around a resin bobbin 3, and a guide pipe 5 made of a metallic and non-magnetic material is provided in a through hole formed through the center of the bobbin 3. Has been inserted. The upper plate 6 and the lower plate 7 are arranged at the upper and lower ends of the bobbin 3 and constitute a magnetic circuit together with the case 4.
【００１２】前記ガイドパイプ５の上方には、磁気ロッ
ド８が配され、さらに、このガイドパイプ５の下端は、
Ｏリング９を介してポンプ本体１０に嵌挿されている。
前記磁気ロッド８は鉄等の磁性材で形成され、この磁気
ロッド８の略下半分はＯリング１１を介して前記ガイド
パイプ５に嵌挿され、また磁気ロッド８の残りの上半分
はＯリング１２を介して下記する吐出継手３６の胴部３
８に嵌挿されており、内部には縦方向に通孔１３が貫通
している。A magnetic rod 8 is arranged above the guide pipe 5, and the lower end of the guide pipe 5 is
It is fitted into the pump body 10 via the O-ring 9.
The magnetic rod 8 is made of a magnetic material such as iron. The lower half of the magnetic rod 8 is fitted into the guide pipe 5 through an O-ring 11, and the upper half of the magnetic rod 8 is an O-ring. The body part 3 of the discharge joint 36 described below via 12
It is inserted in 8, and the through hole 13 penetrates the inside in the vertical direction.
【００１３】電磁プランジャ１５は、鉄などの磁性材に
よって略円筒状に形成されたもので、上部スプリング１
６と下部スプリング１７とによって前記ガイドパイプ５
内に形成の電磁プランジャ作動室１９内に摺動自在に支
持される。そして、この電磁プランジャ１５によって、
電磁プランジャ作動室１９は、上部スプリング室１９ａ
と下部スプリング室１９ｂを連通している。また、この
電磁プランジャ１５の下部には、ピストン２１が固着さ
れている。The electromagnetic plunger 15 is formed of a magnetic material such as iron into a substantially cylindrical shape.
6 and the lower spring 17 make the guide pipe 5
It is slidably supported in the electromagnetic plunger working chamber 19 formed therein. And by this electromagnetic plunger 15,
The electromagnetic plunger working chamber 19 has an upper spring chamber 19a.
And the lower spring chamber 19b. A piston 21 is fixed to the lower part of the electromagnetic plunger 15.
【００１４】ピストン２１は、前記ポンプ本体１０に形
成された孔２２にＯリング２３を介して嵌挿された円筒
状のシリンダ２４内に挿入され、前記電磁プランジャ１
５の往復動に伴って往復する。なお、前記シリンダ２４
はポンプ本体１０に形成の前記電磁プランジャ作動室１
９と連通する孔２２内に挿入され、中程で外周に形成の
フランジ２５がポンプ本体１０にＯリング２３を介して
係合されている。そしてフランジ２５は、前記下部スプ
リング１７の下端を支える働きをもしている。The piston 21 is inserted into a cylindrical cylinder 24 which is fitted in a hole 22 formed in the pump body 10 through an O-ring 23, and the electromagnetic plunger 1
It reciprocates with the reciprocating motion of 5. The cylinder 24
Is the electromagnetic plunger working chamber 1 formed in the pump body 10.
A flange 25, which is inserted into the hole 22 communicating with 9 and is formed on the outer periphery in the middle, is engaged with the pump body 10 via an O-ring 23. The flange 25 also functions to support the lower end of the lower spring 17.
【００１５】ポンプ室２７は、ポンプ本体１０と前記ピ
ストン２１の先端及び下記する吸入弁（図示せず）と吐
出弁（図示せず）によって画成される空間で、前記ピス
トン２１の往復動によってその容積を変化させ、吸入弁
及び吐出弁と協動してポンプ作用を行なうものである。
具体的には、ピストン２１が上昇してポンプ室２７の容
積が拡大し、ポンプ室２７内が負圧となると、吸入弁が
開いて吸入孔３０より流体（燃料）を吸い込み、またピ
ストン２１が下降してポンプ室２７の容積が減少し、ポ
ンプ室２７の正圧となると、吐出弁を開いて燃料を加圧
して前記電磁プランジャ作動室１９内に吐出するもので
ある。The pump chamber 27 is a space defined by the pump body 10, the tip of the piston 21, and an intake valve (not shown) and a discharge valve (not shown) described below. The volume is changed and the pump action is performed in cooperation with the suction valve and the discharge valve.
Specifically, when the piston 21 rises to increase the volume of the pump chamber 27 and the inside of the pump chamber 27 becomes negative pressure, the suction valve opens and sucks fluid (fuel) from the suction hole 30, and the piston 21 When the volume of the pump chamber 27 decreases and the pump chamber 27 has a positive pressure, the discharge valve is opened to pressurize the fuel and discharge it into the electromagnetic plunger working chamber 19.
【００１６】吐出継手３６は、本体３７とこれに連なる
胴部３８を有し、前述の如くこの胴部３８がボビン３内
に嵌挿され、さらに磁気ロッド８の上部に被嵌している
ものである。また前記胴部３８内には電磁弁収納室３９
が形成されており、該電磁弁収納室３９には、電磁弁４
０が収納され、電磁弁スプリング４１にて押圧されてお
り、電磁コイル２に非通電時に吐出孔４２を中心に形成
の弁座４３に着座され該吐出孔４２を閉じ、通電時に
は、前記磁気ロッド８側へ電磁弁スプリング４１に抗し
て引かれて吐出孔４２が開かれるものである。The discharge joint 36 has a main body 37 and a body portion 38 connected to the body 37. As described above, the body portion 38 is fitted into the bobbin 3 and further fitted to the upper portion of the magnetic rod 8. Is. In the body 38, a solenoid valve storage chamber 39
And a solenoid valve 4 is formed in the solenoid valve storage chamber 39.
0 is accommodated and is pressed by the electromagnetic valve spring 41, and is seated on the valve seat 43 formed around the discharge hole 42 when the electromagnetic coil 2 is not energized to close the discharge hole 42. The discharge hole 42 is opened by being pulled toward the 8 side against the solenoid valve spring 41.
【００１７】電磁弁４０は、略円筒状の電磁可動片４４
に弾性を有するつづみ状のゴム弁４５が取付られて構成
されている。そしてゴム弁４５と電磁可動片４４との間
にすき間（通孔）４６を有するように構成されている。The solenoid valve 40 has a substantially cylindrical solenoid movable piece 44.
A rubber-like rubber valve 45 having elasticity is attached to the structure. A gap (through hole) 46 is provided between the rubber valve 45 and the electromagnetic movable piece 44.
【００１８】フィルタ４８は、樹脂性のフィルタ押さえ
４９の中央にフィルタ本体５０が一体に取付られて構成
されている。このフィルタ本体５０は１００メッシュぐ
らいであり、フィルタ押さえ４９の成形時に同時に形成
される。このようなフィルタ４８は、前記磁気ロッド８
の上端で前記通孔１３の径を拡大した大径部１３ａに収
納されて、その上端から前記電磁弁スプリング４１にて
押し付けられて取付けられている。The filter 48 is constructed by integrally mounting a filter body 50 at the center of a resin-made filter holder 49. The filter body 50 has a size of about 100 mesh and is formed at the same time when the filter retainer 49 is molded. Such a filter 48 is used for the magnetic rod 8
Is housed in a large-diameter portion 13a having an enlarged diameter of the through hole 13 at the upper end thereof, and is pressed and attached by the solenoid valve spring 41 from the upper end thereof.
【００１９】上記構成における電磁ポンプ１は、電磁コ
イル２に所定のパルス数（５０〜６０）を持つパルス電
流が印加され、電磁コイル２が励磁されると、磁気ロッ
ド８に磁力が発生して電磁プランジャ１５を上部スプリ
ング１６に抗して吸引し、もって該上部スプリング１６
に反発エネルギーが貯められる。そして、電磁コイル２
が消磁されると、吸磁力が消滅して上部スプリング１６
の反発エネルギーにて下方へ戻される。このような繰り
返しにより電磁プランジャ１５は往復動されることにな
る。In the electromagnetic pump 1 having the above structure, when a pulse current having a predetermined pulse number (50 to 60) is applied to the electromagnetic coil 2 and the electromagnetic coil 2 is excited, a magnetic force is generated in the magnetic rod 8. The electromagnetic plunger 15 is attracted against the upper spring 16 and thus the upper spring 16
Repulsive energy is stored in. And the electromagnetic coil 2
Is demagnetized, the magnetic attraction disappears and the upper spring 16
It is returned downward by the repulsive energy of. The electromagnetic plunger 15 is reciprocated by such repetition.
【００２０】そして、電磁プランジャ１５の往復動は、
ピストン２１に伝えられ、シリンダ２４内を往復動され
る。ピストン２１の往復動即ち、往復動によりポンプ室
２７内の圧力変動が生じ、吸入孔３０は流体を吸引し、
加圧して電磁プランジャ作動室１９内に吐出させ、図示
しないリリーフ弁にて所定圧に調圧され、通孔３を通
り、フィルタ４８を通過し、開かれた電磁弁４０を介し
て吐出孔４２より外部機器へ送り出される。The reciprocating motion of the electromagnetic plunger 15 is
It is transmitted to the piston 21 and reciprocated in the cylinder 24. Due to the reciprocating movement of the piston 21, that is, the reciprocating movement, the pressure in the pump chamber 27 is changed, and the suction hole 30 sucks the fluid.
It is pressurized and discharged into the electromagnetic plunger working chamber 19, regulated to a predetermined pressure by a relief valve (not shown), passes through the through hole 3, through the filter 48, and through the opened electromagnetic valve 40, the discharge hole 42. Sent to an external device.
【００２１】流体中に混入された摩耗屑や削屑は、フィ
ルタ４８を通るので、ここで捕らえられて電磁弁４０ま
でに至らず、電磁可動片４４やゴム弁４５に付着しない
し、また吐出孔４２にも詰まることがなくなった。従っ
て、電磁コイル２にパルス電流の印加が遮断されると、
電磁弁４０が確実に弁座４３に着座して吐出孔４２は閉
じられ、流体の漏れは発生しない。Since the abrasion debris and shavings mixed in the fluid pass through the filter 48, they are trapped there and do not reach the electromagnetic valve 40, do not adhere to the electromagnetic movable piece 44 or the rubber valve 45, and are discharged. The hole 42 is no longer blocked. Therefore, when the application of the pulse current to the electromagnetic coil 2 is cut off,
The solenoid valve 40 is securely seated on the valve seat 43, the discharge hole 42 is closed, and no fluid leakage occurs.
【００２２】[0022]
【発明の効果】以上のように、請求項１記載の発明によ
れば、流体中に混入する摩耗屑や削屑がフィルタにて捕
らえられるので、電磁弁まで至らず、電磁弁の閉止の不
具合が生じるのを解消することが可能となった。請求項
２記載の発明によれば、フィルタは電磁弁用スプリング
にて磁気ロッドに押し付けられて取付られるので、特別
の固定手段を有しなくて良い利点をも有するものであ
る。なお、この発明では電磁弁がポンプ駆動用の磁気力
を利用するものであるが、これに限らず、電磁弁を開閉
する専用の電磁コイルを持つものでも利用できることは
勿論である。As described above, according to the first aspect of the present invention, since abrasion debris and shavings mixed in the fluid are captured by the filter, the solenoid valve cannot be reached and the solenoid valve is closed. It has become possible to eliminate the occurrence of. According to the second aspect of the invention, the filter is attached by being pressed against the magnetic rod by the electromagnetic valve spring, so that there is an advantage that no special fixing means is required. In the present invention, the electromagnetic valve uses the magnetic force for driving the pump. However, the present invention is not limited to this, and it is of course possible to use an electromagnetic coil having a dedicated electromagnetic coil for opening and closing the electromagnetic valve.
【図１】この発明の実施の形態を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.
【図２】同上の要部の横断面図である。FIG. 2 is a transverse sectional view of a main part of the above.
【図３】フィルタの断面図である。FIG. 3 is a cross-sectional view of a filter.
１ 電磁ポンプ ２ 電磁コイル ８ 磁気ロッド １３ 通孔 １５ 電磁プランジャ ２１ ピストン ４０ 電磁弁 ４２ 吐出孔 ４８ フィルタ ４９ フィルタ押え ５０ フィルタ本体 1 Electromagnetic Pump 2 Electromagnetic Coil 8 Magnetic Rod 13 Through Hole 15 Electromagnetic Plunger 21 Piston 40 Solenoid Valve 42 Discharge Hole 48 Filter 49 Filter Presser 50 Filter Body
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成８年４月３０日[Submission date] April 30, 1996
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００４[Correction target item name] 0004
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、電磁ポ
ンプには、稼働部品としてピストン９、電磁プランジャ
ー１があって小さな金属片が削り取られた摩耗屑が流出
し、また通孔などの穿設加工時に発生し残留する削屑な
どにより、電磁弁の可動鉄片２４の弾性を有するつづみ
状の弁２７と吐出継手２５に形成の弁座３３との間に挟
まって、吐出口３１が完全に閉塞されないことが発生
し、電磁ポンプがボイラーのポンプとして使用された場
合には、油が流出し、この流出する油にて不完全燃焼す
る恐れがあった。However, the electromagnetic pump has the piston 9 and the electromagnetic plunger 1 as the operating parts, and wear debris from which a small metal piece has been scraped out flows out, and a drilling process such as a through hole is performed. Due to the shavings that are generated at times and remain, the elastic iron piece 24 of the solenoid valve has elasticity.
When the electromagnetic pump is used as a boiler pump because the discharge port 31 is not completely closed due to being sandwiched between the valve 27 and the valve seat 33 formed on the discharge joint 25, oil will be discharged. There was a risk of spillage and incomplete combustion with this spilled oil.
【手続補正２】[Procedure amendment 2]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】図１[Correction target item name] Fig. 1
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図１】 ─────────────────────────────────────────────────────
FIG. ─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成８年５月１６日[Submission date] May 16, 1996
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１８[Correction target item name] 0018
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１８】フィルタ４８は、樹脂性のフィルタ押さえ
４９の中央にフィルタ本体５０が一体に取付られて構成
されている。このフィルタ本体５０は１００メッシュぐ
らいであり、フィルタ押さえ４９の成形時に同時に形成
される。このようなフィルタ４８は、前記磁気ロッド８
の上端で前記通孔１３の径を拡大した大径部１３ａに収
納されて、その上端から前記電磁弁スプリング４１にて
押し付けられて取付けられている。尚、フィルタ４８を
１００メッシュとすることは、削屑の略０．１ｍｍより
小さいものを通過させて、広くないフィルタ面積の目詰
まりを防止するものであると共に、小さな削屑は挟まれ
ても電磁弁のゴム弁が撓んでシールに不都合が生じない
ことから、選択されたものである。 The filter 48 is constructed by integrally mounting a filter body 50 at the center of a resin-made filter holder 49. The filter body 50 has a size of about 100 mesh and is formed at the same time when the filter retainer 49 is molded. Such a filter 48 is used for the magnetic rod 8
Is housed in a large-diameter portion 13a having an enlarged diameter of the through hole 13 at the upper end thereof, and is pressed and attached by the solenoid valve spring 41 from the upper end thereof. In addition, the filter 48
Setting to 100 mesh means that the size of shavings is about 0.1 mm.
Passing small things, clogging of filter area that is not wide
Not only does it prevent clogging, but small chips are
Even if the rubber valve of the solenoid valve bends, there is no problem with the seal.
That is why it was selected.
【手続補正２】[Procedure amendment 2]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】図１[Correction target item name] Fig. 1
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図１】 FIG.
Claims (2)
往復動されるピストンと吸入弁と吐出弁の協動作業によ
りポンプ室内の圧力変動が生じて吸入孔より液体を吸込
み、吐出孔より液体を吐出させると共に、一端が磁気ロ
ッドに接する電磁弁用スプリングにて電磁可動片を閉止
方向へ押圧して吐出孔を閉じ、前記電磁コイルへの通電
にて吐出孔が開かれる電磁弁を持ち、 前記磁気ロッドに形成の通孔にフィルタを設けたことを
特徴とする電磁ポンプ。1. A pressure fluctuation in a pump chamber occurs due to a cooperative operation of a piston, an intake valve, and a discharge valve, which are reciprocated by application of a pulse current to an electromagnetic coil, so that liquid is sucked through a suction hole and liquid is discharged through a discharge hole. With a solenoid valve that discharges and closes the discharge hole by pressing the electromagnetic movable piece in the closing direction with a solenoid valve spring having one end in contact with the magnetic rod, the discharge hole is opened by energizing the electromagnetic coil, An electromagnetic pump characterized in that a filter is provided in a through hole formed in a magnetic rod.
前記電磁弁用スプリングの一端により磁気ロッドに押し
付けて設けられていることを特徴とする請求項１記載の
電磁ポンプ。2. The filter is integrated with the filter retainer,
The electromagnetic pump according to claim 1, wherein the electromagnetic pump is provided so as to be pressed against a magnetic rod by one end of the electromagnetic valve spring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05243496A JP3232396B2 (en) | 1996-02-15 | 1996-02-15 | Electromagnetic pump |
| KR1019960018701A KR970062329A (en) | 1995-02-15 | 1996-05-30 | Electronic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05243496A JP3232396B2 (en) | 1996-02-15 | 1996-02-15 | Electromagnetic pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09222074A true JPH09222074A (en) | 1997-08-26 |
| JP3232396B2 JP3232396B2 (en) | 2001-11-26 |
Family
ID=12914653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05243496A Expired - Fee Related JP3232396B2 (en) | 1995-02-15 | 1996-02-15 | Electromagnetic pump |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3232396B2 (en) |
| KR (1) | KR970062329A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010121768A (en) * | 2008-11-21 | 2010-06-03 | Toyota Motor Corp | Fluid control valve and fluid control circuit |
-
1996
- 1996-02-15 JP JP05243496A patent/JP3232396B2/en not_active Expired - Fee Related
- 1996-05-30 KR KR1019960018701A patent/KR970062329A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010121768A (en) * | 2008-11-21 | 2010-06-03 | Toyota Motor Corp | Fluid control valve and fluid control circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| KR970062329A (en) | 1997-09-12 |
| JP3232396B2 (en) | 2001-11-26 |
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| Date | Code | Title | Description |
|---|---|---|---|
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