JPS58137684A - Electromagnetic sequence valve - Google Patents

Abstract

PURPOSE:To widen a proportional control range by a method wherein a hysteresis valve is provided in a pipeline connecting the discharging side of an electromagnetic pump and a reserving chamber so as not to return working fluid into the reserving chamber when the discharging pressure of the pump is below a predetermined value. CONSTITUTION:When the pressure of a pressure chamber 17 is increased to a pressure P1 in accordance with the operation of te electromagnetic pump 13, a responsive body 31 is displaced to open an opening and closing valve 45 and gas flows from a path 41 into the path 42. When the discharging flow of the pump 13 is increased and the pressure in the pressure chamber 20 arrives at a pressure P3, the responsive body 32 is displaced, a proportional valve 50 is opened, the hysteresis valve 25 is opened, the discharged fluid of the pump 13 returns into the reserving chamber 14 from the path 24, the pressures in the pressure chambers 17, 20 are determined by the discharging flow amount of the pump 13 and an orifice 26 and the opening degree of the valve 50 is determined by the signal to the pump 13. In case the pressure P2<P3, in which the valve 25 is closed when the pressures in the chambers 17, 20 are decreased, is set near the pressure P1, a pressure range, applicable to the proportional motion of the valve 50, may be widened without any fear that the valve 50 is opened simultaneously with or prior to the opening of the valve 45.

Description

【発明の詳細な説明】 ζＯ尭明紘、電−ポンプ（：よつ１得らｆ１＊圧力を利
用し″Ｃ１ｌ数Ｏｇｆ奄ｔ−りｙス餉御するようＣ：し
大電磁シークンス弁に関する。[Detailed Description of the Invention] ζO Akihiro, Concerning a large electromagnetic sequence valve that uses f1*pressure to control the C1l number Ogf .

タンク内のオイルを電磁ポンプの作用で圧力筒Ｃ：圧送
し、ついでオリフィスを介してタンクじ戻Ｔような循１
１Ｍを形成し、圧力筒内（二発生し大圧力で応動体を変
位させるとと（二より１弁を駆動することが可能である
。″を大２つの圧力ｉｉ！を形成し、七の＠々（：動作
圧力のＪ！！なる応動体を設けることによって、電磁ポ
ンプの吐出圧力が上昇する過程で、１ずＷＩＯ応動体を
駆動し、ついでＩｎ２の応動体を比例−作させるよう會
シーケンス弁を構成でｌる０ζΦツーケンス弁Ｃニジい
１、第２０応動体が比例−作する圧力範囲は、ｊｌｌｌ
の応動体の動作圧力から、電磁ポンプの最大吐出圧力１
での範＠Ｃ：＠らｊ、この比例範囲を広くＴる穴めＣ：
は。Oil in the tank is pumped through the pressure cylinder C by the action of an electromagnetic pump, and then returned to the tank through an orifice.
It is possible to drive one valve from two by displacing the reacting body with a large pressure generated in the pressure cylinder (2). By providing a response body with an operating pressure of J!!, in the process of increasing the discharge pressure of the electromagnetic pump, first the WIO response body is driven, and then the In2 response body is operated proportionally. The pressure range in which the sequence valve is configured and the 0ζΦ Zukens valve C is proportionally operated by the 1st and 20th reaction bodies is jllll
From the operating pressure of the responding body, the maximum discharge pressure of the electromagnetic pump 1
Range @C: @ et al j, hole C to widen this proportional range:
teeth.

能力の大Ｓい電磁ポンプを使わなけｊばならない＠この
発明は、ａ力？大巻い電磁ポンプを使用しなく１％、応
動体の比例ａＳ、″ｆ１１わち被制御流体の比例制御輪
ＩＩを多分（：広くとることがＷＩ能々電磁シーヶｙス
弁を提供することを目的とし１いる０ つぎＣ＝この発明の一実施例！ついて図面を参照して説
明Ｔる。ｔｊＡ１図（：示１電磁シーケンス弁は、油圧
を発生する圧力発生部Ａと、この油圧を変位（＝変換部
る変換部Ｂと、この変換部Ｂ（二よつχ駆動さする制御
部Ｃとで構成さｒａｔいる。この例では、給湯器のよう
力燃焼器Ｃ：供給８ｆる燃料カスの流量を制御Ｔるよう
（：構ＷＲさｆ′１大流童制御藝−を示１゜ 圧力発生部Ａは、コイル１１ｊ？よび（の中心長円を貫
通Ｔる作動１１１２から壜る電磁ポンプ１３をＴ４する
。この電磁ポンプ１３は、貯留１１１４内に収容さｎて
いる作動油を通路１５から、作動部１２円籠：＠引し、
ついで通路１６を経て圧力室１７円（二圧送ＴるようＣ
：働＜ｏｌ大圧力１１１７け、通ｊ１１９を介して１１
２の圧力！　２０　（：連通しているとともに、後で述
べるヒステリシス弁２５と、適当な開口面積を有するオ
リ２イス２６とを設は大通路２４を介して貯１１１１４
（二連通しχいる。し穴がつχ電磁ポンプ１３の動作Ｉ
Ｊ二は、ヒステリシス弁２５が開で６１は、作勧油祉貯
胃賞１４から通路１５、作動部１２、通路１６、圧力室
１７シよび通路１８を通つχ貯留室１４（：戻る鮭銘で
循環し、通路１８に般は六オリフ１ス２１の作用で、電
磁ポンプ１３の吐出流量に応じ大圧力が圧力室１７円Ｃ
：発生する。セしてこの圧力は、通路１９を経て圧力室
２０にも伝遍さｎる。I have to use a high-capacity electromagnetic pump. Is this invention a power? 1% without using a large electromagnetic pump, the proportional aS of the responding body, ``f11, that is, the proportional control wheel II of the controlled fluid may be widened to provide an electromagnetic sheath valve. Objective 1 0 Next C = One embodiment of this invention! This will be explained with reference to the drawings. tj (=conversion section B), and a control section C that drives this conversion section B (two types).In this example, the power combustor C of the water heater: In order to control the flow rate of T, the pressure generating section A is operated by an electromagnetic generator 1112 which passes through the central ellipse of the coil 11j? The pump 13 is operated at T4. This electromagnetic pump 13 draws the hydraulic oil stored in the reservoir 1114 from the passage 15 to the operating section 12.
Then, it passes through the passage 16 and enters the pressure chamber 17 yen (two pressure
: Work<ol large pressure 1117 ke, through j119 11
2 pressure! 20 (: A hysteresis valve 25 which will be described later and an orifice 26 having an appropriate opening area are connected to each other through a large passage 24.
(Double communication χ.
J2 is when the hysteresis valve 25 is open, and 61 is the flow from the working oil welfare storage chamber 14 through the passage 15, the operating section 12, the passage 16, the pressure chamber 17 and the passage 18. Due to the action of six orifices 21 in the passage 18, large pressure is generated in the pressure chamber 17C according to the discharge flow rate of the electromagnetic pump 13.
:Occur. This pressure is then transmitted to the pressure chamber 20 via the passage 19.

−力、電磁ポンプ１３の吸込側の通路１５と吐出側の通
路１６とを連結する８１４７通路２２が形成さｊｌこの
バ１パス通ｊｆ５２２円に、電磁ポンプ１３が正常に動
作している間だけ閉位１１１（二ｍ持場するバイパス弁
２３が設けら１″Ｃいる。し六がって圧力室１７円の圧
力が上昇し六のち（二電僻ポンプ１３の動作が停止Ｔる
と、パ１バス弁２３Ｆｉｌち６；開位１ｉｔ＝移動し、
ζ１によって圧力室１７円の圧力は瞬−（＝開放さする
０この油圧系統を第２図（二示Ｔ０ 圧力発生部Ａ　（二＠接して設けらｆ′１六変挟都Ｂは
、２つの応動体３１ｓ？よび３２を有する。第ｌのえ動
体３１は、圧力ｉ！１１０内部にベロフラムを介し１播
しているとともに、軸７７回Ｃ二Ｓ動自在カロット３３
の先端に固定さ１、スプリング３４４＝よって圧力室１
７円Ｃ：向けて付勢さｎ″Ｃいるｏ１六袷２の応動体３
２は、圧力’ａｉ　２０　（：ペロフラムを介しχ按し
工いるとと％６：、軸方向（：移動目在彦ロッド３５の
先端Ｃ：支持ｓｒｒ’ｔｔ状篩で、スプリング３６≦：
よって圧力１１２０円（＝向けて押圧さ１ている０Ｌ７
ｔがって圧力ｌ！１７および２０内の圧力が上昇すると
、応動体３１および３２は（１ぞ１スプリング３４＄Ｐ
よび３６Ｃ：抗して＄１１１Ｌ、圧力が低）ｖｔ１は元
の位Ｉｌ＆：戻るという動作な杓い、ここじ圧力−変位
変換が豹わする。第２の応動体３２の受圧面積はｊ１１
１Ｏ応動体３１より％／Ｊ％さく、し穴がつ−ｃ＊２の
応動体３２が変位し始める圧力は第１の応動体３１の（
ｎよりｔ高い。- An 8147 passage 22 connecting the suction side passage 15 and the discharge side passage 16 of the electromagnetic pump 13 is formed in this path only while the electromagnetic pump 13 is operating normally. A bypass valve 23 is installed in the closed position 111 (2m) and the pressure in the pressure chamber 17 is increased, and after 6 days (when the operation of the electric pump 13 stops), Pa1 bus valve 23Fil6; open position 1it=move,
The pressure in the pressure chamber 17 is instantaneously opened by ζ1. It has two reaction bodies 31s?
1, spring 344 = pressure chamber 1
7 yen C: Forced towards n''C o1 Rokukin 2 response body 3
2 is the pressure 'ai 20 (: χ through the pelofram and %6:, axial direction (: tip C of moving rod 35: support srr'tt-shaped sieve, spring 36 ≦:
Therefore, the pressure is 1120 yen (= 0L7 is pressed towards 1)
Pressure l! When the pressure in 17 and 20 increases, the response bodies 31 and 32 (1 x 1 spring 34 $P
and 36C: resisting $111L, pressure is low) vt1 returns to the original position Il &: This pressure-displacement conversion occurs. The pressure receiving area of the second response body 32 is j11
The pressure at which the responsive body 32 of 10%/J% and the hole begins to be displaced from the first responsive body 31 is
t higher than n.

制御ｓＣは、入口通路４１．連絡通路４２＄Ｐよび出口
通ｌ８４３を有し、連絡通路４２内Ｃ＝は好１しくＵＶ
ギレータ（＠示せず）が般けらする。入口通路４．１シ
よび連絡通１８４２は、弁座４４の中ｌＩＪ孔を介して
相互−二連通し、この弁座４４Ｃ：は開閉弁４５がスプ
リング４６０作用で圧接−８１１ている。おして開閉弁
４５を支持Ｔる弁ロッド４７は、前記のロッド３３の先
端と当接している。１六連絡通１２１４２および出口通
ｊＩ２１４３は、弁座４８の中心孔を介しχ相互じ連通
し、この弁座４８（：”プリング４９によって比例弁５
０が圧接さｎている。Control sC controls the inlet passageway 41. It has a communication passage 42$P and an outlet passage 1843, and the inside C= of the communication passage 42 is preferably UV-protected.
Gireta (@not shown) is in public. The inlet passage 4.1 and the communication passage 1842 communicate with each other through a hole in the valve seat 44, and the on-off valve 45 is pressed against the valve seat 44C by the action of a spring 460. A valve rod 47 that supports the on-off valve 45 is in contact with the tip of the rod 33. The communication communication 12142 and the outlet communication 12143 communicate with each other through the center hole of the valve seat 48, and the proportional valve 5
0 is in pressure contact.

そしχ比例弁５０の中心部に設けらｎ＋弁ロッド５１は
、七の一端で前記のロッド３６の先端と当接している。The n+ valve rod 51 provided at the center of the χ proportional valve 50 is in contact with the tip of the rod 36 at one end.

この比例弁５０は、弁座４Ｂ（＝密潰し穴全閉位館と、
最も離ｆ′１大全開位値との間の範ｗ！Ｊ内で移ｍｉる
こと福：よって、連絡通路４２から出口通路４３（：流
ｎ％被制御流体、六とえげ燃料ガスの流量を比例制御す
ることができる０第３＠Ｃ：ヒステリシス弁２５の具体
釣力構造の一例を示す。ノーリジング６１円（＝は、中
央部（＝弁体６２を支持Ｔるダイ７フラム６３が設けら
１、この弁体６２は、ノ・ウジング６１とダイアフラム
６３とＯ藺１：ｉ＆けら１大スプリング６４Ｃ）作用で
・ハウジング６１　（二股は大弁座６５に圧接さｆｌて
いる。し大がってこの状態では、圧力１１１７（二連な
る入口ポート６６とダイアフラムＩｉ１＄７との閲はａ
萌ｓｆ１ている０ζζで入口ボート６６１１の圧力は弁
体６２の受圧面にスプリング６１を押圧する方向１：作
用獲るので、七の圧力が設定個に逼獲ると、弁体６２は
スプリング６１Ｃ：抗し″Ｃ９ｆ座６５を醗ｊ、ζ１ｆ
１（＝よって入口ポート６６円の作動流体ダ１アフラム
室６７１：入り、ついで出口ボート６８を経χ貯貿ｉｊ
！１４（：流する。ダ１アフラム６３の受圧面積は、弁
座６５（：摺し工いる状態ての弁体６２の受圧面積より
％着るしく大きいので、弁体６２が弁座６５をわずか（
：１Ｉｌｉｆｌると同時に、ダ１アフラム６３は急激Ｃ
：ｆ位して弁体６２を弁座６５からＩｌｔする方向Ｃ二
５ｌＩＩさせ、この状態は、弁体６２が開＠始め大圧力
より％看るしく低い圧力になる１で保持さする。This proportional valve 50 has a valve seat 4B (=closed hole fully closed position),
The range w between the furthest distance f′1 and the wide open position value! Therefore, it is possible to proportionally control the flow rate of the fuel gas from the communication passage 42 to the outlet passage 43 (: flow rate n% of the controlled fluid, 0th 3rd @C: hysteresis valve). An example of the specific fishing force structure of No. 25 is shown. Due to the action of the large spring 64C), the two prongs of the housing 61 are in pressure contact with the large valve seat 65.In this state, the pressure 1117 (two consecutive inlet ports 66 and Viewing with diaphragm Ii1$7 is a
At 0 ζ ``C9f seat 65, ζ1f
1 (=Therefore, the working fluid at the inlet port 66 yen enters the 1 aphram chamber 671, and then passes through the outlet boat 68 to
! The pressure receiving area of the diaphragm 63 is approximately % larger than the pressure receiving area of the valve body 62 in the state of sliding the valve seat 65 (:), so the valve body 62 slightly touches the valve seat 65 (
: At the same time as 1Ilifl, Da 1 Aflam 63 suddenly C.
:The valve body 62 is moved in the direction C25lII from the valve seat 65 at position f, and this state is maintained at 1, where the pressure becomes noticeably lower than the large pressure by 1% when the valve body 62 opens.

１なわち１ｉｔ如ポンプ１３が動作し又圧力室１７円の
圧力が上昇していく過程で、この圧力が第１の設定１１
Ｐにｉすると、１ず第ｌの応動体３１が質位し、開閉弁
４５を開位＃１３＝移動させる０ζ１によつχ燃料カス
は入口通Ｉｉ！ｉ４１から連絡通路４２Ｃ：流１．つい
でパ１０ットパーナＣ二流ｊてや火さｊる。この段階で
はヒステリシス弁２５に１だ閉の１１であるので、圧力
８１７内の圧力は急速に上昇し、尾動体１７の変位は電
磁ポンプ１３の起動から短四間のうちＣ二朽わｊる。1, that is, as the pump 13 operates and the pressure in the pressure chamber 17 increases, this pressure reaches the first setting 11.
When P is reached, the l-th reaction body 31 moves to the first position, and the opening/closing valve 45 is opened and moved to the position #13=0ζ1, thereby allowing the χ fuel scum to pass through the inlet Ii! From i41 to communication passage 42C: Stream 1. Next, Pa 10 and Pana C are second-rate j Teya Fire. At this stage, the hysteresis valve 25 is closed by 1, so the pressure inside the pressure 817 rises rapidly, and the displacement of the trailing body 17 decreases within a short period of time from the activation of the electromagnetic pump 13. .

つぎ（＝電磁ポンプ１３の吐出流量がさらに増大し、圧
力１１２０円の圧力が第３の設定価Ｐ３１で上昇Ｔると
、応動体３２が変位して比例弁５０が開巻始めるととも
に、ヒステリ９ス弁２５が開と力って、電磁ポンプ１３
から吐出さｎ大作勧油は通１８２４を通つχ貯１ｌＩＷ
’１ｊｉ１４に戻るように循環し、この状態では、圧力
室１７．２０円の圧力は、電磁ポンプ１３の吐出流量と
オリフイス２６の開口面積（＝よって決定さｎる。Ｔ々
わちヒステリシス弁２５がいつ穴ん開い六のちＣ：は、
圧力１ｉ１１７ｓ？よび２Ｏｆ”ｉの圧力は電磁ポンプ
１３の吐出流量に比例し″Ｃ変化し、シ穴がって電磁ポ
ンプ１３のコイル１１に供給さする駆１１１＠号の周１
１歌や波形を変えることＣ：より、比例弁５０の開度な
任意に制御することができる。Next (= when the discharge flow rate of the electromagnetic pump 13 further increases and the pressure of 1120 yen rises to the third set price P31, the response body 32 is displaced and the proportional valve 50 starts to open, and the hysteresis 9 When the valve 25 opens, the electromagnetic pump 13
Discharged from n Daisaku Kanyu passes through 1824 χ storage 1lIW
In this state, the pressure in the pressure chamber 17.20 is determined by the discharge flow rate of the electromagnetic pump 13 and the opening area of the orifice 26. When is the hole opened after six C: Ha,
Pressure 1i117s? The pressure of "i" and "i" changes in proportion to the discharge flow rate of the electromagnetic pump 13, and the pressure of "i" changes in proportion to the discharge flow rate of the electromagnetic pump 13.
C: By changing the song or waveform, the opening degree of the proportional valve 50 can be controlled arbitrarily.

一刀、圧力１１１７．２０門の圧力が低１Ｔる虐機では
、ヒステリシス弁２５は第３の設定（ＩＮ　Ｐ　３より
も低い乗２の設定債Ｐ２（二連する１で閉と彦ら力いの
で、この第２の設定債Ｐ２を第ｌの設定憧Ｐ１じ近い個
（−股定しＣシ〈こと（二より、開閉弁４５が開くと同
＃＠（：、多るいは（１より％前に比例弁５０が開くと
いう危険を伴わずに、比例弁５０の比例動作（二遍用で
きる圧力範ｉｔ−広くとることが可能である０ なシ上記の実施例では、比例弁５０を卑−の弁としχ示
し六が、ロッド５１が移動する過程で、１すバーナの緩
瘍火じ逼し＊流量で燃料カスを供給Ｔる六めの第１９ｆ
を開−１ついで熱ｇＩ！求の大きさに応じ六流暑でｆｆ
ｉ料カスを供ｉ１１する六め（二Ｔｈ２升を開くよう（
＝構成し大２段弁を使用することもでＩＩる。この場合
−二は、開閉弁４５と第１升とを同一≦：開くこと（二
よつ１、タルクト潜火力式の燃焼器に有利≦二遍用で龜
る０ り上のよう楓：この発明≦：よ１は、電磁ポンプの吐出
側から貯留筒に作動流体をｌ１ｃＴ系路円にヒステリシ
ス弁を挿入し、電磁ポンプの吐出側圧力が所定の設定儲
に達する１では作動流体力１貯＠室Ｃ：戻るのを阻止Ｔ
るようにし六ので、開閉弁および比例弁のシークンス動
作（二支障を与えることなく、比例弁の比例範囲を広く
することカーできるととも（＝、開閉弁の開動作が迅速
Ｃ：杓わするという効果が得らする０In a machine with a low pressure of 1T, the hysteresis valve 25 is set to the third setting (IN P2, which is a lower power of 2 than IN Therefore, if this second setting bond P2 is set to a number (-) that is close to the first setting bond P1, then when the opening/closing valve 45 opens, In the embodiment described above, the proportional operation of the proportional valve 50 (which can be applied over a wide range of pressures) without the risk of the proportional valve 50 opening before the The sixth valve 19f, which is the base valve, supplies fuel scum at a flow rate of one burner during the movement of the rod 51.
Open - 1 then heat gI! Depending on the size of the request, it will be ff in the sixth heat
The 6th step to offer i11 dregs (to open 2 Th2 squares (
= It is also possible to use a large two-stage valve. In this case -2, the opening/closing valve 45 and the first square are the same ≦: open (2. Invention ≦: In 1, a hysteresis valve is inserted into the l1cT system circuit to supply the working fluid from the discharge side of the electromagnetic pump to the storage cylinder, and when the discharge side pressure of the electromagnetic pump reaches a predetermined setting pressure, the working fluid force 1 is stored. @ Room C: Prevent returning T
Therefore, it is possible to widen the proportional range of the proportional valve without causing any hindrance to the sequential operation of the on-off valve and the proportional valve. The effect is 0

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの発明の一５ｊ！施例（＝よる電ａ−／−ク
ンス弁の縦断面図、第２図は七の油圧系統図、第３図は
ＩＮ１図の電磁シーケンス弁（：般けらｆ′ｌ六ヒステ
リシス弁の縦動面図でめるＯFigure 1 shows one example of this invention! Example (= Longitudinal sectional view of the electric a-/-Kunsu valve, Fig. 2 is the hydraulic system diagram of Fig. 7, Fig. 3 is the electromagnetic sequence valve of Fig. Draw a surface diagram O

Claims (1)

【特許請求の範囲】[Claims] 貯奮箇内の作動流体ｔｆｌＪ１＊よびｓ２の圧力筒Ｃ：
圧送し、ついでオリフづスをＩＩする通路を経て上記貯
雷１ｍ（＝戻る系路で循ｓｓせるように動作する電磁ポ
ンプと、上記ｇａｌの圧力１門の圧力が第ＪＯＩ！電替
１で上昇し大と１　（：　１／ａ　１の応動体の変位Ｃ
二よつ１開かする開閉弁と、上記第２の圧力筒内の圧力
が上記ＩｆＯＩＩ定曽よりも高い１１３の般定曽オで上
昇し六と＠　（：　ｊｌ　２の応動体Ｏ変位Ｃ：よって
―かする比例弁と、上記通路に毅けら１、上記１１訃よ
び８２０氏力圧力筒内力が上記１ｆｉｘの　　゛Ｗ＆定
饅よりｔ高い１１１３０ｍＡ定Ｃ：遍し大と−Ｃ：開き
このｊＩ３０設定−より１低くなり大と＠（二閉じるヒ
ステリシス弁とを備え大電婁ジータンス弁。Pressure cylinder C of working fluid tflJ1* and s2 in the storage part:
The electromagnetic pump that operates to circulate the lightning through the orifice II passage (= return line) and the pressure of the gal pressure gate 1 are at the JOI! electric switch 1. Displacement C of the responding body of 1/a 1 (: 1/a 1)
When the on-off valve is opened, the pressure in the second pressure cylinder rises at the general constant value of 113, which is higher than the IfOII constant value, and the reaction body O displacement C of 2 and (: jl 2) Therefore, the proportional valve is connected to the above passage, and the pressure inside the cylinder is 11130 mA, which is higher than the above 1 fix. Settings - 1 lower and 2 closed hysteresis valves and 2 closed hysteresis valves.