JP2544182B2 - Lift valve device - Google Patents
Lift valve deviceInfo
- Publication number
- JP2544182B2 JP2544182B2 JP63186643A JP18664388A JP2544182B2 JP 2544182 B2 JP2544182 B2 JP 2544182B2 JP 63186643 A JP63186643 A JP 63186643A JP 18664388 A JP18664388 A JP 18664388A JP 2544182 B2 JP2544182 B2 JP 2544182B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- slide
- shutoff
- opening
- slide 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.)
- Expired - Fee Related
Links
- 238000005192 partition Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000006378 damage Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Description
【発明の詳細な説明】 イ.発明の目的 「産業上の利用分野」 本発明は、流体輸送管路に介装する自動絞り調節用流
路を備えたリフト弁装置に係り、計画的な送水・配水に
至便な可変定流量調節弁装置としての作用効果と共に、
大型化を実施しても開閉弁部の操作回動力が小さくて済
み、しかも、開閉弁部の弁開口部付近に些かも強度な偏
流、乱流等発生させることなく、従って、振動現象、衝
撃現象(キャビテーション現象も含む)からも開放され
たリフト弁装置を得ようとするものである。DETAILED DESCRIPTION OF THE INVENTION OBJECT OF THE INVENTION "Industrial field of application" The present invention relates to a lift valve device provided with a flow path for automatic throttle adjustment interposed in a fluid transportation pipeline, and a variable constant flow rate adjustment convenient for planned water supply / distribution. With the effects of the valve device,
Even if the valve is increased in size, the operating power of the on-off valve is small, and there is no significant uneven flow or turbulence near the valve opening of the on-off valve. The purpose is to obtain a lift valve device that is also free from phenomena (including cavitation phenomenon).
なお、本明細書中の「水」の語は、流体を総称する。 In addition, the term "water" in this specification is a general term for a fluid.
「従来の技術」 一般的に、弁装置を単なる開閉弁の用途に供する時に
は、例えば、バタフライ弁、ゲート弁などのように開閉
作動に無理のない構造のもので充分と思えるが、該弁開
口の形状は一般的には不整形なものとなり、弁開口を通
過する流れは、偏流や乱流となり易く、従って、振動現
象や衝撃現象を誘発して、弁要部の急激な侵食や破壊又
は甚だしい騒音や振動を伴うこととなり、その対策に苦
慮すると言う問題点があった。"Prior Art" Generally, when a valve device is used as a mere opening / closing valve, a structure such as a butterfly valve or a gate valve that does not cause an opening / closing operation seems to be sufficient. The shape of is generally irregular, and the flow passing through the valve opening tends to be uneven flow or turbulent flow.Therefore, a vibration phenomenon or a shock phenomenon is induced, causing rapid erosion or destruction of the valve main portion or There was a problem that it was accompanied by tremendous noise and vibration, and it was difficult to deal with it.
それに引換え、リフト弁類においては、流量調整の用
途に対して、理想的な形状で適応できる構造を持ってい
る反面、配慮を欠くと受圧力の偏差によって、使用に耐
えないものとなる。In exchange, the lift valves have a structure that can be adapted in an ideal shape for the purpose of adjusting the flow rate, but if care is not taken, they will be unusable due to deviations in the pressure reception.
従って、従来この種の弁類には、複座リフト弁にして
軸推力を釣合わせたり、単座リフト弁では、弁軸と一体
的にしたバランス・ピストン部を設けて、軸推力を軽減
するなど、種々の方法を採用しながら適用されてきた。Therefore, conventionally, this type of valve is a double-seat lift valve to balance the axial thrust, and a single-seat lift valve is provided with a balance piston part integrated with the valve shaft to reduce the axial thrust. , Has been applied while adopting various methods.
「発明が解決しようとする課題」 しかしながら、従来のリフト弁装置には勿論なお幾多
の問題点が残っている。先ず前述の通り、高圧用のもの
や大口径のものでは、その軸推力軽減手段がかなり構造
的に不利を招き、製作費が不要に嵩む難点がある。しか
も、圧力変動の激しい管路内における流量の制御に当た
っては、その対応は容易ではない。[Problems to be Solved by the Invention] However, many problems still remain in the conventional lift valve device. First, as described above, in the high-pressure type and large-diameter type, the axial thrust reducing means has a disadvantage in that the manufacturing cost is unnecessarily increased because of a considerable structural disadvantage. Moreover, it is not easy to control the flow rate in the pipeline where the pressure fluctuates drastically.
本発明においては、緩流室cの効果により、締切弁部
(開閉弁部)付近の被害を皆無にすると共に、常時の回
動力は極めて小さくて済み、しかも構造的に流量制御性
能の安定した至便な大型リフト弁装置をも得ることを目
的とする。In the present invention, due to the effect of the slow flow chamber c, damage to the vicinity of the shutoff valve portion (opening / closing valve portion) is eliminated, the turning power at all times is extremely small, and the flow rate control performance is structurally stable. The purpose is to obtain a convenient large lift valve device.
ロ.発明の構成 「課題を解決するための手段」 本発明の課題解決手段については、既に前述において
その要点を説明したが、さらに本発明を一実施例の図面
に基づいて説明する。B. Configuration of the Invention "Means for Solving the Problems" The main points of the means for solving the problems of the present invention have been described above, but the present invention will be further described based on the drawings of one embodiment.
第1図において、人口流路a、出口流路f、を有する
弁箱1と、滑り弁側弁箱蓋2とからなる弁箱内には、締
切弁弁座3とそれに対応する締切弁7との間に、締切弁
弁開口bが形成され、滑り弁弁座4とそれに対応する滑
り弁の筒状部材11との間には、滑り弁弁開口dが形成さ
れている。そして、弁開口bと弁開口dとに挟まれるよ
うに緩流室cが構成されている。In FIG. 1, a shut-off valve seat 3 and a shut-off valve 7 corresponding to the shut-off valve seat 3 are provided in a valve box including a valve box 1 having an artificial flow path a and an outlet flow path f, and a slide valve side valve box lid 2. Is formed between the slide valve valve seat 4 and the corresponding slide valve tubular member 11 and a slide valve valve opening d is formed between the slide valve valve seat 4 and the corresponding tubular member 11 of the slide valve. The slow flow chamber c is configured so as to be sandwiched between the valve opening b and the valve opening d.
また、シール部材14を介して、滑り弁10と滑り弁側弁
箱蓋2との間に形成された袋室gが、連通路17によっ
て、人口流路aに連通されると共に、釣り合いばね13が
介装されることによって、滑り弁弁開口dに自動絞り調
節流路が構成されている。締切弁7と滑り弁10との受圧
面積は、ほぼ等しくされており、締切り時、乃至、締切
り寸前には両弁体部が当接一体化して、軸推力が均衡す
ると同時に、締切弁操作用ハンドル15の回動力からは基
本的にフリーとなる構造に構成されている。Further, the bag chamber g formed between the slide valve 10 and the slide valve side valve box lid 2 via the seal member 14 is communicated with the artificial flow path a by the communication passage 17, and the balance spring 13 is also provided. Is installed, an automatic throttle control flow path is formed at the slide valve opening d. The pressure receiving areas of the shutoff valve 7 and the slide valve 10 are made substantially equal, and at the time of the shutoff or just before the shutoff, both valve body parts are brought into contact with and integrated with each other to balance the axial thrust and at the same time for the shutoff valve operation. The structure is basically free from the turning force of the handle 15.
なお、第1図は、弁箱下部に締切弁開閉ねじ部材16を
設けて、弁装置の施設現場における分解点検を容易にし
た製品の実施例を示したものである。It should be noted that FIG. 1 shows an embodiment of a product in which a shutoff valve opening / closing screw member 16 is provided in the lower portion of the valve box to facilitate disassembly and inspection of the valve device at a facility site.
第3図における実施例は、上流側の締切弁を締めて行
う分解点検の便利さには欠けるが、一般的な弁類に好ん
で採用される外ねじ式構造のものを示した。この場合
は、第1図における実施例のようにハンドルにより弁軸
を回しながら上下させて締切弁を開閉するのではなく、
ハンドル55を回すことによって、弁軸46と共に締切弁47
が上下に移動することによって開閉作動を行う構造であ
る。これも第1図と同様に、締切り時には、締切弁47と
滑り弁50とが中間環座金49を介して当接して、弁軸46と
共に一体化して、軸推力のバランスによるハンドル操作
の軽快さが一目瞭然である。Although the embodiment shown in FIG. 3 lacks the convenience of overhauling by closing the shutoff valve on the upstream side, it has an external screw type structure which is preferably adopted for general valves. In this case, as in the embodiment shown in FIG. 1, the valve shaft is rotated up and down by the handle to open and close the shutoff valve, and
By turning the handle 55, the shut-off valve 47 together with the valve shaft 46
Is a structure for opening and closing by moving up and down. Similar to FIG. 1, at the time of shutoff, the shutoff valve 47 and the slide valve 50 contact each other through the intermediate ring washer 49 and are integrated with the valve shaft 46, so that the steering force is balanced by the balance of the axial thrust. Is obvious.
「作 用」 第1図にてその作用を観察すると、今、締切弁7は全
開の状態になっており、従って、流れは所定最大流量を
維持しながら、人口流路a→締切弁弁開口b→緩流室c
→滑り弁弁開口d→出口集合流路e→出口流路fの順に
流れている。[Operation] When the action is observed in FIG. 1, the shutoff valve 7 is now in the fully opened state, and therefore, the flow is maintained at a predetermined maximum flow rate, and the artificial flow path a → the shutoff valve opening. b → gentle flow chamber c
→ Sliding valve valve opening d → outlet flow passage e → outlet flow passage f in this order.
この状態において、釣り合いばね13の滑り弁弁開口d
を開く方向への力は、滑り弁10の前後の受圧面に働く袋
室g即ち人口流路aの圧力と緩流室cの圧力との差に均
衡させてあり、それはもとより締切弁弁開口bにおける
流路抵抗に起因する。In this state, the slide valve valve opening d of the balance spring 13
The force in the opening direction is balanced with the pressure difference between the bag chamber g, that is, the artificial flow channel a, and the pressure in the slow flow chamber c, which act on the pressure-receiving surfaces before and after the slide valve 10. This is due to the flow path resistance at b.
次に、流量制御のため、締切弁7を弁座3に近づける
と、当然に締切弁弁開口bの抵抗が増加するに従って緩
流室cの圧力が低下し、釣り合いばね13による均衡が破
れて、滑り弁の筒状部材11の端縁部11mが滑り弁弁座4
の弁座面4mに近づき、締切弁の開度に見合う自動絞り調
節流路となって安定する(即ち、定流量機能を現わ
す)。これらの状態にある時、締切弁7の下流側向き即
ち、図面において上向きに作用する偏圧力は、締切弁弁
開口bにおける僅かな流路抵抗分であるから、実用上何
ら差し支えがない。Next, when the shutoff valve 7 is brought closer to the valve seat 3 for flow rate control, the pressure in the slow flow chamber c decreases as the resistance of the shutoff valve opening b naturally increases, and the balance by the balance spring 13 is broken. The end portion 11m of the tubular member 11 of the slide valve is the slide valve seat 4
4m of the valve seat surface of, and becomes an automatic throttle control flow path corresponding to the opening degree of the shutoff valve and becomes stable (that is, it exhibits a constant flow rate function). In these states, the bias pressure acting downstream of the shutoff valve 7, that is, upward in the drawing, is a slight flow resistance at the shutoff valve opening b, so there is no practical problem.
更に、締切弁7が締切り寸前に至った場合、第1図に
明らかなように、滑り弁の筒状部材11の端縁部11mと、
滑り弁弁座4の弁座面4mとの間に間隙を残したままで、
締切弁ボス部8と滑り弁ボス部12とが、中間環座金9を
介して優先的に当接一体化して、弁軸鍔部6pを抱き締め
ること無く囲む形状となって、本発明に係る軸推力の均
衡手段を成し、且つ締切弁操作用ハンドル15の回動力か
らは基本的にフリーとなるものであり、これらの作用に
よって、全行程を通してハンドル操作は空回り風に軽快
である。Furthermore, when the shut-off valve 7 is on the verge of shut-off, as is apparent from FIG. 1, the end edge portion 11m of the tubular member 11 of the slide valve,
While leaving a gap between the sliding valve seat 4 and the valve seat surface 4m,
The shutoff valve boss portion 8 and the sliding valve boss portion 12 are preferentially abutted and integrated via the intermediate ring washer 9 to form a shape that surrounds the valve shaft collar portion 6p without hugging, and the shaft according to the present invention It forms a thrust balancing means and is basically free from the turning power of the shut-off valve operating handle 15. Due to these actions, the steering operation is light to the idling wind throughout the entire stroke.
従って、本発明に係るリフト弁装置の優れた定流量特
性と相俟って、弁操作のための動力の軽少化や主要ねじ
部の耐久性など、各産業分野において優れた効果を奏す
る。Therefore, in combination with the excellent constant flow rate characteristic of the lift valve device according to the present invention, it has excellent effects in each industrial field such as reduction of power for valve operation and durability of main screw portions.
「実施例」 本発明の実施例について、図面を参照しながら具体的
に説明する。[Examples] Examples of the present invention will be specifically described with reference to the drawings.
第1図には、1次側即ち上流側の水を締切弁7により
締め切って、弁装置の主要部を分解点検するのに容易な
ように、締切弁開閉ねじ部材16を弁箱底部に設けたもの
を示した。従って、ハンドル15と共に弁軸6が回る構造
であるが、本弁装置が締切り行程に入り、受圧部の両弁
体がそのボス部8及び12において、中間環座金9を介し
て当接一体化した時点に、軸方向の推力が均衡すると同
時に、該弁体部は、弁軸6の回動力からはフリーになる
ように構成されている。In FIG. 1, a shut-off valve opening / closing screw member 16 is provided at the bottom of the valve box so that water on the primary side, that is, the upstream side is shut off by a shut-off valve 7 so that the main part of the valve device can be easily disassembled and inspected. I showed you Therefore, although the valve shaft 6 rotates together with the handle 15, the present valve device enters the shut-off stroke, and both valve bodies of the pressure receiving portion abut and integrate at the boss portions 8 and 12 via the intermediate ring washer 9. At that time, the thrust in the axial direction is balanced, and at the same time, the valve body portion is configured to be free from the turning force of the valve shaft 6.
第2図には、締切弁開閉ねじ部材36をハンドル35の手
元に設け、滑り弁部を簡単にしたものを示した。弁作動
は、第1図のものとほぼ同様である。In FIG. 2, a shutoff valve opening / closing screw member 36 is provided near the handle 35 to simplify the sliding valve portion. The valve actuation is similar to that of FIG.
第3図のものは、弁箱や各弁体部の構造が第1図のも
のとほぼ同様であるが、外ねじ方式が適用され、締切弁
開閉ねじ部材55sがハンドル55にあるため、キー構造56k
による作用と相俟って、弁軸46は回らず上下するのみで
ある。従って、締切弁ボス部48と滑り弁ボス部52とが、
中間環座金49及び弁軸鍔部46pを介して当接し、弁軸46
込め一体化しても、軸方向の推力は上下に均衡している
ので、ハンドル55の回動力からはフリーであり、第1図
のものと同様に軽快なハンドル操作が叶えられる。The structure of the valve box and each valve body of Fig. 3 is almost the same as that of Fig. 1, but the external screw method is applied and the shutoff valve opening / closing screw member 55s is on the handle 55, so the key Structure 56k
Combined with the action of, the valve shaft 46 does not rotate but only moves up and down. Therefore, the shutoff valve boss portion 48 and the slide valve boss portion 52 are
The intermediate ring washer 49 and the valve shaft collar portion 46p contact each other, and the valve shaft 46
Even if they are integrated with each other, the thrust in the axial direction is balanced in the vertical direction, so that the turning force of the handle 55 is free, and the same light steering operation as in FIG. 1 can be realized.
なお図面中、中間環座金49を残してあるが、これを省
いて弁軸鍔部46pに兼用させ得ることは勿論である。ま
た、45wは、シール部材54にダイヤフラム板を適用した
場合、該部材が高圧力などによる隔壁部材45への圧着を
防ぐための支持板の一例を示したものである。また、滑
り弁弁座44に鋸歯状流路部44tを図示してあるが、特に
大型の弁装置類によく利用されるキャビテーション軽減
用等の流路改善手段の適用例を示したものである。Although the intermediate ring washer 49 is left in the drawing, it is needless to say that the intermediate ring washer 49 can be omitted and used as the valve shaft flange portion 46p. Further, 45w shows an example of a support plate for preventing the diaphragm member from being pressure-bonded to the partition member 45 due to high pressure when a diaphragm plate is applied to the seal member 54. Further, although the serrated flow path portion 44t is shown in the slide valve valve seat 44, it shows an application example of flow path improving means for reducing cavitation, which is often used especially for large valve devices. .
そして又、本発明に係るリフト弁装置には、自動絞り
調節流路となる滑り弁弁開口dにおいて、目詰まりを起
こした時点には、滑り弁が開いて自動的に掃除作用を行
うと言う特筆に値する優れた利点がある。Further, in the lift valve device according to the present invention, it is said that the sliding valve opens and automatically performs the cleaning action at the time when the clogging occurs in the sliding valve opening d that serves as the automatic throttle control passage. There are outstanding advantages that deserve special mention.
ハ.発明の効果 本発明におけるリフト弁装置は、前述の通り、リフト
弁装置の利点を生かすと共に、大型化に伴う従来の各種
弁装置の欠点を一気に改善し、その定流量特性と共に回
動力の軽少化により、例えば、動力源の取れない遠隔辺
境の地の場合等に、容易に弱電力なソーラー・システム
をさえ採用でき、更に、振動や衝撃も発生せず、目詰ま
りも起こさない等、各種の卓効を現し、用水管理上に大
きな成果を挙げるものである。C. As described above, the lift valve device according to the present invention makes use of the advantages of the lift valve device and at the same time alleviates the drawbacks of the various valve devices of the related art due to the increase in size. For example, even in the case of remote frontiers where the power source cannot be taken, it is possible to easily employ a solar system with low power consumption, further, there is no vibration or shock, no clogging, etc. It shows the excellent effect of the above and shows great results in water management.
図面は、第1図、第2図、第3図とも夫々に、本発明に
おける一実施例の縦断面図を示すものである。各図面に
おいて、 1;21;41……弁箱、2;22;42……滑り弁側弁箱蓋、 3;23;43……締切弁弁座、4;24;44……滑り弁弁座、 4m;24m;44m……弁座面、44t……鋸歯状流路部、 5;25;45……隔壁部材、45w……ダイヤフラム支持板、 6;26;46……弁軸、6s;26s;46s……弁軸ねじ部、 6p;26p;46p……弁軸鍔部、7;27;47……締切弁、 8;28;48……締切弁ボス部、9;29;49……中間環座金、 9i;29i;49i……端面、10;30;50……滑り弁、 11;31;51……筒状部材、11m;31m;51m……筒状部材端縁
部、 12;32;52……滑り弁ボス部、12i;32i;52i……ボス部端
面、 13;33;53……釣り合いばね、14;34;54……シール部材、 15;35;55……ハンドル、55s……締切弁開閉ねじ部材、 16;36……締切弁開閉ねじ部材、56……溝付ブッシュ、 56k……キー溝部、17;37;57……連通路。 a……入口流路、b……締切弁弁開口、c……緩流室、
d……滑り弁弁開口、e……出口集合流路、f……出口
流路、g……袋室。The drawings are longitudinal sectional views of one embodiment of the present invention, in each of FIG. 1, FIG. 2, and FIG. In each drawing, 1; 21; 41 …… Valve box, 2; 22; 42 …… Sliding valve side valve box lid, 3; 23; 43 …… Cutoff valve seat, 4; 24; 44 …… Sliding valve valve Seat, 4m; 24m; 44m …… Valve seat surface, 44t …… Sawtooth channel section, 5; 25; 45 …… Separator member, 45w …… Diaphragm support plate, 6; 26; 46 …… Valve shaft, 6s ; 26s; 46s …… Valve shaft screw part, 6p; 26p; 46p …… Valve shaft collar part, 7; 27; 47 …… Shutoff valve, 8; 28; 48 …… Shutoff valve boss part, 9; 29; 49 ...... Intermediate ring washer, 9i; 29i; 49i …… End face, 10; 30; 50 …… Slide valve, 11; 31; 51 …… Cylindrical member, 11m; 31m; 51m …… Cylindrical member edge, 12; 32; 52 …… Slip valve boss, 12i; 32i; 52i …… End of boss, 13; 33; 53 …… Balance spring, 14; 34; 54 …… Seal member, 15; 35; 55 …… Handle, 55s ...... Shutoff valve opening / closing screw member, 16; 36 ...... Shutoff valve opening / closing screw member, 56 ...... Grooved bush, 56k ...... Key groove part, 17; 37; 57 ...... Communication passage. a: inlet flow path, b: shutoff valve valve opening, c: slow flow chamber,
d ... Sliding valve valve opening, e ... Exit collecting flow path, f ... Exit flow path, g ... Bag chamber.
───────────────────────────────────────────────────── フロントページの続き 合議体 審判長 木村 良雄 審判官 林 晴男 審判官 山岸 利治 (56)参考文献 実開 昭63−45470(JP,U) 実公 昭58−22453(JP,Y1) ─────────────────────────────────────────────────── ─── Continuation of front page Jury Chairman Yoshio Kimura Judge Judge Haruo Hayashi Judge Toshiharu Yamagishi (56) References
Claims (1)
に対峙して、滑り弁(10;30;50)が設けられ、滑り弁の
筒状部材(11;31;51)はシール部材(14;34;54)を介し
て、弁箱の隔壁部材(5;25;45)に密封的且つ滑動自在
に嵌装され、該筒状部材(11;31;51)とこれに対応する
滑り弁弁座(4;24;44)との間に滑り弁弁開口(d)が
形成され、滑り弁(10;30;50)と滑り弁弁座(4;24;4
4)或いは締切弁(7;27;47)との間に、該弁開口(d)
を常に開く方向に作用する釣り合いばね(13;33;53)が
介装されると共に、滑り弁(10;30;50)と滑り弁側弁箱
蓋(2;22;42)との間に包容形成された袋室(g)が連
通路(17;37;57)によって人口流路(a)に連通され
て、該弁開口(d)に自動絞り調節流路が構成されたリ
フト弁装置において、締切弁(7;27;47)の受圧面積と
滑り弁(10;30;50)の受圧面積とがほぼ等しくなるよう
形成され、締切弁(7;27;47)を締切り寸前にまで操作
して、締切弁弁座(3;23;43)に近づけた時、締切弁ボ
ス部(8;28;48)と滑り弁ボス部(12;32;52)とが直接
的に或いは中間環座金(9;29;49)を介して優先的に当
接一体化して、弁軸(6;26;46)に軸推力を負荷するこ
となく、且つ締切弁操作用ハンドル(15;35;55)の回動
力からフリーとなる構造に構成されたことを特徴とする
リフト弁装置。1. A shutoff valve (7; 27; 47) in a valve box (1; 21; 41).
A slide valve (10; 30; 50) is provided opposite to, and a tubular member (11; 31; 51) of the slide valve is inserted through a seal member (14; 34; 54) to a partition member of the valve box. (5; 25; 45) is slidably and slidably fitted on the tubular member (11; 31; 51) and the sliding valve seat (4; 24; 44) corresponding thereto. A valve valve opening (d) is formed, the slide valve (10; 30; 50) and the slide valve seat (4; 24; 4).
4) Or between the shutoff valve (7; 27; 47), the valve opening (d)
A balance spring (13; 33; 53) that acts in the direction that always opens the valve is installed, and between the slide valve (10; 30; 50) and the slide valve side valve box cover (2; 22; 42). A lift valve device in which the enclosed bag chamber (g) is communicated with the artificial flow path (a) by a communication path (17; 37; 57), and an automatic throttle control flow path is formed in the valve opening (d). In, the pressure receiving area of the cutoff valve (7; 27; 47) and the pressure receiving area of the slide valve (10; 30; 50) are formed to be almost equal, and the cutoff valve (7; 27; 47) is just before the cutoff. When operated to approach the shutoff valve seat (3; 23; 43), the shutoff valve boss (8; 28; 48) and the slide valve boss (12; 32; 52) directly or in the middle The valve washer (9; 29; 49) is preferentially abutted and integrated via a ring washer (9; 29; 49) so as not to apply axial thrust to the valve shaft (6; 26; 46) and to operate the shutoff valve (15; 35; 55) Lift valve characterized by being configured to be free from the turning power apparatus.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63186643A JP2544182B2 (en) | 1988-07-26 | 1988-07-26 | Lift valve device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63186643A JP2544182B2 (en) | 1988-07-26 | 1988-07-26 | Lift valve device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0238783A JPH0238783A (en) | 1990-02-08 |
JP2544182B2 true JP2544182B2 (en) | 1996-10-16 |
Family
ID=16192179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63186643A Expired - Fee Related JP2544182B2 (en) | 1988-07-26 | 1988-07-26 | Lift valve device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2544182B2 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5181425U (en) * | 1974-12-23 | 1976-06-29 | ||
JPS5822453U (en) * | 1981-08-06 | 1983-02-12 | 株式会社クボタ | Intake system for vehicle-mounted engine |
JPS6345470U (en) * | 1986-09-12 | 1988-03-26 |
-
1988
- 1988-07-26 JP JP63186643A patent/JP2544182B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0238783A (en) | 1990-02-08 |
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