JPS60196476A - Poppet type flow control valve - Google Patents
Poppet type flow control valveInfo
- Publication number
- JPS60196476A JPS60196476A JP4918784A JP4918784A JPS60196476A JP S60196476 A JPS60196476 A JP S60196476A JP 4918784 A JP4918784 A JP 4918784A JP 4918784 A JP4918784 A JP 4918784A JP S60196476 A JPS60196476 A JP S60196476A
- Authority
- JP
- Japan
- Prior art keywords
- poppet valve
- back pressure
- pressure chamber
- boat
- oil
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/006—Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
- F15B2211/30575—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve in a Wheatstone Bridge arrangement (also half bridges)
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Servomotors (AREA)
- Fluid-Pressure Circuits (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はボベソ）ｆｋバネカとソレノイドとによって流
量全制御するポペット式流相制御弁に関するものである
。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a poppet type flow phase control valve that completely controls the flow rate using a Boveso (FK) spring and a solenoid.
従来技術
第１図に示すように、弁本体１の穴２に中間スリーブ３
を嵌挿し、このスリーブ３内に入口ポート４と出口ボー
ト５と全１析］由するポペット弁６を嵌挿すると共に、
ポペット弁６をバネ７で遮断方向に付勢して円錐形のシ
ーｌ一部（コーンシート）６αをスリーブ３の弁座３ａ
に密治し１升本体１に取着したソレノイド８の可動子９
をブツシュビン１０を介してポペット−１Ｐ６に当接し
たポペット式流叶＋ｌ＋ｌｌ １ｆｉ１升が知られてい
る。Prior Art As shown in FIG. 1, an intermediate sleeve 3 is inserted into a hole 2 of a valve body 1.
and a poppet valve 6 connected to the inlet port 4 and the outlet boat 5 is inserted into the sleeve 3,
The poppet valve 6 is urged in the blocking direction by the spring 7, and a part of the conical seal (cone seat) 6α is attached to the valve seat 3a of the sleeve 3.
The mover 9 of the solenoid 8 which was carefully cured and attached to the 1-sho body 1
A poppet-type flow leaf +l+ll 1fi1 square in which abutting on a poppet-1P6 via a bushbin 10 is known.
この流量制御弁であればソレノイド８を連続して商運で
ＯＮ、ＯＦＦ ′ｆｒ：繰り返しすれば、ソレノイド８
の推力によってポペット弁６をバネ７に抗して押動して
入口ボート４と川口ボート５とを断続的に開、閉するの
で出口ボート５の流量を制御できる。If this flow rate control valve is used, solenoid 8 can be turned ON and OFF continuously by repeating.
The thrust force pushes the poppet valve 6 against the spring 7 to intermittently open and close the inlet boat 4 and the river mouth boat 5, so that the flow rate of the outlet boat 5 can be controlled.
すなわち、第２図に示すように出口ボート５の流量をソ
レノイド８のＯＮ、ＯＦＦ の切替え時間比によってｆ
ｔ＋ＩＪ得ｊされることになる。In other words, as shown in FIG.
t+IJ will be obtained.
第２図において、αは山形形状の搬送波であり、この増
速１２＆ａに対してｂに示す直線の指令信号を出力する
と、ソレノイド８の駆動電圧は斜線で囲まれた範囲ＣＨ
ｒ Ｃ２＋Ｃｓで示すようになり、ポペット弁６を斜線
で囲まれた範囲ｄ１゜ｄ２＋ｄ３で開とするから、川口
ボート５の流＠Ｑ（出口流１１゛］はｅに示すようにな
る。In FIG. 2, α is a chevron-shaped carrier wave, and when a linear command signal shown in b is output for this speed increase 12&a, the driving voltage of the solenoid 8 is within the range CH surrounded by diagonal lines.
Since the poppet valve 6 is opened in the hatched range d1°d2+d3, the flow @Q (outlet flow 11°) of the river mouth boat 5 becomes as shown in e.
しかしながら、ソレノイドεの推力は５〜１０に９ｆＷ
−７１にであるから、ポペット弁６を押す力も５〜１０
９ｆと小さくなり、ポペット弁６に作用する油圧の刀（
フローフォース）によってポペット−ｔｆ６が閉じる方
向のｉｆｆ力金受けるとソレノイド８によってポペット
弁６を開くことができなくなるので、第３図に示すよう
にポペット弁６に小径部６ａｋ形成して閉じ方向と開き
方向に同−面積の受圧部ｂ′、Ｉｔ形成してポペット弁
６に作用する油圧の力をバランスさせている。However, the thrust of solenoid ε is 9 fW in 5 to 10
-71, so the force pushing the poppet valve 6 is also 5 to 10.
The hydraulic blade that is small at 9f and acts on the poppet valve 6 (
If the poppet-tf6 receives an if force in the closing direction due to flow force), the solenoid 8 will not be able to open the poppet valve 6, so as shown in FIG. Pressure receiving portions b' and It of the same area are formed in the opening direction to balance the hydraulic force acting on the poppet valve 6.
このために、中間スリーブ３とポペット弁６との隙間よ
り油漏れが生ずるので、油漏れを完全に防止できない。For this reason, oil leakage occurs from the gap between the intermediate sleeve 3 and the poppet valve 6, so oil leakage cannot be completely prevented.
％に高圧油が流通する場合には油漏れが犬とがってし捷
う。If high-pressure oil is distributed in the area, oil leaks will become sharp.
また、流１が非常に多くなるとフローフォースが著しく
増大してポペット弁６を閉じる刀が大きくなり過ぎてソ
レノイド８の力ではポペット９Ｐ６を開くことが出来な
くなり、雌伺・制値１−Ｃきなくなることがある。In addition, when the flow 1 becomes extremely large, the flow force increases significantly, and the force that closes the poppet valve 6 becomes too large, making it impossible to open the poppet 9P6 with the force of the solenoid 8, and the female opening and limit value 1-C. It may disappear.
また、入口ボート４より出口ポート５に流通する流量は
パルス状となるので、脈動、騒音が発生してしまう。Further, since the flow rate flowing from the inlet boat 4 to the outlet port 5 is pulsed, pulsation and noise occur.
また、大流量′（１７制御する場合にはポペット弁６の
径を犬きくして流通面積を大きくすれば良いが、その様
にするとソレノイド８への通電電流を犬きくして推力を
大きくする必要があり、ソレノイド８が大型となったり
、消費電力の増加、応答周波数の低下等の不具合を有す
ると共に、ソレノイド８の推力は前述のようにあまり大
きくできないので犬滝用（例えば＋０００ｔ／分］を制
御できない。In addition, when controlling a large flow rate' (17), it is possible to increase the diameter of the poppet valve 6 to increase the flow area, but in this case, it is necessary to increase the current applied to the solenoid 8 to increase the thrust. However, the solenoid 8 has problems such as being large, increasing power consumption, and decreasing the response frequency, and as mentioned above, the thrust of the solenoid 8 cannot be increased very much, so it is not possible to control the Inutaki version (for example, +000 t/min). Can not.
発明の目的
油漏れを確実に防ＩＦ−できると共に、大流量を制御で
きるようにすることを目的とする。OBJECTS OF THE INVENTION It is an object of the invention to reliably prevent oil leakage and to control large flow rates.
発明の構成
入口ボートと出口ボートとを第１主ポペツト弁で開閉し
、その第を主ポペット弁の背圧室と入口ボートとを常時
連通させると共に、背圧室と出口ボートとを第１主ポペ
ツト弁より小径の第２主ポペツト弁で開開し、その背圧
室と出口ボートと全ソレノイドで作動される補助ポペッ
ト弁で開閉するようにしたもの。Structure of the Invention The inlet boat and the outlet boat are opened and closed by the first main poppet valve, and the back pressure chamber of the main poppet valve and the inlet boat are always communicated with each other, and the back pressure chamber and the outlet boat are connected by the first main poppet valve. It is opened and opened by a second main poppet valve with a smaller diameter than the poppet valve, and is opened and closed by an auxiliary poppet valve operated by its back pressure chamber, outlet boat, and all solenoids.
実が１例
第４図はポペット大流量制御弁の断面図であり、弁本体
１０には穴１１が形成され、この穴１１にはスリーブ１
２が低層され、かつ押板１３とナツト１４とで固定しで
あると共に、スリーブ１２内には大径の第１主ボペツ１
９ｆ’＋５が摺動自在に嵌挿されて背圧室２１を構成し
、かつバネ１６で弁座１２α（つまり、孔２２の周縁）
に当接付勢しである。In fact, as an example, FIG. 4 is a sectional view of a poppet large flow rate control valve, in which a hole 11 is formed in the valve body 10, and a sleeve 1 is inserted into this hole 11.
2 is placed in a low layer and is fixed by a push plate 13 and a nut 14, and a large-diameter first main bolt 1 is provided in the sleeve 12.
9f'+5 is slidably inserted to constitute the back pressure chamber 21, and the valve seat 12α (that is, the periphery of the hole 22) is pressed by the spring 16.
It comes in contact with and is energized.
前記弁本体１０には入口ボー）＋７と出口ボート１８と
が形成され、入口ボート１７は孔１９でスリーブ１２内
に開口し、かつ切欠き２０で背圧室２１に常時連通して
（八ると共に、出口ボート１８は前記孔２２に開口連通
している。The valve body 10 is formed with an inlet boat (+7) and an outlet boat (18), and the inlet boat (17) opens into the sleeve 12 through a hole 19 and constantly communicates with the back pressure chamber 21 through a notch (20). At the same time, the outlet boat 18 is in open communication with the hole 22.
前記背圧室２１は第１油孔２３に連通し、出口ポート１
８は第２油孔２４に連通していると共に、第１．第２油
孔２３．２４は小径の第２主ポペツト弁１ダで開閉され
るようにしである。The back pressure chamber 21 communicates with the first oil hole 23 and the outlet port 1
8 communicates with the second oil hole 24, and also communicates with the first oil hole 24. The second oil holes 23 and 24 are opened and closed by a small diameter second main poppet valve.
つまり、第２主ポペット升１５′は第１主ポペツト弁１
５と同一形状となり、弁本体１０の穴１１′内に押板１
３′とナラ）＋４とで固定されたスリーブｌ ２’内に
嵌挿さｎ、バネ＋ ６’で弁座１２’（Ｚに当接し、背
圧室２ ＋’は切欠き２０′で孔＋ ９’を経て第１油
路２３に開口し、孔２２′が第２油路２４に開口連通し
ている。In other words, the second main poppet box 15' is the first main poppet valve 1.
It has the same shape as 5, and the push plate 1 is placed in the hole 11' of the valve body 10.
The sleeve 12' is fixed with the spring 6' and the back pressure chamber 12' (Z) is fitted into the sleeve 2', which is fixed with the spring The hole 22' opens to the first oil passage 23 through the hole 9', and the hole 22' is in open communication with the second oil passage 24.
そして、背圧室２１′は第３油路２５と第４油Ｍ２６で
第２油路２４に連通し、第３．第４油路２５．２６は補
助ポペット弁２７で開閉されるようにしである。The back pressure chamber 21' communicates with the second oil passage 24 through a third oil passage 25 and a fourth oil M26. The fourth oil passages 25 and 26 are opened and closed by auxiliary poppet valves 27.
前記弁本体１０にはソレノイド２８が固着され、その可
動子２９に前記補助ポペット弁２７が連結しであると共
に、バネ３０で閉方向に押され、コイル３１への通電電
流によって開方向に移動されるようにしである。A solenoid 28 is fixed to the valve body 10, and the auxiliary poppet valve 27 is connected to a movable element 29 of the solenoid 28, and is pushed in the closing direction by a spring 30 and moved in the opening direction by a current applied to a coil 31. It is like that.
しかして、第１主ポペツト弁１５はバネ１６で弁座Ｉ２
αに押しつけられて入口ボート１７と出口ボート１８と
を閉じていると共に、入口ボート１７より流入した圧油
は切欠き２０より背圧室２１内に流入する。Thus, the first main poppet valve 15 is moved by the spring 16 to the valve seat I2.
α closes the inlet boat 17 and the outlet boat 18, and the pressure oil flowing from the inlet boat 17 flows into the back pressure chamber 21 through the notch 20.
この時、切欠き２０は傾斜して主ポペット弁１５が閉じ
ている時には背圧室２１と入口ポート１７との開口面積
が著しくなっている。つオリ、切欠き２０は主ポペット
弁１５が開放方向に移動するストロークに比９１１シて
開口面積が順次増大する可変絞りとなっている。At this time, the notch 20 is inclined so that when the main poppet valve 15 is closed, the opening area between the back pressure chamber 21 and the inlet port 17 becomes significant. The notch 20 is a variable throttle whose opening area increases sequentially in proportion to the stroke of the main poppet valve 15 in the opening direction.
前記背圧室２１内の圧油は第２主ポペツト弁１ダの切欠
き２０′より背圧室２１′内に流入すると共に％第１油
路２３と第２油路２４とは第２主ポペツト弁１ダで閉じ
ている。The pressure oil in the back pressure chamber 21 flows into the back pressure chamber 21' through the notch 20' of the second main poppet valve 1da, and the first oil passage 23 and the second oil passage 24 are connected to the second main poppet valve 1da. Closed with poppet valve 1.
なお、第２主ポペツト弁１５′の切欠き２０’も前述と
同様に可変絞りとなっている。Note that the notch 20' of the second main poppet valve 15' also has a variable throttle as described above.
一方、第３油路２５と第４油路２６とは力１ｊ助ポペッ
ト弁２７で閉じているから、背圧室２１′内の圧油が出
口ボートｔｇに流出することがなく、第２主ポペツト弁
１ダが開とならないから第１主ポペツト弁１５で入口ボ
ート１７と出口ボー）ＩＢとを確実に閉じることができ
る。On the other hand, since the third oil passage 25 and the fourth oil passage 26 are closed by the force 1j auxiliary poppet valve 27, the pressure oil in the back pressure chamber 21' does not flow out to the outlet boat tg. Since the poppet valve 1DA is not opened, the first main poppet valve 15 can reliably close the inlet boat 17 and the outlet boat IB.
そして、ソレノイド２８のコイル３１に従来と同様に山
形の搬送波と指令信号とによって第５図（α）に示すよ
うに順次長時間となるように断続的に通電すると％第ｆ
回目の通電によって可動子２９がバネ３０に抗して所定
時間吸引移動し、補助ポペット弁２７が所定時間開とな
って第３．第４油孔２５．２６が所定時間連通するので
、第２主ポペツト弁１５′の背圧室２１′内の圧油は出
口ボー）ＩＢに所定時間流出する。つまり、出口ボート
１８に流出する流量は時間とともに順次増大して第５図
ｆＡ＋のようになる。When the coil 31 of the solenoid 28 is intermittently energized for a long time as shown in FIG.
By the second energization, the mover 29 moves against the spring 30 by suction for a predetermined period of time, and the auxiliary poppet valve 27 is opened for a predetermined period of time. Since the fourth oil holes 25, 26 are in communication for a predetermined period of time, the pressure oil in the back pressure chamber 21' of the second main poppet valve 15' flows out to the outlet bow) IB for a predetermined period of time. In other words, the flow rate flowing out to the outlet boat 18 gradually increases over time until it becomes as shown in fA+ in FIG.
これにより、背圧室２１′内の油圧が低下するから第２
主ポペツト弁１５′のテーパ面１５′αに作用する油田
力で第２主ポペツト弁１５′がバネ１６′に抗して押さ
れて弁座１２’ｌＺよシ離れるから第１油路２３と第２
油路２４とが連通して第１主ポペツト弁１５の背圧室２
１内の圧油は出口ボート１８に流出する。As a result, the oil pressure inside the back pressure chamber 21' decreases, so the second
The oil field force acting on the tapered surface 15'α of the main poppet valve 15' pushes the second main poppet valve 15' away from the valve seat 12'lZ against the spring 16'. Second
The oil passage 24 communicates with the back pressure chamber 2 of the first main poppet valve 15.
The pressure oil in 1 flows out to the outlet boat 18.
一方、これと同時に切欠き２０′の開口面積が増大する
から背圧室２１′内の油圧が上昇して第２主ポペツト弁
１ダを閉じようとするので、切欠き２０′を通り背圧室
２１′内に流れる油量と補助ポペット弁２７で制御する
油相°がつり合う位置に第２主ポペツト弁１５′が開口
移動したところで力がバランスし、第１主ポペツト弁１
５の背圧室２１より出口ボート１８に流出する流量Ｑ、
が第５図ｔｅｌに示すように決定される。これと同様に
第１主ポペツト弁１５が開いて前記流」庄Ｑ、に見合う
流ｆｔ Ｑ２が第５図Ｉｄ）に示すように決定される。On the other hand, since the opening area of the notch 20' increases at the same time, the hydraulic pressure in the back pressure chamber 21' increases and attempts to close the second main poppet valve 1da, so that the back pressure passes through the notch 20'. When the second main poppet valve 15' opens and moves to a position where the amount of oil flowing into the chamber 21' and the oil phase controlled by the auxiliary poppet valve 27 are balanced, the forces are balanced and the first main poppet valve 1
The flow rate Q flowing out from the back pressure chamber 21 of No. 5 to the outlet boat 18,
is determined as shown in FIG. Similarly, the first main poppet valve 15 is opened and a flow ftQ2 corresponding to the flow Q is determined as shown in FIG. 5Id).
この様に、ソレノイド２８と補助ポペット弁２７とで小
′＃Ｌ情を制御し、その小流量の制御を第２主ポペツト
弁１５′で増幅して中流Ｍを制御し、その中流量のｆｌ
ｉ＋＋ ａ ｆ第１主ポペット弁１５で更に増幅して更
に大流量を測値１しているので、入口ボート１７よりυ
」ロボート１８に流れる流量を制御できると共に、大流
量を流すことができる。In this way, the solenoid 28 and the auxiliary poppet valve 27 control the small flow rate, the control of the small flow rate is amplified by the second main poppet valve 15' to control the middle flow M, and the middle flow rate fl
i++ a f Since the first main poppet valve 15 further amplifies and measures a larger flow rate, υ from the inlet boat 17
” The flow rate flowing into the robot 18 can be controlled and a large flow rate can be made to flow.
また、入口ボート１７と出口ボート１８とを第１主ポペ
ツト弁１５で開閉し、かつバネ１６で閉塞しているので
、油漏れ全確実に防止できる。Further, since the inlet boat 17 and the outlet boat 18 are opened and closed by the first main poppet valve 15 and closed by the spring 16, oil leakage can be completely prevented.
また、補助ポペット弁２７は第１．第２主ポペツト弁１
５ 、 ＋ ５’に比較して著しく小径となるから、背
圧室２１′内の油圧によって作用する開方向の推力Ｆ、
は著しく小さくなる。Further, the auxiliary poppet valve 27 is the first. 2nd main poppet valve 1
Since the diameter is significantly smaller than that of 5 and +5', the thrust force F in the opening direction, which is exerted by the hydraulic pressure in the back pressure chamber 21',
becomes significantly smaller.
このために、可動子２９を付勢するバネ３゜のバネ力を
小さくできると共に、補助ポペット弁２７をソレノイド
３１の推力で確実に開作動できる。Therefore, the spring force of the spring 3° that biases the movable element 29 can be reduced, and the auxiliary poppet valve 27 can be reliably opened by the thrust of the solenoid 31.
なお、ソレノイド２８への電流制御するパルス搬送波を
十分高くとり、かつ第２主ボベット弁１５’の開閉応答
周波＋９．をパルス搬送波周波数より十分低く設定する
ことで、入口ボート１７より出口ボート１８に流出する
主の流−峰の脈動発生金抑えることができる。Note that the pulse carrier wave for controlling the current to the solenoid 28 is set to be sufficiently high, and the opening/closing response frequency of the second main bobbet valve 15' is +9. By setting the frequency sufficiently lower than the pulse carrier frequency, it is possible to suppress the pulsation of the main stream flowing out from the inlet boat 17 to the outlet boat 18.
また、本発明に係る流廿制御升を第６図に示すように４
個接続してポンプＰの吐出圧油をシリンダＳに供給する
ようにしても良い。Furthermore, the flow control cell according to the present invention is as shown in FIG.
Alternatively, the pressure oil discharged from the pump P may be supplied to the cylinder S by connecting them individually.
発明の効果
入口ボート１７より出口ボート１８に流通する油量を制
御できると共に、油漏れ全確実に防止でき、しかも大流
量を流ノ曵できる。Effects of the Invention The amount of oil flowing from the inlet boat 17 to the outlet boat 18 can be controlled, oil leakage can be completely prevented, and a large flow rate can be pumped out.
第１図は従来の流量制イＭ１弁の断面図、第２図は流量
節１商］％性の説明図、第３図はポペット弁部分の拡大
図、第４図は本発明の一実施例を示す断面図、第５図は
流旬：制御特性説明図、第６図は使用例の説明図である
。
＋ ５ 、 ＋ ５’は第１．第２主ポペツト弁、１７
は入口ボート％ Ｉｇｉｄ出ロボート、２０．２０’は
可変絞り（切欠きン％ ２１ 、２ ＋’は背圧室。
（１１）
２７は補助ポペット弁、２８はソレノイド。
出願人 株式会社小松製作９Ｔ
代理人 弁理士 米 原 正 草
弁理士 浜 本 忠
（１２）
第２図
第３図Fig. 1 is a sectional view of a conventional flow rate control M1 valve, Fig. 2 is an explanatory diagram of flow rate node 1 quotient], Fig. 3 is an enlarged view of the poppet valve part, and Fig. 4 is an embodiment of the present invention. A sectional view showing an example, FIG. 5 is an explanatory diagram of the latest control characteristics, and FIG. 6 is an explanatory diagram of an example of use. +5 and +5' are the first. 2nd main poppet valve, 17
is the inlet boat % Igid exit boat, 20. 20' is the variable throttle (notch % 21, 2 +' is the back pressure chamber. (11) 27 is the auxiliary poppet valve, 28 is the solenoid. Applicant Komatsu Manufacturing Co., Ltd. 9T Agent Patent attorney Tadashi Yonehara Patent attorney Tadashi Hamamoto (12) Figure 2 Figure 3
Claims (1)
に入口ボート１７と背圧室２１とを常時開口連通し、か
つ連通方向に摺動するとそれＫつれて開口述通面債を順
次増大する可変絞り２０を有する第１主ポペツト弁１５
と、前記背圧室２１と出口ボート１８とを断通しかつ背
圧室２１′と背圧室２１とｆｆ：ｌ＋Ｉ′Ｔ通する可変
絞り２０′を有する小径の第２主ポペット升１ダと、そ
の背圧室２１′と出口ボート１８とを断通する補助ポペ
ット弁２７と、前記ｉ＋、＠２主ポペットポペット５
、 ＋ ５’をｇ断位置に保持するバネ１６゜１６′と
、前記補助ポペット弁２７を断通するソレノイド２ｇと
より構成したことを特徴とするポペット式流量制御弁。The inlet boat 17 and the outlet boat 1g communicate with each other, and the inlet boat 17 and the back pressure chamber 21 are always in open communication, and when sliding in the communication direction, the opening rate increases sequentially. First main poppet valve 15 with throttle 20
and a small-diameter second main poppet box 1 da having a variable throttle 20' that cuts off the back pressure chamber 21 and the exit boat 18 and passes the back pressure chamber 21' and the back pressure chamber 21 through ff:l+I'T. , an auxiliary poppet valve 27 that disconnects the back pressure chamber 21' from the outlet boat 18, and the i+@2 main poppet poppet 5.
, +5' in the g-off position, and a solenoid 2g that opens the auxiliary poppet valve 27.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4918784A JPS60196476A (en) | 1984-03-16 | 1984-03-16 | Poppet type flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4918784A JPS60196476A (en) | 1984-03-16 | 1984-03-16 | Poppet type flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60196476A true JPS60196476A (en) | 1985-10-04 |
Family
ID=12824024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4918784A Pending JPS60196476A (en) | 1984-03-16 | 1984-03-16 | Poppet type flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60196476A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000073665A1 (en) * | 1999-05-28 | 2000-12-07 | Shin Caterpillar Mitsubishi Ltd. | Valve device and hydraulic actuator control device |
| WO2002018800A3 (en) * | 2000-08-31 | 2002-10-17 | Husco Int Inc | Pilot solenoid control valve with an emergency operator |
| JP2005315350A (en) * | 2004-04-28 | 2005-11-10 | Hitachi Constr Mach Co Ltd | Control valve device and pressure circuit |
| WO2010134001A1 (en) * | 2009-05-18 | 2010-11-25 | Bucyrus Europe Gmbh | Hydraulic switching mechanism for mobile hydraulics, mobile hydraulic machine and valve unit |
| WO2011089503A1 (en) * | 2010-01-20 | 2011-07-28 | Eaton Corporation | Proportional valve assembly |
| JP2011163508A (en) * | 2010-02-12 | 2011-08-25 | Toyota Motor Corp | Hydraulic control device |
-
1984
- 1984-03-16 JP JP4918784A patent/JPS60196476A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000073665A1 (en) * | 1999-05-28 | 2000-12-07 | Shin Caterpillar Mitsubishi Ltd. | Valve device and hydraulic actuator control device |
| WO2002018800A3 (en) * | 2000-08-31 | 2002-10-17 | Husco Int Inc | Pilot solenoid control valve with an emergency operator |
| JP2005315350A (en) * | 2004-04-28 | 2005-11-10 | Hitachi Constr Mach Co Ltd | Control valve device and pressure circuit |
| WO2010134001A1 (en) * | 2009-05-18 | 2010-11-25 | Bucyrus Europe Gmbh | Hydraulic switching mechanism for mobile hydraulics, mobile hydraulic machine and valve unit |
| CN102575692A (en) * | 2009-05-18 | 2012-07-11 | 布西鲁斯欧洲有限公司 | Hydraulic switching mechanism for mobile hydraulics, mobile hydraulic machine and valve unit |
| US9206821B2 (en) | 2009-05-18 | 2015-12-08 | Caterpillar Global Mining Europe Gmbh | Hydraulic switching mechanism for mobile hydraulics, mobile hydraulic machine and valve unit |
| WO2011089503A1 (en) * | 2010-01-20 | 2011-07-28 | Eaton Corporation | Proportional valve assembly |
| US8291934B2 (en) | 2010-01-20 | 2012-10-23 | Eaton Corporation | Proportional valve assembly |
| CN102803745A (en) * | 2010-01-20 | 2012-11-28 | 伊顿公司 | Proportional valve assembly |
| JP2011163508A (en) * | 2010-02-12 | 2011-08-25 | Toyota Motor Corp | Hydraulic control device |
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