JPH08200531A - Constant flow valve - Google Patents
Constant flow valveInfo
- Publication number
- JPH08200531A JPH08200531A JP3142795A JP3142795A JPH08200531A JP H08200531 A JPH08200531 A JP H08200531A JP 3142795 A JP3142795 A JP 3142795A JP 3142795 A JP3142795 A JP 3142795A JP H08200531 A JPH08200531 A JP H08200531A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- orifice plate
- cylinder
- rod
- restriction
- 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
Landscapes
- Safety Valves (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、定流量弁すなわち、弁
前後の圧力が変化しても流量を一定に制御する自力調節
弁に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a constant flow valve, that is, a self-regulating valve that controls the flow rate constant even if the pressure before and after the valve changes.
【０００２】[0002]
【従来の技術】従来、この種の定流量弁として、オリフ
イスとダイアフラムを利用した図２に示す形式すなわち
下記のように作動するものは知られている。 記 無圧状態では、内弁アッセンブリー３１がスプリン
グ３２に押されて、弁３３は全開している。 流体は入口３４からオリフイス３５を通り、ケージ
３６内に入り、弁３３の絞り部を通過して出口３０へと
進む。（矢印） ダイアフラム３７の上にはケージ３６内の圧力（Ｐ
2 ）、下には入口３４側の圧力（Ｐ1 ）が入って来る。 Ｐ1 はＰ2 より大きいので常にダイアフラム３７を
持ち上げ、スプリング３２の押す力とつり合うところで
止まる。Ｐ1 が高く（低く）なれば、ダイアフラム３７
の下側の圧力が高く（低く）なり、弁３３を閉（開）の
方向に移動させる。このため、弁３３を通過する流量が
絞られ（開かれ）、Ｐ2 の値も高く（低く）なり、その
結果Ｐ1 とＰ2 との差圧△Ｐ12（＝Ｐ1 ーＰ2 ）は一定
となる。Ｐ3 が高く（低く）なった場合、Ｐ2 も高く
（低く）なるが、このためにダイアフラム３７上側の圧
力が高く（低く）なり、弁は開く（閉じる）方向に移動
し、結果としてＰ2 の値は小さく（大きく）なり、差圧
Ｐ12は一定に保たれる。このように、Ｐ1 、Ｐ3 が変動
しても、常に差圧Ｐ12は一定に維持され、固定オリフイ
スの前後差圧が一定のため、定流量がの実現される。 差圧が一定の場合、流量はオリフイスの開度に比例
するので、オリフイス開度を設定することにより、定流
量が保障される。2. Description of the Related Art Heretofore, as a constant flow valve of this type, a type using an orifice and a diaphragm as shown in FIG. 2, that is, one operating as follows is known. In the pressureless state, the inner valve assembly 31 is pushed by the spring 32 and the valve 33 is fully opened. The fluid passes from the inlet 34 through the orifice 35 into the cage 36, passes through the throttling portion of the valve 33 and proceeds to the outlet 30. (Arrow) The pressure inside the cage 36 (P
2 ), and the pressure (P 1 ) on the inlet 34 side enters below. Since P 1 is larger than P 2 , diaphragm 37 is always lifted and stops when it is balanced by the pushing force of spring 32. If P 1 is higher (lower), diaphragm 37
The pressure on the lower side becomes higher (lower) and moves the valve 33 in the closing (opening) direction. Therefore, throttled flow rate through the valve 33 (open), the value of P 2 is high (low) becomes the differential pressure △ P 12 and the result P 1 and P 2 (= P 1 over P 2) Is constant. When P 3 becomes high (low), P 2 also becomes high (low), but this causes the pressure on the upper side of the diaphragm 37 to become high (low), and the valve moves in the opening (closing) direction, resulting in P The value of 2 becomes smaller (larger), and the differential pressure P 12 is kept constant. In this way, even if P 1 and P 3 fluctuate, the differential pressure P 12 is always maintained constant, and since the differential pressure across the fixed orifice is constant, a constant flow rate is realized. When the differential pressure is constant, the flow rate is proportional to the opening of the orifice, so the constant flow rate is guaranteed by setting the orifice opening.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の技術におい
て述べた定流量弁は、ダイアフラムを利用していて構造
が複雑であり、液溜り部を無くすることができなく、ま
た流量設定が容易ではない等の欠陥を有している。The constant flow valve described in the above-mentioned prior art uses a diaphragm and has a complicated structure. Therefore, it is not possible to eliminate the liquid reservoir, and it is not easy to set the flow rate. There is a defect such as no.
【０００４】本発明は上記欠陥を解消した新規の定流量
弁を提供することを目的とする。An object of the present invention is to provide a new constant flow valve that eliminates the above-mentioned drawbacks.
【０００５】上記目的を達成するために本発明に係わる
定流量弁は、シリンダ１と、シリンダ１の一方端蓋２に
軸方向に移動可能として串通したロッド３と、シリンダ
１の周壁において一方端蓋２に近い個所に開設した入口
４と、シリンダ１の他方端蓋５に開設した出口６と、シ
リンダ１内にロッド３に沿って同内を移動可能として設
けたオリフイス板７と、出口６の内側に設けた、周壁面
に絞り孔８を開き天壁９を閉じた円筒形状の弁座１０
と、オリフイス板７に同板７と一体作動して絞り孔８を
開閉する状態として設けた、周壁面に内外連通孔１１を
もつ円筒形状の弁１２と、ロッド３の内端部とオリフイ
ス板７間に設けた、オリフイス板７および弁１２を絞り
孔８が開きの状態となる方向に押し戻すバネ１３と、を
備えたものである。In order to achieve the above object, a constant flow valve according to the present invention comprises a cylinder 1, a rod 3 slidably inserted in a lid 2 at one end of the cylinder 1 so as to be axially movable, and one end at a peripheral wall of the cylinder 1. An inlet 4 opened at a position close to the lid 2, an outlet 6 opened at the other end lid 5 of the cylinder 1, an orifice plate 7 provided inside the cylinder 1 so as to be movable along the rod 3, and an outlet 6 Cylindrical valve seat 10 provided on the inner side of the valve 10 with a throttle hole 8 opened on the peripheral wall and a ceiling wall 9 closed
And a cylindrical valve 12 having an inner and outer communication hole 11 on the peripheral wall, which is provided in the orifice plate 7 so as to integrally operate with the orifice plate 7 to open and close the throttle hole 8, an inner end portion of the rod 3 and the orifice plate. 7 and a spring 13 that pushes back the orifice plate 7 and the valve 12 in the direction in which the throttle hole 8 is opened.
【０００６】[0006]
【実施例】図１に示す本発明に係わる定流量弁実施例
は、上端に一方端蓋２をまた下端に他方端蓋５をそれぞ
れクランプ１５、１６により締付け固定することによっ
て上下両端面を閉塞した円筒状シリンダ１を構成し、一
方端蓋２にロッド３をネジ機構１７により軸方向に移動
可能として串通すると共にシリンダ１の周壁において一
方端蓋２に近い個所に連結用フランジ１８をもつ入口４
をまた他方端蓋５に連結用フランジ１９をもつ出口６を
それぞれ開設し、更にシリンダ１内に環状すき間２０お
よび孔２１をオリフイスとするオリフイス板７を入れ且
つ当該オリフイス板７を上記ロッド３に対して同ロッド
３に沿ってシリンダ１内を移動可能としてボス部２２に
より支承し、また出口６の内側に周壁面に絞り孔８を開
き天壁９を閉じた円筒形状の弁座１０を他方端蓋５に一
体に設けると共にオリフイス板７に同板７と一体に作動
して絞り孔８を開閉する状態として円筒状の弁１２を一
体に設け、この円筒形状弁１２の周壁面に内外に連通す
るスリット状内外連通孔１１を開設し、更にロッド３の
内端に複数個の通孔２３をもつ鍔状部２４を一体に設
け、この鍔状部２４の上面とオリフイス板７の下面間に
コイルバネ１３を当該バネ１３がオリフイス板７および
弁１２を絞り孔８が開きの状態となる方向に押圧するよ
うにして挟装したものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment of the constant flow valve according to the present invention shown in FIG. 1, upper and lower end surfaces are closed by fastening one end cover 2 at the upper end and the other end cover 5 at the lower end by clamps 15 and 16, respectively. An inlet having a connecting flange 18 at a position near the one end cover 2 on the peripheral wall of the cylinder 1 in which the rod 3 is slidably passed through the one end cover 2 by a screw mechanism 17 so as to be axially movable. Four
Further, the outlets 6 each having a connecting flange 19 are opened in the other end cover 5, and an orifice plate 7 having an annular gap 20 and a hole 21 as an orifice is inserted in the cylinder 1 and the orifice plate 7 is attached to the rod 3. On the other hand, a cylindrical valve seat 10 having a boss portion 22 supported so as to be movable in the cylinder 1 along the rod 3 and a throttle hole 8 opened on the peripheral wall surface inside the outlet 6 and a ceiling wall 9 closed is provided on the other side. A cylindrical valve 12 is integrally provided on the orifice plate 7 so as to operate integrally with the end plate 5 to open and close the throttle hole 8, and the cylindrical valve 12 is internally and externally provided on the peripheral wall surface. A slit-shaped internal / external communication hole 11 communicating with each other is provided, and a collar-shaped portion 24 having a plurality of through-holes 23 is integrally provided on the inner end of the rod 3. Apply the coil spring 13 to Spring 13 is obtained by sandwiched as pressed in a direction in which the state of the throttle hole 8 opens the orifice plate 7 and the valve 12.
【０００７】[0007]
【作用】本発明に係わる定流量弁は次のように作動す
る。すなわち、 液体が流れるとオリフイス板７に差圧（Ｐ1 ーＰ
2 ）が発生し、バネ１３とバランスする所まで弁１２が
移動する。 流量が増加すると、オリフイス板７に発生する差圧
（Ｐ1 ーＰ2 ）も増加する。すると、弁１２が下がり流
量が絞られ、Ｐ2 が高くなり、（Ｐ1 ーＰ2 ）が一定と
なる所でバランスし、流量が一定に保たれる。流量が低
下した場合も同じ様にしてバランスする。 流量設定値の調節は，バネ１３の与圧をロッド３の
有効長さの調節により変化させて弁１２のバランスの位
置を変えることによって行う。The constant flow valve according to the present invention operates as follows. That is, when the liquid flows, the differential pressure (P 1 -P 1
2 ) occurs and the valve 12 moves to a position where it balances with the spring 13. As the flow rate increases, the differential pressure (P 1 -P 2 ) generated on the orifice plate 7 also increases. Then, the valve 12 is lowered and the flow rate is throttled, P 2 is increased, and (P 1 −P 2 ) is balanced at a constant point, and the flow rate is kept constant. If the flow rate drops, balance in the same way. The flow rate setting value is adjusted by changing the pressurization of the spring 13 by adjusting the effective length of the rod 3 to change the balance position of the valve 12.
【０００８】[0008]
【発明の効果】本発明によれば、構造を簡単にすること
ができ、液溜りを無くすることができ、しかも流量設定
の容易化の達成ができる。According to the present invention, the structure can be simplified, the liquid pool can be eliminated, and the flow rate can be easily set.
【図１】本発明に係わる定流量弁の実施例を示す断面図
である。FIG. 1 is a cross-sectional view showing an embodiment of a constant flow valve according to the present invention.
【図２】従来例を示す断面図である。FIG. 2 is a sectional view showing a conventional example.
１ シリンダ ２ 一方端蓋 ３ ロッド ４ 入口 ５ 他方端蓋 ６ 出口 ７ オリフイス板 ８ 絞り孔 ９ 天壁 １０ 弁座 １１ 内外連通孔 １２ 弁 １３ バネ １５、１６ クランプ １７ ネジ機構 １８、１９ 連結用フランジ ２０ 環状すき間 ２１ 孔 ２２ ボス部 ２３ 通孔 ２４ 鍔状部 1 Cylinder 2 One End Lid 3 Rod 4 Inlet 5 Other End Lid 6 Outlet 7 Orifice Plate 8 Throttle Hole 9 Top Wall 10 Valve Seat 11 Inner / Outer Communication Hole 12 Valve 13 Spring 15, 16 Clamp 17 Screw Mechanism 18, 19 Connection Flange 20 Annular clearance 21 hole 22 boss portion 23 through hole 24 collar-shaped portion
【手続補正書】[Procedure amendment]
【提出日】平成７年２月１５日[Submission date] February 15, 1995
【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】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【書類名】 明細書[Document name] Statement
【発明の名称】 定流量弁[Title of Invention] Constant flow valve
【特許請求の範囲】[Claims]
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、定流量弁すなわち、弁
前後の圧力が変化しても流量を一定に制御する自力調節
弁に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a constant flow valve, that is, a self-regulating valve that controls the flow rate constant even if the pressure before and after the valve changes.
【０００２】[0002]
【従来の技術】従来、この種の定流量弁として、オリフ
イスとダイアフラムを利用した図２に示す形式すなわち
下記のように作動するものは知られている。 記 無圧状態では、内弁アッセンブリー３１がスプリン
グ３２に押されて、弁３３は全開している。 流体は入口３４からオリフイス３５を通り、ケージ
３６内に入り、弁３３の絞り部を通過して出口３０へと
進む。（矢印） ダイアフラム３７の上にはケージ３６内の圧力（Ｐ
２）、下には入口３４側の圧力（Ｐ１）が入って来る。 Ｐ１はＰ２より大きいので常にダイアフラム３７を
持ち上げ、スプリング３２の押す力とつり合うところで
止まる。Ｐ１が高く（低く）なれば、ダイアフラム３７
の下側の圧力が高く（低く）なり、弁３３を閉（開）の
方向に移動させる。このため、弁３３を通過する流量が
絞られ（開かれ）、Ｐ２の値も高く（低く）なり、その
結果Ｐ１とＰ２との差圧ΔＰ１２（＝Ｐ１−Ｐ２）は一
定となる。Ｐ３が高く（低く）なった場合、Ｐ２も高く
（低く）なるが、このためにダイアフラム３７上側の圧
力が高く（低く）なり、弁は開く（閉じる）方向に移動
し、結果としてＰ２の値は小さく（大きく）なり、差圧
Ｐ１２は一定に保たれる。このように、Ｐ１、Ｐ３が変
動しても、常に差圧Ｐ１２は一定に維持され、固定オリ
フイスの前後差圧が一定のため、定流量がの実現され
る。 差圧が一定の場合、流量はオリフイスの開度に比例
するので、オリフイス開度を設定することにより、定流
量が保障される。2. Description of the Related Art Heretofore, as a constant flow valve of this type, a type using an orifice and a diaphragm as shown in FIG. 2, that is, one operating as follows is known. In the pressureless state, the inner valve assembly 31 is pushed by the spring 32 and the valve 33 is fully opened. The fluid passes from the inlet 34 through the orifice 35 into the cage 36, passes through the throttling portion of the valve 33 and proceeds to the outlet 30. (Arrow) The pressure inside the cage 36 (P
2 ), and the pressure (P 1 ) on the inlet 34 side enters below. Since P 1 is larger than P 2 , diaphragm 37 is always lifted and stops when it balances the pushing force of spring 32. If P 1 becomes higher (lower), the diaphragm 37
The pressure on the lower side becomes higher (lower) and moves the valve 33 in the closing (opening) direction. Therefore, flow rate through the valve 33 is throttled (opened), the value of P 2 is also increased (decreased), resulting P 1 and the differential pressure [Delta] P 12 and P 2 (= P 1 -P 2) is It will be constant. When P 3 becomes high (low), P 2 also becomes high (low), but this causes the pressure above the diaphragm 37 to become high (low), and the valve moves in the opening (closing) direction, resulting in P The value of 2 becomes smaller (larger), and the differential pressure P 12 is kept constant. In this way, even if P 1 and P 3 fluctuate, the differential pressure P 12 is always maintained constant, and since the differential pressure across the fixed orifice is constant, a constant flow rate is realized. When the differential pressure is constant, the flow rate is proportional to the opening of the orifice, so the constant flow rate is guaranteed by setting the orifice opening.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の技術におい
て述べた定流量弁は、ダイアフラムを利用していて構造
が複雑であり、液溜り部を無くすることができない等の
欠陥を有している。The constant flow valve described in the above-mentioned prior art uses a diaphragm, has a complicated structure, and has a defect that the liquid reservoir cannot be eliminated. .
【０００４】本発明は上記欠陥を解消した新規の定流量
弁を提供することを目的とする。An object of the present invention is to provide a new constant flow valve that eliminates the above-mentioned drawbacks.
【０００５】上記目的を達成するために本発明に係わる
定流量弁は、シリンダ１と、シリンダ１の一方端蓋２に
軸方向に移動可能として串通したロッド３と、シリンダ
１の周壁において一方端蓋２に近い個所に開設した入口
４と、シリンダ１の他方端蓋５に開設した出口６と、シ
リンダ１内にロッド３に沿って同内を移動可能として設
けたオリフイス板７と、出口６の内側に設けた、周壁面
に絞り孔８を開き天壁９を閉じた円筒形状の弁座１０
と、オリフイス板７に同板７と一体作動して絞り孔８を
開閉する状態として設けた、周壁面に内外連通孔１１を
もつ円筒形状の弁１２と、ロッド３の内端部とオリフイ
ス板７間に設けた、オリフイス板７および弁１２を絞り
孔８が開きの状態となる方向に押し戻すバネ１３と、を
備えたものである。In order to achieve the above object, a constant flow valve according to the present invention comprises a cylinder 1, a rod 3 slidably inserted in a lid 2 at one end of the cylinder 1 so as to be axially movable, and one end at a peripheral wall of the cylinder 1. An inlet 4 opened at a position close to the lid 2, an outlet 6 opened at the other end lid 5 of the cylinder 1, an orifice plate 7 provided inside the cylinder 1 so as to be movable along the rod 3, and an outlet 6 Cylindrical valve seat 10 provided on the inner side of the valve 10 with a throttle hole 8 opened on the peripheral wall and a ceiling wall 9 closed
And a cylindrical valve 12 having an inner and outer communication hole 11 on the peripheral wall, which is provided in the orifice plate 7 so as to integrally operate with the orifice plate 7 to open and close the throttle hole 8, an inner end portion of the rod 3 and the orifice plate. 7 and a spring 13 that pushes back the orifice plate 7 and the valve 12 in the direction in which the throttle hole 8 is opened.
【０００６】[0006]
【実施例】図１に示す本発明に係わる定流量弁実施例
は、上端に一方端蓋２をまた下端に他方端蓋５をそれぞ
れクランプ１５、１６により締付け固定することによっ
て上下両端面を閉塞した円筒状シリンダ１を構成し、一
方端蓋２にロッド３をネジ機構１７により軸方向に移動
可能として串通すると共にシリンダ１の周壁において一
方端蓋２に近い個所に連結用フランジ１８をもつ入口４
をまた他方端蓋５に連結用フランジ１９をもつ出口６を
それぞれ開設し、更にシリンダ１内に環状すき間２０お
よび孔２１をオリフイスとするオリフイス板７を入れ且
つ当該オリフイス板７を上記ロッド３に対して同ロッド
３に沿ってシリンダ１内を移動可能としてボス部２２に
より支承し、また出口６の内側に周壁面に絞り孔８を開
き天壁９を閉じた円筒形状の弁座１０を他方端蓋５に一
体に設けると共にオリフイス板７に同板７と一体に作動
して絞り孔８を開閉する状態として円筒状の弁１２を一
体に設け、この円筒形状弁１２の周壁面に内外に連通す
るスリット状内外連通孔１１を開設し、更にロッド３の
内端に複数個の通孔２３をもつ鍔状部２４を一体に設
け、この鍔状部２４の上面とオリフイス板７の下面間に
コイルバネ１３を当該バネ１３がオリフイス板７および
弁１２を絞り孔８が開きの状態となる方向に押圧するよ
うにして挟装したものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment of the constant flow valve according to the present invention shown in FIG. 1, upper and lower end surfaces are closed by fastening one end cover 2 at the upper end and the other end cover 5 at the lower end by clamps 15 and 16, respectively. An inlet having a connecting flange 18 at a position near the one end cover 2 on the peripheral wall of the cylinder 1 in which the rod 3 is slidably passed through the one end cover 2 by a screw mechanism 17 so as to be axially movable. Four
Further, the outlets 6 each having a connecting flange 19 are opened in the other end cover 5, and an orifice plate 7 having an annular gap 20 and a hole 21 as an orifice is inserted in the cylinder 1 and the orifice plate 7 is attached to the rod 3. On the other hand, a cylindrical valve seat 10 having a boss portion 22 supported so as to be movable in the cylinder 1 along the rod 3 and a throttle hole 8 opened on the peripheral wall surface inside the outlet 6 and a ceiling wall 9 closed is provided on the other side. A cylindrical valve 12 is integrally provided on the end cover 5 so as to operate the orifice plate 7 integrally with the plate 7 to open and close the throttle hole 8. A slit-shaped internal / external communication hole 11 communicating with each other is provided, and a collar-shaped portion 24 having a plurality of through-holes 23 is integrally provided at the inner end of the rod 3. Between the upper surface of the collar-shaped portion 24 and the lower surface of the orifice plate 7. Apply the coil spring 13 to Spring 13 is obtained by sandwiched as pressed in a direction in which the state of the throttle hole 8 opens the orifice plate 7 and the valve 12.
【０００７】[0007]
【作用】本発明に係わる定流量弁は次のように作動す
る。すなわち、 液体が流れるとオリフイス板７に差圧（Ｐ１−
Ｐ２）が発生し、バネ１３とバランスする所まで弁１２
が移動する。 流量が増加すると、オリフイス板７に発生する差圧
（Ｐ１−Ｐ２）も増加する。すると、弁１２が下がり流
量が絞られ、Ｐ２が高くなり、（Ｐ１−Ｐ２）が一定と
なる所でバランスし、流量が一定に保たれる。流量が低
下した場合も同じ様にしてバランスする。 流量設定値の調節はバネ１３の与圧をロッド３の有
効長さの調節により変化させて弁１２のバランスの位置
を変えることによって行う。The constant flow valve according to the present invention operates as follows. That is, when the liquid flows, the differential pressure (P 1 −
P 2 ) is generated and the valve 12 is reached until it balances with the spring 13.
Moves. As the flow rate increases, the differential pressure (P 1 -P 2 ) generated on the orifice plate 7 also increases. Then, the valve 12 is lowered, the flow rate is throttled, P 2 is increased, and (P 1 −P 2 ) is balanced at a constant point, and the flow rate is kept constant. If the flow rate drops, balance in the same way. The flow rate setting value is adjusted by changing the pressurization of the spring 13 by adjusting the effective length of the rod 3 to change the balance position of the valve 12.
【０００８】[0008]
【発明の効果】本発明によれば、構造を簡単にすること
ができ、液溜りを無くすることができる。According to the present invention, the structure can be simplified and the liquid pool can be eliminated.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明に係わる定流量弁の実施例を示す断面図
である。FIG. 1 is a cross-sectional view showing an embodiment of a constant flow valve according to the present invention.
【図２】従来例を示す断面図である。FIG. 2 is a sectional view showing a conventional example.
【符号の説明】 １ シリンダ ２ 一方端蓋 ３ ロッド ４ 入口 ５ 他方端蓋 ６ 出口 ７ オリフイス板 ８ 絞り孔 ９ 天壁 １０ 弁座 １１ 内外連通孔 １２ 弁 １３ バネ １５、１６ クランプ １７ ネジ機構 １８、１９ 連結用フランジ ２０ 環状すき間 ２１ 孔 ２２ ボス部 ２３ 通孔 ２４ 鍔状部[Explanation of symbols] 1 cylinder 2 one end cover 3 rod 4 inlet 5 other end cover 6 outlet 7 orifice plate 8 throttle hole 9 top wall 10 valve seat 11 inner / outer communication hole 12 valve 13 springs 15, 16 clamp 17 screw mechanism 18, 19 Connection Flange 20 Annular Clearance 21 Hole 22 Boss 23 Through Hole 24 Collar
Claims (1)
に軸方向に移動可能として串通したロッド３と、シリン
ダ１の周壁において一方端蓋２に近い個所に開設した入
口４と、シリンダ１の他方端蓋５に開設した出口６と、
シリンダ１内にロッド３に沿って同内を移動可能として
設けたオリフイス板７と、出口６の内側に設けた、周壁
面に絞り孔８を開き天壁９を閉じた円筒形状の弁座１０
と、オリフイス板７に同板７と一体作動して絞り孔８を
開閉する状態として設けた、周壁面に内外連通孔１１を
もつ円筒形状の弁１２と、ロッド３の内端部とオリフイ
ス板７間に設けた、オリフイス板７および弁１２を絞り
孔８が開きの状態となる方向に押し戻すバネ１３と、を
備えたことを特徴とする定流量弁。1. A cylinder 1 and a one-end cover 2 of the cylinder 1.
A rod 3 which is axially movable so as to be movable in the axial direction, an inlet 4 opened at a position near the one end cover 2 on the peripheral wall of the cylinder 1, and an outlet 6 opened in the other end cover 5 of the cylinder 1.
An orifice plate 7 provided inside the cylinder 1 so as to be movable along the rod 3 and a cylindrical valve seat 10 provided inside the outlet 6 with a throttle hole 8 opened on a peripheral wall surface and a ceiling wall 9 closed.
And a cylindrical valve 12 having an inner and outer communication hole 11 on the peripheral wall, which is provided in the orifice plate 7 so as to integrally operate with the orifice plate 7 to open and close the throttle hole 8, an inner end portion of the rod 3 and the orifice plate. A constant flow valve, comprising: an orifice plate 7 and a spring 13 that pushes back the valve 12 in a direction in which the throttle hole 8 is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7031427A JP3032943B2 (en) | 1995-01-27 | 1995-01-27 | Constant flow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7031427A JP3032943B2 (en) | 1995-01-27 | 1995-01-27 | Constant flow valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08200531A true JPH08200531A (en) | 1996-08-06 |
| JP3032943B2 JP3032943B2 (en) | 2000-04-17 |
Family
ID=12330950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7031427A Expired - Fee Related JP3032943B2 (en) | 1995-01-27 | 1995-01-27 | Constant flow valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3032943B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822144A (en) * | 2019-06-27 | 2020-02-21 | 杭州春江阀门有限公司 | Constant flow valve |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7387183B2 (en) | 1995-06-07 | 2008-06-17 | Automotive Technologies International, Inc. | Weight measuring systems and methods for vehicles |
| US7766383B2 (en) * | 1998-11-17 | 2010-08-03 | Automotive Technologies International, Inc. | Vehicular component adjustment system and method |
-
1995
- 1995-01-27 JP JP7031427A patent/JP3032943B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822144A (en) * | 2019-06-27 | 2020-02-21 | 杭州春江阀门有限公司 | Constant flow valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3032943B2 (en) | 2000-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0428922B2 (en) | ||
| JPH05126106A (en) | Electromagnetic solenoid valve with variable force valve | |
| KR900003570A (en) | Gas Pressure / Gas Flow Compensation Direct Acting Pressure Regulator | |
| KR19990014930A (en) | Canister purge system with improved purge valve | |
| JPH0512725B2 (en) | ||
| US4979537A (en) | Pressure regulator | |
| US5062449A (en) | Vibration dampener for direct acting pressure regulator | |
| JPH08200531A (en) | Constant flow valve | |
| US5119859A (en) | Steam governing valve | |
| JP2663226B2 (en) | Constant flow valve | |
| DE4231241A1 (en) | Device for regulating the idle speed of an internal combustion engine | |
| JP3389103B2 (en) | Regulating valve | |
| DE69802033T2 (en) | Resonance damping in a flow controller | |
| JPH0755022A (en) | Valve device | |
| JP2002287830A (en) | Liquid control valve | |
| JPH0616179Y2 (en) | Flow control valve | |
| JPH0740784Y2 (en) | Valve for pressure control | |
| JPH085433Y2 (en) | Flow control valve | |
| JPH10246346A (en) | Rate adjusting valve | |
| JPH0962365A (en) | Pressure compensating flow control valve with check valve | |
| JPH0635548A (en) | Pressure control valve device | |
| JPS6224143Y2 (en) | ||
| JPH0432537Y2 (en) | ||
| JPS6141483Y2 (en) | ||
| JPS589287Y2 (en) | Solenoid flow control valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: R3D02 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090218 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 9 Free format text: PAYMENT UNTIL: 20090218 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 10 Free format text: PAYMENT UNTIL: 20100218 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100218 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 11 Free format text: PAYMENT UNTIL: 20110218 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120218 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130218 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 14 Free format text: PAYMENT UNTIL: 20140218 |
|
| LAPS | Cancellation because of no payment of annual fees |