JPS6335841B2 - - Google Patents
Info
- Publication number
- JPS6335841B2 JPS6335841B2 JP53034761A JP3476178A JPS6335841B2 JP S6335841 B2 JPS6335841 B2 JP S6335841B2 JP 53034761 A JP53034761 A JP 53034761A JP 3476178 A JP3476178 A JP 3476178A JP S6335841 B2 JPS6335841 B2 JP S6335841B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- flow path
- supply
- bladder
- container body
- 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
Links
- 239000007788 liquid Substances 0.000 claims description 67
- 238000007789 sealing Methods 0.000 claims description 2
- 230000003139 buffering effect Effects 0.000 description 6
- 230000010349 pulsation Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000013580 sausages Nutrition 0.000 description 1
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Description
【発明の詳細な説明】
本発明は、脈動吸収に効果の大きいアキユムレ
ータに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an accumulator that is highly effective in absorbing pulsation.
従来、脈動吸収の効果を高めるため、液体の全
量を容器本体内に流通させるアキユムレータは、
特開昭49−73218号公報に開示され、特にその図
面第５図に示されるものは、容器本体へ液体を出
入させる給排筒に、容器本体内へ突出する中央流
路を設け、この流路の上端に通孔を開口させ、中
央流路の外側に外流路が繞設される構成を有して
いる。 Conventionally, in order to increase the effect of pulsation absorption, an accumulator that distributes the entire amount of liquid within the container body has been used.
What is disclosed in Japanese Patent Application Laid-Open No. 49-73218, and particularly shown in FIG. It has a configuration in which a through hole is opened at the upper end of the channel and an outer channel is provided outside the central channel.
しかし、このアキユムレータは、中央流路へ下
方から入液部が接続され、外流路へは側方から出
液部が接続されている。従つて、このアキユムレ
ータを配管中へセツトする場合、出液部には配管
を直結できるが、入液部にはエルボ３つ使つた〓
形の中継管を使わないと配管がつなげないため、
配管が甚だ面倒である。 However, in this accumulator, the liquid inlet part is connected to the central flow path from below, and the liquid outlet part is connected to the outer flow path from the side. Therefore, when setting this accumulator into piping, the piping can be directly connected to the liquid outlet, but three elbows are used for the liquid inlet.
Since the piping cannot be connected without using a shaped relay pipe,
Piping is extremely troublesome.
〓形の中継管を使うと、この間において液流が
３回も90゜の方向変換をされて圧力損失を生じる。 If a square-shaped relay pipe is used, the liquid flow will change direction by 90 degrees three times during this time, resulting in a pressure loss.
中央流路内に開弁用のコイルばねが内装されて
いおり、流路の面積を縮少させるだけでなく、液
流の抵抗が大きく、且つ、乱流を生じさせるた
め、中央流路における圧力損失が大きい。 A coil spring for opening the valve is installed inside the central flow path, which not only reduces the area of the flow path, but also creates high resistance to liquid flow and turbulence, which reduces the pressure in the central flow path. The loss is huge.
中央流路の通孔と、出液部が図面より明らかな
通り、入液部よりも小さく設定されているため、
これらの部分においても圧力損失を生じる。 As is clear from the drawing, the hole in the central flow path and the liquid outlet are set smaller than the liquid inlet.
Pressure loss also occurs in these parts.
等の問題点があつた。There were other problems.
そこで、この発明の技術的課題は、アキユムレ
ータを横配管中へ容易にセツトできて、入液部、
出液部間における圧力損失が少ないことである。 Therefore, the technical problem of this invention is to easily set the accumulator in the horizontal piping, and to
The pressure loss between the liquid discharge parts is small.
この技術的課題を解決するために講じたこの発
明の技術的手段は、次の通りである。 The technical means of the present invention taken to solve this technical problem are as follows.
容器本体と、その内部を気体室と液体室とに
区画させるブラダと、前記気体室へ気体を封入
する手段と、前記液体室へ液体を出入させる給
排筒とを備えたアキユムレータにおいて、
前記給排筒の両側に対応的に設けた入液部及
び出液部と、
前記給排筒の中央部に、下端を前記入液部に
直通させ、上端を前記容器本体内へ突出させて
設けたエルボ形の中央流路と、
前記中央流路の容器本体内へ突出する部分と
給排筒内の部分とに設けた通孔と、
前記中央流路を囲繞させて給排筒内に設け、
下端を前記出液部に直通させた外流路と、
前記ブラダの底部に設けた前記中央流路の容
入手段とを備えさせたことである。 An accumulator comprising a container body, a bladder that divides the interior into a gas chamber and a liquid chamber, a means for sealing gas into the gas chamber, and a supply/discharge tube for introducing liquid into and out of the liquid chamber, A liquid inlet part and a liquid outlet part are provided correspondingly on both sides of the discharge tube, and a lower end is provided in the center of the supply and discharge tube with the lower end communicating directly with the liquid inlet part, and an upper end protruding into the container body. an elbow-shaped central flow path; a through hole provided in a portion of the central flow path protruding into the container body and a portion within the supply/discharge tube; and a through hole provided in the supply/discharge tube surrounding the central flow path;
The present invention is provided with: an outer channel whose lower end communicates directly with the liquid output section; and a receiving means for the central channel provided at the bottom of the bladder.
前記した技術手段の作用は次の通りである。 The operation of the above-mentioned technical means is as follows.
横配管を中断して、その一方を入液部に、他方
を出液部に接続して配管から入液部へ液体を流入
させると、液体はエルボ形の中央流路において、
１回90゜方向変換されるだけで、通孔を通つて容
器本体内へ流入し、ブラダに作用して液体の圧力
変動に伴うブラダの膨張、収縮の作用により、圧
力変動を吸収除去されると、外流路から出液部を
経て配管に送られるもので、この間に流路面積を
縮小させたり、液流に抵抗を与えたり、乱流を生
じさせたりするものがないため、液体の圧力損失
が殆ど起こらないものである。 When the horizontal piping is interrupted and one side is connected to the liquid inlet and the other to the liquid outlet and liquid flows from the piping to the liquid inlet, the liquid flows in the elbow-shaped central channel.
With just one 90° direction change, the liquid flows through the through hole into the container body, acts on the bladder, and absorbs and eliminates pressure fluctuations by expanding and contracting the bladder in response to pressure fluctuations in the liquid. The liquid is sent from the external flow path to the piping via the liquid outlet, and there is nothing in between to reduce the flow path area, provide resistance to the liquid flow, or cause turbulence, so the pressure of the liquid is reduced. There is almost no loss.
従つて、この発明は次の効果を生じる。 Therefore, this invention produces the following effects.
入液部と出液部との対向的配置により、直角配
置の場合に要した〓形の中継管を使わず、直結に
よつてアキユムレータを配管中に簡単にセツトで
きる。 Due to the opposing arrangement of the liquid inlet and outlet parts, the accumulator can be easily set in the piping by direct connection without using the square-shaped relay pipe required in the case of a right-angled arrangement.
〓形の中継管を省略し、中央流路に流路面積を
縮小して、液流に抵抗を与え、且つ乱流を起こす
部材を介在させないから、入液部と出液部間の圧
力損失を少なくすることができる。 By omitting the square-shaped relay pipe and reducing the flow area of the central flow path, there is no intervening member that provides resistance to the liquid flow and causes turbulence, reducing pressure loss between the liquid inlet and outlet part. can be reduced.
ブラダ底部の容入手段を中央流路に嵌合したか
ら、ブラダが容器本体と同心状を保つて正しく膨
縮し、効率の良い蓄圧作動を行うと共に、弁の閉
鎖に際してブラダが弁と弁座間へ挾み込まれるこ
とを防止できる。 Since the containment means at the bottom of the bladder is fitted into the central flow path, the bladder maintains concentricity with the main body of the container and expands and deflates correctly, allowing efficient pressure accumulation operation, and when the valve is closed, the bladder maintains the space between the valve and the valve seat. It can prevent it from getting caught in the
次に本発明の実施例を図面第１図〜第３図に基
づいて説明する。 Next, embodiments of the present invention will be described based on FIGS. 1 to 3 of the drawings.
この実施例の容器本体１は、ソーセージ形に形
成され、その中に上部の開口からブラダ２を挿入
して、このブラダの取付フランジ４を前記開口３
の下部に支持させる。 The container body 1 of this embodiment is formed into a sausage shape, into which a bladder 2 is inserted through an opening at the top and a mounting flange 4 of the bladder is inserted into the opening 3.
be supported at the bottom of the
前記容器本体１の蓋体６は、前記開口３内に嵌
め込んで、その下面を前記ブラダ２のフランジ４
上に当接して置き、上面を前記開口３に螺合した
リングナツト７により抑えさせて、ブラダ２を容
器本体１へ気密的に取付けさせ、容器本体１の内
部を前記ブラダ２により気体室と液体室とに区画
させる。 The lid 6 of the container body 1 is fitted into the opening 3, and its lower surface is connected to the flange 4 of the bladder 2.
The bladder 2 is airtightly attached to the container body 1 by placing the bladder 2 in contact with the container body 1 and holding the upper surface by a ring nut 7 screwed into the opening 3. It is divided into rooms.
こうして区画した気体室には、容器本体１の上
端に取付けた給気手段８から気体を封入し、液体
室には容器本体１の下端に設けた給排筒９から液
体を出入させる。 Gas is sealed in the thus divided gas chamber from an air supply means 8 attached to the upper end of the container body 1, and liquid is introduced into and out of the liquid chamber from a supply/discharge tube 9 provided at the lower end of the container body 1.
前記給排筒９は、その一側に入液部ａを設けて
配管１７を接続し、他側に出液部ｂを設けて配管
２０を接続し、中央部にはエルボ形の中央流路１
０を、その外側には中央流路１０を囲繞する外流
路１８を設けて、前記中央流路１０の上端は容器
本体１内へ突出させ、下端は入液部ａに直結して
ある。 The supply/discharge pipe 9 has a liquid inlet part a on one side to which the pipe 17 is connected, a liquid outlet part b on the other side to which the pipe 20 is connected, and an elbow-shaped central channel in the center. 1
0, and an outer flow path 18 surrounding the central flow path 10 is provided on the outside thereof, the upper end of the central flow path 10 protrudes into the container body 1, and the lower end is directly connected to the liquid input part a.
前記中央流路１０は、その容器本体１内へ突出
する部分に、図面第２図及び第３図に示すように
一連か、又は図面には示してないが分離させた通
孔１１を設けてある。 The central flow path 10 is provided with a series of through holes 11 as shown in FIGS. 2 and 3 in the drawings, or separate through holes 11 (not shown in the drawings) in the portion that protrudes into the container body 1. be.
又、前記給排筒９の上端には、弁座１９が形成
され、この弁座１９に対応させてブラダ２の底部
には弁体２１が取付けられ、この弁体２１には前
記中央流路１０を容入するための筒状の容入手段
２２を取付けてある。 A valve seat 19 is formed at the upper end of the supply/discharge pipe 9, and a valve body 21 is attached to the bottom of the bladder 2 in correspondence with the valve seat 19. A cylindrical accommodating means 22 for accommodating 10 is attached.
前記実施例において入液部ａに配管１７を、出
液部ｂに配管２０を接続すると、アキユムレータ
が横配管中へ簡単にセツトされる。 In the embodiment described above, by connecting the pipe 17 to the liquid inlet part a and the pipe 20 to the liquid outlet part b, the accumulator can be easily set into the horizontal pipe.
そして図面第２図に示すように弁体２１が閉じ
た状態において、配管１７から中央流路１０へ液
体を供給すると、液体は給排筒９に開口する通孔
１１から給排筒９内へ流出して、ブラダ２の底部
を押上するため、ブラダ２は図面第３図に示す様
に収縮して、容器本体１内へ通孔１１を開口させ
る。従つて、液体は中央流路１０において１回だ
け90゜方向変換されて、通孔１１から容器本体１
内へその全量が流入し、ブラダ２に圧力を及ぼ
す。するとブラダ２が封入気体と協働して液体の
圧力変動に応じた鋭敏な膨縮作動を行なうため、
液体はこの膨縮作動により脈動成分を吸収除去さ
れるもので、この状態を入液部側と出液部側とか
ら液体を取出して、その圧力変動の波形をオツシ
ログラフにより測定し、その結果と、同容量の汎
用アキユムレータを脈動吸収に用いた場合と、無
緩衝の場合とのオツシログラフによる圧力変動の
波形測定の結果とを対比して見ると、無緩衝では
入液部側が15.0Kg／cm2の場合、出液部側も15.0
Kg／cm2で等しいのに対し、汎用アキユムレータに
よる緩衝では、入液部側が6.3Kg／cm2の場合、出
液部側は3.5Kg／cm2に減少している。しかし、そ
の減衰状態は1/2弱に過ぎないが、本発明のアキ
ユムレータによる緩衝では、入液部側が6.3Kg／
cm3の場合、出液部側は1.0Kg／cm2に減少し、1/6以
上の減衰状態を示しており、汎用アキユムレータ
の３倍以上の緩衝性能を発揮することが証明され
た。しかも、中央流路に流路面積を縮小したり、
液流に抵抗を与えたり、乱流を起こさせたりする
部材が存在しないため、入液部、出液部間の圧力
損失が僅少であつた。 As shown in FIG. 2 of the drawings, when liquid is supplied from the piping 17 to the central channel 10 with the valve body 21 closed, the liquid flows into the supply/discharge tube 9 through the through hole 11 that opens in the supply/discharge tube 9. Since the fluid flows out and pushes up the bottom of the bladder 2, the bladder 2 contracts as shown in FIG. 3 of the drawing, opening a through hole 11 into the container body 1. Therefore, the liquid is redirected by 90° only once in the central channel 10 and flows from the through hole 11 into the container body 1.
The entire amount flows into the bladder 2 and exerts pressure on the bladder 2. Then, the bladder 2 cooperates with the enclosed gas to perform a sharp expansion and contraction operation in response to the pressure fluctuations of the liquid.
The pulsating components of the liquid are absorbed and removed by this expansion and contraction operation, and this state can be determined by taking out the liquid from the liquid inlet side and the liquid outlet side, measuring the waveform of the pressure fluctuation with an oscillograph, and comparing the results with the results. Comparing the results of waveform measurement of pressure fluctuations using an oscillograph when a general-purpose accumulator of the same capacity is used for pulsation absorption and when no buffer is used, it is found that the liquid input side is 15.0 Kg/cm 2 with no buffer. In the case of , the liquid output side is also 15.0
Kg/cm 2 is the same, but with buffering using a general-purpose accumulator, when the liquid input side is 6.3 kg/cm 2 , the liquid output side is reduced to 3.5 kg/cm 2 . However, the attenuation state is only a little less than 1/2, but with the buffering by the accumulator of the present invention, the liquid input side is 6.3 kg /
cm 3 , the liquid output side decreased to 1.0 Kg/cm 2 , showing a damping state of more than 1/6, proving that it exhibits a buffering performance more than three times that of a general-purpose accumulator. Moreover, the flow area can be reduced to the central flow path,
Since there are no members that provide resistance to the liquid flow or cause turbulence, the pressure loss between the liquid input section and the liquid output section is small.
第１図は本発明に関するアキユムレータの実施
例を一部分を縦断して示す全体図。第２図及び第
３図は同上の要部の構成を示す縦断正面図で、第
２図は開弁状態を、第３図は閉弁状態を示す。第
４図〜第６図は脈動の減衰状態を示すオツシログ
ラフの波形図で、第４図は無緩衝の場合を、第５
図は汎用アキユムレータで緩衝した場合を、第６
図は本発明のアキユムレータで緩衝した場合をそ
れぞれ示すもので、各図の上段の線図は入液部側
を、下段の線図は出液部側を示している。
図中１は容器本体、２はブラダ、９は液体の給
排筒、ａは入液部、ｂは出液部、１０は中央流
路、１１は通孔、１８は外流路、２２は中央流路
の容入手段である。
FIG. 1 is a partial longitudinal sectional view of an embodiment of an accumulator according to the present invention. FIGS. 2 and 3 are longitudinal sectional front views showing the configuration of the main parts same as above, with FIG. 2 showing the valve in the open state and FIG. 3 showing the valve in the closed state. Figures 4 to 6 are waveform diagrams of oscillographs showing the attenuation state of pulsation. Figure 4 shows the case without buffering,
The figure shows the case of buffering with a general-purpose accumulator.
The figures each show the case of buffering with the accumulator of the present invention, with the upper line diagram in each figure showing the liquid inlet side and the lower line figure showing the liquid outlet side. In the figure, 1 is the container body, 2 is the bladder, 9 is the liquid supply/discharge tube, a is the liquid inlet, b is the liquid outlet, 10 is the central flow path, 11 is the through hole, 18 is the outer flow path, and 22 is the center It is a means for containing the flow path.
Claims (1)
区画させるブラダと、前記気体室へ気体を封入す
る手段と、前記液体室へ液体を出入させる給排筒
とを備えたアキユムレータにおいて、 前記給排筒の両側に対応的に設けた入液部及び
出液部と、 前記給排筒の中央部に、下端を前記入液部に直
通させ、上端を前記容器本体内へ突出させて設け
たエルボ形の中央流路と、 前記中央流路の容器本体内へ突出する部分と給
排筒内の部分とに設けた通孔と、 前記中央流路を囲繞させて給排筒内に設け、下
端を前記出液部に直通させた外流路と、 前記ブラダの底部に設けた前記中央流路の容入
手段とを備えさせたことを特徴とするアキユムレ
ータ。[Scope of Claims] 1. A container body, a bladder that divides the inside of the container into a gas chamber and a liquid chamber, means for sealing gas into the gas chamber, and a supply/discharge tube for introducing liquid into and out of the liquid chamber. In the accumulator, a liquid inlet part and a liquid outlet part are provided correspondingly on both sides of the supply/discharge tube, a central part of the supply/discharge tube has a lower end directly connected to the liquid input part, and an upper end connected to the container body. an elbow-shaped central flow path protruding inward; a through hole provided between a portion of the central flow path protruding into the container body and a portion within the supply/discharge cylinder; and a hole surrounding the central flow path. What is claimed is: 1. An accumulator comprising: an outer flow path provided in a supply/discharge tube and having a lower end directly connected to the liquid outlet; and a storage means for the central flow path provided at the bottom of the bladder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3476178A JPS54127023A (en) | 1978-03-25 | 1978-03-25 | Accumulator performing three functions of pressure accumulation* buffer and high frequency pulsation as well as absorption with a middle tube in an airing cylinder projecting into vessel body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3476178A JPS54127023A (en) | 1978-03-25 | 1978-03-25 | Accumulator performing three functions of pressure accumulation* buffer and high frequency pulsation as well as absorption with a middle tube in an airing cylinder projecting into vessel body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54127023A JPS54127023A (en) | 1979-10-02 |
| JPS6335841B2 true JPS6335841B2 (en) | 1988-07-18 |
Family
ID=12423289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3476178A Granted JPS54127023A (en) | 1978-03-25 | 1978-03-25 | Accumulator performing three functions of pressure accumulation* buffer and high frequency pulsation as well as absorption with a middle tube in an airing cylinder projecting into vessel body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54127023A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2589047Y2 (en) * | 1993-03-29 | 1999-01-20 | 自動車機器株式会社 | Pulsation absorber for hydraulic brake booster |
| JP3906915B2 (en) | 2002-07-15 | 2007-04-18 | 株式会社アドヴィックス | Hydraulic circuit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4978218A (en) * | 1972-11-04 | 1974-07-27 |
-
1978
- 1978-03-25 JP JP3476178A patent/JPS54127023A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4978218A (en) * | 1972-11-04 | 1974-07-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54127023A (en) | 1979-10-02 |
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