JP2001124001A - Accumulator and manufacturing method therefor - Google Patents
Accumulator and manufacturing method thereforInfo
- Publication number
- JP2001124001A JP2001124001A JP30056199A JP30056199A JP2001124001A JP 2001124001 A JP2001124001 A JP 2001124001A JP 30056199 A JP30056199 A JP 30056199A JP 30056199 A JP30056199 A JP 30056199A JP 2001124001 A JP2001124001 A JP 2001124001A
- Authority
- JP
- Japan
- Prior art keywords
- cap member
- metal bellows
- accumulator
- pressure vessel
- concave portion
- 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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
- F15B1/103—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means the separating means being bellows
-
- 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
- F15B2201/00—Accumulators
- F15B2201/20—Accumulator cushioning means
- F15B2201/205—Accumulator cushioning means using gas
-
- 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
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/315—Accumulator separating means having flexible separating means
- F15B2201/3153—Accumulator separating means having flexible separating means the flexible separating means being bellows
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、車両用ブレーキシ
ステムの油圧装置や各種産業用液圧システムなどで蓄圧
や脈動吸収を行うために用いられる金属ベローズを用い
たアキュムレータ及びその製造方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an accumulator using a metal bellows used for accumulating pressure and absorbing pulsation in a hydraulic device of a vehicle brake system and various industrial hydraulic systems, and a method of manufacturing the same. is there.
【0002】[0002]
【従来の技術】車両用ブレーキシステムの油圧装置や各
種産業用液圧システムなどに用いられるアキュムレータ
として、圧力容器の内部に一端が固定され、他端がキャ
ップ部材により閉塞された伸縮自在な金属ベローズを受
容し、これにより外部回路に接続された液室と高圧気体
を密封したガス室とに分離したものがある。このような
アキュムレータにあっては、外部回路から伝わる液圧が
ガス室に封入されたガス圧力より低いとき、金属ベロー
ズが伸縮し、キャップ部材に設けられた弁体が液室の開
口の周縁に押し付けられ、これに密着して閉塞し、液室
の圧力をガス室と同圧以下にならないように自己シール
している。従って、この弁体のキャップ部材に対する取
り付け精度がシール性を高める上で重要である。一方、
キャップ部材の周縁には金属ベローズの端縁が接合され
る。そのため該周縁部を接合し易く加工するようになっ
ている。そして、ガス室と液室との密閉性を高めるため
にキャップ部材の加工精度及び接合時の両者の位置決め
精度を高める必要がある。2. Description of the Related Art As an accumulator used for a hydraulic device of a vehicle brake system or various industrial hydraulic systems, an extensible metal bellows having one end fixed inside a pressure vessel and the other end closed by a cap member. And a liquid chamber connected to an external circuit and a gas chamber in which high-pressure gas is sealed. In such an accumulator, when the hydraulic pressure transmitted from the external circuit is lower than the gas pressure sealed in the gas chamber, the metal bellows expands and contracts, and the valve element provided on the cap member is positioned on the periphery of the opening of the liquid chamber. The gas chamber is pressed against and tightly closed, and self-sealing is performed so that the pressure of the liquid chamber does not become lower than that of the gas chamber. Therefore, the accuracy with which the valve element is attached to the cap member is important for improving the sealing performance. on the other hand,
The edge of the metal bellows is joined to the periphery of the cap member. Therefore, the peripheral portion is processed so as to be easily joined. Then, in order to enhance the sealing between the gas chamber and the liquid chamber, it is necessary to increase the processing accuracy of the cap member and the positioning accuracy of both at the time of joining.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、従来の
キャップ部材は打ち抜き加工された略円板状をなし、上
記加工等の位置決めはその周縁により行っているが、そ
の加工精度は打ち抜き型の精度に依存するため、その精
度向上に限度があった。また、キャップ部材の周縁の加
工時には、まず、周縁で位置決めして部分的に切削加工
し、この加工した部分により位置決めし直して周縁を切
削加工していることからその工数が増えると共に工数が
増える分精度が低下する問題があった。However, the conventional cap member is formed into a substantially disk shape by punching, and the positioning of the above-mentioned processing and the like is performed by the peripheral edge thereof. Therefore, there is a limit in improving the accuracy. Further, when processing the peripheral edge of the cap member, first, the peripheral edge is positioned and partially cut, and the peripheral edge is cut and repositioned by the processed portion, so that the number of steps increases and the number of steps increases. There was a problem that the minute accuracy was reduced.
【0004】本発明は、上記したような従来技術の問題
点に鑑みなされたものであり、アキュムレータの金属ベ
ローズ端面を密閉すると共に自己シールするための弁体
を備えるキャップ部材の加工精度、弁体取り付け精度及
び金属ベローズへの取り付け精度を簡単な構造により向
上することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the prior art, and has been made in consideration of the processing accuracy of a cap member having a valve body for sealing and self-sealing an end surface of a metal bellows of an accumulator, and a valve body. An object of the present invention is to improve the mounting accuracy and the mounting accuracy to a metal bellows with a simple structure.
【0005】[0005]
【課題を解決するための手段】上記した目的は、本発明
によれば、圧力容器内に受容され、該圧力容器内を、外
部回路に接続された液室と高圧気体を密封したガス室と
に分離するべく、一端が前記圧力容器に固定され、かつ
他端がキャップ部材により閉塞された伸縮自在な金属ベ
ローズを有すると共に前記金属ベローズの前記キャップ
部材に前記外部回路に連通する流路の開口を閉塞する弁
体が設けられたアキュムレータであって、前記キャップ
部材が、その中心に絞り加工により形成された凹部を有
し、前記キャップ部材の外周縁が前記凹部を基準にして
加工され、かつ前記弁体が前記凹部を基準にして取り付
けられていることを特徴とするアキュムレータ、及び圧
力容器内に受容され、該圧力容器内を、外部回路に接続
された液室と高圧気体を密封したガス室とに分離するべ
く、一端が前記圧力容器に固定され、かつ他端がキャッ
プ部材により閉塞された伸縮自在な金属ベローズを有す
ると共に前記金属ベローズの前記キャップ部材に前記外
部回路に連通する流路の開口を閉塞する弁体が設けられ
たアキュムレータの製造方法であって、前記キャップ部
材の中心に絞り加工により凹部を形成し、前記キャップ
部材の外周縁を前記凹部を基準にして加工し、かつ前記
弁体を前記凹部を基準にして取り付けることを特徴とす
るアキュムレータの製造方法を提供することにより達成
される。特に前記金属ベローズ内部が前記液室をなし、
前記圧力容器と前記金属ベローズとの間が前記ガス室を
なし、前記弁体が前記ガス室の前記キャップ部材の前記
凹部と相反する凸面に設けられていると良い。SUMMARY OF THE INVENTION According to the present invention, there is provided, in accordance with the present invention, a pressure vessel having a liquid chamber connected to an external circuit and a gas chamber sealed with high-pressure gas. An opening of a flow passage having an extendable metal bellows having one end fixed to the pressure vessel and the other end closed by a cap member, and communicating with the external circuit through the cap member of the metal bellows. An accumulator provided with a valve element that closes the cap member, wherein the cap member has a concave portion formed by drawing at the center thereof, and an outer peripheral edge of the cap member is processed with reference to the concave portion, and An accumulator characterized in that the valve body is mounted with reference to the recess, and a pressure chamber received in a pressure vessel and a liquid chamber connected to an external circuit and having a high pressure. In order to separate the body from the sealed gas chamber, one end is fixed to the pressure vessel, and the other end has an extendable metal bellows closed by a cap member, and the external circuit is provided on the cap member of the metal bellows. A method for manufacturing an accumulator provided with a valve element that closes an opening of a flow path communicating with the accumulator, wherein a recess is formed by drawing at the center of the cap member, and an outer peripheral edge of the cap member is based on the recess. This is achieved by providing a method for manufacturing an accumulator, characterized in that the accumulator is processed with the concave portion as a reference. In particular, the inside of the metal bellows forms the liquid chamber,
The gas chamber may be formed between the pressure vessel and the metal bellows, and the valve body may be provided on a convex surface of the gas chamber opposite to the concave portion of the cap member.
【0006】[0006]
【発明の実施の形態】以下に、本発明が適用されたアキ
ュムレータの好適な実施形態について詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of an accumulator to which the present invention is applied will be described below in detail.
【0007】図1は本発明が適用されたアキュムレータ
の側断面図である。圧力容器としてのハウジング1の内
部は、これに受容された金属ベローズアセンブリ2によ
ってガス室3と液室4とに仕切られている。金属ベロー
ズアセンブリ2は、一端がハウジング1に固定され、か
つ多数のひだが形成されてハウジング1の軸方向に伸縮
自在な金属ベローズ5と、この金属ベローズ5の自由端
に取り付けられたキャップ部材6と、このキャップ部材
6の金属ベローズ5内側に取り付けられたゴム等のエラ
ストマ材からなる弁体7とから構成されている。金属ベ
ローズ5内の液室3はハウジング1に設けられた開口8
aから流路8を通じて外部回路と連通し、ハウジング1
の内部であってかつ金属ベローズ5の外部のガス室4に
は圧縮ガスが密封されている。FIG. 1 is a side sectional view of an accumulator to which the present invention is applied. The interior of the housing 1 as a pressure vessel is partitioned into a gas chamber 3 and a liquid chamber 4 by a metal bellows assembly 2 received therein. The metal bellows assembly 2 has a metal bellows 5 fixed at one end to the housing 1 and formed with a large number of folds so as to be able to expand and contract in the axial direction of the housing 1, and a cap member 6 attached to a free end of the metal bellows 5. And a valve body 7 made of an elastomer material such as rubber attached to the inside of the metal bellows 5 of the cap member 6. The liquid chamber 3 in the metal bellows 5 has an opening 8 provided in the housing 1.
a through the flow path 8 to communicate with the external circuit,
The compressed gas is sealed in the gas chamber 4 inside the metal bellows 5 and outside the metal bellows 5.
【0008】このようなアキュムレータにあっては、流
路8内がアキュムレータに封入されたガス圧力よりも高
い液圧となっている場合、流路8内の圧力とガス室4内
圧力とが同圧となるまで金属ベローズ5が伸張し、その
過程で開口8aから弁体7が離れ、液室3と流路8とが
連通すると共に金属ベローズ5の収縮分だけ蓄圧され
る。図示されないポンプの脈動、停止、負荷の変動など
により流路8の液圧が下がると、流路8の液圧を保持し
ようとする方向で金属ベローズ5が収縮する。そして、
流路8の液圧がアキュムレータに封入されたガス圧力よ
り低くなると、想像線に示すように弁体7が開口8aの
周縁に押し付けられ、これに密着して開口8aを閉塞
し、液室3の圧力をガス室4と同圧以下にならないよう
に自己シールするようになっている。In such an accumulator, when the pressure in the flow path 8 is higher than the gas pressure sealed in the accumulator, the pressure in the flow path 8 and the pressure in the gas chamber 4 are the same. The metal bellows 5 expands until pressure is reached. In the process, the valve body 7 separates from the opening 8a, the liquid chamber 3 communicates with the flow path 8, and the pressure is accumulated by the contraction of the metal bellows 5. When the hydraulic pressure in the flow path 8 decreases due to pulsation, stoppage, load fluctuation, and the like of a pump (not shown), the metal bellows 5 contracts in a direction to maintain the hydraulic pressure in the flow path 8. And
When the liquid pressure in the flow path 8 becomes lower than the gas pressure sealed in the accumulator, the valve element 7 is pressed against the periphery of the opening 8a as shown by an imaginary line, and closes the opening 8a to close the opening 8a. Is self-sealed so that the pressure of the gas chamber 4 does not become lower than the same pressure.
【0009】ここで、液室3とガス室4との間の密閉性
を確保するためにはキャップ部材6の端縁と金属ベロー
ズ5の端縁とが精度良く整合した状態で接合されている
必要がある。また、弁体7が開口8aを確実に閉塞する
ためには、上記に加えてキャップ部材6に弁体7が位置
精度良く取り付けられている必要がある。Here, in order to ensure the airtightness between the liquid chamber 3 and the gas chamber 4, the edge of the cap member 6 and the edge of the metal bellows 5 are joined in a state where they are precisely aligned. There is a need. Further, in order to ensure that the valve 7 closes the opening 8a, the valve 7 needs to be attached to the cap member 6 with high positional accuracy in addition to the above.
【0010】そのため、本構成ではキャップ部材6の中
心に絞り加工により形成された凹部6aが形成され、キ
ャップ部材6の外周縁がこの凹部6aを基準にして加工
され、かつ弁体7が凹部6aを基準にして取り付けられ
ている。加えて金属ベローズ5に対して凹部6aを基準
にして位置決めされ接合されている。Therefore, in this configuration, a concave portion 6a formed by drawing is formed at the center of the cap member 6, the outer peripheral edge of the cap member 6 is processed with reference to the concave portion 6a, and the valve element 7 is formed in the concave portion 6a. It is attached on the basis of. In addition, it is positioned and joined to the metal bellows 5 with reference to the recess 6a.
【0011】具体的にまずキャップ部材6を製造するに
は、円盤状の平板材を打ち抜き加工により形成し、絞り
加工またはプレス加工によりその中央に凹部6aを形成
する。そしてこの凹部6aを保持し、これにより位置決
めしてプレス加工により周縁を加工する。ここで、旋盤
により周縁を切削加工しても良い。次に同じく凹部6a
を保持し、これにより位置決めして加硫によりゴム等の
エラストマ材からなる弁体7を形成することによりキャ
ップ部材6が完成する。Specifically, to manufacture the cap member 6, first, a disc-shaped flat plate is formed by punching, and a concave portion 6a is formed at the center by drawing or pressing. Then, the concave portion 6a is held, positioned by this, and the peripheral edge is processed by press working. Here, the periphery may be cut by a lathe. Next, similarly, the concave portion 6a
The cap member 6 is completed by forming a valve body 7 made of an elastomer material such as rubber by vulcanization.
【0012】更に上記同様凹部6aを保持し、これによ
り位置決めして、内径または外径を保持して位置決めし
た金属ベローズ5の遊端縁とキャップ部材6の周縁とを
整合させて溶接等により接合して金属ベローズアセンブ
リ2が完成する。この金属ベローズアセンブリ2のキャ
ップ部材6と相反する解放端をハウジング1に溶接等に
より接合することとなる。Further, the concave portion 6a is held in the same manner as described above, and is positioned by this. The free end edge of the metal bellows 5 which is positioned while holding the inner or outer diameter is aligned with the peripheral edge of the cap member 6 and joined by welding or the like. Thus, the metal bellows assembly 2 is completed. The open end opposite to the cap member 6 of the metal bellows assembly 2 is joined to the housing 1 by welding or the like.
【0013】尚、図に示すように、本構成のような金属
ベローズ5の外部にガス室が画定されるタイプのアキュ
ムレータでは、ハウジング1に於ける開口8aと相反す
る側にガス封入用孔10が形成されたプラグリテーナ1
1が設けられている。このプラグリテーナ11はガス封
入後にプラグ12をはめ込み保持するようになっている
ため、内側に突出していることが多い。そこで、金属ベ
ローズ5の伸張時にこの突出部分11aが入り込むよう
に凹部6aの径及び深さを設定すれば金属ベローズ5の
ストロークを大きくとれ、蓄圧容量が大きくなる。As shown in the figure, in an accumulator of this type in which a gas chamber is defined outside the metal bellows 5, a gas filling hole 10 is formed on the side of the housing 1 opposite to the opening 8a. Plug retainer 1 formed with
1 is provided. Since the plug retainer 11 fits and holds the plug 12 after gas is sealed, it often projects inward. Therefore, if the diameter and depth of the concave portion 6a are set so that the protruding portion 11a enters when the metal bellows 5 is extended, the stroke of the metal bellows 5 can be increased, and the pressure accumulation capacity increases.
【0014】上記構成では金属ベローズ5内を液室3と
し、ハウジング1の内部であってかつ金属ベローズ5の
外部をガス室4としたが、その逆に金属ベローズ5内を
ガス室とし、ハウジング1の内部であってかつ金属ベロ
ーズ5の外部を液室としても良いことは言うまでもな
い。In the above construction, the interior of the metal bellows 5 is the liquid chamber 3, and the interior of the housing 1 and the exterior of the metal bellows 5 is the gas chamber 4. On the contrary, the interior of the metal bellows 5 is the gas chamber. Needless to say, the liquid chamber inside the metal bellows 5 and outside the metal bellows 5 may be used.
【0015】[0015]
【発明の効果】上記した説明により明らかなように、本
発明によるアキュムレータ及びその製造方法によれば、
圧力容器内を、外部回路に接続された液室と高圧気体を
密封したガス室とに分離するべく、一端が圧力容器に固
定され、かつ他端がキャップ部材により閉塞された伸縮
自在な金属ベローズを有すると共に金属ベローズのキャ
ップ部材に外部回路に連通する流路の開口を閉塞する弁
体が設けられたアキュムレータの上記キャップ部材の中
心に絞り加工により凹部を形成し、キャップ部材の外周
縁の加工及び弁体の取り付けをこの凹部を基準にして行
うことで、打ち抜き加工された周縁を基準にするのに比
較してその精度が向上するばかりでなく、周縁のプレス
または切削加工時に持ち替える必要がなくなるため、周
縁に複数の加工を施しても芯合わせが狂うことがなく、
工数も削減される。As is apparent from the above description, according to the accumulator and the method of manufacturing the same according to the present invention,
An extensible metal bellows, one end of which is fixed to the pressure vessel and the other end of which is closed by a cap member, for separating the inside of the pressure vessel into a liquid chamber connected to an external circuit and a gas chamber in which high-pressure gas is sealed. A concave portion is formed by drawing at the center of the cap member of an accumulator provided with a valve body that closes an opening of a flow path communicating with an external circuit in a cap member of a metal bellows, and processing of an outer peripheral edge of the cap member By mounting the valve body with reference to this recess, not only the accuracy is improved compared to the case where the punched edge is used as a reference, but also there is no need to change the periphery when pressing or cutting the edge. Therefore, even if multiple processings are performed on the periphery, the alignment will not be out of order,
Man-hours are also reduced.
【図1】本発明が適用された第1の実施形態を示すアキ
ュムレータの側断面図。FIG. 1 is a side sectional view of an accumulator showing a first embodiment to which the present invention is applied.
1 ハウジング 2 金属ベローズアセンブリ 3 液室 4 ガス室 5 金属ベローズ 6 キャップ部材 6a 凹部 7 弁体 8 流路 8a 開口 10 ガス封入用孔 11 プラグリテーナ 11a 突出部分 12 プラグ DESCRIPTION OF SYMBOLS 1 Housing 2 Metal bellows assembly 3 Liquid chamber 4 Gas chamber 5 Metal bellows 6 Cap member 6a Concave part 7 Valve 8 Flow path 8a Opening 10 Gas filling hole 11 Plug retainer 11a Projecting part 12 Plug
Claims (3)
を、外部回路に接続された液室と高圧気体を密封したガ
ス室とに分離するべく、一端が前記圧力容器に固定さ
れ、かつ他端がキャップ部材により閉塞された伸縮自在
な金属ベローズを有すると共に前記金属ベローズの前記
キャップ部材に前記外部回路に連通する流路の開口を閉
塞する弁体が設けられたアキュムレータであって、 前記キャップ部材が、その中心に絞り加工により形成さ
れた凹部を有し、 前記キャップ部材の外周縁が前記凹部を基準にして加工
され、かつ前記弁体が前記凹部を基準にして取り付けら
れていることを特徴とするアキュムレータ。1. One end is fixed to the pressure vessel so as to be received in the pressure vessel, and the inside of the pressure vessel is separated into a liquid chamber connected to an external circuit and a gas chamber sealed with high-pressure gas, and An accumulator provided with a valve body that has an elastic metal bellows whose other end is closed by a cap member and that closes an opening of a flow path communicating with the external circuit in the cap member of the metal bellows, The cap member has a concave portion formed by drawing at the center thereof, an outer peripheral edge of the cap member is processed based on the concave portion, and the valve body is attached based on the concave portion. The accumulator characterized by the above.
し、前記圧力容器と前記金属ベローズとの間が前記ガス
室をなし、 前記弁体が前記ガス室の前記キャップ部材の前記凹部と
相反する凸面に設けられていることを特徴とする請求項
1に記載のアキュムレータ。2. The interior of the metal bellows forms the liquid chamber, the space between the pressure vessel and the metal bellows forms the gas chamber, and the valve element is opposite to the recess of the cap member of the gas chamber. The accumulator according to claim 1, wherein the accumulator is provided on a convex surface.
を、外部回路に接続された液室と高圧気体を密封したガ
ス室とに分離するべく、一端が前記圧力容器に固定さ
れ、かつ他端がキャップ部材により閉塞された伸縮自在
な金属ベローズを有すると共に前記金属ベローズの前記
キャップ部材に前記外部回路に連通する流路の開口を閉
塞する弁体が設けられたアキュムレータの製造方法であ
って、 前記キャップ部材の中心に絞り加工により凹部を形成
し、 前記キャップ部材の外周縁を前記凹部を基準にして加工
し、かつ前記弁体を前記凹部を基準にして取り付けるこ
とを特徴とするアキュムレータの製造方法。3. One end is fixed to the pressure vessel so as to be received in the pressure vessel, and to separate the inside of the pressure vessel into a liquid chamber connected to an external circuit and a gas chamber sealed with high-pressure gas, and A method for manufacturing an accumulator, comprising: a telescopic metal bellows whose other end is closed by a cap member, and a valve body for closing the opening of a flow path communicating with the external circuit in the cap member of the metal bellows. An accumulator, wherein a concave portion is formed by drawing at the center of the cap member, an outer peripheral edge of the cap member is processed based on the concave portion, and the valve body is attached based on the concave portion. Manufacturing method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30056199A JP2001124001A (en) | 1999-10-22 | 1999-10-22 | Accumulator and manufacturing method therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30056199A JP2001124001A (en) | 1999-10-22 | 1999-10-22 | Accumulator and manufacturing method therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001124001A true JP2001124001A (en) | 2001-05-08 |
Family
ID=17886323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP30056199A Pending JP2001124001A (en) | 1999-10-22 | 1999-10-22 | Accumulator and manufacturing method therefor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2001124001A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7013923B2 (en) * | 2003-08-06 | 2006-03-21 | Advics Co., Ltd. | Metal bellows hydraulic accumulator |
WO2010066321A1 (en) * | 2008-12-09 | 2010-06-17 | Hydac Technology Gmbh | Hydraulic accumulator, in particular bellows accumulator |
KR101522984B1 (en) * | 2007-10-10 | 2015-05-26 | 이글 고우교 가부시기가이샤 | Accumulator |
-
1999
- 1999-10-22 JP JP30056199A patent/JP2001124001A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7013923B2 (en) * | 2003-08-06 | 2006-03-21 | Advics Co., Ltd. | Metal bellows hydraulic accumulator |
KR101522984B1 (en) * | 2007-10-10 | 2015-05-26 | 이글 고우교 가부시기가이샤 | Accumulator |
WO2010066321A1 (en) * | 2008-12-09 | 2010-06-17 | Hydac Technology Gmbh | Hydraulic accumulator, in particular bellows accumulator |
US8875740B2 (en) | 2008-12-09 | 2014-11-04 | Hydac Technology Gmbh | Hydraulic accumulator, in particular bellows accumulator |
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