JPS60220202A - Pressure accumulator - Google Patents
Pressure accumulatorInfo
- Publication number
- JPS60220202A JPS60220202A JP60064009A JP6400985A JPS60220202A JP S60220202 A JPS60220202 A JP S60220202A JP 60064009 A JP60064009 A JP 60064009A JP 6400985 A JP6400985 A JP 6400985A JP S60220202 A JPS60220202 A JP S60220202A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pressure accumulator
- valve member
- valve seat
- cylinder
- 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
- F15B1/24—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with rigid separating means, e.g. pistons
-
- 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
- F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
- F15B2201/312—Sealings therefor, e.g. piston rings
-
- 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
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/41—Liquid ports
- F15B2201/411—Liquid ports having valve means
-
- 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
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/415—Gas ports
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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、蓄圧器であって、蓄圧器接続孔な一端に有す
るシリンダおよびシリンダ内で移動可能な分離ぎストン
を備え、分離ピストンは、シリンダ内に形成されて蓄圧
器接続孔に接続された１つの圧力媒体室とシリンダによ
って包囲された１つのガス室とを分離しており、圧力媒
体室の完全な排出を阻止する弁が蓄圧器接続孔と分離ピ
ストンとの間に配置されていて、この弁はシリンダの蓄
圧器接続孔側の端部に配置された弁座およびこの弁座へ
向かって分離ピストンを介して移動可能な弁部材な有し
ている形式のものに関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a pressure accumulator comprising a cylinder having a pressure accumulator connection hole at one end and a separating piston movable within the cylinder. One pressure medium chamber formed in the pressure medium chamber and connected to the pressure accumulator connection hole is separated from one gas chamber surrounded by the cylinder, and a valve that prevents complete discharge of the pressure medium chamber is connected to the pressure accumulator connection hole. and a separating piston, the valve having a valve seat arranged at the end of the cylinder on the pressure accumulator connection hole side and a valve member movable towards the valve seat via the separating piston. Concerning the type of thing that is being done.
従来の技術
この種の蓄圧器がヨーロッパ特許第００３３５７１Ａ１
号明細書によって知られている。即ちこの蓄圧器の場合
、蓄圧器接続孔を一端に有するシリンダおよびシリンダ
内で移動可能な分離ピストンを備え、分離ピストンは、
シリンダ内に形成されて蓄圧器接続孔に接続された１つ
の圧力媒体室とこの圧力媒体室の１−（１１１１に形成
されてがスクッションを受容している１つのガス室とを
分離しており、圧力媒体室と蓄圧器接続孔との間には１
つの弁が配置さＪｌている。この弁は、圧力媒体室の媒
体保有量が所定の最小匿まで減少した際、即ち、例えば
蓄圧器充てんポンプのしゃ断および圧力媒体消費１ｕの
増大によって牛する保有量の減少の際に、蓄圧器接続孔
を閉ざす。これによって分離ピストンの下ｆｉｌに一定
限の圧力媒体が残され、この圧力媒体に５Ｌつて分離ピ
ストンシール部材に沿って生ずるガス損失が減少される
。例えば蓄圧器充てんポンプの接続によって蓄圧器接続
孔における圧力が１昇ずろと、弁が先ず最初チェック井
の形式で開き、。Prior Art This type of pressure accumulator is disclosed in European Patent No. 0033571A1.
It is known by the specification no. That is, this pressure accumulator includes a cylinder having a pressure accumulator connection hole at one end and a separation piston movable within the cylinder, the separation piston having:
One pressure medium chamber formed in the cylinder and connected to the pressure accumulator connection hole is separated from one gas chamber formed at 1-(1111) of this pressure medium chamber and receiving a scushion. 1 between the pressure medium chamber and the pressure accumulator connection hole.
Two valves are located Jl. This valve is activated when the medium capacity of the pressure medium chamber is reduced to a predetermined minimum value, i.e. by switching off the pressure medium filling pump and increasing the pressure medium consumption 1u. Close the connection hole. This leaves a certain amount of pressure medium in the lower fil of the separation piston, which reduces the gas losses occurring along the separation piston seal by 5L. If, for example, the pressure in the accumulator connection hole increases by 1 by connecting the accumulator filling pump, the valve first opens in the form of a check well.
その結果圧力媒体室には−Ｉ−昇ｌ〜だ圧力が支配し、
分離ピストンは弁座から離」する。分離ピストンの−に
昇に伴って弁は完全に開く。公知例のこの弁は中空円筒
形の弁座およびこの弁座内にステムな介して進入可能な
ゴム弾性の弁部材を有しており、この弁部材は１つのス
リーブパツキンの形に構成さＪｌていて、弁座に沿って
案内されており、そのシールリップが分離ピストンへの
方向へ向けられている。As a result, the pressure in the pressure medium chamber is dominant,
The separation piston moves away from the valve seat. As the separation piston rises to -, the valve opens completely. This known valve has a hollow cylindrical valve seat and a rubber-elastic valve member which can be inserted into the valve seat via a stem, the valve member being constructed in the form of a sleeve seal. and is guided along the valve seat with its sealing lip directed towards the separating piston.
このような弁は次のような難点を有している。Such valves have the following drawbacks.
即ち、ゴム弾性的なスリーブパツキンが弁座内へひんば
んに入り込んだり出たりするのに伴って摩ＪｉＥ ｔ−
てシール作用を欠くことになり、従って蓄圧器充てんポ
ンプのしゃ断接にも圧力媒体室から圧力媒体が閉ざされ
た弁を通過して漏出する。このことは、最終的にガスが
ガスクッションからシリンダと分離ピストンとの間を通
過（−１て漏出するという難点につながる。しかもガス
の漏出は蓄積可能なエネルギの量を減少させる５、
本発明が解決しようとする課題
本発明は、公知例にみられる弁部材の摩耗、ひいては非
耐密性を避けろことを課題とする。That is, as the rubber-elastic sleeve packing slowly moves in and out of the valve seat, it causes friction.
Therefore, even when the accumulator filling pump is switched off, pressure medium leaks out of the pressure medium chamber through the closed valve. This ultimately leads to the difficulty that gas leaks from the gas cushion through the passage between the cylinder and the separation piston.Moreover, leakage of gas reduces the amount of energy that can be stored5. SUMMARY OF THE INVENTION An object of the present invention is to avoid the wear of the valve member and the non-sealing properties seen in known examples.
課題を゛解決するための手段
このような課題を本発明は冒頭に述べた形式の蓄圧器に
おいて次のようにして解決した。即ち、弁が座付き弁と
して構成されていて、その弁座は分離ピストンによって
移動可能な弁部材のための軸方向ストッパをなしており
、分離ピストンの所定位置で弁座に接触するｒ＋ｆ動の
弁部材は、弁座の−Ｉ−流側で弁部材に作用ずろ圧力媒
体によって、分離ピストンの移動な１７に弁座から開放
方向へ離脱ｒ＋）能であるように【７たのである。Means for Solving the Problems The present invention has solved the above problems in the pressure accumulator of the type mentioned at the beginning as follows. That is, the valve is configured as a seated valve, the valve seat of which forms an axial stop for a valve member movable by a separating piston, and the r+f-actuated valve contacts the valve seat at a predetermined position of the separating piston. The member is such that it can be removed from the valve seat in the opening direction upon movement of the separating piston by means of a pressure medium acting on the valve member on the -I- flow side of the valve seat.
作用および利点
公知例の場合に弁の閉鎖の際中空円筒形の弁座内へスリ
ーブ状のゴム弾性的な弁部材が嵌まり込むのに対して、
本発明の蓄圧器にお（・ては、弁部材はそのストッパと
して働く弁座へ圧着されるだけで弁座との間にしゆ５動
摩擦な生じない。Operation and Advantages In contrast to the known case in which a sleeve-shaped elastomeric valve member fits into a hollow cylindrical valve seat when the valve is closed,
In the pressure accumulator of the present invention, the valve member is only pressed against the valve seat, which serves as a stopper, and no dynamic friction occurs between the valve member and the valve seat.
このようにして耐密性を欠くことになるような弁部材の
摩耗が避けられろ。構造的に極めて簡単なこの弁部材は
蓄圧器のあたえられた耐用期間中申し分なく蓄圧能力な
保ったままである。In this way, wear of the valve member which would result in a loss of tightness is avoided. This valve member, which is extremely simple in construction, remains satisfactorily capable of accumulating pressure during the given service life of the pressure accumulator.
分離ピストンとの協働により圧力媒体の充てんも迅速に
行なえる。In cooperation with the separating piston, filling with pressure medium can also be carried out quickly.
実施態様項第４項の構成は、弁の耐密性を確実にすると
共にスペースを節減した安価な構造を可能にする点で特
に有利である。実施態様項第５項の構成もまた弁の耐密
性を保証する。The configuration of embodiment item 4 is particularly advantageous in that it ensures the tightness of the valve and allows for an inexpensive construction that saves space. The configuration of embodiment item 5 also ensures the tightness of the valve.
実施例
次に図面に示した実施例に従って本発明を詳述する：
蓄圧器２はシリンダ３．蓄圧器接続片４１分離ピストン
５．弁６かも成っている。シリンダ３は一方の端部７に
端壁８を有しており、他方の端部９内へ蓄圧器接続片４
が装着されている。EMBODIMENTS The invention will now be explained in more detail according to the embodiments shown in the drawings: The pressure accumulator 2 is connected to a cylinder 3. Pressure accumulator connection piece 41 separation piston 5. It also consists of valve 6. The cylinder 3 has an end wall 8 at one end 7 and an accumulator connection piece 4 into the other end 9.
is installed.
この蓄圧器接新片４の外聞面は円筒形であって１つの周
みぞ１０を有している。この固みぞ１０にはシールリン
グ１１が挿入されており、このシールリング１１は蓄圧
器接続片４に対してシリンダ３な気密にシールしている
。端部９の内面にも１つの周みぞ１２が形成されている
。この周みぞ１２には線材リング１３が挿入されており
、この線材リング１３は、シリンダ３内に圧力が支配し
次第蓄圧器接続片４を支える。蓄圧器接続片４はその縦
軸線に沿って１つの孔１４を有しており、この孔１４は
シリンダ３へ通じていて蓄圧器接続孔をなしている。こ
の蓄圧器接続孔１４の外力端には拡大部１５が形成され
ている。この拡大部１５に接してシリンダ３の端部９よ
りもｆｉ、 （ｔｉｌｌに位置する固定部１６が蓄圧器
接続片４から突出して設（１らねている。拡大部１５に
はシールリング１７が挿入されている。The outer surface of this pressure accumulator contact piece 4 is cylindrical and has one circumferential groove 10. A sealing ring 11 is inserted into this hard groove 10, and this sealing ring 11 provides an airtight seal to the cylinder 3 with respect to the pressure accumulator connection piece 4. A circumferential groove 12 is also formed on the inner surface of the end portion 9. A wire ring 13 is inserted into this circumferential groove 12, which supports the accumulator connection piece 4 as soon as pressure prevails in the cylinder 3. The accumulator connection piece 4 has a bore 14 along its longitudinal axis, which opens into the cylinder 3 and forms an accumulator connection bore. An enlarged portion 15 is formed at the external force end of the pressure accumulator connection hole 14 . A fixing part 16 located in contact with this enlarged part 15 and located at fi and (till) from the end 9 of the cylinder 3 is provided to protrude from the pressure accumulator connection piece 4.The enlarged part 15 has a seal ring 17 is inserted.
固定部１６には複数のねじ穴１８が形成されている。A plurality of screw holes 18 are formed in the fixing portion 16.
分離ピストン５は１つの周みぞ１９を有しており、この
周みぞ１９にはシールリング２０が挿入されている。シ
ールリング２０は、分離ピストン５の１こ側のガス室２
１を分離ピストン５の下側の圧力媒体室２２に対ｌ〜て
シールする。The separating piston 5 has a circumferential groove 19 into which a sealing ring 20 is inserted. The seal ring 20 is attached to the gas chamber 2 on one side of the separation piston 5.
1 is sealed against the pressure medium chamber 22 on the underside of the separating piston 5.
固定部１６とは反対側の端部２３は分離ピストン５用の
軸方向ストッパをなす。The end 23 opposite the fixing part 16 forms an axial stop for the separating piston 5.
弁６は、蓄圧器接続孔１４から端面２３への移行部内に
位置する１つの弁座２４と、はぼ円すい形の弁部材２５
とから成っており、この弁部材２５には升ステム２６が
結合されている。The valve 6 has a valve seat 24 located in the transition from the pressure accumulator connection hole 14 to the end face 23 and a substantially conical valve member 25
A square stem 26 is connected to the valve member 25.
弁ステム２６には１つのばね受２７が固定されている。One spring receiver 27 is fixed to the valve stem 26 .
このばね受２７は分離ピストン５の軸方向に形成された
円筒形のばね室２８内において１つの弁閉鎖ばね２９に
抗して移動可能である。図示の実施例の場合分離ピスト
ン５は端面２３に面して１つのリング面５ａを有してい
る。This spring support 27 is movable in a cylindrical spring chamber 28 formed in the axial direction of the separating piston 5 against a valve closing spring 29 . In the embodiment shown, the separating piston 5 has an annular surface 5a facing the end face 23.
弁部材２５はこの分離ピストン５のリング面５ａかも突
出している。The valve member 25 also projects from the ring surface 5a of the separation piston 5.
蓄圧器２の組立て後に、端壁８の図示してない開口部か
らがス室２１内へ例えば窒素のようなガスが充てんされ
る。このガスは周知の通り分離ピストン５を軸方向スト
ッパ２３へ向かって動かすように働く１つのガスクッシ
ョンを形成する。弁閉鎖ばね２９は次のように構成され
ている。即ち、分離ピストン５が所定の間隔な残して軸
方向ストッパ２３へ接近した時に、ばね受２７および弁
ステム２６を介して弁部拐２５を所定の力で弁座２４に
圧着するように構成されている。この場合弁閉鎖ばね２
９の巻き条は相互に最小間隔を保ったままである。例え
ば自動車のブレーキ装置のような油圧装置が作動した場
合、その蓄圧器充てんポンプが圧力を生じ、この圧力は
弁部材２５を弁閉鎖ばね２９の作用に抗して弁座２４か
ら浮き−Ｉ―がらせる。これによって液体状の圧力媒体
が圧力媒体室２２内へ流入し、分離ピストン５を端！１
Ｂへ向かってガスクッションに抗して押す。分離ピス
トン５がわずかに動き次第、連行突起３０がばね受２７
の下へ当たり、弁部材２５を最終的に弁座２４かも完全
に離し、これによって蓄圧器の充てんが加速される。蓄
圧器充てんポンプのしゃ断接に圧力媒体が蓄圧器接続孔
１４から放出されると、ガスクッションが分離ピストン
５を軸方向ストッパ２３へ向かって押す。これによって
弁部材２５は弁座２４に当たって蓄圧器接続孔１４を封
鎖する。弁座２４お」：び弁部材２５は例えば金属材料
又は金属材料と比肩し得る耐摩耗性を有する材料から製
作される。弁６は大きな耐用寿命な有し、確実に圧力媒
体室２２なシールする。シール性に関してはさらに、弁
座２４が分離ピストン５の直径の１０％から２０％まで
の値の直径な有しているならば有利である。これによっ
て圧力媒体室２２と蓄圧器接紗孔１４との間の比較的大
きな圧力降下を長期にわたって保つことが可能である。After the pressure accumulator 2 is assembled, the gas chamber 21 is filled with a gas such as nitrogen through an opening (not shown) in the end wall 8. This gas forms a gas cushion which serves to move the separation piston 5 towards the axial stop 23 in a known manner. The valve closing spring 29 is constructed as follows. That is, when the separation piston 5 approaches the axial stopper 23 leaving a predetermined distance, the valve part 25 is pressed against the valve seat 24 with a predetermined force via the spring receiver 27 and the valve stem 26. ing. In this case, the valve closing spring 2
The 9 turns remain at a minimum distance from each other. When a hydraulic system, such as the brake system of a motor vehicle, is actuated, its accumulator filling pump generates a pressure that lifts the valve member 25 away from the valve seat 24 against the action of the valve closing spring 29. make you angry As a result, the liquid pressure medium flows into the pressure medium chamber 22 and pushes the separating piston 5 to the end! 1
Push toward B against the gas cushion. As soon as the separation piston 5 moves slightly, the entraining protrusion 30 engages the spring receiver 27.
The valve member 25 finally leaves the valve seat 24 completely, thereby accelerating the filling of the pressure accumulator. When the pressure medium is discharged from the pressure accumulator connection hole 14 upon switching off and on of the pressure accumulator filling pump, the gas cushion pushes the separating piston 5 towards the axial stop 23 . As a result, the valve member 25 hits the valve seat 24 and closes the pressure accumulator connection hole 14. The valve seat 24 and the valve member 25 are made, for example, from a metal material or a material with a wear resistance comparable to that of a metal material. The valve 6 has a long service life and reliably seals the pressure medium chamber 22. With regard to sealing properties, it is furthermore advantageous if the valve seat 24 has a diameter of 10% to 20% of the diameter of the separating piston 5. This makes it possible to maintain a relatively large pressure drop between the pressure medium chamber 22 and the pressure accumulator gauging hole 14 over a long period of time.
弁６を経て蓄圧器接続孔１４内へ圧力媒体が流出するよ
うなことも叱正される。このことは、圧力媒体室２２の
内部にガス室内の圧力とほぼ等しい圧力な受けて最小量
の液体状圧力媒体が残存するという利点をもたらす。そ
の結果ガスはガス室内に封入されたままとなり、蓄圧器
２の蓄圧能力も保たれる。A leakage of pressure medium through the valve 6 into the pressure accumulator connection hole 14 is also prevented. This has the advantage that a minimum amount of liquid pressure medium remains inside the pressure medium chamber 22 at a pressure approximately equal to the pressure in the gas chamber. As a result, the gas remains sealed in the gas chamber, and the pressure accumulating capacity of the pressure accumulator 2 is also maintained.
図示の弁部材はほぼ円すい形を呈しているが、球面形で
あってもよい。例えば、弁座２．４をホッパ形に形成し
てもよく、このことは円すい形の弁部材２５と共に確実
なシールを保証する。Although the illustrated valve member has a generally conical shape, it may also have a spherical shape. For example, the valve seat 2.4 may be hopper-shaped, which together with the conical valve member 25 ensures a reliable seal.
（１１） 弁部材として球を組み付けてもよい。(11) A ball may be assembled as the valve member.
このような構成によれば、個個の構造部品の製作上の不
精密によって弁座２４とばね室２８もｌ、 ＜は連行突
起３０との整列の狂いがあるような場合にもシール性が
保Ｋｌｌされる。With this configuration, even if the valve seat 24 and the spring chamber 28 are misaligned with the driving protrusion 30 due to manufacturing inaccuracies in the individual structural parts, the sealing performance can be maintained. It will be protected.
以上述べたように、本発明の場合弁６の特徴は、弁部材
２５がそのストッパとして動く弁座２４へ当て付けられ
て弁閉鎖ばね２９によって圧着されるという点にある。As described above, a feature of the valve 6 according to the present invention is that the valve member 25 is pressed against the valve seat 24 which acts as a stopper and is pressed by the valve closing spring 29.
このようにして所要のシール性が得られる。これに対し
て公知の弁の場合、いわばびんのくび内におけるコルク
栓のように円筒孔内ヘスリーブパラギンが押し込まれる
のであり、このことは摩耗を伴う結果シール不全につな
がる。In this way, the required sealing properties are obtained. In the case of known valves, on the other hand, the sleeve paragine is forced into the cylindrical bore, so to speak, like a cork in the neck of a bottle, which leads to abrasion and a seal failure.
図面は本発明による蓄圧器の実施例を示す縦断面図であ
る。
２・・・蓄圧器、３・・・シリンダ、４・・・蓄圧器接
紗片、５・・・分離ピストン、６・・弁、８・・・端壁
、１０・・・周みぞ、１１・・シールリング、１２・・
・闇（１２）
みぞ、１３・・・線材リング、１４・・孔、１５・・拡
大部、１６・・固定面、１７・・・シールリング、１８
・・・ねじ穴、１９・・・周みぞ、２０・・・シールリ
ング、２１・・ガス室、２２・・圧力媒体室、２３・・
・端面、２４・・・弁座、２５・・・弁部材、２６・・
・弁ステム、２７・・・ばね受、２８・・・ばね室、２
９・・・弁閉鎖はね、３０・・・連行突起。
（ほか１名）The drawing is a longitudinal sectional view showing an embodiment of the pressure accumulator according to the present invention. 2... Pressure accumulator, 3... Cylinder, 4... Pressure accumulator gauze, 5... Separation piston, 6... Valve, 8... End wall, 10... Circumferential groove, 11・・Seal ring, 12・・
・Darkness (12) Groove, 13... Wire ring, 14... Hole, 15... Enlarged part, 16... Fixed surface, 17... Seal ring, 18
... Screw hole, 19 ... Circumferential groove, 20 ... Seal ring, 21 ... Gas chamber, 22 ... Pressure medium chamber, 23 ...
・End face, 24... Valve seat, 25... Valve member, 26...
・Valve stem, 27... Spring receiver, 28... Spring chamber, 2
9... Valve closing spring, 30... Entraining protrusion. (1 other person)
Claims (1)
ンダおよびシリンダ内で移動可能な分離ピストンを備え
、分離ピストンは、シリンダ内に形成されて蓄圧器接絣
孔に接続された１つの圧力媒体室とシリンダによって包
囲された１つのガス室とを分離しており、圧力媒体室の
完全な排出を阻止する弁が蓄圧器接縦孔と分離ピストン
との間に配置されていて、この弁はシリンダの蓄圧器接
続孔側の端部に配置された弁座およびこの弁座へ向かっ
て分離ピストンを介して移動可能な弁部材を有している
形式のものにおいて、弁（６）が座付き弁として構成さ
れていて、その弁座（２４）は分離ピストン（５）によ
って移動可能な弁部材（２５）のための軸方向ストッパ
をなしており、分離ピストン（５）の所定位置で弁座（
２４）に接触する可動の弁部材（２５）は、弁座（２４
）の１−流側で弁部材（２５）に作用する圧力媒体によ
って、分離ピストン（５）の移動なしに弁座（２４）か
ら開放方向へ離脱可能であることな特徴とする、蓄１−
Ｆ器 ２ 弁部材（２５）が分離ピストン（５）に支えられる
弁閉鎖ばね（２９）に抗ｌ〜て分離ピストン（５）に対
して相ス・ｊ的に可動である、特許請求の範囲第１項に
記載の蓄圧器 ろ 弁部材（２５）がステム（２６）に固定されていて
、このステム（２６）を介１．て分ｔｌｔピストン（５
）によって弁座（２４）から離脱可能である、特許請求
の範囲第１項又は第２項に記載の蓄圧器 ４、 弁座（２４）の１Ｍ径が、分離ピストン（５）の
直径の１０％から２０％の値である、特許請求の範囲第
１項から第６頂までのいずれか１項に記載の蓄圧器 ５ 弁部材（２５）がほぼ円すい形をなしている、特許
請求の範囲第４項に記載の蓄圧器[Claims] 1. A pressure accumulator, comprising a cylinder having a pressure accumulator connecting hole at one end and a separation piston movable within the cylinder, the separation piston being formed in the cylinder and having a pressure accumulator connecting hole. A pressure medium chamber connected to the cylinder and a gas chamber surrounded by the cylinder are separated, and a valve preventing complete evacuation of the pressure medium chamber is provided between the pressure accumulator vertical hole and the separating piston. The valve is of the type having a valve seat arranged at the end of the cylinder facing the pressure accumulator connection and a valve member movable towards this valve seat via a separating piston. , the valve (6) is constructed as a seated valve, the valve seat (24) of which forms an axial stop for a valve member (25) movable by the separating piston (5). ) in the specified position of the valve seat (
The movable valve member (25) in contact with the valve seat (24)
) is characterized in that it can be removed from the valve seat (24) in the opening direction without movement of the separating piston (5) by means of a pressure medium acting on the valve member (25) on the flow side of the valve member (25).
F device 2. Claims in which the valve member (25) is movable in phase with respect to the separating piston (5) against a valve closing spring (29) supported by the separating piston (5). The pressure accumulator filter according to item 1, wherein the valve member (25) is fixed to the stem (26), and the valve member (25) is connected to the stem (26) through the valve member (25). minute tlt piston (5
), the pressure accumulator 4 according to claim 1 or 2 is removable from the valve seat (24) by means of a 1M diameter of the valve seat (24) that is 10 times the diameter of the separating piston (5). % to 20%, the pressure accumulator 5 according to any one of claims 1 to 6, wherein the valve member (25) has a substantially conical shape. Pressure accumulator described in paragraph 4
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3411803.9 | 1984-03-30 | ||
| DE3411803 | 1984-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60220202A true JPS60220202A (en) | 1985-11-02 |
Family
ID=6232091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60064009A Pending JPS60220202A (en) | 1984-03-30 | 1985-03-29 | Pressure accumulator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS60220202A (en) |
| GB (1) | GB2156435B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5638868A (en) * | 1996-06-05 | 1997-06-17 | Valcor Engineering | Accumulator |
| CN101929480B (en) * | 2009-06-25 | 2012-07-18 | 群积企业有限公司 | Floating ball sliding sleeve device of energy accumulator |
| FR3001774B1 (en) * | 2013-02-04 | 2015-03-13 | Vianney Rabhi | HYDRAULIC PUMP MOTOR WITH FIXED OR VARIABLE CYLINDREE |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56124701A (en) * | 1980-02-04 | 1981-09-30 | Wegscheider Gustav | Hydraulic air accumulator |
| JPS6018601A (en) * | 1983-05-06 | 1985-01-30 | カ−ル・ア−ル・ミルズ | Pressure acumulator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB755342A (en) * | 1954-03-12 | 1956-08-22 | Keelavite Co Ltd | Improvements in or relating to free piston hydraulic accumulators |
-
1985
- 1985-03-22 GB GB08507501A patent/GB2156435B/en not_active Expired
- 1985-03-29 JP JP60064009A patent/JPS60220202A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56124701A (en) * | 1980-02-04 | 1981-09-30 | Wegscheider Gustav | Hydraulic air accumulator |
| JPS6018601A (en) * | 1983-05-06 | 1985-01-30 | カ−ル・ア−ル・ミルズ | Pressure acumulator |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2156435A (en) | 1985-10-09 |
| GB8507501D0 (en) | 1985-05-01 |
| GB2156435B (en) | 1987-09-03 |
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