EP1086312B1 - Kolbenspeicher für einem verbraucher in einer hydraulikanlage zuzuführendes druckfluid - Google Patents
Kolbenspeicher für einem verbraucher in einer hydraulikanlage zuzuführendes druckfluid Download PDFInfo
- Publication number
- EP1086312B1 EP1086312B1 EP99927842A EP99927842A EP1086312B1 EP 1086312 B1 EP1086312 B1 EP 1086312B1 EP 99927842 A EP99927842 A EP 99927842A EP 99927842 A EP99927842 A EP 99927842A EP 1086312 B1 EP1086312 B1 EP 1086312B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- tappet
- cylinder
- control valve
- type accumulator
- 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 - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D7/00—Hopper cars
- B61D7/14—Adaptations of hopper elements to railways
- B61D7/16—Closure elements for discharge openings
- B61D7/24—Opening or closing means
- B61D7/28—Opening or closing means hydraulic or pneumatic
-
- 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
- F15B1/027—Installations or systems with accumulators having accumulator charging devices
-
- 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
-
- 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
- F15B2201/4155—Gas ports having valve means
Definitions
- the invention relates to a piston accumulator for a consumer in one Hydraulic system pressure fluid to be supplied, in particular for hydraulic Actuation of the unloading device with not self-propelled Vehicles for bulk goods, with one flying in a cylinder, dividing the cylinder into an oil space and a gas space Piston, connections provided on the oil space for supply of the charging fluid flow and discharge of the working fluid flow, one axially in the cylinder movable shift plunger, which with its inner end with the piston cooperates and with its outer end in the gas space delimiting Cylinder cover is guided, and with a shutdown device for the switching fluid serving the charging fluid flow, which via a switchable Bypassing the bypass pipeline serving with the piston accumulator the connection for the charging fluid flow connected to the oil space and through the outer end of the switching plunger is actuated, which is sealed by the Cylinder cover led outwards and on the outside of the cylinder as Actuator for the switching valve is accessible, which one at the The outside of the cylinder cover forms a detachably
- a piston accumulator of this type is known, which for Operation of the bulk material unloading device provided for railway wagons is.
- the hydraulic system provided in such wagons has at least one hydraulic pump driven by a relevant wheel set on a charging fluid flow during the movement of the wagon pumps into the piston accumulator If the set operating pressure in the When memory reaches, the shutdown device causes the charging fluid flow via the bypass pipeline to the tank connection of the hydraulic system is diverted and thus flows into the fluid reservoir.
- the invention has for its object a piston accumulator of said To create kind that stands out in a compact design by a special distinguishes good operating behavior.
- This inner guidance opens up the possibility of defining the gas space Form part of the cylinder in a considerable length, which is achieved that the volume of the gas space within the piston accumulator very large compared to the piston displacement in the oil chamber can be.
- This has the particular advantage that it covers the entire area Working stroke of the piston resulting pressure difference despite compact design the memory remains relatively small, which for the safe Operation of the hydraulic system in question, i.e. in the special case of the bulk material unloading device, is particularly cheap.
- the cylinder of a piston accumulator is designated by 1, the interior of which is divided into an oil chamber 5 and a gas chamber 7 by an overhung separating piston 3.
- Fig. 2 shows the piston 3 in its end position against the cylinder base 9, which corresponds to the operating state in which the oil chamber 5 is not charged by a supplied charging fluid flow, the volume of the oil chamber 5 under the influence of the compressed gas in the gas chamber 7 (at Embodiment N 2 ) is therefore practically reduced to zero by moving the piston 3.
- the cylinder base 9 For the supply of the charging fluid flow to the oil space 5, the cylinder base 9 a port 11 to which the pressure fluid from the associated Hydraulic pump 13 can be fed via a check valve 15.
- a second Connection 17 on the cylinder base 9 enables the working fluid flow to be removed via a check valve 19 to the consumer concerned, i.e. in the special case mentioned to the working cylinder of the assigned Bulk unloading.
- One on the check valve 15 with the Connection 11 on the oil chamber 5 connecting bypass pipeline 21 forms a bridging of the piston accumulator for the charging fluid stream and forms in cooperation with one with the pipeline 21 connected, interacting with the check valve 69
- Switching valve 23 a switch-off device for the charging fluid flow.
- a switching plunger 25 is in the form of an actuator for the switching valve 23 a relatively long round rod in the cylinder 1 axially displaceable.
- the Switch plunger 25 is by the spring force of a spring assembly, which at embodiment shown by a plate spring assembly 33 (see in particular Fig. 3) is formed for its advanced against the separating piston 3 Biased end position, which is shown in Fig. 2, in which the Switch plunger 25 with its relevant end 35 via the partition 29 protrudes by a distance that the actuating path of the actuator 37 of the switching valve 23 is adapted.
- the partition 29 forms a mechanical one Stop for limiting the flow of fluid through the charge effected lifting movement of the separating piston 3, which is in contact with the Partition 29 in cooperation with the end 35 of the switching plunger 25 this against the spring force of the plate spring assembly 33 for actuating the Switching valve 23 moves (in Fig. 2 to the right).
- the partition extends 29 opposite, outer end of the switching plunger 25 by a closure of the gas space 7 screwed into the relevant end of the cylinder 1 Cylinder cover 39 through, with a set of seals 41 for Formation of a seal against the bore 45 of the cylinder cover 39 cooperates with a tapered section 43 of the switching plunger 25.
- This tapered section 43 extends through a dirt deflector 47 into an extension 49 of the bore 45 into which the Switch plunger 25 to form a shoulder surface 51 in a diameter passes even further tapered, end-side shaft portion 53.
- the extension 49 takes the plate spring assembly 33 surrounding the shaft part 53 on the one hand on the shoulder surface 51 of the switching plunger 25 and on the other hand, in an internal thread 55 of the bore extension 49 screwed threaded sleeve 57 supports.
- Fig. 2 filling valve can be seen for the supply of the compressed gas to the gas space 7 designated 59.
- the end of the shaft part forms 53 of the switching plunger 25, a coupling member 61 for the articulated connection with the actuator 37 of the switching valve 23.
- a commercial directional control valve of the slide type which as removable unit can be unscrewed directly from a base plate 72 is that via a holding frame 63 and a screw 65 with the Cylinder cover 30 is connected.
- the bypass pipeline 21 with the switching valve 23 connected which when actuated, i.e. when the switching plunger 23 Actuator 37 moves against the acting spring force (in the drawing to the right), the charge pressure of the oil space prevailing in the pipeline 21 5 connects to a control line 67.
- the Control line 67 becomes hydraulic connected to it unlockable check valve 69 unlocked.
- the check valve 69 is like this switched that it is in the unlocked state upstream of it
- Throttle 70 provides fluid communication from the bypass pipe 21 to the Tank connection 71 releases.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Fluid-Pressure Circuits (AREA)
- Valve Device For Special Equipments (AREA)
Description
- Fig. 1
- eine schematisierte Blockdarstellung des Kolbenspeichers mit zugehöriger hydraulischer Schaltung;
- Fig. 2
- einen Längsschnitt des Kolbenspeichers und
- Fig. 3
- einen gegenüber Fig. 2 in größerem Maßstab gezeichneten Teillängsschnitt, in dem ein Teil des Zylinderdeckels mit zugehörigen Komponenten gezeigt ist.
Claims (7)
- Kolbenspeicher für einem Verbraucher in einer Hydraulikanlage zuzuführendes Druckfluid, insbesondere zur hydraulischen Betätigung der Entladeeinrichtung bei nicht mit Eigenantrieb versehenen Fahrzeugen für Schüttgüter, mit einem in einem Zylinder (1) fliegend angeordneten, den Zylinder in einen Ölraum (5) und einen Gasraum (7) unterteilenden Kolben (3), am Ölraum (5) vorgesehenen Anschlüssen (11 bzw. 17) für Zufuhr des Lade-Fluidstromes und Abfuhr des Arbeits-Fluidstromes, einem im Zylinder (1) axial beweglichen Schaltstößel (25), der mit seinem inneren Ende (35) mit dem Kolben (3) zusammenwirkt und mit seinem äußeren Ende im den Gasraum (7) begrenzenden Zylinderdeckel (39) geführt ist, und mit einem als Abschalteinrichtung für den Lade-Fluidstrom dienenden Schaltventil (23), das über eine als schaltbare Überbrückung des Kolbenspeichers dienende Umgehungs-Rohrleitung (21) mit dem Anschluß (11) für den Lade-Fluidstrom am Ölraum (5) verbunden und durch das äußere Ende des Schaltstößels (25) betätigbar ist, das unter Abdichtung durch den Zylinderdeckel (39) nach außen geführt und an der Außenseite des Zylinders (1) als Betätigungsglied für das Schaltventil (23) zugänglich ist, welches eine an der Außenseite des Zylinderdeckels (39) abnehmbar anbringbare Baueinheit bildet, dadurch gekennzeichnet, daß der Schaltstößel (25) an seinem für die Zusammenwirkung mit dem Kolben (3) vorgesehenen inneren Ende (35) in einer im Gasraum (7) befindlichen, an der Innenwand des Zylinders (1) befestigten Traverse (29) längsverschiebbar geführt ist.
- Kolbenspeicher nach Anspruch 1, dadurch gekennzeichnet, daß die Traverse in Form einer Trennwand (29) mit zumindest einem Gasdurchlaß (31) ausgebildet ist, die einen die Bewegung des Kolbens (3) begrenzenden Anschlag bildet, über den das Ende (35) des Schaltstößels (25) bei vom Anschlag entfernter Stellung des Kolbens (3) um eine der Länge des Betätigungsweges des Schaltventils (23) entsprechende Strecke unter Einwirkung einer vorspannenden Federkraft vorsteht, so daß der Schaltstößel (25) bei Anlaufen des Kolbens (3) am Anschlag gegen die Federkraft zur Betätigung des Schaltventils (23) verschiebbar ist.
- Kolbenspeicher nach Anspruch 2, dadurch gekennzeichnet, daß zur Erzeugung der Federkraft ein Tellerfederpaket (33) vorgesehen ist, das in einer endseitigen Erweiterung (49) der für den Durchtritt des Schaltstößels (25) im Zylinderdeckel (39) befindlichen Bohrung (45) aufgenommen ist.
- Kolbenspeicher nach Anspruch 3, dadurch gekennzeichnet, daß der Schaltstößel (25) am äußeren Ende zur Bildung einer Schulterfläche (51) einen verjüngten, endseitigen Schaftteil (53) besitzt, der sich in der endseitigen Erweiterung (49) der Bohrung (45) des Zylinderdekkels (39) durch das Tellerpaket (33) hindurch erstreckt, das sich einerseits an der Schulterfläche (51) des Schaltstößels (25) und andererseits an einer in die Erweiterung (49) der Bohrung (45) des Zylinderdeckels (39) einschraubbaren Gewindehülse (57) abstützt.
- Kolbenspeicher nach Anspruch 4, dadurch gekennzeichnet, daß das als Betätigungsglied des Schaltventils dienende Ende des Schaltstößels (25) ein Kupplungsglied (61) für die Verbindung mit dem beweglichen Stellglied (37) des am Zylinderdeckel (39) anbringbaren Schaltventils (23) aufweist.
- Kolbenspeicher nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß als Schaltventil ein handelsübliches Wegeventil (23) vorgesehen ist.
- Kolbenspeicher nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß für die Bildung einer die Abschaltung des Lade-Fluidstromes bewirkenden Fluidverbindung zwischen der Umgehungs-Rohrleitung (21) und dem Tankanschluß (71) der Hydraulikanlage ein mittels des Schaltventils hydraulisch entsperrbares Rückschlagventil (69) mit diesem vorgeschalteter Drossel (70) vorgesehen ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19827363 | 1998-06-19 | ||
DE19827363A DE19827363A1 (de) | 1998-06-19 | 1998-06-19 | Kolbenspeicher für einem Verbraucher in einer Hydraulikanlage zuzuführendes Druckfluid |
PCT/EP1999/003816 WO1999067536A1 (de) | 1998-06-19 | 1999-06-02 | Kolbenspeicher für einem verbraucher in einer hydraulikanlage zuzuführendes druckfluid |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1086312A1 EP1086312A1 (de) | 2001-03-28 |
EP1086312B1 true EP1086312B1 (de) | 2003-05-21 |
Family
ID=7871409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99927842A Expired - Lifetime EP1086312B1 (de) | 1998-06-19 | 1999-06-02 | Kolbenspeicher für einem verbraucher in einer hydraulikanlage zuzuführendes druckfluid |
Country Status (9)
Country | Link |
---|---|
US (1) | US6332477B1 (de) |
EP (1) | EP1086312B1 (de) |
JP (1) | JP2002519590A (de) |
AT (1) | ATE241087T1 (de) |
DE (2) | DE19827363A1 (de) |
DK (1) | DK1086312T3 (de) |
ES (1) | ES2200523T3 (de) |
PT (1) | PT1086312E (de) |
WO (1) | WO1999067536A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101435450B (zh) * | 2007-11-13 | 2011-09-07 | 中国国际海运集装箱(集团)股份有限公司 | 液压单元、脚轮组件、及集装箱移动装置和方法 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10244705B3 (de) * | 2002-09-24 | 2004-01-08 | Gesellschaft für technische Entwicklungen mbH | Vorrichtung zum Reduzieren und Vergleichmäßigen des Drucks eines viskosen Mediums |
US8695643B2 (en) * | 2007-11-08 | 2014-04-15 | Parker-Hannifin Corporation | Lightweight high pressure repairable piston composite accumulator with slip flange |
US7984731B2 (en) | 2007-11-13 | 2011-07-26 | Parker-Hannifin Corporation | Lightweight high pressure repairable piston tie rod composite accumulator |
US9127661B2 (en) | 2010-10-25 | 2015-09-08 | Hamilton Sundstrand Corporation | Bootstrap accumulator system with telescoping actuator cylinder |
ITBO20120233A1 (it) * | 2012-04-27 | 2013-10-28 | Magneti Marelli Spa | Servocomando idraulico di un cambio servocomandato |
CN105604741B (zh) * | 2016-03-14 | 2018-01-12 | 武汉科技大学 | 二甲醚发动机预混压燃燃烧系统阀门开度控制装置 |
US10954966B2 (en) | 2017-10-25 | 2021-03-23 | Raytheon Company | Bootstrap accumulator containing integrated bypass valve |
US11885454B2 (en) * | 2019-12-27 | 2024-01-30 | Performance Pulsation Control, Inc. | Bladder saver device |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2743741A (en) * | 1952-09-29 | 1956-05-01 | Techron Ltd | Hydraulic accumulator |
US2797708A (en) * | 1953-06-02 | 1957-07-02 | Gen Motors Corp | Accumulator |
US3043341A (en) * | 1957-07-12 | 1962-07-10 | Loewy Eng Co Ltd | Hydraulic accumulator |
DE1188247B (de) | 1959-10-17 | 1965-03-04 | Friedrich Stuebbe | Druckmittelakkumulator fuer den hydraulischen Antrieb von Spritzgiessmaschinen, Werkzeugmaschinen od. dgl. |
FR1297881A (fr) | 1961-05-26 | 1962-07-06 | Garniture d'étanchéité | |
DE1185025B (de) | 1962-06-13 | 1965-01-07 | Montan Hydraulik G M B H & Co | Druckoelspeicher fuer hydraulische Einrichtungen mit Steuerung durch ein Ventil |
US3979910A (en) * | 1973-04-16 | 1976-09-14 | Canada Wire And Cable Limited | Closed circuit hydraulic control system |
US3901279A (en) * | 1974-01-30 | 1975-08-26 | Karl Schnell | Filling apparatus for pasty media, particularly for sausage meat |
JPS51133631A (en) * | 1975-05-16 | 1976-11-19 | Hitachi Ltd | Dash pot |
DE3048651A1 (de) * | 1980-12-23 | 1982-07-15 | Gesellschaft für Hydraulik-Zubehör mbH, 6603 Sulzbach | "druckbehaelter, insbesondere hydropneumatischer speicher" |
US4343477A (en) * | 1981-02-04 | 1982-08-10 | Combustion Engineering, Inc. | Sealing device with thermal expansion pressure accumulator |
US4457348A (en) * | 1982-07-07 | 1984-07-03 | Mueller Martin J | Food product fill pump |
DE3705642A1 (de) * | 1986-07-02 | 1988-01-14 | Man Nutzfahrzeuge Gmbh | Energiespeicher- und abgabeeinrichtung |
DE3744179A1 (de) | 1987-12-24 | 1989-07-06 | Integral Hydraulik Co | Montage- und fuellvorrichtung fuer einen hydropneumatischen kolbenspeicher |
DE9113007U1 (de) * | 1991-10-19 | 1991-12-19 | Bolenz & Schäfer Maschinenfabrik GmbH, 35216 Biedenkopf | Zylinder-Druckspeicher mit Lade-Ölstromabschalteinrichtung in einer Hydraulikanlage |
US6116585A (en) * | 1997-08-11 | 2000-09-12 | Mannesmann Sachs Ag | Pressure holder with an enclosed gas mass |
-
1998
- 1998-06-19 DE DE19827363A patent/DE19827363A1/de not_active Withdrawn
-
1999
- 1999-06-02 DK DK99927842T patent/DK1086312T3/da active
- 1999-06-02 WO PCT/EP1999/003816 patent/WO1999067536A1/de active IP Right Grant
- 1999-06-02 US US09/601,134 patent/US6332477B1/en not_active Expired - Fee Related
- 1999-06-02 EP EP99927842A patent/EP1086312B1/de not_active Expired - Lifetime
- 1999-06-02 ES ES99927842T patent/ES2200523T3/es not_active Expired - Lifetime
- 1999-06-02 JP JP2000556159A patent/JP2002519590A/ja active Pending
- 1999-06-02 DE DE59905659T patent/DE59905659D1/de not_active Expired - Fee Related
- 1999-06-02 AT AT99927842T patent/ATE241087T1/de not_active IP Right Cessation
- 1999-06-02 PT PT99927842T patent/PT1086312E/pt unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101435450B (zh) * | 2007-11-13 | 2011-09-07 | 中国国际海运集装箱(集团)股份有限公司 | 液压单元、脚轮组件、及集装箱移动装置和方法 |
Also Published As
Publication number | Publication date |
---|---|
PT1086312E (pt) | 2003-10-31 |
US6332477B1 (en) | 2001-12-25 |
DE59905659D1 (de) | 2003-06-26 |
WO1999067536A1 (de) | 1999-12-29 |
DE19827363A1 (de) | 1999-12-23 |
ATE241087T1 (de) | 2003-06-15 |
DK1086312T3 (da) | 2003-09-15 |
EP1086312A1 (de) | 2001-03-28 |
JP2002519590A (ja) | 2002-07-02 |
ES2200523T3 (es) | 2004-03-01 |
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