DE2004147A1 - Hydro-pneumatic pressure accumulator - Google Patents
Hydro-pneumatic pressure accumulatorInfo
- Publication number
- DE2004147A1 DE2004147A1 DE19702004147 DE2004147A DE2004147A1 DE 2004147 A1 DE2004147 A1 DE 2004147A1 DE 19702004147 DE19702004147 DE 19702004147 DE 2004147 A DE2004147 A DE 2004147A DE 2004147 A1 DE2004147 A1 DE 2004147A1
- Authority
- DE
- Germany
- Prior art keywords
- gas
- space
- pressure accumulator
- seals
- liquid
- 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
- 239000007788 liquid Substances 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J12/00—Pressure vessels in general
-
- 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
-
- 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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Description
Gegenstand: Hydro-pneumatischer Druckspeicher Die Erfindung betrifft einen hydro-pneumatischen Druckspeicher mit einem im wesentlichen zylinderförmigen Gehäuse und einem im Innern des Gehäuses gleitbar und mittels zweier axial voneinander entfernter Dichtungen abgedichtet angeordneten Kolben, welcher das Innere in einen mit einem unter Druck stehenden Gas beaufschlagten Gasraum und einem mit Flüssigkeit beaufschlagbaren Flüssigkeitsraum unterteilt, wobei im Kolben ein Ringraum zwischen den Dichtungen vorgesehen ist.Subject: Hydro-pneumatic pressure accumulator The invention relates to a hydro-pneumatic pressure accumulator with a substantially cylindrical Housing and one inside the housing slidable and by means of two axially from each other removed seals arranged piston, which the interior in a with a pressurized gas chamber and one with liquid acted upon liquid space divided, wherein in the piston an annular space between the seals is provided.
bekanntlich hängt die Funktionsfähigkeit derartiger Druckspeicher weitgehend von ihrer Gasdichtheit,ab, da Gasverluste eine Verminderung der Gasvorspannung und damit eine Veränderung des ;;etriebsverhaltens mit sich bringen.Außerdem können in den Flüssigkeitsraum gelangende Gasmengen in den Flüssigkeitskreislauf transportiert werden und dort Störungen hervorrufen.as is known, the functionality of such pressure accumulators depends largely on their gas tightness, since gas losses reduce the gas prestress and thus bring about a change in operating behavior Gas quantities reaching the liquid space are transported into the liquid cycle and cause disturbances there.
Es ist daher Aufgabe der Erfindung, die auftretenden Gasverluste ohne besonderen Aufwand zu verringern.It is therefore the object of the invention to avoid the gas losses that occur to reduce special effort.
Die Lösung dieser Aufgabe erfolgt erfindungsgemäß dadurch, daß der Ringraum zwischen den Dichtungen über ein in Richtung Gasraum öffnendes Rückschlagventil mit dem Gasraum verbunden ist.This object is achieved according to the invention in that the Annular space between the seals via a check valve that opens in the direction of the gas space is connected to the gas space.
Durch eine derartige Ausbildung wird vorteilhaftig erreicht, daß die an der gasraumseitigen Dichtung r vorbeitretenden Gasmengen zunächst im Ringraum ein Gaspolster aufbauen können. Dieses Gaspolster kann annähernd einen Druck in der Höhe des jeweiligen Systemdruckes erreichen. Wenn der oruckspeicher dann aber wieder auf der Flüssigkeitsseite entleert wird, besteht ein Druckgefälle vom Ringraum zum Gasraum.Such a design is advantageously achieved that the Amounts of gas passing past the seal r on the gas chamber side initially in the annular chamber can build up a gas cushion. This gas cushion can approximate a pressure in the level of the respective system pressure. If the oruck memory then is emptied again on the liquid side, there is a pressure drop from the annulus to the gas compartment.
Das Rückschlagventil öffnet sich, und Gas strömt in den Gasraum zurück. Der im Ringraum verbleibende Druck entspricht dann mindestens der Gasvorspannung.The check valve opens and gas flows back into the gas space. The pressure remaining in the annular space then corresponds at least to the gas preload.
Die Erfindung wird anhand eines in der iLLbildung dargestellten Ausführungsbeispieles näher erläutert.The invention is based on an embodiment shown in the ILL formation explained in more detail.
din Zylinder 1 ist stirnseitig von zwei Deckeln 2 und 3 verschlossen. Im Innern des Zylinders 1 ist gleitbar ein Kolben 4 angeordnet, der an seinem Umfang zwei Dichtungen 5 und 6 besitzt, zwischen denen sich ein Ringraum 7 befindet. Der Kolben 4 teilt das Innere des Zylindersl in einen Gasraum 8 und einen Flüssigkeitsraum 9. Durch eine mittels einer Schraube 10 verschließbare Gaseinfüllöffnung 11 wird Gas in den Gasraum o gefüllt. Die Beaufschlagung des Flüssigkeitsraumes 9 erfolgt über einen Flüssigkeitsanschluß 12. Ein Kanal 13, in den ein in Richtung Gasraum 1 öffnendes Rückschlagventil 14 eingebaut ist, verbindet den Ringraum 7 mit dem Gasraum 8.The cylinder 1 is closed at the front by two covers 2 and 3. Inside the cylinder 1, a piston 4 is slidably disposed on its circumference has two seals 5 and 6, between which an annular space 7 is located. Of the Piston 4 divides the interior of the cylinder into a gas space 8 and a liquid space 9. Through a gas filling opening 11 that can be closed by means of a screw 10 Gas filled into the gas space o. The application of the liquid space 9 takes place Via a liquid connection 12. A channel 13, into which one in the direction of the gas space 1 opening check valve 14 is installed, connects the annular space 7 with the Gas compartment 8.
Die Erfindung ist nicht auf das Ausf(ihrungsbeispiel beschränkt. Insbesondere in der Konstruktion des RUckschlagventils sind verschiedene Varianten möglich.The invention is not limited to the exemplary embodiment. In particular Different variants are possible in the construction of the non-return valve.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702004147 DE2004147A1 (en) | 1970-01-30 | 1970-01-30 | Hydro-pneumatic pressure accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702004147 DE2004147A1 (en) | 1970-01-30 | 1970-01-30 | Hydro-pneumatic pressure accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2004147A1 true DE2004147A1 (en) | 1971-08-05 |
Family
ID=5760926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19702004147 Pending DE2004147A1 (en) | 1970-01-30 | 1970-01-30 | Hydro-pneumatic pressure accumulator |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2004147A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0417440A1 (en) * | 1989-09-13 | 1991-03-20 | Robert Bosch Gmbh | Fluid accumulator, especially for vehicle braking systems |
| WO1991004420A1 (en) * | 1989-09-13 | 1991-04-04 | Robert Bosch Gmbh | Pressure medium reservoir, especially for vehicle braking systems |
| DE102016004125A1 (en) * | 2016-04-05 | 2017-10-05 | Linde Aktiengesellschaft | Separating piston for constant pressure accumulator |
-
1970
- 1970-01-30 DE DE19702004147 patent/DE2004147A1/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0417440A1 (en) * | 1989-09-13 | 1991-03-20 | Robert Bosch Gmbh | Fluid accumulator, especially for vehicle braking systems |
| WO1991004420A1 (en) * | 1989-09-13 | 1991-04-04 | Robert Bosch Gmbh | Pressure medium reservoir, especially for vehicle braking systems |
| DE102016004125A1 (en) * | 2016-04-05 | 2017-10-05 | Linde Aktiengesellschaft | Separating piston for constant pressure accumulator |
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