[go: up one dir, main page]

DE3824499A1 - Gas accumulator for fluids with a separating piston - Google Patents

Gas accumulator for fluids with a separating piston

Info

Publication number
DE3824499A1
DE3824499A1 DE19883824499 DE3824499A DE3824499A1 DE 3824499 A1 DE3824499 A1 DE 3824499A1 DE 19883824499 DE19883824499 DE 19883824499 DE 3824499 A DE3824499 A DE 3824499A DE 3824499 A1 DE3824499 A1 DE 3824499A1
Authority
DE
Germany
Prior art keywords
separating piston
seal
chamber
oil chamber
gas pressure
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.)
Withdrawn
Application number
DE19883824499
Other languages
German (de)
Inventor
Friedhelm Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19883824499 priority Critical patent/DE3824499A1/en
Publication of DE3824499A1 publication Critical patent/DE3824499A1/en
Withdrawn legal-status Critical Current

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
    • F15B2201/413—Liquid ports having multiple 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
    • 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
    • F15B2201/50—Monitoring, detection and testing means for accumulators
    • F15B2201/515—Position detection for separating means

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

At its top open end, the separating piston has an elastic seal, with an oil chamber in front, against the gas pressure. At its bottom end, it likewise has an elastic seal against the accumulator fluid and above it an oil chamber in front for lubricating the seal. A pressureless space is located between the two seals and oil chambers. This space is accessible from outside through a window in the cylinder and can be used for the tank level indication and limit switch. <IMAGE>

Description

Normale Gasdruckspeicher für Flüssigkeiten mit Trennkolben besitzen zwischen Flüssigkeits- und Gasdruckraum eine einfache elastische Dichtung.Normal gas pressure accumulator for liquids with separating pistons have between and gas pressure room a simple elastic Poetry.

Für bestimmte Flüssigkeiten, die be­ sonders aggressiv sind und nicht mit dem Druckgas in Verbindung kommen dürfen, ist dieses nicht ausreichend.For certain liquids that be are particularly aggressive and not with that Compressed gas may come into contact is this unsatisfactory.

Die vorliegende Erfindung vermeidet diesen Nachteil dadurch, daß sich zwischen dem Flüssigkeits- und Gasdruckraum ein druckloser Raum befindet und die jeweiligen elastischen Dichtungen dieser Räume durch vorgelagerte Ölkammern abgedichtet und geschmiert werden.The present invention avoids this Disadvantage in that between the Liquid and gas pressure chamber an unpressurized Space is located and the respective elastic Seals of these rooms by upstream Oil chambers are sealed and lubricated.

Die Fig. 1 zeigt einen Gasdruckspeicher nach dieser Erfindung. Der Zylinder 1 mit den beiden Anschlußstutzen 2 und 3 für die Speicherflüssigkeit ist nach oben durch einen Deckel 4 mit der Dichtung 5 druckdicht abge­ schlossen. Fig. 1 shows a gas pressure accumulator according to this invention. The cylinder 1 with the two connecting pieces 2 and 3 for the storage liquid is closed in a pressure-tight manner by a cover 4 with the seal 5 .

Das Druckgas wird durch die Öffnung 6 zugeführt. Im Zylinder 1 befindet sich der Trennkolben 7, welcher den Druckgasraum 8 vom Flüssigkeits­ raum 9 trennt. Der Trennkolben 7 trägt an seiner oberen Seite die Dichtung 10 mit der vorgelagerten Ölkammer 11 als Abdichtung gegen das Druckgas. Das Öl in der Ölkammer 11 verbessert das Abdichtverhalten der Dichtung 10, weil diese nicht mehr gegen Druckgas, sondern nur noch gegen Öl abdichten muß, gleichzeitig wird die Dichtung und der Trennkolben 7 geschmiert. Am unteren Ende des Trennkolbens 7 befindet sich die Dichtung 12 mit der Ölkammer 13 als Abdichtung gegen die Speicherflüssigkeit. Auch hier hat das Öl in der Ölkammer 13 die Aufgabe, die Abdichtung zu verbessern und den Trennkolben 7 zu schmieren.The compressed gas is fed through the opening 6 . In the cylinder 1 there is the separating piston 7 , which separates the compressed gas chamber 8 from the liquid chamber 9 . The separating piston 7 carries on its upper side the seal 10 with the upstream oil chamber 11 as a seal against the compressed gas. The oil in the oil chamber 11 improves the sealing behavior of the seal 10 because it no longer has to seal against compressed gas, but only against oil, and the seal and the separating piston 7 are lubricated at the same time. At the lower end of the separating piston 7 there is the seal 12 with the oil chamber 13 as a seal against the storage liquid. Here, too, the oil in the oil chamber 13 has the task of improving the seal and lubricating the separating piston 7 .

Zwischen den beiden Abdichtungen 10 und 12 des Trennkolbens 7 befindet sich ein druckloser Raum 14, dieser ist durch ein Fenster 15 im Zylinder 1 zugänglich. Durch diese Fenster 15 kann die Stellung des Trennkolbens 7 beobachtet - und damit die Menge der Speicherflüssigkeit festgestellt werden, beispielsweise durch die Schalter 16 und 17, welche durch die Steuerkanten 18 und 19 des Trennkolbens 7 betätigt werden. There is a pressure-free space 14 between the two seals 10 and 12 of the separating piston 7 , which is accessible through a window 15 in the cylinder 1 . The position of the separating piston 7 can be observed through these windows 15 - and thus the amount of the storage liquid can be determined, for example by the switches 16 and 17 , which are actuated by the control edges 18 and 19 of the separating piston 7 .

Wird der Druckgasraum 8 über die Bohrung 6 an einen großen Druckgasbehälter angeschlossen, so ändert sich mit zunehmender Füllung des Flüssigkeitsraumes 9 der Druck im Raum 8 praktisch nicht. Man kann aber auch den Druckgasraum 8 mit dem gewünschten Druck befüllen und durch Verschließen der Bohrung 6 den Gasdruckspeicher unabhängig betreiben. Durch die Abdichtung des Druckgasraumes 8 durch die Dichtung 10 mit der vorgelagerten Ölkammer 11 ist praktisch kein Druckverlust zu befürchten.If the compressed gas chamber 8 is connected to a large compressed gas container via the bore 6 , the pressure in the chamber 8 practically does not change with increasing filling of the liquid chamber 9 . But you can also fill the pressure gas chamber 8 with the desired pressure and operate the gas pressure accumulator independently by closing the bore 6 . Due to the sealing of the compressed gas chamber 8 by the seal 10 with the upstream oil chamber 11 , practically no pressure loss is to be feared.

Claims (3)

1. Gasdruckspeicher mit Trennkolben, dadurch gekennzeichnet, daß der Trennkolben (7) zur Abdichtung gegen den Druckgasraum (8) eine Dichtung (10) mit vorgelagerter Ölkammer (11) und zur Abdichtung gegen Flüssigkeitsraum (9) eine Dichtung (12) mit vorgelagerter Ölkammer (13) besitzt und daß sich zwischen diesen beiden Abdichtungen ein druckloser Raum (14) befindet.1. Gas pressure accumulator with separating piston, characterized in that the separating piston ( 7 ) for sealing against the compressed gas space ( 8 ) has a seal ( 10 ) with an upstream oil chamber ( 11 ) and for sealing against a liquid chamber ( 9 ) a seal ( 12 ) with an upstream oil chamber ( 13 ) and that there is a pressure-free space ( 14 ) between these two seals. 2. Gasdruckspeicher mit Trennkolben nach Anspruch 1, dadurch gekennzeichnet, daß die Stellung des Trennkolbens (7) durch ein Fenster (15) im Zylinder (1) beobachtet werden kann.2. Gas pressure accumulator with separating piston according to claim 1, characterized in that the position of the separating piston ( 7 ) can be observed through a window ( 15 ) in the cylinder ( 1 ). 3. Gasdruckspeicher mit Trennkolben nach Anspruch 1, dadurch gekennzeichnet, daß der Trennkolben (7) zwei Steuerkanten (18) und (19) besitzt, durch welche zwei Schalter (16) und (17) betätigt werden können.3. Gas pressure accumulator with separating piston according to claim 1, characterized in that the separating piston ( 7 ) has two control edges ( 18 ) and ( 19 ) through which two switches ( 16 ) and ( 17 ) can be actuated.
DE19883824499 1988-07-20 1988-07-20 Gas accumulator for fluids with a separating piston Withdrawn DE3824499A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19883824499 DE3824499A1 (en) 1988-07-20 1988-07-20 Gas accumulator for fluids with a separating piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883824499 DE3824499A1 (en) 1988-07-20 1988-07-20 Gas accumulator for fluids with a separating piston

Publications (1)

Publication Number Publication Date
DE3824499A1 true DE3824499A1 (en) 1990-01-25

Family

ID=6359050

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883824499 Withdrawn DE3824499A1 (en) 1988-07-20 1988-07-20 Gas accumulator for fluids with a separating piston

Country Status (1)

Country Link
DE (1) DE3824499A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4205199A1 (en) * 1991-02-20 1992-09-10 Showa Seisakusho Gyoda Kk Locking piece for housing of piston pressure accumulator - has stepped profile engaged by deformable housing
DE4212938A1 (en) * 1992-04-18 1993-10-21 Rexroth Mannesmann Gmbh Seal testing appts. e.g. for testing vehicle shock absorber - has pressure source for filling first chamber with gas and uses pressure sensor to determine pressure increase in second chamber
WO1996027448A1 (en) * 1995-03-07 1996-09-12 Seva Device with a removable tank for dispensing a viscous or fluid material, and use thereof
DE10206289A1 (en) * 2001-10-17 2003-04-30 Continental Teves Ag & Co Ohg piston accumulators
WO2003038288A1 (en) * 2001-10-26 2003-05-08 Continental Teves Ag & Co. Ohg Piston-type accumulator
DE10242104A1 (en) * 2002-03-06 2003-09-18 Continental Teves Ag & Co Ohg Piston accumulator for electrohydraulic brake system of motor vehicle, has annular space filled with liquid and located between piston wall and accumulator housing, also has sensor for monitoring liquid volume inside liquid container
WO2006056642A1 (en) * 2004-11-23 2006-06-01 Polarteknik Pmc Oy Ab Arrangement in connection with an oscillator cylinder
EP2094974A4 (en) * 2006-11-13 2012-05-23 Polarteknik Pmc Oy Ab DEVICE FOR CONTROLLING AN OSCILLATING CYLINDER
CN105587715A (en) * 2016-01-27 2016-05-18 张春瑜 Efficient hydraulic power unit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR429749A (en) * 1911-05-16 1911-09-29 Antony Bruyant Pneumatic water hammer device applicable to pressurized liquid pipelines
DE3138214A1 (en) * 1981-09-22 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Hydropneumatic pressure reservoir consisting of a piston and cylinder
DE3411367A1 (en) * 1984-03-28 1985-10-10 Robert Bosch Gmbh, 7000 Stuttgart PRESSURE STORAGE
WO1987006655A1 (en) * 1986-04-29 1987-11-05 Allied Corporation Pressure-balanced seals for vented accumulators
EP0256240A1 (en) * 1986-08-14 1988-02-24 AlliedSignal Inc. Accumulator having fluid-lubricated seals

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR429749A (en) * 1911-05-16 1911-09-29 Antony Bruyant Pneumatic water hammer device applicable to pressurized liquid pipelines
DE3138214A1 (en) * 1981-09-22 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Hydropneumatic pressure reservoir consisting of a piston and cylinder
DE3411367A1 (en) * 1984-03-28 1985-10-10 Robert Bosch Gmbh, 7000 Stuttgart PRESSURE STORAGE
WO1987006655A1 (en) * 1986-04-29 1987-11-05 Allied Corporation Pressure-balanced seals for vented accumulators
EP0256240A1 (en) * 1986-08-14 1988-02-24 AlliedSignal Inc. Accumulator having fluid-lubricated seals

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4205199A1 (en) * 1991-02-20 1992-09-10 Showa Seisakusho Gyoda Kk Locking piece for housing of piston pressure accumulator - has stepped profile engaged by deformable housing
DE4212938A1 (en) * 1992-04-18 1993-10-21 Rexroth Mannesmann Gmbh Seal testing appts. e.g. for testing vehicle shock absorber - has pressure source for filling first chamber with gas and uses pressure sensor to determine pressure increase in second chamber
WO1996027448A1 (en) * 1995-03-07 1996-09-12 Seva Device with a removable tank for dispensing a viscous or fluid material, and use thereof
FR2731419A1 (en) * 1995-03-07 1996-09-13 Seva DEVICE FOR DISPENSING VISCOUS OR FLUID MATERIAL COMPRISING A REMOVABLE TANK AND USE OF SUCH A DEVICE
US5915593A (en) * 1995-03-07 1999-06-29 Seva Apparatus for continuously dispensing viscous or fluid material from a removable tank, having a variable volume storage device
DE10206289A1 (en) * 2001-10-17 2003-04-30 Continental Teves Ag & Co Ohg piston accumulators
WO2003038288A1 (en) * 2001-10-26 2003-05-08 Continental Teves Ag & Co. Ohg Piston-type accumulator
DE10242104A1 (en) * 2002-03-06 2003-09-18 Continental Teves Ag & Co Ohg Piston accumulator for electrohydraulic brake system of motor vehicle, has annular space filled with liquid and located between piston wall and accumulator housing, also has sensor for monitoring liquid volume inside liquid container
WO2006056642A1 (en) * 2004-11-23 2006-06-01 Polarteknik Pmc Oy Ab Arrangement in connection with an oscillator cylinder
US7681486B2 (en) 2004-11-23 2010-03-23 Polarteknik Pmc Oy Ab Arrangement in connection with an oscillator cylinder
EP2094974A4 (en) * 2006-11-13 2012-05-23 Polarteknik Pmc Oy Ab DEVICE FOR CONTROLLING AN OSCILLATING CYLINDER
CN105587715A (en) * 2016-01-27 2016-05-18 张春瑜 Efficient hydraulic power unit
CN105587715B (en) * 2016-01-27 2018-01-19 张春瑜 A kind of efficient hydraulic power unit

Similar Documents

Publication Publication Date Title
DE2851070C3 (en) Device for relieving the seal package of a piston rod of a hydraulic telescopic shock absorber
DE3824499A1 (en) Gas accumulator for fluids with a separating piston
DE2156953A1 (en) SHAFT SEAL FOR REACTOR CIRCULAR PUMPS
DE1201684B (en) Single-acting, hand-operated piston pump installed in a vessel
DE69815879T2 (en) valve assembly
DE2910554A1 (en) Pressure accumulator with rubber partition - has second metal partition enclosing gas chamber with fluid between partitions
DE102005052385B4 (en) pressure reducer
DE482772C (en) Pump for caustic liquids
DE2445780A1 (en) PRESSURE TRANSMITTER
DE1473100A1 (en) Equalizing pump
DE2313894A1 (en) PRESSURE COMPENSATOR, IN PARTICULAR PRESSURE COMPENSATOR FOR MOTORIZED VALVE DRIVES OR ACTUATING DEVICES FOR VALVES
DE8809273U1 (en) Gas pressure accumulator for liquids with a separating piston
DE882930C (en) High vacuum double valve
DE2544579A1 (en) Cut off brake valve for flow control - has valve piston hermetically sealing middle chamber and connecting chamber
DE202015100615U1 (en) piston pump
DE664106C (en) Safety valve for hydraulically operated diaphragm pumps
AT158241B (en) Safety valve for hydraulically operated diaphragm pumps.
DE9107284U1 (en) Piston pump
DE1193368B (en) Piston pump for chemically aggressive fluids
DE1992800U (en) PNEUMATIC TENSION SPRING.
DE1777424C2 (en) Hydropneumatic clamping cylinder
DE102016118817B3 (en) Pump that can be operated either in a fast pumping mode or a high pressure pumping mode
DE1810525A1 (en) Device controlled by the internal pressure in the working area for relieving mechanical seals operating with barrier fluid
DE1900861U (en) VALVE ACTUATED BY THE PRESSURE TO BE SHUT OFF.
DE449151C (en) Valveless piston pump, especially for measuring purposes

Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
8139 Disposal/non-payment of the annual fee