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EP1985854A3 - Pump system - Google Patents

Pump system Download PDF

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Publication number
EP1985854A3
EP1985854A3 EP08153734A EP08153734A EP1985854A3 EP 1985854 A3 EP1985854 A3 EP 1985854A3 EP 08153734 A EP08153734 A EP 08153734A EP 08153734 A EP08153734 A EP 08153734A EP 1985854 A3 EP1985854 A3 EP 1985854A3
Authority
EP
European Patent Office
Prior art keywords
pump
valve
lines
pump system
safe reversing
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.)
Granted
Application number
EP08153734A
Other languages
German (de)
French (fr)
Other versions
EP1985854A2 (en
EP1985854B1 (en
Inventor
Konrad Christ
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.)
Hoerbiger Automatisierungstechnik Holding GmbH
Original Assignee
Hoerbiger Automatisierungstechnik Holding GmbH
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 Hoerbiger Automatisierungstechnik Holding GmbH filed Critical Hoerbiger Automatisierungstechnik Holding GmbH
Priority to PL08153734T priority Critical patent/PL1985854T3/en
Publication of EP1985854A2 publication Critical patent/EP1985854A2/en
Publication of EP1985854A3 publication Critical patent/EP1985854A3/en
Application granted granted Critical
Publication of EP1985854B1 publication Critical patent/EP1985854B1/en
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/002—Hydraulic systems to change the pump delivery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F04B9/117—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers the pumping members not being mechanically connected to each other
    • F04B9/1176—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers the pumping members not being mechanically connected to each other the movement of each piston in one direction being obtained by a single-acting piston liquid motor
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20507—Type of prime mover
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20538—Type of pump constant capacity
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20561—Type of pump reversible
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F15B2211/3051—Cross-check valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F15B2211/30515—Load holding valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/785—Compensation of the difference in flow rate in closed fluid circuits using differential actuators

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Um ein einfaches und sicheres Reversieren einer Pumpenanordnung zu ermöglichen, wird zur Rückführung des Volumenstromes oftmals ein Und-Ventil zwischen den beiden Verbraucherleitungen geschaltet. Dies kann jedoch zu einem hydraulischen Kurzschluss über das Und-Venil führen, wenn der Druck in den Leitungen nicht rasch genug abgebaut werden kann, wodurch eine sichere Reversierung nicht immer möglich ist. Dieses Problem wird durch die gegenständliche Erfindung behoben, indem zu jeder Pumpe ein entsperrbares Rückschlagventil 4, 5 angeordnet wird, das durch die zugehörige Pumpe 2, 3 betätigt wird.

Figure imgaf001
In order to enable a simple and safe reversing of a pump arrangement, an AND valve is often connected between the two consumer lines to return the volume flow. However, this can lead to a hydraulic short circuit across the and-valve, if the pressure in the lines can not be reduced quickly enough, whereby a safe reversing is not always possible. This problem is solved by the subject invention by a pilot-operated check valve 4, 5 is arranged to each pump, which is actuated by the associated pump 2, 3.
Figure imgaf001
EP08153734.2A 2007-04-23 2008-03-31 Pump system Ceased EP1985854B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08153734T PL1985854T3 (en) 2007-04-23 2008-03-31 Pump system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0063107A AT504791B1 (en) 2007-04-23 2007-04-23 PUMP ARRANGEMENT

Publications (3)

Publication Number Publication Date
EP1985854A2 EP1985854A2 (en) 2008-10-29
EP1985854A3 true EP1985854A3 (en) 2009-12-16
EP1985854B1 EP1985854B1 (en) 2013-08-28

Family

ID=39645507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08153734.2A Ceased EP1985854B1 (en) 2007-04-23 2008-03-31 Pump system

Country Status (3)

Country Link
EP (1) EP1985854B1 (en)
AT (1) AT504791B1 (en)
PL (1) PL1985854T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207068A (en) * 2010-03-30 2011-10-05 台湾联塑机器股份有限公司 Integrated pumps that can be connected to different power sources
DE102010022952B4 (en) * 2010-06-08 2012-12-06 Parker Hannifin Gmbh Hydraulic drive system for an actuator
CN104594749B (en) * 2014-11-24 2016-06-15 浙江工业职业技术学院 A kind of lifting glass for vehicle window system
CN104563719B (en) * 2014-11-24 2016-06-01 浙江工业职业技术学院 Automatic unloading type lifting glass for vehicle window system
CN107514395B (en) * 2017-08-29 2023-06-02 江苏星基智能装备有限公司 Control gas circuit and control method of quick wire clamping device
DE102019103925A1 (en) 2019-02-15 2020-08-20 Innogy Se Foundation of an offshore structure with submarine cable entry

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4233994A1 (en) * 1992-03-18 1993-09-23 Hoerbiger Ventilwerke Ag Hydraulic actuator esp. for sliding roof of vehicle - is backed up by hand-operated pump for supplying fluid to cylinder in absence of pressure from electric pump
DE4418776A1 (en) * 1993-06-16 1994-12-22 Hoerbiger Ventilwerke Ag Pressure-medium circuit arrangement
EP0959217A2 (en) * 1998-05-22 1999-11-24 Hoerbiger Hydraulik GmbH Assembly for hydraulically operating a tailgate
EP1161929A2 (en) * 2000-06-09 2001-12-12 SCHMITZ & SÖHNE GMBH & CO. KG Hydraulic system for a table, particularly an operating table, including a plurality of hydraulic actuators

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3339455A1 (en) * 1983-10-31 1985-05-09 P.A. Rentrop Hubbert & Wagner Fahrzeugausstattungen GmbH & Co KG, 3060 Stadthagen HAND-OPERATED HYDRAULIC PISTON PUMP
JP4056029B2 (en) * 1999-02-18 2008-03-05 創輝Ｈ・Ｓ株式会社 Power tilt device for ship propulsion equipment
AT409656B (en) * 1999-10-18 2002-10-25 Hoerbiger Hydraulik HYDRAULIC ACTUATING ARRANGEMENT
CA2294410C (en) * 2000-01-07 2002-03-26 Arthur W. Lauder Control system for reciprocating device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4233994A1 (en) * 1992-03-18 1993-09-23 Hoerbiger Ventilwerke Ag Hydraulic actuator esp. for sliding roof of vehicle - is backed up by hand-operated pump for supplying fluid to cylinder in absence of pressure from electric pump
DE4418776A1 (en) * 1993-06-16 1994-12-22 Hoerbiger Ventilwerke Ag Pressure-medium circuit arrangement
EP0959217A2 (en) * 1998-05-22 1999-11-24 Hoerbiger Hydraulik GmbH Assembly for hydraulically operating a tailgate
EP1161929A2 (en) * 2000-06-09 2001-12-12 SCHMITZ & SÖHNE GMBH & CO. KG Hydraulic system for a table, particularly an operating table, including a plurality of hydraulic actuators

Also Published As

Publication number Publication date
EP1985854A2 (en) 2008-10-29
EP1985854B1 (en) 2013-08-28
AT504791A4 (en) 2008-08-15
PL1985854T3 (en) 2014-01-31
AT504791B1 (en) 2008-08-15

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