EP1788258A2 - Vibration damping proportional valve - Google Patents

Vibration damping proportional valve Download PDF

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Publication number
EP1788258A2
EP1788258A2 EP06024180A EP06024180A EP1788258A2 EP 1788258 A2 EP1788258 A2 EP 1788258A2 EP 06024180 A EP06024180 A EP 06024180A EP 06024180 A EP06024180 A EP 06024180A EP 1788258 A2 EP1788258 A2 EP 1788258A2
Authority
EP
European Patent Office
Prior art keywords
valve
control slide
proportional valve
housing
constant
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Withdrawn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
EP06024180A
Other languages
German (de)
French (fr)
Other versions
EP1788258A3 (en
Inventor
Thomas Ulbricht
Bernd Schiek
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.)
ThyssenKrupp Presta Muelheim GmbH
Original Assignee
ThyssenKrupp Presta Steertec 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 ThyssenKrupp Presta Steertec GmbH filed Critical ThyssenKrupp Presta Steertec GmbH
Publication of EP1788258A2 publication Critical patent/EP1788258A2/en
Publication of EP1788258A3 publication Critical patent/EP1788258A3/en
Withdrawn legal-status Critical Current

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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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/008—Reduction of noise or vibration

Definitions

  • the present invention relates to a valve with a valve housing, wherein the housing has at least one supply line and a discharge line and in the housing, a externally controlled proportional valve between the supply line and discharge line is arranged.
  • the invention has for its object to further develop a conventional proportional valve to the effect that it has a better vibration damping at the same time compact dimensions.
  • control slide can be arranged in front of or behind the proportional valve with respect to the flow direction of the hydraulic medium in the housing. It is possible to form the control slide by a series or parallel circuit, consisting of constant aperture and Verstellblende. It is within the meaning of the invention to design the control slide differently.
  • control slide is formed by a series circuit consisting of constant and Verstellblende
  • the Verstellblende is controlled by the pressure drop across the constant aperture.
  • the constant shutter is arranged in relation to the flow direction of the hydraulic medium before the Verstellblende.
  • control slide is formed by a parallel circuit consisting of constant and Verstellblende
  • the Verstellblende is controlled by the pressure in front of the constant shutter of the control slide.
  • FIG. 1 shows a first embodiment of the valve according to the invention.
  • the valve has a housing 1, in which a proportional valve 2 and a control slide 3 are connected in series one behind the other.
  • the hydraulic medium enters the valve housing 1 and flows through first the proportional valve 2, which is externally controlled.
  • the hydraulic medium passes to the volume flow-controlled control slide 3, consisting of a constant aperture 3a, an adjusting diaphragm 3b and a drive 3c, consisting of a spring-loaded piston, the two working spaces in a cylinder sealingly separated from each other, which in turn over Feed lines 3d and 3e tap the pressure difference in front of and behind the constant shutter 3a.
  • FIG. 2 shows a second possible embodiment of the valve according to the invention, wherein the externally controlled proportional valve is connected downstream of the control slide in the housing 1. Otherwise, the valve corresponds to the valve according to FIG. 1.
  • Figures 3 and 4 show a third and fourth possible embodiment of the valve according to the invention, wherein the valves acc.
  • Figures 3 and 4 differ from those of Figures 1 and 2 respectively only in that the control slide 3 'are designed as pressure-controlled control slide.
  • the piston of the drive unit 3c is adjusted, and with it the opening cross section of the adjustment diaphragm 3b.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Driven Valves (AREA)
  • Magnetically Actuated Valves (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

The valve has a valve housing (1) with a supply pipe (4) and a delivery pipe (5). An externally controlled proportional valve (2) between the supply pipe and the delivery pipe is arranged in the housing. The proportional valve is connected in series with a control gate valve (3) between the supply pipe and the delivery pipe. The control gate valve is formed from a serial connection that is integrated into the housing. The serial connection exhibits a constant orifice plate (3a) and an adjusting orifice plate (3b).

Description

Die vorliegende Erfindung betrifft ein Ventil mit einem Ventilgehäuse, wobei das Gehäuse zumindest eine Zuleitung und eine Ableitung aufweist und in dem Gehäuse ein fremdgesteuertes Proportionalventil zwischen Zuleitung und Ableitung angeordnet ist.The present invention relates to a valve with a valve housing, wherein the housing has at least one supply line and a discharge line and in the housing, a externally controlled proportional valve between the supply line and discharge line is arranged.

Der Erfindung liegt die Aufgabe zugrunde, ein herkömmliches Proportionalventil dahingehend weiter zu entwickeln, dass es eine bessere Schwingungsdämpfung bei gleichzeitig kompakten Abmessungen aufweist.The invention has for its object to further develop a conventional proportional valve to the effect that it has a better vibration damping at the same time compact dimensions.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass dem Proportionalventil ein Regelschieber in Reihe geschaltet wird, und die Reihenschaltung in einem Gehäuse integriert wird. Durch die Integration ergeben sich vorteilhaft kleine Abmessungen des neuen Ventils, wobei sich die Dämpfungseigenschaften mittels des Regelschiebers vorgeben lassen. Vorteilhaft wird hierdurch der Volumenstrom geregelt bzw. reduziert. Die variable Blende des druck- oder volumenstromgesteuerten Regelschieber wirkt dabei al Dämpfungsglied.This object is achieved in that the proportional valve, a control slide is connected in series, and the series connection in a housing is integrated. The integration results in advantageously small dimensions of the new valve, wherein the damping properties can be specified by means of the control slide. Advantageously, the volume flow is thereby regulated or reduced. The variable orifice of the pressure or volume flow controlled control slide acts as an attenuator.

Der Regelschieber kann dabei vor oder hinter dem Proportionalventil in Bezug auf die Fließrichtung des Hydraulikmediums im Gehäuse angeordnet werden. Es ist möglich, den Regelschieber durch eine Serien- oder Parallelschaltung, bestehend aus Konstantblende und Verstellblende, zu bilden. Es ist gleichsam im Sinne der Erfindung, den Regelschieber anders auszugestalten.The control slide can be arranged in front of or behind the proportional valve with respect to the flow direction of the hydraulic medium in the housing. It is possible to form the control slide by a series or parallel circuit, consisting of constant aperture and Verstellblende. It is within the meaning of the invention to design the control slide differently.

Sofern der Regelschieber durch eine Serienschaltung bestehend aus Konstant- und Verstellblende ausgebildet ist, wird die Verstellblende über den Druckabfall an der Konstantblende gesteuert. Die Konstantblende ist dabei bezogen auf die Durchflussrichtung des Hydraulikmediums vor der Verstellblende angeordnet.If the control slide is formed by a series circuit consisting of constant and Verstellblende, the Verstellblende is controlled by the pressure drop across the constant aperture. The constant shutter is arranged in relation to the flow direction of the hydraulic medium before the Verstellblende.

Sofern der Regelschieber durch eine Parallelschaltung bestehend aus Konstant- und Verstellblende ausgebildet ist, wird die Verstellblende über den Druck vor der Konstantblende des Regelschiebers gesteuert.If the control slide is formed by a parallel circuit consisting of constant and Verstellblende, the Verstellblende is controlled by the pressure in front of the constant shutter of the control slide.

Nachfolgend werden verschiedene mögliche Ausführungsformen des erfindungsgemäßen Ventils anhand von Zeichnungen näher erläutert.Various possible embodiments of the valve according to the invention will be explained in more detail with reference to drawings.

Es zeigen:

Fig. 1:
Erste Ausführungsform des erfindungsgemäßen Ventils, mit Proportionalventil und nachgeschaltetem volumenstrom-gesteuertem Regelschieber;
Fig. 2:
zweite Ausführungsform des erfindungsgemäßen Ventils, mit Proportionalventil und vorgeschaltetem volumenstrom-gesteuertem Regelschieber;
Fig. 3:
dritte Ausführungsform des erfindungsgemäßen Ventils, mit Proportionalventil und nachgeschaltetem druckgesteuertem Regelschieber;
Fig. 4:
vierte mögliche Ausführungsform des erfindungsgemäßen Ventils, mit Proportionalventil und vorgeschaltetem druckgesteuertem Regelschieber.
Show it:
Fig. 1:
First embodiment of the valve according to the invention, with proportional valve and downstream volume flow controlled control slide;
Fig. 2:
second embodiment of the valve according to the invention, with proportional valve and upstream volume flow-controlled control slide;
3:
third embodiment of the valve according to the invention, with proportional valve and downstream pressure-controlled control slide;
4:
fourth possible embodiment of the valve according to the invention, with proportional valve and upstream pressure-controlled control slide.

Die Figur 1 zeigt eine erste Ausführungsform des erfindungsgemäßen Ventils. Das Ventil weist ein Gehäuse 1 auf, in dem ein Proportionalventil 2 und ein Regelschieber 3 in Reihe hintereinander geschaltet sind. Über die Zuleitung 4 gelangt das Hydraulikmedium in das Ventilgehäuse 1 und durchströmt zuerst das Proportionalventil 2, welches fremdgesteuert ist. Nach dem Durchtritt durch das Proportionalventil 2 gelangt das Hydraulikmedium zum volumenstrom-gesteuerten Regelschieber 3, bestehend aus einer Konstantblende 3a, einer Verstellblende 3b sowie einem Antrieb 3c, bestehend aus einem federbelasteten Kolben, der in einem Zylinder zwei Arbeitsräume voneinander abdichtend trennt, welche wiederum über Zuleitungen 3d und 3e die Druckdifferenz vor und hinter der Konstantblende 3a abgreifen. In Abhängigkeit des vom Volumenstrom abhängigen Druckabfalls an der Konstantblende wird der Kolben des Antriebs 3c verstellt und damit die Durchtrittsöffnung der Verstellblende 3b verstellt. Mit steigendem Volumenstrom nimmt auch der Druckabfall zu, wodurch der Kolben entgegen der Federkraft nach links verstellt und somit die Durchtrittsöffnung der Verstellblende 3b verkleinert wird. Schnellen Volumenstromänderungen wird hierdurch entgegengewirkt.FIG. 1 shows a first embodiment of the valve according to the invention. The valve has a housing 1, in which a proportional valve 2 and a control slide 3 are connected in series one behind the other. About the supply line 4, the hydraulic medium enters the valve housing 1 and flows through first the proportional valve 2, which is externally controlled. After passing through the proportional valve 2, the hydraulic medium passes to the volume flow-controlled control slide 3, consisting of a constant aperture 3a, an adjusting diaphragm 3b and a drive 3c, consisting of a spring-loaded piston, the two working spaces in a cylinder sealingly separated from each other, which in turn over Feed lines 3d and 3e tap the pressure difference in front of and behind the constant shutter 3a. Depending on the volume flow-dependent pressure drop across the constant aperture, the piston of the actuator 3c is adjusted and thus the passage opening of the adjusting diaphragm 3b adjusted. With increasing volume flow also increases the pressure drop, whereby the piston is moved counter to the spring force to the left and thus the passage opening of Verstellblende 3b is reduced. Fast volume flow changes is counteracted thereby.

Anschlüsse für das fremdgesteuerte Proportionalventil 2 sind in den Figuren nicht dargestellt. Sie hängen im wesentlichen davon ab, ob das Proportionalventil mittels elektrischer Signale oder z.B. hydraulisch gesteuert ist.Connections for the externally controlled proportional valve 2 are not shown in the figures. They essentially depend on whether the proportional valve is controlled by means of electrical signals or e.g. is hydraulically controlled.

Die Figur 2 zeigt eine zweite mögliche Ausführungsform des erfindungemäßen Ventils, wobei das fremdgesteuerte Proportionalventil dem Regelschieber im Gehäuse 1 nachgeschaltet ist. Ansonsten entspricht das Ventil dem Ventil gemäß Figur 1.FIG. 2 shows a second possible embodiment of the valve according to the invention, wherein the externally controlled proportional valve is connected downstream of the control slide in the housing 1. Otherwise, the valve corresponds to the valve according to FIG. 1.

Die Figuren 3 und 4 zeigen eine dritte und vierte mögliche Ausgestaltung des erfindungsgemäßen Ventils, wobei sich die Ventile gem. der Figuren 3 und 4 von denen der Figuren 1 und 2 jeweils nur dadurch unterscheiden, das die Regelschieber 3' als druckgesteuerte Regelschieber ausgebildet sind. Hierzu sind die Konstantblende 3a und die Verstellblende 3b der Regelschieber 3' parallel zueinander geschaltet, wobei eine Zuleitung 3f den Druck vor der Parallelschaltung abgreift und der Antriebseinheit 3c zuführt. In Abhängigkeit des in der Zuführleitung 3f befindlichen Drucks wird der Kolben der Antriebseinheit 3c verstellt und mit ihm der Öffnungsquerschnitt der Verstellblende 3b.Figures 3 and 4 show a third and fourth possible embodiment of the valve according to the invention, wherein the valves acc. Figures 3 and 4 differ from those of Figures 1 and 2 respectively only in that the control slide 3 'are designed as pressure-controlled control slide. For this purpose, the constant shutter 3a and the Verstellblende 3b of the control slide 3 'are connected in parallel to each other, wherein a supply line 3f picks up the pressure before the parallel connection and the drive unit 3c supplies. Depending on the pressure in the supply line 3f, the piston of the drive unit 3c is adjusted, and with it the opening cross section of the adjustment diaphragm 3b.

Claims (4)

Ventil mit einem Ventilgehäuse (1), wobei das Gehäuse (1) zumindest eine Zuleitung (4) und eine Ableitung (5) aufweist und in dem Gehäuse (1) ein fremdgesteuertes Proportionalventil (2) zwischen Zuleitung (4) und Ableitung (5) angeordnet ist, dadurch gekennzeichnet, dass das fremdgesteuerte Proportionalventil (2) in Reihe mit einem Regelschieber (3) zwischen Zuleitung (4) und Ableitung (5) geschaltet ist, wobei der Regelschieber (3) zumindest aus einer Reihen- oder Parallelschaltung gebildet ist, die zumindest eine Konstantblende (3a) und eine Verstellblende (3b) aufweist.Valve with a valve housing (1), wherein the housing (1) has at least one supply line (4) and one discharge line (5) and in the housing (1) an externally controlled proportional valve (2) between supply line (4) and discharge line (5) is arranged, characterized in that the externally controlled proportional valve (2) in series with a control slide (3) between the supply line (4) and discharge (5) is connected, wherein the control slide (3) is formed at least from a series or parallel connection, which has at least one constant diaphragm (3a) and one adjustment diaphragm (3b). Ventil nach Anspruch 1, dadurch gekennzeichnet, dass der Öffnungsquerschnitt der Verstellblende (3b) des Regelschiebers (3) bei Parallelschaltung von Konstant- und Verstellblende (3a, 3b) durch den Druck vor der Parallelschaltung befindlichen Druck gesteuert ist.Valve according to claim 1, characterized in that the opening cross-section of the Verstellbrende (3b) of the control slide (3) is controlled in the parallel circuit of constant and Verstellblende (3a, 3b) by the pressure before the parallel circuit pressure. Ventil nach Anspruch 1, dadurch gekennzeichnet, dass der Öffnungsquerschnitt der Verstellblende (3b) des Regelschiebers (3) bei Serienschaltung von Konstant- und Verstellblende (3a, 3b), über den Druckabfall an der Konstantblende (3a) gesteuert ist.Valve according to claim 1, characterized in that the opening cross section of the Verstellblende (3b) of the control slide (3) in series connection of constant and Verstellblende (3a, 3b) is controlled via the pressure drop across the constant aperture (3a). Ventil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Ventilgehäuse über mindestens einen Anschluss zur Steuerung und/oder Energieversorgung des fremdgesteuerten Proportionalventils (2) aufweist.Valve according to one of claims 1 to 3, characterized in that the valve housing has at least one connection for controlling and / or power supply of the externally controlled proportional valve (2).
EP06024180A 2005-11-22 2006-11-22 Vibration damping proportional valve Withdrawn EP1788258A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510055894 DE102005055894A1 (en) 2005-11-22 2005-11-22 Vibration-damped proportional valve

Publications (2)

Publication Number Publication Date
EP1788258A2 true EP1788258A2 (en) 2007-05-23
EP1788258A3 EP1788258A3 (en) 2009-09-23

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ID=37762763

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EP06024180A Withdrawn EP1788258A3 (en) 2005-11-22 2006-11-22 Vibration damping proportional valve

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DE (1) DE102005055894A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106224314A (en) * 2016-08-26 2016-12-14 宁波诚天液压有限公司 A kind of trimmer valve
US11002298B2 (en) * 2015-10-12 2021-05-11 Hydac Technology Gmbh Damping device

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Publication number Priority date Publication date Assignee Title
DD129984B1 (en) * 1977-04-12 1981-02-25 Goetz Kamm BRAKE VALVE HIGH CONTROL UNIT
DE2919206A1 (en) * 1979-05-12 1980-11-20 Bosch Gmbh Robert DEVICE FOR CONTROLLING A HYDRAULIC CONSUMER
DE3909291C2 (en) * 1989-03-21 1998-10-29 Heilmeier & Weinlein Directional control valve with pressure compensator
DE19734020A1 (en) * 1997-08-06 1999-02-11 Mannesmann Rexroth Ag Pilot operated pressure relief valve
DE19908614C1 (en) * 1999-02-27 2000-09-21 Rexroth Hydraulik Parchim Gmbh Priority valve for a hydraulic steering circuit
DE10123157C1 (en) * 2001-04-27 2002-11-14 Demag Cranes & Components Gmbh pneumatic valve
DE10145959C2 (en) * 2001-09-18 2003-10-30 Fraunhofer Ges Forschung Flow control valve
DE10254687B4 (en) * 2002-11-23 2007-05-10 Daimlerchrysler Ag Hydraulic power steering for motor vehicles
DE10337376A1 (en) * 2003-08-13 2005-04-14 Thyssenkrupp Presta Steertec Gmbh Reaction system
DE102005052078A1 (en) * 2005-10-28 2007-05-16 Thyssenkrupp Presta Steertec Steering device with pressure relief valve for end position damping and overload protection of the pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11002298B2 (en) * 2015-10-12 2021-05-11 Hydac Technology Gmbh Damping device
CN106224314A (en) * 2016-08-26 2016-12-14 宁波诚天液压有限公司 A kind of trimmer valve
CN106224314B (en) * 2016-08-26 2018-06-05 宁波诚天液压有限公司 A kind of trimmer valve

Also Published As

Publication number Publication date
EP1788258A3 (en) 2009-09-23
DE102005055894A1 (en) 2007-05-31

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