DE1775876A1 - Device for influencing axially acting flow forces on control pistons - Google Patents

Device for influencing axially acting flow forces on control pistons

Info

Publication number
DE1775876A1
DE1775876A1 DE19691775876 DE1775876A DE1775876A1 DE 1775876 A1 DE1775876 A1 DE 1775876A1 DE 19691775876 DE19691775876 DE 19691775876 DE 1775876 A DE1775876 A DE 1775876A DE 1775876 A1 DE1775876 A1 DE 1775876A1
Authority
DE
Germany
Prior art keywords
control piston
flow
control
influencing
axially acting
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
Application number
DE19691775876
Other languages
German (de)
Inventor
Kurt Staehle
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.)
Jos Schneider Optische Werke GmbH
Original Assignee
Jos Schneider Optische Werke 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
Priority to DE19671650559 priority Critical patent/DE1650559B1/en
Application filed by Jos Schneider Optische Werke GmbH filed Critical Jos Schneider Optische Werke GmbH
Priority to DE19691775876 priority patent/DE1775876A1/en
Priority to DE19691952811 priority patent/DE1952811A1/en
Publication of DE1775876A1 publication Critical patent/DE1775876A1/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
    • F15B13/0438—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being of the nozzle-flapper type
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F16K11/0708—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides comprising means to avoid jamming of the slide or means to modify the flow
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K39/00—Devices for relieving the pressure on the sealing faces
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K39/00—Devices for relieving the pressure on the sealing faces
    • F16K39/04—Devices for relieving the pressure on the sealing faces for sliding valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Damping Devices (AREA)

Description

"Vorrichtung zur Beeinflussung von axial wirkenden Strömungskräften an Steuerkolben." Die Erfindung bezieht sich auf eine Vorrichtung zur Beeinflussung von axial wirkenden Strömungskräften an Steuerkolben in druckmittelgesteuerten oder druckmittelsteuernden Ventilsystemen, z.H. Druckregelventile, Mengenventile, Servoventile und dgl."Device for influencing axially acting flow forces on control piston. "The invention relates to a device for influencing of axially acting flow forces on control pistons in pressure medium-controlled or pressure medium-controlling valve systems, e.g. Pressure regulating valves, flow control valves, servo valves and the like

Bei bekannten Ventilsystemen-erfolgt durch eine entsprechende Ausbildung des aus dem Kolbenschaft und dem Zylinderinnenraum bestehenden Strömungskanals eine Kompensation der Strömungskraft durch Strömungsumkehr. Die physikalischen Zusammenhänge innerhalb des Strömungskanals sind sehr komplex und erlauben nur eine Annäherung an die gewünschten Eigenschaften. Veiterhin ist die erforderliche geometrische Form am Kolben und insbesondere im Zylinderinnenraum nur mit erheblichem Aufwand zu verwirklichen.In the case of known valve systems, this takes place through appropriate training of the flow channel consisting of the piston skirt and the cylinder interior Compensation of the flow force by reversing the flow. The physical relationships within the flow channel are very complex and only allow an approximation to the desired properties. Furthermore is the required geometric shape to be realized on the piston and in particular in the cylinder interior only with considerable effort.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung für Ventilsysteme zu schaffen, die einfach herzustellen ist und mit der eine weitgehende Aufhebung der auf den Steuerkolben wirkenden Axialkräfte erreicht wird, die durch Strömungskräfte verursacht werden, welche durch das Druckur- ittel auftreten. The invention is based on the object of creating a device for valve systems that is simple to manufacture and with which the axial forces acting on the control piston, which are caused by flow forces which occur through the pressure valve, are largely eliminated .

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß im Strömungskanal des Steuerkolbens ein Stauteil angeordnet ist, der ein Auftreffen des in dem Strömungsraum des Steuerkolbens einströmenden Druckmittels auf die den Strömungsraum abgrenzende Fläche verhindert. In Veiterbildung der Erfindung ist Torgesehen, daß im Btröoungskanal den Steuerkolbens mehrere Stauteile eingefügt sind. Gemäß einer anderen Veiterbildung ist vorgesehen, daß die zwischen Steuerkolben und Stauteil und zwischen den Stauteilen selbst gebLldeten Drosselspalten veränderbar sind.According to the invention, the object is achieved in that a dam is arranged in the flow channel of the control piston, which prevents the pressure medium flowing into the flow chamber of the control piston from impinging on the surface delimiting the flow chamber. In Veiter formation of the invention is Torge consider that a plurality of storage parts are inserted in Btröoungskanal the control piston. According to another development, it is provided that the throttle gaps formed between the control piston and the damper part and between the damper parts themselves can be changed.

Eine besonders zweckmäßige Ausgestaltung der Erfindung besteht darin, daß die Steuerkanten am Übergang zum Stauraum Abschrägungen aufweisen. A particularly useful embodiment of the invention is that the control edges have bevels at the transition to the storage space.

In der Zeichnung ist schematisch ein Ausführungsbeispiel des Er-findungsgegenstandes dargestellt. An exemplary embodiment of the subject matter of the invention is shown schematically in the drawing.

Es zeigen: Fig. 1 einen Längsschnitt durch einen Steuerkolben mit Führungshülse eines Ventils, Fig. 2 einen Schnitt 1-B der Fig. 1.The figures show: FIG. 1 a longitudinal section through a control piston with a guide sleeve of a valve, FIG. 2 a section 1-B of FIG. 1.

In Fig. l ist mit 2 eine Steuerhülse bezeichnet, in der ein mit mehreren Stegen 4 bestückter Steuerkolben 3 gleitet. In der Steu- erhülse 2 sind Einlaßöffnungen 6 und Auslaßöffnungen 7 eingear- beitet, durch die Druckmittel in entsprechender Richtung fließen. Ein Stauteil 1 ist ,in der Auslaßöffnung 7 eingeführt und teilt den zwischen Steuerhülse 2 und Steuerkolben 3 gebildeten Strö- mungsraum in einen Stauraum 8 und einen Zylinderraum 9. In Fig. 1, 2 designates a control sleeve in which a control piston 3 equipped with several webs 4 slides. In the tax erhülse 2 inlet openings 6 and outlet openings 7 are eingear- beitet, flow through the pressure medium in a corresponding direction. A retaining part 1 is inserted into the outlet opening 7 and divides the flow space formed between the control sleeve 2 and the control piston 3 into a retaining space 8 and a cylinder space 9.

Durch diese Anordnung wird die dynamische ffrattkomponänte 72 am Stauteil 1 abgefangen und kann nicht auf die Fläche 11 wirken. Bei nicht vorhandenem Stauteil wirkt die dynamische 1Grattkomponente F2 auf die Fläche 11 und verschiebt somitden Steuerkolben 3 in Schliegrichtung. Bei Verwendung einer Stanteils wird der durch Aufprallen der Strömung au! die gegenberliegends @lxabe des ste- ges auftretende Energieverlust vermieden bzw. erheblich herabgesetzt. As a result of this arrangement , the dynamic fratt component 72 is intercepted on the retaining part 1 and cannot act on the surface 11. If there is no back-up part, the dynamic 1Gratt component F2 acts on the surface 11 and thus moves the control piston 3 in the closing direction. When using a stiffener , the impact of the flow will increase the! the energy loss that occurs on the opposite side is avoided or significantly reduced.

Durch entsprechende Formgebung der Steuerkante 5 an der Fläche 10 am Übergang zum Stauraum 7 kann eine Kraftkomponente F1 in Öffnungsrichtung erzeugt werden. Der Zylinderraum 9 hinter dem Stauteil 1 wirkt hierbei noch dämpfend auf das System.By appropriately shaping the control edge 5 on the surface 10 At the transition to the storage space 7, a force component F1 can be generated in the opening direction will. The cylinder space 9 behind the retaining part 1 still has a damping effect the system.

In Fig. 2 sind mehrere in dem Steuerkolbenraum eingefügte Stauteile 1 dargestellt. Drosselspalten 13 befinden sich zwischen den einzelnen Stauteilen 1 und dem Steuerkolben 3. Die Größe der reduzierten Kraftkomponente F2 auf die Fläche 11 kann durch entsprechende Dimensionierung der Drosselspalten 12 und 13 den jeweiligen Verhältnissen angepaßt werden. In Fig. 2, a plurality of damming parts 1 inserted in the control piston chamber are shown. Throttle gaps 13 are located between the individual retaining parts 1 and the control piston 3. The size of the reduced force component F2 on the surface 11 can be adapted to the respective conditions by appropriate dimensioning of the throttle gaps 12 and 13.

Die erfindungsgemäße Vorrichtung ist fertigungstechnisch einfach und bietet die Möglichkeit einer wirtschaftlich günstigen Verwirklichung der Beeinflussung axial wirkender Strömungskräfte auf Steuerkolben. Eine derartige Vorrichtung kann auch in bsher bekannte Systeme eingesetzt werden, so daß diese Systeme wesent- lich in ihrer Leistungsfähigkeit verbessert und im Leistungsbe- reich erweitert werden können. The device according to the invention is simple to manufacture and offers the possibility of an economically favorable implementation of influencing axially acting flow forces on control pistons. Such a device can also be used in previously known systems, so that these systems can be significantly improved in terms of their performance and their performance range can be expanded.

Claims (1)

P a t e n t a n s p r ü c h e 1.) Vorrichtung zur Beeinflussung axial wirkender Strömungskräfte an Steuerkolben in druckmittelgesteuerten oder druckmittelsteuernden Ventilsystemen, d a d u r c h g e k e n n -z e i c h n e t , daß im Strömungskanal des Steuerkolbens (3) ein Stauteil (1) angeordnet ist, der ein Auftreffen des in den Strömungsraum des Steuerkolbens (3) einströmenden Druckmittels auf die den Strömungsraum abgrenzende Flüche (12) verhindert: 2.) Vorrichtung nach Anspruch 1, d a d u r c h g e -k e n n z e i c h n e t , daß im Strömungskanal des Steuerkolbens (3) mehrere Stauteile (1) eingefügt sind. 3.) Vorrichtung nach den Ansprüchen l oder 2, d a d. u r c h g e k e n n z e i c h n e t , daß die zwischen Steuerkolben (3) und Stauteil (1) und zwischen den Stauteilen (1) selbst gebildeten Drosselspalten (12 bzw. 13)°veränderbar sind. 4.) Vorrichtung nach einem der Ansprüche 1 bis 3, d a = d u r c h g e k e n n z e i c h n e t , daß die Steuerkanten (5) am Übergang zum Stauraum (8) Abschrügungen aufweisen. Patent claims 1.) Device for influencing axially acting flow forces on control pistons in pressure-medium-controlled or pressure-medium-controlling valve systems, dadurchgekenn -z eichnet that in the flow channel of the control piston (3) a dam (1) is arranged, which is an impact of the in the flow chamber of the Control piston (3) prevents pressure medium flowing in on the curses (12) delimiting the flow space: 2.) Device according to claim 1, characterized in that several damming parts (1) are inserted in the flow channel of the control piston (3). 3.) Device according to claims l or 2, since d. Characterized in that the throttle gaps (12 or 13) formed between the control piston (3) and the retaining part (1) and between the retaining parts (1) themselves can be changed. 4.) Device according to one of claims 1 to 3, da = characterized in that the control edges (5) at the transition to the storage space (8) have chamfers .
DE19691775876 1967-09-08 1969-07-31 Device for influencing axially acting flow forces on control pistons Pending DE1775876A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19671650559 DE1650559B1 (en) 1967-09-08 1967-09-08 Control device for pressure medium-controlled valve systems
DE19691775876 DE1775876A1 (en) 1967-09-08 1969-07-31 Device for influencing axially acting flow forces on control pistons
DE19691952811 DE1952811A1 (en) 1967-09-08 1969-10-21 Device for influencing axially acting flow forces on control pistons

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DESC041271 1967-09-08
DE19691775876 DE1775876A1 (en) 1967-09-08 1969-07-31 Device for influencing axially acting flow forces on control pistons
DE19691952811 DE1952811A1 (en) 1967-09-08 1969-10-21 Device for influencing axially acting flow forces on control pistons

Publications (1)

Publication Number Publication Date
DE1775876A1 true DE1775876A1 (en) 1971-10-07

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ID=33424263

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Application Number Title Priority Date Filing Date
DE19691775876 Pending DE1775876A1 (en) 1967-09-08 1969-07-31 Device for influencing axially acting flow forces on control pistons
DE19691952811 Pending DE1952811A1 (en) 1967-09-08 1969-10-21 Device for influencing axially acting flow forces on control pistons

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Application Number Title Priority Date Filing Date
DE19691952811 Pending DE1952811A1 (en) 1967-09-08 1969-10-21 Device for influencing axially acting flow forces on control pistons

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DE (2) DE1775876A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1226401B (en) * 1961-05-12 1966-10-06 Karl Gerlach Process for reconditioning worn railway rails by non-cutting post-profiling of the rail head
DE2949231A1 (en) * 1979-12-07 1981-06-11 G.L. Rexroth Gmbh, 8770 Lohr PRESSURE, IN PARTICULAR PRESSURE REDUCING VALVE
DE102008015506A1 (en) 2008-03-25 2009-10-01 Robert Bosch Gmbh Valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1226401B (en) * 1961-05-12 1966-10-06 Karl Gerlach Process for reconditioning worn railway rails by non-cutting post-profiling of the rail head
DE2949231A1 (en) * 1979-12-07 1981-06-11 G.L. Rexroth Gmbh, 8770 Lohr PRESSURE, IN PARTICULAR PRESSURE REDUCING VALVE
DE102008015506A1 (en) 2008-03-25 2009-10-01 Robert Bosch Gmbh Valve

Also Published As

Publication number Publication date
DE1952811A1 (en) 1971-04-29

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