EP2220381B1 - Mécanisme hydraulique à soupape - Google Patents

Mécanisme hydraulique à soupape Download PDF

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Publication number
EP2220381B1
EP2220381B1 EP20080802278 EP08802278A EP2220381B1 EP 2220381 B1 EP2220381 B1 EP 2220381B1 EP 20080802278 EP20080802278 EP 20080802278 EP 08802278 A EP08802278 A EP 08802278A EP 2220381 B1 EP2220381 B1 EP 2220381B1
Authority
EP
European Patent Office
Prior art keywords
valve
connection
pressure
control
pressure compensator
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.)
Not-in-force
Application number
EP20080802278
Other languages
German (de)
English (en)
Other versions
EP2220381A1 (fr
Inventor
Winfried RÜB
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.)
Hydac Filtertechnik GmbH
Original Assignee
Hydac Filtertechnik 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 Hydac Filtertechnik GmbH filed Critical Hydac Filtertechnik GmbH
Publication of EP2220381A1 publication Critical patent/EP2220381A1/fr
Application granted granted Critical
Publication of EP2220381B1 publication Critical patent/EP2220381B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool 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
    • 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
    • F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
    • F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves
    • F15B13/0418—Load sensing elements sliding within a hollow main valve spool
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87193—Pilot-actuated
    • Y10T137/87209—Electric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages

Definitions

  • the entire space in the form of the through-channel 40 in the lower part of the middle housing 38 is under pump pressure P and from this space each leads a channel line to the cavity axis of each assignable spool 16 in addition to the ring channels that lead to the Nutzanêtn A and B.
  • the two spool 16 are constructed identically and take in coaxial arrangement an internal, the valve diaphragm upstream pressure compensator 18, which are also identical in construction. Like in the Fig.2 shown, in neutral position, the spool 16 are held by fixed stops housing and their respective working spring (compression spring 22) in position.
  • the working spring (compression spring 22) is supported on the one hand against the housing 34 of the valve and on the other hand against a screw plug 50 which is screwed firmly to the spool 16. In the pertinent initial or neutral position of the respective spool 16 separates the working port A or B from the pump port P.
  • the pertinent longitudinal grooves 66 of which in the Figure 3 dashed lines only one is shown extending in the direction R channel to the control edge of the control piston and are - viewed at the periphery - between the radial openings and passages.
  • the respective longitudinal groove 66 has permanent connection with the fourth radial opening 57 in the control slide 16.
  • the pertinent Leksnut für provides the LS reporting connection from the working connection in the spring chamber with the compression spring 24 of the pressure compensator 18.
  • the connection point 57 corresponds to the connection point 57 as shown in the Fig.1
  • the branch point LS B and the opening 56 on the one input control side of the pressure compensator 18 forms the signaling connection LS B
  • the above-described LS pressure LS B represents the sensing connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Servomotors (AREA)
  • Safety Valves (AREA)

Claims (10)

  1. Installation hydraulique à vanne, notamment régulateur de débit LS, comprenant un agencement (10) de raccordement de fluide, comportant au moins
    - un raccord (P) d'alimentation en pression,
    - un raccord (R) de retour,
    - un raccord (LS) loadsensing de section,
    - deux raccords (P' A et P' B), de commande,
    - deux raccords (A, B) utiles et
    - au moins un dispositif (14) de commande déplaçable pour commander au moins en partie des raccords de l'agencement (10) de raccordement de fluide,
    dans laquelle le dispositif (14) respectif de commande a un tiroir (16) de commande, qui est associé à chaque raccord (A, B) utile et en amont duquel, dans la direction du fluide allant vers le raccord (A, B) utile respectif, est montée une bascule (18) manométrique, la bascule (18) manométrique pouvant. être commandée par une pression LS (LS A, LS B) qui, en même temps est amenée à un côté (26) de raccordement du tiroir (16) de commande respectif, dans laquelle respectivement une pression (P'A, P'B) de raccord de commande prélevée entre le tiroir (16) de commande, et la bascule (18) manométrique agissant en sens contraire de la pression LS (LS A, LS B), commande la bascule (18) manométrique, caractérisée en ce que des canaux annulaires conduisant les pressions LS (LS A, LS B) sont reliés à une soupape (30) à deux voies, qui sépare l'une de l'autre les deux pressions LS (LS A, LS B).
  2. Installation à vanne suivant la revendication 1, caractérisée en ce que la balance (18) manométrique est intégrée au sein du tiroir (16) de commande et ce qu'à la fois la balance (18) manométrique et le tiroir (16) de commande sont guidés, avec possibilité de coulisser longitudinalement, suivant un mouvement relatif l'un par rapport à l'autre dans un corps (34) de vanne.
  3. Installation à vanne suivant la revendication 1 ou 2, caractérisée en ce qu'à la fois la bascule (18) manométrique et le tiroir (16) de commande sont maintenus en une position de départ en étant centrés par un ressort.
  4. Installation à vanne suivant la revendication 3, caractérisée en ce qu'un autre côté (28) de raccordement du tiroir (16) de commande est raccordé au raccord (R) de retour qui est guidé sensiblement suivant un axe médian dans le corps (34) de vanne et qui s'étend, dans la position de départ du dispositif (14) de commande, entre les paires opposées de tiroir (16) de commande avec bascule (18) manométrique.
  5. Installation à vanne suivant l'une des revendications 1 à 5, caractérisée en ce que la soupape (30) à deux voies conduit la plus haute des deux pressions LS (LS, LS A, LS B) à un clapet anti-retour.
  6. Installation à vanne suivant l'une des revendications 1 à 5, caractérisée en ce qu'un raccord (A, B) utile est raccordé fluidiquement au tiroir (16) de commande.
  7. Installation à vanne suivant l'une des revendications 1 à 6, caractérisée en ce qu'à la fois le tiroir (16) de commande et la bascule (18) manométrique ont des pistons creux, qui passent l'un dans l'autre et qui sont munis au moins en partie d'ajours (52, 54, 56, 57) pour du fluide ainsi que de passages (60, 62, 64) pour du fluide et ce qu'une partie desdits ajours pour du fluide ou passages pour du fluide forment un raccord (LS A, LS B) de détection et un raccord (LS A1, LS B1) d'indication.
  8. Installation à vanne suivant la revendication 7, caractérisée en ce que le raccord (LS A, LS B) de détection et le raccord (LS A1, LS B1) d'indication sont en liaison entre eux au moyen d'une rainure (66) longitudinale.
  9. Installation à vanne suivant l'une des revendications 1 à 8, caractérisée en ce que la bascule (18) manométrique est maintenue par rapport au tiroir (16) de commande pouvant être associé au moyen d'un dispositif (58) anti-torsion.
  10. Installation à vanne suivant l'une des revendications 1 à 9, caractérisée en ce qu'il est prévu, comme partie du corps (34) de vanne, un canal (40) de passage servant de répartiteur, qui, raccordé au raccord (P) de pompe, alimente le dispositif (14) de commande en fluide.
EP20080802278 2007-11-14 2008-09-17 Mécanisme hydraulique à soupape Not-in-force EP2220381B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710054134 DE102007054134A1 (de) 2007-11-14 2007-11-14 Hydraulische Ventilvorrichtung
PCT/EP2008/007750 WO2009062564A1 (fr) 2007-11-14 2008-09-17 Mécanisme hydraulique à soupape

Publications (2)

Publication Number Publication Date
EP2220381A1 EP2220381A1 (fr) 2010-08-25
EP2220381B1 true EP2220381B1 (fr) 2014-06-18

Family

ID=40220677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080802278 Not-in-force EP2220381B1 (fr) 2007-11-14 2008-09-17 Mécanisme hydraulique à soupape

Country Status (5)

Country Link
US (1) US8479769B2 (fr)
EP (1) EP2220381B1 (fr)
JP (1) JP5462177B2 (fr)
DE (1) DE102007054134A1 (fr)
WO (1) WO2009062564A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009021103A1 (de) * 2009-05-13 2010-11-18 Hydac Filtertechnik Gmbh Hydraulische Ventilvorrichtung
DE102009052257A1 (de) * 2009-11-06 2011-05-12 Claas Industrietechnik Gmbh Ventilbaugruppe
DE102010051690A1 (de) * 2010-11-17 2012-05-24 Hydac Filtertechnik Gmbh Hydraulische Ventilvorrichtung
FR2999623B1 (fr) * 2012-12-18 2015-02-27 Fluid System Distributeur hydraulique a balance de pression integree et engin motorise equipe d'un tel distributeur
DE102017200418A1 (de) * 2017-01-12 2018-07-12 Robert Bosch Gmbh Ventilbaugruppe zur Zweikreis-Summierung
JP7028760B2 (ja) * 2018-12-28 2022-03-02 Ckd株式会社 スプール弁
EP3901501A1 (fr) * 2020-04-26 2021-10-27 Hamilton Sundstrand Corporation Servovanne
CN112032135A (zh) * 2020-09-21 2020-12-04 徐工集团工程机械股份有限公司建设机械分公司 一种起重机扩展阀组及液压***
JP2023135264A (ja) * 2022-03-15 2023-09-28 川崎重工業株式会社 バルブブロック、及びそれを備えるマルチコントロール弁装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984979A (en) * 1973-07-06 1976-10-12 Tadeusz Budzich Load responsive fluid control valves
US3911942A (en) * 1974-03-28 1975-10-14 Gen Signal Corp Compensated multifunction hydraulic system
US4187877A (en) * 1975-01-13 1980-02-12 Commercial Shearing Inc. Compensated work port fluid valves
JPS5997302A (ja) * 1982-11-25 1984-06-05 Kayaba Ind Co Ltd 油圧制御回路
US4617798A (en) * 1983-04-13 1986-10-21 Linde Aktiengesellschaft Hydrostatic drive systems
DE4036720C2 (de) * 1990-11-17 2001-09-13 Linde Ag Steuerschaltung für die lastunabhängige Aufteilung eines Druckmittelstromes
JP3289852B2 (ja) * 1993-08-12 2002-06-10 株式会社小松製作所 流量応援用方向制御弁
DE4416285A1 (de) * 1994-05-07 1995-11-09 Bosch Gmbh Robert Elektropneumatische Ventileinrichtung
DE19646445A1 (de) * 1996-11-11 1998-05-14 Rexroth Mannesmann Gmbh Ventilanordnung
US5715865A (en) * 1996-11-13 1998-02-10 Husco International, Inc. Pressure compensating hydraulic control valve system
US5791142A (en) * 1997-03-27 1998-08-11 Husco International, Inc. Hydraulic control valve system with split pressure compensator
DE19929024A1 (de) * 1999-06-25 2000-12-28 Bosch Gmbh Robert Auf einem Fahrzeug anordenbare Einrichtung zur Dosierung und Verteilung von Streugut
US7100639B2 (en) 2001-03-21 2006-09-05 Bucher Hydraulics Gmbh Control valve
WO2002088550A1 (fr) * 2001-04-17 2002-11-07 Bucher Hydraulics Gmbh Tiroir a balance manometrique situee a l'interieur
DE10135298A1 (de) * 2001-07-24 2003-02-13 Bosch Rexroth Ag Ventilanordnung
DE10334056A1 (de) * 2003-07-25 2005-02-10 Bosch Rexroth Ag Wegeventil
DE102005022891A1 (de) 2005-04-05 2006-10-12 Bosch Rexroth Aktiengesellschaft Hydraulische Steueranordnung und Steuerblock
DE102005033222B4 (de) 2005-07-15 2012-05-16 Bosch Rexroth Aktiengesellschaft LUDV-Ventilanordnung

Also Published As

Publication number Publication date
JP5462177B2 (ja) 2014-04-02
WO2009062564A1 (fr) 2009-05-22
US8479769B2 (en) 2013-07-09
EP2220381A1 (fr) 2010-08-25
US20100307621A1 (en) 2010-12-09
JP2011503479A (ja) 2011-01-27
DE102007054134A1 (de) 2009-05-20

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