EP1996821B1 - Agencement de soupape de regulation ludv - Google Patents

Agencement de soupape de regulation ludv Download PDF

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Publication number
EP1996821B1
EP1996821B1 EP20070703386 EP07703386A EP1996821B1 EP 1996821 B1 EP1996821 B1 EP 1996821B1 EP 20070703386 EP20070703386 EP 20070703386 EP 07703386 A EP07703386 A EP 07703386A EP 1996821 B1 EP1996821 B1 EP 1996821B1
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EP
European Patent Office
Prior art keywords
pressure
valve
arrangement according
valve arrangement
load
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.)
Active
Application number
EP20070703386
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German (de)
English (en)
Other versions
EP1996821A1 (fr
Inventor
Matthieu Desbois-Renaudin
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1996821A1 publication Critical patent/EP1996821A1/fr
Application granted granted Critical
Publication of EP1996821B1 publication Critical patent/EP1996821B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • 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
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0407—Means for damping the valve member movement
    • 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
    • F15B13/0803—Modular units
    • F15B13/0832—Modular valves
    • F15B13/0839—Stacked plate type valves
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/785—With retarder or dashpot
    • Y10T137/7851—End of valve forms dashpot chamber
    • 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
    • Y10T137/86485—Line condition change responsive release of valve
    • 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
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/8667—Reciprocating valve
    • Y10T137/86694—Piston valve
    • Y10T137/8671—With annular passage [e.g., spool]

Claims (19)

  1. Agencement de soupape LUDV comprenant une balance de pression (6), dont le coulisseau de balance de pression (80) est sollicité dans la direction d'ouverture par une pression en aval d'un diaphragme de dosage et dans la direction de fermeture par une pression de commande correspondant de préférence à la pression de charge maximale de plusieurs consommateurs, une pression de charge en aval du diaphragme de dosage pouvant être communiquée par le biais de la balance de pression (6) dans une conduite LS (46), et comprenant un dispositif de maintien de charge qui peut être amené dans une position de fermeture dans laquelle un chemin d'écoulement de fluide sous pression du consommateur au diaphragme de dosage est bloqué, caractérisé en ce que le coulisseau de balance de pression (80) est réalisé sous forme divisée avec une partie supérieure (82) et une partie inférieure (84), cette dernière étant guidée contre la partie supérieure (82), définissant avec une arête de commande de la bande de pression la section transversale d'étranglement de la balance de pression, et constituant un corps de fermeture (98) du dispositif de maintien de charge.
  2. Agencement de soupape selon la revendication 1, dans lequel le diamètre de guidage (d) entre la partie supérieure (82) et la partie inférieure (84) est inférieur au diamètre du siège de soupape (V).
  3. Agencement de soupape selon la revendication 1 ou 2, dans lequel le diamètre de guidage extérieur (D) de la partie supérieure (82) est supérieur ou égal au diamètre du siège de soupape (V).
  4. Agencement de soupape selon l'une quelconque des revendications précédentes, dans lequel la partie inférieure (84) est réalisée avec un canal de connexion (102) qui débouche dans un espace limité par la partie supérieure (82) et par la partie inférieure (84).
  5. Agencement de soupape selon l'une quelconque des revendications précédentes, dans lequel la partie supérieure (82) a une arête de commande (109), par le biais de laquelle une connexion à la conduite LS (46) peut être commandée pour s'ouvrir.
  6. Agencement de soupape selon les revendications 4 et 5, dans lequel l'arête de commande (109) est formée par un alésage traversant (108) de la partie supérieure (82), dans lequel débouche un alésage axial (106) connecté hydrauliquement à l'espace (104).
  7. Agencement de soupape selon l'une quelconque des revendications précédentes, dans lequel un ressort (110) est disposé entre la partie supérieure et la partie inférieure (82, 84), lequel sollicite la partie inférieure (84) dans le sens de la fermeture.
  8. Agencement de soupape selon l'une quelconque des revendications précédentes, dans lequel la partie supérieure (82) est guidée dans une douille de soupape (72) ou dans une portion d'un boîtier (2).
  9. Agencement de soupape selon l'une quelconque des revendications précédentes, dans lequel un cône de soupape (98) est réalisé sur la partie inférieure (82) ou du côté du boîtier.
  10. Agencement de soupape selon la revendication 9, première variante, dans lequel la surface frontale annulaire (112) côté siège de soupape de la partie supérieure (82) est en retrait de telle sorte que la partie du cône de soupape (98) placée en aval du siège de soupape (98, 100) soit équilibrée en pression.
  11. Agencement de soupape selon la revendication 9 ou 10, dans lequel des entailles de commande de précision (114) sont réalisées dans la région du cône de soupape (98).
  12. Agencement de soupape selon l'une quelconque des revendications précédentes, dans lequel la partie inférieure (84) est guidée sur une portion périphérique extérieure (122) ou une portion périphérique intérieure (94) de la partie supérieure (82).
  13. Agencement de soupape selon l'une quelconque des revendications précédentes, dans lequel la partie inférieure (84) se termine dans une position de butée sur un fond (92) ou une surface frontale extérieure (112) de la partie supérieure (82).
  14. Agencement de soupape selon l'une quelconque des revendications précédentes, comprenant une soupape de distribution à réglage continu (4), comprenant une partie de vitesse constituant le diaphragme de dosage et une partie de direction disposée en aval de la balance de pression (6), par le biais de laquelle un chemin d'écoulement de fluide sous pression depuis la balance de pression (6) jusqu'à un raccord de consommateur (A, B) et depuis un autre raccord de consommateur (B, A) à un réservoir peut être commandé pour s'ouvrir.
  15. Agencement de soupape selon l'une quelconque des revendications précédentes, comprenant un dispositif d'amortissement (148) pour l'amortissement du déplacement du coulisseau de balance de pression (80 ; 82, 84).
  16. Agencement de soupape selon la revendication 15, dans lequel le dispositif d'amortissement est un alésage de buse (148) par le biais duquel un espace de retour (146) limité par une surface frontale arrière (86) de la partie supérieure (82) est connecté à la conduite LS (46).
  17. Agencement de soupape selon la revendication 16, dans lequel l'alésage de buse (148) est toujours ouvert vers l'espace arrière (146).
  18. Agencement de soupape selon l'une quelconque des revendications précédentes, dans lequel le cône de fermeture (98) est réalisé avec un siège coulissant.
  19. Bloc soupape comprenant plusieurs agencements de soupapes selon l'une quelconque des revendications précédentes.
EP20070703386 2006-03-13 2007-02-10 Agencement de soupape de regulation ludv Active EP1996821B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102006011463 2006-03-13
DE102006021814 2006-05-10
DE102006044195 2006-09-20
DE102006049584A DE102006049584A1 (de) 2006-03-13 2006-10-20 LUDV-Ventilanordnung
PCT/EP2007/001147 WO2007104394A1 (fr) 2006-03-13 2007-02-10 Agencement de soupape de regulation ludv

Publications (2)

Publication Number Publication Date
EP1996821A1 EP1996821A1 (fr) 2008-12-03
EP1996821B1 true EP1996821B1 (fr) 2010-10-27

Family

ID=38042762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070703386 Active EP1996821B1 (fr) 2006-03-13 2007-02-10 Agencement de soupape de regulation ludv

Country Status (6)

Country Link
US (1) US8100145B2 (fr)
EP (1) EP1996821B1 (fr)
JP (1) JP5091166B2 (fr)
AT (1) ATE486224T1 (fr)
DE (2) DE102006049584A1 (fr)
WO (1) WO2007104394A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009021831A1 (de) 2009-05-19 2010-11-25 Robert Bosch Gmbh Wegeventilanordnung
KR101852529B1 (ko) * 2010-03-17 2018-04-27 파커-한니핀 코포레이션 압력 리미터를 갖는 유압 밸브
JP5602074B2 (ja) * 2011-03-16 2014-10-08 カヤバ工業株式会社 制御弁
EP2791515B1 (fr) * 2011-12-15 2019-02-06 Eaton Corporation Tiroir de direction d'écoulement pour distributeur
EP2918853B1 (fr) * 2014-03-11 2016-03-09 Bucher Hydraulics S.p.A. Section hydraulique pour des applications de détection de charge et de multiples distributeurs hydrauliques
US10340627B2 (en) * 2014-04-30 2019-07-02 Eaton Intelligent Power Limited High pressure sealed electrical connector
US11286962B2 (en) 2017-09-29 2022-03-29 Volvo Construction Equipment Ab Flow control valve and hydraulic machine including the same
US10724553B2 (en) 2018-12-06 2020-07-28 Warner Electric Technology Llc Three position metering valve for a self-contained electro-hydraulic actuator
JP7316423B2 (ja) 2019-09-25 2023-07-27 日立建機株式会社 流量制御弁
JP7139297B2 (ja) * 2019-09-25 2022-09-20 日立建機株式会社 流量制御弁

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JPH0627522B2 (ja) * 1984-10-08 1994-04-13 カヤバ工業株式会社 油圧制御装置
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JPH07109205B2 (ja) * 1990-06-22 1995-11-22 株式会社ゼクセル 油圧制御弁
US5067389A (en) 1990-08-30 1991-11-26 Caterpillar Inc. Load check and pressure compensating valve
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JP2579202Y2 (ja) * 1992-04-10 1998-08-20 株式会社小松製作所 圧力補償弁を備えた操作弁
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Also Published As

Publication number Publication date
US8100145B2 (en) 2012-01-24
ATE486224T1 (de) 2010-11-15
EP1996821A1 (fr) 2008-12-03
WO2007104394A1 (fr) 2007-09-20
JP2009529636A (ja) 2009-08-20
DE502007005466D1 (de) 2010-12-09
DE102006049584A1 (de) 2007-09-20
US20090007976A1 (en) 2009-01-08
JP5091166B2 (ja) 2012-12-05

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