EP0924439B1 - Soupape de commande hydraulique - Google Patents

Soupape de commande hydraulique Download PDF

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Publication number
EP0924439B1
EP0924439B1 EP98121629A EP98121629A EP0924439B1 EP 0924439 B1 EP0924439 B1 EP 0924439B1 EP 98121629 A EP98121629 A EP 98121629A EP 98121629 A EP98121629 A EP 98121629A EP 0924439 B1 EP0924439 B1 EP 0924439B1
Authority
EP
European Patent Office
Prior art keywords
spring
control valve
hydraulic control
housing
valve according
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.)
Expired - Lifetime
Application number
EP98121629A
Other languages
German (de)
English (en)
Other versions
EP0924439A1 (fr
Inventor
Eckard Schuttenberg
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
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0924439A1 publication Critical patent/EP0924439A1/fr
Application granted granted Critical
Publication of EP0924439B1 publication Critical patent/EP0924439B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
    • 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

Definitions

  • the invention relates to a hydraulic control valve according to the preamble of claim 1, such as from US 4,238,112 has become known.
  • the known hydraulic control valve is the nose of the as Protection against rotation of a spool acting Spring plates between the walls of an inlet channel arranged. Since the inlet channel is made of fluidic Reasons must have a certain flow cross-section, and the flow area from the nose of the as Standard component designed spring plate depending on the position of the spool should remain unaffected, is the nose of the spring plate to the side walls of the Inlet channel spaced. As a result, complete rotation of the spool is excluded, however, spool rotation is within one on the width of the inlet channel and the width of the nose dependent angular range possible.
  • the hydraulic control valve according to the invention with the characterizing features of claim 1 has the advantage that every twist of the spool at simple and at the same time cost-effective assembly of the hydraulic Control valve is prevented. Because any Rotation of the control spool is prevented, it is possible, the trained on the spool Control notches to the housing chambers for the pressure medium so to be positioned at an angle so that optimal flows can be achieved during operation.
  • the anti-rotation device is effected by a spring plate known per se, whose nose is guided in a slot in a guide ring is, the guide ring by means of an additional Spring element is prevented from twisting.
  • the electromagnetic shown in Figure 1 actuatable hydraulic control valve 10 has a housing 11, on the two opposite to each other An adjusting magnet 12, 13 is arranged on each end face.
  • the Control valve 10 is designed as a directional control valve 4/3-way valve designed.
  • In the housing 11 is one through slide bore 14 is provided, in which a Control slide 15, which is the longitudinally movable control member forms, is slidably guided.
  • the control slide 15 has in other notches 16 not shown for Pressure control on.
  • the slide bore 14 has in Usually an inlet chamber 17, a first and a second Consumer chamber 18 and 19 and external, first and second return chambers 20 and 21, the latter of which communicate with each other.
  • To control the usual Connections between these chambers 17 to 21 has the Control spool 15 control notches 22, which is also a Allow fine control.
  • the opening 24 is formed outside the area of the chambers 17 to 21.
  • Around to seal the housing 11 to the outside is between the Screw-in socket 26 of the solenoid 12 and the An O-ring 27 is arranged on the inner wall of the opening 24.
  • the the end face of the end section facing the control magnet 12 23 is in operative connection with a magnetic plunger 28 of the one Arranged solenoid 12, which when energized Magnet plunger 28 and thus also the control slide 15 in Direction of the other solenoid 13 moves.
  • the assigned to the solenoid 12 Return spring 29 is supported on the one hand on the base 31 in the magnet housing 32 of the control magnet 12 centrally trained opening 33, and on the other hand against an in Area of the end section 23 arranged spring plate 34, the component of an anti-rotation device 35 for the Control spool 15 is.
  • the diameter of the return spring 29 is dimensioned so that the magnetic plunger 28 and the End portion 23 surrounds with radial play.
  • the spring plate 34 is against one by the return spring 29 Shoulder 36 of the control slide 15 pressed from the the end section 23 in the direction of the return spring 29 followed.
  • Figure 2 forms the spring-centered central position of the control slide 15 a on the side facing away from the return spring 29
  • Spring plates 34 formed, radially circumferential web 37th the housing 11 a stop for the return spring 29th out.
  • the web 37 also serves as a guide for the Control slide 15.
  • the spring plate 34 rotatably on the Arranging end section 23 has end section 23 Flattening 38 on the one with in the spring plate 34th trained opening 39 ( Figure 3) corresponds, and thus a positive connection between the spool 15 and the Spring plate 34 forms.
  • the Spring plate 34 Around the spring plate 34 and therefore also to prevent the spool 15 from rotating, the Spring plate 34 with a sleeve-shaped guide ring 40 together, the spring plate 34 on its circumference with play surrounds.
  • the guide ring 40 has a longitudinal slot 42 in one Nose 43 of the spring plate 34 engages ( Figure 3) so that the Spring plate 34 is longitudinally displaceable in the guide ring 40.
  • the Guide ring 40 is between the web 37 and one Spring element 45 arranged, which in turn from Screw-in connector 26 of the solenoid 12 is subjected to force is.
  • the diameter of the guide ring 40 is the size of the Opening 24 in the housing 11 adjusted so that the scope of the Guide ring 40 on the associated wall 46 of the opening 24 is present.
  • To balance the pressure between the two Spring spaces of the actuating magnets 12, 13 is on the outer circumference of the guide ring 40 is formed a circumferential groove 47 which by means of a feed channel indicated in FIG the corresponding groove of the other guide ring connected is.
  • the longitudinal slot 42 formed in the guide ring 40 is preferred for production reasons as a continuous Longitudinal slot 42 formed, that is, the longitudinal slot 42 extends over the entire height H of the guide ring 40.
  • the spring element 45 is made of spring steel, so it has the mode of action of a plate spring, that is, it is at allows a large frictional connection, whereby the guide ring 40 axially with great force against the Web 37 is pressed.
  • the corrugations 50 when screwing the control magnet 12 into the housing 11 between the screw socket 26, the spring element 45 and the guide ring 40 also causes a positive connection.
  • Spring element 45 can also be of other types of axial securing clamping elements, for example corrugated or curved spring washers, serrated lock washers or tooth lock washers be used. Depending on the clamping element used however, in contrast to the spring element 45, no positive locking between the individual components.
  • control slide 15 in front its final angular fixation in the control valve 10 to rotate such that by the arrangement of the Control notches 22 with respect to the chambers 17 to 21 a flow-optimized radial position of the control slide 15 is set. Then the magnet housing 32 in Control valve 10 mounted or fixed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
  • Valve Device For Special Equipments (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Control Of Transmission Device (AREA)

Claims (7)

  1. Soupape de commande hydraulique (10) avec un boítier (11), qui présente dans un perçage pour tiroir (14) un élément de commande (15) mobile longitudinalement, lequel commande au moins la liaison entre deux chambres à fluide sous pression (17 à 21) à l'aide d'au moins une section transversale de commande disposée sur l'élément de commande (15), et dans laquelle il est prévu, sur au moins un segment d'extrémité de l'élément de commande (15), un dispositif de sécurité contre la torsion (35) pour l'élément de commande (15), dispositif qui comporte une coupelle de ressort (34) présentant un nez (43), laquelle est disposée de manière résistante à la torsion sur un segment (23) de l'élément de commande (15) et sur une face frontale de laquelle agit un ressort (29) qui appuie la coupelle de ressort (34) axialement dans la direction de l'élément de commande (15),
    caractérisée en ce que
    le nez (43) de la coupelle de ressort (34) est guidé dans un évidement (42) d'un élément (40), qu'une butée axiale (36) est disposée sur une face frontale de l'élément (40) et que, sur l'autre face frontale de l'élément (40) agit un élément élastique (45) en forme de rondelle, qui pousse l'élément (40) par verrouillage de force contre la butée axiale (36).
  2. Soupape de commande hydraulique selon la revendication 1,
    caractérisée en ce que
    l'élément (40) est conçu en forme de manchon et l'évidement est conçu comme une fente (42) sur toute la hauteur (H) de l'élément (40).
  3. Soupape de commande hydraulique selon la revendication 1 ou 2,
    caractérisée en ce que
    l'élément (40) présente sur sa périphérie extérieure une rainure d'allègement périphérique (47).
  4. Soupape de commande hydraulique selon l'une des revendications 1 à 3,
    caractérisée en ce que
    la butée axiale pour l'élément est un épaulement (36) du boítier (11).
  5. Soupape de commande hydraulique selon l'une des revendications 1 à 4,
    caractérisée en ce que
    sur la face de l'élément élastique (45) située en face de l'élément (40), est disposé un boítier d'aimant (32), vissable dans le boítier (11), agissant sur la face frontale associée de l'élément élastique (45), d'un électroaimant de commande (12).
  6. Soupape de commande hydraulique selon la revendication 5,
    caractérisée en ce que
    l'élément élastique (45) présente des cannelures (50) qui produisent un verrouillage géométrique avec l'élément (40) et/ou de boítier d'aimant (32).
  7. Soupape de commande hydraulique selon l'une des revendications 1 à 6,
    caractérisée en ce que
    le dispositif de sécurité contre la torsion (35) est disposé à l'intérieur d'une zone (24) du boítier (11) séparée des chambres à fluide sous pression (17 à 21).
EP98121629A 1997-12-20 1998-11-12 Soupape de commande hydraulique Expired - Lifetime EP0924439B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19757088 1997-12-20
DE19757088A DE19757088A1 (de) 1997-12-20 1997-12-20 Hydraulisches Steuerventil

Publications (2)

Publication Number Publication Date
EP0924439A1 EP0924439A1 (fr) 1999-06-23
EP0924439B1 true EP0924439B1 (fr) 2003-10-29

Family

ID=7852883

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98121629A Expired - Lifetime EP0924439B1 (fr) 1997-12-20 1998-11-12 Soupape de commande hydraulique

Country Status (3)

Country Link
EP (1) EP0924439B1 (fr)
AT (1) ATE253178T1 (fr)
DE (2) DE19757088A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004056892A1 (de) * 2004-11-25 2006-06-01 Robert Bosch Gmbh Elektromagnetisch betätigbares Ventil, insbesondere in einer Bremsanlage eines Kraftfahrzeuges
DE102020216440A1 (de) 2020-12-22 2022-06-23 Robert Bosch Gesellschaft mit beschränkter Haftung Ventil

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2718240A (en) * 1950-11-17 1955-09-20 Parker Appliance Co Hydraulic control valve
NL90476C (fr) * 1958-10-14
US4238112A (en) * 1978-12-22 1980-12-09 Rexnord Inc. Spool spin prevention for hydraulic control valves
DE3203533A1 (de) * 1982-02-03 1983-08-04 Robert Bosch Gmbh, 7000 Stuttgart Hydraulisches einbauventil
DE3737392A1 (de) * 1987-11-04 1989-05-24 Bosch Gmbh Robert Hydraulisches steuerventil
DE4121524C2 (de) * 1991-06-28 1994-07-14 Deutsche Aerospace Airbus Schraubenverbindung

Also Published As

Publication number Publication date
ATE253178T1 (de) 2003-11-15
DE19757088A1 (de) 1999-06-24
EP0924439A1 (fr) 1999-06-23
DE59810021D1 (de) 2003-12-04

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