EP0900963A1 - Soupape à siège - Google Patents
Soupape à siège Download PDFInfo
- Publication number
- EP0900963A1 EP0900963A1 EP98108827A EP98108827A EP0900963A1 EP 0900963 A1 EP0900963 A1 EP 0900963A1 EP 98108827 A EP98108827 A EP 98108827A EP 98108827 A EP98108827 A EP 98108827A EP 0900963 A1 EP0900963 A1 EP 0900963A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seat
- closing
- sleeve
- seat valve
- closing member
- 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.)
- Granted
Links
Images
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
- F15B13/0405—Valve members; Fluid interconnections therefor for seat valves, i.e. poppet 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
- F15B13/044—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
- F15B2013/041—Valve members; Fluid interconnections therefor with two positions
Definitions
- the invention relates to a seat valve specified in the preamble of claim 1 Art.
- Such seat valves known from prior use in practice, as a rule Black / white valves have a switching magnet as the adjustment drive, which Locking element adjusted against a spring.
- 2/2-way seat valve are the two ways from each other in the locking position of the locking member Cut; in the through position of the closing member, however, with each other connected.
- the lock for holding the locking element in the shut-off position is formed by the switching magnet and the spring.
- a change seat valve is known, the two closing members are coupled via a pivotally mounted connecting lever in the housing.
- the connecting lever carries a control cam with a vertex.
- One in Ball with linear movement and loaded by a compression spring rests on the control cam.
- the locking is structurally complex and stressed lots of installation space.
- the adjustment shaft carries of the closing member a ball, which during the opening or closing movement of the Closing member between two spring-loaded, counteracting sliding elements is squeezed through.
- the invention has for its object a seat valve of the type mentioned to create that structurally simple, inexpensive to manufacture and with low energy consumption adjustable and yet lockable with high force.
- the adjustment drive can remain ineffective or be switched off because the latching the closing member in the shut-off position holds. Because with a seat valve, a leak-free shut-off position has a certain shut-off position holding force required, the mechanical, positive and non-positive Then the catch will not be in a weak or relaxed position, but in an intermediate position in which they hold the locking member with the blocking position presses and holds against the valve seat. The holding force is determined by the frictional connection the latching in interaction with the form closure.
- the latch leaves integrate themselves into the seat valve in a structurally simple manner is simple and inexpensive. Since the adjustment drive only for initiating one Adjustment is needed, the seat valve can be used with little energy and therefore adjust with a simple and inexpensive adjustment drive.
- angles of approximately 45 ° are according to claim 3 for both adjustment directions achieved essentially symmetrical force ratios.
- the lock from the working area of the locking member relocated.
- the straight passive latching does not produce a disruptive counterforce for active locking.
- the closing member is in the adjustment supports the two catches in the respective adjustment direction. The adjustment drive only needs to generate the adjustment pulse.
- the manufacture and assembly of the seat valve are simplified.
- the latching can be accommodated well, without such proven training concepts Affect seat valves.
- the latching is an adjusting auxiliary drive for the closing element, which largely relieves the actual adjustment drive.
- a seat valve S in Fig. 1 e.g. a 2/2-way seat valve, has a in a housing 1 Venitilsitz 2 to cooperate with a locking member 3, which deals with a seat 3a can be placed on the valve seat 2.
- the valve seat 2 is between flow paths A, C provided. In the shown shut-off position of the seat valve S is the Connection between paths A, C broken.
- an adjustment drive 5, 7 is provided which with the closing member 3 is connected, for example, via the elements 4, 6.
- An axial force holds in the direction of the dashed arrow or a shut-off position holding scratch Z. the closing member 3 in the shut-off position.
- a force in the direction of the extended, upward arrow moves the closing member 3 to the open position.
- the adjustment drive 5, 7, which is, for example, in two parts, can either be operated manually operate or consists of switching magnets or is operated by a hydraulic or pneumatic pilot control.
- the seat valve S is in the shut-off position shown by a mechanical, form and scratch-tight latching R held.
- An element 8 is in the latching two oppositely sloping cam surfaces N1 and N2, e.g. provided on part 4.
- the cam surfaces N1 and N2 are acted upon by a cam member F, which is loaded by a spring G.
- the cam member F produces thanks to the shape and Force closure and the force of the spring G, the blocking position holding force Z for the Locking member 3, since the locking R of the locking member 3, at least in the shut-off position, is prevented from reaching a relaxed position.
- the adjustment drive 5, 7 actuated in the direction of the upward-pointing, drawn arrow, then the latch R is released and the cam follower F from the cam surface N1 brought to the cam surface N2, whereby the closing member 3 in the open position held and then optionally with an upward Force is applied.
- the adjustment drive 5, 7 is because the latching R as an adjustment auxiliary drive acts in both adjustment directions, only required as an adjustment pulse generator I2, I1, to initiate an adjustment of the seat valve S, which then runs automatically, until a stable position of the closing element is reached again. That is how it is Seat valve S is bistable even without the involvement of the adjustment drive, i.e. that it is in the respective locked position of the locking member remains until new, in the opposite direction acting adjustment pulse is initiated.
- a 3/2-way seat valve S is shown in a symbolic representation, which alternately creates the connection between two paths C, B or C, A and thereby the connection to the third path A or B.
- Two are used as adjusting drives 5, 7
- Switching magnets with opposite directions of action which may only be adjustable pulse generators Form I1 and I2 because the poppet valve with a mechanical catch R is equipped, which in the two shut-off positions of this seat valve S the Closing member holds with axial holding force.
- the structure of the seat valve according to FIG. 2 is indicated in FIG. 3, partly in section.
- the two switching magnets 5, 7 are then energized via connections 9, if the seat valve S is to be adjusted.
- the switching magnets are adjustable pulse generators and can be switched off or de-energized after the adjustment.
- the housing 1 In the housing 1 is in a housing bore 10 equipped with the locking R cartridge-like insert 11 housed, which contains the closing member 3, which means the switching magnet M1, M2 of the adjustment drive 5, 7 can be moved back and forth.
- the stroke of the seat valve is indicated by X and is relatively small. For example, it is only a few 1/10 mm, e.g. 0.5 mm.
- the elements 4, 6 are plungers with which the Switching magnet transmit the respective adjustment pulse to the closing element 3.
- Fig. 4 the cartridge-shaped insert 11 is enlarged in the housing bore 10 and shown in longitudinal section.
- the closing member 3, which in the embodiment shown is arranged on an adjustment shaft 3 ', in a two-part sleeve 12a, 12b linearly adjusted.
- a valve seat 2a, 2b is formed in each sleeve part 12a, 12b.
- the two valve seats 2a, 2b mutually cooperate with the seat surfaces 3a1 and 3a2 of the closing member 3 in order (see symbol in FIG.
- the catch R is contained in the cartridge-shaped insert 11.
- the mess 3 two axially spaced circumferential grooves 19 are formed, which are opposite to each other have inclined groove flanks 21 and inner free spaces 20.
- the groove flanks 21 form the cam surfaces N1, N2, which in the embodiment shown as a rotationally symmetrical conical surfaces to the axis of the closing member 3 are.
- a plurality of balls 16 serve as cam members F of the catch R, which are axially arranged in two spaced radial bore rows 15 in the sleeve part 12a radially movable are.
- a cylindrical circumferential section may lie between the two cam surfaces N1, N2 with a slightly reduced diameter of the adjustment shaft 3 '. Aligned on the radial bore rows 15 are two outwards in the sleeve part 12a Open circumferential grooves 14 are formed, in which the balls 16, ring-shaped Spring elements G are arranged.
- an O-ring 22 which is knotted into a circumferential groove 13 and is under radial prestress, so that the balls 16 acted upon by it against the adjustment shaft 2 'are pressed inwards.
- the O-rings 22 is a pressure sleeve 17 with a reduced diameter End portion 13 of the sleeve part 12a is pushed, on which the O-rings 22nd support inside, so that they with their tension and compression Act.
- an inner end of the pressure sleeve 17 is included a funnel-shaped widening 18 is formed.
- the angle ⁇ , which each cam surface N1, N2 encloses with the axis of the closing member 3, is, for example, 45 °.
- the Hardness or compression of the O-rings 22 and / or the angle ⁇ of each cam surface N1, N2 it is possible to use the same blocking position holding forces or different ones Locking position holding forces Z to be set. So that the latching the respective Shut-off position holding force can be the axial distance between the cam surfaces N1, N2 so matched to the stroke of the closing member 3 that in the respective Blocking position, the balls 16 in a radial bore row their assigned Fully apply cam surface while the balls of the other radial bore row sit on the cylindrical outer circumference of the adjustment shaft 3 '. With this Voting is also achieved that the locking R when adjusting the closing member helps between the two shut-off positions, so that the adjustment drive only needs to generate an adjustment pulse and then at least the actual adjustment largely runs automatically.
- the balls 16 or other cam members F could also be arranged in the adjustment shaft 3 ' are provided when the cam surfaces N1, N2 outside in the sleeve part 12a are.
- a design with radially adjustable cam surfaces and radial firmly supported cam links would also be possible.
- the latching (as indicated schematically in Fig. 1) with only one cam member or a cam member circumferential row and two cam surfaces N1, N2.
- the cooperating surfaces (cam surfaces and cam members) are here with the Pairing "diagonally flat / spherical" shown. Other geometric pairings are also possible to achieve certain force curves when working the latching.
- the seat valve is compact, reliable and inexpensive to manufacture, and simple mountable.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Lift Valve (AREA)
- Magnetically Actuated Valves (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29715748U | 1997-09-02 | ||
DE29715748U DE29715748U1 (de) | 1997-09-02 | 1997-09-02 | Sitzventil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0900963A1 true EP0900963A1 (fr) | 1999-03-10 |
EP0900963B1 EP0900963B1 (fr) | 2003-02-26 |
Family
ID=8045433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98108827A Expired - Lifetime EP0900963B1 (fr) | 1997-09-02 | 1998-05-14 | Soupape à siège |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0900963B1 (fr) |
DE (2) | DE29715748U1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019202052B4 (de) * | 2019-02-15 | 2022-09-01 | Hawe Hydraulik Se | Wegesitzventil |
DE102020003973A1 (de) | 2020-07-02 | 2022-01-05 | Hydac Fluidtechnik Gmbh | Ventilvorrichtung |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB313653A (en) | 1928-03-16 | 1929-06-17 | Shell Mex Ltd | Improvements in or relating to taps for controlling the supply of a fluid |
DE1005794B (de) | 1955-01-25 | 1957-04-04 | Kissing & Moellmann Armaturenf | Wechselventil |
DE1029639B (de) | 1955-11-11 | 1958-05-08 | Kromschroeder Ag G | Handbetaetigtes Schnellschlussventil |
US3602245A (en) * | 1970-02-26 | 1971-08-31 | Abex Corp | Universal detent positioner |
DE2407136A1 (de) * | 1974-02-15 | 1975-08-21 | Rexroth Gmbh G L | Wegeventil mit raste zur festlegung der schaltstellungen des steuerkolbens |
US4796860A (en) | 1987-10-16 | 1989-01-10 | Eaton Corporation | Valve spool detent |
EP0492242A2 (fr) | 1990-12-28 | 1992-07-01 | Firma J. Eberspächer | Vanne électromagnétique pour commander le débit |
-
1997
- 1997-09-02 DE DE29715748U patent/DE29715748U1/de not_active Expired - Lifetime
-
1998
- 1998-05-14 EP EP98108827A patent/EP0900963B1/fr not_active Expired - Lifetime
- 1998-05-14 DE DE59807291T patent/DE59807291D1/de not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB313653A (en) | 1928-03-16 | 1929-06-17 | Shell Mex Ltd | Improvements in or relating to taps for controlling the supply of a fluid |
DE1005794B (de) | 1955-01-25 | 1957-04-04 | Kissing & Moellmann Armaturenf | Wechselventil |
DE1029639B (de) | 1955-11-11 | 1958-05-08 | Kromschroeder Ag G | Handbetaetigtes Schnellschlussventil |
US3602245A (en) * | 1970-02-26 | 1971-08-31 | Abex Corp | Universal detent positioner |
DE2407136A1 (de) * | 1974-02-15 | 1975-08-21 | Rexroth Gmbh G L | Wegeventil mit raste zur festlegung der schaltstellungen des steuerkolbens |
US4796860A (en) | 1987-10-16 | 1989-01-10 | Eaton Corporation | Valve spool detent |
EP0492242A2 (fr) | 1990-12-28 | 1992-07-01 | Firma J. Eberspächer | Vanne électromagnétique pour commander le débit |
EP0492242B1 (fr) * | 1990-12-28 | 1996-06-05 | Firma J. Eberspächer | Vanne électromagnétique pour commander le débit |
Also Published As
Publication number | Publication date |
---|---|
EP0900963B1 (fr) | 2003-02-26 |
DE29715748U1 (de) | 1997-11-06 |
DE59807291D1 (de) | 2003-04-03 |
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