WO2010022869A1 - Soupape - Google Patents

Soupape Download PDF

Info

Publication number
WO2010022869A1
WO2010022869A1 PCT/EP2009/005936 EP2009005936W WO2010022869A1 WO 2010022869 A1 WO2010022869 A1 WO 2010022869A1 EP 2009005936 W EP2009005936 W EP 2009005936W WO 2010022869 A1 WO2010022869 A1 WO 2010022869A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
tank
bore
pressure medium
valve spool
Prior art date
Application number
PCT/EP2009/005936
Other languages
German (de)
English (en)
Inventor
Ronald Höll
Thomas Schlottner
Hans-Georg Schubert
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 WO2010022869A1 publication Critical patent/WO2010022869A1/fr

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
    • F16K11/0716—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 with fluid passages through the valve member
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves

Definitions

  • the invention relates to a valve according to the preamble of patent claim 1.
  • valves with a guided in a valve bore slide and at least annular tank pressure chambers, which are spaced along the valve bore, a complementary connecting line or a tank clip is provided in the valve housing according to the prior art between the tank pressure chambers or between associated tank channels.
  • FIG. 1 a valve housing 1 of such a valve is shown.
  • a valve spool (not shown in FIG. 1) in a valve bore 2 along its longitudinal axis 3 from a central position, a pump port P is connected to one of the ports A or B, while at the same time the respective other port A or B communicates with the adjacent tank port T A or TB is connected.
  • This is done by the connection or separation of associated substantially annularly arranged around the valve bore 2 pressure chambers 4, 5, 6, 7, 8.
  • the pressure chambers 4, 5, 6, 7, 8 of the valve shown are each via a channel 9, 10, 11, 12, 13 connected to the associated valve ports T A , A, P, B, T 8 .
  • a tank clip 14 is arranged according to the prior art as a connecting line between the two tank channels 9, 10 in the valve housing 1.
  • the tank clip 14 extends transversely to the tank channels 9, 10 (and to the other Channels 11, 12, 13) of the valve, whereby the manufacturing cost increases during the casting of the valve housing 1.
  • the invention has for its object to provide a valve whose housing can be manufactured with reduced effort.
  • the valve according to the invention has a valve slide for controlling the pressure medium connection between a plurality of connection channels and at least two spaced apart in the longitudinal direction of the valve spool tank pressure chambers, according to the invention a pressure medium flow path for connecting the tank pressure chambers within the valve spool.
  • the pressure fluid flow path is formed by a concentric or eccentric axial bore for the valve slide and at least one radial bore arranged in a circumferential wall of the valve slide, which opens into the axial bore in each case.
  • blind hole or a valve spool passing through hole is, in both variants, the frontal holes are closed by screw plugs or plugs.
  • Figure 1 is a perspective view of a housing of a valve according to the prior art with tank clip, wherein the housing is shown transparent.
  • Figure 2 is a perspective view of a valve spool according to the invention in partial section.
  • FIG. 2 shows a perspective view of a control piston or valve spool 15 according to the invention in a partially sectioned illustration.
  • the valve spool 15 is substantially rotationally symmetrical about its longitudinal axis 16 and serves to control the pressure medium connection between the terminals shown in Figure 1 T A , A, P, B, T B of the valve according to the invention.
  • the valve spool 15 is inserted into the valve bore 2 of the valve housing 1 and there axially displaced along the longitudinal axis 16 of the valve spool 15 and along the longitudinal axis 3 of the valve bore 2.
  • control edges 17a, 17b of the valve slide 15 interact with the pressure chambers 4, 5, 6, 7, 8 of the valve bore 2 (FIG. 1) in such a way that different pressure medium connections between the connections T A , A, P, B, TB are opened or closed.
  • the valve slide 15 is designed as a hollow piston. It has a through hole 18 which extends rotationally symmetrically along the longitudinal axis 16 of the valve slide 15.
  • the two end-side end sections of the through-bore 18 are each pressure-tightly sealed with one closure screw 20, 22, with the two closure screws 20, 22 partially immersed in the through-hole 18.
  • the axially out of the valve spool 15 protruding screw plugs 20, 22 also form mechanical stops for the sliding movement of the valve spool 15 in the valve bore 2 on not fixed to the housing stops. In two places on the longitudinal axis 16 of the valve spool 15 are respectively
  • Radial bore stars 24, 26 each provided with three distributed on the circumference of the valve spool 15 radial bores, of which in Figure 1 two holes 24a, 24b, 26a, 26b are shown.
  • the two points on the longitudinal axis 16 of the valve spool 15 correspond to the points which are determined by the terminals T A , T B associated tank pressure chambers 4, 5 on the longitudinal axis 3 of the valve bore 2.
  • the tank clip 14 provided according to the prior art can be dispensed with. This tank clip
  • valve 14 runs in a valve according to the prior art, not the pressure fluid flow path 24, 18, 26 according to the invention by the valve spool
  • the bore in the interior of the valve spool can also be formed by a blind hole, whereby one of the two end-side closure parts is eliminated.
  • the number, arrangement and size of the radial bores per hole star can deviate from the embodiment shown in Figure 2, provided that a pressure medium communication with the associated tank pressure chambers is maintained.
  • the hollow piston according to the invention with radial bores can be used in principle for all valve types in which a pressure fluid connection or pressure equalization between two mutually in the longitudinal direction of the valve spool or in the longitudinal direction of the valve bore spaced pressure channels or pressure chambers is provided.
  • the blind hole or through hole can also be mounted eccentrically to the longitudinal axis of the valve spool.
  • a valve with a valve spool for controlling the pressure medium connection between a plurality of connection channels, of which at least two spaced apart in the longitudinal direction of the valve spool tank channels, wherein a pressure medium flow path for connecting the tank channels within the valve spool extends.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)
  • Valve Housings (AREA)

Abstract

L'invention concerne une soupape avec un tiroir (15) pour commander la communication de fluide sous pression entre plusieurs canaux de raccordement (9-13), au moins deux chambres réservoirs de pression espacées (4, 5) se trouvant dans le sens longitudinal du tiroir (15) et une voie d'écoulement du fluide de pression (18) destinée à relier les chambres réservoirs de pression (4, 5) s'étendant à l'intérieur du tiroir (15). Grâce à cette voie d'écoulement du fluide sous pression, on peut renoncer à une liaison de compensation (boucle de réservoir) disposée, selon l'état de la technique, dans le boîtier entre les canaux de réservoir, ce qui simplifie la fabrication du boîtier de soupape.
PCT/EP2009/005936 2008-08-28 2009-08-17 Soupape WO2010022869A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008044789.7 2008-08-28
DE200810044789 DE102008044789A1 (de) 2008-08-28 2008-08-28 Ventil

Publications (1)

Publication Number Publication Date
WO2010022869A1 true WO2010022869A1 (fr) 2010-03-04

Family

ID=41258980

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/005936 WO2010022869A1 (fr) 2008-08-28 2009-08-17 Soupape

Country Status (2)

Country Link
DE (1) DE102008044789A1 (fr)
WO (1) WO2010022869A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016111128A1 (de) * 2016-06-17 2017-12-21 Schmidt Automotive Gmbh Rotationssymmetrischer Hohlkörper und Verfahren zu dessen Herstellung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1245662B (de) * 1962-11-09 1967-07-27 Ludwig Rexroth Kolbenschieber
US3789880A (en) * 1972-01-04 1974-02-05 Chem Valley Machines Inc Porous metal flow control spool
EP0573191A1 (fr) * 1992-06-05 1993-12-08 Trinova Limited Vannes hydrauliques à deux étages
DE4319162A1 (de) * 1993-06-09 1994-12-15 Rexroth Mannesmann Gmbh Hydraulikventil, insbesondere zum Steuern eines hydraulischen Aktuators in einem System zur Wankstabilisierung eines Kraftfahrzeugs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1245662B (de) * 1962-11-09 1967-07-27 Ludwig Rexroth Kolbenschieber
US3789880A (en) * 1972-01-04 1974-02-05 Chem Valley Machines Inc Porous metal flow control spool
EP0573191A1 (fr) * 1992-06-05 1993-12-08 Trinova Limited Vannes hydrauliques à deux étages
DE4319162A1 (de) * 1993-06-09 1994-12-15 Rexroth Mannesmann Gmbh Hydraulikventil, insbesondere zum Steuern eines hydraulischen Aktuators in einem System zur Wankstabilisierung eines Kraftfahrzeugs

Also Published As

Publication number Publication date
DE102008044789A1 (de) 2010-03-04

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