WO2015018730A1

WO2015018730A1 - Intermediate plate and method for producing an intermediate plate

Info

Publication number: WO2015018730A1
Application number: PCT/EP2014/066464
Authority: WO
Inventors: Bernhard Eberle; Albert Lennerth; Jochen Schöllhammer
Original assignee: Elringklinger Ag
Priority date: 2013-08-05
Filing date: 2014-07-31
Publication date: 2015-02-12
Also published as: DE102013108414A1

Abstract

The invention relates to an intermediate plate (30) for installing between two channel sides (24, 26) of housing parts (12, 14) of a controller for loads operated by a pressure medium, which channel sides can be laid against the intermediate plate, wherein at least one of the housing parts has at least one valve (16, 18) that controls the pressure medium and/or at least one slide (22) that controls the pressure medium, wherein the pressure medium flows through a plurality of passages (42, 44, 46) of the intermediate plate and at least one passage (44) of the intermediate plate having a defined throttle opening (50) and wherein the intermediate plate has at least one carrier plate (54), which has a respective sealing element (82, 84) on each of the flat sides (56, 58) opposite each other. In order to improve said intermediate plate in such a way that the throttle opening is as optimally effective and as optimally arranged as possible, the throttle opening according to the invention is arranged in a bottom (62), which is produced by material displacement and closes off at least one recess (52) in the carrier plate and has a thickness (DB) that is less than half the thickness (DT) of the carrier plate in the region of the flat sides of the carrier plate opposite each other.

Description

INTERMEDIATE PLATE AND METHOD FOR PRODUCING ONE

BETWEEN PLATE

The invention relates to an intermediate plate for mounting between two applicable to this channel side of housing parts of a control for fluid-powered consumers, in particular transmission, wherein at least one of the housing parts at least one pressure medium controlling valve and / or at least one pressure medium controlling slide, wherein the pressure means more Passages of the intermediate plate and at least one passage of the intermediate plate with a defined throttle opening flows through and wherein the intermediate plate has at least one support plate, which is provided on opposite flat sides in each case with a sealing element.

Such intermediate plates are known from the prior art.

In these, however, there is the problem of optimally arranging the throttle opening.

The invention is therefore an object of the invention to improve an intermediate plate of the generic type such that the throttle opening is optimally effective and optimally arranged.

This object is achieved according to the invention in an intermediate plate of the type described above, that the throttle opening is arranged in a produced by material displacement and at least one recess in the base plate final floor having a thickness which is less than half the thickness of the support plate in the region of their opposite flat sides. The advantage of the solution according to the invention is therefore to be seen in the fact that with this it is possible to easily arrange the throttle opening on the support plate and thus also in a simple manner with optimal optimal function.

The thickness of the bottom is preferably less than a third, more preferably less than a quarter of the thickness of the support plate.

In particular, it is provided that the bottom is formed or produced exclusively by material displacement from the carrier plate, so that the material for generating the recess by the material displacement is used to form the soil.

To be able to form the depression optimally, in particular without removing material of the carrier plate, it is preferably provided that the at least one depression is surrounded by a material ejection.

This creates in a simple way the possibility to deposit the displaced by the formation of the recess material without material removal.

In particular, it is provided that the material placement is created exclusively by displacement of material in the formation of at least one depression.

With regard to the formation of the deepening no details have been given so far.

Thus, an advantageous solution provides that the at least one recess has cylindrical side walls extending to a central axis.

Alternatively, it is provided that the at least one recess has conical to a central axis extending side walls. In order to achieve an advantageous turbulent flow during the flow through the throttle opening, it is preferably provided that an annular surface lies between the side walls adjoining the bottom and the throttle opening.

The annular surface could be conical or parabolic or curved in another form to the central axis.

It is particularly favorable if the annular surface is preferably substantially parallel to one of the flat sides.

Substantially parallel is to be understood as meaning that the deviation from a precisely parallel course amounts to a maximum of 20 °.

In particular, such an annular surface can be achieved when the recess closed by the bottom in the intermediate plate has a cross-sectional area which is a multiple of a cross-sectional area of the

Throttle opening is.

In particular, it is provided that the cross-sectional area of the recess is at least five times, more preferably at least ten times the cross-sectional area of the throttle opening in order to obtain the best possible throttle effect in the region of the throttle opening.

Appropriately, it is further provided that the cross-sectional area of the recess is at most thirty times the cross-sectional area of the throttle opening.

With regard to the arrangement of the soil relative to the carrier plate so far no further details have been made. Thus, an advantageous solution provides that the bottom is covered by a material posing, which projects beyond this on one of the flat sides of the support plate.

In particular, it is advantageous in this case if the material embracing the bottom and projecting beyond the one flat side of the carrier plate extends radially to the throttle opening.

In the case of a solution it is expediently also provided for the material deposit to be surrounded by a depression, which in particular the

Material launch radially limited.

It is particularly useful in a solution when the bottom is formed so that it protrudes on one of the flat sides of the support plate on this.

In this solution, it is particularly advantageous to form the floor with the smallest possible thickness, since the displaced material can be distributed over a larger area.

With regard to the formation of the soil, no further details have been given so far.

Thus, an advantageous solution provides that the base extends with its over the one flat side of the support plate projecting portion radially to the throttle opening beyond the recess and in particular merges with its extending beyond the recess area in the carrier plate.

A particularly expedient solution provides that the material launching the ground, a bottom segment carrying the throttle opening and, following the ground segment, one around this ground segment having circumferential connection segment, the latter establishes a connection between the ground segment and the support plate, and in the

Carrier plate passes.

Regarding the formation of the at least one depression were in

Connection with the previous explanation of the individual embodiments made no further details.

Thus, an advantageous solution provides that the support plate has a single extending from one of the flat sides to the bottom recess.

Alternatively, another advantageous solution provides that the carrier plate has in each case from one of the flat sides to the bottom extending recesses.

In particular, a recess thus extends from each of the flat sides to the bottom.

In this case, the depressions can be arranged offset relative to one another with respect to a central axis.

It is particularly favorable, however, if the recesses are arranged substantially coaxially with each other.

In the case of a solution, provision is expediently made for the bottom to be shaped such that it is arranged between the opposite flat sides of the carrier plate.

It is particularly expedient if the bottom between the two mutually opposite recesses in the carrier plate is arranged and thus separates the wells from each other. A particularly favorable material deformation is in such a solution can be realized when each of the opposing wells is surrounded by a Materialaufwerfung.

With regard to the design of the throttle opening so far no details have been made.

Thus, an advantageous solution provides that the throttle opening is formed after molding of the soil in the ground, that is, first a shaping of the soil by material displacement takes place and then the formation of the throttle opening in the ground.

With regard to the design of the throttle opening, it would be conceivable to produce the throttle opening also by a material displacement, in particular it would be conceivable to produce the throttle opening by a punching or stamping process.

Alternatively, an advantageous solution provides that the throttle opening is machined.

In order to achieve an optimal throttling effect of the throttle opening, it is preferably provided that the throttle opening is designed such that, when the throttling action occurs, a turbulent pressure medium flow is formed in the throttle opening and thus unfolds the best possible throttling effect.

Preferably, it is provided that the throttle opening acts together with the bottom like a diaphragm, that is, causes a very sudden narrowing of the cross section along the flow path of the pressure medium, which is conducive to a turbulent pressure fluid flow in the throttle opening. It is particularly expedient if the throttle opening in the bottom has a diameter / height ratio which is greater than 1, that is, the diameter of the throttle opening is greater than the height or length of the throttle opening, whereby the formation of turbulent pressure fluid flows are also promoted.

Moreover, the invention relates to a method for producing an intermediate plate according to one or more of the preceding features.

In such a method is preferably provided that the recess and the bottom are formed by a deformation process with material displacement from the support plate to the support plate.

That is, there is a one-piece molding of the soil to the support plate by material displacement from the support plate out, in particular a material displacement, which serves to form at least one depression.

Preferably, it is provided that the bottom is formed by a forming process with at least one on the support plate on at least one side acting punch and at least one fitting against the support plate die.

With at least one such stamp can be realized in a simple manner, the displacement of material from the carrier plate out into the die inside.

Appropriately, it is provided that the at least one

Material posing is produced by a material flow, which in one

Movement direction of the punch and / or transversely to the direction of movement of the punch, that is, the stamp material from the support plate in Pushes out the direction of the die and / or also simultaneously this material transversely to its direction of movement, thereby forming the respective material posing arises, which extends transversely to a central axis of the recess or transversely to the direction of movement of the punch and integrally merges into the carrier plate, such as Ground .

In particular, it is provided that the shape of the at least one material posing, for example, of the soil, by the die and the at least one punch in its final position is specified, that is, the at least one punch moves relative to the die and the support plate to its end position is and in this final position then the shape of the soil by the at least one stamp in the final position and the die is specified.

In the simplest case, it is provided that the soil is produced by a flow of material to the material launching, in which case the soil from the material deposition comprises and is formed for example by a part of the material throw.

Further, it is preferably provided that the at least one over at least one of the flat sides levied material placement by

Forming the recess is formed in the support plate.

This is done, for example, by forming the at least one deposition of material on an opposite side of the support plate from the molded recess.

Alternatively or additionally, however, provision may also be made for the at least one deposition of material on the carrier plate to be formed on the side of the depression. In a further embodiment, it is provided that material ejections are formed by molding the at least one recess in the carrier plate on both sides of the carrier plate.

In this case, the Materialaufwerfungen can be formed in a variety of ways.

An advantageous solution provides that the at least one material ejection is shaped so that it radially to the recess

then extending and away from it.

In another type of material launching, it is contemplated that the at least one deposition of material is formed to include the floor and to extend radially to and from the throat opening.

Another way of forming at least one material deposit is to produce the material by forming a portion of the carrier plate, such as by beading a portion of the carrier plate such that the deformed area rises above one of the flat sides of the carrier plate and then forms the material ,

In particular, it is provided that the at least one material launch is generated with a radial extension to a central axis of the recess, which is greater than a maximum radius of the recess.

The material deposition can, in particular when it rises above a flat side plane, for example in the form of the floor, also be made so that it fixes a functional position on the support plate. For this purpose, it is provided that the deposition of material, for example in the form of the floor, is produced in such a way that it embeds an edge region of a functional layer of flat material into its outer side, wherein the edge region is designed, for example, encircling the bottom.

In particular, it is provided that the edge region of the functional layer following the flat side of the carrier plate, the material launch, for example, in the soil, is embedded.

The object mentioned at the outset is further achieved by a control for pressure-medium-operated consumers which comprises a control housing with two housing parts and an intermediate plate arranged between the housing parts, wherein at least one of the housing parts has at least one valve controlling the pressure medium and / or at least one slide controlling the pressure medium wherein the pressure medium flows through a plurality of passages of the intermediate plate and at least one passage of the intermediate plate with a defined throttle opening and wherein the intermediate plate has at least one support plate which is provided on opposite flat sides each with a sealing element, wherein the throttle opening in a to the support plate by material displacement molded bottom is arranged.

In particular, the intermediate plate is formed according to one or more of the preceding features.

An advantageous solution provides that the throttle opening is arranged in a on one of the flat sides of the support plate on this projecting bottom.

Another advantageous solution provides that the throttle opening is provided in a bottom arranged between the flat sides. In this solution, a material displacement and thus the formation of a Materialaufwurfs on one or both flat sides of the support plate.

In order to obtain an optimal seal, it is preferably provided that at least one of the housing parts has a recess into which projects the material Aufwurf and optionally the ground in the assembled state of the housing parts.

Further features and advantages of the invention are the subject of the following description and the drawings of some embodiments.

In the drawing show:

1 shows a schematic exploded view of two housing parts of a control, which are broken away in certain areas, and a schematic representation of an intermediate plate between these housing parts;

Figure 2 is a fragmentary enlarged view of the housing parts, as they rest in the mounted position of the controller to a first embodiment of the intermediate plate.

Fig. 3 is a schematic representation of a forming unit and a

Die before producing a floor according to the invention by forming a portion of a support plate;

4 is a view similar to FIG. 3 of the forming unit and the die after material shift and forming for the production of the soil; 5 shows a detail of the carrier plate in the region of the shaped bottom, similar to FIG. 4 without the forming unit and the die having a throttle opening formed in the bottom;

Fig. 6 is a view similar to Figure 5 with applied to the intermediate plate sealing elements.

7 is a view similar to FIG. 6 of a second embodiment of an intermediate plate according to the invention with formed by functional layers sealing elements;

8 is a schematic representation similar to FIG. 4 of a forming process with material displacement and simultaneous embedding of a peripheral region of a functional layer in a connecting segment of the base for fixing the functional layer to the carrier plate;

9 is a schematic view similar to FIG. 2 of a third

Embodiment of an intermediate plate according to the invention;

10 is a schematic view similar to FIG. 2 of a fourth

Embodiment of an intermediate plate according to the invention;

11 is a schematic view similar to FIG. 10 of a fifth

Embodiment of an intermediate plate according to the invention and

12 is a schematic view similar to FIG. 10 of a fifth

Embodiment of an intermediate plate according to the invention;

13 is a schematic view similar to FIG. 2 of a sixth

Embodiment of an intermediate plate according to the invention; 14 is a schematic representation of forming units with dies before production of a floor according to the invention according to the fourth embodiment by forming a portion of a support plate;

Fig. 15 is a schematic representation of a first forming step for

Production of the intermediate plate according to the sixth embodiment and

Fig. 16 is a schematic representation of a second forming step for

Production of the intermediate plate according to the sixth embodiment.

A schematically illustrated in FIG. 1 and designated as a whole by 10 control for fluid-operated consumers, for example for fluid-operated gear units, in particular gear units for motor vehicles, comprises a control housing 11, formed from a first housing part 12, in particular made of metal, and a second housing part 14, in particular made of metal, of which, for example, the first housing part valves 16, 18 and the second housing part 14, for example, a slide 22, wherein these each control a flow of pressure medium in the respective housing part 12, 14 or regulate.

The two housing parts 12, 14 have mutually facing channel sides 24 and 26, which are formed so that the pressure medium from the one housing part 12, 14 in the other housing part 14, 16 can pass.

Between these channel sides 24 and 26 of the housing parts 12, 14 is a generally designated 30 intermediate plate is inserted, which rests on the channel side 24 of the first housing part 12 with a first side 32 and on the channel side 26 of the second housing part 14 with a second side 34 and in each case with the channel sides 24, 26 closes tight, wherein in the

Intermediate plate 30 passages, for example, the passages 42, 44, 46 and possibly further passages, are provided, through which a crossing of the pressure medium from a housing part 12, 14 in the other

Housing part 14, 16 takes place.

In this case, some of the passages, for example the passages 42 and 44, allow unimpeded passage of the pressure medium from one housing part 12, 14 into the respective other housing part 14, 12, in addition serve some of the passages, for example, the passage 44, as a throttle for the from a housing part 12, 14 in the other housing part 14, 12 overflowing pressure medium, through such a passage 44, a targeted customizable throttling effect for controlling processes, in particular temporal sequences during switching operations, can be achieved.

For example, as shown in FIG. 2, the passage indicated as a whole by 44 is provided with a throttle opening 50 which exerts a throttling action on the pressure medium passing therethrough.

In the embodiment shown in Fig. 2, the passage 44 is formed by a recess 52 which is formed in a support plate 54 made of metal of the intermediate plate 30, in such a way that it extends from a first flat side 56 of the support plate 54 in the direction of second flat side 58 of the support plate 54 extends, wherein the recess 52 is closed by a arranged in the region of the second flat side 58 bottom 62 and the bottom 62 in turn has the throttle opening 50 which, starting from a bottom 62 formed by the end surface 64 of the recess 52nd extends to a formed by the bottom 62 and the end surface 64 opposite outer surface 66 of the bottom 62. In this case, the bottom 62 preferably rises above the second flat side 58 such that a bottom segment 62 with the throttle opening 50 comprehensive bottom segment 68 is formed by a material deposition 70 of displaced in the preparation of the recess material of the support plate 54 and on the second flat side 58 of Supporting plate 54 protruding extends, that is, on a side facing away from the flat side 56 of the flat side 58 extends, and over a bottom segment 68 enclosing and formed by the overlying the second flat side 56 Materialaufwergung 70 connecting segment 72 extending from the bottom segment 68th extends in the direction of the support plate 54, merges into the support plate 54.

The connection segment 72 in this case adjoins a region 74 of the carrier plate 54 enclosing the depression 52, this region 74 forming a side wall surface 76 which encloses the depression 52 and extends from the first flat side 56 to the end surface 64 of the depression 52.

Preferably, the side wall surface 76 extends symmetrically, in particular cylindrically, to a central axis M.

In the illustrated first embodiment thus runs the

End surface 64 of the depression, which is formed by the bottom 62, at a distance from a predetermined by the second flat side 58 second flat side plane FE, on one of the first flat side 56 opposite side of the second flat side plane FE2 and the outer surface 66 of the bottom 62 extends in an even greater distance from the second flat side plane FE2. Thus, both the bottom segment 68 surrounding the throttle opening 50 and the terminal segment 72 surrounding the bottom segment 68, which are formed by the material deposition 70, over the flat side plane FE2 on one side opposite the first flat side 56 over.

A thickness DB of the bottom 62 is preferably less than half, more preferably less than one third, and more preferably less than a quarter of a thickness DT of the backing plate 54 measured between the flat sides 56 and 58.

Preferably, the bottom 62 in the region of the bottom segment 68 has a thickness DB which corresponds at most to a diameter DO of the throttle opening 50.

That is, the diameter DO of the throttle opening 50 is preferably always greater than the thickness DB of the bottom, with the result that a flow through the throttle opening, when the throttle opening 50 unfolds its full effect in the form of a turbulent flow, wherein the turbulent flow has the advantage that thereby the flow resistance of the throttle opening 50 is greater than it is in the case of a non-turbulent

Flow, such as a laminar flow, would be.

Moreover, the recess 52 has a cross-sectional area QV which is many times greater than a cross-sectional area QDO of the throttle opening 50, preferably the cross-sectional area QV of the recess 52 is at least ten times greater than the cross-sectional area QDO of the throttle opening 50.

Thus, in the end face 64, an annular surface 78 located between the throttle opening 50 and the side wall surfaces 76 extends around the throttle opening 50. The intermediate plate 30 further comprises on the support plate 54, on the first flat side 56 and the second flat side 58, respectively applied sealing elements 82 and 84, which formed for example of line-shaped or areally applied, in particular in individual partial surfaces or areally applied elastomeric material and are applied to the flat sides 56 and 58 of the support plate 54.

These sealing elements 82 and 84 can be applied to the flat sides 56 and 58, for example, by a screen printing method or a similar method.

The sealing elements 82 and 84 serve to seal between the support plate 54 and the channel sides 24, 26 of the housing parts 12, 14 and are therefore in the assembled state of the housing parts 12, 14 tightly against this at, as shown in FIG. 2, so that in each case a reliable seal, for example, to each of the passages 42, 44, 46, takes place.

When, in the intermediate plate 30 according to the invention, the bottom 62 rises above the second flat side 58 and the sealing element 84 has a lower height above the second flat side 58, for example at least in the compressed state, than the bottom 62 is preferably in the housing part 14 facing the bottom 62 , in particular in the channel side 26 of the same, provided as a whole with 86 recess which can accommodate the overlying the second flat side 58 bottom 62 without contact to the sealing around the bottom 62 around sealing element 84 a tight seal between the support plate 54th and to be able to produce the channel side 26 by means of the sealing element 84. In the solution according to the invention, the material launch 70, comprising the ground segment 68 with the bottom 62 and the connecting segment 72, is integrally formed on the carrier plate 54 by a material displacement in the course of forming the recess 52.

For this purpose, as shown in Fig. 3, for example, on the first flat side 56 of the support plate 54 a designated as a whole 90 forming unit, which on the one hand auflegbare on the flat side 56 punch guide 92 and a relative to the punch guide 92 movable punch 94 comprises, wherein the movable punch 94 has a cross-sectional area QS which corresponds to the cross-sectional area QV of the recess 52 to be produced.

Furthermore, a die 100 is applied to the second flat side 58 on an opposite side of the forming unit 90, wherein the die 100 has a mold recess 102 which forms a cavity 104 in a region opposite the punch 94 into which the cavity 52 displaced when forming Material can be moved, wherein the cavity 104 has a volume which approximately corresponds to the volume enclosed by the recess 52.

Preferably, the mold cavity 102 is centered with respect to a central axis 106 of both the forming unit 90 and the mold cavity 102 and has transversely to a coincident with the central axis M center axis 106 an extent which is greater than that of the punch 94th

In a caused by the punch 94 material displacement to form the recess 52 now takes place a displacement of the material of the support plate 54 in the formed by the mold cavity 102 cavity 104 of the die 100, wherein the material deposition 70 with the Floor 62 comprehensive ground segment 68 and the ground segment 68 enclosing terminal segment 72 forms that in turn merges into the support plate 54.

The mold recess 102 of the die 100 gives an outer contour of the

Material launch 70 and thus of the bottom 62, comprising the outer surface 66 and one of the outer surface 66 in the region of the terminal segment 72 merging end surface 108 before.

As illustrated in FIG. 4, when the material deposit 70 and thus the bottom 62 are formed by means of the punch 94 and the die 100, the bottom 62 is formed as a closed bottom and subsequently, as shown in FIG. 5, the throttle opening 50 is introduced , wherein this introduction of the throttle opening 50 in the bottom segment 68 can be done either by a machining or even easier by a punching process by means of a corresponding with respect to the cross-sectional area QDO the throttle opening 50 punch.

Subsequently, as shown in Fig. 6, an application of the sealing elements 82 and 84 on the flat sides 56 and 58, for example in the form of the order of an elastomeric material, this order can be made of elastomeric material, for example in a screen printing or other application method.

The thus produced intermediate plate 30 according to the first embodiment thus comprises the support plate 54 with the above-described bottom 62 and the throttle opening 50, optionally further openings 42 and 46 and the sealing elements 82 and 84, respectively applied to the flat sides 56 and 58th In a second embodiment of a carrier plate 30 according to the invention, shown in Fig. 7, the sealing elements 82 ', 84' are not applied as elastomeric elements directly on the flat sides 56 and 58, but the sealing elements 82 'and 84' of this embodiment are through

Functional layers 112 and 114, for example, formed from a thin resilient metal sheet, these functional layers 112 and 114 are placed on the flat sides 56 and 58 of the support plate.

In this case, the functional layers 112 and 114 for sealing, for example, beads 116, 118, which are bulged out of the functional layers 112, 114, on a side facing away from the support plate 54, so that the beads 116, 118 on the flat sides 56 and 58th rise.

In the illustrated embodiment, the beads 116, 118 are formed as full beads, it is also possible here to use formed as half beads beads in the functional layers 112, 114 for sealing.

For fixing the functional layers, for example, the functional layer 114, for example, the material deposition 70 with the bottom 62 can be formed from the carrier plate 54 in such a way that, as shown in FIG. 8, in the course of material displacement, the forming connecting segment 72 'surrounds an edge region 122 of the functional layer 114 protruding into the mold recess 102 of the female mold 100 and thus the edge region 122 of the functional layer 114 on a side facing away from the flat side 58, forming a projection 124 overlaps so that the edge region 122 between the projection 124 of the terminal segment 72 and the flat side 58 is positively fixed and thus the entire functional layer 114 can be fixed by the formation of the bottom 62 'on the support plate 54 in the course of material displacement, as shown in FIG 8. Fixation of the functional layer 112 arranged on the flat side 56 can be effected in a similar manner by shaping another such floor at another location or by other means.

In a third embodiment of an intermediate plate according to the invention, shown in FIG. 9, those elements which are identical to those of the first and second embodiments are given the same reference numerals, so that reference may be made to the same in full respect of the description thereof.

In contrast to the preceding embodiments, when forming the recess 52 ', the support plate 54 in the region of the recess 52' reshaped such that in the recess 52 'surrounding area 74' a material launch 122 is formed, which extends over the first flat side 56 of the support plate 54 raises.

The material deposition 122 is formed by material displacement in the formation of the recess 52 'starting from the side wall surfaces 76 in the radial direction to the central axis M up to at least 1.5 times, preferably more than 2 times the radius RV of the recess 52' in height by the first flat side 56 defined first flat side plane FEI.

Similar to the above embodiments, the bottom 62 'extends near the second flat side plane FE2, with the outer surface 66' of the bottom 62 'extending on an opposite side of the second flat side plane FE2 from the first flat side 56.

In the third embodiment of an intermediate plate according to the invention, however, the end surface 64 lies between the first flat side plane FEI and the second flat side plane FE2. The bottom segment 68 'and the connecting segment 72 enclosing this are likewise formed by a material discharge 124 which rises above the second flat side 58 and rises in the same way as the material deposit 122 over the flat side 58 and runs around the throttle opening 50 in a circumferential manner.

In particular, the material deposition 124 extends radially from the orifice 50 to the central axis M for more than 1.5 times the radius RV, preferably more than 2 times the radius RV around the central axis M.

Preferably, in the third embodiment it is provided that the material ejections 122 and 124 rise above the first flat side planes FEI and FE2 to a height which is less than 2 mm, preferably less than 1 mm, but at least 0.2 mm better 0.4 mm.

In a fourth exemplary embodiment of an intermediate plate 30 "according to the invention, illustrated in FIG. 10, the bottom 62" lies between the first flat side plane FEI and the second flat side plane FE2 of the carrier plate 54.

The bottom 62 "is formed by starting from the first flat side 56, a first recess 52" a and starting from the flat side 58, a second recess 52 "b respectively on opposite sides, preferably substantially coaxial with the central axis M, in the intermediate plate 54 hineinerstrecken, wherein the bottom 62 "in this case between two

End surfaces 64 "a and 64" b, with each of the end surfaces 64 "a and 64" b closing the respective indentations 52 "a and 52" b, respectively.

Thus, in the third embodiment, the throttle opening 50 extends between the end surfaces 64 "a and 64" b. In the formation of the two recesses 52 "a and 52" b also arise Materialaufwerfungen 122 "and 124", in which the respective recesses 52 "a and 52" b enclosing area 74 "a and 74" b, said Materialaufwerfungen 122 "and 124 "also raise above the respective first flat side plane FEI or the second flat side plane FE2 over a height that is less than 2 mm, preferably less than 1 mm, but at least 0.2 mm, more preferably 0.4 mm.

The production of the fourth embodiment by material displacement from the support plate 54 to form the recess 52 "is analogous to the method described in connection with the first and second embodiments.

For example, in the fourth embodiment, the sidewall surfaces 76 "a and 76" b of the recesses 52 "a and 52" b are cylindrically aligned with the center axis M, respectively.

In contrast to the fourth embodiment, in the fifth embodiment of an intermediate plate 30 "'according to the invention, shown in FIG. 11, it is provided that the side wall surfaces 76"' a and 76 "'b of the recesses 5"' a and 52 "', respectively. b tapered to the central axis M in such a way that they taper in the direction of the bottom 62 "', that is, in the direction of the bottom 62"' with progressively smaller radial distance from the central axis M, wherein the annular surfaces 78 "'a and 78 "'b are the same size.

Such a conical configuration of the side wall surfaces 76 "'a and 76"' b facilitates forming the support plate 54 in forming the recesses 52 "'a and 52"' b and the Materialaufwerfungen 122 "'and 124"'. Incidentally, the fifth embodiment of the invention

Intermediate plate formed in the same manner as in connection with the preceding embodiments, in particular the fourth embodiment of FIG. 10, described.

In a sixth embodiment of an intermediate plate 30 "'of the present invention, in Fig. 12, the recess 52" "a has sidewall surfaces 76" "a cylindrical to the central axis M, while the recess 52" "b sidewall surfaces 76" "b has, starting from the bottom 62 "" extend conically widening.

Further, the end surface 64 "" a of the recess 52 "" a has a smaller radial extent to the central axis M than the end surface 64 "" b of the recess 52 "" b, so that the annular surface 78 "" b is larger than the annular surface 78th "" a.

Moreover, the bottom 62 "" is not symmetrically disposed between the flat side planes FEI and FE2 of the carrier plate 54, so that the bottom 62 "" is located closer to the flat side plane FE2, in particular.

As a consequence, the recess 52 "" a extends deeper into the carrier plate 54, starting from the flat side plane FEI, than the recess 52 "" b.

Preferably, the extent of the recess 52 "" a, starting from the flat side plane FEI to the end face 64 "" a, is more than twice as large as the extension of the recess 52 "" b from the flat side plane FE2 to the end face 64 "" b.

Also in the sixth embodiment, around the indentations 52 "" a and 52 "" b are material spits 122 "" and 124 "" extending radially from the side wall surfaces 76 "" a and 76 "" b to the central axis M extend over a radius RA, which is at least twice the radius RV of the recess 52a in height of the flat side plane FEI.

Further, the material buildup 122 "" and 124 "" are formed so that they rise above the flat side planes FEI and FE2 maximum to the same heights, as indicated in connection with the third embodiment.

Incidentally, the sixth embodiment of the intermediate plate 30 "" according to the invention is formed in the same manner as described in connection with the above embodiments, in particular the third to fifth embodiments, so that in this respect to the

For this purpose, full content can be referred to.

In a seventh embodiment of an intermediate plate 30 '"' according to the invention, shown in FIG. 13, similar to the third embodiment, a recess 52 "" 'a is provided, the side wall surfaces 76 ""' a, for example, extend cylindrically to the central axis M.

Around the recess 52 "" 'a runs around the flat side 56 rising material deposition 122 ""', which rises above the flat side plane FEI to those same heights, as explained for example in connection with the third embodiment.

Further, the bottom 62 "'' extends as part of the material launching 124 '"' with the outer surface 66 ""'at a distance from the flat side plane FE2, that is, it rises above the flat side plane FE2 with a height equal to the height of the material throws 122, 124 corresponds to the third embodiment. The material launch 124 ""'immediately adjacent the orifice 50 extends over a radius RAb that is less than the radius RAa of the material launch 122 ""' that extends around the depression 52 ""'a.

Further, radially outwardly around the material launch 124 "", there is still an annular recess 126 "" 'extending into the intermediate plate 54 from the flat side plane FE2 which extends between the undeformed flat 58 and the material launch 124 ""' around the material launch 124 ". '' runs around.

For the production of the depressions 52 "a and 52" b, for example of the fourth embodiment and in an analogous manner of the fifth or sixth embodiment, forming units 90 "a and 90" b are provided on each of the flat sides 56 and 58, the punch guides 92 "a and 92 "b for punches 94" a and 94 "b, wherein the punches 94" a and 94 "b are preferably arranged coaxially with each other so that they are opposite to each other and shown in phantom recesses 52" a and 52 "b in FIG the carrier plate 54 can be formed.

In addition, each of the forming units 90 is "a and 90" b with a

corresponding die 100 "a and 100" b having the mold recesses 102 "a and 102" b to form cavities 104 "a and 104" b, respectively, into which the material flows to form the dashed material headers 122 and 124, respectively can, whereby by the nature and design of the cavities 104 "a and 104" b a shape for the forming Materialaufwerfungen 122 or 124 can be predetermined.

To produce the recess 52 "'' a of the seventh embodiment, as shown in Fig. 15 and 16, the support plate 54 in the region of the recess to be produced 52""'a with the Materialaufwerfungen 122""' and 124""'a bead-like Imprinting a region 132 made up extends about the central axis M over a radius RAa and leads to the formation of the material elevation 142, which rises above the flat side plane FEI and leads to the formation of a recess 144 which extends from the flat side plane FE2 into the carrier plate, wherein the thickness of the region 132 remains essentially unchanged.

At the same time, the material elevation 142 above the flat-side plane FEI essentially rises by the height which is to correspond to the height of the material throw 122 "" resulting therefrom.

In a second step, as shown in FIG. 16 impresses the recess 52 "" 'a, which causes the material deposit 146 to form in the region of the recess 144 by displacement of the material from the recess 52 ""' a to be produced, which rises above the flat side plane FE2 Materialaufwerfung 124 "" ', the outer surface 66 ""' at a distance from the flat side plane FE2 extends over the same, and thus the height of the material posing 122 "" 'corresponds, with which this rises above the flat side plane FEI.

In this case, as shown in FIG. 16, the die 100 "" 'is preferably applied to the flat side 58 for shaping the material discharge 124 ""', which has a die recess 102 "" 'which measures the height and extent of the material placement 124 ". pretends.

In the same way, a forming unit 90 ""'is used for introducing the recess 52 ""' a, which has a depression 102 ""'a and predetermines the shape of the material placement 122 ""' forming from the material elevation 142. However, the method of fabricating the seventh embodiment may also be reversed so that first the recess 52 ""'a is made with the material deposit 146 and then the material deposit 142 is made.

Furthermore, the method for producing the seventh embodiment can also be carried out so that the first and the second step are combined into a single process step by combining the tools used for the formation of the material elevation and the impressing of the recess.

Claims

PAT E NTAN S P RU C H E

Intermediate plate (30) for mounting between two adjoining this channel sides (24, 26) of housing parts (12, 14) of a controller (10) for fluid-operated consumer, wherein at least one of the housing parts (12, 14) at least one pressure medium controlling valve ( 16, 18) and / or at least one pressure means controlling slide (22), wherein the pressure means a plurality of passages (42, 44, 46) of the intermediate plate (30) and at least one passage (44) of the intermediate plate (30) with a defined Flows through the throttle opening (50) and wherein the intermediate plate (30) has at least one support plate (54), which mutually opposed flat sides (56, 58) each having a sealing element (82, 84) is provided

That is, the throttle opening (50) is arranged in a bottom (62) produced by material displacement and terminating at least one depression (52) in the carrier plate (54), which has a thickness (DB) , which is less than half the thickness (DT) of the support plate (54) in the region of their opposite flat sides (56, 58).

Intermediate plate according to claim 1, characterized in that the bottom (62) is formed or produced exclusively by material displacement from the carrier plate (54).

3. Intermediate plate according to one of the preceding claims, characterized in that the at least one recess (52, 52 ', 52 ", 52"') of a Materialaufwerfung (70, 122, 124) is surrounded.

4. intermediate plate according to claim 3, characterized in that the material throw (70, 122, 124) exclusively by displacement of material in the formation of at least one recess (52, 52 ', 52 ", 52"') is formed.

5. intermediate plate according to one of the preceding claims, characterized in that the at least one recess (52, 52 ', 52 ") cylindrical to a central axis (M) extending side walls (76).

6. intermediate plate according to one of the preceding claims, characterized in that the at least one recess (52 "') conically to a central axis (M) extending side walls (76"').

7. Intermediate plate according to one of the preceding claims, characterized in that between the at the bottom (62) adjacent side walls (76) and the throttle opening (50) an annular surface (78).

8. intermediate plate according to one of the preceding claims, characterized in that through the bottom (62) closed recess (52) in the intermediate plate (30) has a cross-sectional area (QV) which is a multiple of a cross-sectional area (QDO) of the throttle opening (50 ) is.

9. Intermediate plate according to one of the preceding claims, characterized in that the bottom (62) by a Materialaufwerfung (70, 124) is embraced on one of the flat sides (56, 58) of the support plate (54) projects beyond this.

10. intermediate plate according to one of the preceding claims, characterized in that the bottom (62) and over the one flat side (58) of the support plate (54) projecting material discharge (70, 124) extends radially to the throttle opening (50).

11. intermediate plate according to claim 10, characterized in that the material throw (124 "" ') by a recess (126 ""') is surrounded.

12. intermediate plate according to one of the preceding claims, characterized in that the carrier plate (54) has a single from one of the flat sides (56, 58) to the bottom (62) extending recess (52).

13. Intermediate plate according to one of claims 1 to 11, characterized in that the carrier plate (54 ") extending from one of the flat sides (56, 58) to the bottom (62) extending recesses (52" a, 52 "b, 52 "'a, 52"' b).

14. intermediate plate according to claim 13, characterized in that the bottom (62 ") is formed so that this between the opposite flat sides (56, 58) of the support plate (54") is integrally formed.

15. intermediate plate according to claim 13 or 14, characterized in that the bottom (62 ") between the two opposite recesses (52" a, 52 "b) in the support plate (54") is arranged.

The intermediate plate according to any one of claims 13 to 15, characterized in that each of the opposed recesses (52 "a, 52" b) is surrounded by a material deposit (122 ", 124").

17. intermediate plate according to one of the preceding claims, characterized in that the throttle opening (50) after formation of the bottom (62) in the bottom (62) is formed.

18. intermediate plate according to one of the preceding claims, characterized in that the throttle opening (50) is made by a material displacement process.

19. Intermediate plate according to claim 17, characterized in that the throttle opening (50) is produced by a stamping process or an embossing process.

20. intermediate plate according to one of claims 1 to 17, characterized in that the throttle opening (50) is made by machining.

21. Intermediate plate according to one of the preceding claims, characterized in that the throttle opening (50) is formed so that forms a turbulent flow of pressure medium in the throttle opening (50) when eintretender throttle effect.

22. Intermediate plate according to one of the preceding claims, characterized in that the throttle opening (50) acts together with the bottom (62) like a diaphragm.

23. intermediate plate according to one of the preceding claims, characterized in that the throttle opening (50) in the bottom (62) has a diameter / height ratio that is greater than 1.

24. A method for producing an intermediate plate according to one of the preceding claims, characterized in that the recess (52) and the bottom (62) by a deformation process with material displacement from the support plate (54) on the support plate (54) are formed.

25. The method according to claim 24, characterized in that the bottom (62) by a forming process with at least one of the carrier plate (54) acting on at least one side punch (94) and on the support plate (54) fittingly acting die (100 ) is formed.

26. The method according to claim 24 or 25, characterized in that at least one material launch (70, 122, 124) is generated by a material flow, in a direction of movement of the at least one punch (94) and / or transversely to the direction of movement of the at least one punch (94).

27. The method according to claim 26, characterized in that the shape of the at least one material posing (70, 122, 124) by the die (100) and the at least one punch (94) is set in its end position.

28. The method according to any one of claims 24 to 27, characterized in that the bottom (62) by a flow of material to the

Material posing (70, 122, 124) is generated.

29. The method according to any one of claims 24 to 28, characterized in that at least one over at least one of the flat sides (56, 58) elevating material throw (70, 122, 124) by molding the recess (52) in the support plate (54) is formed.

30. The method according to claim 29, characterized in that the at least one material posing (70, 124) on one of the molded-in recess (52) opposite side of the support plate (54) is formed.

31. The method of claim 29 or 30, characterized in that the at least one material posing (122) on the support plate (54) on the side of the recess (52) is formed.

32. The method according to any one of claims 24 to 31, characterized in that by forming the at least one recess (52) in the carrier plate on both sides of the carrier plate (54) Materialaufwerfungen (122, 124) are formed.

A method as claimed in any of claims 24 to 32, characterized in that the at least one deposition of material (122, 124) is shaped to expand radially adjacent to and away from the recess (52).

A method according to any one of claims 24 to 33, characterized in that the at least one deposition of material (122, 124) is shaped to encompass the bottom (62) and radially adjacent to and away from the orifice (50) extends.

35. The method according to any one of claims 24 to 34, characterized in that the at least one material launch (70, 122, 124) with a radial extent (RA) to a central axis (M) of the recess (52) is generated, which is greater than a maximum radius (RV) of the recess (52).

36. The method according to any one of claims 24 to 35, characterized in that the material throw (122 "" ') by forming a portion (132) of the support plate (54) is generated.

37. The method according to any one of the preceding claims, characterized

in that the material application (70) is produced in such a way that it fixes a functional layer (112, 114) to the carrier plate (54).

38. The method according to claim 37, characterized in that the

Material posing (70) is prepared so that from this edge region (122) of a functional layer (112, 114) is embedded from flat material in its outer side.

39. The method according to claim 38, characterized in that the edge region (122) of the functional layer (112, 114) is embedded in the material launching (70) following the flat side (58) of the carrier plate (54).

40. Control for fluid-powered consumer, comprising a

Control housing having two housing parts (12, 14) and an intermediate plate (30) arranged between channel sides (24, 26) of the housing parts (12, 14), wherein at least one of the housing parts (12, 14) has at least one valve (16, 16) controlling the pressure medium. 18) and / or at least one pressure medium controlling slide (22), wherein the pressure means a plurality of passages (42, 44, 46) of the intermediate plate (30) and at least one passage (44) of the intermediate plate (30) with a defined throttle opening ( 50) flows through and wherein the intermediate plate (30) has at least one carrier plate (54) which is provided on opposite flat sides (56, 58) each with a sealing element (82, 84), characterized in that the throttle opening (50) is provided in a to the support plate (54) arranged by material displacement bottom (62).

Control according to claim 40, characterized in that the intermediate plate (30) according to one of the preceding claims 1 23 is formed.