CN111664146A

CN111664146A - Flow-technically pressure-loss-optimized closing element for a fluid channel

Info

Publication number: CN111664146A
Application number: CN202010146870.5A
Authority: CN
Inventors: F.埃贝特; R.彼得森
Original assignee: Volkswagen AG
Current assignee: Volkswagen AG
Priority date: 2019-03-05
Filing date: 2020-03-05
Publication date: 2020-09-15
Anticipated expiration: 2040-03-05
Also published as: DE102019105507A1; CN111664146B

Abstract

The invention relates to a flow-technically pressure-loss-optimized closing element for a fluid channel, in particular to a closing element for closing a flow-conducting component, in particular a housing, having at least one component-side fluid opening, at which at least two fluid channels meet, which forms a bifurcation in the interior of the component. It is provided that the closure element has at least one sealing element which, in the assembled state, seals the at least one fluid opening and comprises at least one profile element, wherein the profile element has at least two openings with a cross-sectional profile at least two separating surfaces of the profile element, which cross-sectional profile corresponds to the cross-sectional profile of the openings of the at least two fluid channels in the region of the bifurcation in the assembled state of the closure element and the component, in view of its position and its cross-sectional shape.

Description

Flow-technically pressure-loss-optimized closing element for a fluid channel

Technical Field

The invention relates to a closure element (Verschlussel element), in particular a plug, for closing a flow conducting component, in particular a housing, having at least one component-side Fluid opening (Fluid- Ö ffnung) at which at least two Fluid channels meet, which channels form a branch within the component.

Background

Measures for pressure loss reduction, in particular for achieving further CO, are sought, in particular in the field of transmission lubrication₂The oil circuit is a system of mostly cylindrical bores, which are often guided through "angular transitions", and which are frequently guided through technical-related deep-hole bores which are required for lubrication in the engine and transmission housings are cut into by means of machine tools.

For continuous diversion of the flow of lubricating material, the connection or branching of the bore thus produced is for a greater angle: (>30 deg.) can be evaluated as disadvantageous in terms of flow technology. This means that the flow resistance and therefore also the pressure loss increase, with a CO that is worth improving₂Again, the balanced overall operation causes unnecessary power losses.

Conventional system solutions, in which there is little flow resistance, are based on a separate bent oil tube, which is guided outside or inside the engine or transmission housing. Although advantageous in view of flow optimization, they are nevertheless more complex to produce and are therefore likewise not target-oriented.

The saving potential of flow optimization by means of geometry optimization of the oil line with flow direction change is simulated by a relative comparison of a 270 ° acute angle bend and a more favorable flow 270 ° circular arch, wherein a flow velocity of 2.5 … 6m/s is specified for the pressure pipe. The analytical solution of the power loss calculation indicates a saving potential of about 14% to 83% in the case of different temperatures or viscosities of the lubricating material. This saving potential coincides with an absolute power loss of about 0.6 to 5 watts per "steering element" -element.

Document EP 1077357B 1 discloses a closure with a diverting surface facing a (coolant) channel of a defined configuration. The plug is designed in such a way that the cross-sectional variation in the penetration region of the two coolant channels is reduced. The deflecting surface of the concave design deflects the flow gently. Thereby, sudden braking of the (coolant) flow is prevented and friction losses in the penetration area are reduced. The closure is fixedly fitted into the passage. It can be clamped in the channel, for example by external action (material pressing).

Disclosure of Invention

The present invention, considering the previous embodiments, is based on the object of finding an optimized solution in the field of transmission lubrication, by means of which a reduction in the pressure loss of the lubricating material flowing in the oil circuit of the engine housing and the transmission housing can be caused.

The invention proceeds from a closure element for closing a flow-conducting component, in particular a housing, which has at least one component-side fluid opening, at which at least two fluid channels meet, which form a branching in the interior of the component.

According to the invention, it is provided that the closure element has at least one sealing element which seals the at least one fluid opening in the assembled state (sometimes referred to as the assembled state) and comprises at least one contour element (kontenselement), wherein the contour element has at least two openings with a cross-sectional contour at least two interfaces of the contour element, which in the assembled state of the closure element (and component) corresponds in the region of the bifurcation to the cross-sectional contour of the openings of the at least two fluid channels in terms of their position and their cross-sectional shape. In an advantageous manner, the consistency achieved in the assembled state by the position and the cross-sectional shape of the fluid channel of the component and the cross-section of the opening of the contour element of the closing element forms a closing element that is optimized with respect to flow technology by pressure losses.

Provision is preferably made for the contour element to be designed as an insert (Einleger) with an outer contour of the component which, in the assembled state of the closure element and the component, corresponds in the region of the bifurcation to an inner contour of the component in the region of the bifurcation (Freimachung) within the component.

It is preferably provided that at least the cross section of the profile element is designed cylindrically, so that in the assembled state of the closure element and component, at least the cross section of the profile element in the region of the branching corresponds to the likewise cylindrical cross section of the openings of the at least two fluid channels, at least in the assembly region.

In this case, provision is not made for the inner contour of the contour element to be of cylindrical design outside of the opening which is connected to the fluid channel in the installation region. In other words, in one embodiment, it is provided that the inner contour of the contour element is configured as a non-cylindrical tube, in particular as an arch with an oval inner contour, so that only the cross section of the opening of the contour element in the assembled state of the closure element and component in the region of the bifurcation corresponds to the cross section of the openings of the at least two fluid ducts which is cylindrical in the assembled region. This means that the cylindrical cross section of the opening transitions within the profile element into a further non-cylindrical (for example oval) inner profile, which requires little installation space within the profile element. In an advantageous manner, this design makes it possible to design the housing of the profile element even smaller, although slightly deviating from the flow behavior of the optimum low pressure loss in the profile element in the case of a small available space, since the inner profile requires a small installation space, so that the profile element can be accommodated in the smaller space in the housing, as it were, by means of its miniaturization.

In a further preferred embodiment, provision is made for the inner contour of the contour element to be likewise of cylindrical design outside the opening which is connected to the fluid channel in the installation region. In other words, the inner contour of the contour element is likewise designed as a cylindrical tube, so that both the cross section of the opening of the contour element and the inner contour of the contour element in the assembled state of the closure element and the component in the region of the bifurcation correspond to the cross section of the openings of the at least two fluid channels which is cylindrical in the assembly region, as a result of which an optimum flow technology is advantageously achieved in view of the cylindrical inner contour design of the contour element itself and in view of the transition between the fluid channels which are cylindrical in cross section at least in the coupling region in the housing and the cylindrical cross section of the elbow (Rohrbogen) in the contour element.

Furthermore, it is preferably provided that the inner contour of the contour element is configured as a cylindrical bent tube with an angle between >0 ° and < =180 °. In other words, the invention can be applied in an advantageous manner to all branches in different directions.

In a preferred embodiment of the invention, the outer component contour of the insert has a positioning element, in particular a positioning pin, which engages in a positioning hole of the inner component contour of the recess in the region of the bifurcation in the assembled state of the closure element and the component. With such or similar solutions, the positioning of the closure element by the worker (in particular in order to simplify assembly) can be simplified and can be designed without errors and can be carried out reliably.

In a further embodiment, the positioning element can likewise be omitted. It is then provided that the position of the insert is ensured in such a way that, in particular in the case of automatic production by means of a device for production, in particular a robot, the desired set position is ensured for the structure space provided for this purpose, wherein the insert and likewise the sealing element are preferably fitted (inserted) into the structure space provided for this purpose with a light press fit.

In a number of possible embodiments and associated variant embodiments, it is provided that the closure element is formed in one piece or in two or three pieces from at least one sealing element and at least one profile element, as explained in detail in the description.

In a particularly advantageous embodiment, provision is made for the subcomponent of the two-part profile element to have a positioning collar (sometimes referred to as a positioning nose) and the other subcomponent of the two-part profile element to have a positioning opening (positioning) which, in the fitted state of the two-part profile element, correspond to the position and cross section of the outer contour or inner contour in view of its positioning collar and positioning opening and engage with one another. In an advantageous manner, the production of the contour element of the closing element is significantly simplified, as explained in more detail in the description.

It is preferably further provided that the sub-parts are formed separately along the inner contour of the contour element of the non-cylindrical or cylindrical bent tube, so that a dividing plane (Teilungsebene) is formed which divides the inner contour of the non-cylindrical or cylindrical bent tube of the contour element into two half-shells, wherein the sub-parts are clamped, glued or welded in the assembled state.

In addition, different embodiments are provided for the sealing element of the closure element for sealing the fluid opening on the opposite component side in the assembled state, wherein the sealing element is either designed as a press-in part or as a seal or as a weld part, as explained in more detail in the description.

Preferably, the one-piece or multi-piece closure element is constructed, optionally completely, from plastic, in particular from lightweight heat-resistant plastic, or from metal or from a combination of the aforementioned materials.

The closing element, in other words the flow-optimized plug according to the invention, can be used in all transitions or distributions of the fluid openings in the housing, in particular in the engine housing, the cylinder head housing, the transmission housing or the air conditioning housing or the like.

Drawings

The invention is explained below with the aid of the figures.

Wherein:

fig. 1 shows a section through the housing side of the lubricating material channel of a first conventional closure element with a lubricating material bore opening, in particular a spherical closure element;

fig. 2 shows a section through the housing side of an orthogonal bifurcation of a second conventional closure element, in particular a plug screw, arranged in the bifurcation with a lubricant bore opening;

fig. 3 shows a section through the housing side of an orthogonal bifurcation with a lubricant passage of a first type of closure element according to the invention arranged in the bifurcation;

fig. 4 shows a cross section through the housing side of an orthogonal bifurcation with a lubricant passage of a second type of closure element according to the invention arranged in the bifurcation;

FIG. 5A shows a perspective view (without the housing) of a multi-piece third closure element in a partially assembled state of the first sub-assembly with the sealing element;

FIG. 5B shows in a single illustration the first subcomponent of the third type of closure element according to FIG. 5A before assembly;

FIG. 5C shows in a single illustration a second subcomponent of a third type of closure element prior to assembly;

fig. 6 shows a section through the housing side of an orthogonal bifurcation with a lubricant passage of a first closure element according to the invention arranged in the bifurcation in an embodiment variant;

fig. 7A shows a section through the housing side of an obtuse-angled branch with a lubricant duct of a fourth closure element according to the invention arranged in the branch;

fig. 7B shows in the middle picture a section through the housing side of the obtuse-angled branch with the lubricant duct of a fourth closure element according to the invention arranged in the branch, wherein the upper picture in the perspective view shows the two-part closure element in the first embodiment and the lower picture shows the housing region of the housing in the assembled state with the fourth closure element in the two-part embodiment;

fig. 7C shows in the middle picture a section through the housing side of the obtuse-angled branch with the lubricant duct of a fourth closure element according to the invention which can be arranged in the branch, wherein the upper picture in the perspective view shows the three-piece closure element in the second embodiment variant and the lower picture shows the housing region of the housing in the assembled state with the fourth closure element in the three-piece embodiment variant.

List of reference numerals

10 branching in a member

11 first channel

11-1 first passage opening

12 second channel

12-1 second channel opening

A first closure element (prior art)

B second closing element (prior art)

G component and shell

Opening of G1 hole

G2 vacation

G2_IKInner contour of member, inner contour of housing

G2.1_IKLocating hole

G4 vacation

G4_IKInner contour of member, inner contour of housing

Weld joint of G14A between G1 and 4A

Longitudinal direction of Z-hole opening G1

1 first closure element

1A sealing element

1B Profile element, insert

1B_IKInsert inner profile

1B_AKOuter contour of insert

1B-1 opening

1B-2 opening

1B-3 positioning element, positioning pin

1 first closing element in a variant embodiment with positioning pins 1B-3

2 second closure element

2A sealing element

2B profile element, insert

2B_IKInsert inner profile

2B_AKOuter contour of insert

2B-1 opening

2B-2 opening

3 third closing element

3A sealing element

3A-1O-ring

3B profile element, insert

3B' first sub-component

3B' -1 positioning flange

3B' second sub-component

3B '' -2 positioning opening

3B_IKInsert inner profile

3B'_IKInner contour of insert part half

3B_AKOuter contour of insert

4 fourth closure element

4A sealing element

4B profile element, insert

4B' first sub-component

4B '' second sub-assembly

4B-1 opening

4B-2 opening

4B_IKInsert inner profile

4B_AKThe outer profile of the insert.

Detailed Description

Fig. 1 shows a section through an orthogonal branch 10 of the

lubricant duct

11,12 in the housing G, in which a first conventional closing element a is arranged in the lubricant duct opening G1, wherein the closing element a is a spherical closing element in the form of a spherical plug which is pressed into the lubricant duct opening G1 with a predeterminable interference in a sealing manner. The branch 10 connects the first passage 11 and the second passage 12. The branching 10 and the

channels

11,12 are partial regions of a line (Galerie) formed from a plurality of channels, which are arranged, for example, in an engine housing, a cylinder head housing, a transmission housing or an air conditioning housing or the like.

Fig. 2 shows a section through the orthogonal branch 10 of the

lubricant ducts

11,12 in the housing G, in which a second conventional closing element B is arranged in the lubricant duct opening G1, wherein the closing element B is a conventional cylindrical closing element B in the form of a screw plug which is screwed into the lubricant duct opening G1 by means of its external thread (not shown) against an internal thread (not shown) on the housing side. The bifurcation 10 in turn connects a first passage 11 with a second passage 12.

As is apparent from fig. 1 and 2 and the accompanying description, the diversion of the lubricant flow into the branching 10 produced by drilling is disadvantageous in terms of flow, in particular for branches with an angle of >30 °, so that the flow resistance and thus also the pressure loss rise, thereby forming losses which are eliminated by the object of the invention, as is explained in more detail below.

The first embodiment:

fig. 3 shows a section through the housing side of an orthogonal branch 10 with a

first lubricant duct

11,12 of the closure element 1 according to the invention arranged in the branch 10.

The closure element 1, that is to say the flow-optimized, pressure-loss-optimized first closure according to the first embodiment, is for example two-part and comprises a sealing element 1A and a contour element 1B.

The sealing element 1A is a plate plug in the form of a cover plate, which is provided with a predeterminable interference with respect to the lubricant hole opening G1 and which, in the assembled state, is pressed into the lubricant hole opening G1 in a sealing manner, so that no fluid, in particular no lubricant, can flow out of the lubricant hole opening G1 from the branching 10 or the

channel

10,11, 12.

In a first embodiment, the contour element 1B is an insert or an insert element, in particular an insert cylinder.

In the housing G, a recess G2 is preferably provided in the region of the bifurcation 10, said recess having a housing inner contour G2_IKThe inner contour of the housing allows the cross section of the passage openings 11-1,12-1 to be passed through the inner contour 1B of the insert, which is optimized with regard to flow technology by pressure losses_IKAre connected to each other. The insert 1B has an insert outer contour 1B_AKWhich is in contact with the inner shell contour G2 of the recess G2_IKAnd (7) corresponding. Insert inner contour 1B_IKA flow-technically optimized circular arch is formed, which in this exemplary embodiment is formed orthogonally, wherein the circular arch has openings 1B-1 and 1B-2 at the channel-side boundary surface of the insert 1B, the position of which corresponds precisely and in terms of its cross section to the cross section of the channel openings 11-1 and 11-2.

In the case of assembly, the insert 1B is brought into the recess G2 of the housing G in a first step, wherein the sealing element 1A is pressed into the lubricating material bore opening G1 in a second step.

In a second embodiment:

fig. 4 shows a section through the housing side of an orthogonal branch 10 with a

lubricant passage

11,12 of a second closure element 2 according to the invention arranged in the branch 10.

The closing element 2, that is to say the second closure according to the second embodiment, which is optimized with regard to flow losses, is for example one-piece and comprises a sealing element 2A and a contour element 2B.

The sealing element 1A is designed as a bulge which is provided with a predeterminable interference with respect to the lubricant hole opening G1 and which is pressed into the lubricant hole opening G1 in the assembled state in a sealing manner, so that no fluid, in particular no lubricant, can flow out of the lubricant hole opening G1 from the branching 10 or the

channel

10,11, 12.

The profile element 2B according to the second embodiment is likewise an insert or insert element, in particular an insert cylinder, which has a bulge 1A on its upper side which, in the assembled state, projects into the lubricant hole opening G1. The sealing element 2A and the contour element 2B thus form a one-

piece insert

2A, 2B.

In the housing G, in the region of the bifurcation 10, a recess G2 is preferably again provided, which has a housing inner contour G2_IKThe inner contour of the housing allows the cross section of the passage openings 11-1,12-1 to pass through the inner contour 2B of the insert, which is optimized with regard to flow technology by pressure losses_IKAre connected to each other. The

inserts

2A,2B have an insert outer contour 2B_AKWhich is in contact with the inner shell contour G2 of the recess G2_IKAnd (7) corresponding. Insert inner contour 2B_IKA circular arch optimized with respect to fluid technology with respect to pressure losses is formed, which in this exemplary embodiment is formed orthogonally, wherein the circular arch has openings 2B-1 and 2B-2 at the interface of the channel side of the insert 2B, the position of which corresponds precisely and in terms of its cross section to the cross section of the channel openings 11-1 and 11-2.

In the case of assembly, the

insert parts

2A,2B are brought into the recess G2 of the housing G in a single step, wherein the sealing element 1A is pressed into the lubricant bore opening G1 in this step.

In a third embodiment:

fig. 5A shows a perspective view (without a housing) of a multi-part third closure element 3 in the partially assembled state of the first subsection 3B 'of the contour element 3B with a sealing element 3A arranged on the first subsection 3B' of the contour element 3B.

Fig. 5B shows, in a single illustration, a first subcomponent 3B' of a profile element 3B of the third closure element 3 according to fig. 5A before assembly.

Fig. 5C shows, in a single illustration, the second subcomponent 3B ″ of the profile element 3B of the third closing element 3 before assembly.

The third closing element 3 is characterized in that a possibility for reducing the production costs is found in order to create a closure that is optimized with respect to flow technology by pressure losses.

The

profile elements

3B, 3B',3B ″ described below, which are of multi-part, in particular two-part, design, can for example replace the profile element 1B of the first embodiment or the profile element 2B of the second embodiment. Likewise, a fourth contour element 4B (see fig. 7 above), which is also described below, of the fourth closing element 4 can be configured in this way, as will also be explained.

The basic idea of a two-

part profile element

3B, 3B ',3B ″ is that the inner profile 3B of the insert, which is optimized with respect to flow technology by pressure losses, of the

profile element

3B, 3B',3B ″ designed as an insert is_IKIn order to reduce the production costs, two sub-components, in particular the partial halves 3B' and 3B ″, are produced.

Provision is preferably made for the parting plane of the sub-parts 3B',3B ″ to run along the inner contour, whereby complex shape parting by undercuts is avoided. In other words, the dividing plane divides the bend in the contour element 3B, which is circular in this embodiment, into two half-shells 3B',3B ″. The sub-components 3B',3B ″ are brought together after their production in the assembled state and are clamped, glued or welded together in particular.

In the mounted state of the closure element 3, the gap between the spliced partial parts 3B',3B ″ extends in the direction of the longitudinal extent (reference Z, see fig. 3,4,5A to 5C and 6,7) of the lubricant hole opening G1.

In a preferred embodiment of the invention, one of the sub-parts 3B ',3B "(in this embodiment the first sub-part 3B ') preferably has two positioning flanges 3B ' -1 which correspond in terms of contour and positioning to the positioning openings 3B" -2 in the other sub-part 3B ", so that a simple assembly is possible by introducing the positioning flanges 3B ' -1 into the positioning openings 3B" -2, wherein the insert inner contour 3B ' of the part halves 3B ' -1 and 3B "-2 '_IK,3B''_IKAfter assembly, the inner contour 3B of the insert, which is optimized with respect to flow and pressure loss, is formed_IK。

Insert inner contour 3B of a third embodiment of a closure element 3_IKThe circular arch, which is optimized with regard to flow technology with regard to pressure losses, is designed in this exemplary embodiment again orthogonally, wherein the circular arch has openings 3B-1 and 3B-2 at the channel-side boundary surface of the insert 3B, the position of which corresponds precisely and in terms of its cross section to the cross section of the channel openings 11-1 and 11-2 (see fig. 3 and 4).

Insert inner contour 3B of insert 3B_IKTo lowerLow production costs can be achieved by the two halves 3B',3B ″ being made of plastic in one mould. Alternatively, the half bodies 3B',3B ″ can be made of aluminum as a pressed piece.

The sealing element 3A is preferably likewise a sub-element and has an O-ring 3A-1 for sealing against the lubricant bore opening G1.

The closure element 3 according to the third embodiment is therefore of three-piece design.

In the assembled state, the two-

part insert

3B, 3B',3B ″ is connected to one another in a first step. Subsequently, the sealing element 3A is inserted on the

insert

3B, 3B',3B ″, wherein the receptacle has a receiving recess at its bottom, which is in contact with the outer contour 3B of the insert 3B_AKAnd (7) corresponding. Finally, the closing element 3 is brought into the recess G2 of the housing G after the preliminary completion, wherein the sealing element 1A is pressed into the lubricant bore opening G1 in this step. It is obvious that, likewise, the insert 3B can be brought into the recess G2 of the housing G after its partial completion without the sealing element 3A, so that the sealing element 1A is then only pressed into the lubricant bore opening G1.

Fig. 6 shows a cross section through the housing side of the orthogonal branch 10 with the

lubricant duct

11,12 of the first closure element 1 according to the invention arranged in the branch 10 in an embodiment variant.

This embodiment variant of the contour element 1B of the first closure element 1 (see fig. 3), to which reference is made, can be transferred and applied to all the

other closure elements

2,3 and 4 of the second, third and fourth embodiments.

Characterised by the fact that the recess G2, now a modified housing contour G2_IKWith additional locating holes G2.1_IK(particularly at the bottom of the void G2).

The profile element 1B has positioning pins 1B-3 which, in the assembled state, are inserted into the positioning holes G2.1_IKIn (1). The position of the positioning pins 1B-3 is selected and arranged in such a way that the channel-side boundary surface of the insert 1B with its openings 1B-1 and 1B-2 after assembly corresponds exactly in position and in view of its cross section to the cross section of the channel openings 11-1 and 11-2Thereby, an assembly aid is made available for the worker, which avoids installation errors of the corresponding insert 1B according to this embodiment variant and of the similarly configured

inserts

1B,2B,3B,4B of the further embodiment.

In addition, the

corresponding closure elements

1,2,3,4 are prevented from being positioned in the housing positioning bore G2.1_IKAnd (4) fixing the middle torsion.

Furthermore, a drilled housing inner contour G2 of a recess G2 in the housing G is disclosed_IKA milling portion (not shown) at the periphery into which the corresponding positioning element of the

respective insert

1B,2B,3B,4B engages in the assembled state.

Furthermore, it is disclosed that in the case of assembly, it can be ensured that the

closure element

1,1 x, 2,3,4, in the case of automated assembly with the housing G or in the case of insertion into the housing G, is precisely oriented and positioned in a functionally satisfactory position relative to the housing G and is preferably automatically pressed in a corresponding recess G2 of the housing G.

A fourth embodiment:

fig. 7 shows a section through the housing side of the branching 10, which is obtuse in this exemplary embodiment, with the

lubricant duct

11,12 of the fourth closing element 4 according to the invention arranged in the branching 10. As is clear from this fig. 7, each branch 10, independently of its angle between the

channels

11,12, can be provided with a corresponding embodiment of the closure element according to the invention. The angle of the bifurcation 10 in all embodiments is formed by the imaginary central longitudinal axes of the mostly

cylindrical passages

11,12 meeting at one point in the bifurcation.

The closing element 4, that is to say the flow-optimized, pressure-loss-optimized fourth closure according to the fourth embodiment, is for example two-part and comprises a sealing element 4A and a contour element 4B.

In a fourth embodiment, the sealing element 4A is a separate cover plate, in particular an oval cover plate, which is connected to the housing G for sealing the lubricant port opening G1 by means of a weld G14A, so that fluid, in particular lubricant, cannot flow out of the lubricant port opening G1 from the branching 10, for example the

channels

10,11, 12.

In the fourth embodiment, the contour element 4B is likewise an insert or insert element, which is configured in its approximately oval shape in plan view (in the view of the lubricant hole opening G1) as an insert outer contour 4B_AKWhich is adapted correspondingly to the housing inner contour G4 of the recess G4_IK。

In the housing G, a recess G4 is preferably provided in the region of the bifurcation 10, said recess having a housing inner contour G4_IKThe inner contour of the housing allows the cross section of the passage openings 11-1,12-1 to pass through the inner contour 4B of the insert, which is optimized with regard to flow technology by pressure losses_IKAre connected to each other. The insert 4B has an insert outer contour 4B_AKWhich is in contact with the inner shell contour G4 of the recess G4_IKAnd (7) corresponding. Insert inner contour 4B_IKIs designed as an obtuse-angled arch optimized in terms of flow technology, wherein the obtuse-angled arch has openings 4B-1 and 4B-2 at the channel-side boundary surface of the insert 4B, the position of which corresponds precisely and in terms of its cross section to the cross section of the channel openings 11-1 and 11-2.

In the assembled state, the insert 4B is brought into the recess G4 of the housing G in a first step, wherein the sealing element 4A is inserted and welded into the lubricating material bore opening G1 in a second step, as explained above.

In a fourth embodiment of the first embodiment variant:

fig. 7B shows in the middle picture a section through the housing side of the obtuse-angled branch 10 with the

lubricant duct

11,12 of the fourth closure element 4 according to the invention which can be arranged in the branch 10 in the first embodiment variant, wherein correspondingly the upper picture in the perspective view shows the two-part closure element formed by the sub-parts 4A,4B' and the sub-part 4B ″ and the lower picture shows the housing region of the housing G in the assembled state with the fourth closure element in the two-part embodiment variant.

The two-part closure element 4 comprises, on the one hand, a sealing element 4A and a partial part 4B' of the profile element 4B. On the other hand, the second part of the closure element 4 is constituted by another subcomponent 4B ″ of the profile element 4B.

It is provided that the two-part profile element is formed from a sub-part 4A, B 'and a sub-part 4B ″, wherein the inner profile 4B of the insert, which is optimized with respect to flow technology by pressure losses, of the

profile element

4A,4B,4B',4B ″, which is formed as an insert_IKIn order to reduce the production costs, two sub-components are again used.

The feature is that in this exemplary embodiment the first partial part 4B' of the contour element 4B is already formed in one piece with the sealing element 4A as a single part. The second component is configured as a second subcomponent 4B '' of the profile element 4B ''.

It is preferably provided that the parting plane of the partial parts 4B',4B ″ also extends along the inner contour, whereby complex shape parting by undercuts is likewise avoided. In other words, the dividing plane further divides the bend in the contour element 4B, which is circular in this embodiment, into two half-shells 4B',4B ″. The sub-components 4A,4B' and the sub-component 4B ″ are brought into the assembled state after their production and are in particular clamped or glued together.

In the mounted state of the closing element 4, the gap between the spliced

parts

4A,4B' and 4B ″ extends in the direction of the longitudinal extent (reference Z, see fig. 7A) of the lubricating material bore opening G1.

In a preferred embodiment of the invention, the

components

4A,4B 'and 4B ″ can have, like the third embodiment, a positioning collar which, in terms of its contour and positioning, corresponds to a positioning opening in the other sub-component, so that a simple assembly is possible by introducing the positioning collar into the positioning opening, wherein the insert inner contour 4B' of the partial halves 4B '-1 and 4B ″ -2'_IK,4B''_IKAfter assembly, the inner contour 4B of the insert, which is optimized with respect to flow and pressure loss, is formed_IK。

Insert inner contour 4B of a fourth embodiment of a closure element 4 of the first embodiment variant_IKConstructed to be flow-technically optimized by pressure loss>A 90 ° arch, which is formed in this exemplary embodiment at an obtuse angle, whereinThe arch has openings 4B-1 and 4B-2 at the interface of the channel side of the insert 4B (see fig. 7A), the position of which corresponds exactly and in view of its cross section to the cross section of the channel openings 11-1 and 11-2.

Insert inner contour 4B of insert 4B_IKIn order to reduce the production costs, the two halves 4B',4B ″ can be produced from plastic in a mold. Alternatively, the half-bodies 3B',3B ″ can be produced as a pressed piece from aluminum.

The sealing element 4A, which is formed in one piece with the first sub-part 4A', is a separate cover plate, which is formed in an oval manner in this exemplary embodiment, for sealing against the lubricant opening G1. According to the invention, it is provided that the cover plate 4A obtains its function as a sealing element in such a way that it is welded to the housing G at its periphery. It is obvious that the cover plate 4A can also be pressed as a press-in part (see first embodiment) into the lubricant hole opening G1 or it can be provided with an O-ring and can therefore be sealed against the inner surface of the lubricant hole opening G1 by means of an O-ring (see third embodiment).

The closure element 4 according to the third embodiment is therefore two-part in the first embodiment variant.

In the assembled condition, the two-part insert (i.e. the parts 4A;4B ' and 4B ' ') are connected to each other in a first step. The contour element 4B of the closure element 4 with the associated sealing element 4A, which is produced by the assembly, is brought into the recess G2 of the housing G after the preliminary completion. Here, the sealing element 4A is brought and positioned simultaneously with the contour element 4B into the lubricating material bore opening G1, after which the cover plate 4A is welded on the circumferential side at the housing G.

In a fourth embodiment of the second embodiment variant:

fig. 7C shows in the middle picture a section through the housing side of the obtuse-angled branch 10 with the

lubricant duct

11,12 of a fourth closure element according to the invention which can be arranged in the branch in the second embodiment variant, wherein correspondingly the upper picture in the perspective view shows a three-piece closure element with the subcomponent 4A, the subcomponent 4B' and the subcomponent 4B ″ and the lower picture shows the housing region of the housing G in the assembled state with the fourth closure element in the three-piece embodiment variant.

The three-piece closure element 4 comprises, separately from one another, a sealing element 4A as a first subcomponent, a subcomponent 4B' of the profile element 4B and a further subcomponent 4B ″ of the profile element 4B.

It is provided that a two-

part profile element

4B,4B '' is formed, wherein the inner profile 4B of the insert, which is optimized with respect to flow technology by pressure loss, of the

profile element

4B,4B '' formed as an insert_IKIn order to reduce the production costs, the two sub-parts, in particular the partial halves 4B' and 4B ″, are again produced.

Provision is preferably made for the parting plane of the sub-parts 4B',4B ″ to run along the inner contour, whereby complex shape parting by undercuts is avoided. In other words, the dividing plane divides the bend in the circular profile element 4B into two half-shells 4B',4B ″. The sub-components 4B',4B ″ are clamped, glued or welded together in the assembled state after their production by the tape.

In the mounted state of the closure element 4, the gap between the spliced partial parts 4B',4B ″ extends in the direction of the longitudinal extent (reference Z, see fig. 7A) of the lubricant hole opening G1.

In a preferred embodiment of the invention, the sub-parts 4B ',4B ″ can have, in a manner similar to the third embodiment, a positioning collar which, in terms of its contour and positioning, corresponds to a positioning opening in the other sub-part, so that a simple assembly is possible by introducing the positioning collar into the positioning opening, wherein the insert inner contour 4B' of the part halves 4B '-1 and 4B ″ -2'_IK,4B''_IKAfter assembly, the inner contour 4B of the insert, which is optimized with respect to flow and pressure loss, is formed_IK。

Insert inner contour 4B of a fourth embodiment of a closure element 4 of the first embodiment variant_IKConstructed to be flow-technically optimized by pressure loss>A 90 ° arch, which is designed in this exemplary embodiment at an obtuse angle, the arch having an intersection at the channel side of the insert 4BThe openings 4B-1 and 4B-2 (see FIG. 7A), the position of which corresponds exactly and in view of their cross section to the cross section of the passage openings 11-1 and 11-2.

Insert inner contour 4B of insert 4B_IKCan be produced from plastic in a mold from two halves 4B',4B ″ in order to reduce the production costs. Alternatively, the half-bodies 3B',3B ″ can be produced as a pressed piece from aluminum.

The sealing element 4A is preferably likewise a subcomponent and, for sealing against the lubricant hole opening G1, is a separate cover plate, which in this exemplary embodiment is of oval design. According to the invention, it is provided that the cover plate 4A obtains its function as a sealing element in such a way that it is welded to the housing G at its periphery. It is clear that the cover plate 4A can likewise be pressed as a press-in part (see first embodiment) into the lubricant hole opening G1 or it can be provided with an O-ring and can therefore be embodied in a sealing manner via the O-ring (see third embodiment) against the inner face of the lubricant hole opening G1.

The closing element 4 according to the fourth embodiment is therefore three-piece in the second embodiment variant.

In the assembled state, the two-

part insert pieces

4B,4B '' are connected to one another in a first step. The contour element 4B of the closing element 4 is brought into the recess G2 of the housing G after the preliminary completion. Subsequently, the sealing element 4A is brought into the lubricant hole opening G1 and welded to the housing G, for example, on the circumferential side.

By having a flow-optimized inner contour 1B of the bore_IK,2B_IK,4B_IK,4B_IKThe particular use of the

closure elements

1,2,3,4 in the bifurcation 10 results in a permanently reduced flow resistance.

The one-piece or

multi-piece closure element

1,2,3,4 may optionally be made entirely of plastic, lightweight heat-resistant plastic or metal or a combination of materials.

The

closure elements

1,2,3,4 can be produced, for example, by so-called Rapid Prototyping. The respective closure element is constructed in layers from a material that is non-shaped or neutral in shape, using physical and/or chemical effects.

These embodiments always describe the transition of the two

channels

11,12 in the branch 10. Obviously, with more than two>2) The distribution of the

channels

11,12 to be connected to one another can likewise, according to the principles of the invention, be a corresponding bore contour 1B of the

contour elements

1B,2B,3B,4B_IK,2B_IK,3B_IK,4B_IKIs constructed such that three or more channels can be connected to one another with flow-optimized and reduced pressure losses.

The solution according to the invention is clearly improved compared to document EP 1077357B 1, since the diversion of the fluid flow, in particular of the lubricant flow, is not only achieved via a partially embodied, spherically fan-shaped deflecting surface, but the flow is also more advantageously arched in the transition between the

channel elements

11,12, so that the entire deflecting area is covered by the

cylindrical bore contour

1B_IK,2B_IK,4B_IK,4B_IKThe arching of the

profile elements

1B,2B,3B,4B, the dead space formation (Totraumbildung), the secondary flow and the friction at the arching wall are significantly reduced compared to conventional plugging solutions with a vertical transition on the inner side of the flow.

Claims

1. Closure element (1,2,3,4) for closing a flow conducting component, in particular a housing (G), having at least one component-side fluid opening (G1) at which at least two fluid channels (11,12) meet, which form a branching (10) in the interior of the component (G),

it is characterized in that the preparation method is characterized in that,

the closure element (1,2,3,4) has at least one sealing element (1A,2A,3A,4A) which, in the assembled state, seals the at least one fluid opening (G1), and

comprising at least one contour element (1B,2B,3B,4B), wherein the contour element (1B,2B,3B,4B) has at least two openings (1B-1,1B-2;2B-1,2B-2;3B-1,3B-2;4B-1,4B-2) with a cross-sectional contour at least two interfaces of the contour element (1A,2A,3A,4A), which in the assembled state of the closure element (1,2,3,4) and the component (G) corresponds in the region of the bifurcation (10) to the cross-sectional contour of the openings (11-1,12-1) of the at least two fluid channels (11,12) in view of their position and their cross-sectional shape.

2. Closure element (1,2,3,4) according to claim 1, characterized in that the profile element (1A,2A,3A,4A) is configured with a component outer profile (1B)_AK,2B_AK,3B_AK,4B_AK) In the assembled state of the closure element (1,2,3,4) and the component (G), an inner component contour (G2) of a recess (G2, G4) in the region of the bifurcation (10) and in the region of the bifurcation within the component (G)_IK,G4_IK) And (7) corresponding.

3. Closure element (1,2,3,4) according to claim 1, characterized in that at least the cross section of the opening (1B-1,1B-2;2B-1,2B-2;3B-1,3B-2;4B-1,4B-2) of the profile element (1B,2B,3B,4B) is cylindrically configured such that at least the cross section of the opening (1B-1,1B-2;2B-1,2B-2;3B-1,3B-2;4B-1,4B-2) of the profile element (1B,2B,3B,4B) in the assembled state of the closure element (1,2,3,4) and the component (G) is in the region of the bifurcation (10) in cooperation with the at least two fluid channels (11,12) at least in the mounting region, corresponds to the cylindrical cross section of the opening (11-1, 12-1).

4. Closure element (1,1 x, 2,3,4) according to claims 1 and 3, characterized in that the inner profile (1B) of the profile element (1A,2A,3A,4A)_IK,2B_IK,3B_IK,4B_IK) The tube is configured to be non-cylindrical, such that only the cross section of the opening (1B-1,1B-2;2B-1,2B-2;3B-1,3B-2;4B-1,4B-2) of the contour element (1B,2B,3B,4B) corresponds in the assembled state of the closure element (1, 2B,3, 4) and the component (G) in the region of the branching (10) to the cross section of the opening (11-1,12-1) of the at least two fluid channels (11,12) that is cylindrical in the assembled region.

5. Closure element (1,1 x,2,3,4) characterized in that the inner contour (1B) of the contour element (1A,2A,3A,4A)_IK, 2B_IK, 3B_IK, 4B_IK) Is designed as a cylindrical tube, so that not only the cross-section of the opening (1B-1,1B-2;2B-1,2B-2;3B-1,3B-2;4B-1,4B-2) of the profile element (1B,2B,3B,4B) but also the inner profile (1B) of the profile element (1A,2A,3A,4A)_IK, 2B_IK, 3B_IK, 4B_IK) In the assembled state of the closure element (1,2,3,4) and the component (G), in the region of the branching (10), corresponds to the cylindrical cross section of the openings (11-1,12-1) of the at least two fluid channels (11,12) in the assembly region.

6. Closure element (1,1 x, 2,3,4) according to claim 4 or 5, characterized in that the inner profile (1B) of the profile element (1B,2B,3B,4B)_IK,2B_IK,3B_IK,4B_IK) Is constructed with at>0 DEG and</=180 ° non-cylindrical or cylindrical bends.

7. Closure element (1) according to claim 2, characterized in that the component outer contour (1B) of the insert is_AK) Having a positioning element, in particular a positioning pin (1B-3), which, in the assembled state of the closure element (1) and the component (G), engages in the region of the fork (10) into a component inner contour (G2) of the recess (G2)_IK) Positioning hole (G2.1)_IK) In (1).

8. Closure element (1,2,3,4) according to claim 1, characterized in that the closure element (1,2,3,4) is constructed in one piece or in two or three pieces from the at least one sealing element (1A,2A,3A,4A) and the at least one profile element (1B,2B,3B,4B), wherein,

the sealing element (2A) and the contour element (2B) are connected to one another in one piece, or

The sealing element (1A,4A) and the contour element (1B,4B) are designed separately from one another in two parts, or

The sealing element (3A,4A) and the two-part contour element (3B;3B ',3B' '/4B;4B',4B '') are designed separately from one another in three parts.

9. Closure element (3) according to claim 8, characterized in that the subcomponent (3B ',4B ') of the two-part profile element (3B;3B ',3B "/4B; 4B ', 4B") has a positioning flange (3B ' -1) and the other subcomponent (3B ',4B ') of the two-part profile element (3B;3B ',3B "/4B; 4B ', 4B") has a positioning opening (3B "-2), which, in the assembled state of the two-part profile element (3B;3B ',3B ' '/4B;4B ',4B ' '), correspond to and engage with each other in view of the position and cross section of the outer or inner contour of the positioning flange (3B ' -1) and the positioning opening (3B ' ' -2) thereof.

10. Closure element (3) according to claims 4 or 5 and 7, characterized in that said sub-components (3B ',3B "/4B', 4B") follow the inner contour (1B) of a non-cylindrical or cylindrical curved tube contour element (1B,2B,3B,4B)_IK,2B_IK,3B_IK,4B_IK) So as to form a dividing plane which divides the inner contour (1B) of the cylindrical bent tube of the contour element (1B,2B,3B,4B)_IK,2B_IK,3B_IK,4B_IK) Is divided into two half-shells (3B ',3B' '/4B',4B ''), wherein the sub-components (3B ',3B' '/4B',4B '') are clamped or glued in the assembled state.

11. Closure element (1,2,3,4) according to claim 1, characterized in that the sealing element (4A) of the closure element (1,2,3,4) is intended for sealing against a fluid opening (G1) on the component side in the assembled state

Either configured as a press-in piece,

either with the provision of a seal or with the provision of a seal,

or configured as a weld.

12. The closure element (1,2,3,4) according to claim 1, characterized in that the one-piece or multi-piece closure element (1,2,3,4) is optionally constructed entirely of plastic, in particular a lightweight, heat-resistant plastic, or of metal or a combination of the aforementioned materials.