EP3969753A1

EP3969753A1 - Hydraulic supply system for a vehicle

Info

Publication number: EP3969753A1
Application number: EP20722509.5A
Authority: EP
Inventors: Nico Kullen; Fabian ELWISCHGER; Torsten Stickel; Marcus CLEV; Benjamin Hirth
Original assignee: Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Current assignee: Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Priority date: 2019-05-15
Filing date: 2020-04-22
Publication date: 2022-03-23
Also published as: CN113825908A; US20220228582A1; DE102019112677A1; WO2020229111A1

Abstract

The invention relates to a hydraulic supply system (10) for at least one vehicle, in particular a rail vehicle, comprising at least one drive motor (12), at least one flange (14), at least one hydraulic pump (16) and at least one control plate (18) for receiving and/or controlling further electrical and/or hydraulic components (20) of the hydraulic supply system (10), wherein, in the mounted state, the flange (14) is secured on the drive motor (12) and on the hydraulic pump (16) for the mutual mechanical coupling thereof, and wherein the flange (14) is secured on the control plate (18), wherein the flange (14) also has at least one connector (26) for coupling the hydraulic pump (16) to the control plate (18), and wherein the flange (14) has at least one electrical coupling element (28) for electrically coupling the drive motor (12) to the control plate (18).

Description

description

Hydraulic supply system for a vehicle

The present invention relates to a hydraulic supply system for at least one vehicle, in particular a rail vehicle, with at least one drive motor, with at least one flange, with at least one hydraulic pump and with at least one control plate for receiving and / or controlling further electrical and / or hydraulic components of the hydraulic supply system.

In general, the function of a hydraulic supply system is that the hydraulic consumers of a rail vehicle (e.g. level control cylinders, brake systems, other hydraulic functional elements) have a controlled or

regulated, i.e. needs-based, hydraulic pressure or mass flow for

Is provided.

The constant technical development in vehicle construction and especially in

Rail vehicle construction requires a continuously decreasing installation space requirement with at least the same functionality density, e.g. to integrate additional functional elements into the vehicle, to save weight and material and / or to ensure simpler manufacture or assembly.

This requirement can also be applied to a hydraulic supply system for

Rail vehicles, or also referred to as a hydraulic unit, are transmitted, which should also take up less space, weight and material while maintaining the same functional scope.

Such hydraulic supply systems or hydraulic supply units are already known from the prior art.

So from DE 82 04 096 U1 a device for attaching a

Pump unit, consisting of an electric motor, pump bracket and pump, in particular hydraulic pump, shown on a bracket, with a further annular rubber-metal element is provided which is arranged between a flange of the pump bracket and the bracket.

Furthermore, DE 196 12 582 A1 discloses a drive unit for a vehicle that has an electric motor and a hydraulic pump with a suction port and a

Has pressure line for a hydraulic drive attached to the vehicle. The pump can be driven by the shaft of an electric motor. In order to dampen noise and / or to achieve improved explosion protection at the same time, preferably with good heat dissipation at the same time, the electric motor and pump are housed together as a structural unit in the hydraulic tank.

In addition, DE 10 2004 032 256 B3 shows a hydraulic unit for industrial trucks with a motor-pump unit that is attached directly to a tank, a return filter that has an elongated filter housing for a filter element that can be inserted into the tank through an opening, a hose connection as well as a

Having outlet opening, the filter element being arranged in the flow path between the hose connection and the outlet opening, a return hose between the motor-pump unit and the hose connection and a closure for the return filter, the return hose running inside the tank and the hose connection being arranged inside the tank

In addition, WO 2017/077060 A1 discloses a hydraulic device for a rail vehicle, which has a tank area for a hydraulic fluid, a motor with a pump for pumping the hydraulic fluid, a hydraulic

Circuit board for providing hydraulic fluid paths and for receiving hydraulic components, comprises a control area for controlling the hydraulic components and a housing. The tank area and control area are on opposite sides of the hydraulic

Interconnection board arranged.

Due to the designs of the hydraulic devices or hydraulic units from the prior art, there are still space-specific optimizations which the functional density of such hydraulic supply systems can be further optimized.

It is the object of the present invention to advantageously develop a hydraulic supply system of the type mentioned at the beginning, in particular

to the effect that the hydraulic supply system has a higher functionality density, can be operated safely and is optimized with regard to installation space, weight and costs.

This object is achieved according to the invention by a hydraulic supply system having the features of claim 1. It is then provided that a

Hydraulic supply system for at least one vehicle, in particular one

Rail vehicle, with at least one drive motor, with at least one flange, with at least one hydraulic pump and with at least one control plate for

Receipt and / or control of further electrical and / or hydraulic components of the hydraulic supply system is provided, wherein the flange in the assembled state is attached to the drive motor and to the hydraulic pump for their mutual mechanical coupling and wherein the flange is attached to the control plate, the flange furthermore has at least one connector for coupling the hydraulic pump to the control plate, and wherein the flange has at least one electrical coupling element for electrically coupling the drive motor to the control plate.

The connector can in particular be a hydraulic coupling such as a

Be hydraulic line. Any other suitable type of coupling or

Connection type is conceivable.

The invention is based on the basic idea that, against the background of the constantly growing space requirements in rail vehicle construction, a

Hydraulic supply system with a flange for the mutual connection of drive motor and hydraulic pump with increased functional integration is provided. The increased integration of additional functions by means of the flange ensures in particular the electrical and hydraulic coupling of Drive motor and hydraulic pump to the control plate. The control plate forms a

Interface element between the electrical and / or hydraulic components accommodated by them, such as valves, lines, connections or actuating elements as well as the drive motor and hydraulic pump, which supplies the components with hydraulic pressure. Incidentally, by means of the flange on the one hand with the

hydraulic fluid subjected to the desired operating pressure can be introduced into the control plate and, on the other hand, an electrical supply and control or regulation of the drive motor take place. The flange is designed in such a way that the cables required for this do not come into contact with the hydraulic fluid. Due to the high level of functional integration within the flange, an even more compact hydraulic supply system is made available that meets the steadily increasing installation space requirements, as described above, in an even better or

can meet in a more suitable manner.

Moreover, it can be provided that the flange is an integral part of the drive motor, with at least one mechanical receptacle for the hydraulic pump being formed by means of the flange. The structural design of the flange as an integral part of the drive motor allows a particularly space-saving

Coupling option between the flange and the drive motor, so that the space required for the hydraulic supply system can be further reduced or optimized. The flange thus forms an integral part of the

Drive motor that the flange and the drive motor in the assembled state form a common structural unit. The common structural unit can be realized in the assembled state by means of a common housing or by means of a common housing assembly.

The drive motor can, for example, be designed as an electric motor whose speed, torque or the output power resulting therefrom can be adjusted or adjusted.

is adjustable. The electric motor can be designed as a synchronous machine or as an asynchronous machine. The hydraulic pump is designed as a displacement pump, which with regard to the mass flow to be conveyed and the pump pressure of the controlled or

controlled drive motor is also adjustable. Types for a hydraulic pump can for example be a vane pump (rotary vane pump), a Gear pump (internally or externally toothed), a screw pump, an axial piston pump (inclined axis or swash plate), a radial piston pump (internally or externally pressurized), a reciprocating piston pump.

It is also conceivable that the connector is designed as at least one hydraulic line and / or as at least one hydraulic bore. The design as

Hydraulic line ensures a direct and loss-optimized flow path or supply path between the control plate and the hydraulic pump via the flange. For this purpose, the hydraulic line can either be guided within the flange in a corresponding bore or, for example, in the area of the flange or adjacent to it, e.g. outside the flange, by means of

be guided or attached to corresponding brackets. Under one

Hydraulic line can generally be any technical line element or

Device are understood, which is suitable for the purpose of guiding the pressurized hydraulic fluid or hydraulic oil from the hydraulic pump to the control plate. In particular, the hydraulic line can in particular be understood as a hydraulic hose or hydraulic pipe which connects the hydraulic pump to the control plate by means of the flange. The hydraulic bore is to be understood in particular as a recess in the flange, with the type and shape of the recess being able to assume a wide variety of configurations. The hydraulic bore can be designed as a bore, groove, recess, channel, opening, pocket, etc., of any shape.

It is also conceivable that the electrical coupling element as at least one

Flange cable bushing and / or is designed as at least one flange cable conduit. The flange cable bushing and / or the flange cable conduit ensure a reliable separation of the electrical coupling element from the

Connector. This separation is especially important and advantageous with regard to a safe and as trouble-free overall operation of the hydraulic supply system as possible. The flange cable bushing can be designed as a recess or bore in the flange, within which one or more cables for electrical supply and for controlling or regulating the drive motor run in the assembled state. Additionally or alternatively, the electrical coupling element can be Have flanged cable conduit, which is designed as a hose (for example a corrugated hose) or as a similarly suitable component. The electric

The coupling element can accordingly be understood as a device by means of which the drive motor is supplied with electrical energy starting from the control plate or can be controlled and regulated. Hence the electrical

Coupling element either as a guide device or accommodation device for one or more cables for electrical supply and for controlling or regulating the drive motor, or, together with these cables, as a holistic electrical coupling element. In principle, however, it is also conceivable that the electrical lines or electrical cables can also be routed outside the flange or are arranged there.

It is also possible that the flange has at least one flange housing in which the electrical coupling element and / or the connector are integrated. The integration facilitates a very space-saving construction of the flange, since the structural dimensions of the electrical coupling element and / or the connector are small in relation to the overall dimensions of the flange housing and can therefore be easily integrated within the flange housing. The integration also shortens the flow paths for the hydraulic oil from the hydraulic pump to the control plate or shortens the line paths for the electrical cables from the drive motor to the control plate. As a result of this shortening, the hydraulic supply system can work even more efficiently, so that the overall efficiency is further improved.

Furthermore, it can be provided that the hydraulic supply system

has at least one control and / or regulating device which, in the assembled state, is electrically connected to the drive motor by means of the control plate and / or the electrical coupling element. The control and / or regulating device indirectly ensures a needs-based promotion of the

Hydraulic oil from the hydraulic pump to the control plate, in which it can control or regulate the speed or the torque of the drive motor. Under one

Control and / or regulating device can in particular also be understood to be just a device for controlling the drive motor. Furthermore, under a control and / or regulating device, a device for pure regulation of the drive motor in response to the required hydraulic parameters of the

Hydraulic supply system are understood. The control and / or

Control device can also take on both control and regulation tasks of the drive motor. In principle, it is also conceivable that the motor is designed to be uncontrolled and / or unregulated. Embodiments with integrated control electronics are also conceivable.

It is also conceivable that the drive motor and the hydraulic pump are mechanically fastened in the fastened state by means of the flange on at least one side, in particular a broad side, of the control plate. The mechanical fastening on a broad side of the control plate allows a very space-saving lateral arrangement of the drive motor / hydraulic pump assembly on the control plate. This kind of

Arrangement enables above all that the above arrangement does not go beyond the dimensions of the broad side of the control plate, so that a

Space-optimized overall arrangement between control plate, drive motor, flange and hydraulic pump can be created. Such a space-optimized overall arrangement also enables more structural degrees of freedom, the control and / or regulating device likewise with regard to a space-saving one

To continue to optimize the design. After all, the drive motor was in previous solutions in the prior art in the field of control and / or

Control device arranged. In addition, by means of a single component, namely the flange, the drive motor and the

Hydraulic pump to be attached to the control plate, leaving on additional

Fastening elements for the drive motor and / or hydraulic pump can be dispensed with in this regard.

Furthermore, it is conceivable that the flange has at least one shaft tunnel in which one end of at least one motor shaft of the drive motor and one end of at least one pump shaft of the hydraulic pump are coupled in a rotationally fixed manner by means of at least one coupling. In addition to the inclusion or integration of the electrical

Coupling element and / or the connector and the mechanical coupling of the drive motor and hydraulic pump, the flange can also ensure a protected, non-rotatable coupling of the motor shaft and the pump shaft. As in the State of the art, the shaft tunnel within the control plate is dispensed with, which either saves additional installation space or the newly gained installation space can be provided for the integration of further electro-hydraulic components. In this respect, on the one hand, the manufacture and construction of the control plate can be simplified. In addition, the elimination of the wave tunnel in the

Control plate whose electrical and hydraulic interconnection effort can be reduced. On the other hand, the functional density of the flange can be increased again, which results in an even more compact overall structure.

It is also possible that at least one bearing device for mounting the motor shaft is arranged in the flange. The additional bearing device enables an increase in the effective bearing distance from a further bearing device of the drive motor that is necessarily present. As a result, transverse forces on the drive shaft and on the drive motor can be reduced overall as a result of the increased axial bearing spacing. Consequently, so can the

Storage facilities and the drive motor as a whole according to this

Requirements regarding size and weight can be adjusted or optimized. A further possibility is thus shown, as by another

Functional integration of the flange of the drive motor and thus the

Hydraulic supply system can be made more compact and powerful overall.

In addition, it can be provided that in the assembled state at least one first seal is arranged between the flange and the hydraulic pump and / or at least one second seal is arranged between the flange and the control plate. Since both the coupling area between the flange and the hydraulic pump as well as between the flange and the control plate rest in relation to one another in the assembled state, an effective and reliable seal can be easily implemented, particularly in this area. The sealing effect can be ensured very simply and reliably in the case of components resting against one another, in particular by means of elastic sealing elements (such as sealing rings) due to a high surface pressure. However, safe operation of the hydraulic supply system is only guaranteed if the hydraulic components or the connector from the electrical Coupling element or components are securely separated, whereby a reliable seal is particularly important. In this sense, a further seal also serves to reliably seal the shaft tunnel, particularly with regard to the connector for connecting the hydraulic pump and control plate. It is also conceivable that at least one third seal for the electrical coupling element is arranged between the flange and the control plate. This seal has essentially the same functions as the first and second seals as described above.

It is also conceivable that the hydraulic supply system has at least one

Has hydraulic tank in which the drive motor and the flange and the hydraulic pump are arranged in the assembled state. The integration of the assembly or the structural unit drive motor, flange and hydraulic pump within the tank allows a further possibility, the hydraulic supply system

overall very compact and space-saving to design. In addition, some of the supply lines for the hydraulic pump are omitted because they contain the hydraulic oil or the

Hydraulic fluid can suck in directly from the tank, which also has a favorable effect on the weight and the installation space of the hydraulic supply system. Moreover, this type of integration results in more effective cooling of the assembly described above. The tank can also have a very simple design, since the structural design of the flange means there are no hydraulic ones

Supply lines from the tank to the control plate have to be provided or the tank would have to be connected to the control plate in some other way except via the flange.

It is also conceivable that the flange has at least one further hydraulic line and / or at least one further hydraulic bore, by means of which the hydraulic tank and the control plate can be connected. As already explained above, the tank can also have a very simple structure due to the additional hydraulic line and / or hydraulic bore, since no hydraulic supply lines need to be provided from the tank to the control plate due to the structural design of the flange. A very simple structural design can thus be provided in order to achieve the The hydraulic oil or hydraulic fluid required by the hydraulic supply system is returned to the tank and thus to form a closed circuit.

It is also possible for the flange to have at least one heat sink. The heat sink can relieve the thermal load on the flange itself and also form a heat sink for the drive motor and the hydraulic pump. As a result, the drive motor and the hydraulic pump can be thermally relieved and cooled more effectively or more efficiently, which results in a longer service life or in a safer mode of operation of the hydraulic supply system. Furthermore, it can be provided that the tank is also connected to a hydraulic oil cooler. As a result, the hydraulic oil can initially be cooled before it enters the hydraulic pump, so that overheating of the hydraulic supply system can be avoided.

It can further be provided that the flange is arranged between the drive motor and the hydraulic pump in the assembled and operational state. Such a structural arrangement allows a very space-saving and simple

Established mechanical connection or coupling between drive motor and hydraulic pump. In addition, the two ends of the pump shafts and the

Drive shaft protected, sealed and non-rotatably connected to one another within the flange. In addition, with such a flange arrangement, the shaft ends can be arranged essentially in alignment with one another, which additionally simplifies the mechanical structure. The attachment of the drive motor or its

The housing and the hydraulic pump are also very simple, since they can only be attached in a very space-saving manner on opposite sides of the flange.

Further details and advantages of the invention will now be based on one in the

Drawings illustrated embodiment are explained in more detail.

Show it: Fig. 1 is a schematic, partially perspective illustration of an embodiment of an inventive

Hydraulic supply system;

Fig. 2 is a schematic overall plan view of the embodiment of

Hydraulic supply system according to FIG. 1; and

Fig. 3 is a schematic partial sectional view of the drive motor, the flange, the

Control plate and the hydraulic pump of the hydraulic supply system according to FIG. 1.

1 shows a schematic perspective illustration of a section of an exemplary embodiment of a hydraulic supply system 10 according to the invention for a rail vehicle (not shown in FIG. 1).

The hydraulic supply system 10 comprises a drive motor 12, a flange 14, a hydraulic pump 16 and a control plate 18 for receiving and controlling further electrical and hydraulic components 20 of the hydraulic supply system 10.

The flange 14 is in the assembled state on the drive motor 12 and on the

Hydraulic pump 16 attached to their mutual mechanical coupling.

The flange 14 is further attached to the control plate 18.

The control plate 18 is designed according to FIG. 1 as a cuboid plate with a first and second broad side 18a, 18b, which are arranged parallel opposite one another, and four narrow sides orthogonally adjacent thereto.

The above components or parts according to FIG. 1 are coupled or connected to one another as follows: The drive motor 12 and the hydraulic pump 16 are connected to one another in the fastened state by means of the flange 14 in such a way that their respective central axes are essentially aligned with one another.

Furthermore, the center lines of the drive motor 12 and the hydraulic pump 16 in the assembled and fastened state are essentially parallel to a longitudinal axis of the control plate.

All information within the scope of the present invention by the word im

Essentially, they should be characterized as mutually tolerated dimensions

which are sufficiently known to the person skilled in the art.

The drive motor 12 and the hydraulic pump 16 are mechanically fastened in the fastened state by means of the flange on a broad side 18a of the control plate 18.

The fastening is formed by means of four fastening screws which, in the assembled state, extend orthogonally to the center lines of the drive motor 12 and the hydraulic pump 16.

The four fastening screws form a symmetrical fastening profile with the flange 14 and the control plate 18.

More or fewer than four fastening screws can also be provided for fastening the flange 14 to the control plate 18.

The flange 18 is also arranged between the drive motor 12 and the hydraulic pump 16 in the assembled and operational state.

Fig. 2 shows a schematic plan view of the embodiment of

hydraulic supply system 10 according to the invention according to FIG. 1. The hydraulic supply system 10 is divided into two sub-areas 10a, 10b, the control plate 18 being designed as a hydraulic interface element between the sub-areas 10a, 10b.

As explained above in connection with FIG. 1, the control plate 18 has two opposite broad sides 18a, 18b, to which the two subregions 10a, 10b adjoin.

On the broad side 18a, on which the assembly comprising the drive motor 12, flange 14 and hydraulic pump 16 is attached, the first partial area 10a is formed adjacent.

The first sub-area 10a has a hydraulic tank 22 or is formed by this, in which the drive motor 12 and the flange 14 and the hydraulic pump 16 are arranged in the assembled state.

The hydraulic pump 16 also has a suction for hydraulic oil or hydraulic fluid on its suction side, the open end of which can end at different heights within the hydraulic tank 22.

The hydraulic supply system 10 also has a control and

Control device 24 on.

The control and regulating device 24 can also be understood to mean that it is only designed as a control device 24 for the hydraulic supply system 10.

In addition, the control and regulating device 24 can also be understood to mean that it is only used as a regulating device 24 for the

Hydraulic supply system 10 is formed.

The second partial area 10b, which adjoins or adjoins the second broad side 18b of the control plate 18, accordingly comprises the control and Control device 24 and is thus designed as a control and regulation area.

The second sub-area 10b further comprises further hydraulic or

electrohydraulic components 20 such as switching valves, control valves,

Control valves or pressure limiters which are hydraulically connected to the control plate 18.

In addition, these components 20 are partially received by the control plate 18.

The control plate 18 itself has several hydraulic lines or hydraulic bores, which run within the control plate.

The hydraulic lines or hydraulic bores form different hydraulic paths between the hydraulic pump 16 and the hydraulic or electrohydraulic components 20.

In Fig. 2 it can also be seen that the flange 14 is an integral part of the

Drive motor 12 is.

In addition, a mechanical receptacle for the

Hydraulic pump 16 formed on the drive motor.

3 shows a schematic partial sectional view of the drive motor 12, the flange 14 and the hydraulic pump 16 as well as the control plate 18 of the hydraulic supply system 10 according to the invention according to FIG. 1.

According to FIG. 3, the flange 14 has a connector 26 for the hydraulic coupling of the hydraulic pump 16 to the control plate 18.

In addition, the flange 14 has an electrical coupling element 28 for electrically coupling the drive motor 12 to the control plate 18. The flange 14 further comprises a flange housing 14a, in which the electrical coupling element 28 and the connector (also referred to as a hydraulic coupling element) 26 are integrated.

The connector 26 is designed as a fly hydraulic bore.

The hydraulic bore forms a substantially right-angled flow channel or flow path within the flange housing 14a and is formed by means of two partial hydraulic bores.

According to a further exemplary embodiment (not shown in FIG. 3) it is also conceivable that the connector 26 is designed as a hydraulic line.

The electrical coupling element 28 is designed as a flange cable bushing.

The flange cable bushing forms an essentially right-angled flange cable bushing within the flange housing 14a and is also formed by means of two partial bores.

Several cables extend inside the flange cable bushing

electrical supply and control or regulation of the drive motor 12.

These cables extend from the control and regulating device 24 to the control plate 18 and from the control plate 18 to the drive motor 12.

The electrical coupling element 28 can thus be understood as such in the form of the flange cable bushing alone or as a combination of the flange cable bushing with the cables described above.

According to a further exemplary embodiment (not shown in FIG. 3) it is also conceivable that the electrical coupling element 28 additionally has a flange cable conduit which extends within the flange cable bushing. The flange 14 or the flange housing 14a also has a shaft tunnel 30.

The shaft tunnel 30 is a cylindrical through recess in one

Central region of the flange housing 14a is formed

In the shaft tunnel 30, one end 32a of a motor shaft 32 of the drive motor 12 and one end 34a of a pump shaft 34 of the fly hydraulic pump 16 are coupled in a rotationally fixed manner by means of a coupling 36.

The coupling 36 is designed as a claw coupling with an integrated damping element 36a.

The above components or parts according to FIG. 3 are coupled or connected to one another as follows:

In the assembled state according to FIG. 3, the flange 14 forms a coupling area with the drive motor 12, the hydraulic pump 16 and with the control plate 18.

In the assembled state, the drive motor 12 and the flange 14 form a flange-side coupling region 38a on the motor side.

Furthermore, in the assembled state, the hydraulic pump 16 and the flange 14 form a coupling region 38b on the flange-pump side.

In addition, in the assembled state, the control plate 18 on its broad side 18a and the flange 14 form a coupling area 40 on the flange-control plate side.

In addition, the flange 14 or the flange housing 14a has a hydraulic connection 14b on the pump side and a hydraulic connection 14c on the control plate. The hydraulic pump 16 further comprises a first flange-side hydraulic connection 16a and the control plate 18 accordingly comprises a second flange-side hydraulic connection 18c.

The flange housing 14a further comprises a bushing interface 14d on the motor side and a bushing interface 14e on the control plate side, each of which delimits the cable bushing 28 within the flange 14.

The bushing interface 14d on the engine side and a bushing interface 14e on the control plate each form connection points or

Feed-through points for electrical cables for control or regulation and electrical supply of the drive motor 12.

The control plate 18 also contains a control plate cable bushing 18d, which is delimited on the flange side by a flange-side bushing interface 18e.

The pump-side hydraulic connection 14b of the flange 14 and the first

The flange-side hydraulic connection 16a of the hydraulic pump 16 are connected or coupled directly to one another at the flange-side pump-side coupling region 38b.

The second flange-side hydraulic connection 18c of the control plate 18 and the control-plate-side hydraulic connection 14b of the flange 14 are in turn connected or coupled directly to one another at the flange-control plate-side coupling region 40.

Consequently, the first and the second flange-side hydraulic connection 16a, 18c of the hydraulic pump 16 and the control plate 18 are connected to one another via the connector 26.

Furthermore, the control plate-side leadthrough interface 14e of the flange 14 and the flange-side leadthrough interface 18e of the control plate 18 are also directly connected to one another at the flange-control plate-side coupling area 40. In addition, in the assembled state, a first seal 42 is arranged between the flange 14 and the hydraulic pump 16.

Accordingly, on the coupling area 38b on the flange-pump side there is one

Transition of the first flange-side hydraulic connection 16a of the hydraulic pump 16 and the pump-side hydraulic connection 14b of the flange 14, the first seal 42 is arranged.

Next is on the flange-control plate-side coupling area 40 on one

Transition of the control plate-side hydraulic connection 14c of the flange 14 and the second flange-side hydraulic connection 18c of the control plate 18 is a second

Seal 44 arranged.

In addition, a third seal 46 is additionally arranged on the flange-control plate-side coupling region 40 at a transition between the control-plate-side bushing interface 14e of the flange 14 and the flange-side bushing interface 18e of the control plate 18.

A further fourth seal 48 is also arranged between the flange 14 and the drive motor 12.

The fourth seal 48 is arranged on the flange-motor-side coupling region 38a.

Next is on the flange-pump-side coupling area 38b on one

At the end of the shaft tunnel 30 on the pump side and the hydraulic pump 16, a fifth seal 48a is arranged for sealing the shaft tunnel 30.

In addition, according to FIG. 3, a bearing device 50 for bearing the motor shaft 32 is arranged in the flange 14. The bearing device 50 is designed as a roller bearing, for example in the form of a ball bearing or cylindrical roller bearing, and is received on its outer ring in a housing shoulder of the flange housing 14a and secured by a locking ring.

The housing shoulder connects axially to an end of the shaft tunnel 30 on the motor side and thus forms a stepped section of the shaft tunnel 30.

The bearing device 50 is also received radially on its inner ring by means of a jacket surface of the motor shaft 32 and axially secured on a shaft shoulder.

If the drive motor 12 is designed as a brushless electric motor, in the space between the housing shoulder of the shaft tunnel 30 and the

Main body of the drive motor 12 an additional control or

Control electronics be arranged.

The flange 14 can additionally have a further hydraulic bore (not shown in FIG. 3) by means of which the hydraulic tank 22 and the control plate 18 can be connected.

According to a further exemplary embodiment, the flange 14 can additionally or alternatively have a further hydraulic line, by means of which the hydraulic tank 22 and the control plate 18 can be connected.

The flange 14 further comprises a heat sink (not shown in FIG. 3).

For this purpose, the flange 14 or its flange housing 14a can have several cooling fins or cooling fins.

The function of the hydraulic supply system 10 and according to the invention

in particular of the flange 14 can now be described as follows:

In general, the function of the hydraulic supply system 10 is that the hydraulic consumers of the rail vehicle (e.g. level control cylinders, power generators, other hydraulic functional elements) have a controlled or regulated, ie needs-based, hydraulic pressure or mass flow for

Is provided.

For this purpose, the flange 14 has the function, the fly hydraulic pump 16 mechanically

take up or provide a fastening device for them on the drive motor 12.

Here, the flange 14 in the assembled state is designed as an integral or one-piece component of the electric motor 12.

On the other hand, the flange 14 is used to forward the control and

Control commands originating from the control and regulating device 24, which are transmitted to the drive motor 12 using the supply and control cables.

These cables run within the flange 14 in the electrical coupling element 28 provided for this purpose in the form of the cable bushing to the

Drive motor 12 or its electronics (in the case of a brushless

Electric motor).

Alternatively, it is also conceivable that the drive motor 12 is designed to be uncontrolled and / or uncontrolled, so that the integrated control or regulation electronics can be omitted.

Furthermore, a hydraulic connection between a pressure side of the hydraulic pump 16 and a pressure input of the control plate 18 can be provided through the flange 14 in order to supply the control plate 18 with hydraulic operating pressure as required.

The flange 14 also has the function of a mechanical recording for the

Provide bearing device 50 of the drive motor 12. In addition, the flange 14 forms a central fastening point for the assembly consisting of the drive motor 12, flange 14 and fly hydraulic pump 16 on the

Control plate 18 off. As shown in FIG. 3, both the drive motor 12 and the hydraulic pump are screwed to the flange 14 by means of screws.

The flange 14 is in turn screwed to the control plate 18 by means of screws. The two ends 32a, 34a of the pump and motor shaft 32, 34 are also arranged within the flange 14 and can so in particular before the

Penetration of hydraulic oil from the hydraulic tank 22 can be protected by means of the seals 42, 44, 46, 48, 48a. In the case of a brushless drive motor 12, the flange 14 also takes over the heat dissipation for the control or regulation electronics required for this by means of the heat sink.

Alternatively, it can be provided that the flange 14 by means of the further

Hydraulic bore (not shown in the figures) a simple return of the

Hydraulic oil or the hydraulic fluid from the control plate 18 into the hydraulic tank 22 guaranteed.

REFERENCE LIST

10 hydraulic supply system

10a first part of the hydraulic supply system

10b second part of the hydraulic supply system

12 drive motor

14 flange

14a flange housing

14b hydraulic connection on the pump side

14c hydraulic connection on the control plate

14d bushing interface on the motor side

14e feed-through interface on the control panel

16 hydraulic pump

16a first flange-side hydraulic connection of the hydraulic pump

18 control plate

18a first broad side of the control plate

18b second broad side of the control plate

18c second flange-side hydraulic connection of the control plate

18d control panel cable entry

18e bushing interface on the flange side

20 other hydraulic or electro-hydraulic components

22 hydraulic tank

24 Control and regulation device

26 connector

28 electrical coupling element

30 shaft tunnels

32 motor shaft

32a end of the motor shaft

34 pump shaft

34a end of the pump shaft

36 clutch

36a damping element of the coupling

38a flange-motor-side coupling area 38b coupling area on the flange-pump side 40 coupling area on the flange-control plate side

42 first seal

44 second seal

46 third seal

48 fourth seal

48a fifth seal

50 Storage facility

Claims

PATENT CLAIMS

1. Hydraulic supply system (10) for at least one vehicle, in particular a rail vehicle, with at least one drive motor (12), with at least one flange (14), with at least one hydraulic pump (16) and with at least one control plate (18) for receiving and / or control of further electrical and / or hydraulic components (20) of the hydraulic supply system (10), the flange (14) being attached to the drive motor (12) and to the hydraulic pump (16) for their mutual mechanical coupling in the assembled state, and the Flange (14) is attached to the control plate (18), the flange (14) further having at least one connector (26) for coupling the hydraulic pump (16) to the control plate (18) and wherein the flange (14) has at least one having an electrical coupling element (28) for electrically coupling the drive motor (12) to the control plate (18).

2. hydraulic supply system (10) according to claim 1,

characterized in that

the flange (14) is an integral part of the drive motor (12), at least one mechanical receptacle for the hydraulic pump (16) being formed by means of the flange (14).

3. Hydraulic supply system (10) according to claim 1 or claim 2,

characterized in that

the connector (26) is designed as at least one hydraulic line and / or as at least one hydraulic bore.

4. Hydraulic supply system (10) according to one of claims 1 to 3,

characterized in that

the electrical coupling element (28) is designed as at least one flange cable bushing and / or as at least one flange cable conduit.

5. Hydraulic supply system (10) according to one of the preceding claims, characterized in that

the flange (14) has at least one flange housing (14a) in which the electrical coupling element (28) and / or the connector (26) are integrated.

6. Hydraulic supply system (10) according to one of the preceding claims, characterized in that

the hydraulic supply system (10) at least one control and / or

Control device (24) which in the assembled state electrically by means of the control plate (18) and / or the electrical coupling element (28) with the

Drive motor (12) is connected.

7. Hydraulic supply system (10) according to one of the preceding claims, characterized in that

the drive motor (12) and the hydraulic pump (16) are mechanically fastened in the fastened state by means of the flange (14) on at least one side (18a), in particular one broad side (18a), of the control plate (18).

8. Hydraulic supply system (10) according to one of the preceding claims, characterized in that

the flange (14) has at least one shaft tunnel (30) in which one end (32a) of at least one motor shaft (32) of the drive motor (12) and one end (34a) of at least one pump shaft (34) of the hydraulic pump (16) by means of at least a coupling (36) are rotatably coupled.

9. hydraulic supply system (10) according to claim 8,

characterized in that

in the flange (14) at least one storage device (50) for storing the

Motor shaft (32) is arranged.

10. Hydraulic supply system (10) according to one of the preceding claims, characterized in that

in the assembled state between the flange (14) and the hydraulic pump (16) at least one first seal (42) and / or between the flange (14) and the control plate (18) at least one second seal (44) is arranged.

11. Hydraulic supply system (10) according to one of the preceding claims, characterized in that

Hydraulic supply system (10) has at least one hydraulic tank (22) in which, in the assembled state, the drive motor (12) and the flange (14) as well as the

Hydraulic pump (16) are arranged.

12. Hydraulic supply system (10) according to one of the preceding claims, characterized in that

the flange (14) has at least one further hydraulic line and / or at least one further hydraulic bore, by means of which the hydraulic tank (22) and the control plate (18) can be connected.

13. Hydraulic supply system (10) according to one of the preceding claims, characterized in that

the flange (14) has at least one heat sink.

14. Hydraulic supply system (10) according to one of the preceding claims, characterized in that

the flange (14) in the assembled and ready-to-use state between the

Drive motor (12) and the hydraulic pump (16) is arranged.