EP3801914A1

EP3801914A1 - Operating liquid container, closing element and cleaning device

Info

Publication number: EP3801914A1
Application number: EP19729223.8A
Authority: EP
Inventors: Jörg Klüser; Markus Beer
Original assignee: IBS Filtran GmbH
Current assignee: IBS Filtran GmbH
Priority date: 2018-06-04
Filing date: 2019-06-03
Publication date: 2021-04-14
Also published as: DE102018113226A1; WO2019233957A1

Abstract

The invention relates to an operating liquid container, comprising a housing (4, 66) which delimits a storage volume (6, 68) for receiving an operating liquid (8, 70), and at least one open-pored cleaning element (10, 16, 30, 36, 42, 48, 58, 72, 78) through which the operating liquid (8, 70) can flow, said open-pored cleaning element (10, 16, 30, 36, 42, 48, 58, 72, 78) being received within the storage volume (6, 68) of the housing (4, 66).

Description

Operating fluid container, closure element and Abreini supply device

The present invention relates to an operating fluid container, a closure element for a Betriebstlüssig- keitsbehälter and a cleaning device for a working fluid container.

Operating fluid tanks of technical facilities serve to store and encapsulate fluids or operating fluids. Frequently, operating fluids are cleaned using active filter systems. For this purpose, a respective operating fluid is circulated by means of a pump and

flows through at least one filter to remove foreign matter or impurities from the fluid.

Insofar as there is no active filter device with a pump, contamination with foreign particles in the fluid can result in wear of moving parts, plugging of flow openings, or other obstructions to functional units that are supplied with the fluid.

Further, an active filter device may be overloaded, so that it comes despite the active filtering to malfunction ei ner to be supplied with operating fluid, technical A direction. Against this background, the present invention is based on the technical problem of providing an operating liquid container, a closure element for a service liquid container and a cleaning device for a service liquid container which do not have the disadvantages described above or at least have a slight extent and in particular an improved one

Allow cleaning of a working fluid storage container. For this purpose, an operating fluid container according to claim 1, a closure element according to claim 14 and a cleaning device according to claim 16 are given. Wei tere embodiments of the invention will become apparent from the depen dent claims and the following description.

According to a first aspect, the invention relates to a loading operating fluid container, with a housing which limits a storage volume before receiving a working fluid, with at least one open-pore cleaning element, which can be flowed through by the operating fluid, wherein the offenpo rige Abreinigungselement housed within the storage volume of the Ge housing is.

Using the open-pore cleaning element can

Foreign particles or impurities are separated from the operating fluid and retained on the open-pored cleaning element.

The open-pore cleaning element can, for example, a sintered material, a felt, a non-woven, or a tissue aufwei sen, or consist of a sintered material, a felt, a non-woven or a fabric.

According to a further embodiment of the container Betriebsflüssigkeitsbe is provided that the housing is assigned no active, having a pump filter device or the Housing has no active, having a pump filter device, which is set up for circulation and filtration of Betriebsflüs fluid. Accordingly, the open-pore Abrei nigungselement can serve in particular to housings

to be arranged, whose operating fluid is not cleaned by means of an active filter device by circulation through a filter medium.

According to alternative embodiments, it may be provided, the housing is associated with an active, at least one pump having a filter device or the housing has an active, at least one pump having filtering device which is switched to the circulation and filtration of the operating fluid is switched Tet Accordingly, the porous, within of the housing arranged Abreinigungselement supplementary to the filtration a cleaning effect of an active filter device supports zen.

A further embodiment of the operating fluid container is characterized by at least one magnet, wherein the open-pored Abreinigungselement the magnet on one side at least partially or completely covered. In particular, ferromagnetic particles can be applied by means of the magnet and held on the cleaning element or the magnet. Thus, for example, be provided that the Mag net is located directly on one of the operating fluid facing the inside of the housing, while the offenpo rige Abreinigungselement the magnet on one side at least from sections or completely covered. In particular ferromagnetic particles can thus be drawn deep into the open-pore cleaning element by the magnet in order to prevent it rinsing out of the cleaning element.

The magnet may be a plastic-bonded magnet. Alternatively, it can be provided that the open-pore Abreini transmission element, the magnet on two sides at least partially or completely covered. Insofar as the magnet is at least partially completely covered by the open-pored cleaning element, for example, a first part of the cleaning element can be arranged directly on one of the inside of the housing facing the loading fluid, the magnet on the cleaning element and on this inside or Inner wall spaced rests. In this case, the magnet is not only flowed over by operating fluid, but can be completely washed around, so that in comparison to the above variant increased Abreini can be achieved tion effect. On a side facing away from the inside, the magnet can also be covered by a second part of the cleaning element.

Alternatively, the open-pore cleaning element can completely envelop the magnet. Again, a flushing of the magnet when flushing the offenpo-term cleaning element can be effected in a reliable manner.

It can be provided that the open-pored Abreinigungsele element is at least partially or completely shaped in the manner of a hose. Accordingly, the open-pore Abreini can supply element, for example, have a through hole, which extends from a first open end to a second open end. At least one open end of the open-pored cleaning element may be oriented within the operating fluid container such that from within the

Housing recorded, moving parts whirled Be operating fluid in the direction of the open end of the offenpori gene cleaning element is moved. In such a rotating or movable element may be, for example, a rotating shaft or a rotating gear.

Alternatively or additionally, the open-pored Abreinigungs element at least partially or completely shaped in the manner of a funnel. In this way, a large Publ tion cross-section can be effected to be targeted specifically in the direction of expected liquid movement.

Alternatively or additionally, it can be provided that the window-like cleaning element is shaped at least in sections in the manner of a pocket. Accordingly, the open-pore cleaning element has an open end and a closed end, wherein the opening can in turn be directed to an expected flow of operating fluid. Overall, the three above-mentioned alternatives in common that an opening of Abreinigungselements can be aligned such that during operation of the liquid container the largest possible Vo lumen flow of the recorded within the operating fluid reservoir operating fluid flows through the open-cell Abreini transmission element.

According to a further embodiment of the liquid container is provided that the magnet is a spacer which fenfen an opening of the tube, the funnel or the pocket, wherein one, two or more spacer elements are provided. Accordingly, the magnet can be achieved in combination with a kind of a hose, a funnel or a pocket th cleaning element an improved cleaning effect, in addition to the open-pore structure and the shape of the Abreinigungselements leads to an improved From divorce of contaminants or debris. The cleaning element can be prepared as a mat or strip bereitge and formed into a bag, a hose or a funnel. Partial areas of the Abreinigungsele element can be connected by welding, gluing or staples.

The cleaning element can be formed in two parts. Age native or supplementary, the cleaning element may have at least two open-porous Abreinigungsmaterialien. Alternatively or additionally, the cleaning element may comprise an inhomogeneous cleaning material which, in particular in a first area, has a lower density than in a second area. The cleaning element can therefore, depending on

Application, have a gradually increasing pore fineness, for example, in a housing wall facing away from the interior and facing the area initially coarse contaminants or impurities record, and in a denser, the wall associated with or facing area finer dirt deposits or particles take a coarse dirt or foreign particles.

In order to enable maintenance of the cleaning element, container is provided according to a further embodiment of the Betriebsflüssigkeitsbe that the cleaning element is adjacent to or adjacent to an inspection opening of the housing angeord net, wherein the cleaning element is removable through the Revisionsöff statement or interchangeable.

It can be provided that the cleaning element is part of a closing element that closes an opening of the housing, such as a discharge opening, an inspection opening or the like. Thus, the cleaning element can be exchanged quickly and with little effort or removed for cleaning. The cleaning element can therefore be part of a service cover which closes an inspection opening of the housing. The cleaning element can be held interchangeably on the service cover ge, eg by clamping, screws or the like. The cleaning element may be materially connected to the service dice, eg by gluing or welding.

It can be provided that the closure element has one of the Abreinigungselement at least partially or fully constantly wrapped, cylindrical or sleeve-shaped Stabmag Neten. For the combination of open-pored

Abreinigungselement and the magnet, the advantages described above arise that ferromagnetic particles or impurities are attracted to the bar magnet and can be bound in or on the open-pore Abreinigungselement.

According to alternative embodiments, it may be provided that the bar magnet has a triangular, quadrangular, rectangular, quadratic or polygonal cross-sectional shape.

Alternatively or additionally, it can be provided that the closure element is screwed to a drain opening associated drain or a cover associated with a revision opening, wherein the closure element in particular has a thread for releasably securing the closure element to the housing. As far as the operating fluid container example, is a transmission, it may be at the Verschlus selement example, an oil drain plug.

The closure element may have a base body which has a plastic or consists of a plastic. A Ge thread of the closure element can vorgese hen on the base body. The cleaning element can be detachably and exchangeably held on the base body. The magnet of the closure element may be a plastic bound ner bar magnet.

The cleaning element can on the magnet or on the

Base be attached via one or more brackets.

It can be provided that the housing has at least one Lei element to guide fluidized fluid in the direction of Abreinigungselement s. For example, a guide plate or a plurality of guide plates may be provided on a housing wall, which serve to conduct a volume flow of operating fluid in the direction of the cleaning element in order to increase the efficiency of the cleaning element.

Alternatively or additionally, a guide element can be fastened directly to the cleaning element.

It can be provided that the cleaning element is held on the front side on a cantilevered into the housing web, in particular, that the web has a magnet or is a magnet. In this way, both a washing around of the magnet and a flushing of the cleaning element s can be ensured in order to achieve the most efficient cleaning possible.

In this case, it can be provided that an arrangement of two or more webs arranged adjacent to one another is provided, on each of which a cleaning element is held on the front side.

In the present case, when speaking of an operating fluid container, it may be, for example, a loading container containing a working fluid of a Motor vehicle stockpiled or encapsulated. Accordingly, the operating fluid container may be, for example, a tank for a motor vehicle, an SCR container of a motor vehicle, a transmission or a differential, that is to say those containers or volumes which require a fluid which is necessary for operating a motor vehicle is, record and demarcate against the environment.

The housing can therefore be a transmission housing of a Zahnradge gear, wherein within the housing at least one gear stage is added, wherein the gear stage is an au ßenverzahnte spur and wherein the open-pore cleaning element is arranged such that a spanned by the spur gear level of the open-pored cleaning element crosses. In this way, a radially accelerated by the spur gear operating fluid, here gear oil, are slung in the direction of Abreinigungselement s, so that the cleaning element in the high Volu menströme and fluid velocities is arranged, which favors the Abreinigungswirkung.

According to a second aspect, the invention relates to a United closure element for a working fluid container, with egg nem thread for releasably securing the closure element to a working fluid container, with a Abreinigungsele element which auskr in the fully assembled state of the closure element in an interior of the operating fluid container auskra is extended. In this way, a simple from exchangeable or to be maintained cleaning element can be specified.

The cleaning element may be an open-porosity element that can be flowed through by the operating liquid. The open-pore cleaning element can, for example, a sintered material, a felt, a non-woven, or a tissue aufwei sen, or consist of a sintered material, a felt, a non-woven or a fabric.

The closure element may be a screw, such as a

Oil drain plug or the like.

The closure element may be a cover of a revision opening.

The closure element may have one of the cleaning element at least partially or completely enveloped, cylindric or sleeve-shaped bar magnet. As already discussed, thereby the cleaning effect increases who the.

According to a third aspect, the invention relates to a Abrei nigungsseinrichtung for a working fluid container, with at least one porous cleaning element, which is traversed by egg ner operating fluid, with at least egg nem magnet, wherein the open-porous Abreinigungselement the magnet on one side at least partially or completely covered or wherein the open-pore Abreinigungselement the magnet on two sides at least partially or completely covered or wherein the open-pored Abreinigungselement completely enveloping the magnet.

The open-pored Abreinigungselement can in the manner of a

Hose, a funnel or a bag.

The magnet may be a spacer which holds open an opening of the tube, funnel or pocket, with one, two or more spacer elements being provided. The cleaning element can be formed in two parts. Age native or supplementary, the cleaning element may have at least two open-porous Abreinigungsmaterialien. Alternatively or additionally, the cleaning element may have at least two open-pore cleaning materials. Alternatively, the cleaning element may comprise an inhomogeneous cleaning material which, in particular in a first region, has a lower density than in a second region. From cleaning device may at least one guide element

have to guide fluidized operating fluid in the direction of the cleaning element.

The cleaning element may be held on the front side on a cantilevered web, wherein the web may in particular have a magnet or is a magnet.

According to a further embodiment of the cleaning device, an arrangement of two or more adjacently arranged webs may be provided, on each of which a cleaning element is held on the front side.

The invention will be described with reference to an Ausführungsbei games illustrative drawing. Each show schematically:

FIG. 1A shows an operating fluid container according to the invention in a side view; FIG.

Fig. 1B the operating fluid container of Fig. 1B in a

Top view ;

2 shows another operating fluid container according to the invention; 3 shows a closure element according to the invention;

4 shows a cleaning device according to the invention;

Fig. 5 shows another Abreinigungseinrich invention

processing;

Fig. 6 shows a further Abreinigungseinrich invention

processing;

7 shows a further cleaning device according to the invention

8 shows another operating liquid container according to the invention in a side view.

Fig. 1A shows an operating fluid container 2, with a housing 4, which limits a storage volume 6 for receiving a Be operating fluid 8. The operating fluid container 2 has an open-pored Abreinigungselement 10, the operating fluid from the Be 8 can be flowed through, wherein the open-pored Abreinigungselement 10 is housed within the storage volume 6 of the Ge housing 4.

The housing 4 is presently assigned no active, a pump aufwei send filter device. Furthermore, the housing 4 has no active, having a pump filter device, which is set up for circulation and filtration of the operating fluid.

The open-pore cleaning element 10 in the present case consists of an open-pore material and is formed in one piece.

In the present case, the open-pored cleaning element 10 is shaped in the manner of a mat which rests flush against the housing 4. The open-pore cleaning element 10 is arranged such that that fluidized fluid 12 is thrown in the direction of cleaning element 10 from.

The housing 4 is present a gear housing 4 of a gear wheel gearbox, so that the operating fluid container 2 is lying before a gear transmission 2. Within the housing 4, a gear stage 14 is received which is an externally toothed spur gear 14, wherein the open-cell Abreinigungsele element 10 is arranged such that a spanned by the spur gear 14 gear level El the open-pored Abreinigungs element crosses (see Fig .. 1B).

Fig. 2 shows the operating fluid container 2 of FIG. 1, in which, however, one of Fig. 1 different, open-pored Abreini transmission element 16 is inserted.

The cleaning element 16 is shaped in the manner of a pocket, and in the present case has two magnets 18, 20 as spacer elements, in order to keep an opening 22 of the cleaning element 16 open. At the cleaning element 16, a guide element 24 is attached, which may also be attached to the housing 4 according to alternative embodiments. The guide element 24 is adapted to fluidized operating fluid 12, which is in the present case is transmission oil 12, in the direction of the cleaning element from 16 to lead. The cleaning element 16 can be removed and exchanged via an inspection opening 25 of the housing 4.

3 shows a closure element 26 according to the invention for an operating fluid container. In the present case, the United closure element is an oil drain plug 26th

The closure element 26 has a thread 28 for releasably attaching the closure element 26 to an operating fluid container. The closure element 26 has a Cleaning element 30 which extends in the assembled state of the closure element 26 in an interior or a Vorratsvolu men of a working fluid container cantilevered.

The Abreinigungsmaterial of Abreinigungselements 30 is open-pored before lying and can be traversed by a fluid ausgebil det. The closure element 26 has a present case

sleeve-shaped bar magnet 32 which is circumferentially enveloped by the open-pore Abreinigungselement 30.

4 shows a cleaning device 34 for an operating fluid container, with an open-pore Abreini transmission element 36, of a working fluid

can be flowed through, and with a magnet 38. In the present case covers the open-porous cleaning element 36, the magnet 38 on one side completely.

Fig. 5 shows a further Abreinigungsein device 40 according to the invention, which differs from the above-described descriptions NEN embodiment that an open-porous Abreinigungselement 42 a magnet 44 completely enveloped.

Fig. 6 shows a further embodiment of an inventive Shen cleaning device 46, which differs from the above-described embodiment in that a cleaning element 48 is formed in two parts, and a first Abreinigungslage 50 and a second Abreinigungs position 52. The first cleaning layer 50 has a ge ringere density than the second Abreinigungslage 52nd

Fig. 7 shows a further embodiment of an inventive Shen cleaning device 54, which is shown attached to the illustration of the mounting position in the assembled state on a wall 56 of a working fluid container is. The cleaning device 54 has open-pore Abreini transmission elements 58, which are respectively the end face on a cantilevered the web 60, wherein the webs 60 in turn are held on a support structure 62. The webs 60 are presently designed as magnets 60. The support structure 62 is adapted to the curved shape of the wall 56.

FIG. 8 shows a further embodiment of an operating liquid container 64, having a housing 66 defining a supply volume 68 for receiving an operating fluid 70, with an open-pored cleaning element 72 through which the fluid 70 can flow, with the open-pored cleaning element 72 is received within the storage volume 68 of the housing 66.

The cleaning element 72 is part of a service cover 74, which closes an inspection opening 76 of the housing 66. The cleaning element 72 is held exchangeably on the service cover 74.

Another cleaning element 78 is provided on a service cover 80, which also closes an opening 82 of the housing 66.

reference numeral

2 operating fluid containers

4 housing

6 storage volume

8 operating fluid

10 cleaning element

12 operating fluid

14 gear stage

El gear level

16 cleaning element

18 magnet

20 magnet

22 opening

24 guide element

25 inspection opening

26 Oil drain plug

28 threads

30 cleaning element

32 bar magnet

34 cleaning device

36 cleaning element

38 magnet

40 cleaning device

42 cleaning element

44 magnet

46 cleaning device

48 cleaning element

50 cleaning position

52 cleaning position

54 cleaning device

56 wall

58 cleaning element

60 footbridge

62 supporting structure The working fluid container

casing

storage volume

operating fluid

Abreinigungselement

service cover

inspection opening

Abreinigungselement

service cover

opening

Claims

claims

1. operating fluid container,

with a housing (4, 66) which delimits a supply volume (6, 68) for receiving an operating fluid (8, 70), with at least one open-pored cleaning element (10, 16, 30, 36, 42, 48, 58, 72, 78), which is flowed through by the Betriebsflüs fluid (8, 70),

wherein the open-pored Abreinigungselement (10, 16, 30, 34, 36, 42, 48, 58, 72, 78) within the storage volume (6, 68) of the housing (4, 66) is accommodated.

2. Operating fluid container according to claim 1,

characterized in that

the housing (4, 66) is associated with no active, having a pump filter device or the housing (4, 66) has no active, having a pumping filter device, which is adapted to the circulation and filtration of the operating fluid

or

the housing (4, 66) is associated with an active, at least one pump having a filter device or the Ge housing (4, 66) has an active, at least one pump aufwei send filter device to the circulation and

Filtration of the operating fluid is set up.

3. Operating fluid container according to one of the preceding claims 1 or 2,

marked by

at least one magnet (18, 20, 32, 38, 44, 60),

wherein the open-pored cleaning element (16, 30,

36, 42, 48, 58) the magnets (18, 20, 32, 38, 44, 60) on one side at least partially or completely covered or wherein the open-pored cleaning element (16, 30,

42, 48, 58) the magnet (18, 20, 32, 44, 60) on both sides at least partially or completely covered

or

wherein the open-pored cleaning element (16, 30,

42, 48) completely envelopes the magnet (18, 20, 44).

4. Operating fluid container according to one of the preceding claims 1 to 3,

characterized in that

the open-pored cleaning element (16, 30, 42, 48, 58) is shaped at least in sections in the manner of a hose (16, 30)

and or

at least partially shaped in the manner of a funnel

and or

at least partially in the manner of a bag (42, 48, 58) is formed.

5. Operating fluid container according to claim 3 and

Claim 4,

characterized in that

the magnet (18, 20, 32, 44) is a spacer which holds open an opening of the tube (16, 30), funnel or pocket (42, 48, 58),

wherein one, two or more spacer elements are provided.

6. Operating fluid container according to one of claims 1 to 5,

characterized in that

the cleaning element (48) is formed in two parts and / or the cleaning element (10, 16, 30, 34, 36, 42, 48, 58, 72, 78) has at least two open-porous Abreinigungsmateria materials

and or

the cleaning element (10, 16, 30, 34, 36, 42, 48, 58,

72, 78) has an inhomogeneous cleaning material which has a lower density, in particular in a first area, than in a second area.

7. Operating fluid container according to one of claims 1 to 6,

characterized in that

the cleaning element (10, 16, 30, 34, 36, 42, 48, 58,

72, 78) adjacent to or adjacent to a revision opening (25, 76, 82) of the housing (4, 66) is arranged and

the cleaning element (10, 16, 30, 34, 36, 42, 48, 58,

72, 78) through the access opening (25, 76, 82) is removable or replaceable.

8. Operating fluid container according to one of claims 1 to 7,

characterized in that

the cleaning element (30, 72, 78) is part of a closure element (26, 74, 80) having an opening (25, 76, 82) of the housing (4, 66), such as a drain opening, a check opening or the like, closes.

9. Operating fluid container according to claim 8,

characterized in that

the closure element (26) has one of the Abreinigungsele element (30) at least partially or completely wrapped around cylindrical or sleeve-shaped bar magnet (32)

and or the closure element (26) is a drain plug (26) associated with a drain opening or a cover (74, 80) associated with a revision opening (25, 76, 82), the closure element (74, 80) being in particular threaded (28) releasably securing the closure member (26, 74, 80) to the housing (4, 66).

10. Operating fluid container according to one of claims 1 to 9,

characterized in that

the housing (4) has at least one guide element (24) in order to guide fluidized fluid (12) in the direction of the cleaning element (10, 16, 30, 34, 36, 42, 48, 58, 72, 78).

11. Operating fluid container according to one of claims 1 to 10,

characterized in that

the cleaning element (58) is held on the end face on a web (60) projecting into the housing, in particular that the web (60) has a magnet or is a magnet (60).

12. Operating fluid container according to claim 11,

characterized in that

an arrangement of two or more adjacently arranged webs (60) is provided, on each of which a cleaning element (58) is held on the front side.

13. Operating fluid container according to one of claims 1 to 12,

characterized in that

the housing (4) is a gearbox (4) of a Zahnradge gear, wherein within the housing (4) at least one gear stage (14) is received,

wherein the gear stage (14) is an externally toothed spur gear stage and

wherein the open-pored Abreinigungselement (10, 16) is arranged such that one of the spur gear (14) on the tensioned gear level (El) crosses the open-porous Abreinigungs element (10, 16).

14. Closure element for a working fluid container, with a thread (28) for releasably securing the closure element (26) to an operating fluid container,

with a cleaning element (30) which extends in the finished montier th state of the closure element (26) projecting into an interior of a working fluid container.

15. Closure element according to claim 14,

characterized in that

the closure element (26, 74, 80) is a screw (26), such as an oil drain plug or the like,

or

the closure element (26, 74, 80) is a cover (74, 80) egg ner inspection opening (76, 80)

and or

the closure element (26, 74, 80) one of the Abreini transmission element (30) at least partially or fully completeness dig enveloped cylindrical or sleeve-shaped

Bar magnet (32) has.

16. cleaning device for a Betriebsflüssigkeitsbe container, with at least one open-pored cleaning element (10, 16, 30, 34, 36, 42, 48, 58, 72, 78), which can be flowed through by a loading operating fluid,

with at least one magnet (18, 20, 32, 38, 44, 60), wherein the open-pore cleaning element (10, 16,

30, 36, 42, 48, 58, 72, 78) the magnets (18, 20, 32, 38,

44, 60) on one side at least partially or completely covered dig

or

wherein the open-pored cleaning element (10, 16,

30, 36, 42, 48, 58, 72, 78) the magnets (18, 20, 32, 38,

44, 60) on both sides at least partially or completely covered

or

wherein the open-pored cleaning element (10, 16,

30, 36, 42, 48, 58, 72, 78) the magnets (18, 20, 32, 38,

44, 60) completely enveloped.

17. Cleaning device according to claim 16,

characterized in that

the open-pored cleaning element (10, 16, 30, 36, 42, 48, 58, 72, 78)

shaped like a tube

or

shaped like a funnel

or

shaped like a bag.

18. Cleaning device according to claim 17,

characterized in that

the magnet (18, 20, 32, 38, 44, 60) is a spacer which holds open an opening of the hose, funnel or pocket,

wherein one, two or more spacer elements are provided.

19. Cleaning device according to one of claims 16 to 18,

characterized in that

the cleaning element (10, 16, 30, 36, 42, 48, 58, 72,

78) is formed in two parts

and or

the cleaning element (10, 16, 30, 36, 42, 48, 58, 72,

78) has at least two open-pored Abreinigungsmaterialien

and or

the cleaning element (10, 16, 30, 36, 42, 48, 58, 72,

78) has an inhomogeneous cleaning material which has a lower density, in particular in a first region, than in a second region.

20. Cleaning device according to one of claims 16 to

19

marked by

at least one guide element (24) to fluidized Be operating fluid (12) in the direction of Abreinigungsele element (10, 16, 30, 36, 42, 48, 58, 72, 78) to be directed.

21. Cleaning device according to one of claims 16 to

20

characterized in that

the cleaning element (10, 16, 30, 36, 42, 48, 58, 72, 78) is held on the end face on a projecting web (60), in particular that the web (60) has a magnet (60) or a magnet ( 60).

22. Cleaning device according to one of claims 16 to

21

characterized in that an arrangement of two or more adjacently arranged webs (60) is provided, on each of which a cleaning element (58) is held on the front side.

23. Cleaning device according to one of claims 16 to

22

characterized in that

no active fluid delivery unit, such as a pump or the like, is provided for circulating and filtering the working fluid

or

an active fluid delivery unit, such as a pump or the like, is provided for circulation and filtration of the Betriebsflüs fluid, in particular, that the pump is associated with a filter.