EP4598654A1 - Filter, durch einen griff entriegelbares filterelement, griff zum entnehmen eines filterelements und verfahren zur demontage eines filters - Google Patents
Filter, durch einen griff entriegelbares filterelement, griff zum entnehmen eines filterelements und verfahren zur demontage eines filtersInfo
- Publication number
- EP4598654A1 EP4598654A1 EP23786514.2A EP23786514A EP4598654A1 EP 4598654 A1 EP4598654 A1 EP 4598654A1 EP 23786514 A EP23786514 A EP 23786514A EP 4598654 A1 EP4598654 A1 EP 4598654A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- filter element
- handle
- locking
- latching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
- B01D46/2414—End caps including additional functions or special forms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D27/00—Cartridge filters of the throw-away type
- B01D27/08—Construction of the casing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4227—Manipulating filters or filter elements, e.g. handles or extracting tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/88—Replacing filter elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/24—Tools used for the removal of filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/40—Special measures for connecting different parts of the filter
- B01D2201/4084—Snap or Seeger ring connecting means
Definitions
- Filter filter element unlockable by a handle, handle for removing a filter element and method for disassembling a filter
- the invention relates to a filter with a filter housing, a filter element and a handle for removing the filter element from the filter housing.
- the invention further relates to a method for disassembling the filter.
- a filter as described above is known from EP 3 263 202 A1. Furthermore, a filter with a filter head and a filter element that can be detachably connected to the filter head is known from WO 2022/076248 A1.
- a filter is provided with a filter housing, a handle and a filter element.
- the filter element is held axially secured in the filter housing by a filter element locking mechanism with at least one locking web.
- the locking web can be moved radially at least in sections.
- the handle can be connected to the filter element by a handle locking mechanism with at least one locking finger.
- the locking finger can be moved radially at least in sections for this purpose.
- the handle has at least one actuating surface for releasing the filter element locking mechanism. The actuating surface actuates a displacement surface of the filter element locking mechanism and thereby at least indirectly releases the filter element locking mechanism.
- a single movement namely pushing the handle onto the filter element, can connect the handle to the filter element and release the filter element from its locking mechanism in the filter housing.
- This makes it easier to remove the filter element, which is securely fixed in place during normal operation. Since the handle is only placed onto the filter element when the filter is dismantled, no space needs to be provided for the handle in the installation position, which means that the available installation space is used optimally.
- the handle, filter element and filter housing form a key-lock system that prevents the use of incorrect components when servicing.
- the locking web and/or the locking finger preferably extend axially at least in sections, in particular completely.
- the locking web and/or the locking finger is/are preferably made of sheet metal or plastic, particularly preferably plastic.
- the locking finger is preferably L-shaped.
- the filter element has a filter medium that surrounds a longitudinal axis in a ring shape.
- the filter medium can be folded or wound in a star shape, for example.
- the filter medium can be round or oval in cross section.
- the handle can be made up of several parts.
- the handle locking mechanism and the actuating surface can be made on two different components.
- the handle is preferably made in one piece.
- the handle is made up of several parts and does not have an actuating surface for unlocking the locking devices on the filter housing.
- the handle is only used to remove the filter element from the filter housing.
- the filter insert can be released from the housing using a separately designed actuating device by moving locking bars through the separately designed actuating device and releasing the filter element.
- the filter medium can be stabilized radially on the inside by a support body, in particular in the form of a support tube. Alternatively or additionally, the filter medium can be stabilized radially on the outside by a cage. For external stabilization, in particular of a wound filter medium, a thread winding can also be attached to the filter element.
- the filter element can have an end plate - also at least partially open - on a lower end face of the filter medium.
- the filter element can have an end plate - also at least partially open - on an upper end face of the filter medium.
- the filter element can be flowed through from radially outside to radially inside.
- the locking finger and/or the locking web can engage behind the upper end plate at least in sections. This makes the design of the filter particularly simple.
- the filter element serves to center the handle and to lock the handle.
- the filter element can have means for guiding the handle into the locking position, for example webs or grooves that interact with grooves or webs on the handle.
- the filter is preferably designed in the form of a liquid filter.
- the liquid filter is preferably designed in the form of a fuel filter or an oil filter.
- the filter is particularly preferably designed in the form of a water-separating fuel filter, in particular a multiple water-separating fuel filter.
- Such a filter element can be sealed with an O-ring against the filter housing, so that the filter element sits very firmly in the filter housing, but can still be easily replaced using the handle according to the invention.
- a particularly simple design of the filter is achieved if the locking bar is provided on the filter housing and/or the locking finger is provided on the handle.
- the actuating surface is further preferably formed on the locking finger.
- the actuating surface is preferably formed opposite a locking projection of the locking finger.
- the handle locking mechanism has a plurality of locking fingers.
- the locking fingers are particularly preferably arranged or formed symmetrically, in particular axially symmetrically, on the handle.
- the handle locking mechanism preferably has at least six locking fingers.
- the locking fingers are preferably designed identically.
- a plurality of locking bars are provided on the filter housing and a plurality of actuating surfaces are provided on the handle for at least indirectly moving the locking bars.
- two locking fingers are provided next to a locking web, wherein the locking webs are each provided between two locking fingers.
- the locking webs can each be connected to two displacement surfaces.
- the displacement surfaces are preferably arranged or formed on the locking webs at the free ends of the locking webs.
- the displacement surfaces can be designed symmetrically, wherein the actuating surfaces are preferably arranged radially on two displacement surfaces when the handle is pushed on.
- the structural design of the filter can be further simplified if the filter housing has a ring with at least one locking web.
- the ring preferably has all locking webs and in particular all actuating surfaces.
- the ring can be made in one piece, in particular from plastic.
- the ring can be connected to at least one other component of the filter housing by a welded connection.
- the object according to the invention is finally achieved by a method for disassembling a filter described here with the following method steps: a) sliding on the handle while locking the handle with the filter element and releasing the filter element lock; b) pulling out the filter element.
- a locking finger in particular all locking fingers, are connected to the filter element by sliding the handle onto the filter element and a locking web, in particular all locking webs, are released from the filter element.
- Fig. 1 is a perspective view of a filter with a filter housing, a filter element arranged in the filter housing and a handle for connecting to the filter element, unlocking the filter element in the filter housing and removing the filter element;
- Fig. 2 shows the filter from Fig. 1 with the handle placed on the filter element, whereby the locking of the filter element in the filter housing is released by placing the handle on;
- Fig. 3 shows the filter from Fig. 2 with the filter element removed from the filter housing
- Fig. 4 is a perspective view of the handle according to Figs. 1 to 3, wherein Fig. 4 shows downwardly projecting locking fingers for gripping the filter element;
- Fig. 5 is a perspective view of a ring mounted in the filter housing according to Figs. 1 to 3, the ring having locking webs for holding the filter element in the filter housing;
- Fig. 6 is a partially sectioned perspective view of the filter according to Figs. 1 to 3, with the handle not fully fitted onto the filter element;
- Fig. 7 is a longitudinal sectional view of the filter of Fig. 2, from which it can be seen that by placing the handle on the filter element, the engagement of the locking bar with the filter element is released.
- Fig. 1 shows a filter 10 with a filter housing 12, a filter element 14 installed in the filter housing 12 and a handle 16.
- the filter 10 is designed in the form of a fuel filter.
- Fig. 2 shows the filter 10 with the handle 16 placed on the filter element 14.
- the handle 16 is locked to the filter element 14. Forces can be introduced into the filter element 14 via a handle bar 18 in order to release it from its fixed seat in the filter housing 12.
- Fig. 3 shows the filter 10 with the filter element 14 pulled out of the filter housing 12, wherein the filter element 14 is still firmly connected to the handle 16 so that the filter element 14 can be easily handled.
- Figs. 1 to 3 show a method 19 according to the invention for disassembling the filter element 14 from the filter housing 12.
- Fig. 4 shows the handle 16 with several locking fingers, of which only the locking fingers 20a, 20b are provided with a reference number for reasons of clarity.
- the handle 16 is preferably made in one piece (single part) and/or from plastic.
- the locking fingers, here the locking fingers 20a, 20b, are arranged in pairs. Preferably, several locking finger pairs (here six) are provided on the handle 16, evenly distributed around the circumference.
- the locking fingers 20a, 20b are formed axially in sections.
- the locking fingers 20a, 20b can each have an actuating surface 22a, 22b, preferably on their radial outer side.
- the actuating surfaces 22a, 22b serve to release the locking of the filter element 14 (see Fig. 2) in the filter housing 12 (see Fig. 2). This locking can be seen in connection with Fig. 4 and Fig. 5.
- Fig. 5 shows a ring 24 which is fixedly arranged on the filter housing 12 (see Fig. 2) and has several locking webs, of which only the locking webs 26a, 26b are provided with a reference number for reasons of clarity.
- the locking webs 26a, 26b serve to lock or axially secure the filter element 14 (see Fig. 2) in the filter housing 12 (see Fig. 2).
- the locking webs 26a, 26b each preferably have a locking edge 28 which can be seen on the locking web 26b in Fig. 5.
- the locking edge 28 at least partially overlaps the filter element 14 (see Fig. 2) in its assembled state.
- the locking webs 26a, 26b can be provided, in particular centrally, between displacement surfaces, whereby in Fig. 5 only the displacement surfaces 30a, 30b, 30c, 30d are provided with a reference number for reasons of clarity.
- the displacement surfaces 30a, 30b are on the radial inside of the ring 24 - hidden in Fig. 5.
- the displacement surfaces 30a-d are preferably provided radially on the inside.
- the displacement surfaces 30a-d preferably correspond in their circumferential arrangement with the locking fingers 20a, 20b (see Fig. 4), so that the actuating surfaces 22a, 22b (see Fig. 4) displace the displacement surfaces 30a-d when the handle 16 is pushed on and move the locking webs 26a, 26b, in particular radially outwards, so that the locking edges 28 no longer overlap the filter element 14 (see Fig. 2).
- Fig. 6 shows the filter 10 with the filter housing 12 partially removed.
- the handle 16 is about to grip behind an upper end plate 32 of the filter element 14 with its locking fingers.
- the locking finger 20c displaces a displacement surface 30e in order to release a locking connection of the filter housing 12 with the filter element 14.
- Fig. 7 shows a longitudinal sectional view of the filter 10. From Fig. 7 it can be seen that the filter element 14 is axially symmetrical to its longitudinal axis 34. It has a filter medium 36 which is folded in a star shape and is supported radially on the inside against a support body 38.
- a lower end disk 40 is sealed with a sealing ring 42, here in the form of an O-ring, against the inside of the filter housing 12. This sealing seat is usually very tight, so that the handle 16 must be used to pull the filter element 14 out of the filter housing 12.
- Fig. 7 shows the filter element 14 with the handle 16 attached.
- Locking fingers of which a locking finger 20d is provided with a reference symbol
- unlock locking webs of which a locking web 26c is provided with a reference symbol in Fig. 7.
- the connection of the locking fingers 20d to the filter element 14 forms a handle locking mechanism 44.
- the connection of the locking webs 26c to the filter element 14 forms a filter element locking mechanism 46.
- At least one stop finger prevents the handle 16 from being pushed too deeply into the filter housing 12 when the filter element 14 has already been removed, from becoming jammed and then only being able to be removed in a complex manner.
- the invention relates in summary to a filter 10 with a filter housing 12, a filter element 14 and a handle 16.
- the filter housing 12 can have at least one locking web 26a-c to hold the filter element 14 axially in the filter housing 12.
- the locking web 26a-c can preferably be released at least indirectly by an actuating surface 22a, 22b of a locking finger 20a-d on the handle 16.
- the locking finger 20a-d preferably locks the handle 16 on the filter element 14, in particular the locking finger 20a-d engages behind an upper end plate 32 of the filter element 14.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022125986.2A DE102022125986A1 (de) | 2022-10-07 | 2022-10-07 | Durch einen Griff entriegelbares Filterelement |
| PCT/EP2023/077537 WO2024074598A1 (de) | 2022-10-07 | 2023-10-05 | Filter, durch einen griff entriegelbares filterelement, griff zum entnehmen eines filterelements und verfahren zur demontage eines filters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4598654A1 true EP4598654A1 (de) | 2025-08-13 |
Family
ID=88315839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23786514.2A Pending EP4598654A1 (de) | 2022-10-07 | 2023-10-05 | Filter, durch einen griff entriegelbares filterelement, griff zum entnehmen eines filterelements und verfahren zur demontage eines filters |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20250242281A1 (de) |
| EP (1) | EP4598654A1 (de) |
| JP (1) | JP2025532363A (de) |
| CN (1) | CN119894586A (de) |
| DE (1) | DE102022125986A1 (de) |
| WO (1) | WO2024074598A1 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4415890A1 (de) * | 1994-05-05 | 1995-11-09 | Knecht Filterwerke Gmbh | Verfahren zum Herausnehmen eines Filterelements |
| US20150196999A1 (en) * | 2015-03-25 | 2015-07-16 | Caterpillar Inc. | Strainer removal tool for a liquid container |
| DE102015207565B4 (de) * | 2015-04-24 | 2020-06-18 | Robert Bosch Gmbh | Filterelement, Flüssigkeitsfilter und Anordnung |
| DE102016007849A1 (de) * | 2016-06-29 | 2018-01-04 | Mann+Hummel Gmbh | Entnahmesystem sowie Entnahmehilfe für ein Abscheideelement |
| US20230347266A1 (en) | 2020-10-08 | 2023-11-02 | Cummins Filtration Inc. | Filter cartridge retention feature |
-
2022
- 2022-10-07 DE DE102022125986.2A patent/DE102022125986A1/de active Pending
-
2023
- 2023-10-05 CN CN202380066680.4A patent/CN119894586A/zh active Pending
- 2023-10-05 WO PCT/EP2023/077537 patent/WO2024074598A1/de not_active Ceased
- 2023-10-05 EP EP23786514.2A patent/EP4598654A1/de active Pending
- 2023-10-05 JP JP2025519675A patent/JP2025532363A/ja active Pending
-
2025
- 2025-03-20 US US19/085,252 patent/US20250242281A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2025532363A (ja) | 2025-09-29 |
| CN119894586A (zh) | 2025-04-25 |
| DE102022125986A1 (de) | 2024-04-18 |
| US20250242281A1 (en) | 2025-07-31 |
| WO2024074598A1 (de) | 2024-04-11 |
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Legal Events
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 17P | Request for examination filed |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
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| 17Q | First examination report despatched |
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