WO2020201480A1 - Filtre comprenant un boîtier de filtre, une cartouche filtrante remplaçable et un support de joint d'étanchéité monté sur celle-ci - Google Patents

Filtre comprenant un boîtier de filtre, une cartouche filtrante remplaçable et un support de joint d'étanchéité monté sur celle-ci Download PDF

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Publication number
WO2020201480A1
WO2020201480A1 PCT/EP2020/059500 EP2020059500W WO2020201480A1 WO 2020201480 A1 WO2020201480 A1 WO 2020201480A1 EP 2020059500 W EP2020059500 W EP 2020059500W WO 2020201480 A1 WO2020201480 A1 WO 2020201480A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
seal
seal carrier
filter housing
valve
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.)
Ceased
Application number
PCT/EP2020/059500
Other languages
German (de)
English (en)
Inventor
Franz-Josef RICHTER
Steven GROSSE-FRINTROP
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hengst SE and Co KG
Original Assignee
Hengst SE and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hengst SE and Co KG filed Critical Hengst SE and Co KG
Publication of WO2020201480A1 publication Critical patent/WO2020201480A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/153—Anti-leakage or anti-return valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions
    • B01D35/306—Filter mounting adapter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions
    • B01D35/31—Filter housing constructions including arrangements for environmental protection, e.g. pressure resisting features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/29—Filter cartridge constructions
    • B01D2201/291—End caps
    • B01D2201/295—End caps with projections extending in a radial outward direction, e.g. for use as a guide, spacing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/30—Filter housing constructions
    • B01D2201/301—Details of removable closures, lids, caps, filter heads
    • B01D2201/305—Snap, latch or clip connecting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/34—Seals or gaskets for filtering elements
    • B01D2201/347—Radial sealings
    • 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
    • B01D2201/4007—Use of cam or ramp systems
    • 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
    • B01D2201/4015—Bayonet connecting means
    • 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
    • B01D2201/4046—Means for avoiding false mounting of different parts
    • 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 with a filter housing, with an exchangeable filter element and with a seal carrier on it
  • the document DE 10 2010 020 727 A1 describes a filter for filtering fluids, in particular fuel or oil, in particular a motor vehicle, to summarize a housing that consists of at least two housing parts, and a filter element that by means of a detachable snap connection in one of the housing parts , which acts as a mounting housing part for the filter element, is attached.
  • the latching connection has at least two interacting latching components and one of the latching components is connected to the filter element and one of the latching components is connected to the fastening housing part.
  • At least one of the latching components comprises at least one latching means and one of the latching components comprises a recess corresponding to the Rastmit tel, in which the latching means hooks like a bayonet.
  • the recess has a closing area for receiving the locking means during the connection of the housing parts, a retention area for receiving the locking means during the opening of the filter housing, a translation area for solving the locking means in the recess and an import / export area for resistance-free joining and Separation of locking means and recess.
  • a ring seal can be provided on one end face of the filter element for sealing purposes be fastened against the filter housing, which is axially displaceable relative to the rotary / plug axis relative to the filter element.
  • the ring seal can advantageously have a semi-moon-shaped profile so that the ring seal is arched radially on the outside and can optimally cling to a corresponding sealing surface of the filter housing.
  • the ring seal can be flat radially on the inside and can rest in a space-saving manner on a corresponding support ring which can carry and support the ring seal.
  • the support ring can be connected to the filter element via a simple guide mechanism and can be displaced in the axial direction relative to the latter.
  • the filter element is floatingly mounted in the filter housing on this end face.
  • the ring seal can be moved in particular when opening and closing the filter housing and exchanged together with the Fil terelement.
  • the displaceable ring seal can be arranged on the end face facing away from the bottom of the fastening housing part outside the fastening housing part and seal against the inside of the other, preferably system-fixed housing part. When separating the fastening housing part from the other housing part, the ring seal can still seal against the other housing part until it reaches its displacement limit in order to prevent fluid from entering the surrounding area from the other housing part.
  • a disadvantage of this known filter is that after the separation of the housing part containing the filter insert from the other housing part during filter maintenance in the housing part containing the filter insert, remaining fluid medium, such as. B. lubricating oil leak from the housing part and can lead to contamination of the maintenance person and the environment.
  • the object is therefore to create a filter of the type mentioned at the outset which avoids the disadvantages mentioned and in which soiling of maintenance personnel and the environment is largely avoided during maintenance of the filter.
  • a filter insert that interacts with the filter should be specified.
  • the first part of the problem relating to the filter is achieved according to the invention with a filter of the type mentioned at the outset, which is characterized by
  • seal carrier also forms or has the valve body of a valve
  • end plate facing the interface between the filter housing parts forms or has the valve seat of the valve which cooperates with the valve body
  • a medium passage in a circumferential side radially outward from the filter material body of the filter insert medium space of the filter in the second filter housing part can optionally be released or shut off.
  • the possibility is advantageously created during a filter maintenance with a separation of the second filter housing part from the first filter housing seteil the medium space in the second filter housing part containing the filter insert and fluid medium border by means of the valve against the external environment and thus an undesired leakage to avoid fluid medium in the environment.
  • the valve opened Only after the second filter housing part containing the filter insert and fluid medium has been moved to a collecting container for fluid medium is the valve opened in order to drain the fluid medium into the collecting container in a controlled manner and dispose of it in an orderly manner. After the fluid medium has been drained off, the filter insert can be removed from the second filter housing part relatively cleanly and largely free of fluid medium and replaced by a fresh filter insert.
  • the valve elements are integrated into components of the filter and the filter insert that are already present, which contributes to a very space-saving design and inexpensive manufacture.
  • valve can be adjusted between its open position and its closed position by axially displacing the up device carrier and / or the filter insert. This means that a technically very simple movement process is sufficient for opening and closing the valve.
  • the seal carrier In order not to impair the sealing function of the seal carrier and the seal carried by it, it is proposed that the seal carrier have a radially inwardly ra lowing, the valve body forming collar at an axial distance from the seal carried by it.
  • an area between the seal-carrying area of the seal carrier and the collar, which connects the axially central seal carrier area has an outer diameter that is equal to or greater than the outer diameter of the seal in an unloaded state .
  • the axially central seal carrier area ensures a certain axial spacing between the seal and valve body and, on the other hand, advantageously forms a protection for the seal against mechanical damage during the installation of the filter insert in the second filter housing part that receives it.
  • a guide for the seal carrier be provided on the one hand by radially outward-pointing guide lugs or arms arranged distributed in the circumferential direction on the end disk facing the interface between the filter housing parts or on the seal carrier, and on the other hand by guide lugs or arms that extend axially on the seal carrier or on the end disk , is arranged in the circumferential direction to match the guide lugs or arms distributed, radially inwardly and at the end limited by stops guide grooves ge forms.
  • one end plate as a relatively stable part of the filter insert, carries and guides the seal carrier with the seal and the valve body.
  • the seal carrier is guided axially displaceably to a limited extent on the filter insert, and in this regard, the invention provides that a first axial displacement limit for the seal carrier through the valve seat and a second axial displacement limit for the seal carrier, preferably through radially from the end plate guiding it outwardly facing, spaced in the circumferential direction stop fingers is formed.
  • the stop fingers define a defined position of the seal carrier with the valve body in its open position, so that a defined passage cross section for the medium flow flowing through between the stop fingers is guaranteed when the valve is open.
  • the invention proposes that radially resilient sealing tabs extending radially on the outside and axially in both directions, the outer peripheral surface of which is a seal support surface for the seal or directly the seal, extend from the radially inner seal carrier area forming the valve body of the valve forms. Due to their resilient property, the sealing tabs can flexibly apply to the inner circumference of the two filter housing parts on both sides of the interface between them and also compensate for manufacturing tolerances to a certain extent. In addition, the pressure of the medium in the filter ensures that the sealing tabs are pressed against the inner circumference of the two filter housing parts, which results in a self-reinforcing sealing function.
  • the seal can be designed differently; it is preferably formed by at least one sealing ring, which is rectangular or round in cross section in its unloaded state, or by at least one sealing material layer adhered to the seal support surface.
  • the filter insert in the filter housing is expediently shifted into an axial position in which the seal overlaps the seam between the filter housing parts on the inner circumference of the filter housing parts on both sides of the seam and the device carrier is in one of the open positions of the valve appropriate location.
  • both the interface between the filter housing parts is sealed and the medium passage in the medium space in the filter housing is opened at the same time, so that the medium to be filtered can flow through the filter unhindered, but cannot escape into the environment.
  • the filter insert in order to assume a maintenance condition of the filter, the filter insert can be partially displaced in the direction of the second filter housing, the valve body and the valve seat can be brought into sealing contact and the seal can be removed from the area of the seam between the two Filter housing parts is displaceable in the second filter housing part.
  • the seal is then removed from the area of the interface between the two filter housing parts and is now in the second filter housing part, so it is in no way mechanically stressed or loaded when the two filter housing parts are separated from one another.
  • the now closed valve is still in the second filter housing part of the medium in it initially included and prevented from undesired leakage into the environment until the second housing part is taken to a suitable disposal point, where the medium is drained or poured out in a controlled manner after the valve is opened can.
  • a valve can also be provided at the central opening of the filter insert in order to prevent fluid from escaping there as well during filter maintenance.
  • a mechanism for releasing a volume can be provided on the filter insert and / or the cup-shaped, second Filterge housing part, through which a fluid level in the cup-shaped, second filter housing part is lowered.
  • an actuating element is provided on the second filter housing part, which can be actuated from the outside and inside the Fil tergeophuses in a tensile and shear-proof engagement only with the seal carrier or with the filter insert including the seal carrier, whereby only the seal carrier or the filter insert including the seal carrier in the filter housing can be displaced in the axial direction by actuating the actuating element.
  • the filter according to the invention can be designed differently.
  • a first embodiment provides that the filter housing parts can be connected to one another and separated from one another by being displaced relative to one another transversely to their longitudinal direction along sliding guides provided on them.
  • the filter housing parts can be connected to one another and separated from one another by means of matching screw threads by rotating them relative to one another about their longitudinal axis.
  • the filter insert assumes and maintains a defined position in the axial direction in the filter housing when the filter is assembled, provision is made for a spacer or a detachable snap-in connection to be arranged between a base of the cup-shaped second filter housing part and the end plate of the filter insert facing the base.
  • the parts of the actuating element inside the housing can also advantageously be arranged, provided such an actuating element is provided for the filter.
  • the solution to the second part of the problem relating to the filter insert is achieved according to the invention with a filter insert for interaction with a filter according to one of claims 1 to 13, the filter insert having a filter material body and two end disks enclosing it at the front, with relative to the one in the installed state the interface between the two filter housing parts of the filter housing of the filter facing end disk wear a seal the annular seal carrier is guided relative to the end disk axially limited displaceable Lich on the filter insert and wherein the filter insert is characterized
  • seal carrier also forms or has the valve body of a valve
  • a medium passage in a circumferential side radially outward from the filter material body of the filter insert medium space of the filter in the second filter housing part can optionally be opened or closed.
  • the filter insert according to the invention is designed to interact with the filter described above and has the features required for this, but remains relatively simple in construction and thus reliable in its function and inexpensive to manufacture.
  • the seal carrier preferably has, at an axial distance from the seal carried by it, a collar which projects radially inwards and forms the valve body.
  • the invention also provides that an axially central seal carrier area, which is located between the seal-carrying area and the collar and connects it, has an outer diameter that is equal to or greater than the outer diameter of the seal in its unloaded state.
  • an axially central seal carrier area which is located between the seal-carrying area and the collar and connects it, has an outer diameter that is equal to or greater than the outer diameter of the seal in its unloaded state.
  • the seal can be held in particular easily displaceable on the seal carrier and only finally pressed when moving into its operating position.
  • a spreading contour can also be provided on the seal carrier, which expands the diameter of the sealing ring during pressing in order to press it against the filter housing parts.
  • a guide for the seal carrier can be provided on the one hand by axially extending, radially outwardly pointing guide ribs on the end plate facing the seam between the filter housing parts and distributed in the circumferential direction, and on the other hand by a radially inner guide ribs on the seal carrier in a radial plane in the circumferential direction , the valve body of the Ven tils forming, annular seal carrier area be formed.
  • a first axial displacement limit for the seal carrier through the valve seat and a second axial displacement limit for the device carrier is formed by the end plate leading him radially outwardly, circumferentially spaced stop fingers.
  • annular circumferential resilient sealing tabs from the radially inner seal carrier area forming the valve body of the valve extend radially outside axially in both directions, annular circumferential resilient sealing tabs, the outer peripheral surface of which forms a seal support surface for the seal or directly the seal.
  • a one-piece sealing profile or two separate sealing profiles can be arranged at an axial distance as a seal on one / the seal support surface arranged on the outer circumference of the seal carrier.
  • the seal is formed by at least one sealing ring, which is essentially rectangular or round in cross section in its unloaded state, or by at least one sealing material layer or sealing material coating adhered to the sealing bearing surface.
  • FIG. 1 shows a first filter with a filter insert, in a filtering operating state, in a longitudinal section
  • FIG. 2 shows the filter with filter insert from FIG. 1, in a maintenance state, also in longitudinal section,
  • FIG. 3 shows the filter insert of the filter from Figures 1 and 2 as an individual part, in one
  • FIG. 4 shows a section of the filter in the area of its interface between two filter housing parts, with a seal carrier and valve in a first functional position, in an enlarged longitudinal section,
  • Figure 5 shows the same section of the filter as in Figure 4, with the device carrier and valve in a second functional position, in an enlarged longitudinal section,
  • FIG. 11 shows the filter with filter insert, in a second embodiment, in a filtering operating state, in longitudinal section
  • Figures 1 and 2 of the drawing show a first filter 1 with a two-part filter housing 10 and with a replaceable filter insert 2 arranged therein, each in longitudinal section, in Figure 1 in a filtering operating state and in Figure 2 in a maintenance state.
  • the filter housing 10 is composed here of a first, upper Filterge housing part 10.1 and a second, cup-shaped lower filter housing part 10.2.
  • the first filter housing part 10.1 has, on its end face pointing upwards in FIG. 1, a connection flange 16 with a circumferential seal 16 'and with a central clean medium outlet 12' with an internal thread, by means of which the filter 1 is connected to a corresponding counter-connection flange, for example a Internal combustion engine, e.g. B. in a function as an oil filter, can be screwed on.
  • a plurality of perforations, which together form a raw medium inlet 12, are arranged radially outside of the clean medium outlet 12 ′ and radially inside from the seal 16 ′.
  • connection flange 16 is designed here so that the filter 1 can be used instead of a conventional screw-on filter cartridge that can only be replaced as a whole.
  • the second filter housing part 10.2 is cup-shaped and releasably connected at its obe Ren, open edge to the first filter housing part 10.1 along a seam 15 '.
  • the two filter housing parts 10.1, 10.2 are connected and disconnected by sliding the second filter housing part 10.2 relative to the first filter housing part 10.1 in a direction transverse to the longitudinal direction 30 of the filter 1.
  • the filter 1 is assembled and ready for operation and the seam 15 'between the two filter housing parts 10.1, 10.2 is provided by a radially sealing on the inner circumference of the two filter housing parts 10.1, 10.2, the seam 15' bridging and overlapping, rectangular in cross-section and sufficiently high seal 41, which is part of the replaceable filter element 2 arranged in the filter housing 10 with a device carrier 40 arranged thereon, sealed.
  • the filter insert 2 here consists of a hollow cylindrical filter material body 20 which is framed on the front side by a lower end plate 21 and an upper end plate 22 you tend.
  • a lattice-shaped support body 27 is arranged, which supports the filter material body 20 during its flow in the radial direction from the outside to the inside against a collapse when the filter 1 is in operation.
  • the second filter housing part 10.2 has a plurality of axially extending, rib-shaped first guide elements 14 distributed in the circumferential direction on its inner circumference. These guide elements 14 act with second guide elements 24 of the filter insert 2 which protrude radially outward from the lower end disk 21 and are visible in FIG together in the sense that the filter insert 2 is guided in its inserted into the second filter housing part 10.2 to be axially displaceable, but non-rotatable in the circumferential direction or only limited rotatably defined.
  • the lowermost part of the second filter housing part 10.2 is formed by a base 10.3 which is designed with a central through hole 13.
  • an actuating element 3 is mounted in a sealing manner, rotatable about a central axis of rotation 30, by means of an axially central bearing part 33 with a bearing sealing ring 34 interposed.
  • An axially outer actuating element part 31 of the actuating element 3 forms one of the outer contour of the bottom 10.3 of the second filter housing seteils 10.2 following handle, with which the actuating element 3 can be manually rotated about its axis of rotation 30.
  • a turning tool attachment can be provided on the outside of the actuating element 3.
  • first engagement elements 36 At a lying within the second filter housing part 10.2 axially inner loading actuating element part 32 are first engagement elements 36, here in the form of several circumferentially distributed, radially inwardly pointing guide pins, is arranged.
  • a hollow cylindrical extension 25 extends downward in the axial direction from the underside of the lower end disk 21.
  • second engagement elements 26, here in the form of helical grooves with open axially lower ends, are formed, which handle elements 36 of the actuating element 3 interact with the first A.
  • the intervention elements Elements 26, 36 can be brought into and out of engagement and their interaction is such that when the actuating element 3 is rotated about the axis of rotation 30, the filter insert 2 is moved in the axial direction relative to the second filter housing part 10.2.
  • the filter insert 2 In the operational state of the filter 1 shown in Figure 1, the filter insert 2 is in its upper end position, in which, as described above, the sealing ring 41 on the filter insert 2 sealingly covers the interface 15 'between the two filter housing parts 10.1, 10.2 and at the same time the Fil ter formulate 2 a separation of the two filter housing parts 10.1, 10.2 blocks from each other.
  • FIG. 2 shows the filter 1 from FIG. 1 in a second maintenance state that allows the two parts 10.1, 10.2 of the filter housing 10 to be separated, also in longitudinal section.
  • the filter insert 2 is moved downward by turning the actuating element 3 in the axial direction so far that the sealing ring 41 at the upper end of the filter insert 2 is now axially below the seam 15 'between the two filter housing parts 10.1, 10.2.
  • the two filter housing parts 10.1, 10.2 are no longer locked or locked against each other and the lower filter housing part 10.2 can now ben shifted transversely to the longitudinal direction 30 of the filter 1 against the first, upper filter housing part 10.1 and so be separated from the first filter housing part 10.1.
  • the second filter housing part 10.2 with the Filterein set 2 located therein can be handled separately and, for example, moved to a liquid collecting container for emptying residual medium, in particular residual liquid, by pouring out.
  • the continued engagement between the filter insert 2 and the actuating element 3 ensures that the filter insert 2 does not fall out of the second filter housing part 10.2 when the residual medium is poured out.
  • valve 4 can be adjusted between its open position and its closed position by axially displacing the filter insert 2 and the seal carrier 40.
  • the valve 4 In the filtering operating state of the filter 1 shown in FIG. 1, the valve 4 is in its open position, in which the valve body 42 on the device carrier 40 has stood from the valve seat 43 radially outside on the upper end plate 22, i.e. the medium passage 44 is open. With the valve 4 in this open position, a medium to be filtered can flow through the raw medium inlet 12, the medium inlet area 17 and the medium passage 44 into the medium space 17 'radially outside of the filter material body 20 of the filter insert 2, from there in the radial direction from the outside to the inside Retention of dirt particles to flow through the filter material body 20.
  • the filtered medium passes through a central opening 22 'in the second, upper end plate 22 of the filter insert 2, separated from the raw medium inlet 12 in terms of flow, to the clean medium outlet 12' arranged centrally in the connecting flange 16.
  • the seal carrier 40 has at an axial distance from the seal 41 carried by it, here offset downward in the direction of the second filter housing part 10.2, a radially inwardly projecting collar forming the valve body 42.
  • a guide for the seal carrier 40 is here on the one hand by at the seam point 15 'between the filter housing parts 10.1, 10.2 facing end plate 22 distributed in the circumferential direction, radially outwardly pointing guide lugs or arms 46 and on the other hand by extending on the seal carrier 40 in the axial direction, Formed distributed in the circumferential direction to match the guide lugs or arms 46, guide grooves 47 pointing radially inward and limited at the end by stops.
  • the seal carrier 40 with the valve body 42 is guided axially displaceably to a limited extent in the axial direction relative to the filter insert 2 and its upper end plate 22 and is supported by the end plate 22.
  • the central opening 22 'of the upper end plate 22 can be closed by a non-dargestell th valve, for example by a pressure-actuated or positively opened shut-off valve, in order to prevent fluid from escaping from the interior of the filter insert 2 during filter maintenance.
  • the second filter housing part 10.2 can be brought to a collecting container for used filter inserts 2 in order to engage the actuation element 3 with the first engagement elements 36 and the filter insert 2 by rotating the actuating element 3 in the release direction to be released with the second engagement elements 26, so that the filter insert 2 then falls out of the second filter housing part 10.2 turned upside down into the collecting container by gravity without having to be touched by an operator.
  • the used filter element 2 can be removed from the second filter housing part 10.2 as far as possible free of fluid medium, ie relatively clean, and then replaced by a fresh filter element 2.
  • FIG 3 shows the filter insert 2 of the filter 1 from Figures 1 and 2 as a single part, in a view obliquely from above.
  • the filter insert 2 has a hollow, röhrenförmi gene, here hollow cylindrical, filter material body 20 from a zigzag folded Filter material web on the end face of the two end disks 21, 22 is a sealing summarized.
  • annular umlau fender seal carrier 40 is arranged on its end plate 22 there, which in relation to the rest of the filter insert 2 forms its radially outermost part and is axially displaceable.
  • the seal carrier 40 has several functions here:
  • the second function of the seal carrier 40 is to catch the seal 41 on its paramountum, which covers and seals the seam 15 'between the two interconnected Filtergeophusetei len 10.1, 10.2 in the barrier division of the seal carrier 40.
  • the third function of the seal carrier 40 is to provide, together with the axially displaceable end plate 22 of the filter insert 2, the valve 4 already described above, which optionally area the medium passage 44 between the medium inlet visible in Figures 1 and 2 17 and medium space 17 'opens or blocks.
  • a guide is used which is distributed on the end plate 22 by guide lugs or arms 46 that are distributed in the circumferential direction and pointing radially outward and on the side of the seal carrier 40 is formed by on the inner circumference in the circumferential direction to match the guide lugs or arms 46 arranged and engaged with these, extending in the axial direction and limited by stops at the ends, radially inwardly open guide grooves 47 is formed.
  • the end plate 22 is provided with a central opening 22 'surrounded on the top by a sealing collar, through which the filtered medium flows through the filter material body 20 from the inside of the filter insert 2, in terms of flow separated from the raw medium inlet 12 and can flow from the medium inlet area 17 to the clean medium outlet 12 ′ of the filter 1.
  • the second guide elements 24, here in the form of radially outwardly protruding in the circumferential direction of the end plate 21, are on its radially outer edge distributed wings, formed with the first rib-shaped axial guide elements 14 visible in FIGS. 1 and 2 on the inner circumference of the second filter housing part 10.2 to prevent rotation or to limit the rotation angle for the filter insert 2 relative to the second filter housing part 10.2.
  • the end plate 21 has a hollow-cylindrical extension 25 on the underside with second engagement elements 26.
  • the latter are designed as radially outwardly white send, each in the circumferential direction helically over part of the circumference of the extension 25 running, at their one, lower end 26 'in the axial direction open guide grooves.
  • These guide grooves serve to interact with first engagement elements 36 in the form of guide pins on an axially inner actuating element part 32 of the actuating element 3, which is located in the second filter housing part 10.2 and which is shown in FIGS. 1 and 2.
  • Figure 4 shows a section of the filter 1 in the area of its seam 15 'between tween the two filter housing parts 10.1, 10.2, with a modified sealing support 40 and the valve 4 in a first functional position, in an enlarged longitudinal section.
  • On the left in Figure 4 is a lower area of the first, upper filter housing part 10.1 and below an upper area of the second, lower filter housing part 10.2 in their interconnected state along the sliding guides 11.1, 11.2 and with the interface 15 'between them visible .
  • the filter insert 2 In the interior of the second filter housing part 10.2 there is the filter insert 2, of which only an upper end area with the upper end disk 22 and the seal carrier 40 guided axially displaceably thereon is partially visible.
  • a circumferential collar extends upward and outward in the shape of an arc and forms the valve seat 43 for the valve 4 at its upper, free end.
  • stop fingers 48 Spaced apart from one another in the circumferential direction extend radially outward from the collar.
  • the ring-shaped circumferential seal carrier 40 is approximately T-shaped in cross-section, with a T-stem forming a radially inner seal carrier region 47 'pointing radially inward and the valve body 42 of valve 4 radially inward forms.
  • a radially outer seal carrier area forming T-bar is located radially on the outside, is aligned in the Axialrich direction and forms two radially resilient sealing tabs 40 ', which are covered on their outer circumference with a continuous seal 41, for example from egg ner elastomer pad.
  • FIG. 5 shows the same section of the filter 1 as in Figure 4, with the device carrier 40 and the valve 4 now in a second functional position, again in an enlarged longitudinal section.
  • the filter insert 2 is now moved upwards by means of the actuating element 3, which is not visible here, as a result of which the seal carrier 40 with the seal 41, which is also carried upwards by the stop fingers 48, has now come into congruence with the seam 15 'and covers this medi umdicht.
  • FIG. 6 shows the same section of the filter 1 as in Figure 4, with the device carrier 40 and the valve 4 in a third functional position, again in one enlarged longitudinal section.
  • the filter element 2 is moved so far downward, i.e. in the direction of the second filter housing part 10.2, in comparison to its position according to FIG. 5, that the valve body 42 on the device carrier 40 and the valve seat 43 on the end plate 22 of the filter element 2 now lie against each other in a sealing system.
  • the valve 4 is thus now in the closed position.
  • the seal carrier 40 with its two resilient sealing tabs 40 ' is not axially displaced compared to the state according to Figure 5 and is still in its position in which it covers the joint 15' between the two filter housing parts 10.1, 10.2 and seals and in which it blocks the separation of the filter housing parts 10.1, 10.2.
  • FIG. 7 shows a section of the filter insert 2, with the seal carrier 40 and the valve 4 in the third functional position already explained, partly in longitudinal section and partly in a view obliquely from below.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

La présente invention concerne un filtre (1) comprenant un boîtier de filtre (10) constitué d'au moins deux parties de boîtier de filtre (10.1, 10.2) reliées l'une à l'autre de manière libérable, une cartouche filtrante (2) étant agencée dans la deuxième partie de boîtier de filtre (10.2) de manière à pouvoir être remplacée, cette cartouche filtrante (2) comprenant un corps de matière filtrante (20) ainsi que deux plaques terminales (21, 22), un support de joint d'étanchéité (40) annulaire portant un joint d'étanchéité (41) étant guidé de manière à pouvoir être déplacé sur la cartouche filtrante (2), avec une limite axiale, par rapport à la plaque terminale (22) orientée, à l'état monté, vers une jonction (15') entre les deux parties de boîtier de filtre (10.1, 10.2). Le filtre selon l'invention est caractérisé en ce que le support de joint d'étanchéité (40) forme ou comprend à la fois le corps de soupape (42) d'une soupape (4), en ce que la plaque terminale (22) orientée vers la jonction (15') entre les parties de boîtier de filtre (10.1, 10.2) forme ou comprend le siège de soupape (43) de la soupape (4) coopérant avec le corps de soupape (42), et en ce qu'un passage pour milieu (44) dans une chambre à milieu (17') du filtre (1) se trouvant en périphérie, radialement à l'extérieur du corps de matière filtrante (20) de la cartouche filtrante (2) dans la deuxième partie de boîtier de filtre (10.2), peut être sélectivement libéré ou bloqué, au moyen de la soupape (4). Cette invention concerne en outre une cartouche filtrante (2) conçue pour coopérer avec le filtre (1).
PCT/EP2020/059500 2019-04-05 2020-04-03 Filtre comprenant un boîtier de filtre, une cartouche filtrante remplaçable et un support de joint d'étanchéité monté sur celle-ci Ceased WO2020201480A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019108957.3 2019-04-05
DE102019108957.3A DE102019108957A1 (de) 2019-04-05 2019-04-05 Filter mit einem Filtergehäuse, mit einem auswechselbaren Filtereinsatz und mit einem Dichtungsträger daran

Publications (1)

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WO2020201480A1 true WO2020201480A1 (fr) 2020-10-08

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PCT/EP2020/059500 Ceased WO2020201480A1 (fr) 2019-04-05 2020-04-03 Filtre comprenant un boîtier de filtre, une cartouche filtrante remplaçable et un support de joint d'étanchéité monté sur celle-ci

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DE (1) DE102019108957A1 (fr)
WO (1) WO2020201480A1 (fr)

Cited By (2)

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EP4085987A1 (fr) * 2021-05-07 2022-11-09 Hengst SE Cartouche de filtre à huile
EP4085986A1 (fr) * 2021-05-07 2022-11-09 Hengst SE Cartouche de filtre à huile

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US20030183568A1 (en) * 2002-03-26 2003-10-02 Hoffman Charles S. Length-adjustable filter cartridge end caps, filter cartridges employing, and methods of making, the same
DE102010020727A1 (de) 2010-05-17 2011-11-17 Mann + Hummel Gmbh Filter, Filterelement, Befestigungsgehäuseteil eines Filtergehäuses und Telekopschaltelement einer Schalteinrichtung einer lösbaren Rastverbindung
WO2014165606A2 (fr) * 2013-04-03 2014-10-09 Donaldson Company, Inc. Ensemble filtre à liquide et procédés associés
DE202013011841U1 (de) * 2013-12-11 2015-03-18 Mann + Hummel Gmbh Filtersystem und Filterelement mit Kupplungsvorrichtung und Dichtungsvorrichtung

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DE202014104029U1 (de) * 2014-08-28 2014-10-20 Hengst Se & Co. Kg Filter, der an einem Anschlussflansch anbaubar ist, und Filtereinsatz

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Publication number Priority date Publication date Assignee Title
US20030183568A1 (en) * 2002-03-26 2003-10-02 Hoffman Charles S. Length-adjustable filter cartridge end caps, filter cartridges employing, and methods of making, the same
DE102010020727A1 (de) 2010-05-17 2011-11-17 Mann + Hummel Gmbh Filter, Filterelement, Befestigungsgehäuseteil eines Filtergehäuses und Telekopschaltelement einer Schalteinrichtung einer lösbaren Rastverbindung
WO2014165606A2 (fr) * 2013-04-03 2014-10-09 Donaldson Company, Inc. Ensemble filtre à liquide et procédés associés
DE202013011841U1 (de) * 2013-12-11 2015-03-18 Mann + Hummel Gmbh Filtersystem und Filterelement mit Kupplungsvorrichtung und Dichtungsvorrichtung

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4085987A1 (fr) * 2021-05-07 2022-11-09 Hengst SE Cartouche de filtre à huile
EP4085986A1 (fr) * 2021-05-07 2022-11-09 Hengst SE Cartouche de filtre à huile
WO2022233868A1 (fr) 2021-05-07 2022-11-10 Hengst Se Cartouche de filtre à huile
WO2022233867A1 (fr) 2021-05-07 2022-11-10 Hengst Se Cartouche de filtre à huile
CN117561106A (zh) * 2021-05-07 2024-02-13 汉格斯特欧洲股份公司 油过滤器滤芯
US12053727B2 (en) 2021-05-07 2024-08-06 Hengst Se Oil filter cartridge
US12214302B2 (en) 2021-05-07 2025-02-04 Hengst Se Oil filter cartridge
US12589339B2 (en) 2021-05-07 2026-03-31 Hengst Se Oil filter cartridge

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