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
  • B01D29/111—Making filtering elements
• • 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
  • B01D2201/00—Details relating to filtering apparatus
  • B01D2201/04—Supports for the filtering elements
  • B01D2201/043—Filter tubes connected to plates
  • B01D2201/0438—Filter tubes connected to plates mounted substantially vertically on plates at the lower side of the filter elements
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01D—SEPARATION
  • B01D2201/00—Details relating to filtering apparatus
  • B01D2201/29—Filter cartridge constructions
  • B01D2201/291—End caps
• • 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
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S277/00—Seal for a joint or juncture
  • Y10S277/91—O-ring seal

Definitions

• the invention relates to an adapter for fastening a filter element in a cylindrical receiving opening of a bottom part of a Filtergehauseunterteils with at least one arranged on the adapter circumference in a circumferential groove seal for fluid-tight separation of the outer shell of the filter surrounding Unfiltratraumes from the medium to be filtered is fed to the filter of a Filtratraum, in which the filtrate from the filter is introduced.
• Unfiltratraum separates from a Filtratraum over which the filter cartridges are each connected to a central outlet.
• the filter cartridges have in the vertical direction at its lower end a fluid-tight annular end cap with a central outlet, which is connected to the rohrformigen adapter over which the filter cartridge is inserted into the cylindrical opening of the housing bottom.
• Unfiltratraum is the filter cartridge with its fluid funnellassigen quihulle, wherein the annular End cap facing away from the housing bottom upper edge forms a fluid-tight transition region to the outer shell.
• the known adapter has two parallel, circumferential grooves, in each of which an O-ring is arranged as a seal.
• a disadvantage of the known adapter which has proven itself in principle, is that the O-rings or ring seals must be mounted separately. In this case, at least at the user, incorrect seals used or even one of the seals are omitted.
• an adapter for mounting a filter element on a liquid outlet connection is known.
• the adapter has on its the inner wall of the liquid outlet nozzle facing a circumferential groove with a seal arranged in it for fluid-tight separation of the outer shell of the filter surrounding Unfiltratraumes from the medium to be filtered after filtration in a
• the seal has at least at one of the base surface of the groove bounding side wall at a distance.
• Filter element is pressed against the liquid discharge nozzle and an adjacent boundary surface of the groove, so that a seal is ensured here despite a low or even non-existent elastic bias of the sealing ring or seal.
• a ring filter insert in which a front side of a filter material body covering the end disc consists of a perforated disc and a collar formed thereon in one piece.
• the collar has an axial support surface and a radial support surface.
• a radial seal with pockets for heat energy removal can be applied in a two-component process or by injection molding on these support surfaces. This radial seal is limited only at the bottom of the axial support surface and laterally from the radial support surface while it is open in Filtratab Weg puzzle.
• the radial seal is formed on the collar of the end plate, ie on the inner circumference of the adapter.
• the radial seal is on the one hand through the hollow bags only relatively expensive to produce and on the other defects of the radial seal in the production are difficult to see visually, especially if the material webs or the bottom of the hollow pockets breaks and there subsequently leaks occur.
• EP 1 156 538 B1 discloses a plug arrangement for gas-tight sealing of a cell opening of a rechargeable battery.
• a closure plug on its periphery a groove with a molded round seal.
• the round seal was molded in a two-component injection molding process. The groove is completely filled by the round seal.
• a receiving part for a plug which has an injected circumferential groove in an injected seal. Again, the groove is completely filled with the sealing material.
• a particular disadvantage is that the tolerances between adapter and receiving opening must be changed in order to create space for the volume deformation.
• a device with a housing having at least two individual parts known using elastic sealing material are liquid-tightly interconnected. At least one of the individual parts has two material components, one of which is the sealing material and forms a seal, wherein at most one of the two material components is connected as a preform or insert in an injection mold with the sealing material by injection, or both components in a two-component injection mold, So an injection mold with two cavities, are sprayed together.
• Object of the present invention is therefore to improve the known adapter for fixing a filter element in a cylindrical receiving opening of a bottom part so that can be dispensed with a separate mounting of the seal. Furthermore, a change in the tolerances between the adapter and receiving opening should be avoided as possible to allow both the use of new adapters and also known adapter in existing receiving openings.
• the object is achieved in conjunction with the preamble of claim 1, characterized in that the seal is connected to a base surface of the circumferential groove by gating and that the seal to at least one of the base surface defining side wall of the groove has a distance.
• the seal is molded onto a base surface of the circumferential groove, can be dispensed with a separate assembly. At the same time, it is ensured that the correct sealing ring released by the manufacturer from the material provided is arranged in the groove of the adapter. Due to the distance of the seal to at least one Base surface limiting side wall of the groove creates a space for receiving the deformation volume of the seal when used in the cylindrical receiving opening of the bottom part. A change in the tolerances between the cylindrical receiving opening and the outer shape of the adapter can thus be omitted. This means that both new filter elements with the inventive adapter and old filter elements with a known adapter in existing cylindrical openings of known Filtergehausen or their bottom plates can be used.
• the seal is arranged centrally in the groove and has a distance to both, the base surface of the groove bounding side walls. This is relatively easy, especially when molding a seal in a single groove.
• a second seal is molded in a second circumferential groove on the base surface. The first and the second seal are injection-molded in mutually parallel grooves on their base surfaces, wherein the seals abut the two mutually facing inner side walls of the grooves without a gap. During spraying, the distances are filled by appropriate tool inserts.
• the two seals via at least one, preferably three or four, extending in the axial direction (s) web or webs together.
• the two interconnected seals form a particularly dense Barrier between the unfiltrate and the filtrate of a filter element with adapter having Filtergehauses.
• a third seal in a circumferential groove in the region of an end cap of the filter element is molded onto the base surface of the groove. Due to the arrangement of the third seal in the region of the adapter adjacent end cap of the filter element, the filter element including the end cap in a corresponding receiving opening of the
• the seals are formed of a thermoplastic elastomer, a thermoplastic urethane or silicone.
• the adapter has a main body with an overmolded reinforcing ring.
• the adapter is preferably welded to an end cap of the filter element. But it can also be formed directly on the end cap.
• FIG. 1 shows a side view of an adapter with two parallel seals in section
• FIG. 2 a side view of the adapter of FIG. 1,
• Figure 3 a side view of a filter element
• End cap and adapter and dashed lines indicated bottom plate of a filter housing
• Figure 4 is a side view of another filter element with a third seal in a groove of the end cap of the filter element.
• An adapter 1 consists essentially of a main body 2, a circumferential groove 3 and a seal 4th
• a circumferential second groove 5 is arranged parallel to the circumferential first groove 3.
• the circumferential grooves 3, 5 each have a base surface 6, wherein in the first circumferential groove, the seal 4 and in the second circumferential groove, a second seal 7 is injection molded respectively to the base surface 6.
• the seals 4, 7 rest with their inner side surfaces 8, 9 on the adjacent inner side walls 10, 11 of the grooves 3, 5 without spacing or are connected by injection molding with the side walls 10, 11.
• the inner side surfaces 8, 9 of the seals 4, 7 facing away from the outer side surfaces 14, 15 each one Distance 16, 17 on, the space for holding a
• Adapter 1 forms.
• the seals 4, 7 are connected to each other via webs 20.
• One of the webs 20 can be used as the injection point 21. But it can also be an additional bridge 22 with a
• Injection point 23 may be provided.
• the adapter 1 is in a lower position
• the adapter 1 ' can also be formed according to the exemplary embodiment of Figure 4 to the lower end cap 24' of a filter element 25 '.
• the lower end cap 24 has on its circumference a circumferential third groove 26, on the base surface 27 of which a third seal 28 is injection-molded in the middle in such a way that its side faces 29, 30 are each at a distance 31 from the side walls 32, 33 of the third groove 26 has.
• a not further shown tool for producing an adapter 1, 1 ' consists for example of two cavities in a fixed tool half and a rotatable tool plate on a movable diarrheahalfte. After each injection the tool opens and the rotatable tool plate transports it in the first cavity manufactured plastic part in front of the second cavity.
• the tool may also be formed of three or more cavities in the fixed tool half and a rotatable tool plate on the movable tool half. After each injection process, the tool opens and the rotatable tool plate transports the plastic part made in the first cavity in front of the second cavity, and the plastic part made in the second cavity 2 before the third cavity.
• the seals 4, 7, 28 are convex to the base surface 6, 27 facing away from the side. In principle, however, they can also have other shapes.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Moulds For Moulding Plastics Or The Like (AREA)
• Separation Using Semi-Permeable Membranes (AREA)
• Injection Moulding Of Plastics Or The Like (AREA)
• Filtration Of Liquid (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (2)

Family

ID=41060991

Family Applications (1)

Country Status (6)

Cited By (1)

Families Citing this family (10)

Family Cites Families (15)

• 2008
  • 2008-07-03 DE DE102008031170A patent/DE102008031170B4/de not_active Expired - Fee Related
• 2009
  • 2009-05-27 WO PCT/EP2009/003759 patent/WO2010000356A2/de not_active Ceased
  • 2009-05-27 US US12/999,361 patent/US8177972B2/en active Active
  • 2009-05-27 CN CN200980125431.8A patent/CN102076395B/zh active Active
  • 2009-05-27 EP EP09772056.9A patent/EP2296776B1/de active Active
  • 2009-05-27 JP JP2011515142A patent/JP5275459B2/ja not_active Expired - Fee Related
  • 2009-06-19 DE DE202009008466U patent/DE202009008466U1/de not_active Expired - Lifetime

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