CA2221300A1 - Filter arrangement - Google Patents

Filter arrangement Download PDF

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Publication number
CA2221300A1
CA2221300A1 CA002221300A CA2221300A CA2221300A1 CA 2221300 A1 CA2221300 A1 CA 2221300A1 CA 002221300 A CA002221300 A CA 002221300A CA 2221300 A CA2221300 A CA 2221300A CA 2221300 A1 CA2221300 A1 CA 2221300A1
Authority
CA
Canada
Prior art keywords
filter
housing
filter element
housing parts
screen material
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.)
Abandoned
Application number
CA002221300A
Other languages
French (fr)
Inventor
Volker Ernst
Rudi Hainle
Arthur Klotz
Rudolf Leipelt
Herbert Jainek
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.)
Mann and Hummel GmbH
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7762091&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2221300(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2221300A1 publication Critical patent/CA2221300A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B01D35/027—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs
    • B01D35/0273—Filtering elements with a horizontal or inclined rotation or symmetry axis submerged in tanks or reservoirs
    • 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
    • B01D29/01—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 flat filtering elements
    • B01D29/012—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
    • B01D29/01—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 flat filtering elements
    • B01D29/05—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 flat filtering elements supported
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30221—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being point-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3034—Particular design of joint configurations the joint involving an anchoring effect making use of additional elements, e.g. meshes
    • B29C66/30341—Particular design of joint configurations the joint involving an anchoring effect making use of additional elements, e.g. meshes non-integral with the parts to be joined, e.g. making use of extra elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/541—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles a substantially flat extra element being placed between and clamped by the joined hollow-preforms
    • B29C66/5416—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles a substantially flat extra element being placed between and clamped by the joined hollow-preforms said substantially flat extra element being perforated, e.g. a screen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/14—Filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Filtration Of Liquid (AREA)

Abstract

A filter arrangement has a two-piece filter housing that contains a filter element (5) through which flows the medium to be filtered. In the plane of a joining surface (9), the filter element (5) has approximately the same contour as the filter housing. A clamping device for the filter element is arranged in the area of the joining surface (9). The clamping device has studs (11) distributed at predetermined distances from each other around the whole joining surface (9). The studs (11) firmly retain a disk made of non-woven fabric panel that acts as a filter element when the two parts (2, 3) of the housing are assembled. Central ribs (6) provided with such studs, for example conical or pyramid-shaped studs, may also be arranged inside the filter housing. In another embodiment, the filter element (5) is a fabric screen which may be secured for example by ultrasonic welding between the two parts (2, 3) of the housing, and which may also be fixed in the housing by a supporting body (25).

Description

Filter Arrangement The invention relates to a filter arrangement with a two part filter housing in accordance with the preamble of the main claim.

State of the Art In E-0 396 385 A2 a filter arrangement of the above-described kind is disclosed, in which two housing parts of plastic material are bonded together by means of a friction or vibration welding method, and thereby enclose a filter element. This filter element is gripped between the two housing parts by a circumferential mounting edge.
It can occur that, due to varying thickness of the filter element at some points, the housing parts fail to become securely fastened together or the filter element is not securely mounted. If the filter element is too thick at some points, the welded seam between the housing parts may also break apart.
Also, a filter arrangement is disclosed in U.S. Patent No. 4,828,694 in which a two part filter housing likewise has in its interior a filter element through whose walls a fluid to be filtered flows in such a way that the undesired residues remain in the filter element. The inlet for the fluid is situated in the bottom part and leads directly into the interior of the hollow filter element.

The filter element in this case is gripped only partially between the housing parts; in the outlet area the filter element disclosed in this last-named publication is not situated near the seams. To assure the hollow shape and a stable location inside of the filter system, a relatively complicated grid-like mounting is disposed within the hollow filter element and is fastened to the bottom part of the housing.

Object It is the object of the invention to improve a filter arrangement of the kind referred to above such that a filter element can be securely integrated into the filter housing in a simple manner.

Advantages of the Invention Setting out from this general type (of filter), the filter arrangement according to the invention is advantageously suited to achieve the stated object with the characterizing features of the main claim. It is especially advantageous that, due to the forming of studs at the contact surfaces of the two housing parts in accordance with the invention, a simple manufacturing process is assured, and a secure installation of a filter element of relatively simple form is made possible. For this purpose the filter element, prior to its attachment to one of the housing parts, is provided with the necessary contours by a simple stamping apparatus, and upon assembly it is held by the studs according to the invention. In the assembled state, the medium to be filtered flows through the filter element in the entire area of the filter housing.

The contact surfaces at which the two housing parts are securely joined together, are situated preferably outside at the seam area, so that a good seal of the filter housing can also be achieved. By appropriately dimensioning the contact surfaces, making allowance for the possibility that a defect might be caused by the assembly process, it can be brought about that, after assembly, a sufficient contact pressure will hold the nonwoven sheet over the studs. The studs are advantageously arranged at an appropriate spacing, which is not too close, so that no excessive surface pressure will occur.

The mounting of the nonwoven sheet is especially advantageous if according to dependent claim 3, intermediate ribs are formed on both housing parts, which on the one hand will promote the flow and distribution of the medium in the housing, and on the other hand will improve the grip on the filter element.

Advantageously, the prefabricated housing parts comprised of plastic material are joined together by a vibratory or ultrasound welding method, in which case precise positioning and in some cases an additional welding of the nonwoven sheet to the housing parts and/or the intermediate ribs can be performed. Known nonwoven webs used in the motor vehicle industry, are preferably used as the material for the filter element.

In another embodiment of the filter arrangement according to the invention, having the features of claim 9, a web of screen material is advantageously clamped between the housing parts, the screen material being able to be cut out of a larger area of screen material and surface clamped by the assembly of the housing parts. In accordance with a manufacturing method of the invention, recited in claim 14, the manufacture of the filter arrangement can be simply integrated into a conveyor belt assembly in which the screen material is punched out of a band, for example during ultrasound welding of the two housing parts at the contact surfaces.

Drawing Illustrative embodiments of the filter arrangement of the invention will be explained with reference to the drawing, in which:
Figure 1 shows a longitudinal section through a filter arrangement for the transmission oil of a motor vehicle;
Figure 2 shows a plan view of the bottom housing part with intermediate ribs and inlet;
Figure 3 shows a first detail view of a section of the seam area between the two housing parts, as well as the intermediate ribs with studs for mounting the filter element;
Figure 4 shows another illustrative embodiment with a modified seam area;
Figure 5 shows a section through a further illustrative embodiment with a screen material as the filter element;
Figure 6 shows a view of the bottom housing part according to Figure 5;
Figure 7 shows a detail illustration of a section of the seam area between the two housing parts of Figure 6, and Figure 8 shows a section through an illustrative embodiment with a support body for the filter element.

Description of the Illustrative Embodiments In Figure 1 there is shown a section through a filter arrangement 1 with a top housing part 2 and a bottom housing part 3. Between the two housing parts 2 and 3 a nonwoven sheet 5 is held as a filter element which is clamped between the two housing parts, as will be explained below with reference to Figures 3 to 6. In Figure 1, intermediate ribs 6 are indicated and an outlet 7, as well as an inlet 8 (suction port), for the medium to be filtered are shown.

An explanation of the manner of operation will be given with reference to Figures 1 and 2. In Figure 2 as viewed from the bottom, an inlet 8 for the medium to be filtered is seen, through which, for example, a transmission oil for the transmission of a motor vehicle flows to be filtered into the bottom housing part 3 and along the intermediate ribs 6.
In the inlet 8 an additional supplemental coarse filter, e.g., a metal or plastic strainer, not shown here, can be arranged. Since the nonwoven sheet 5 is held securely and sealingly at the seam areas 9 between the two housing parts 2 and 3 and optionally also at the intermediate ribs 6, the transmission oil which is to be filtered must pass through the nonwoven sheet 5 in order to reach the outlet 7 on the upper housing part 2. The transmission oil is, as a rule, forced with a certain pressure through the filter arrangement 1.

On the seam area 9 there is a contact surface 10 (see upper cutaway in Figure 2) at which the housing parts are joined/welded together, and studs 11 are arranged so that the filter element is tightly clamped by them. Figure 3 shows a first embodiment of the configuration of the seam area 9 in which prefabricated plastic parts which serve as housing parts 2 and 3, are provided with a contact surface 10 for securely joining the two parts together and conical studs 11 for gripping the nonwoven sheet 5. The studs 11 penetrate through the nonwoven sheet 5 both at the seam 9 at the margin, and at the intermediate ribs 6 and compress the nonwoven disk 5 by an amount a. The conical studs 11 can be disposed either on the upper part 2 (as shown) or on the bottom part 3.

Another configuration of the contact surface 10 is to be seen in Figure 4, in which the positioning of the housing parts 2 and 3 is accomplished by an additional cone-shaped stud 13. This manner of configuring the contact surface 10 is especially suited for joining the housing parts 2 and 3 and the nonwoven sheet 5 by means of an ultrasound welding process. The remaining features of this illustrative embodiment correspond to those of the previously described example.

A further illustrative embodiment of the filter element 5 is, according to Figure 5, a screen material which here can be seen as a considerably thinner layer between the chambers of housing parts 2 and 3. Figure 6 serves to show the seam area 9, which here is smooth and which is suitable for fastening the housing parts 2 and 3 and the screen material 5.

Figure 7 shows an illustrative embodiment of the configuration of the seam area 9, in which prefabricated plastic parts which serve as the housing parts 2 and 3 are provided with a contact surface 10 and optionally supplemental welding studs 20. A clamping means 21 with a blunt edge projects past the contact surface 10 such that, when the housing parts 2 and 3 are assembled, the screen material 5 is tightly stretched. The screen cloth 5 is thereby held both at the contact area 10 at the periphery and at the intermediate ribs 6. In the subsequent welding of the housing parts 2 and 3 at the contact area 10, the screen material 5 is by the effect of the heat more or less stamped out from web of material inserted there during production.

The sectional view in Figure 8 shows a filter element in which a screen material 5 is provided with a support body 25. The clamping of this screen material at the seam areas 9 takes place as described in the preceding examples. For optimum support of the filter element, the support body 25 has projections 26 which thus fix the location of the screen material 5 in the housing 1 of the filter arrangement. In order to manufacture this embodiment of the filter element, the screen material 5 is pulled into an injection molding tool and thereafter the supports 25 with the projections 26 are molded onto one side of the screen material 5.

Claims (17)

Claims
1) Filter arrangement with - a two part filter housing, wherein in a first part (3) an opening is present for the inlet (8), and in another part an opening is present for the outlet (7) of the medium to be filtered, and with - a filter element (5) through which the medium to be filtered flows in the filter housing and which has approximately the contour of the filter housing in the plane of a seam surface (9), and wherein in the vicinity of the seam area (9) a clamping means for the filter element is provided, characterized in that - the clamping means consists of studs (11) distributed at predetermined intervals over the entire seam area (9) of at least one housing part (2, 3), which securely clamp the filter element (5) when the housing parts (2, 3) are assembled.
2) Filter arrangement according to claim 1, characterized in that - the studs (11) extend so far into the interior of the housing parts (2, 3) that, after the contact surfaces (10) are brought together, the filter element (5) is compressed by a given amount in the area of the studs (11).
3) Filter arrangement according to one of claims 1 or 2, characterized in that - both housing parts (2, 3) have intermediate ribs (6) in prescribed areas, which extend so far into the interior that, after the two housing parts (2, 3) have been brought together, the filter element (5) is additionally gripped there.
4) Filter arrangement according to claim 3, characterized in that - the studs (11) are also disposed on the intermediate ribs (6).
5) Filter arrangement according to one of claims 1 to 4, characterized in that - the studs (11) are rounded off on the side facing the filter element (5).
6) Filter arrangement according to one of claims 1 to 5, characterized in that - the studs (11) on the side facing the filter element (5) are of conical or pyramidal in shape.
7) Filter arrangement according to one of claims 1 to 6, characterized in that - the filter element (5) consists of a nonwoven sheet, and that - the housing parts (2, 3) are of plastic and are welded at their contact surfaces (10) by vibration or ultrasound welding.
8) Filter arrangement according to claim 7, characterized in that - the nonwoven sheet (5) is likewise welded with the housing parts at the studs (11).
9) Filter arrangement with - a two part filter housing, wherein in a first part (3) an opening is present for the inlet (8), and in another part an opening is present for the outlet (7) of the medium to be filtered, and with - a filter element (5) through which the medium to be filtered flows in the filter housing and which has approximately the contour of the filter housing in the plane of a seam surface (9), and wherein in the vicinity of the seam area (9) a clamping means for the filter element is provided, characterized in that - the seam area (9) of both housing parts (2, 3) consists in each case of a contact surface (10) at which the two housing parts can be joined together, and of laterally inwardly arranged clamping means for the filter element (5), and that - the filter element (5) consists of a screen material which can be severed from a larger sheet of screen material during the assembly of the two housing parts (2, 3).
10) Filter arrangement according to claim 9, characterized in that - the clamping means projects with a blunt surface on one of the housing parts (2, 3) beyond the line of separation of the two housing parts (2, 3) at the seam area (9) to such an extent that the screen material surface is gripped with a predetermined pressure inside of the filter arrangement after assembly.
11) Filter arrangement according to claim 9 or 10, characterized in that - the screen material (5) is also gripped between intermediate ribs (6) in the interior of the filter arrangement.
12) Filter arrangement according to one of claims 9 to 11, characterized in that - the housing parts (2, 3) can be welded ultrasonically through the screen material at the contact surfaces (10), whereby the necessary seal between the chambers of the two housing parts (2, 3) being produced primarily by the uninterrupted weld seam.
13) Filter arrangement according to one of claims 9 to 12, characterized in that - the screen material (5) can be severed from a band form web running between the unassembled housing parts (2, 3), whereby - during the assembly of the housing parts (2, 3) at the weldable contact surfaces (10), the portion of the screen material (5) which remains as the filter element is stamped out.
14) Method of manufacturing a filter arrangement according to one of claims 9 to 13, characterized in that - in a first manufacturing step a band form web consisting of a screen material is drawn over the lower housing part (3), that - in a second manufacturing step the upper housing part (2) is pressed in the seam position onto the web surface, whereby the web while being pressed together is initially held at the contour of the contact surface and stretched in the interior by means of the welding apparatus and that - in a third manufacturing step the housing parts (2, 3) are welded at the contact surfaces (10) and the screen material is cut out at the weld by the effect of the heat.
15) Filter arrangement with - a two part filter housing, wherein in a first part (3) an opening is present for the inlet (8), and in another part an opening is present for the outlet (7) of the medium to be filtered, and with - a filter element (5) through which the medium to be filtered flows in the filter housing and which has approximately the contour of the filter housing in the plane of a seam surface (9), and wherein in the vicinity of the seam area (9) a clamping means for the filter element is provided, characterized in that - the seam area (9) of both housing parts (2, 3) comprises in each case a contact surface (10) at which the two housing parts can be joined together and from which clamping means offset laterally inward for the filter element (5) exist, and that - the filter element consists of a screen material (5) which is provided with a support body (25) which has at least one projection (26) which extends inwardly to at least one part (2, 3) of the filter housing and thus fixes the position of the filter element in the assembled filter housing.
16) Method for manufacturing a filter arrangement according to claim 15, characterized in that - in a first manufacturing step band form web of screen material is drawn into an injection molding tool, that - in a second manufacturing step the support body is injection molded from one side onto the screen material (5) with projections (26), and that - in a third manufacturing step the housing parts (2, 3) are welded at the contact surfaces (10) with the inclusion of the screen material (5).
17) Filter arrangement according to one of claims 1 to 13 or 15, characterized in that - the two housing parts (2, 3) and/or the support body (25) are comprised of glass fiber reinforced polyamide and the screen material preferably is comprised of polyester or polyamide.
CA002221300A 1995-05-17 1996-05-09 Filter arrangement Abandoned CA2221300A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19518014A DE19518014A1 (en) 1995-05-17 1995-05-17 Filter arrangement
DE19518014.3 1995-05-17

Publications (1)

Publication Number Publication Date
CA2221300A1 true CA2221300A1 (en) 1996-11-21

Family

ID=7762091

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002221300A Abandoned CA2221300A1 (en) 1995-05-17 1996-05-09 Filter arrangement

Country Status (4)

Country Link
JP (1) JPH11505470A (en)
CA (1) CA2221300A1 (en)
DE (3) DE19518014A1 (en)
WO (1) WO1996036414A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19731766B4 (en) * 1997-07-24 2007-07-12 Mahle Filtersysteme Gmbh Flat plate filter made of zig-zag folded filter web material and flat filter housing with such a plate filter
DE10358470A1 (en) * 2003-12-13 2005-07-14 Ibs Brocke Gmbh & Co. Kg Filter system for filtering engine oil comprises channel system formed partially in filter medium
JP4610260B2 (en) * 2004-08-24 2011-01-12 トヨタ紡織株式会社 Strainer for automatic transmission
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DE19680345D2 (en) 1998-04-02
MX9708771A (en) 1998-03-31
WO1996036414A1 (en) 1996-11-21
DE19680345C1 (en) 2003-06-05
DE19518014A1 (en) 1996-11-21
JPH11505470A (en) 1999-05-21
DE19680345C5 (en) 2007-06-14

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