WO2017036859A1 - Filtre à fluide doté d'un ensemble soupape - Google Patents

Filtre à fluide doté d'un ensemble soupape Download PDF

Info

Publication number
WO2017036859A1
WO2017036859A1 PCT/EP2016/069900 EP2016069900W WO2017036859A1 WO 2017036859 A1 WO2017036859 A1 WO 2017036859A1 EP 2016069900 W EP2016069900 W EP 2016069900W WO 2017036859 A1 WO2017036859 A1 WO 2017036859A1
Authority
WO
WIPO (PCT)
Prior art keywords
standpipe
fluid filter
valve plate
valve
fluid
Prior art date
Application number
PCT/EP2016/069900
Other languages
German (de)
English (en)
Inventor
Wilhelm Ardes
Original Assignee
Hengst Se & 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 & Co. Kg filed Critical Hengst Se & Co. Kg
Publication of WO2017036859A1 publication Critical patent/WO2017036859A1/fr

Links

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
    • 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
    • B01D35/147—Bypass or safety 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
    • B01D35/14—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
    • 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
    • B01D2201/31—Other construction details
    • B01D2201/316—Standpipes

Definitions

  • the invention relates to a fluid filter having a housing with a fluid inlet and a fluid outlet, with a central outlet tube forming the fluid outlet, with a filter insert plugged onto the standpipe and with a valve unit, wherein the fluid filter seals against a connection flange with a threaded connection and with a valve of which radially separate sealing surface is attachable.
  • a fluid filter of the aforementioned type is known from WO 2015/036 107 A1.
  • different standpipes in particular standpipes of different lengths, have to be manufactured and installed in this fluid filter for different connection flanges, which means a high manufacturing outlay.
  • the task is to simplify the manufacture of the fluid filter.
  • valve unit has a circular disc-shaped valve plate in its basic form with at least one decentralized valve opening and that the valve plate is slidably disposed on the outer circumference of the standpipe in its axial direction ,
  • the invention advantageously provides a fluid filter which is suitable for different connection flanges in which the axial distance between the threaded connection for the standpipe and the sealing surface is different. It is advantageous to use the same standpipe. Thus, a cost-effective universal solution is achieved, which saves considerable production costs.
  • the invention provides for the fluid filter that the standpipe in height of the valve plate on its outer circumference has a circumferential, cylindrical sealing surface with a predetermined axial length and that the sealing surface radially sealingly cooperates with a seal or sealing contour on a radially inner circumference of the valve plate. In this way it is ensured that the valve plate is always reliably sealed in different axial positions on the standpipe against the standpipe.
  • the invention proposes that the valve plate has a peripheral abutment flange on its outer circumference and that the abutment flange when attaching the fluid filter to the connection flange, the valve plate relative to the standpipe axially positioning can be applied to the connection flange.
  • the correct axial positioning of the valve plate relative to the standpipe hereby takes place automatically when mounting the fluid filter to the connection flange, which avoids mounting errors.
  • the cooperating with the standpipe seal or sealing contour is formed by an attached to the valve plate or molded circumferential sealing lip to keep the production of the valve plate simple and inexpensive.
  • the standpipe In order to connect the standpipe securely and with a precisely defined position relative to the connection flange with its threaded connection, it is provided that the standpipe at its connection flange end portion a screw thread for screwing to the threaded connection in the connection flange and the axially inner end of the screw thread a Einschraubweg in Having the threaded connection limiting axial bearing collar.
  • the central standpipe is designed at its connection flange remote end portion with a further screw that the housing is a screw housing with a central inner, the other screw thread on the standpipe mating thread and that the further screw thread of the standpipe and the Counter thread of the housing each have such a large axial length, that even with only a partial thread overlap in the endverschraubten each other end the necessary bolting strength and safety is given.
  • Different axial distances between the threaded connection for the standpipe in the connection flange and the sealing surface of the connection flange are thus compensated within the screw connection between the standpipe and the housing.
  • the greater differences can be compensated, depending
  • the axial lengths of the co-operating threads are at the connection flange-end area of the standpipe and on the housing. In practice, distance differences of a few millimeters or more could be bridged.
  • FIG. 1 shows a fluid filter in its attached to a first connection flange state, in longitudinal section
  • FIG. 2 shows the fluid filter from FIG. 1 in a state attached to a second, second connecting flange, different from the first connecting flange, in longitudinal section,
  • FIG. 3 shows the detail X of the fluid filter from FIG. 2, in an enlarged view
  • FIG. 4 shows the detail Y of the fluid filter from FIG. 2, in an enlarged view
  • FIG. 5 shows an enlarged detail of the detail of the fluid filter from FIG. 1, corresponding to detail X, and FIG
  • FIG. 6 shows a detail corresponding to the detail Y of the fluid filter from FIG. 1, in an enlarged view.
  • FIG. 1 of the drawing shows a longitudinal section of a fluid filter 1 in its state attached to a first connecting flange 6, for example on an internal combustion engine.
  • the fluid filter 1 has as essential parts a cup-shaped, downwardly open housing 2, a central standpipe 4, a filter cartridge 3 and a valve unit fifth
  • a thread 23 designed as an internal thread is centrally arranged, which is screwed into the upper end region 41 of the standpipe 4 with a thread 43 designed as an external thread.
  • a thread 43 designed as an external thread is formed at the upper end face of the standpipe 4.
  • a screwing tool can be used to screw the standpipe 4 sufficiently firmly with the threaded connection 64 in the connection flange before the housing 2 is screwed to the standpipe.
  • the standpipe 4 has a further, executed as an external thread thread 44, which is screwed into a threaded connection 64 of the connecting flange 6.
  • the depth of engagement of this threaded connection is limited and fixed by a resting on an end face 65 of the threaded connection 64 bearing collar 44 'on the outer circumference of the standpipe.
  • the valve unit 5 which comprises a filter bypass valve 5 'and a non-return valve 5 ", is arranged below the filter insert 3.
  • the supporting part of the valve unit 5 forms a circular disk-shaped valve plate 50 which is seated on the standpipe 4 and has a seal or sealing contour 52 radially inwardly. which cooperates sealingly with a cylindrical sealing surface 40 'on the outer circumference of the standpipe 4.
  • the valve plate 50 is axially displaceable relative to the standpipe 4 while maintaining the mutual seal.
  • Radially outwardly, the valve plate 50 has a contact flange 58 which is shown in FIG.
  • a circumferential, annular seal 20 Radially outwardly from the abutment flange 58 is a circumferential, annular seal 20 between the housing 2 and the sealing surface 60 to seal the housing 2 against the sealing surface 60 ,
  • the valve plate 50 extend radially inward first valve openings 51 'of the filter bypass valve 5' and radially outside second valve openings 51 "of the return check valve 5".
  • the fluid inlet 21 of the fluid filter 1 also extends through the second valve openings 51 "A fluid outlet 22 extends through the hollow interior of the central standpipe 4, which is provided with filtered fluid passage openings 48, 49 in its area 40.
  • the filter bypass valve 5 ' has a valve body 55, which is arranged above the first valve openings 51' and which is guided axially displaceably on the standpipe 4.
  • valve body 55 By means disposed above the valve body 55, also guided on the standpipe 4 valve spring 57, the valve body 55 in the valve closing direction of the filter bypass valve 5 'is biased.
  • the valve spring 57 At its upper end, the valve spring 57 is supported on a valve spring support 56, which in turn is mounted immovably on the standpipe 4 in the axial direction.
  • the return check valve 5 has a flexible valve membrane 53, on the upper side of which a spring washer 54 with resilient tongues is arranged The spring washer 54 is pressed against the valve membrane 53 and the valve plate 50 by means of an annular pressure contour 35 arranged at the lower end disk 32 of the filter element 3.
  • connection flange 6 In the case of the first connection flange 6 shown in FIG. 1, the axial distance between the end face 65 of the threaded connection 64 and the sealing surface 60 of the connection flange 6 has a dimension si, which is drawn on the right in the connection flange 6.
  • FIG. 2 shows the fluid filter 1 from FIG. 1 in a state attached to a second, second connection flange 6 'different from the first connection flange 6, in longitudinal section.
  • the difference between the two connecting flanges 6, 6 ' is that in the connecting flange 6', the axial distance between the end face 65 of the threaded connection 64 and the sealing surface 60 of the connection flange 6 'has a larger dimension S2, which is also shown here right in the connection flange 6'.
  • the standpipe 4 is again screwed with its thread 44 in the lower end portion 42 in the threaded connection 64 of the connecting flange 6 'to the abutment of the bearing collar 44' to the end face 65 of the threaded connection 64.
  • valve plate 50 of the valve unit 5 also seals here with its radially inner seal or sealing contour 52 against the sealing surface 40 'of the standpipe, wherein only the valve plate 50 is now in a slightly higher position than in the example of Figure 1 relative to the standpipe 4.
  • the same fluid filter 1 can always be used with always the same standpipe 4 for differently shaped connection flanges 6, 6 '.
  • Figure 3 shows the detail X of the fluid filter 1 of Figure 2, in an enlarged view.
  • a part of the upper end region 41 of the standpipe 4 with the screw thread 43 is visible.
  • Figure 4 shows the detail Y of the fluid filter 1 of Figure 2, in an enlarged view.
  • a part of the central standpipe 4 with its lower end region 42 and the thread 44 arranged there is visible.
  • the thread 44 is in engagement with the threaded connection 64 of the connecting flange 6 '.
  • the bearing collar 44 'of the standpipe 4 is in contact with the end face 65 of the threaded connection 64th
  • At the top left in Figure 4 is a part of the valve unit 5 with the valve plate 50 and the radially inner seal or sealing contour 52, which cooperates sealingly with the sealing surface 40 'of the standpipe 4, visible.
  • the seal or sealing contour 52 of the valve plate 50 cooperates with the axially upper region of the sealing surface 40' of the standpipe 4.
  • FIG. 5 shows a detailed detail X of the fluid filter from FIG. 1, in an enlarged view.
  • a part of the upper end region 41 of the standpipe 4 with the screw thread 43 is visible.
  • a part of the housing 2 with its thread 23 is visible, which is screwed here with the thread 43 in approximately complete thread overlap according to FIG.
  • FIG. 6 shows a detail corresponding to detail Y of the fluid filter from FIG. 1, in an enlarged view.
  • a part of the central standpipe 4 with its lower end region 42 and the thread 44 arranged there is visible.
  • the thread 44 is in engagement with the threaded connection 64 of the connecting flange 6.
  • the bearing collar 44 'of the standpipe 4 is again in abutment against the end face 65 of the threaded connection 64th
  • valve unit 5 At the top left in Figure 4 is a part of the valve unit 5 with the valve plate 50 and the radially inner seal or sealing contour 52, which cooperates sealingly with the sealing surface 40 'of the standpipe 4, visible.
  • seal or sealing contour 52 of the valve plate 50 cooperates with the axially lower region of the sealing surface 40 'of the standpipe 4.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Filtration Of Liquid (AREA)

Abstract

L'invention concerne un filtre à fluide (1) comprenant un boîtier (2) qui présente une entrée de fluide (12) et une sortie de fluide (22), un tube vertical central, qui forme la sortie de fluide (22), une cartouche filtrante (3) emmanchée sur le tube vertical (4), et un ensemble soupape (5), ledit filtre à fluide (1) pouvant se monter de manière étanche sur une bride de raccordement (6) pourvue d'un raccord fileté (64) et d'une surface d'étanchéité (60) séparée radialement dudit raccord fileté. Le filtre à fluide (1) selon l'invention est caractérisé en ce que l'ensemble soupape (5) comprend un siège de soupape (50) présentant une forme générale de rondelle annulaire, pourvue d'au moins une ouverture de soupape (51' 51'') excentrée, et en ce que le siège de soupape (50) est monté de manière étanche à coulissement sur le pourtour extérieur du tube vertical (4).
PCT/EP2016/069900 2015-08-28 2016-08-23 Filtre à fluide doté d'un ensemble soupape WO2017036859A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015114321.6 2015-08-28
DE102015114321.6A DE102015114321A1 (de) 2015-08-28 2015-08-28 Fluidfilter mit einer Ventileinheit

Publications (1)

Publication Number Publication Date
WO2017036859A1 true WO2017036859A1 (fr) 2017-03-09

Family

ID=56958869

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/069900 WO2017036859A1 (fr) 2015-08-28 2016-08-23 Filtre à fluide doté d'un ensemble soupape

Country Status (2)

Country Link
DE (1) DE102015114321A1 (fr)
WO (1) WO2017036859A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4139680A1 (de) * 1991-12-02 1993-06-03 Porsche Ag Schmieroelfilteranordnung fuer eine brennkraftmaschine
DE4310492A1 (de) * 1993-03-31 1994-10-06 Hydac Filtertechnik Gmbh Filtervorrichtung mit Keyportanschluß
EP0773054A1 (fr) * 1995-11-10 1997-05-14 KINGDRAGON S.p.A. Filtre à huile à longue durée de vie pour des moteurs à combustion interne
WO2015036107A1 (fr) 2013-09-10 2015-03-19 Hengst Se & Co. Kg Filtre pourvu d'un clapet de dérivation de filtre et élément filtrant destiné au filtre

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE509996C2 (sv) * 1998-03-04 1999-03-29 Purolator Products Co Anordning vid ett oljefilter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4139680A1 (de) * 1991-12-02 1993-06-03 Porsche Ag Schmieroelfilteranordnung fuer eine brennkraftmaschine
DE4310492A1 (de) * 1993-03-31 1994-10-06 Hydac Filtertechnik Gmbh Filtervorrichtung mit Keyportanschluß
EP0773054A1 (fr) * 1995-11-10 1997-05-14 KINGDRAGON S.p.A. Filtre à huile à longue durée de vie pour des moteurs à combustion interne
WO2015036107A1 (fr) 2013-09-10 2015-03-19 Hengst Se & Co. Kg Filtre pourvu d'un clapet de dérivation de filtre et élément filtrant destiné au filtre

Also Published As

Publication number Publication date
DE102015114321A1 (de) 2017-03-02

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