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WO2013068339A1 - Dispositif de drainage destiné à un filtre et système de filtre - Google Patents

Dispositif de drainage destiné à un filtre et système de filtre Download PDF

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Publication number
WO2013068339A1
WO2013068339A1 PCT/EP2012/071915 EP2012071915W WO2013068339A1 WO 2013068339 A1 WO2013068339 A1 WO 2013068339A1 EP 2012071915 W EP2012071915 W EP 2012071915W WO 2013068339 A1 WO2013068339 A1 WO 2013068339A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
drainage device
receptacle
liquid
passage
Prior art date
Application number
PCT/EP2012/071915
Other languages
German (de)
English (en)
Inventor
Christian Thalmann
Original Assignee
Mann+Hummel Gmbh
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 Mann+Hummel Gmbh filed Critical Mann+Hummel Gmbh
Priority to DE112012004672.2T priority Critical patent/DE112012004672A5/de
Publication of WO2013068339A1 publication Critical patent/WO2013068339A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/003—Filters in combination with devices for the removal of liquids
    • B01D36/006—Purge means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/003—Filters in combination with devices for the removal of liquids
    • B01D36/005—Liquid level sensing means, e.g. for water in gasoil-filters
    • 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
    • B01D2201/309—Housings with transparent parts

Definitions

  • the present invention relates to a drainage device for a filter, in particular for a fuel filter for a motor vehicle, and a filter assembly with such a filter and such a drainage device.
  • Filters such as liquid filters or fuel filters, often have to fulfill the task of a water separator or water collector in addition to the pure filter function.
  • the filter housing is provided with a drainage device for the discharge of accumulating water. In this case, the higher specific gravity of the water content over the fuel is exploited by the entrained water accumulates in the direction of gravity in a lower portion of the filter housing of the filter and the drainage device to a receiving container, such as a collecting cup, is supplied.
  • WO 2005/079949 A1 describes a filter in which a collecting cup is screwed to the underside of the filter housing by means of a central fastening screw.
  • the filter housing has at its lower end in the direction of gravity on a threaded part with an internal thread for receiving the mounting screw.
  • the threaded portion is formed as a block with a square plan and is located on radially inwardly projecting lugs of a round in cross-section holding element.
  • the holding element has tabs which are bent around the cuboid threaded part and thus fix the threaded portion.
  • the assembly of the round retaining element and the cuboid threaded part is inserted into the lower end of the filter housing and is set in the inserted state for receiving the fastening screw of the collecting cup.
  • the document EP 2 123 340 A1 describes a filter for a motor vehicle with a filter housing and with a drainage device.
  • the drainage device has a collecting cup, a fastening screw for the collecting cup and a threaded part held in the filter housing with an internal thread for receiving the fixing screw.
  • the filter housing has a cup-shaped receptacle for the threaded part with an at least partially circumferential retaining wall.
  • the threaded part is designed as a press-in bush pressed into the receptacle, the circumferential wall of which is provided with an at least partially encircling circumferential compression surface held by the retaining wall.
  • the present invention has the object to provide an improved drainage device. This object is solved by the subject matter of the independent claims.
  • a drainage device for a filter, in particular for a fuel filter, which has a receptacle and a fastening device.
  • the receptacle is adapted to receive from the filter, in particular from the filter housing, draining liquid and store it until disposal.
  • the effluent liquid comprises in particular in the filter separated water.
  • the fastening device is set up for fastening the drainage device to the filter.
  • the fastening device has a passage with an external thread for the outlet of the liquid from the filter into the receptacle. The passage thus allows drainage of the liquid from the filter through the fixture into the receptacle.
  • the fastening device is preferably hollow. Characterized in that the fastening device for forming the passage for the liquid is hollow, a larger cross section than in the conventional drainage channels for the passage is possible.
  • the larger cross section of the passage for the liquid in particular water, has the advantage of improved drainage of the liquid from the filter housing. Furthermore, material is saved in the hollow fastening device over conventional solid threaded pieces.
  • the longitudinal axis of the passage and the longitudinal axis of the fastening device are in particular coaxial with each other or are identical. Due to the centrally located passage for the liquid, the drainage device has a higher mechanical strength than conventional drainage devices. Furthermore, this reduces or avoids the probability of detachment of the drainage device from the filter. Also, the likelihood of leakage is minimized by the central location of the fluid passage.
  • the fastening device in the region of the passage has an internal pressure resistance of at least 4 bar.
  • the passage for the liquid through the fastening device is arranged coaxially with the longitudinal axis of the drainage device.
  • a central central passage for the water from the filter, in particular the filter housing, results in the drainage device.
  • the fastening device has a threaded piece, which is hollow to form the passage for the liquid.
  • the fastening device is in particular made of steel. In this case, preferably stainless steel is used. The use of stainless steel makes the use of biodiesel possible.
  • the drainage device is in particular made of steel, for example stainless steel, at least at the sealing regions. This avoids creeping as in plastic versions.
  • the receptacle is for example at least partially made of plastic.
  • An example of such a plastic is polyamide (PA).
  • PA polyamide
  • the plastic used in particular has a temperature resistance of at least 80 ° C.
  • the hollow threaded piece has an external thread which can be screwed into an internal thread of a threaded counterpart which is attached to the thread. tergetude is arranged. By screwing threaded piece and threaded counterpart, the drainage device is attached to the filter housing.
  • the threaded piece is designed as a hollow screw with an external thread. This is connected to the drainage device, in particular to an upper part of the drainage device, preferably by means of crimping.
  • the threaded piece has at least one longitudinal bore for forming the passage for the liquid.
  • the threaded piece has a single longitudinal bore, which forms the passage for the liquid.
  • the longitudinal bore has in particular an inner diameter of greater than 10 mm, preferably between 1 1 and 17 mm, particularly preferably between 1 1 and 13 mm, in order to allow reliable drainage of the separated water into the drainage device.
  • the threaded piece has a longitudinal bore and at least one transverse bore. By providing the transverse bore, the effluent liquid can get into the receptacle faster.
  • the receptacle is formed as a container with a top and a bottom.
  • the upper part has in particular a convex or conical surface.
  • rainwater can flow in the installed state of the filter.
  • the rainwater does not remain between the filter and the top of the receptacle.
  • a surface of the drainage device opposite the filter bottom is curved so that water can not collect at any point on the surface.
  • Support ribs for supporting the filter housing of the filter with respect to the drainage device are provided in particular on the convex surface of the upper part.
  • the receptacle is designed for example as a transparent water collector or transparent water tank. The transparency of the water level in the receptacle is controlled by a user. Furthermore, the receptacle may also have only a transparent window to control the water level.
  • the receptacle has a discharge device with a discharge opening, which is arranged for discharging the collected liquid from the receptacle.
  • the discharge device in particular has a drain plug for opening and closing the discharge opening.
  • a flat gasket is preferably provided for sealing the discharge device with respect to the receiving container.
  • the receptacle is formed as a container having a top and a bottom, wherein a surface of the top in at least one portion has a raised, for example wedge-shaped or concave support portion, the height of which preferably increases with increasing distance from the attachment direction, wherein the support portion can be applied to a filter housing of the fuel filter and in particular can be supported.
  • a vibration-stable attachment of the Drainagevorrich- device can be realized on a filter without a shape of the drainage device causes the risk of stagnant water from the environment, such as rainwater on the surface, for example on the upper part. Since only sections are provided which rise to the outside, no trough is formed, in which water can collect, nevertheless, vibration resistance is achieved.
  • the support section or the support sections are designed as ribs which extend radially outward from an area adjoining the fastening device, wherein in particular their height increases with increasing distance from the fastening direction.
  • a filter arrangement in particular for the filtration of fuel, with a filter, in particular with a fuel filter, and a drainage predicted above direction.
  • the drainage device with the aid of the fastening device to the filter housing of the filter can be fastened.
  • the external thread of the threaded part of the drainage device is screwed to an internal thread of a threaded counterpart, which is arranged on the filter housing.
  • Any existing support sections of the upper part can be applied to the filter housing and in particular supportable.
  • the filter housing is in particular adapted to receive a filter element for filtering fuel.
  • the threaded counterpart has a knurled edge, which is designed as anti-rotation
  • a seal surrounding the fastening device is provided for radial sealing between the fastening device and the receptacle.
  • the seal is for example an O-ring seal.
  • the radial compression of the seal creates an additional anti-rotation of the drainage device relative to the filter housing.
  • For receiving the O-ring is preferably an axial, cylindrical recess in the region of the fastening device, for example in an upper part of the drainage device, provided which has a circumferential, radial sealing surface to which the O-ring is sealingly applied.
  • This sealing surface is preferably positioned such that, when the drainage device is mounted on the filter housing, it faces a radial sealing surface on the filter housing, so that a sealing ring arranged therebetween enables a radial seal against the environment on both sides.
  • the drainage device is adapted to be attached to conventional filters, in particular standard replaceable filter.
  • the invention further relates to a filter for use in a filter arrangement according to the invention or for use with a drainage device according to the invention, which comprises a cup-shaped filter housing, in particular made of sheet metal, and a filter element arranged in the filter housing, the cup-shaped filter housing having an in particular outwardly arched end surface has, in which centrally the internal thread having a coupling device for coupling the invention is arranged.
  • the internal thread preferably has an inner diameter of equal to or greater than 15 mm, preferably between 16 and 20 mm, to allow a reliable drainage of the separated water into the drainage device.
  • the arched end surface preferably forms a support region surrounding the coupling device radially circumferentially, on which the support section or sections of the upper part of the drainage device can be applied.
  • the coupling device has an annular, radially outwardly directed sealing surface to which a radial seal on the part of the drainage device can be applied sealingly.
  • the sealing surface may preferably be formed by a cylindrical elevation of the filter housing in the axial direction, in which an opening is arranged centrally. In this opening an internal thread insert can be arranged.
  • FIG. 1 shows a schematic longitudinal sectional view of a first embodiment of a drainage device
  • Figure 2 is a schematic perspective view of an upper part of the drainage device of Figure 1;
  • Figure 3 is a schematic perspective view of a lower part of the Drainagevornchtung of Figure 1;
  • Figure 4 is another perspective view of the lower part of the Drainagevornchtung of Figure 1;
  • Figure 5 is a schematic longitudinal sectional view of a second embodiment of a filter assembly with a Drainagevornchtung
  • Figure 6 is a schematic perspective view of an upper part of the Drainagevornchtung of Figure 5.
  • FIG. 7 is a schematic perspective illustration of a lower part of the drainage device of FIG. 5.
  • FIG. 1 shows a schematic longitudinal sectional view of a first embodiment of a drainage device 1.
  • the drainage device 1 of FIG. 1 is coupled to a filter 2.
  • the Drainagevornchtung 1 is attached to the filter 2 by means of matched thread.
  • the filter 2 is, for example, a fuel filter for filtering fuel.
  • the Drainagevornchtung 1 has a receptacle 3 and a fastening device 4.
  • the receptacle 3 is adapted to receive from the filter 2 effluent liquid.
  • the effluent from the filter 2 liquid is in particular substantially water.
  • the fastening device 4 is adapted to fix the drainage device 1 to the filter 2.
  • the fastening device 4 is adapted to fix the drainage device 1 to a filter housing 16 of the filter 2.
  • a filter element 17 is arranged for filtering the fuel.
  • the filter 2 is in particular an exchangeable filter, which can be replaced.
  • the fastening device 4 has a passage 5 with an external thread 21, liquid from the filter 2 being passed through the passage 5 into the receptacle 3. long can.
  • the fastening device 4 is hollow to form the passage 5 for the liquid.
  • the fastening device 4 is equipped with an external thread 21, which can cooperate with a thread of the terminal of the filter 2.
  • the passage 5 for the liquid through the fastening device 4 is preferably arranged coaxially to the longitudinal axis 6 of the drainage device 1.
  • the longitudinal axis 6 of the drainage device 1 and the longitudinal axis 20 of the filter 2 are arranged coaxially with each other.
  • the fastening device 4 has in particular a threaded piece 7, which is hollow for the formation of the passage 5 for the liquid.
  • the threaded piece 7 preferably has the external thread 21, which can be screwed into an internal thread of a threaded counterpart.
  • the threaded counterpart is arranged in particular on the filter housing 16 of the filter 2.
  • the threaded part 7 is formed as a hollow screw with external thread 21.
  • the receptacle 3 is in particular a container with an upper part 10 and a lower part 1 1.
  • the upper part 10 in particular has a convex outer surface 12.
  • the surface 12 is curved so that there is no local minimum in which water, in particular rainwater, could collect.
  • the receiving container 3 has a discharge device 13 in its lower region.
  • the discharge device 13 has a discharge opening 14, which is set up for discharging the collected liquid from the receiving container 3.
  • the discharge port 14 and the fixing device 4 are arranged coaxially.
  • a radially and optionally axially compressed seal 18 is provided for sealing the drainage device 1 relative to the filter housing 16.
  • the particular radially compressed seal 18 is for example an O-ring seal.
  • 2 shows a schematic perspective view of the upper part 10 of the drainage device 1 of Figure 1 is shown.
  • the passage 5 is formed by a single longitudinal bore 8 according to the embodiment of FIG. In the inner region, a type sleeve with passage and external thread can be used or attached.
  • the upper part 10 of Figure 2 On the partially convex surface 12 of the upper part 10 supporting ribs 19 are arranged. Without limiting the generality, the upper part 10 of Figure 2 has three support ribs 19, which are equally distributed in their distance. The support ribs 19 on the convex surface 12 are adapted to support the filter housing 16 of the filter 2 with respect to the drainage device 1.
  • FIG. 3 shows a schematic perspective illustration of the lower part 11 of the drainage device 1.
  • the lower part 1 1 of Figure 3 is screwed to the upper part 10 of Figure 2.
  • the lower part 1 1 forms the essential part of the container of the drainage device 1 and serves to receive fluid / liquid drained out of the filter.
  • the lower part 1 1 is open.
  • the discharge opening 14 is provided in the lower region of the lower part 1 1, the discharge opening 14 is clearly visible in FIG.
  • FIG. 5 shows a schematic longitudinal sectional view of a filter arrangement with a second embodiment of a drainage device 1.
  • the drainage device 1 of FIG. 5 is coupled to a filter 2.
  • the drainage device 1 is screwed to the filter 2.
  • the threads of the fastening device and a thread of a coupling device of the filter are matched to one another.
  • the filter 2 is, for example, a fuel filter for filtering fuel.
  • the drainage device 1 has a receptacle 3 and a fastening device 4.
  • the receptacle 3 is adapted to receive liquid draining from the filter 2, in particular water, which separates in the filter 2.
  • the fastening device 4 is designed to fasten the drainage device 1 to the filter 2.
  • the fastening device 4 is adapted to fasten the drainage device 1 to the filter housing 16 of the filter 2.
  • a filter element 17 is arranged for filtering the fuel.
  • the filter element 17 is in particular an exchangeable filter.
  • the fastening device 4 has a passage 5 with an external thread 21 for discharging the liquid from the filter 2 into the receptacle 3.
  • the fastening device 4 is hollow for the formation of the passage 5 for the liquid.
  • the passage 5 for the liquid through the fastening device 4 is preferably arranged coaxially with the longitudinal axis 6 of the Drainagevornchtung 1.
  • the longitudinal axis 6 of the Drainagevornchtung 1 and the longitudinal axis 20 of the filter 2 to each other.
  • the passage 5 of the Drainagevornchtung 1 of Figure 5 is formed by a longitudinal bore 8 and two transverse bores 9.
  • the fastening device 4 in particular has a threaded piece 7 with the external thread 21, which is hollow to form the passage 5 for the liquid.
  • the external thread 21 of the threaded part 7 can be screwed into an internal thread of a threaded counterpart.
  • the threaded counterpart is in particular arranged as a coupling device on the filter housing 16 of the filter 2.
  • the threaded part 7 is formed as a hollow screw with external thread 21.
  • the receptacle 3 is in particular a container with an upper part 10 and a lower part 1 1.
  • the upper part 10 has a convex surface 12, as has been explained for example with reference to FIG.
  • the receiving container 3 has a discharge device 13 in its lower region.
  • the discharge device 13 has a discharge opening 14, which is set up for discharging the collected liquid from the receiving container 3.
  • a radially and / or axially compressed seal 18 is provided to seal the Drainagevornchtung 1 relative to the filter housing 16.
  • the radially compressed seal 18 is, for example, an O-ring seal.
  • the longitudinal axis of the discharge device 13 of FIG. 5 is not coaxial with the longitudinal axis 6 of the drainage device 1, but is arranged offset relative to one another.
  • the discharge device 13 has a drain plug 15 for opening and closing the discharge opening 14.
  • a flat gasket is provided for sealing the discharge device 13 with respect to the receiving container 3.
  • FIG. 6 shows a schematic perspective view of an upper part 10 of the drainage device 1 of Figure 5.
  • the upper part 10 has a threaded part 7 with the external thread 21st
  • the passage 5 is formed in the embodiment of Figure 6 by a longitudinal bore 8 and two transverse bores 9. Due to the perspective view of Figure 6, only a single transverse bore 9 is visible.
  • On the surface 12 of the upper part 10 eight support ribs 19 are provided. The number eight of the support ribs 19 is purely exemplary.
  • a matching to the upper part 10 of Figure 6 lower part 1 1 is shown in the figure 7.
  • the upper portion of the lower part 1 1, which can be coupled to the upper part 10 of Figure 6, in particular screwed, is open.
  • the discharge device 13 is arranged, which has the discharge opening 14.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

L'invention concerne un dispositif de drainage destiné à un filtre, en particulier à un filtre à carburant, présentant un réservoir de collecte et un dispositif de fixation. Le réservoir de collecte est configuré pour collecter le liquide s'écoulant du filtre. Le dispositif de fixation est configuré pour la fixation du dispositif de drainage sur le filtre. Le dispositif de fixation est muni d'un passage présentant un filetage extérieur pour la sortie du liquide hors du filtre vers le réservoir de collecte.
PCT/EP2012/071915 2011-11-09 2012-11-06 Dispositif de drainage destiné à un filtre et système de filtre WO2013068339A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112012004672.2T DE112012004672A5 (de) 2011-11-09 2012-11-06 Drainagevorrichtung für einen filter und filteranordnung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011117993A DE102011117993A1 (de) 2011-11-09 2011-11-09 Drainagevorrichtung für einen Filter und Filteranordnung
DE102011117993.7 2011-11-09

Publications (1)

Publication Number Publication Date
WO2013068339A1 true WO2013068339A1 (fr) 2013-05-16

Family

ID=47178645

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/071915 WO2013068339A1 (fr) 2011-11-09 2012-11-06 Dispositif de drainage destiné à un filtre et système de filtre

Country Status (2)

Country Link
DE (2) DE102011117993A1 (fr)
WO (1) WO2013068339A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107555671A (zh) * 2017-10-31 2018-01-09 蒙城县弘文信息科技有限公司 一种多层级污水处理装置
CN107850019A (zh) * 2015-08-17 2018-03-27 康明斯过滤Ip公司 用于真空侧和压力侧油水分离器的自动排放系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6565746B1 (en) * 2002-04-30 2003-05-20 Dana Corporation One-piece self-venting drain valve
WO2005079949A1 (fr) 2004-02-17 2005-09-01 Stanadyne Corporation Element d'insertion de vanne de vidange
DE102006024013A1 (de) * 2006-05-23 2007-11-29 Hydac Filtertechnik Gmbh Verfahren und Vorrichtung zum Abscheiden und Abführen von in flüssigen Kraftstoffen enthaltenem Wasser, insbesondere von Wasser aus Dieselöl
EP2123340A1 (fr) 2008-05-16 2009-11-25 Mann+Hummel Gmbh Filtre

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005000658A1 (de) * 2005-01-04 2006-07-13 Robert Bosch Gmbh Kraftstofffilter, insbesondere für Kraftfahrzeuge
EP2126329A1 (fr) * 2007-03-15 2009-12-02 Honeywell International Inc. Soupape de purge auto-ventilée monobloc

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6565746B1 (en) * 2002-04-30 2003-05-20 Dana Corporation One-piece self-venting drain valve
WO2005079949A1 (fr) 2004-02-17 2005-09-01 Stanadyne Corporation Element d'insertion de vanne de vidange
DE102006024013A1 (de) * 2006-05-23 2007-11-29 Hydac Filtertechnik Gmbh Verfahren und Vorrichtung zum Abscheiden und Abführen von in flüssigen Kraftstoffen enthaltenem Wasser, insbesondere von Wasser aus Dieselöl
EP2123340A1 (fr) 2008-05-16 2009-11-25 Mann+Hummel Gmbh Filtre

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107850019A (zh) * 2015-08-17 2018-03-27 康明斯过滤Ip公司 用于真空侧和压力侧油水分离器的自动排放系统
CN107555671A (zh) * 2017-10-31 2018-01-09 蒙城县弘文信息科技有限公司 一种多层级污水处理装置

Also Published As

Publication number Publication date
DE102011117993A1 (de) 2013-05-16
DE112012004672A5 (de) 2014-08-21

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