WO2009149706A2 - Filtre pour fluides de fonctionnement d'un moteur à combustion interne et parties constituant un tel filtre - Google Patents

Filtre pour fluides de fonctionnement d'un moteur à combustion interne et parties constituant un tel filtre Download PDF

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Publication number
WO2009149706A2
WO2009149706A2 PCT/DE2009/075025 DE2009075025W WO2009149706A2 WO 2009149706 A2 WO2009149706 A2 WO 2009149706A2 DE 2009075025 W DE2009075025 W DE 2009075025W WO 2009149706 A2 WO2009149706 A2 WO 2009149706A2
Authority
WO
WIPO (PCT)
Prior art keywords
filter
housing
seal
functional element
closure element
Prior art date
Application number
PCT/DE2009/075025
Other languages
German (de)
English (en)
Other versions
WO2009149706A3 (fr
Inventor
Wilhelm Ardes
Original Assignee
Hengst Gmbh & 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 Gmbh & Co. Kg filed Critical Hengst Gmbh & Co. Kg
Priority to CN200980127322XA priority Critical patent/CN102112194A/zh
Publication of WO2009149706A2 publication Critical patent/WO2009149706A2/fr
Publication of WO2009149706A3 publication Critical patent/WO2009149706A3/fr

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
    • B01D35/14—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
    • 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
    • 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
    • B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—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 multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B01D29/54—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 multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
    • 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
    • B01D35/26—Filters with built-in pumps filters provided with a pump mounted in or on the casing
    • 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
    • B01D2201/304—Seals or gaskets
    • 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

Definitions

  • the invention relates to a filter for operating means of an internal combustion engine, for example an oil filter or a fuel filter.
  • such a filter can be improved to ensure that a functional element provided in the filter is installed in optimally new condition.
  • filter inserts are excluded. be changed.
  • Such filter inserts contain the actual filter element, that is to say a filter surface which can be designed, for example, as a paper fold filter.
  • the ever increasing demands on the quality of the filtered equipment means that the filters used have an increasingly higher filtration fineness.
  • fuel filters are used with a filter fineness of only 2 microns. In such fine filters already abrasion of a packaging box may be undesirably large and clog the filter surface.
  • the functional element which is used in the filter housing, for example, the aforementioned filter insert, a supply line or a drain line for a filtered or already filtered fluid.
  • the filter can advantageously be configured according to a first proposal: In this case, a closure element is provided which is dismantled
  • This closure element is provided on the functional element and movable relative to the rest of the functional element. It is designed such that it is automatically moved during assembly of the functional element, that is moved from its closed position and is moved to a release position in which there is the above-mentioned inflow or outflow line free. This release position assumes the closure element at the latest when the functional element is in its fully assembled state.
  • a stop can advantageously be provided in the housing, so that during the assembly of the functional element, the closure element is guided against this stop. In the further movement of the functional element in the further mon- daily progress is thus automatically enforced the movement of the closure element and the closure element is guided in its release position.
  • the closure element advantageously closes both inlet and outlet lines, so that instead of the arrangement of several closure elements, the number of components advantageously low can be held.
  • the closure element can be configured as a ring, which is displaced in the mounting direction.
  • the ring can be rotated about its axis and has closed peripheral portions and apertured peripheral portions.
  • this rotation of the ring possibly without any additional space required, the movement of the closure element from its closed position are made possible in its release position.
  • the closure element is securely held in its release position.
  • sensitive materials such as the mentioned paper material for a pleated filter element are protected against damage by the potentially freely movable functional element. Therefore, advantageously, a locking of the closure element may be provided by this and the functional element having corresponding locking means.
  • the functional element can be designed, for example, as a filter element or can have a filter element and a drainage line, through which the cleaned fluid, in which - A -
  • this drainage line is closed, so that particles which may be larger than the particles which may be present in the filtered fluid due to the selected filter fineness do not enter the drainage line and thus do not reach the supply points downstream of the filter can.
  • Fig. 2 shows the functional element of Fig. 1 in the assembled state, wherein the filter element receiving the functional element is shown only in sections, and Fig. 3 shows the functional element after its removal from the filter.
  • 1 denotes a functional element as a whole, which is designed as a filter insert and in a conventional manner has an upper end plate 2, which can be clipped by means of locking arms 3 with a lid of a filter housing.
  • the cover is handled together with the functional element 1 and the functional element 1 is first introduced in the axial direction into an approximately cup-shaped housing of the filter. Finally, the thread of the lid against a corresponding thread of the housing, so that then screwed the lid and thereby the functional element is inserted axially over a final distance in the housing.
  • the illustrated functional element 1 has a Faltenfilterele- element 4, which is bounded below by a lower, annular end plate 5. Below the lower end plate 5 further components of the functional element 1 are provided.
  • the pleated filter element 4 as the main filter or fine filter be designed while below the lower end plate 5, for example, a coarse filter or pre-filter can be provided.
  • the functional element 1, which is flowed through radially from the outside to the inside, has a drain line 6 for cleaned fluid, the drain line 6 being guided radially outward below the lower end disk 5.
  • This drain line 6 serves to guide purified fluid to the supply points of an internal combustion engine, for example to an injection system, when the functional element 1 serves as a fuel filter, or to the lubrication points of an engine when the functional element 1 is provided for example for filtering oil.
  • Filter housing occupies a closure element 7 is provided.
  • the closure element 7 is designed as a ring which, when the functional element 1 according to FIG. 1 is in its delivery state, bears seals 8 and 9, from which the lower seal 9 circulates circumferentially around the entire functional element 1.
  • Fig. 2 shows a section of the functional element 1 within a cup-shaped housing 10 in the mounted state:
  • the housing 10 has an obliquely extending stop 1 1, against which the closure element 7 automatically comes when the functional element 1 inserted into the housing 10 in the axial direction becomes.
  • the stop 1 1 automatically causes a relative movement of the closure element 7, by this is moved virtually opposite to the other functional element 1 upwards.
  • the closure element 7 retains its abutment with the stop 1 1, while the rest of the functional element 1 moves in the axial direction.
  • the left seal 8 and the seal 9 seal when the
  • Functional element 1 is in its mounted state, the Drain line 6 from, so that a sealed connection of the drain line 6 is provided to a clean fluid line 12.
  • the lower seal 9 runs circumferentially around the entire functional element 1 and lies against the housing 10 on the inside.
  • the housing 10 may be slightly conical in the area where it forms the seal seat for the seal 9: First, to allow easy removal of the designed as an injection molded housing from the injection mold. Second, to the trouble-free insertion of the functional element 1 in the
  • the track rubs against the inside wall of the housing. Thirdly, in order to ensure a reliably tight contact of the seal 9 on the housing 10, by correspondingly reducing the clear width in the area where the housing 10 forms the seal seat for the seal 9.
  • a circumferential projection is provided on the folded filter element 4 in its lower region.
  • This projection is created by a glue bead 14, which has been applied circumferentially after production of the pleated filter element 4 and represents a first latching means.
  • the closure element 7 has a locking means corresponding thereto, namely a circumferential, inwardly projecting projection 15.
  • closure element 7 can form a baffle surface:
  • Feed line for the raw fluid which are guided through the pleated filter element 4 and is to be filtered, can open into the housing 10, for example at the level of the closure element 7.
  • the mouth of the feed line can connect tangentially to the housing 10, so that the raw fluid does not impinge on the folded filter element 4 with full momentum.
  • closure element 7 is held in its release position, ensures that even when removing the functional element 1 from the housing 10, the drain line 6 remains open, so that the functional element 1 can run empty during disassembly.
  • This keeping open of the closure element 7 is effected by the latching between the glue bead 14 and the inside circumferential projection 15 of the closure element 7.
  • a seal which has two sealing sections in a manner known per se, the two sealing sections being connected to one another.
  • the two sealing portions are pivotable relative to each other, so that in this way also a low-cost manufactured seal, which runs exclusively in a single plane, can be used to To seal complicated component geometries and seal, for example, angled lines meeting each other.
  • the two sealing portions 90 ° to each other.
  • a second, approximately bow-shaped sealing portion can thus be formed on an annular sealing portion, for example, which can be pivoted relative to the first sealing portion and in which advantageously the two connection points spaced from each other to the annular first
  • the seal between the two connection points extend as straight as possible.
  • Optimal is a really rectilinear course, as this causes a slight change in shape when pivoting the two seal sections against each other and thus optimal conditioning of the seal on the components to be sealed.
  • the one or more second sealing sections can adjoin the first sealing section, in particular if it is configured in an annular manner, projecting outward or inward.
  • the proposed seal is to be mounted on a component, which is then to be used in another component, so would outward projecting second sealing portions may possibly be problematic insofar as they would possibly strive from their deformed, pivoted arrangement, if necessary by restoring forces, not to abut the said component, but to deform back into an outwardly projecting position. This could lead to problems with the assembly of the component and possibly damage to the seal could not be ruled out.
  • Automotive industry is used for filtering fuel or oil, to be provided with such a seal and then to be introduced into an approximately cup-shaped housing of the filter.
  • the outwardly projecting arrangement of the second sealing portions would be advantageous because then the seal would automatically create the cup-shaped housing optimally by the aforementioned restoring forces.
  • the second sealing portions are arranged within the annular first sealing portion when the proposed seal is to be mounted on the filter insert.
  • the restoring forces would cause the second sealing sections to optimally rest against the filter insert and not protrude outwardly in such a way that the filter insert can be introduced into the filter housing without difficulty and with the sparing of the sealing material.
  • an additional holder can advantageously be provided, which is provided on the second sealing portion to be pivoted.
  • This holder can for example be designed as a tab or as a mushroom-shaped projection, so that the holder in a corresponding Ausaus can be depressed or buttoned.
  • the holder can be configured as an approximately annular eyelet, which can be buttoned to a corresponding advantage of the component, to which component the second sealing portion is intended to rest.
  • first seal portion may seal a first fluid space against a second fluid space
  • second seal portion may seal the second fluid space not only to the first but also to a third fluid space.
  • Fig. 6 shows the use of Fig. 2 together with the seal of
  • Fig. 1 within a surrounding component, Fig. 7 and 8, a seal with a plurality of second sealing portions in the production state, and Figs. 9 and 10, the seal of Figs. 7 and 8 in the assembled state.
  • 16 denotes a seal having a first, large, annular sealing portion 17 and a second, smaller, bow-shaped sealing portion 18th
  • FIG. 4 shows the seal 16 in the deformed state: both seal sections 17 and 18 each have, in a similar manner to a NEM O-ring - a circular material cross section of the sealing material, and the seal 16 has first been prepared so that both sealing portions 17 and 18 lie in a plane.
  • torsion of the first sealing portion 17 of the second sealing portion 18 is almost folded upwards, so pivoted until it runs in a plane which is shown in Fig. 4 and which extends 90 ° to the plane in which the first sealing portion 17 extends ,
  • FIG. 5 shows the seal 16 on a component which is configured as an insert 19.
  • Fig. 6 shows the insert 19 within a housing 20.
  • the housing 20 forms a nozzle 21 from.
  • a first fluid space 22 which is sealed by the first sealing portion 17 against the atmosphere surrounding the housing 20, which constitutes a second fluid space 23.
  • a fluid conduit extending through the insert 19 and the spigot 21 constitutes a third fluid space 24 which is sealed by the second sealing portion 18 both to the first fluid space 22 and to the ambient atmosphere, ie the second fluid space 23.
  • the provided there seals 8 and 9 are configured as a single seal 16 in the sense of the present proposal: the lower, circumferentially circumferential seal 9 represents the first seal portion 17, and the upper seals denoted by 8 are bow-shaped sealing portions similar to the second sealing portion 18 shown in Figs. 4 and 5, each extending around a certain fluid space, such as the drain conduit 6 shown on the left of Figs.
  • a Holder 25 indicated that holds the upwardly pivoted sealing portion in its pivoted position.
  • FIGS. 7 and 8 show a seal 16 having a plurality of second seal portions 18, each second seal portion 18 being provided with a holder 25.
  • the seal 16 is first produced particularly economically lying flat in only one plane. Only then is the first sealing portion 17 of the seal 16 rolled in such a way that the second sealing portions 18 are pivoted from the flat lying in a standing orientation, which is shown in Figs. 9 and 10.
  • the rolling movement for example, take place in that the seal 16 is rolled with its first sealing portion 17 on a component, such as. B. on the functional element 1 shown in FIG. 1, so that during this
  • the filter is provided in a manner known per se with two spaces sealed off from each other in a fluid-tight manner, namely a so-called filter space in which a filter element is arranged and on the other hand with a so-called collecting space which has no filter function.
  • the filter element When used as a fuel filter, the filter element may be arranged, for example, in the filter chamber through which the unpurified fuel is passed, not only unwanted particles are filtered out of the fuel in the filter chamber, but also a separation of water contained in the fuel in the filter compartment. The separated water, which has a higher specific gravity than the fuel, automatically sinks down and enters the plenum.
  • a channel runs out of the filter chamber through the collecting chamber to the outside, for example as an inlet channel, to lead uncleaned fuel into the filter chamber, or as a discharge channel, which cleaned fuel out of the filter. leads, for example, to an injection system of an internal combustion engine.
  • the channel does not exit axially downwards, that is to say out of the bottom surface of the filter housing, but rather is guided radially outward, that is to say through the peripheral surface of the housing.
  • Fig. 1 1 shows an embodiment of a filter which is substantially similar to that of Figs. 1 to 3, so that the same components with the same reference numerals as in the above-described Figs. 1 to 6 are designated. However, in Fig. 1 1, the closure element 7 of the functional element 1 is not shown.
  • the cup-shaped filter housing 10 has an upper filter chamber, in which the folded filter element 4 is arranged. In its lower region, the housing 10 has a bottom 26 and, above the bottom, a collecting space 27 in which water fractions separated from the fuel collect by gravity. Both the filter room and the
  • Collecting space 27 are surrounded by an approximately cylindrical circumferential surface area 28.
  • the drain line 6 leads through the collecting space 27 and is sealed against it.
  • a seal 16 is used which is similar to the embodiment of FIGS. 7 to 10 configured. It has a first circumferential sealing portion 17, and a plurality of second sealing portions 18 which extend arcuately upwards, so that one of these second sealing portions 18 surrounds the drain line 6 and seals against the housing 10.
  • the bottom 26 may be designed optimally smooth and easy to clean and since it has no downward, axially out of the housing 10 leading connections, therefore, the filter according to FIG. 1 1 designed in tight space conditions, ie with the bottom 26 tight Be mounted above other components, as below the bottom 26 no in the filter or the filter leading channels must be laid.
  • a filter is provided in which two leads leading into the housing or from the housing lines through the peripheral surface of the housing.
  • the corresponding passage openings of the lines are not arranged one above the other in the housing, but rather are spaced apart from one another along the circumference of the circumferential surface area. In this way it is possible to realize at a very low height of the filter housing, a plurality of terminals, so that a filter with compact dimensions and a high functional density can be realized.
  • the passage openings can be arranged within a plane, that is to say within a disc-shaped section of the filter, this imaginary pane extending transversely to the central axis of the housing, so that the passage openings are arranged within an imaginary band surrounding the housing.
  • the above-mentioned one-piece seal which has a first and one or more second seal sections, can be advantageously used in this embodiment of the filter: since the passage openings in the housing Sealed are provided on the same axial height of the filter housing, a seal may be provided, the first seal portion is designed as a large ring and the entire filter housing rests all around, for example, rests on the inside of the filter housing.
  • the housing of the filter can advantageously have a round, in particular a circular cross-section.
  • a uniform sealing effect is promoted, and this is especially the case with a circular cross-section of the housing to a particularly pronounced extent.
  • FIGS. 1 to 3 such an embodiment of the filter is provided.
  • the drain line 6 is provided with a second line 29 opposite it.
  • the drain line 6 leads to a passage opening 30 of the housing 10, so on the right side, not shown in FIG. 2, for the second line 29, there is a corresponding passage opening in the peripheral surface 28 of FIG Housing 10 is provided.
  • a second line 29 is shown, which extends to a passage opening in the circumferential surface 28 of the housing 10, wherein this passage opening is not in the sectional plane of Fig. 1 1 and therefore not shown in Fig. 1 1.
  • the filter is designed as a fuel filter.
  • a filter housing which is closed with a removable cover, for example with a screw cap.
  • a manual feed pump is provided in the fuel circuit, which serves, for example, after a filter change, in which air has come into the fuel circuit, first fill the air-filled spaces with fuel before, for example, supplied by the fuel downstream injection system or internal combustion engine is operated again.
  • the fuel manual feed pump is arranged in such a way that it can be easily operated after the filter change. It is therefore intended that the manual feed pump is actuated by means of a pump handle, which is accessible when the lid of the filter is closed. Since the cover of the filter housing must be accessible anyway for the filter change, and the pump handle of the manual feed pump is therefore easily accessible.
  • a fuel filter designed in this way can also be used in confined installation spaces, since only one access path must be provided, namely that which is in any case necessarily provided for changing the filter, namely to detect the cover and remove it from the filter housing. In contrast to other arrangements of the manual feed pump no second access space is required to operate the manual feed pump can.
  • a support element is advantageously provided anyway, which for example is referred to as a support dome and which secures a cross-sectionally annular filter element against collapse, if this filter terelement is flowed through radially from outside to inside and occur during operation of the fuel filter usual pressures and temperatures.
  • This support element can either be designed as part of the interchangeable filter insert or remain filter-like as a so-called support dome in the housing of the filter when the filter element is replaced.
  • FIG. 12 shows a fuel filter with a manual feed pump provided in the cover, wherein the manual feed pump is in the locked state
  • FIG. 13 shows the filter of FIG. 12 with unlocked manual feed pump
  • FIG. 14 shows the same filter with the pump handle fully extended
  • FIG. 15 shows the lid together with manual feed pump of the filter of FIGS. 12-14.
  • FIG. 12 shows a fuel filter with an approximately cup-shaped housing 10, a folded filter element 4 with an annular cross-section and a screw-off cover 31 closing off the housing 10.
  • a support element 32 is provided which is part of a replaceable one Filter insert is designed and which the
  • Pleated filter element 4 is supported inside.
  • a manual feed pump 33 is arranged, which has a pump handle 34 for actuating the manual feed pump 33, which is mounted axially displaceable back and forth.
  • the pump handle 34 is screwed to the lid 31 and is in Fig. 12 in its secured or locked position, so it is completely screwed into the lid 31.
  • Fig. 13 shows the same fuel filter as Fig. 12, but with the pump handle 34 unscrewed from the lid 31, so that the manual feed pump 33 can now be operated.
  • Fig. 14 shows the same arrangement, however, as shown in FIG. 14, the pump handle 34 is at most far out of the other manual feed pump 33 and thus pulled out of the lid 31, so has executed the maximum pump stroke.
  • Fig. 15 shows the lid 31 in a unscrewed from the housing 10 representation: Even the interchangeable filter insert is dismantled, which is otherwise held by locking lugs 35.
  • a closure element can be provided which seals the inlet or outlet lines of the filter when a functional element is removed from the filter or before such a functional element is mounted.
  • this closure element it is envisaged not to provide this closure element on the functional element itself so as to securely close the lines of the functional element, but it is intended to provide the closure element on the filter housing, so that, for example, between raw and clean lines no mixing can take place.
  • the closure element is provided according to the proposal, which is mounted filter-tight, so remains on the filter housing when the functional element is removed from the filter, for example in a filter change an off replaceable filter cartridge is removed from the filter housing and replaced by a fresh filter insert.
  • the closure element can be configured as a ring, so that with simple means several mouths or
  • Passage openings of several supply or discharge lines can be opened or closed simultaneously by the movement of this ring.
  • the mouths of the inlet or outlet lines to be opened or closed are arranged in an upright annular surface, for example by being configured as passage openings in the peripheral surface of the filter housing.
  • contamination of the lines is prevented by falling particles anyway, so that a particularly reliable protection of the lines from penetrating contaminants is possible.
  • the closure element may advantageously be designed as a spring-loaded component which automatically, namely through the
  • the spring Upon removal of the functional element, the spring causes the movement of the closure element from its forced release position into the closed position.
  • a stop can advantageously be provided which prevents the movement of the closure element which is caused by the spring. borders.
  • FIG. 16 shows a filter whose closure element is in its release position, and whose functional element is mounted in the filter, and
  • Fig. 17 the same filter during assembly or disassembly of the functional element, wherein the closure element assumes its closed position.
  • a fuel filter is shown, with a housing 10, a lid 31, a manual feed pump 33 and a
  • a functional element 1 is configured as a replaceable filter insert, which includes further functional modules below the pleated filter element 4, for example a prefilter as well as inlet and outlet lines, such as, for example. a. a portion of the drain line 6.
  • a closure element 36 With its lower portion of the functional element 1 is a closure element 36, which rests as a circumferential ring of the inside of the circumferential surface 28 of the housing 10. The closure element 36 is acted upon by a compression spring 37 and pushed upwards, but held by the assembled functional element 1 against the action of the compression spring 37 in its release position.
  • the functional element 1 When the lid 31 is unscrewed from the housing 10 of the filter, the functional element 1 is also moved upwardly out of the housing 10, since it is connected via latching arms 3 and latching lugs 35 with the lid 31. Accordingly, by the upward movement of the functional element 1, the compression spring 37 can relax and at the same time encode the lead ment 36 upwards, so that the annular closure member 36, the passage opening 30 of the drain line 6 closes.
  • a retaining ring 38 which forms a plurality of outwardly projecting tongues a plurality of stops 39, against which the annular closure member 36 with an inwardly bent retaining collar 40 during its upward movement, so that even before - Handener voltage of the compression spring 37, the closure element
  • a highly integrated filter which contains both a pre-filter with coarser, so lower filter fineness and the actual main filter.
  • the coarse filter may for example have a fineness of 100 microns, while the main filter has a filter fineness of 2 microns. It is provided to arrange the filter within a fluid system in which several other components are provided.
  • drain and supply lines are provided which allow a main filter circuit separate from the prefilter circuit, so that the fluid firstly passes into the filter where it is pre-filtered and subsequently is led out of the filter again, can be performed to another unit and then via a further supply line in the main filter can be filtered out and filtered out of the filter again.
  • a fuel filter When used as a fuel filter can be provided, for example, between the pre-filter and the main filter to provide a prefeed pump, while in the flow direction behind the main filter then a high pressure pump can be provided which supplies the fuel under high pressure an injection system.
  • Fig. 18 is a longitudinal section through a fuel filter with
  • Fig. 19 is a section through the same filter along the line
  • FIG. 20 shows a cross section through the filter along the plane B - B from FIG. 18, in which illustration A - A as well as the line progression C - C can be seen
  • FIG. 21 shows a view from below of the same filter, namely in FIG Plane E - E of FIG. 18.
  • a fuel filter with a housing 10 and a lid 31 is shown, wherein within the filter housing, a functional element 1 is arranged, which substantially corresponds to that of Fig. 1 to 3 , so that reference is expressly made to these figures, wherein, however, the closure element 7 is not shown and the filter shown in Fig. 18 is equipped with a manual feed pump 33.
  • a prefilter element 41 which, like the Faltenfilterlement 4 a ringförmi- has a seal 16 - as described above - with a first circumferential sealing portion 17 and a plurality of bow-shaped or arcuate second sealing portions 18 is provided on the functional element 1.
  • Fig. 20 shows a section through the functional element 1 in the
  • the drain line for the main filter is shown, which leads to the passage opening 30.
  • the inlet to the main filter is higher up and not in the same plane.
  • a connecting piece is indicated very diagrammatically at 42, which connects tangentially to the circumferential surface 28 of the housing 10, so that the inflowing fuel does not reach full flow due to the tangenzial flow Pulse is directed to the pleated filter element 4 and, accordingly, the pleated filter element 4 is protected from damage by the impinging fuel ström.
  • the other inlets and outlets which lie in a plane together with the drain line 6, are, as shown in FIG. 20, a supply line 43 to the prefilter and a return line 44 from the prefilter and a vent line 45 which ultimately leads back to the fuel tank and the fuel and air bubbles contained in the fuel are returned to the tank and, in the event of servicing, when the filter is opened and the lid 31 is unscrewed, fuel inside the filter cup flows back into the tank.

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

Abstract

Filtre pour fluides de fonctionnement d'un moteur à combustion interne, tels que de l'huile ou du carburant, qui comporte un carter et un élément fonctionnel pouvant être monté dans le carter, tel qu'un élément filtrant. L'élément fonctionnel comporte une conduite d'entrée ou d'évacuation pour un fluide, et un élément de fermeture, placé sur l'élément fonctionnel, qui ferme la conduite d'entrée ou d'évacuation lorsque l'élément fonctionnel n'est pas monté et qui est conçu mobile par rapport à l'autre élément fonctionnel de manière telle que lors du montage de l'élément fonctionnel, ledit élément de fermeture se place automatiquement dans une position de libération dans laquelle il libère la conduite d'entrée ou d'évacuation lorsque l'élément fonctionnel est monté.
PCT/DE2009/075025 2008-06-09 2009-06-08 Filtre pour fluides de fonctionnement d'un moteur à combustion interne et parties constituant un tel filtre WO2009149706A2 (fr)

Priority Applications (1)

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CN200980127322XA CN102112194A (zh) 2008-06-09 2009-06-08 用于内燃机的工作介质的过滤器和这种过滤器的组成部分

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008027374A DE102008027374A1 (de) 2008-06-09 2008-06-09 Filter für Betriebsmittel einer Brennkraftmaschine, und Bestandteile eines solchen Filters
DE102008027374.0 2008-06-09

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WO2009149706A2 true WO2009149706A2 (fr) 2009-12-17
WO2009149706A3 WO2009149706A3 (fr) 2010-03-18

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WO2016038171A1 (fr) * 2014-09-12 2016-03-17 Mann+Hummel Gmbh Élément filtrant en forme de plaque pour la filtration de gaz
WO2019219657A1 (fr) * 2018-05-18 2019-11-21 Mann+Hummel Gmbh Couvercle conçu pour un système de filtration, garniture d'étanchéité conçue pour un couvercle et système de filtration comportant un couvercle
US10526918B2 (en) 2015-03-13 2020-01-07 Volvo Truck Corporation Engine arrangement
US11946396B2 (en) 2020-09-09 2024-04-02 Lubrication Technologies, Inc. Liquid filter arrangement for no-mess liquid change

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DE102012210834A1 (de) * 2012-06-26 2014-01-02 Hengst Gmbh & Co. Kg Flüssigkeitsfilter mit einem Filterumgehungsventil und einem zentralen Ablasskanal und Filtereinsatz für ein Flüssigkeitsfilter
DE102012220395A1 (de) * 2012-11-08 2014-05-08 Robert Bosch Gmbh Vorrichtung zum Fördern von Kraftstoff
US11452953B2 (en) * 2018-01-16 2022-09-27 Volvo Truck Corporation Engine oil system and a lid
DE102020208934A1 (de) * 2020-07-16 2022-01-20 Mahle International Gmbh Filtermodul
DE102022102039A1 (de) 2022-01-28 2023-08-03 Mann+Hummel Gmbh Filtervorrichtung zum Filtern eines Fluids, Verwendung eines Filterelements in einer Filtervorrichtung, und Verfahren zum Austausch eines Filterelements

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EP0405447A2 (fr) * 1989-06-28 1991-01-02 Stanadyne Automotive Corp. Filtre pour carburants
DE8909261U1 (de) * 1989-08-01 1989-10-05 Ing. Walter Hengst GmbH & Co KG, 4400 Münster Filtereinrichtung zum Filtern von Kraftstoff mit einer Kraftstoffpumpe
DE4310492A1 (de) * 1993-03-31 1994-10-06 Hydac Filtertechnik Gmbh Filtervorrichtung mit Keyportanschluß
US5858227A (en) * 1996-09-23 1999-01-12 Parker-Hannifin Corporation Fuel filter assembly with in-line valve
DE20320861U1 (de) * 2002-12-24 2005-05-04 Officine Metallurgiche G. Cornaglia S.P.A. Luftfiltervorrichtung für Brennkraftmaschine
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016038171A1 (fr) * 2014-09-12 2016-03-17 Mann+Hummel Gmbh Élément filtrant en forme de plaque pour la filtration de gaz
CN106999830A (zh) * 2014-09-12 2017-08-01 曼·胡默尔有限公司 用于气体过滤的板式过滤器元件
US10279298B2 (en) 2014-09-12 2019-05-07 Mann + Hummel Gmbh Plate-type filter element for gas filtration
US10526918B2 (en) 2015-03-13 2020-01-07 Volvo Truck Corporation Engine arrangement
WO2019219657A1 (fr) * 2018-05-18 2019-11-21 Mann+Hummel Gmbh Couvercle conçu pour un système de filtration, garniture d'étanchéité conçue pour un couvercle et système de filtration comportant un couvercle
US20210138380A1 (en) * 2018-05-18 2021-05-13 Mann+Hummel Gmbh Cover for a Filter System, Seal for a Cover, and Filter System Comprising a Cover
US11857903B2 (en) 2018-05-18 2024-01-02 Mann+Hummel Gmbh Cover for a filter system, seal for a cover, and filter system comprising a cover
US11946396B2 (en) 2020-09-09 2024-04-02 Lubrication Technologies, Inc. Liquid filter arrangement for no-mess liquid change

Also Published As

Publication number Publication date
CN102112194A (zh) 2011-06-29
WO2009149706A3 (fr) 2010-03-18
DE102008027374A1 (de) 2009-12-10

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