WO2000031407A1 - Moyens de filtrage perfectionnes pour ensemble de puisage de carburant - Google Patents
Moyens de filtrage perfectionnes pour ensemble de puisage de carburant Download PDFInfo
- Publication number
- WO2000031407A1 WO2000031407A1 PCT/FR1999/002695 FR9902695W WO0031407A1 WO 2000031407 A1 WO2000031407 A1 WO 2000031407A1 FR 9902695 W FR9902695 W FR 9902695W WO 0031407 A1 WO0031407 A1 WO 0031407A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter
- lip
- assembly according
- housing
- axis
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 18
- 238000001914 filtration Methods 0.000 title description 8
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000004033 plastic Substances 0.000 claims abstract description 10
- 230000005489 elastic deformation Effects 0.000 claims abstract description 9
- 239000004952 Polyamide Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920001470 polyketone Polymers 0.000 claims description 3
- 229920006324 polyoxymethylene Polymers 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 7
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000008961 swelling Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
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
- B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- 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
- B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
-
- 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
- B01D35/30—Filter housing constructions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
- F02M37/34—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements by the filter structure, e.g. honeycomb, mesh or fibrous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/29—Filter cartridge constructions
- B01D2201/291—End caps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/34—Seals or gaskets for filtering elements
Definitions
- the present invention relates to the field of fuel drawing devices for motor vehicles, comprising a filter. Numerous filter arrangements have already been proposed for such fuel draw-off devices.
- the filter element 10 has a filter body 12 of annular geometry, for example formed of an accordion-folded paper, disposed between two annular flanges, at its axial ends, including the flange referenced 14 in FIG. 1.
- Each of these flanges 14 has a general cross-section in a "U" shape with a concavity directed towards the filter body 12, and the core 15 of which has, after drawing, a protrusion 16.
- This filter element 10 is disposed in an annular chamber 22 of the housing 20. And as can be seen in FIG. 1 an O-ring 30 made of elastomer is interposed between a recess 24 formed on the wall of the housing 20 and the protrusion 16. This gasket 30 is intended to seal between the flange 14 and the housing 20 to prevent the filter from bypassing the fuel, so that the fuel passes radially through the filter body 12.
- the document DE-A-19718603 recommends the use of an elastic zig-zag sealing structure
- the documents DE-A-19711531 and DE-A-19646350 recommend structures of sealing adapted to be engaged / embedded on complementary structures opposite to ensure sealing by labyrinth effect or equivalent.
- the object of the present invention is to propose new means making it possible to simplify the filtering structures for a fuel drawing assembly for motor vehicles.
- a drawing assembly comprising a housing having an annular chamber and a filter disposed in said annular chamber, characterized in that it comprises at least one annular lip made of plastic material of material on a part linked to the housing or to the filter in a material capable of undergoing elastic deformation, and shaped in an oblique orientation relative to the axis of the filter and of the housing chamber, so that said lip comes to rest , with elastic deformation, and in an orientation with a tangential component by its free end, against a facing face, on the other side of the filter or of the housing, disposed substantially transversely to the axis of the filter and of the housing chamber, for seal at this level between the filter and the housing.
- FIG. 1 previously described, schematically represents the general structure of a filter for a drawing assembly in accordance with an arrangement previously proposed by the Applicant,.
- FIG. 2 schematically represents, in exploded view before assembly, the general structure of a filter for a drawing assembly in accordance with the present invention and
- FIG. 3 shows an axial sectional view of an alternative embodiment according to the present invention, in the assembled position.
- a filter element 100 disposed in a housing 200.
- the filter element 100 is adapted to be traversed radially by fuel.
- This filter element 100 can be arranged upstream or downstream of an associated pump, preferably made up in a known manner of an electrically controlled pump.
- the filter element 100 consists of an annular structure centered on an axis parallel to the axis referenced O-O in FIGS. 2 and 3.
- the filtering element 100 has a filtering body 112 of annular geometry, for example formed of a paper folded in accordion, disposed between two annular flanges 120, 130, at its axial ends.
- the two flanges 120, 130 may be identical. However, in the context of the invention, it is possible to design a filter element 100 equipped with different flanges 120, 130, respectively on its ends.
- Each of the flanges 120, 130 has a general cross-section in "U” with concavity directed towards the filtering body 112.
- the flasks 120, 130 illustrated in FIGS. 2 and 3 thus have a core 121, 131 arranged on the axial edge of the filter element 112 perpendicular to the axis OO and extended laterally respectively by two wings 122, 123; 132, 133, joined one 122, 132 against the radially internal surface 113 of the body filter 112, the other 123, 133, against the radially external surface 114 of this body, parallel to the axis OO.
- the flanges 120, 130 are advantageously made from plastic. More specifically, preferably, the flanges 120, 130 are made from materials chosen from the group comprising polyacetals, polyamides and polyketones.
- the housing 200 is also preferably made of plastic. It is preferably a material chosen from the group comprising polyacetals, polyamides and polyketones.
- the housing 200 can be superimposed on a reserve bowl or bowl into which the fuel pump sucks. Alternatively, the housing 200 can be integrated into this reserve bowl or bowl.
- the housing 200 defines an annular chamber 220 housing the filter 100.
- This annular chamber 220 can be formed by assembling two shells 280, 290 which make up the housing 200.
- the annular chamber 220 is generally defined by two main walls 282, 284; 292, 294 concentric cylindrical centered on an axis parallel to the axis O-O.
- These two main walls 282, 284; 292 294 are connected to each other by a base wall 286, 296 in the general shape of a crown extending in a general direction orthogonal to the axis O-O.
- each base wall 286, 296 is provided with an annular wall 288, 298 which thus projects axially towards the interior of the chamber 220.
- each wall 288, 298, through its apex, can serve as support for the core 121, 131 of a flange 120, 130.
- each flange 120 each flange 120,
- each lip 126, 136 comprises according to the invention a lip 126, 136 designed to seal with the facing wall 286, 296 of the housing.
- Each lip 126, 136 came from molding, in plastic material, respectively on the flange 120 or 130.
- each lip 126, 136 is made of a plastic material capable of undergoing elastic deformation and are shaped in an oblique orientation relative to the axis O-O of the filter 100 and of the chamber 220 of the housing.
- each lip 126, 136 comes to rest, with elastic deformation, and in an orientation with tangential components, by its free end 127, 137, against a facing face 286, 296, shells 280 , 290 of the housing, which face is disposed substantially transversely to the axis OO of the filter 100 and of the chamber 220 of the housing.
- the lip 126, 136 is connected, at 125, 135, to the radially internal edge of the flanges 120, 130. From this zone 125, 135 of connection on the flange 120 , 130, the lip 126, 136 is directed generally radially outward, that is to say away from the axis OO, also diverging from the outer face of the flange 121, 131, in the direction of its free end 127, 137.
- lips 126, 136 connected to the radially outer edge of the flanges 120, 130 and directed from this connection zone radially inwards, diverging from the external face of the flanges 120, 130 in the direction of their free end.
- the lips 126, 136 can be connected to the outer face of the flanges 120, 130 at an intermediate point of blades 121, 131, having an oblique orientation relative to the axis OO, from of this connection area.
- the lips 126, 136 may have a straight profile. However, preferably, they have an at least slightly rounded profile as illustrated in the appended figures.
- the lips 126, 136 extend in a generally axial direction, that is to say parallel to the axis OO. Then the lips 126, 136 tilt, to become oblique with respect to the axis OO. They thus have, at their main section, an average inclination of between 60 and 80 ° relative to the axis OO.
- the lips 126, 136 are at least slightly tapered towards their free end.
- the free ends 127, 137 of these lips are located substantially in line with the middle of the core 121, 131 of the flanges 120, 130.
- the extensions of the lips 126, 136, from their connection zones 125, 135 to their free ends 127, 137, are substantially equal to half the width of the webs 121, 131 of the flanges considered. transverse to the axis OO.
- the length of the lips 126, 136 is thus of the order of 10mm.
- the gap defined at rest between the free end 127, 137 of the lips 126, 136, and the outer surface of the webs 121, 131 of the flanges 120, 130 is advantageously of the order 5mm.
- the average thickness of the lips 126, 136 is of the order of 1 mm.
- each lip 126, 136 can be provided in the vicinity of its free end 127, 137, with a protrusion 128, 138, projecting from the outer surface of the lip 126, 136.
- the function of this protrusion 127, 137 is to guarantee contact of the lip 126, 136 against the wall 286, 296 of the housing, limited to the free end of the lip.
- the height of the chamber 220 that is to say the dimension of this chamber 220 considered parallel to the axis OO must be greater than the height of the filter, that is to say the distance separating the outer surfaces of the webs 121, 131 of the flanges 120, 130, while being less than the distance separating at rest the free ends 127, 137 of the lips 126, 136, to thus guarantee an elastic deformation of the lips 126, 136.
- the chamber 220 is filled with fuel.
- the sealing lip 126, 136 is itself bathed in fuel. Therefore, the volume of the lip 126, 136 tends to inflate so that, after assembly, in operation, the lip 126, 136 is pressed automatically against the facing wall 286, 296 of the housing and guarantees a sufficient seal between the flange 120, 130 respectively and the housing 200, thus preventing any bypassing of the filter 100. Thanks to this arrangement, it is guaranteed that the fuel passing through the pump passes radially through the filtering body 112.
- such a filter 100 can be arranged upstream or downstream of the pump.
- the configuration proposed according to the present invention offers numerous advantages over the state of the art. Firstly, it will be noted that the present invention makes it possible to simplify the assembly considerably since it makes it possible to eliminate any need for checking the presence of a seal.
- the simple assembly of the filter body 112 equipped with the flanges 120, 130 in the chamber 220 ensures sufficient sealing between the two compartments located respectively on either side of the filter body 112, to avoid contamination of the fuel located downstream thereof, in the direction of fuel flow.
- the close contact defined between the lip 126, 136 and the housing 200 prohibits any bypassing of the filter body, in the form of a parasitic flow between the filter body 100 and the housing 200, in particular because the upstream and downstream compartments of the filtering system, located respectively on either side of the filter 100, are substantially under pressure.
- the lips 126, 136 make it possible to ensure the aforementioned function thanks to the combination of two characteristic elements: the elastic stress obtained by deformation of the lip 126, 136 during assembly on the one hand, and the swelling of the lips after soaking in fuel, on the other hand.
- the present invention saves time and costs.
- the housing 200 and the flanges 120, 130 can be made from an identical plastic material, or from different plastic materials, possibly one being loaded and the other not.
- the main thing is that the part which carries the lips 120, 130 is made of a material capable of undergoing elastic deformation, as well as preferably of swelling significantly when the lip is immersed in the fuel.
- only one of the flanges 120,130 is provided with an elastic lip as described above.
- At least one of the elastic sealing lips is provided on the housing, molded on a wall 286 or 296 and adapted to come to rest against the outer surface of the cores 121, 131 of the flanges 120, 130.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtration Of Liquid (AREA)
- Gasket Seals (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9915656-3A BR9915656A (pt) | 1998-11-24 | 1999-11-04 | Conjunto de extração de carburante para veìculo automóvel |
DE69905755T DE69905755T2 (de) | 1998-11-24 | 1999-11-04 | Verbesserte filtrierungseinrichtung für brennstoffzuführungseinrichtung |
US09/856,620 US6589419B1 (en) | 1998-11-24 | 1999-11-04 | Filtering means for fuel drawing assembly |
JP2000584193A JP2002533600A (ja) | 1998-11-24 | 1999-11-04 | 燃料吸引アセンブリ用の改善されたフィルター手段 |
EP99954059A EP1133633B1 (fr) | 1998-11-24 | 1999-11-04 | Moyens de filtrage perfectionnes pour ensemble de puisage de carburant |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9814763A FR2786224B1 (fr) | 1998-11-24 | 1998-11-24 | Moyens de filtrage perfectionnes pour ensemble de puisage de carburant |
FR98/14763 | 1998-11-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000031407A1 true WO2000031407A1 (fr) | 2000-06-02 |
Family
ID=9533104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1999/002695 WO2000031407A1 (fr) | 1998-11-24 | 1999-11-04 | Moyens de filtrage perfectionnes pour ensemble de puisage de carburant |
Country Status (8)
Country | Link |
---|---|
US (1) | US6589419B1 (fr) |
EP (1) | EP1133633B1 (fr) |
JP (1) | JP2002533600A (fr) |
CN (1) | CN1331781A (fr) |
BR (1) | BR9915656A (fr) |
DE (1) | DE69905755T2 (fr) |
FR (1) | FR2786224B1 (fr) |
WO (1) | WO2000031407A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2833890B1 (fr) * | 2001-12-21 | 2005-04-22 | Inergy Automotive Systems Man | Reservoir a carburant pour vehicule automobile |
US7475678B2 (en) * | 2005-03-17 | 2009-01-13 | Walbro Engine Management, L.L.C. | Integrated fuel delivery system |
DE102006034943A1 (de) * | 2006-07-28 | 2008-01-31 | Hydac Filtertechnik Gmbh | Filtersystem für Fluide |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2272314A1 (en) * | 1974-05-21 | 1975-12-19 | Labinal | Self-centering plastic sealing ring - for cylindrical cartridge filters |
DE4140140A1 (de) * | 1991-07-23 | 1993-06-09 | Knecht Filterwerke Gmbh, 7000 Stuttgart, De | Anschraubfilter fuer fluessigkeiten |
DE19718603A1 (de) * | 1996-05-02 | 1997-11-06 | Knecht Filterwerke Gmbh | Endscheibe für ein Ringfilterelement |
DE19711531A1 (de) * | 1997-03-20 | 1997-12-11 | Schiffer Walter | Kraftstoffilter mit Druckregelventil |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5399264A (en) * | 1993-03-22 | 1995-03-21 | Cuno, Incorporated | Compressible differential pressure energized seals for filter elements and the like |
US5670042A (en) * | 1993-06-18 | 1997-09-23 | Parker Hannifin Corporation | Fuel filter assembly with replaceable element having integral cover |
DE9412297U1 (de) | 1994-08-02 | 1994-11-10 | Eckly, Matthias, 65520 Bad Camberg | Überbrückungsspindeltraverse für den Gerüstbau |
DE9414297U1 (de) * | 1994-09-06 | 1994-10-27 | Filterwerk Mann & Hummel Gmbh, 71638 Ludwigsburg | Filter |
DE19523626A1 (de) * | 1995-06-29 | 1997-01-02 | Daimler Benz Ag | Druckregelventil für in Verbrennungsmotoren einzuspritzenden Kraftstoff und Integration dieses Druckregelventils in ein Kraftstoffilter |
DE19646350C2 (de) * | 1996-11-09 | 2000-07-06 | Mahle Filtersysteme Gmbh | Flüssigkeitsfilter, insbesondere Kraftstoffilter für Verbrennungsmotoren |
IT1290007B1 (it) * | 1997-03-03 | 1998-10-19 | Bitron Spa | Gruppo di aspirazione e mandata del carburante ad un motore, in particolare per autoveicoli |
-
1998
- 1998-11-24 FR FR9814763A patent/FR2786224B1/fr not_active Expired - Fee Related
-
1999
- 1999-11-04 EP EP99954059A patent/EP1133633B1/fr not_active Expired - Lifetime
- 1999-11-04 CN CN99814890A patent/CN1331781A/zh active Pending
- 1999-11-04 DE DE69905755T patent/DE69905755T2/de not_active Expired - Lifetime
- 1999-11-04 US US09/856,620 patent/US6589419B1/en not_active Expired - Lifetime
- 1999-11-04 WO PCT/FR1999/002695 patent/WO2000031407A1/fr active IP Right Grant
- 1999-11-04 JP JP2000584193A patent/JP2002533600A/ja active Pending
- 1999-11-04 BR BR9915656-3A patent/BR9915656A/pt not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2272314A1 (en) * | 1974-05-21 | 1975-12-19 | Labinal | Self-centering plastic sealing ring - for cylindrical cartridge filters |
DE4140140A1 (de) * | 1991-07-23 | 1993-06-09 | Knecht Filterwerke Gmbh, 7000 Stuttgart, De | Anschraubfilter fuer fluessigkeiten |
DE19718603A1 (de) * | 1996-05-02 | 1997-11-06 | Knecht Filterwerke Gmbh | Endscheibe für ein Ringfilterelement |
DE19711531A1 (de) * | 1997-03-20 | 1997-12-11 | Schiffer Walter | Kraftstoffilter mit Druckregelventil |
Also Published As
Publication number | Publication date |
---|---|
FR2786224A1 (fr) | 2000-05-26 |
BR9915656A (pt) | 2001-08-07 |
US6589419B1 (en) | 2003-07-08 |
FR2786224B1 (fr) | 2001-12-07 |
CN1331781A (zh) | 2002-01-16 |
EP1133633B1 (fr) | 2003-03-05 |
DE69905755D1 (de) | 2003-04-10 |
JP2002533600A (ja) | 2002-10-08 |
DE69905755T2 (de) | 2004-02-19 |
EP1133633A1 (fr) | 2001-09-19 |
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