FR2784598A1 - Internal combustion engine liquid, e.g. oil, filter has one-piece molded plastic shut-off valve with head and stem narrower than seat - Google Patents
Internal combustion engine liquid, e.g. oil, filter has one-piece molded plastic shut-off valve with head and stem narrower than seat Download PDFInfo
- Publication number
- FR2784598A1 FR2784598A1 FR9812868A FR9812868A FR2784598A1 FR 2784598 A1 FR2784598 A1 FR 2784598A1 FR 9812868 A FR9812868 A FR 9812868A FR 9812868 A FR9812868 A FR 9812868A FR 2784598 A1 FR2784598 A1 FR 2784598A1
- Authority
- FR
- France
- Prior art keywords
- valve
- filter
- valve seat
- head
- valve head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims description 14
- 238000002485 combustion reaction Methods 0.000 title claims description 7
- 239000002991 molded plastic Substances 0.000 title description 2
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 7
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 claims description 3
- 239000002184 metal Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 229920010930 Hytrel® 5556 Polymers 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
-
- 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
- B01D35/14—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
- B01D2201/16—Valves
- B01D2201/162—Valves with snap, latch or clip connecting means
-
- 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
- B01D2201/305—Snap, latch or clip connecting means
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/40—Special measures for connecting different parts of the filter
- B01D2201/4084—Snap or Seeger ring connecting means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
- F01M2001/105—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements
- F01M2001/1092—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the layout of the purification arrangements comprising valves bypassing the filter
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
Description
Filtre a liquidepourmoteuràcombustion interne.Liquid filter for internal combustion engine.
La présente invention est relative aux filtres à liquide pour moteurs à combustion interne. The present invention relates to liquid filters for internal combustion engines.
Plus particulièrement, 1'invention concerne un filtre à liquide pour moteur à combustion interne, comportant :
-un boîtier doté d'au moins une entrée de liquide et une sortie de liquide,
-un élément filtrant interposé de façon étanche entre l'entrée et la sortie de liquide,
-un by-pass reliant directement l'entrée et la sortie de liquide,
-et une soupape de décharge adaptée pour fermer le by-pass lorsque le filtre fonctionne normalement, et pour ouvrir le by-pass uniquement lorsqu'il règne entre l'entrée et la sortie de liquide une différence de pression supérieure à une valeur prédéterminée, cette soupape de décharge comprenant elle-mme : . un siège de clapet annulaire traversé au moins par un passage central,
un clapet obturateur comprenant d'une part, une tte de clapet dotée d'une garniture d'étanchéité en élas tomère adaptée pour venir en appui contre le siège de clapet en fermant le by-pass, et d'autre part, un organe d'accrochage qui s'étend à partir de la tte de clapet en traversant le passage central, . et un ressort monté entre le siège de clapet et l'organe d'accrochage à l'opposé de la tte de clapet, pour solliciter ladite tte de clapet vers le siège de clapet.More particularly, the invention relates to a liquid filter for an internal combustion engine, comprising:
a housing provided with at least one liquid inlet and one liquid outlet,
a filter element interposed in a sealed manner between the inlet and the outlet of the liquid,
-a bypass directly connecting the liquid inlet and outlet,
-and a relief valve adapted to close the bypass when the filter is operating normally, and to open the bypass only when there is a pressure difference between the inlet and the outlet greater than a predetermined value, this relief valve itself comprising: an annular valve seat crossed at least by a central passage,
a shutter valve comprising on the one hand, a valve head provided with an elastomeric sealing gasket adapted to bear against the valve seat by closing the bypass, and on the other hand, a member of 'hooking which extends from the valve head through the central passage,. and a spring mounted between the valve seat and the latching member opposite the valve head, to urge said valve head towards the valve seat.
Le document US-A-5 589 060 décrit un exemple d'un tel filtre, dans lequel la tte de clapet et l'organe d'accrochage sont deux pièces métalliques distinctes fixées l'une à l'autre. De ce fait, le clapet obturateur est complexe et couteux. Document US-A-5,589,060 describes an example of such a filter, in which the valve head and the attachment member are two separate metal parts fixed to one another. Therefore, the shutter valve is complex and expensive.
De plus, l'organe d'accrochage présente (comme la tte de clapet) une partie plus large que le siège de clapet, de sorte que cet organe accrochage ne peut tre assemblé à la tte de clapet qu'in situ, après mise en place de ces deux pièces de part et d'autre du siège de clapet. In addition, the latching member has (like the valve head) a wider part than the valve seat, so that this latching member can only be assembled to the valve head in situ, after being put in place. place these two parts on either side of the valve seat.
Par conséquent, le processus de montage de l'ensemble du filtre est rendu complexe et coûteux, d'autant plus que l'assemblage entre à la tte de clapet et l'organe d'accrochage doit tre solide et parfaitement fiable : en cas de détachement de ces deux pièces, la soupape de décharge resterait ouverte en permanence, et le filtre ne remplirait plus du tout sa fonction de filtration, ce qui aurait des conséquences désastreuses pour le moteur à combustion interne.Consequently, the assembly process of the filter assembly is made complex and costly, all the more so since the assembly enters the valve head and the attachment member must be solid and perfectly reliable: in the event of detachment of these two parts, the relief valve would remain permanently open, and the filter would no longer fulfill its filtration function at all, which would have disastrous consequences for the internal combustion engine.
La présente invention a notamment pour but de pallier ces inconvénients. The present invention aims in particular to overcome these drawbacks.
A cet effet, selon l'invention, un filtre du genre en question est essentiellement caractérisé en ce que le clapet obturateur est monobloc et comprend un noyau rigide moulé en matière plastique, qui inclut à la fois la tte de clapet et une tige centrale plus étroite que le siège de clapet, cette tige centrale formant ledit organe d'ac- crochage, et la garniture d'étanchéité étant surmoulée sur la tte de clapet. To this end, according to the invention, a filter of the kind in question is essentially characterized in that the shutter valve is in one piece and comprises a rigid molded plastic core, which includes both the valve head and a central rod more as narrow as the valve seat, this central rod forming said latching member, and the seal being overmolded on the valve head.
Grâce à ces dispositions, l'organe de clapet est moins coûteux et plus simple que dans l'art antérieur, et sa mise en place dans le filtre est également simplifiée. Thanks to these provisions, the valve member is less expensive and simpler than in the prior art, and its installation in the filter is also simplified.
De plus, l'invention permet également de rendre entièrement recyclable l'organe de clapet, puisque celui-ci ne comprend plus de partie métallique.In addition, the invention also makes it possible to make the valve member fully recyclable, since the latter no longer comprises a metal part.
Dans des modes de réalisation préférés de l'inven- tion, on peut éventuellement avoir recours en outre à l'une et/ou à l'autre des dispositions suivantes :
-la tte de clapet présente deux faces orientées l'une vers le siège de clapet et l'autre à l'opposé du siège de clapet, et la garniture d'étanchéité comprend deux parties s'étendant respectivement sur ces deux faces de part et d'autre de la tte de clapet, ces deux parties étant reliées l'une à l'autre sans discontinuité de ma tière ;
-les deux parties de la garniture d'étanchéité sont reliées l'une à l'autre par des ponts de matière qui remplissent des trous traversant la tte de clapet entre ses deux faces ;
-le ressort est accroché à la tige centrale du clapet obturateur par un montage à baïonnette ;
-la tige centrale du clapet obturateur comporte une extrémité libre présentant une fente centrale qui s'étend axialement vers la tte de clapet, cette fente centrale étant prolongée par une fente latérale qui ellemme communique avec une échancrure s'étendant axialement vers l'extrémité libre de la tige centrale, et le ressort comportant une branche qui est engagée dans ladite échan- crure pour solliciter l'extrémité libre de la tige centrale à l'opposé du siège de clapet ;
-lwéchancrure et la fente centrale s'étendent dans deux plans axiaux non parallèles ;
-la garniture d'étanchéité est en élastomère de polyester thermoplastique ;
-le siège de clapet appartient à un support qui est rapporté sur un couvercle fermant le boîtier du filtre.In preferred embodiments of the invention, it is possible optionally to have recourse to one and / or the other of the following arrangements:
the valve head has two faces, one facing the valve seat and the other opposite the valve seat, and the seal comprises two parts extending respectively on these two sides from the side and on the other side of the valve head, these two parts being connected to each other without discontinuity of my material;
the two parts of the seal are connected to each other by bridges of material which fill holes passing through the valve head between its two faces;
the spring is hooked to the central rod of the shutter valve by a bayonet mounting;
the central rod of the shutter valve has a free end having a central slot which extends axially towards the valve head, this central slot being extended by a lateral slot which itself communicates with a notch extending axially towards the free end of the central rod, and the spring comprising a branch which is engaged in said notch to urge the free end of the central rod opposite the valve seat;
the notch and the central slot extend in two non-parallel axial planes;
the seal is made of thermoplastic polyester elastomer;
-the valve seat belongs to a support which is attached to a cover closing the filter housing.
D'autres caractéristiques et avantages de l'inven- tion apparaîtront au cours de la description suivante d'une de ses formes de réalisation, donnée à titre d'exem- ple non limitatif, en regard des dessins joints. Other characteristics and advantages of the invention will appear during the following description of one of its embodiments, given by way of non-limiting example, with reference to the accompanying drawings.
Sur les dessins :
-la figure 1 est une vue en coupe axiale d'un filtre à huile selon une forme de réalisation de l'inven- tion,
-la figure 2 est une vue de côté du clapet obturateur appartenant à la soupape de décharge du filtre de la figure 1,
-et la figure 3 est une vue en perspective du clapet obturateur de la figure 2.In the drawings:
FIG. 1 is a view in axial section of an oil filter according to an embodiment of the invention,
FIG. 2 is a side view of the shutter valve belonging to the filter relief valve of FIG. 1,
and FIG. 3 is a perspective view of the shutter valve of FIG. 2.
Sur les différentes figures, les mmes références désignent des éléments identiques ou similaires. In the various figures, the same references designate identical or similar elements.
Le filtre à huile représenté sur la figure 1 est délimité extérieurement par un boîtier 1 qui présente une forme générale cylindrique de révolution autour d'un axe central X et qui est réalisé par exemple en matière plastique. The oil filter shown in Figure 1 is delimited externally by a housing 1 which has a generally cylindrical shape of revolution around a central axis X and which is made for example of plastic.
Le boîtier 1 comprend une embase 2 qui est destinée à tre fixée sur le carter du moteur à combustion interne d'un véhicule automobile, au moyen d'un embout central fileté 3 qui est centré sur l'axe X et qui forme la sortie d'huile du filtre. The housing 1 comprises a base 2 which is intended to be fixed to the casing of the internal combustion engine of a motor vehicle, by means of a threaded central end piece 3 which is centered on the axis X and which forms the outlet d filter oil.
Dans l'exemple considéré ici, l'embout fileté 3 est formé par une armature métallique 4 qui est noyée dans la matière plastique de l'embase 2. In the example considered here, the threaded end piece 3 is formed by a metal frame 4 which is embedded in the plastic material of the base 2.
Par ailleurs, l'embase 2 comporte une pluralité de trous axiaux 5 qui sont disposés autour de la sortie d'huile 3 et qui constituent l'entrée d'huile du filtre. Furthermore, the base 2 has a plurality of axial holes 5 which are arranged around the oil outlet 3 and which constitute the oil inlet of the filter.
Ces trous axiaux 5 sont recouverts, vers l'intérieur du filtre, par un clapet d'entrée annulaire 6 en élastomère, adapté pour empcher un reflux d'huile par les trous 5. These axial holes 5 are covered, towards the inside of the filter, by an annular elastomeric inlet valve 6, adapted to prevent an oil reflux through the holes 5.
L'embase 2 se prolonge axialement par une paroi latérale filetée 7, dans laquelle se visse la paroi latérale filetée 8 d'un couvercle 9. The base 2 is extended axially by a threaded side wall 7, into which the threaded side wall 8 of a cover 9 is screwed.
Ce couvercle 9 délimite, avec l'embase 2, une cuve 10 qui reçoit un élément filtrant 11 présentant une forme annulaire de révolution centrée sur l'axe X. This cover 9 defines, with the base 2, a tank 10 which receives a filter element 11 having an annular shape of revolution centered on the axis X.
L'élément filtrant 11, qui est classiquement réalisé en papier filtre plissé ou similaire, est maintenu intérieurement par une armature ajourée 12 réalisée par exemple en matière plastique. De plus, l'élément filtrant 11 présente à ses deux extrémités des flasques annulaires 13, réalisés de préférence en matériau synthétique et surmoulés aux extrémités dudit élément filtrant. The filter element 11, which is conventionally made of pleated filter paper or the like, is held internally by an openwork frame 12 made for example of plastic. In addition, the filter element 11 has at its two ends annular flanges 13, preferably made of synthetic material and molded at the ends of said filter element.
Le flasque 13 situé près de l'embase 2 est emboîté avec étanchéité sur un embout 14 qui communique avec la sortie d'huile 3, tandis que le flasque 13 situé près de la paroi d'extrémité 15 du couvercle 9 est emboîté avec étanchéité sur un godet 16 en matière plastique. The flange 13 located near the base 2 is fitted with sealing on a nozzle 14 which communicates with the oil outlet 3, while the flange 13 located near the end wall 15 of the cover 9 is fitted with sealing on a plastic cup 16.
Ce godet 16 obture le flasque 13 correspondant, de sorte que l'élément filtrant 11 est interposé avec étan chéité entre l'entrée 5 et la sortie 3 d'huile, en obligeant ainsi tout de débit d'huile à traverser l'élément filtrant 11 pour passer de l'entrée 5 à la sortie 3 du filtre. Le godet 16 est fixé à la paroi d'extrémité 15 du couvercle 9, de préférence par clipsage, au moyen de crochets élastiques 17 qui s'étendent axialement à partir de la paroi d'extrémité 15 vers l'intérieur du filtre et qui s'engagent dans des évidements 18 ménagés en partie supérieure du godet 16. This cup 16 closes the corresponding flange 13, so that the filter element 11 is interposed with seal between the inlet 5 and the outlet 3 of oil, thus forcing all oil flow through the filter element 11 to go from input 5 to output 3 of the filter. The cup 16 is fixed to the end wall 15 of the cover 9, preferably by clipping, by means of elastic hooks 17 which extend axially from the end wall 15 towards the inside of the filter and which s 'engage in recesses 18 formed in the upper part of the bucket 16.
De plus, le godet 16 délimite intérieurement un passage 19 formant un by-pass qui peut faire communiquer directement l'entrée 5 et la sortie 3 du filtre, par l'in- termédiaire de trous 20 percés axialement dans le fond 21 du godet 16 autour d'un passage central 22. In addition, the bucket 16 internally delimits a passage 19 forming a by-pass which can directly communicate the inlet 5 and the outlet 3 of the filter, by means of holes 20 drilled axially in the bottom 21 of the bucket 16 around a central passage 22.
Le by-pass 19 est normalement maintenu fermé par une soupape de décharge 23, qui est adaptée pour s'ouvrir uniquement lorsqu'il règne entre l'entrée 5 et la sortie 3 du filtre une différence de pression d'huile supérieure à une valeur prédéterminée, correspondant à un fort encrassement de l'élément filtrant 11. The bypass 19 is normally kept closed by a relief valve 23, which is adapted to open only when there is between the inlet 5 and the outlet 3 of the filter a difference in oil pressure greater than a value predetermined, corresponding to strong fouling of the filter element 11.
Cette soupape de décharge 23 comprend un siège de clapet constitué par le fond 21 du godet 16, doté d'une nervure annulaire 24 formée en périphérie dudit fond 21, sur la face de ce fond 21 qui est tournée vers la sortie d'huile 3. This relief valve 23 comprises a valve seat constituted by the bottom 21 of the bucket 16, provided with an annular rib 24 formed on the periphery of said bottom 21, on the face of this bottom 21 which faces the oil outlet 3 .
Le siège de clapet 24 coopère avec un clapet obturateur 25 monobloc et moulé en matière synthétique, bien visible sur les figures 1 à 3. The valve seat 24 cooperates with a one-piece shutter valve 25 molded in synthetic material, clearly visible in FIGS. 1 to 3.
Ce clapet obturateur 25 comprend :
-un noyau rigide moulé en matière plastique, qui inclut, d'une part, une tte de clapet 26 présentant sensiblement la mme largeur que le fond 21 du godet 16 et disposée sous le siège de clapet 24, et d'autre part, une tige centrale 27 qui s'étend axialement à partir de la tte 26 vers la paroi d'extrémité 15 du couvercle 9 en traversant le passage central 22 du fond du godet 16,
-et une garniture d'étanchéité 28 en élastomère qui est surmoulée sur la tte de clapet 26 et qui vient en contact étanche avec le siège de clapet 24 pour fermer le by-pass 19.This shutter valve 25 includes:
a rigid core molded from plastic, which includes, on the one hand, a valve head 26 having substantially the same width as the bottom 21 of the bucket 16 and disposed under the valve seat 24, and on the other hand, a central rod 27 which extends axially from the head 26 towards the end wall 15 of the cover 9 by crossing the central passage 22 from the bottom of the bucket 16,
and a seal 28 made of elastomer which is overmolded on the valve head 26 and which comes into leaktight contact with the valve seat 24 to close the bypass 19.
Avantageusement, la garniture d'étanchéité 28 peut tre réalisée en élastomère de polyester thermoplastique, par exemple celui commercialisé par la Société DUPONT DE
NEMOURS sous la marque"HYTREL 5556".Advantageously, the seal 28 can be made of a thermoplastic polyester elastomer, for example that sold by the company DUPONT DE
NEMOURS under the brand name "HYTREL 5556".
De préférence, afin de garantir une solidarisation durable de la garniture d'étanchéité 28 avec la tte de clapet 26, cette garniture recouvre au moins partiellement les deux faces opposées 29,30 de la tte de clapet 26, sans discontinuité de matière entre les parties de la garniture d'étanchéité 28 qui recouvrent respectivement chacune de ses faces (voir figures 1 et 2). Preferably, in order to guarantee a lasting connection of the seal 28 with the valve head 26, this seal at least partially covers the two opposite faces 29, 30 of the valve head 26, without discontinuity of material between the parts of the seal 28 which respectively cover each of its faces (see Figures 1 and 2).
A cet effet, la tte de clapet 26 peut par exemple tre percée de trous axiaux 31 qui sont remplis par le ma tériau élastomère de la garniture d'étanchéité 28 lors de son surmoulage sur le noyau rigide (voir figure 1). To this end, the valve head 26 can for example be pierced with axial holes 31 which are filled with the elastomeric material of the seal 28 during its overmolding on the rigid core (see FIG. 1).
Par ailleurs, comme représenté sur la figure 1, un ressort de compression 32 est disposé à l'intérieur du godet 16 et prend appui sur le fond 21 de ce godet pour solliciter le clapet obturateur 25 vers sa position de fermeture. Furthermore, as shown in FIG. 1, a compression spring 32 is disposed inside the cup 16 and bears on the bottom 21 of this cup to urge the shutter valve 25 towards its closed position.
A cet effet, la branche"supérieure"33 du ressort est accrochée à l'extrémité libre de la tige centrale 27 du clapet obturateur, de préférence par un montage à baïonnette. To this end, the "upper" branch 33 of the spring is hooked to the free end of the central rod 27 of the shutter valve, preferably by a bayonet mount.
Avantageusement, ce montage à baïonnette est obtenu au moyen d'une fente centrale 34 qui s'étend axialement à partir de l'extrémité libre de la tige 27 du clapet obturateur, en direction de la tte de clapet 26. Advantageously, this bayonet mounting is obtained by means of a central slot 34 which extends axially from the free end of the rod 27 of the shutter valve, in the direction of the valve head 26.
A son extrémité la plus proche de la tte de clapet 26, cette fente axiale 34 communique avec une fente latérale 35 qui s'étend perpendiculairement à l'axe X et qui elle-mme communique avec une échancrure 36 s'étendant sur une faible distance vers l'extrémité libre de la tige 27. At its end closest to the valve head 26, this axial slot 34 communicates with a lateral slot 35 which extends perpendicular to the axis X and which itself communicates with a notch 36 extending over a short distance towards the free end of the rod 27.
L'échancrure 36 s'étend dans un plan axial, c'està-dire un plan qui contient l'axe X, mais qui n'est pas parallèle au plan axial de la fente centrale 34. The notch 36 extends in an axial plane, that is to say a plane which contains the axis X, but which is not parallel to the axial plane of the central slot 34.
Ainsi, pour accrocher la branche 33 du ressort à l'extrémité libre de la tige 27, on engage d'abord cette branche 33 dans la fente centrale 34 en comprimant le ressort 32, puis on effectue une légère rotation du clapet obturateur 25 de façon que ladite branche 33 du ressort passe dans la fente latérale 35 puis s'engage dans 1'échancrure 36, après quoi ladite branche 33 du ressort est définitivement accrochée à la tige 27. Thus, to hook the branch 33 of the spring to the free end of the rod 27, this branch 33 is first engaged in the central slot 34 by compressing the spring 32, then a slight rotation of the shutter valve 25 is carried out so that said branch 33 of the spring passes through the lateral slot 35 and then engages in the notch 36, after which said branch 33 of the spring is definitively attached to the rod 27.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9812868A FR2784598B1 (en) | 1998-10-14 | 1998-10-14 | LIQUID FILTER FOR INTERNAL COMBUSTION ENGINE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9812868A FR2784598B1 (en) | 1998-10-14 | 1998-10-14 | LIQUID FILTER FOR INTERNAL COMBUSTION ENGINE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2784598A1 true FR2784598A1 (en) | 2000-04-21 |
| FR2784598B1 FR2784598B1 (en) | 2000-12-15 |
Family
ID=9531544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9812868A Expired - Lifetime FR2784598B1 (en) | 1998-10-14 | 1998-10-14 | LIQUID FILTER FOR INTERNAL COMBUSTION ENGINE |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2784598B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2799661A1 (en) * | 1999-10-18 | 2001-04-20 | Filtrauto | FILTER HOUSING WITH SNAP-ON LID |
| WO2006120244A2 (en) * | 2005-05-13 | 2006-11-16 | Mann+Hummel Gmbh | Filtering system, in particular for filtering liquids in internal combustion engines |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015002173B4 (en) | 2015-02-24 | 2018-10-04 | Mann+Hummel Gmbh | flow valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4142973A (en) * | 1977-02-17 | 1979-03-06 | Facet Enterprises, Inc. | Valve with indicator circuit |
| US4657040A (en) * | 1985-11-25 | 1987-04-14 | Hr Textron Inc. | Bypass reverse flow valve |
| DE3903675A1 (en) * | 1989-02-08 | 1990-08-09 | Knecht Filterwerke Gmbh | Oil filter for cleaning lubrication oil |
| US5062452A (en) * | 1990-11-21 | 1991-11-05 | Harrisburg, Inc. | Valve member and method of making such a member |
| US5345965A (en) * | 1993-05-21 | 1994-09-13 | Blume George H | Valve body design for use with pumps handling abrasive fluids |
-
1998
- 1998-10-14 FR FR9812868A patent/FR2784598B1/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4142973A (en) * | 1977-02-17 | 1979-03-06 | Facet Enterprises, Inc. | Valve with indicator circuit |
| US4657040A (en) * | 1985-11-25 | 1987-04-14 | Hr Textron Inc. | Bypass reverse flow valve |
| DE3903675A1 (en) * | 1989-02-08 | 1990-08-09 | Knecht Filterwerke Gmbh | Oil filter for cleaning lubrication oil |
| US5062452A (en) * | 1990-11-21 | 1991-11-05 | Harrisburg, Inc. | Valve member and method of making such a member |
| US5345965A (en) * | 1993-05-21 | 1994-09-13 | Blume George H | Valve body design for use with pumps handling abrasive fluids |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2799661A1 (en) * | 1999-10-18 | 2001-04-20 | Filtrauto | FILTER HOUSING WITH SNAP-ON LID |
| EP1093839A1 (en) * | 1999-10-18 | 2001-04-25 | Filtrauto | Filter housing having a snap-on filter lid |
| WO2006120244A2 (en) * | 2005-05-13 | 2006-11-16 | Mann+Hummel Gmbh | Filtering system, in particular for filtering liquids in internal combustion engines |
| WO2006120244A3 (en) * | 2005-05-13 | 2007-07-26 | Mann & Hummel Gmbh | FILTER DEVICE, IN PARTICULAR FOR FILTERING LIQUIDS IN INTERNAL COMBUSTION ENGINES |
| CN101227960B (en) * | 2005-05-13 | 2011-04-13 | 曼·胡默尔有限公司 | Filtering device for filtering liquids in internal combustion engines |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2784598B1 (en) | 2000-12-15 |
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