EP2808531B1 - Kraftstoffpumpenmodul - Google Patents
Kraftstoffpumpenmodul Download PDFInfo
- Publication number
- EP2808531B1 EP2808531B1 EP14168340.9A EP14168340A EP2808531B1 EP 2808531 B1 EP2808531 B1 EP 2808531B1 EP 14168340 A EP14168340 A EP 14168340A EP 2808531 B1 EP2808531 B1 EP 2808531B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shut
- spring
- core
- module
- seat
- 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.)
- Not-in-force
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Classifications
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- 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
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
- F02M37/0029—Pressure regulator in the low pressure fuel system
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- 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
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
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- 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
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
- F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
- F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
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- 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
- F02M37/04—Feeding by means of driven pumps
- F02M37/14—Feeding by means of driven pumps the pumps being combined with other apparatus
Definitions
- the present invention relates to the fuel pump module of a vehicle and more particularly to the pressure limiter which equips such a module.
- a pump draws fuel at atmospheric pressure and sends it compressed to the vehicle engine injection system.
- the pump is arranged in a pumping module.
- the output of the pump is connected to a high pressure line and a pressure regulator whose simple version is a normally closed pressure limiter.
- the limiter opens and allows some of the fuel to return to the tank and thus keep the fuel in the injection system under a limit value pressure.
- Conventional pressure limiters have a calibrated spring that holds a ball against a conical valve seat in the center of which opens a return channel to the reservoir. When the fuel pressure exceeds the predetermined limit, the fuel pushes the ball that compresses the spring and some of the fuel can be discharged to the tank.
- the "start-stop" systems by which the engine stops completely when the vehicle is stationary and which equips the new diesel vehicles cause much more frequent pressure variations and the limiter must open each time the engine is started. .
- the simple ball and spring limiter is no longer suitable because mechanically too unstable. Indeed, rather than linearly moving along the compression axis of the spring, the limiter can also undergo radial oscillations, torsional movements of the spring or any other combination of which interfere with the optimal operation and generate noise.
- the present invention aims to remedy the disadvantages mentioned above by proposing a simple and economical solution.
- the invention provides a fuel pump module for a vehicle comprising a body defining a low pressure space in which is arranged a pump at the outlet of which is placed a pressure limiter.
- the pressure limiter comprises a tubular body extending along a main axis between a front end, which is arranged a valve seat in the center of which opens a fuel return channel, and a rear remote end, the limiter further comprising a core provided with a shutter member arranged sliding in the tubular body between a closed position, in which its front face is in complementary support against the seat closing the return channel and, an open position in which its front face is away from the seat allowing the evacuation of a portion of the fuel to the low pressure space.
- the core is further provided with an elastic member permanently urging the shutter member to the closed position.
- Said front face of the shutter member is a flat disc surface.
- an elastomeric seal, disc, or O-ring may be interposed between said disc front face and the limiter seat.
- the elastic element is a helical spring axially compressed between the rear face of the shutter element, face opposite said front face, and the rear end of the tubular body.
- the obturator member is fixed to one end of the spring by means of a protuberance provided on its rear face and allowing a complementary engagement with the last turn of the spring so as to fix the shutter member to the spring.
- the protuberance may be a cylinder wall.
- the core may comprise another end member arranged opposite the obturator member, between the rear end of the body and the spring.
- the obturator member and said other end member are identical and symmetrically arranged and held at opposite ends of the spring so that the core formed by the spring, the obturator member and said other end member is symmetrical which can to be arranged in the tubular body so that any one of the two members cooperates with the seat.
- said rear end is provided with a rear opening through which the core can be inserted.
- the limiter is then provided with at least one flexible arm, but more generally a plurality, extending from the periphery of the rear opening towards the front end of the body to a free end.
- the arm moves radially away when the core is inserted and resiliently folds behind the core when fully inserted so that the core is held in a closed position between the shutter member resting against the seat and said other member. end against which the arm is braced, the spring being compressed.
- tubular body is made of molded plastic material with the body of the module.
- a fuel pumping module 10 is shown on the figure 1 . It is intended to be arranged in the tank of a vehicle and bathe in the fuel C.
- the module comprises a control electronics placed in a waterproof housing arranged above a lower part comprising a bowl 12 in molded plastic closed by a lid 14 also of molded plastic.
- the inside of the bowl 12 defines a low pressure space 16 in which is arranged a pump which on the one hand sucks the fuel C at atmospheric pressure, the low pressure, to send it at high pressure to the injection system of the vehicle engine.
- a rocker and float level device is arranged to determine the amount of fuel C remaining in the tank.
- the high pressure fuel C leaves the bowl 12 via a high pressure line 18 which passes through the lid 14.
- the tubular connections of the high pressure line 18 are integral with the lid 14.
- the module 10 further comprises a pressure limiter 20 arranged, in the example chosen to illustrate this description, in the thickness of the lid 14.
- the limiter 20 comprises a tubular body 22 extending along a main axis A substantially perpendicular to the high pressure line 18 between a front end 24, which is arranged a valve seat 26, and a rear end 28 remote from the high pressure line 18.
- the seat 26 is a complementary surface such for example a toric surface or a flat surface annular transverse to the main axis A.
- a return pipe 30 extends between the high pressure pipe 18 and the first end 24 of the body 22 where it opens at the center of the seat 26. Between the two ends 24, 28, the body 22 is perforated 32 inwards and outwards of the bowl 12.
- the rear end 28 of the body 22 is provided with a circular rear opening 34 around which extend towards the first end 24 and in a slightly centripetal manner, elongate and flexible arms 36. While extending, the arms 36 are slightly closer to the main axis A. They are provided at their free end endings 38 forming an imaged manner, a hand at almost right angle with the arm extended, the palm being oriented towards forward. As visible on the Figures 3 and 4 , the body 22 and the arms 36 are molded plastic integrally with the lid 14.
- the limiter 20 also comprises a mobile core as detailed on the figure 2 .
- the core comprises a helical compression spring 40 provided at each end thereof with a tip 42.
- the end pieces 42 are strictly identical and, as such, marked with the same reference numeral 42. They are made of plastic molded, they have a flat disc face 44 provided on one side with a cylindrical portion 46 of axis perpendicular to the disc face 44.
- the cylindrical portion 46 has substantially the inner diameter of the spring 40 so that each endpiece 42 can be maintained at one end of the spring 40 by inserting its cylindrical portion 46 in the last turn of the spring 40.
- the assembly of the spring 40 and the two ends 42 forms a perfectly symmetrical core 48. Many alternatives can easily be developed as to the mode of attachment of the ends and the spring.
- the cylindrical portion could be wider to receive the spring.
- the choice to achieve a symmetrical assembly has advantages that will be explained further, but nothing prevents to equip the spring of different tips, even a single tip.
- the seal may for example be a flat seal or an O-ring.
- the symmetrical core 48 is placed in the body 22 after having inserted axially A through the rear opening 34.
- the arms 36 have slightly deformed by moving apart to let the core 48 This is inserted until the tip 42 located at the front comes into complementary contact with the seat 26 and is then blocked.
- the front end 42 is a shutter member of the return channel 30.
- the insertion is continued by compressing the spring 40 until the tip 42 located at the rear has passed the free ends of the arms 36 and that the arms 36 elastically resume their free form and that the endings 38 are placed against the disc face 44 of the rear end 42.
- the endings 38 here before the "hands" provide a stable support against the rear face 44 and for this purpose can be made in various forms such as the corner, the T or other. Moreover, the great advantage of producing a symmetrical core 48 appears immediately since it can be inserted indifferently into the body 22 without the need for any identification or keying system.
- the spring 40 is compressed between the disc face 44 which is further pressed against the seat 26 and which thus closes the return channel 30, and the rear disc face 44 against which the arms 36 are braced.
- the compression of the spring 40 creates a bearing force F1 of the tip 42 before the seat 26.
- the fuel C flows in the high pressure line 18 it exerts on the tip 42 before a force F2 opposing that 4.
- the limiter 20 is held in the closed position PF.
- the force F2 that it exerts on the front end 42 vain F1 force exerted by the spring 40 so that the spring 40 is compressed and that the front end 42 is pushed back as according to the figure 7 and move away from the seat 26.
- the limiter 20 is then in the open position PO and fuel C under pressure can then escape by flowing through the return channel 30 and back into the low pressure space 16 by passing through the openings 32 of the body 22 of the limiter 20.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
La présente invention est relative au module de pompage de carburant d'un véhicule et plus particulièrement au limiteur de pression qui équipe un tel module.The present invention relates to the fuel pump module of a vehicle and more particularly to the pressure limiter which equips such a module.
Dans le réservoir à carburant d'un véhicule, une pompe aspire le carburant à pression atmosphérique et l'envoi comprimé vers le système d'injection du moteur du véhicule. La pompe est agencée dans un module de pompage. La sortie de la pompe est connectée à une canalisation haute pression et un régulateur de pression dont la version simple est un limiteur de pression normalement fermé. Sous l'effet d'une pression trop élevée dans la canalisation haute pression, le limiteur s'ouvre et permet à une partie du carburant de retourner vers le réservoir et, ainsi de maintenir le carburant dans le système d'injection sous une valeur limite de pression. Les limiteurs de pressions classiques ont un ressort taré qui maintient une bille contre un siège de vanne conique au centre duquel débouche un canal de retour vers le réservoir. Lorsque la pression du carburant dépasse la limite prédéterminée, le carburant repousse la bille qui comprime le ressort et une partie du carburant peut ainsi être évacué vers le réservoir. Les systèmes « start-stop » grâce auquel le moteur s'arrête complètement lorsque le véhicule est à l'arrêt et qui équipent les nouveaux véhicules diesel entrainent des variations de pressions beaucoup plus fréquentes et le limiteur doit s'ouvrir à chaque démarrage du moteur. Le simple limiteur à bille et ressort ne convient plus car mécaniquement trop instable. Effectivement, plutôt que de se déplacer linéairement selon l'axe de compression du ressort, le limiteur peut également subir des oscillations radiales, des mouvements de torsion du ressort ou tout autres combinaisons de qui perturbent le fonctionnement optimal et génèrent du bruit.In the fuel tank of a vehicle, a pump draws fuel at atmospheric pressure and sends it compressed to the vehicle engine injection system. The pump is arranged in a pumping module. The output of the pump is connected to a high pressure line and a pressure regulator whose simple version is a normally closed pressure limiter. Under the effect of too high pressure in the high pressure line, the limiter opens and allows some of the fuel to return to the tank and thus keep the fuel in the injection system under a limit value pressure. Conventional pressure limiters have a calibrated spring that holds a ball against a conical valve seat in the center of which opens a return channel to the reservoir. When the fuel pressure exceeds the predetermined limit, the fuel pushes the ball that compresses the spring and some of the fuel can be discharged to the tank. The "start-stop" systems by which the engine stops completely when the vehicle is stationary and which equips the new diesel vehicles cause much more frequent pressure variations and the limiter must open each time the engine is started. . The simple ball and spring limiter is no longer suitable because mechanically too unstable. Indeed, rather than linearly moving along the compression axis of the spring, the limiter can also undergo radial oscillations, torsional movements of the spring or any other combination of which interfere with the optimal operation and generate noise.
La présente invention vise à remédier aux inconvénients mentionnés précédemment en proposant une solution simple et économique.The present invention aims to remedy the disadvantages mentioned above by proposing a simple and economical solution.
Dans ce but, l'invention propose un module de pompage de carburant pour véhicule comprenant un corps, définissant un espace basse pression dans lequel est agencée une pompe à la sortie de laquelle est placé un limiteur de pression. Le limiteur de pression comprend un corps tubulaire s'étendant selon un axe principal entre une extrémité avant, où est agencé un siège de vanne au centre duquel débouche un canal de retour du carburant, et une extrémité arrière distante, le limiteur comprenant de plus un noyau pourvu d'un membre obturateur agencé coulissant dans le corps tubulaire entre une position fermée, dans laquelle sa face avant est en appui complémentaire contre le siège obturant le canal de retour et, une position ouverte dans laquelle sa face avant est éloignée du siège permettant l'évacuation d'une partie du carburant vers l'espace basse pression. Le noyau est de plus pourvu d'un membre élastique sollicitant en permanence le membre obturateur vers la position fermée. Ladite face avant du membre obturateur est une surface discale plane. Dans une alternative un joint en élastomère, un disque, ou un joint torique, peut être intercalé entre ladite face avant discale et le siège du limiteur.For this purpose, the invention provides a fuel pump module for a vehicle comprising a body defining a low pressure space in which is arranged a pump at the outlet of which is placed a pressure limiter. The pressure limiter comprises a tubular body extending along a main axis between a front end, which is arranged a valve seat in the center of which opens a fuel return channel, and a rear remote end, the limiter further comprising a core provided with a shutter member arranged sliding in the tubular body between a closed position, in which its front face is in complementary support against the seat closing the return channel and, an open position in which its front face is away from the seat allowing the evacuation of a portion of the fuel to the low pressure space. The core is further provided with an elastic member permanently urging the shutter member to the closed position. Said front face of the shutter member is a flat disc surface. Alternatively, an elastomeric seal, disc, or O-ring may be interposed between said disc front face and the limiter seat.
De plus l'élément élastique est un ressort hélicoïdal axialement comprimé entre la face arrière de l'élément obturateur, face opposée à ladite face avant, et l'extrémité arrière du corps tubulaire.In addition, the elastic element is a helical spring axially compressed between the rear face of the shutter element, face opposite said front face, and the rear end of the tubular body.
Dans une construction particulière le membre obturateur est fixé à une extrémité du ressort au moyen d'une protubérance pourvue sur sa face arrière et permettant un engagement complémentaire avec la dernière spire du ressort de sorte à fixer le membre obturateur au ressort. La protubérance peut être une paroi cylindre.In a particular construction the obturator member is fixed to one end of the spring by means of a protuberance provided on its rear face and allowing a complementary engagement with the last turn of the spring so as to fix the shutter member to the spring. The protuberance may be a cylinder wall.
De plus, le noyau peut comprendre un autre membre d'extrémité agencé à l'opposé du membre obturateur, entre l'extrémité arrière du corps et le ressort.In addition, the core may comprise another end member arranged opposite the obturator member, between the rear end of the body and the spring.
Il est particulièrement avantageux que le membre obturateur et ledit autre membre d'extrémité soient identiques et symétriquement agencés et maintenus aux extrémités opposées du ressort de sorte que le noyau formé par le ressort, le membre obturateur et ledit autre membre d'extrémité soit symétrique pouvant être agencé dans le corps tubulaire de sorte que l'un quelconque des deux membres coopère avec le siège.It is particularly advantageous that the obturator member and said other end member are identical and symmetrically arranged and held at opposite ends of the spring so that the core formed by the spring, the obturator member and said other end member is symmetrical which can to be arranged in the tubular body so that any one of the two members cooperates with the seat.
En outre, ladite extrémité arrière est pourvue d'une ouverture arrière par laquelle peut être inséré le noyau. Le limiteur est alors pourvu d'au moins un bras flexible, mais plus généralement une pluralité, s'étendant depuis le pourtour de l'ouverture arrière en direction de l'extrémité avant du corps jusqu'à une extrémité libre. Le bras s'écarte radialement lorsque le noyau est inséré et se rabat élastiquement derrière le noyau lorsque celui-ci est entièrement inséré de sorte que le noyau est maintenu en position fermée entre le membre obturateur en appui contre le siège et ledit autre membre d'extrémité contre lequel le bras est arc-bouté, le ressort étant comprimé.In addition, said rear end is provided with a rear opening through which the core can be inserted. The limiter is then provided with at least one flexible arm, but more generally a plurality, extending from the periphery of the rear opening towards the front end of the body to a free end. The arm moves radially away when the core is inserted and resiliently folds behind the core when fully inserted so that the core is held in a closed position between the shutter member resting against the seat and said other member. end against which the arm is braced, the spring being compressed.
Plus particulièrement le corps tubulaire est en plastique moulé venu de matière avec le corps du module.More particularly the tubular body is made of molded plastic material with the body of the module.
D'autres caractéristiques, buts et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre, et en regard des dessins annexés, donnés à titre d'exemple non limitatif et sur lesquels:
- la
figure 1 est une vue isométrique d'un module de pompage comprenant un limiteur de pression réalisé selon l'invention. - la
figure 2 est une vue d'un sous ensemble du limiteur de lafigure 1 . - la
figure 3 est une vue du capot du module de lafigure 1 dans lequel est intégré le sous ensemble de lafigure 2 . - la
figure 4 est un détail de lafigure 3 centré sur le limiteur de pression. - la
figure 5 est une vue en coupe du limiteur en cours de montage. - la
figure 6 est une vue en coupe du limiteur en position fermée. - la
figure 7 est une vue en coupe du limiteur en position ouverte.
- the
figure 1 is an isometric view of a pumping module comprising a pressure limiter produced according to the invention. - the
figure 2 is a view of a subset of the limiter of thefigure 1 . - the
figure 3 is a view of the module hood of thefigure 1 in which is integrated the subset of thefigure 2 . - the
figure 4 is a detail of thefigure 3 centered on the pressure limiter. - the
figure 5 is a sectional view of the limiter being mounted. - the
figure 6 is a sectional view of the limiter in the closed position. - the
figure 7 is a sectional view of the limiter in the open position.
Un module de pompage 10 de carburant C est représenté sur la
Le carburant C à haute pression quitte le bol 12 via une canalisation haute pression 18 qui traverse le couvercle 14. Des raccords tubulaires de la canalisation haute pression 18 sont venus de matière avec le couvercle 14.The high pressure fuel C leaves the
Le module 10 comprend de plus un limiteur de pression 20 agencé, dans l'exemple choisi pour illustrer cette description, dans l'épaisseur du couvercle 14. Le limiteur 20 comprend un corps tubulaire 22 s'étendant selon un axe principal A sensiblement perpendiculaire à la canalisation haute pression 18 entre une extrémité avant 24, où est agencé un siège 26 de vanne, et une extrémité arrière 28 distante de la canalisation haute pression 18. Le siège 26 est une surface complémentaire tel par exemple une surface torique ou une surface plane annulaire transversale à l'axe principal A. Une canalisation de retour 30 s'étend entre la canalisation haute pression 18 et la première extrémité 24 du corps 22 où elle débouche au centre du siège 26. Entre les deux extrémités 24, 28, le corps 22 est ajouré 32 tant vers l'intérieur que vers l'extérieur du bol 12. L'extrémité arrière 28 du corps 22 est pourvue d'une ouverture arrière 34 circulaire du pourtour de laquelle s'étendent, en direction de la première extrémité 24 et de manière légèrement centripète, des bras 36 allongés et flexibles. Tout en s'étendant, les bras 36 se rapprochent légèrement de l'axe principal A. Ils sont pourvus à leur extrémité libre de terminaisons 38 formant de manière imagée, une main à angle quasiment droit avec le bras tendu, la paume étant orientée vers l'avant. Tel que visible sur les
Le limiteur 20 comprend également un noyau mobile telle que détaillé sur la
Selon la
Ainsi mis en place dans le corps 22, le ressort 40 est comprimé entre la face discale 44 avant qui est complémentairement appuyée contre le siège 26 et qui obture ainsi le canal de retour 30, et la face discale 44 arrière contre laquelle les bras 36 sont arc-boutés.Thus placed in the
La compression du ressort 40 créée une force d'appui F1 de l'embout 42 avant contre le siège 26. Lorsque le carburant C circule dans la canalisation haute pression 18 il exerce sur l'embout 42 avant une force F2 s'opposant à celle du ressort 4. Tant que la force F2 exercée par le carburant C est inférieure à celle exercée par le ressort 40, tel que selon la
Claims (6)
- Module (10) for pumping fuel (C) for a vehicle, the module (10) comprising a body (12, 14) defining a low-pressure space (16) in which there is arranged a pump at the outlet of which there is placed a pressure limiter (20) itself comprising a tubular body (22) extending along a main axis (A) between a front end (24), where there is arranged a valve seat (26) at the centre of which there emerges a fuel return duct (30), and a remote rear end (28), the limiter (20) moreover comprising a core (48) provided with a shut-off member (42) arranged slideably in the tubular body (22) between a closed position (PF) in which its front face (44) is in complementary bearing engagement against the seat (26) shutting off the return duct (30), and an open position (PO) in which its front face (44) is moved away from the seat (26) allowing some of the fuel (C) to be discharged towards the low-pressure space (16), the core (48) being moveover provided with an elastic member (40) permanently urging the shut-off member (42) towards the closed position (PF), characterized in that
the said front face (44) of the shut-off member (42) is a flat discal surface and in which the elastic element (40) is a helical spring axially compressed between the rear face of the shut-off member (42), i.e. the face opposite the said front face (44), and the rear end (28) of the tubular body (22),
and in which the shut-off member (42) is fixed to one end of the spring (40), the core (48) moreover comprising another end member (42) arranged on the opposite side to the shut-off member (42), between the rear end (28) of the body (22) and the spring (40),
and in which the shut-off member (42) and the said other end member (42) are identical and symmetrically arranged and maintained at the opposite ends of the spring (40) such that the core (48) formed by the spring (40), the shut-off member (42) and the said other end member (42) is symmetrical, being able to be arranged in the tubular body (22) such that either one of the two members (42) cooperates with the seat (26). - Module (10) according to the preceding claim, in which the shut-off member (42) is provided on its rear face with a protuberance (46) allowing a complementary engagement with the last turn of the spring (40) such as to fix the shut-off member (42) to the spring (40).
- Module (10) according to Claim 2, in which the protuberance (46) is a cylindrical wall.
- Module (10) according to any one of the preceding claims, in which the said rear end (28) is provided with a rear opening (34) through which the core (48) can be inserted.
- Module (10) according to Claim 4, in which the limiter (20) is moreover provided with at least one flexible arm (36) extending from the periphery of the rear opening (34) in the direction of the front end (24) of the body as far as a free end (38), the arm (36) moving away radially when the core (48) is inserted and folding back elastically behind the core (48) when it is fully inserted such that the core (48) is maintained in the closed position (PF) between the shut-off member (42) bearing against the seat (26) and the said other end member (42) against which the arm (36) is braced, the spring (40) being compressed.
- Module (10) according to any one of the preceding claims, in which the tubular body (22) is made of moulded plastic in one piece with the body (14) of the module.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1354799A FR3006383B1 (en) | 2013-05-28 | 2013-05-28 | FUEL PUMPING MODULE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2808531A1 EP2808531A1 (en) | 2014-12-03 |
EP2808531B1 true EP2808531B1 (en) | 2016-04-06 |
Family
ID=48746055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14168340.9A Not-in-force EP2808531B1 (en) | 2013-05-28 | 2014-05-14 | Kraftstoffpumpenmodul |
Country Status (2)
Country | Link |
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EP (1) | EP2808531B1 (en) |
FR (1) | FR3006383B1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59150967A (en) * | 1983-02-18 | 1984-08-29 | Automob Antipollut & Saf Res Center | Fuel pumping device |
JP2005147037A (en) * | 2003-11-18 | 2005-06-09 | Denso Corp | Pressure control device and fuel supply device using the same |
JP5276868B2 (en) * | 2008-03-26 | 2013-08-28 | 株式会社ケーヒン | Fuel supply module |
JP5071364B2 (en) * | 2008-12-11 | 2012-11-14 | 株式会社デンソー | Fuel supply device |
DE102009017983A1 (en) * | 2009-04-21 | 2010-10-28 | Volkswagen Ag | Pressure relief valve for fuel supply system of motor vehicle, has valve body subjected with resetting force and comprising three guiding lips axially rising into inlet channel and radially arranged to center axis of valve body |
-
2013
- 2013-05-28 FR FR1354799A patent/FR3006383B1/en not_active Expired - Fee Related
-
2014
- 2014-05-14 EP EP14168340.9A patent/EP2808531B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
FR3006383A1 (en) | 2014-12-05 |
FR3006383B1 (en) | 2016-09-09 |
EP2808531A1 (en) | 2014-12-03 |
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