EP1375901B1 - Method for assembling an electric pump and vibration damper for such a device - Google Patents
Method for assembling an electric pump and vibration damper for such a device Download PDFInfo
- Publication number
- EP1375901B1 EP1375901B1 EP03291331A EP03291331A EP1375901B1 EP 1375901 B1 EP1375901 B1 EP 1375901B1 EP 03291331 A EP03291331 A EP 03291331A EP 03291331 A EP03291331 A EP 03291331A EP 1375901 B1 EP1375901 B1 EP 1375901B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- cage
- fact
- tubular element
- damper
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000446 fuel Substances 0.000 claims description 14
- 238000013016 damping Methods 0.000 claims description 13
- 210000000056 organ Anatomy 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims 2
- 208000031968 Cadaver Diseases 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- 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
- F02M37/103—Mounting pumps on fuel tanks
-
- 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
- F02M37/44—Filters structurally associated with pumps
-
- 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
- F02M37/50—Filters arranged in or on fuel tanks
Definitions
- the present invention relates to a method of assembling a electric pump, in particular an electric fuel pump, a vibration damper for such a pump, and a pump obtained by this method.
- Such a fuel pump is in particular used in motor vehicles and is manufactured to be installed in a trap fuel disposed within a fuel tank.
- the pump itself comprises a pump body provided with an orifice suction, discharge port, and electrical terminals for its power supply.
- This pump body is at one of its ends connected to a strainer that communicates with the suction port.
- a housing is arranged around the pump body and serves to protect it and connect it to a fuel trap.
- a semi-rigid plastic cage is arranged on the pump body before mounting the housing on it.
- This cage has all its periphery of the regularly spaced longitudinal lumens. Thanks to this specific geometry, the transmission of vibrations is found scaled down. Moreover, this cage is also used for fixing the strainer on this set.
- EP 0.773.362 discloses such a set of pumping.
- the object of the invention is to remedy the drawbacks mentioned above by proposing a method of assembling a fuel pump which leads to a pump whose vibration damping device is extremely simple, reliable and effective, and that in addition is not cumbersome.
- This process is characterized by the fact that after phase c) and before phase d), there is a tubular vibration damping element on said cage, said tubular element further constituting an organ of single connection between said cage and said pump housing.
- Another object of the invention is a vibration damper for electric pump obtained by the process defined above and comprising a pump body around which is disposed a cage.
- This damper is characterized by the fact that it comprises an elastic tubular element having on its inner face protuberances capable of cooperating with lights provided in said cage so as to constitute means for locking in rotation of said tubular element with respect to said cage.
- Yet another object of the invention is an electric pump with fuel obtained according to the process of the invention.
- Yet another object of the invention is an electric pump with fuel comprising the damper according to the invention.
- FIG. 1 shows a pump proper 1 which will not be described in detail since it is in itself well known to those skilled in the art.
- the pump comprises a generally cylindrical pump body 2 having at one of its ends a suction port 3 and its opposite end a discharge port 4.
- an electric motor (not shown) which is powered by a electric current by means of electrical terminals 5, 6 protruding from one end of the pump body 2 and which are connected to a source electrical energy (not shown).
- This cage is formed by a lower ring 8 and an upper ring 9 connected one to the other by longitudinal rods 10 regularly spaced so to form between them longitudinal lights 11 also regularly spaced.
- the lower ring 9 of the cage 7 is able to bear against a circular shoulder 12 at the lower end of the pump body 2.
- FIG. 2 shows the cage 7 mounted on the pump body 2.
- the ring lower 9 of the cage 7 further comprises on its periphery two U-shaped conformations 13 diametrically opposed which on its faces the outer surfaces form projections and on its inner faces form housings adapted to receive latching lugs 14 of an element filtering in the form of a strainer 15.
- FIG. 2 shows the strainer 15 before it is assembled at the cage and Figure 3 shows these elements after assembly.
- FIG. 3 further shows a tubular element 16 according to the invention adapted to be arranged on the cage 7 in order to constitute an element vibration damper.
- This damping element is manufactured in a elastic material such as rubber.
- This tubular element 16 also constitutes a connecting member between the cage 7 and a pump casing 17 illustrated in FIGS. and 5.
- This pump case 17 comes to complete the pump assembly which then has the appearance shown in Figure 5 and is ready to be installed in a fuel trap (not shown) inside a tank fuel (not shown).
- the elastic tubular element 16 constituting the shock absorber of vibrations between the cage 7 and the pump casing 17 has on its face inner protuberances 18 adapted to cooperate with the lights 11 of the cage 7 so as to constitute locking means in rotation of the tubular element 16 with respect thereto.
- protuberances 18 are preferably constituted by folds lengths forming ribs whose length is adapted to the length of the lights 11 of the cage 7 so as to form means axial locking of the tubular element 16 relative to the cage.
- the tubular element 16 has on its outer face first latching means adapted to cooperate with second detent means provided on the pump casing 16.
- the first latching means comprise two detent members 19 diametrically opposed on the outer face of the tubular element and which respectively have a hook 20 directed outwards and adapted to protrude through a respective opening 21 provided in the housing 17.
- the pump casing 17 is conventionally provided with fixing 22 of the assembly thus obtained in for example a trap to fuel in a tank.
- a pump provided with a particularly simple vibration damping device since this device has only one piece which also makes link room function and that at the same time is very easy to ascend.
- the other elements used in the pump are standard parts, so that the implementation of the invention is particularly economical.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vibration Prevention Devices (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Compressor (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
La présente invention concerne un procédé d'assemblage d'une pompe électrique, notamment une pompe électrique à carburant, un amortisseur de vibrations pour une telle pompe, et une pompe obtenue par ce procédé.The present invention relates to a method of assembling a electric pump, in particular an electric fuel pump, a vibration damper for such a pump, and a pump obtained by this method.
Une telle pompe à carburant est en particulier utilisée dans les véhicules automobiles et est fabriquée pour être installée dans un piège à carburant disposé à l'intérieur d'un bac à carburant.Such a fuel pump is in particular used in motor vehicles and is manufactured to be installed in a trap fuel disposed within a fuel tank.
Un problème courant des pompes de ce genre résulte des vibrations engendrées par la pompe et qui dans l'application spécifique mentionnée sont transmises au bac à carburant et créent un bruit de fond gênant.A common problem with pumps of this type results from vibrations generated by the pump and that in the specific application mentioned are transmitted to the fuel tank and create a background noise embarrassing.
Dans une pompe connue, on a essayé de pallier cet inconvénient en apportant à la pompe une géométrie destinée à atténuer la transmission des vibrations par les éléments constitutifs de la pompe. La pompe proprement dite comporte un corps de pompe pourvu d'un orifice d'aspiration, d'un orifice de refoulement, et de bornes électriques pour son alimentation électrique. Ce corps de pompe est à une de ses extrémités relié à une crépine qui communique avec l'orifice d'aspiration. Un carter est disposé autour du corps de pompe et sert à protéger celui-ci et à le relier à un piège à carburant.In a known pump, we tried to overcome this disadvantage by bringing to the pump a geometry intended to attenuate the transmission of vibrations by the constituent elements of the pump. The pump itself comprises a pump body provided with an orifice suction, discharge port, and electrical terminals for its power supply. This pump body is at one of its ends connected to a strainer that communicates with the suction port. A housing is arranged around the pump body and serves to protect it and connect it to a fuel trap.
Afin de réduire dans cette pompe la transmission des vibrations du corps de pompe vers le bac par l'intermédiaire du carter de pompe, une cage en matière plastique semi-rigide est disposé sur le corps de pompe avant le montage du carter sur celui-ci. Cette cage comporte sur toute sa périphérie des lumières longitudinales régulièrement espacées. Grâce à cette géométrie spécifique, la transmission des vibrations se trouve réduite. Par ailleurs, cette cage sert également à la fixation de la crépine sur cet ensemble. Le document EP 0.773.362 décrit un tel ensemble du pompage.In order to reduce in this pump the transmission of the vibrations of the pump body to the tank via the pump housing, a semi-rigid plastic cage is arranged on the pump body before mounting the housing on it. This cage has all its periphery of the regularly spaced longitudinal lumens. Thanks to this specific geometry, the transmission of vibrations is found scaled down. Moreover, this cage is also used for fixing the strainer on this set. EP 0.773.362 discloses such a set of pumping.
Cependant, il serait souhaitable d'obtenir un amortissement plus efficace des vibrations engendrées par la pompe. A cet égard, on connaít une autre pompe à carburant pourvue de suspensions élastiques disposées aux extrémités du corps de pompe. On connaít encore une autre pompe dans laquelle la solution consiste à relier le corps de pompe est relié au carter de pompe par l'intermédiaire de plusieurs ailettes en matière élastique régulièrement disposées sur la périphérie du corps de pompe.However, it would be desirable to obtain more depreciation effective vibrations generated by the pump. In this respect, we know another fuel pump with elastic suspensions arranged at the ends of the pump body. We still know one another pump in which the solution is to connect the pump body is connected to the pump casing via a plurality of fins elastic material regularly arranged on the periphery of the body of pump.
Même si ces derniers dispositifs donnent en général satisfaction du point de vue de l'amortissement des vibrations, ils sont relativement complexes du fait qu'ils comportent un grand nombre de pièces et sont relativement encombrants. En plus, leur fabrication est onéreuse.Although the latter devices generally give satisfaction to the point of view of vibration damping, they are relatively complex because they have a large number of parts and are relatively bulky. In addition, their manufacture is expensive.
L'invention a pour but de remédier aux inconvénients mentionnés ci-dessus en proposant un procédé d'assemblage d'une pompe à carburant qui aboutit à une pompe dont le dispositif d'amortissement des vibrations est extrêmement simple, fiable et efficace, et qui en plus n'est pas encombrant.The object of the invention is to remedy the drawbacks mentioned above by proposing a method of assembling a fuel pump which leads to a pump whose vibration damping device is extremely simple, reliable and effective, and that in addition is not cumbersome.
Un des objets de l'invention est un procédé d'assemblage d'une
pompe électrique, notamment une pompe à carburant pour véhicule
automobile, comprenant les phases suivantes :
Ce procédé est caractérisé par le fait qu'après la phase c) et avant la phase d), on dispose un élément tubulaire amortisseur de vibrations sur ladite cage, ledit élément tubulaire constituant en outre un organe de liaison unique entre ladite cage et ledit carter de pompe.This process is characterized by the fact that after phase c) and before phase d), there is a tubular vibration damping element on said cage, said tubular element further constituting an organ of single connection between said cage and said pump housing.
Selon d'autres caractéristiques de invention :
- on bloque en rotation ledit élément amortisseur sur ladite cage ;
- on relie ledit élément amortisseur audit carter de pompe par encliquetage.
- said damping element is rotatably locked on said cage;
- said damping element is connected to said pump case by snapping.
Un autre objet de l'invention est un amortisseur de vibrations pour pompe électrique obtenue par le procédé défini ci-dessus et comportant un corps de pompe autour duquel est disposée une cage. Cet amortisseur est caractérisé par le fait qu'il comprend un élément tubulaire élastique comportant sur sa face intérieure des protubérances aptes à coopérer avec des lumières prévues dans ladite cage de manière à constituer des moyens de blocage en rotation dudit élément tubulaire par rapport à ladite cage.Another object of the invention is a vibration damper for electric pump obtained by the process defined above and comprising a pump body around which is disposed a cage. This damper is characterized by the fact that it comprises an elastic tubular element having on its inner face protuberances capable of cooperating with lights provided in said cage so as to constitute means for locking in rotation of said tubular element with respect to said cage.
Selon d'autres caractéristiques de l'invention :
- lesdites protubérances sont constituées par des nervures dont la longueur est adaptée à la longueur desdites lumières de manière à former des moyens de blocage axial dudit élément tubulaire par rapport à ladite cage ;
- ledit élément tubulaire comporte sur sa face extérieure des premiers moyens d'encliquetage aptes à coopérer avec des deuxièmes moyens d'encliquetage sur un carter dans lequel ledit élément tubulaire est susceptible d'être reçu ;
- lesdits premiers moyens d'encliquetage comportent deux organes d'encliquetage diamétralement opposés sur la face extérieure dudit élément tubulaire et présentant un crochet respectif dirigé vers l'extérieur et apte à faire saillie par une ouverture respective prévue dans ledit carter pour constituer lesdits deuxièmes moyens d'encliquetage ;
- l'élément tubulaire est en caoutchouc.
- said protuberances are constituted by ribs whose length is adapted to the length of said slots so as to form axial locking means of said tubular element relative to said cage;
- said tubular element comprises on its outer face first latching means adapted to cooperate with second latching means on a housing in which said tubular element is receivable;
- said first latching means comprise two diametrically opposite detent members on the outer face of said tubular element and having a respective hook directed outwards and adapted to protrude through a respective opening provided in said casing to constitute said second means of rotation. snap-fastening;
- the tubular element is made of rubber.
Encore un autre objet de l'invention est une pompe électrique à carburant obtenue selon le procédé de l'invention.Yet another object of the invention is an electric pump with fuel obtained according to the process of the invention.
Encore un autre objet de l'invention est une pompe électrique à carburant comportant l'amortisseur selon l'invention.Yet another object of the invention is an electric pump with fuel comprising the damper according to the invention.
D'autres caractéristiques et avantages de l'invention ressortiront de la description qui va suivre d'un mode de réalisation non limitatif de l'invention, en référence aux figures annexées dans lesquelles :
- la figure 1 est une vue en perspective illustrant une cage prête à recevoir un corps de pompe dans une première phase du procédé d'assemblage selon l'invention ;
- la figure 2 est une vue en perspective illustrant le corps de pompe reçu dans la cage de la figure 1, cette dernière étant prête à coopérer avec des bras de fixation d'un élément filtrant dans une deuxième phase du procédé d'assemblage selon l'invention ;
- la figure 3 est une vue en perspective illustrant le corps de pompe reçu dans la cage qui est reliée à l'élément filtrant et prête à recevoir un élément tubulaire amortisseur selon l'invention dans une troisième phase du procédé d'assemblage selon l'invention ;
- la figure 4 est une vue en perspective illustrant le corps de pompe reçu dans la cage qui est reliée à l'élément filtrant et entourée par l'élément tubulaire amortisseur de la figure 3 pour recevoir un carter de pompe dans une quatrième phase du procédé d'assemblage selon l'invention ;
- la figure 5 est une vue en perspective illustrant le corps de pompe reçu dans la cage qui est reliée à l'élément filtrant et entourée par l'élément tubulaire amortisseur qui à son tour est entouré par le carter de pompe pour ainsi former la pompe selon l'invention.
- Figure 1 is a perspective view illustrating a cage ready to receive a pump body in a first phase of the assembly method according to the invention;
- FIG. 2 is a perspective view illustrating the pump body received in the cage of FIG. 1, the latter being ready to cooperate with fixing arms of a filter element in a second phase of the assembly process according to FIG. invention;
- FIG. 3 is a perspective view illustrating the pump body received in the cage which is connected to the filter element and ready to receive a damping tubular element according to the invention in a third phase of the assembly method according to the invention; ;
- FIG. 4 is a perspective view illustrating the pump body received in the cage which is connected to the filter element and surrounded by the damping tubular element of FIG. 3 to receive a pump casing in a fourth phase of the pump process; assembly according to the invention;
- FIG. 5 is a perspective view illustrating the pump body received in the cage which is connected to the filter element and surrounded by the damping tubular element which in turn is surrounded by the pump casing so as to form the pump according to FIG. the invention.
Dans les figures, les éléments identiques ou équivalents porteront les mêmes signes de référence.In the figures, identical or equivalent elements will bear the same reference signs.
La figure 1 montre une pompe proprement dite 1 qui ne sera pas
décrite en détail puisqu'elle est en soi bien connue à l'homme du métier.
La pompe comporte un corps de pompe 2 globalement cylindrique
présentant à l'une de ses extrémités un orifice d'aspiration 3 et à son
extrémité opposée un orifice de refoulement 4. Dans le corps de pompe 2
est logé un moteur électrique (non représenté) qui est alimenté d'un
courant électrique par des bornes électriques 5, 6 faisant saillie à l'une
des extrémité du corps de pompe 2 et qui sont reliées à une source
d'énergie électrique (non représentée).Figure 1 shows a pump proper 1 which will not be
described in detail since it is in itself well known to those skilled in the art.
The pump comprises a generally
Lors de l'assemblage ultérieur de la pompe à partir de l'unité de
pompage montrée à la figure 1, une cage 6, de préférence en une matière
plastique semi-rigide, est disposée autour du corps 2. Cette cage est
constituée par un anneau inférieur 8 et un anneau supérieur 9 relié l'un à
l'autre par des tiges longitudinales 10 régulièrement espacées de manière
à former entre elles des lumières longitudinales 11 également
régulièrement espacées.When subsequently assembling the pump from the pump unit
pumping shown in Figure 1, a
L'anneau inférieure 9 de la cage 7 est apte à venir en appui contre
un épaulement circulaire 12 à l'extrémité inférieure du corps de pompe 2.
La figure 2 montre la cage 7 montée sur le corps de pompe 2. L'anneau
inférieure 9 de la cage 7 comporte en outre sur sa périphérie deux
conformations en U 13 diamétralement opposées qui sur ses faces
extérieures forment des saillies et sur ses faces intérieures forment des
logements aptes à recevoir des pattes d'encliquetage 14 d'un élément
filtrant sous forme d'une crépine 15.The
La figure 2 montre la crépine 15 avant son assemblage à la cage et
la figure 3 montre ces éléments après assemblage.FIG. 2 shows the
La figure 3 montre en outre un élément tubulaire 16 selon
l'invention apte à être disposé sur la cage 7 afin de constituer un élément
amortisseur de vibrations. Cet élément amortisseur est fabriqué en un
matériau élastique tel que le caoutchouc.FIG. 3 further shows a
Cet élément tubulaire 16 constitue en outre un organe de liaison
unique entre la cage 7 et un carter de pompe 17 illustré sur les figures 4
et 5. Ce carter de pompe 17 vient accomplir l'assemblage de la pompe
qui alors présente l'aspect illustré à la figure 5 et qui est prête à être
installée dans un piège à carburant (non représenté) à l'intérieur d'un bac
à carburant (non représenté).This
L'élément tubulaire élastique 16 constituant l'amortisseur de
vibrations entre la cage 7 et le carter de pompe 17 comporte sur sa face
intérieure des protubérances 18 aptes à coopérer avec les lumières 11 de
la cage 7 de manière à constituer des moyens de blocage en rotation de
l'élément tubulaire 16 par rapport à celle-ci. The elastic
Ces protubérances 18 sont de préférence constituées par des plis
longitudinaux formant des nervures dont la longueur est adaptée à la
longueur des lumières 11 de la cage 7 de manière à former des moyens
de blocage axial de l'élément tubulaire 16 par rapport à la cage.These
Par ailleurs, l'élément tubulaire 16 comporte sur sa face extérieure
des premiers moyens d'encliquetage aptes à coopérer avec des
deuxièmes moyens d'encliquetage prévus sur le carter de pompe 16. Les
premiers moyens d'encliquetage comportent deux organes d'encliquetage
19 diamétralement opposés sur la face extérieure de l'élément tubulaire
et qui présentent respectivement un crochet 20 dirigé vers l'extérieur et
apte à faire saillie par une ouverture respective 21 prévue dans le carter
de pompe 17. Lors de l'introduction de l'ensemble représenté en bas de la
figure 4 dans le carter de pompe représenté en haut de cette même figure,
les crochets 20 sont d'abord comprimés contre la paroi interne du carter
avant de retrouver leur forme initiale en faisant saillie vers l'extérieur par
les ouvertures 21.Moreover, the
Le carter de pompe 17 est de manière classique pourvu d'organes
de fixation 22 de l'ensemble ainsi obtenu dans par exemple un piège à
carburant dans un bac.The
Grâce à l'invention, on obtient ainsi une pompe pourvue d'un dispositif d'amortissement des vibrations particulièrement simple puisque ce dispositif ne comporte qu'une seule pièce qui aussi fait fonction de pièce de liaison et qui en même temps est très facile à monter. Par ailleurs, les autres éléments utilisés dans la pompe sont des pièces standard, ce qui fait que la mise en oeuvre de l'invention est particulièrement économique.Thanks to the invention, a pump provided with a particularly simple vibration damping device since this device has only one piece which also makes link room function and that at the same time is very easy to ascend. Moreover, the other elements used in the pump are standard parts, so that the implementation of the invention is particularly economical.
Bien entendu, l'invention n'est pas limitée à l'exemple illustré et décrit, mais peut être appliquée à une pompe quelconque destinée au pompage d'un fluide.Of course, the invention is not limited to the illustrated example and described, but can be applied to any pump intended for pumping a fluid.
Claims (10)
- Process for assembly of an electric pump, comprising the following phases:a) the pump proper (1) is formed including a pump body (2) provided with an induction orifice (3), a delivery orifice (4), and electrical terminals (5, 6) to supply it with energy;b) a cage (7) is arranged around the said pump body (2) ;c) to one of the ends of the said pump body (2) is fixed a filtration element (15), connecting it to the said cage (7) so that the said induction orifice (3) communicates with the said filtration element (15); andd) the assembly thus obtained is introduced into a pump casing (17) and the one is connected to the other;
- Assembly process as described in claim 1, characterised by the fact that the said damping element (16) is locked in rotation on the said cage (7).
- Assembly process as described in claim 1 or 2, characterised by the fact that the said damping element (16) is connected to the said pump casing (17) with a snap-fit (19 to 21).
- Vibration damper for electric pump (1) obtained by the process as described in any one of claims 1 to 3, and including a pump body (2) around which a cage (7) is arranged, characterised by the fact that the said damper comprises an elastic tubular element (16) including on its internal face protuberances (18) able to co-operate with apertures (11) provided in the said cage (7) so as to constitute means for locking the said tubular element (16) in rotation relative to the said cage (7).
- Damper as described in claim 4, characterised by the fact that the said protuberances (18) are formed by vanes the length of which is suited to the length of the said apertures (11) so as to form means for axial locking of the said tubular element (16) relative to the said cage (7).
- Damper as described in claim 4 or 5, characterised by the fact that the said tubular element (16) includes on its external face first snap-fit means (19, 20) able to co-operate with second snap-fit means (21) on a pump casing (17) in which the said tubular element (16) is able to be received.
- Damper as described in claim 6, characterised by the fact that the said first snap-fit means include two diametrically opposed snap-fit organs (19, 20) on the external face of the said tubular element (16) and presenting a respective outwardly directed hook (20) able to project through a respective opening (21) provided in the said pump casing (17) to constitute the said second snap-fit means.
- Damper as described in any one of claims 4 to 7, characterised by the fact that the tubular element (16) is made of rubber.
- Electric fuel pump, characterised by the fact that it is obtained in accordance with any one of claims 1 to 3.
- Electric fuel pump, characterised by the fact that it includes the damper as described in any one of claims 4 to 8.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0207701 | 2002-06-21 | ||
FR0207701A FR2841300A1 (en) | 2002-06-21 | 2002-06-21 | METHOD FOR ASSEMBLING AN ELECTRIC PUMP, AND VIBRATION DAMPER FOR SUCH A PUMP |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1375901A1 EP1375901A1 (en) | 2004-01-02 |
EP1375901B1 true EP1375901B1 (en) | 2005-01-19 |
Family
ID=29717075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03291331A Expired - Lifetime EP1375901B1 (en) | 2002-06-21 | 2003-06-04 | Method for assembling an electric pump and vibration damper for such a device |
Country Status (5)
Country | Link |
---|---|
US (1) | US7025574B2 (en) |
EP (1) | EP1375901B1 (en) |
AT (1) | ATE287497T1 (en) |
DE (1) | DE60300275T2 (en) |
FR (1) | FR2841300A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008045157A1 (en) | 2008-08-30 | 2010-03-04 | Ab Elektronik Gmbh | Fuel tank for motor vehicle, particularly truck, has tank body and pipe extending into tank body for transporting fuel into and from tank body, and filter is fastened to tank-body-sided cylindrical end of pipe |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2005083303A (en) * | 2003-09-10 | 2005-03-31 | Aisan Ind Co Ltd | Vibration relief structure of fuel pump |
FR2875859B1 (en) * | 2004-09-28 | 2011-05-06 | Marwal Systems | ACCESSORY DEVICE FOR A PILOT MODULE OF THE TANK OF A MOTOR VEHICLE |
WO2006096863A2 (en) * | 2005-03-09 | 2006-09-14 | Xirrus, Inc. | Access point in a wireless lan |
US8934416B2 (en) * | 2005-03-09 | 2015-01-13 | Xirrus, Inc. | System for allocating channels in a multi-radio wireless LAN array |
US7261323B2 (en) * | 2005-03-31 | 2007-08-28 | Nissan Technical Center North America, Inc. | Fuel damper |
FR2897115B1 (en) * | 2006-02-06 | 2012-09-28 | Ti Automotive Fuel Systems Sas | DEVICE FOR MAINTAINING AN ELECTRIC PUMP IN A FUEL TANK |
DE102006030188A1 (en) * | 2006-06-30 | 2008-01-03 | Trw Automotive Gmbh | Motor-pump assembly for car power steering has shock absorbers between pump module and assembly casing consisting of leaf spring, positioning pin, resilient seals, washers and shaft coupling |
US9088907B2 (en) * | 2007-06-18 | 2015-07-21 | Xirrus, Inc. | Node fault identification in wireless LAN access points |
US20110027110A1 (en) * | 2008-01-31 | 2011-02-03 | Schlumberger Technology Corporation | Oil filter for downhole motor |
US8482478B2 (en) * | 2008-11-12 | 2013-07-09 | Xirrus, Inc. | MIMO antenna system |
DE102009000399A1 (en) * | 2009-01-23 | 2010-07-29 | Robert Bosch Gmbh | Device for conveying fuel |
US8662829B2 (en) * | 2010-02-19 | 2014-03-04 | Pit Boss Products, Llc | Pump guard adaptor, system and method of adaptation thereof |
US8830854B2 (en) | 2011-07-28 | 2014-09-09 | Xirrus, Inc. | System and method for managing parallel processing of network packets in a wireless access device |
US8868002B2 (en) | 2011-08-31 | 2014-10-21 | Xirrus, Inc. | System and method for conducting wireless site surveys |
US9055450B2 (en) | 2011-09-23 | 2015-06-09 | Xirrus, Inc. | System and method for determining the location of a station in a wireless environment |
CN102691733B (en) * | 2012-05-29 | 2015-05-13 | 浙江吉利汽车研究院有限公司杭州分公司 | Device for fixing clutch slave cylinder |
WO2016082852A1 (en) * | 2014-11-24 | 2016-06-02 | Mann+Hummel Gmbh | Filtering device, filtering element and maintenance process of a filtering device |
JP6575497B2 (en) * | 2016-12-07 | 2019-09-18 | トヨタ自動車株式会社 | Pump module assembly structure |
JP7068550B2 (en) | 2018-10-25 | 2022-05-16 | ピエルブルク パムプ テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツンク | Automatic vehicle pumping equipment and mounting equipment for automatic vehicle pumping equipment |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3602135C1 (en) * | 1986-01-24 | 1992-07-02 | Bayerische Motoren Werke Ag | Storage of a fuel pump in the fuel tank of a motor vehicle |
US5002467A (en) * | 1989-02-17 | 1991-03-26 | Walbro Corporation | In-tank fuel pump mount |
US5165867A (en) * | 1992-02-25 | 1992-11-24 | General Motors Corporation | Fuel pump mounting |
DE4336574B4 (en) * | 1993-10-27 | 2005-06-02 | Siemens Ag | Fuel delivery unit |
US5482444A (en) * | 1994-09-06 | 1996-01-09 | General Motors Corporation | Vibration isolating mounting for an electric fuel pump |
DE19523634A1 (en) * | 1995-06-29 | 1997-01-02 | Bosch Gmbh Robert | Device for receiving a fuel delivery unit within a fuel tank |
FR2740835B1 (en) * | 1995-11-08 | 1997-12-12 | Bitron France | DEVICE FOR SUSPENSION OF A PUMP AND / OR A STRAINER BELONGING TO A PUMP ASSEMBLY |
US6378504B1 (en) * | 1999-06-10 | 2002-04-30 | Aisan Kogyo Kabushiki Kaisha | Reduced vibration fuel supply systems |
GB9920206D0 (en) * | 1999-08-27 | 1999-10-27 | Lucas Industries Ltd | Metering valve |
-
2002
- 2002-06-21 FR FR0207701A patent/FR2841300A1/en active Pending
-
2003
- 2003-04-29 US US10/430,180 patent/US7025574B2/en not_active Expired - Fee Related
- 2003-06-04 EP EP03291331A patent/EP1375901B1/en not_active Expired - Lifetime
- 2003-06-04 AT AT03291331T patent/ATE287497T1/en not_active IP Right Cessation
- 2003-06-04 DE DE60300275T patent/DE60300275T2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008045157A1 (en) | 2008-08-30 | 2010-03-04 | Ab Elektronik Gmbh | Fuel tank for motor vehicle, particularly truck, has tank body and pipe extending into tank body for transporting fuel into and from tank body, and filter is fastened to tank-body-sided cylindrical end of pipe |
Also Published As
Publication number | Publication date |
---|---|
US20040005227A1 (en) | 2004-01-08 |
DE60300275T2 (en) | 2006-01-05 |
DE60300275D1 (en) | 2005-02-24 |
FR2841300A1 (en) | 2003-12-26 |
EP1375901A1 (en) | 2004-01-02 |
ATE287497T1 (en) | 2005-02-15 |
US7025574B2 (en) | 2006-04-11 |
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