EP3069110A1 - Device for measuring a liquid level - Google Patents

Device for measuring a liquid level

Info

Publication number
EP3069110A1
EP3069110A1 EP14821695.5A EP14821695A EP3069110A1 EP 3069110 A1 EP3069110 A1 EP 3069110A1 EP 14821695 A EP14821695 A EP 14821695A EP 3069110 A1 EP3069110 A1 EP 3069110A1
Authority
EP
European Patent Office
Prior art keywords
knurled
gripping element
liquid level
threaded portion
measuring
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.)
Withdrawn
Application number
EP14821695.5A
Other languages
German (de)
French (fr)
Inventor
Xavier MICHAUDET
Franck Menard
Nicolas Renard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Systemes de Controle Moteur SAS
Original Assignee
Valeo Systemes de Controle Moteur SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Systemes de Controle Moteur SAS filed Critical Valeo Systemes de Controle Moteur SAS
Publication of EP3069110A1 publication Critical patent/EP3069110A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/268—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors mounting arrangements of probes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/0023—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm with a probe suspended by a wire or thread
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/24—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
    • G01F23/246—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid thermal devices
    • G01F23/247—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid thermal devices for discrete levels
    • G01F23/248—Constructional details; Mounting of probes

Definitions

  • the present invention relates to the field of fluid level measuring devices, and more particularly to a device for measuring the liquid level of a vehicle, and for example a motor vehicle.
  • liquid level measuring systems such as for example the oil level measuring probes.
  • These devices are conventionally formed by a connector, interface means, for example with a reservoir, and a portion called dip tube which will be in contact with the liquid whose level is to be measured.
  • the interface means comprise a threaded portion and a gripping portion for screwing the nut-type device, and are made of metal.
  • the present invention therefore aims to overcome one or more of the disadvantages of the devices of the prior art by providing a liquid level measurement device lighter than those of the prior art and less expensive.
  • the present invention provides a liquid level measuring device having a threaded portion for fastening by screwing the device on a support, and a gripping element, for screwing the device, anchored on a knurled element, the part threaded and knurled element being metal and overmolded, and the gripping member being plastic.
  • the use of a plastic gripping element 3 allows a mass gain of between 15 and 50% compared with the use of a metal gripping element.
  • the knurling of the zone in contact with the gripping element 3 for screwing the device consists in increasing the contact surface and producing a greater resistance to torsion than when there is no knurling.
  • the threaded portion and the knurled element form a single piece.
  • the gripping element comprises at least three faces.
  • the gripping element has hexagonal faces.
  • the knurled element comprises at least one knurling stage.
  • the knurled element comprises two knurling stages.
  • the invention also relates to interface means for a liquid level measuring device according to the invention, comprising a threaded part allowing the device to be fixed by screwing on a support, and a gripping element, for screwing the device, anchored on a knurled element, the threaded portion and the knurled element being made of metal and overmoulded, and the gripping element being plastic.
  • the invention also relates to a method for producing a device according to the invention, comprising a step in which the threaded portion and the gripping element are overmolded.
  • the invention also relates to the use of the liquid level measuring device according to the invention for measuring the oil level in a crankcase.
  • FIG. 1 is a schematic representation of a perspective view of a device according to the invention
  • FIG. 2 is a schematic representation of a perspective view of a device according to the invention, the internal parts being viewable by transparency.
  • the present invention relates to a liquid level measuring device.
  • the operation of such a probe is such that, for example, that of the probe described in the patent application FR2950968.
  • the liquid is oil.
  • the level measuring device is an oil level sensor for a motor vehicle.
  • the liquid level measuring device 1 is formed by a plug 6 for a connector, interface means 10 and a dip tube 4.
  • dip tube 4 is meant the part that will be immersed in the liquid whose level is measured. Inside this dip tube 4 is disposed a not shown sensitive element.
  • interface 10 means that are in contact with elements that do not belong to the device itself. More specifically, the interface means 10, illustrated in FIGS. 1 and 2, comprise a threaded portion 2 and a gripping element 3 for screwing the device, in which is disposed a plug 6 of a connector.
  • the threaded portion 2 allows the assembly of the device 1 on a support not shown.
  • This support is for example a wall of a crankcase.
  • the gripping element 3 serves to protect the plug 6 of the connector and also serves as holding means when the device is screwed onto a support.
  • This gripping element 3 serves for example as an interface with a screwdriver.
  • This gripping element 3 is made of plastic.
  • the gripping element 3 in the form of a nut and comprises at least three panels 31.
  • the gripping element 3 has six panels 31.
  • the gripping member 3 is anchored to a knurled element 5 also known as knurling, shown in FIG. 2.
  • the connector plug 6 passes through the knurled element 5 and the gripping element 2, and is molded therewith.
  • This knurled element 5 comprises at least one knurling stage.
  • this knurled element 5 comprises two knurling stages illustrated in FIG.
  • Knurling means the grooves formed on an element in the longitudinal direction.
  • a stage corresponds to a series of grooves.
  • Two floors correspond to two sets of grooves. It is these grooves that allow anchoring of the gripping element 3.
  • the knurling of the zone in contact with the gripping element 3 for screwing the device consists in increasing the contact surface and producing a greater resistance to torsion than when there is no knurling.
  • the number of knurling stages is a function of the height of the desired gripping element 3, and the distance between the threaded zone 2 and the desired gripping element 3.
  • the threaded portion 2 and the knurled element 5 are made of metal and are overmolded on the dip tube 4 and the plug 6 of the connector.
  • the threaded portion 2 and the knurled element are identical to one embodiment of the invention.
  • This overmoulded part allows the use of a plastic gripping element 3, unlike the devices of the prior art where the gripping element is made of metal.
  • a plastic gripping element 3 allows a mass gain of between 15 and 50%, and preferably at least 30% relative to the use of a metal gripper.
  • Such a device according to the invention also makes it possible to reduce the cost of the metal part because the machining is done on a metal rod of smaller size, while maintaining the robustness to the tightening torque thanks to the knurled element 5.
  • the device 1 also comprises an elongate and smooth portion, not shown, disposed between the threaded portion and the gripping element. This part serves to prevent the direct contact of the gripping element with the support on which the device is screwed.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

The present invention relates to a device for measuring a liquid level, comprising a connector socket (6), a threaded part (2) for screw-fastening the device to a holder, and a gripping element (3, 31), for screwing the device, anchored on a knurled element (5), the threaded part (2) and the knurled element (5) being made of metal and overmoulded, and the gripping element (3) being made of plastics material. The invention also relates to the method for producing such a device, and also to the use of this device for measuring the level of oil in an engine casing.

Description

DISPOSITIF DE MESURE DE NIVEAU DE LIQUIDE  DEVICE FOR MEASURING LIQUID LEVEL
La présente invention concerne le domaine des dispositifs de mesure de niveau de fluide, et plus particulièrement un dispositif de mesure de niveau de liquide d'un véhicule, et par exemple un véhicule automobile. The present invention relates to the field of fluid level measuring devices, and more particularly to a device for measuring the liquid level of a vehicle, and for example a motor vehicle.
Il est déjà connu des systèmes de mesure de niveau de liquide, telles que par exemple les sondes de mesure de niveau d'huile.  It is already known liquid level measuring systems, such as for example the oil level measuring probes.
Ces dispositifs sont de manière classique formés par un connecteur, des moyens d'interface, par exemple avec un réservoir, et une partie appelée tube plongeur qui va être au contact du liquide dont on cherche à mesurer le niveau.  These devices are conventionally formed by a connector, interface means, for example with a reservoir, and a portion called dip tube which will be in contact with the liquid whose level is to be measured.
Actuellement, les moyens d'interface comportent une partie filetée et une partie de préhension pour le vissage du dispositif de type écrou, et sont en métal.  Currently, the interface means comprise a threaded portion and a gripping portion for screwing the nut-type device, and are made of metal.
Un des inconvénients de ces dispositifs déjà connus est que leur masse est importante dû à la présence du métal, ce qui de plus engendre des coûts important en termes de fabrication.  One of the disadvantages of these devices already known is that their mass is important due to the presence of metal, which also generates significant costs in terms of manufacturing.
La présente invention a donc pour objet de pallier un ou plusieurs des inconvénients des dispositifs de l'art antérieur en proposant un dispositif de mesure de niveau de liquide plus léger que ceux de l'art antérieur et moins coûteux.  The present invention therefore aims to overcome one or more of the disadvantages of the devices of the prior art by providing a liquid level measurement device lighter than those of the prior art and less expensive.
Pour cela, la présente invention propose un dispositif de mesure de niveau de liquide comportant une partie filetée permettant la fixation par vissage du dispositif sur un support, et un élément de préhension, pour le vissage du dispositif, ancré sur un élément moleté, la partie filetée et l'élément moleté étant en métal et surmoulés, et l'élément de préhension étant en plastique.  For this, the present invention provides a liquid level measuring device having a threaded portion for fastening by screwing the device on a support, and a gripping element, for screwing the device, anchored on a knurled element, the part threaded and knurled element being metal and overmolded, and the gripping member being plastic.
L'utilisation d'un élément de préhension 3 en plastique permet un gain en masse compris entre 15 et 50% par rapport à l'utilisation d'un élément de préhension en métal.  The use of a plastic gripping element 3 allows a mass gain of between 15 and 50% compared with the use of a metal gripping element.
Le moletage de la zone en contact avec l'élément de préhension 3 pour le vissage du dispositif consiste à augmenter la surface de contact et à produire une résistance au couple de torsion plus forte que lorsqu'il n'y a pas de moletage.  The knurling of the zone in contact with the gripping element 3 for screwing the device consists in increasing the contact surface and producing a greater resistance to torsion than when there is no knurling.
Selon un mode de réalisation de l'invention, la partie filetée et l'élément moleté forment une seule pièce. Selon un mode de réalisation de l'invention, l'élément de préhension comporte au moins trois pans. According to one embodiment of the invention, the threaded portion and the knurled element form a single piece. According to one embodiment of the invention, the gripping element comprises at least three faces.
Selon une variante de l'invention, l'élément de préhension comporte six pans Selon un mode de réalisation de l'invention, l'élément moleté comporte au moins un étage de moletage.  According to a variant of the invention, the gripping element has hexagonal faces. According to one embodiment of the invention, the knurled element comprises at least one knurling stage.
Selon une variante de l'invention, l'élément moleté comporte deux étages de moletage.  According to a variant of the invention, the knurled element comprises two knurling stages.
L'invention concerne également des moyens d'interface pour dispositif de mesure de niveau de liquide selon l'invention, comportant une partie filetée permettant la fixation par vissage du dispositif sur un support, et un élément de préhension, pour le vissage du dispositif, ancré sur un élément moleté, la partie filetée et l'élément moleté étant en métal et surmoulés, et l'élément de préhension étant en plastique.  The invention also relates to interface means for a liquid level measuring device according to the invention, comprising a threaded part allowing the device to be fixed by screwing on a support, and a gripping element, for screwing the device, anchored on a knurled element, the threaded portion and the knurled element being made of metal and overmoulded, and the gripping element being plastic.
L'invention concerne également un procédé de réalisation d'un dispositif selon l'invention, comportant une étape dans laquelle la partie filetée et l'élément de préhension sont surmoulés.  The invention also relates to a method for producing a device according to the invention, comprising a step in which the threaded portion and the gripping element are overmolded.
L'invention concerne également l'utilisation du dispositif de mesure de niveau de liquide selon l'invention, pour mesurer le niveau d'huile dans un carter moteur.  The invention also relates to the use of the liquid level measuring device according to the invention for measuring the oil level in a crankcase.
D'autres buts, caractéristiques et avantages de l'invention seront mieux compris et apparaîtront plus clairement à la lecture de la description faite, ci-après, en se référant aux figures annexées, données à titre d'exemple et dans lesquelles: Other objects, features and advantages of the invention will be better understood and will appear more clearly on reading the description given hereinafter with reference to the appended figures given by way of example and in which:
- la figure 1 est une représentation schématique d'une vue en perspective d'un dispositif selon l'invention,  FIG. 1 is a schematic representation of a perspective view of a device according to the invention,
- la figure 2 est une représentation schématique d'une vue en perspective d'un dispositif selon l'invention, les pièces internes étant visualisables par transparence.  - Figure 2 is a schematic representation of a perspective view of a device according to the invention, the internal parts being viewable by transparency.
La présente invention concerne un dispositif de mesure de niveau de liquide. Le fonctionnement d'une telle sonde est tel que, par exemple, celui de la sonde décrite dans la demande de brevet FR2950968. The present invention relates to a liquid level measuring device. The operation of such a probe is such that, for example, that of the probe described in the patent application FR2950968.
Selon un mode de réalisation de l'invention, le liquide est de l'huile. Selon un mode de réalisation de l'invention le dispositif de mesure de niveau est une sonde de niveau d'huile pour véhicule automobile. According to one embodiment of the invention, the liquid is oil. According to one embodiment of the invention the level measuring device is an oil level sensor for a motor vehicle.
Comme cela est illustré sur les figures 1 et 2, le dispositif 1 de mesure de niveau de liquide selon l'invention est formé par une prise 6 pour connecteur, des moyens d'interface 10 et un tube plongeur 4.  As illustrated in FIGS. 1 and 2, the liquid level measuring device 1 according to the invention is formed by a plug 6 for a connector, interface means 10 and a dip tube 4.
On entend par tube plongeur 4 la partie qui va être immergée dans le liquide dont on mesure le niveau. A l'intérieur de ce tube plongeur 4 est disposé un élément sensible non illustré.  By dip tube 4 is meant the part that will be immersed in the liquid whose level is measured. Inside this dip tube 4 is disposed a not shown sensitive element.
On entend par moyens d'interface 10, les moyens qui sont en contact avec des éléments n'appartenant pas au dispositif lui-même. Plus précisément, les moyens d'interface 10, illustrés sur les figures 1 et 2, comprennent une partie filetée 2 et un élément de préhension 3 pour le vissage du dispositif, dans lequel est disposé une prise 6 d'un connecteur.  By means of interface 10 is meant means that are in contact with elements that do not belong to the device itself. More specifically, the interface means 10, illustrated in FIGS. 1 and 2, comprise a threaded portion 2 and a gripping element 3 for screwing the device, in which is disposed a plug 6 of a connector.
La partie filetée 2 permet l'assemblage du dispositif 1 sur un support non illustré. Ce support est par exemple une paroi d'un carter moteur.  The threaded portion 2 allows the assembly of the device 1 on a support not shown. This support is for example a wall of a crankcase.
L'élément de préhension 3 à pour rôle de protéger la prise 6 du connecteur et sert également de moyens de maintien lors du vissage du dispositif sur un support. Cet élément de préhension 3 sert par exemple d'interface avec une visseuse. Cet élément de préhension 3 est en plastique.  The gripping element 3 serves to protect the plug 6 of the connector and also serves as holding means when the device is screwed onto a support. This gripping element 3 serves for example as an interface with a screwdriver. This gripping element 3 is made of plastic.
Selon un mode de réalisation de l'invention, l'élément de préhension 3 à la forme d'un écrou et comporte au moins trois pans 31. De manière préférée, l'élément de préhension 3 comporte six pans 31.  According to one embodiment of the invention, the gripping element 3 in the form of a nut and comprises at least three panels 31. Preferably, the gripping element 3 has six panels 31.
L'élément de préhension 3 est ancré sur un élément moleté 5 également appelé moletage, illustré sur la figure 2. La prise 6 du connecteur traverse l'élément moleté 5 et l'élément de préhension 2, et est surmoulé avec ces derniers.  The gripping member 3 is anchored to a knurled element 5 also known as knurling, shown in FIG. 2. The connector plug 6 passes through the knurled element 5 and the gripping element 2, and is molded therewith.
Cet élément moleté 5 comporte au moins un étage de moletage.  This knurled element 5 comprises at least one knurling stage.
Selon un mode de réalisation de l'invention, cet élément moleté 5 comporte deux étages de moletage illustrés sur la figure 2.  According to one embodiment of the invention, this knurled element 5 comprises two knurling stages illustrated in FIG.
On entend par moletage, les rainures formées sur un élément dans le sens longitudinal. Un étage correspond à une série de rainures. Deux étages correspondent à deux séries de rainures. Ce sont ces rainures qui permettent l'ancrage de l'élément de préhension 3. Knurling means the grooves formed on an element in the longitudinal direction. A stage corresponds to a series of grooves. Two floors correspond to two sets of grooves. It is these grooves that allow anchoring of the gripping element 3.
Le moletage de la zone en contact avec l'élément de préhension 3 pour le vissage du dispositif consiste à augmenter la surface de contact et à produire une résistance au couple de torsion plus forte que lorsqu'il n'y a pas de moletage. Le nombre d'étage de moletage est fonction de la hauteur de l'élément de préhension 3 voulue, et de la distance, entre la zone filetée 2 et de l'élément de préhension 3, voulue.  The knurling of the zone in contact with the gripping element 3 for screwing the device consists in increasing the contact surface and producing a greater resistance to torsion than when there is no knurling. The number of knurling stages is a function of the height of the desired gripping element 3, and the distance between the threaded zone 2 and the desired gripping element 3.
Dans le cadre de l'invention, la partie filetée 2 et l'élément moleté 5 sont en métal et sont surmoulés sur le tube plongeur 4 et la prise 6 du connecteur.  In the context of the invention, the threaded portion 2 and the knurled element 5 are made of metal and are overmolded on the dip tube 4 and the plug 6 of the connector.
Selon un mode de réalisation de l'invention, la partie filetée 2 et l'élément moleté According to one embodiment of the invention, the threaded portion 2 and the knurled element
5 sont en métal et forment une seule pièce surmoulée. 5 are metal and form a single molded part.
Cette partie surmoulée permet d'utiliser un élément de préhension 3 en plastique, contrairement aux dispositifs de l'art antérieur ou l'élément de préhension est en métal.  This overmoulded part allows the use of a plastic gripping element 3, unlike the devices of the prior art where the gripping element is made of metal.
L'utilisation d'un élément de préhension 3 en plastique permet un gain en masse compris entre 15 et 50%, et de manière préférée d'au moins 30% par rapport à l'utilisation d'un élément de préhension en métal.  The use of a plastic gripping element 3 allows a mass gain of between 15 and 50%, and preferably at least 30% relative to the use of a metal gripper.
Un tel dispositif selon l'invention permet également de réduire le coût de la pièce métallique car l'usinage se fait sur un barreau en métal de taille plus faible, tout en conservant la robustesse au couple de vissage grâce à l'élément moleté 5.  Such a device according to the invention also makes it possible to reduce the cost of the metal part because the machining is done on a metal rod of smaller size, while maintaining the robustness to the tightening torque thanks to the knurled element 5.
Selon un mode de réalisation de l'invention, le dispositif 1 comprend également une partie allongée et lisse, non illustrée, disposée entre la partie filetée et l'élément de préhension. Cette partie sert à éviter le contact direct de l'élément de préhension avec le support sur lequel est vissé le dispositif.  According to one embodiment of the invention, the device 1 also comprises an elongate and smooth portion, not shown, disposed between the threaded portion and the gripping element. This part serves to prevent the direct contact of the gripping element with the support on which the device is screwed.
La portée de la présente invention ne se limite pas aux détails donnés ci-dessus et permet des modes de réalisation sous de nombreuses autres formes spécifiques sans s'éloigner du domaine d'application de l'invention. Par conséquent, les présents modes de réalisation doivent être considérés à titre d'illustration, et peuvent être modifiés sans toutefois sortir de la portée définie par les revendications.  The scope of the present invention is not limited to the details given above and allows embodiments in many other specific forms without departing from the scope of the invention. Therefore, the present embodiments should be considered by way of illustration, and may be modified without departing from the scope defined by the claims.

Claims

REVENDICATIONS
1. Dispositif (1) de mesure de niveau de liquide comportant une partie filetée (2) permettant la fixation par vissage du dispositif sur un support, et un élément de préhension (3), pour le vissage du dispositif, ancré sur un élément moleté (5), la partie filetée (2) et l'élément moleté (5) étant en métal et surmoulés, et l'élément de préhension (3) étant en plastique. 1. Device (1) for measuring the liquid level having a threaded portion (2) for fixing the device by screwing on a support, and a gripping element (3) for screwing the device, anchored to a knurled element (5), the threaded portion (2) and the knurled element (5) being metal and overmolded, and the gripping member (3) being plastic.
2. Dispositif selon la revendication 1, dans lequel la partie filetée (2) et l'élément moleté (5) forment une seule pièce.  2. Device according to claim 1, wherein the threaded portion (2) and the knurled element (5) form a single piece.
3. Dispositif selon une des revendications 1 à 2, dans lequel l'élément de préhension 3. Device according to one of claims 1 to 2, wherein the gripping element
(3) comporte au moins trois pans (31). (3) has at least three sides (31).
4. Dispositif selon une des revendications 1 à 3, dans lequel l'élément moleté (5) comporte un étage de moletage.  4. Device according to one of claims 1 to 3, wherein the knurled element (5) has a knurling stage.
5. Moyens d'interface (10) pour dispositif (1) de mesure de niveau de liquide selon une des revendications 1 à 4 comportant une partie filetée (2) permettant la fixation par vissage du dispositif sur un support, un élément de préhension (3), pour le vissage du dispositif, ancré sur un élément moleté (5), la partie filetée (2) et l'élément moleté (5) étant en métal et surmoulés, et l'élément de préhension (3) étant en plastique.  Interface means (10) for a liquid level measuring device (1) according to one of claims 1 to 4, having a threaded portion (2) for fastening the device by screwing onto a support, a gripping element ( 3), for screwing the device, anchored to a knurled element (5), the threaded portion (2) and the knurled element (5) being made of metal and overmolded, and the gripping element (3) being plastic .
6. Procédé de réalisation d'un dispositif selon une des revendications 1 à 4, comportant une étape dans laquelle la partie filetée (2) et l'élément de préhension (3) sont surmoulés.  6. A method of producing a device according to one of claims 1 to 4, comprising a step in which the threaded portion (2) and the gripping member (3) are overmolded.
7. Utilisation du dispositif (1) de mesure de niveau de liquide selon une des revendications 1 à 4 pour mesurer le niveau d'huile dans un carter moteur.  7. Use of the liquid level measuring device (1) according to one of claims 1 to 4 for measuring the oil level in a crankcase.
EP14821695.5A 2013-11-15 2014-11-13 Device for measuring a liquid level Withdrawn EP3069110A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1361204A FR3013447B1 (en) 2013-11-15 2013-11-15 DEVICE FOR MEASURING LIQUID LEVEL
PCT/FR2014/052890 WO2015071598A1 (en) 2013-11-15 2014-11-13 Device for measuring a liquid level

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EP3069110A1 true EP3069110A1 (en) 2016-09-21

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EP14821695.5A Withdrawn EP3069110A1 (en) 2013-11-15 2014-11-13 Device for measuring a liquid level

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EP (1) EP3069110A1 (en)
KR (1) KR20160085883A (en)
FR (1) FR3013447B1 (en)
WO (1) WO2015071598A1 (en)

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Publication number Priority date Publication date Assignee Title
IT201700082500A1 (en) * 2017-07-20 2019-01-20 Eltek Spa DEVICE FOR DETECTION OF THE LEVEL OF A MEDIA

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
US4638305A (en) * 1985-03-22 1987-01-20 General Motors Corporation Apparatus for detecting water in fuel
US4652074A (en) * 1985-05-03 1987-03-24 Kings Electronics Co., Inc. Co-axial isolated ground bulkhead receptacle
DE59912561D1 (en) * 1999-07-15 2005-10-20 Endress & Hauser Gmbh & Co Kg Waveguide for a microwave level gauge
FR2950968B1 (en) * 2009-10-01 2012-03-23 Sc2N Sa PROBE FOR MEASURING THE OIL LEVEL IN AN AUTOMOBILE HOUSING MADE OF POLYMERIC MATERIAL

Non-Patent Citations (1)

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Title
See references of WO2015071598A1 *

Also Published As

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KR20160085883A (en) 2016-07-18
FR3013447B1 (en) 2016-01-01
WO2015071598A1 (en) 2015-05-21
FR3013447A1 (en) 2015-05-22

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