FR2534375A1 - Device for transmitting an electrical signal corresponding to a level of a liquid - Google Patents
Device for transmitting an electrical signal corresponding to a level of a liquid Download PDFInfo
- Publication number
- FR2534375A1 FR2534375A1 FR8315672A FR8315672A FR2534375A1 FR 2534375 A1 FR2534375 A1 FR 2534375A1 FR 8315672 A FR8315672 A FR 8315672A FR 8315672 A FR8315672 A FR 8315672A FR 2534375 A1 FR2534375 A1 FR 2534375A1
- Authority
- FR
- France
- Prior art keywords
- liquid
- strips
- cylindrical body
- hollow cylindrical
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- G01F23/30—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 floats
- G01F23/64—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 floats of the free float type without mechanical transmission elements
- G01F23/68—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
Description
La présente demande concerne un dispositif émetteur d'un signal électrique correspondant à un niveau de liquide à 1 'in- térieur des reservoirs, applicable tout particulièrement à des réservoirs plats de véhicules, du type de ceux comprenant un corps cylindrique creux, avec des petites ouvertures pour l'entrée et la sortie du liquide, et à l'intérieur duquel un flotteur se déplace dans le sens ascendant et dans le sens descendant, flottant à la surface du liquide. Sont également disposées à l'intérieur du corps cylindrique creux des éléments résistants électriquement, sur lesquels coulisse ou glisseun élément conducteur qui constitue avec ces parties une résistance électrique variable en fonction du niveau du liquide contenu dans le réservoir.Le corps cylindrique creux est fermé à sa partie inférieure par un élément formant bouchon doté d'un filtre de liquide, et à sa partie supérieure par un'élément formant tête, traversé par un tube d'aspiration du liquide passant également dans le réservoir et au travers du bouchon en partie basse.The present application relates to a device emitting an electrical signal corresponding to a liquid level inside the reservoirs, particularly applicable to flat tanks of vehicles, of the type of those comprising a hollow cylindrical body, with small openings for the inlet and outlet of the liquid, and inside which a float moves in the upward direction and in the downward direction, floating on the surface of the liquid. Electrically resistant elements are also arranged inside the hollow cylindrical body, on which slides or slides a conductive element which constitutes with these parts a variable electrical resistance depending on the level of the liquid contained in the reservoir. The hollow cylindrical body is closed to its lower part by a plug element provided with a liquid filter, and at its upper part by a head element, traversed by a liquid suction tube also passing through the reservoir and through the plug in the lower part .
Dans son essence, le dispositif dont il est question est carac terse par le fait que les parties électriquement résistantes sont constituées d'une reglette plate en matière plastique ou métallique, portant imprimée sur chacune de ses faces une résistance électrique. Les deux résistances qu'elle porte sont mises en contact entre elles à l'aide de l'élément conducteur qui est constitué par des tiges en forme de lames flexibles disposées sur le flotteur. Ces lames sont reliées entre elles par 1 'une de leurs extrémites et mises en contact avec chacune des résistances électriques de la réglette par leur autre ex trémité qui est coulissante.In essence, the device in question is characterized by the fact that the electrically resistant parts consist of a flat ruler in plastic or metallic material, bearing printed on each of its faces an electrical resistance. The two resistances which it carries are brought into contact with each other using the conductive element which is constituted by rods in the form of flexible blades arranged on the float. These blades are interconnected by one of their ends and brought into contact with each of the electrical resistances of the strip by their other end which is sliding.
Selon une autre caractéristique du dispositif dont il s'agit, chaque face de la réglette est dotee en plus d'une ou de plusieurs pistes conductrices imprimées, électriquement resistantes, conçues pour permettre l'indication de différents paramètres, le circuit correspondant étant refermé à l'aide des éléments conducteurs appropriés.According to another characteristic of the device in question, each face of the strip is provided with one or more printed conductive tracks, electrically resistant, designed to allow the indication of different parameters, the corresponding circuit being closed. using the appropriate conductive elements.
D'autres caractéristiques et d'autres avantages du dispositif émetteur faisant l'objet de la présente demande ressortent de la description ci-après et qui correspond aux dessins joints,
il lustrant, à titre d'exemple non limitatif, une façon de réaliser ledit dispositif. Other characteristics and other advantages of the transmitting device which is the subject of the present application appear from the description below and which corresponds to the attached drawings,
it polishing, by way of nonlimiting example, a way of making said device.
La figure 1 est une projection, vue en coupe du dispositif émetteur dont il est question
La figure 2 illustre une vue de dessus du dispositif de la figure 1 ;
Les figures 3 et 4 sont des vues en coupe transversale, selon
III-III et IV-IV, respectivement de la figure 1
La figure 5 est une vue de détail, en coupe et agrandie, des parties électriquement résistantes.Figure 1 is a projection, sectional view of the transmitter device in question
Figure 2 illustrates a top view of the device of Figure 1;
Figures 3 and 4 are cross-sectional views, along
III-III and IV-IV, respectively of figure 1
Figure 5 is a detail view, in section and enlarged, of the electrically resistant parts.
On peut voir sur ces dessins que le dispositif transmetteur dont il s'agit comporte un corps cylindrique creux 1, à 1 'in- térieur duquel se déplace dans le sens ascendant et dans le sens descendant un flotteur 2 qui flotte à la surface du liquide.It can be seen in these drawings that the transmitting device in question comprises a hollow cylindrical body 1, 1 inside which moves in the upward direction and in the downward direction a float 2 which floats on the surface of the liquid .
Ce corps cylindrique creux repère 1 est fermé à sa partie in férieure par un élément formant bouchon 3 muni d'un filtre de combustible 4. A sa partie supérieure il est ferme par un élé- ment de tête 5. Ce corps 1 est traversé par un tube 6 d'aspiration du liquide, traversant également le bouchon inférieur 3 et la tête 5.This hollow cylindrical body marked 1 is closed at its lower part by a plug-forming element 3 provided with a fuel filter 4. At its upper part it is closed by a head element 5. This body 1 is crossed by a liquid suction tube 6, also passing through the lower plug 3 and the head 5.
A l'intérieur du corps cylindrique creux 1 sont placées des parties électriquement résistantes 7, constituées par une re- glette plate en matière plastique ou métallique, portant imprimée sur chacune de ses faces une résistance électrique 10 et 11. Ces deux résistances sont mises en contact entre elles à l'aide de l'élément conducteur 8 cité, composé de tiges en forme de lames flexibles 9, placées sur le flotteur 2, reliées entre elles par l'une de leurs extrémités et faisant contact coulissant par leur autre extrémité avec une des résistances électriques 10 et 11 de la réglette.Inside the hollow cylindrical body 1 are placed electrically resistant parts 7, constituted by a flat rule made of plastic or metal, bearing printed on each of its faces an electrical resistance 10 and 11. These two resistors are placed contact with each other using the aforesaid conductive element 8, composed of rods in the form of flexible blades 9, placed on the float 2, connected to one another by one of their ends and making sliding contact with their other end with one of the electrical resistors 10 and 11 of the strip.
Chaque face de la réglette est munie en plus d'une ou de plusieurs pistes conductrices imprimées 12, électriquement resistantes (figures 3 et 4), conçues pour fournir l'indication de différents paramètres, le circuit correspondant se refermant par les éléments conducteurs 13 constitués par les tiges 14.Each face of the strip is provided in addition with one or more electrically resistant printed conductive tracks 12 (FIGS. 3 and 4), designed to provide the indication of different parameters, the corresponding circuit being closed by the conductive elements 13 made up by the rods 14.
L'élément de tête 2 est moulé en une seule pièce en matière plastique et il est muni à l'intérieur de contacts electriques 16 permettant de transmettre le signal ohmique à l'aiguille d'un appareil de mesure, contacts reliés à des ressorts à lame 15, conçus pour être maintenus en place sous pression sur les résistances des parties électriquement résistantes 7.The head element 2 is molded in a single piece of plastic material and it is provided inside with electrical contacts 16 making it possible to transmit the ohmic signal to the needle of a measuring device, contacts connected to springs at blade 15, designed to be held in place under pressure on the resistors of the electrically resistant parts 7.
L'élément de tête 2 comporte en outre un passage 17 recevant le tube d'aspiration du liquide, le tuyau de refoulement 18 du liquide en excès, un tube d'aération 19 et un autre tuyau de refoulement 20 permettant d'éviter la formation de mousse à la surface du liquide.The head element 2 further comprises a passage 17 receiving the liquid suction tube, the delivery pipe 18 for the excess liquid, a ventilation pipe 19 and another delivery pipe 20 making it possible to avoid the formation foam on the surface of the liquid.
La paroi du corps cylindrique creux l'est constituée par une feuille enroulée sur elle-même, de matiere plastique ou metallique.The wall of the hollow cylindrical body is constituted by a sheet wound on itself, of plastic or metallic material.
La figure 5 montre un détail d'une réalisation particulière des éléments électriquement résistants 7 cités plus haut, dans laquelle ceux-ci sont constitués par deux réglettes plates 21 en matière plastique ou métallique, portant chacune imprimée sur une de le-urs faces au moins une résistance électrique.FIG. 5 shows a detail of a particular embodiment of the electrically resistant elements 7 mentioned above, in which these consist of two flat strips 21 of plastic or metallic material, each bearing printed on at least one of their faces an electrical resistance.
Les deux réglettes 21- sont'mises dos à dos par leur face 22 qui ne portent pas de résistance, dentelle sorte qu'elles s-ont mises en contact entre elles grâce à 1 'élément conducteur cité 8 et 13, constitué par une paire de tiges en forme de lames flexibles 9 et 14, placees sur le flotteur 2, mises en contact entre elles par une de leurs extrémités et l'autre extrémité étant en contact coulissant avec la résistance électrique correspondante de l'une des réglettes 21.The two strips 21- are put back to back by their face 22 which do not carry resistance, lace so that they are put in contact with each other thanks to the conductive element cited 8 and 13, constituted by a pair rods in the form of flexible blades 9 and 14, placed on the float 2, brought into contact with one another by one of their ends and the other end being in sliding contact with the corresponding electrical resistance of one of the strips 21.
Dans ce cas, la position mutuelle dos à dos des réglettes 21 est réglable dans le sens longitudinal et ce afin de graduer lors du montage la valeur de la résistance de chacune d'elles.In this case, the mutual back-to-back position of the strips 21 is adjustable in the longitudinal direction and this in order to graduate during mounting the value of the resistance of each of them.
Un réglage préalable de la valeur de la résistance de la ou des réglettes pourrait également être réalisé par la suppression d'une partie du circuit imprimé de chacune d'elles.A prior adjustment of the resistance value of the strip (s) could also be carried out by removing a part of the printed circuit from each of them.
Il est signalé expressement que tout ce qui n'altérerait, ne changerait ou ne modifierait pas l'essentiel du dispositif émetteur du signal électrique de niveau de liquide dans des réservoirs décrit ci-avant, peut être l'objet de variation de détail. It is expressly pointed out that anything which does not alter, do not change or does not modify the essentials of the device emitting the electrical signal of liquid level in tanks described above, may be subject to variation in detail.
Claims (7)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES1982268109U ES268109U (en) | 1982-10-08 | 1982-10-08 | Transmitter device of the electrical signal of liquid level in deposits. (Machine-translation by Google Translate, not legally binding) |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2534375A1 true FR2534375A1 (en) | 1984-04-13 |
FR2534375B1 FR2534375B1 (en) | 1987-07-31 |
Family
ID=8422647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8315672A Expired FR2534375B1 (en) | 1982-10-08 | 1983-09-30 | DEVICE FOR TRANSMITTING AN ELECTRICAL SIGNAL CORRESPONDING TO A LIQUID LEVEL |
Country Status (4)
Country | Link |
---|---|
ES (1) | ES268109U (en) |
FR (1) | FR2534375B1 (en) |
IT (1) | IT1166536B (en) |
MX (1) | MX154173A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2550338A1 (en) * | 1983-07-13 | 1985-02-08 | Jaeger Iberica | Device for transmitting a liquid level incorporating means for adjusting the resistance-level curve |
EP0179220A1 (en) * | 1984-10-25 | 1986-04-30 | VDO Adolf Schindling AG | Apparatus for measuring the filling level of a liquid in a container |
FR2578049A1 (en) * | 1985-02-25 | 1986-08-29 | Jaeger | Improved device for measuring the level of liquid in a tank with indexing on the bottom |
EP0275240A2 (en) * | 1987-01-16 | 1988-07-20 | FIAT AUTO S.p.A. | A method for determining and indicating the volume of fuel in the tank of a motor vehicle |
FR2628526A1 (en) * | 1988-03-09 | 1989-09-15 | Peugeot | Potentiometer and electrical contact liquid level indicator - has metal contact fingers with plastic coating which expands on immersion in liquid |
FR2658910A1 (en) * | 1990-02-23 | 1991-08-30 | Veglia Borletti Srl | DEVICE FOR MEASURING THE FUEL LEVEL IN A MOTOR VEHICLE TANK. |
WO1993025870A1 (en) * | 1992-06-15 | 1993-12-23 | Scandmec Ab | Electrical connector for a liquid level indicator |
WO1996041136A1 (en) * | 1995-06-07 | 1996-12-19 | Rochester Gauges, Inc. | Liquid level gauge assembly including potentiometer with conductive polymeric element |
US5812048A (en) * | 1993-11-24 | 1998-09-22 | Rochester Gauges, Inc. | Linear positioning indicator |
US5907273A (en) * | 1993-11-24 | 1999-05-25 | Rochester Gauges, Inc. | Linear positioning indicator |
EP3865831A1 (en) * | 2020-02-13 | 2021-08-18 | Michael Saier | Suction lance |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB474766A (en) * | 1936-05-06 | 1937-11-08 | Ian Richard Cameron | Improvements in or relating to liquid level indicators |
FR1373284A (en) * | 1963-10-03 | 1964-09-25 | Gen Motors Corp | Liquid level indicator |
DE1655517B1 (en) * | 1966-02-04 | 1970-04-30 | Vdo Schindling | Immersion tube transmitter for an electrical tank content measurement in motor vehicles |
EP0038894A2 (en) * | 1980-03-15 | 1981-11-04 | Nippon Mektron, Ltd. | Fuel level gauge |
EP0055312A2 (en) * | 1980-12-30 | 1982-07-07 | Nippon Mektron, Ltd. | Resistance body of vertically set fuel gauge and support structure thereof |
US4342224A (en) * | 1978-11-09 | 1982-08-03 | Nifco Inc. | Housing unit for liquid gauge and strainer |
FR2503861A1 (en) * | 1981-04-08 | 1982-10-15 | Jaeger Iberica | Fuel level indicator, e.g. for vehicle tank - uses apertured cylinder in which float moves against pair of resistive plates to form variable resistance as function of fuel level |
-
1982
- 1982-10-08 ES ES1982268109U patent/ES268109U/en active Pending
-
1983
- 1983-09-28 MX MX198877A patent/MX154173A/en unknown
- 1983-09-30 FR FR8315672A patent/FR2534375B1/en not_active Expired
- 1983-10-05 IT IT23144/83A patent/IT1166536B/en active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB474766A (en) * | 1936-05-06 | 1937-11-08 | Ian Richard Cameron | Improvements in or relating to liquid level indicators |
FR1373284A (en) * | 1963-10-03 | 1964-09-25 | Gen Motors Corp | Liquid level indicator |
DE1655517B1 (en) * | 1966-02-04 | 1970-04-30 | Vdo Schindling | Immersion tube transmitter for an electrical tank content measurement in motor vehicles |
US4342224A (en) * | 1978-11-09 | 1982-08-03 | Nifco Inc. | Housing unit for liquid gauge and strainer |
EP0038894A2 (en) * | 1980-03-15 | 1981-11-04 | Nippon Mektron, Ltd. | Fuel level gauge |
EP0055312A2 (en) * | 1980-12-30 | 1982-07-07 | Nippon Mektron, Ltd. | Resistance body of vertically set fuel gauge and support structure thereof |
FR2503861A1 (en) * | 1981-04-08 | 1982-10-15 | Jaeger Iberica | Fuel level indicator, e.g. for vehicle tank - uses apertured cylinder in which float moves against pair of resistive plates to form variable resistance as function of fuel level |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2550338A1 (en) * | 1983-07-13 | 1985-02-08 | Jaeger Iberica | Device for transmitting a liquid level incorporating means for adjusting the resistance-level curve |
EP0179220A1 (en) * | 1984-10-25 | 1986-04-30 | VDO Adolf Schindling AG | Apparatus for measuring the filling level of a liquid in a container |
FR2578049A1 (en) * | 1985-02-25 | 1986-08-29 | Jaeger | Improved device for measuring the level of liquid in a tank with indexing on the bottom |
US4912646A (en) * | 1987-01-16 | 1990-03-27 | Fiat Auto S.P.A. | Method for detecting the fuel level in the tank of a motor vehicle |
EP0275240A3 (en) * | 1987-01-16 | 1988-08-10 | Fiat Auto S.P.A. | A method for detecting the fuel level in the tank of a motor vehicle |
EP0275240A2 (en) * | 1987-01-16 | 1988-07-20 | FIAT AUTO S.p.A. | A method for determining and indicating the volume of fuel in the tank of a motor vehicle |
FR2628526A1 (en) * | 1988-03-09 | 1989-09-15 | Peugeot | Potentiometer and electrical contact liquid level indicator - has metal contact fingers with plastic coating which expands on immersion in liquid |
FR2658910A1 (en) * | 1990-02-23 | 1991-08-30 | Veglia Borletti Srl | DEVICE FOR MEASURING THE FUEL LEVEL IN A MOTOR VEHICLE TANK. |
WO1993025870A1 (en) * | 1992-06-15 | 1993-12-23 | Scandmec Ab | Electrical connector for a liquid level indicator |
US5812048A (en) * | 1993-11-24 | 1998-09-22 | Rochester Gauges, Inc. | Linear positioning indicator |
US5907273A (en) * | 1993-11-24 | 1999-05-25 | Rochester Gauges, Inc. | Linear positioning indicator |
WO1996041136A1 (en) * | 1995-06-07 | 1996-12-19 | Rochester Gauges, Inc. | Liquid level gauge assembly including potentiometer with conductive polymeric element |
EP3865831A1 (en) * | 2020-02-13 | 2021-08-18 | Michael Saier | Suction lance |
Also Published As
Publication number | Publication date |
---|---|
IT8323144A0 (en) | 1983-10-05 |
FR2534375B1 (en) | 1987-07-31 |
IT1166536B (en) | 1987-05-06 |
MX154173A (en) | 1987-05-29 |
ES268109U (en) | 1983-06-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
AR | Application made for restoration | ||
BR | Restoration of rights | ||
ST | Notification of lapse |