ITMI20091957A1 - DEVICE FOR DETECTION AND SIGNALING OF THE LEVEL OF A FLUID PRESENT INSIDE A TANK - Google Patents
DEVICE FOR DETECTION AND SIGNALING OF THE LEVEL OF A FLUID PRESENT INSIDE A TANK Download PDFInfo
- Publication number
- ITMI20091957A1 ITMI20091957A1 IT001957A ITMI20091957A ITMI20091957A1 IT MI20091957 A1 ITMI20091957 A1 IT MI20091957A1 IT 001957 A IT001957 A IT 001957A IT MI20091957 A ITMI20091957 A IT MI20091957A IT MI20091957 A1 ITMI20091957 A1 IT MI20091957A1
- Authority
- IT
- Italy
- Prior art keywords
- tank
- level
- sensor
- signal
- fluid
- Prior art date
Links
- 239000012530 fluid Substances 0.000 title claims description 19
- 230000011664 signaling Effects 0.000 title claims description 7
- 238000001514 detection method Methods 0.000 title description 3
- 239000000446 fuel Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- -1 but not exclusively Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
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
- G01F23/265—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 for discrete levels
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Description
DESCRIZIONE del Brevetto per Invenzione Industriale DESCRIPTION of the Patent for Industrial Invention
Forma oggetto del presente trovato un dispositivo di rilevazione e segnalazione del livello di un fluido presente all'interno di un serbatoio. The present invention relates to a device for detecting and signaling the level of a fluid present inside a tank.
E' nota, nel settore tecnico della produzione di veicoli la necessità di predisporre dispositivi di rilevazione del livello del carburante contenuto nel serbatoio e di associare gli stessi a mezzi di segnalazione di un livello minimo cosiddetto di riserva. In the technical sector of vehicle production it is known the need to provide devices for detecting the level of the fuel contained in the tank and to associate the same with means for signaling a so-called minimum reserve level.
Sono anche noti dispositivi adatti allo scopo che vengono alloggiati all'interno del serbatoio stesso e sono atti ad inviare un segnale in funzione del livello del carburante. Devices suitable for this purpose are also known which are housed inside the tank itself and are able to send a signal as a function of the fuel level.
Tali dispositivi noti interni risultano tuttavia inadatti in molteplici applicazioni, come ad esempio per certe categorie di veicoli a due ruote, per le quali le ridotte dimensioni del serbatoio non consentono di alloggiare i detti dispositivi all'interno del serbatoio. However, these known internal devices are unsuitable in many applications, such as for certain categories of two-wheeled vehicles, for which the small size of the tank does not allow the devices to be housed inside the tank.
Si pone pertanto il problema tecnico di realizzare un dispositivo di rilevazione del livello di un fluido, particolarmente, ma non esclusivamente carburante, all'interno di un serbatoio, particolarmente, ma non esclusivamente, di un veicolo a due ruote. The technical problem therefore arises of providing a device for detecting the level of a fluid, particularly, but not exclusively, fuel, inside a tank, particularly, but not exclusively, of a two-wheeled vehicle.
Nell'ambito di tale problema si richiede inoltre che tale dispositivo sia di contenuti ingombri, di facile ed economica produzione ed assemblaggio e facilmente installabile anche in relazione a serbatoi già esistenti e non specificatamente progettati senza necessità di speciali mezzi di adattamento e/o connessione. Within the scope of this problem, it is also required that this device be small in size, easy and economical to produce and assemble, and can be easily installed also in relation to existing and not specifically designed tanks without the need for special means of adaptation and / or connection.
Tali risultati sono ottenuti secondo il presente trovato da un dispositivo di rilevazione e segnalazione del livello di un fluido presente all'interno di un serbatoio, comprendente un sensore applicato esternamente al serbatoio ad una prefissato livello dello stesso, detto sensore essendo atto a rilevare le variazioni nel tempo del livello del pelo libero del fluido e ad emettere un corrispondente segnale elettrico. These results are obtained according to the present invention by a device for detecting and signaling the level of a fluid present inside a tank, comprising a sensor applied externally to the tank at a predetermined level of the same, said sensor being able to detect the variations over time of the level of the free surface of the fluid and to emit a corresponding electrical signal.
Maggiori dettagli potranno essere rilevati dalla seguente descrizione di un esempio non limitativo di attuazione dell'oggetto del presente trovato effettuata con riferimento ai disegni allegati, in cui si mostra: More details can be found from the following description of a non-limiting example of embodiment of the object of the present invention made with reference to the attached drawings, which show:
in figura 1 : un diagramma a blocchi schematico di un dispositivo di segnalazione del livello di un fluido secondo il presente trovato con livello del fluido alto e in Figure 1: a schematic block diagram of a fluid level signaling device according to the present invention with a high fluid level and
in figura 2 : uno schema a blocchi analogo a quello di fig. 1 con livello del fluido basso. in figure 2: a block diagram similar to that of fig. 1 with low fluid level.
Come illustrato in fig.l il dispositivo di rilevazione del livello del carburante 11 presente all'interno di un serbatoio 10 comprende: As shown in Fig. 1, the fuel level detection device 11 present inside a tank 10 comprises:
+)un sensore, preferibilmente capacitivo 20, disposto in corrispondenza della superficie laterale IOa del serbatoio ad una prefissata altezza dal fondo 10b dello stesso e atto ad emettere un segnale elettrico 21 al variare del livello del carburante; +) a sensor, preferably capacitive 20, arranged in correspondence with the lateral surface 10a of the tank at a predetermined height from the bottom 10b of the same and able to emit an electric signal 21 as the fuel level varies;
in particolare detto sensore 20 è atto a rilevare le variazioni di livello del pelo libero Ila del fluido 11 e ad emettere corrispondenti segnali come risulterà meglio evidente nel seguito. in particular, said sensor 20 is suitable for detecting the level variations of the free surface 11a of the fluid 11 and for emitting corresponding signals as will become clearer in the following.
+) un microprocessore 31 atto a ricevere detto segnale 21 emesso dal sensore e integrato in un pannello di controllo 30 comprendente anche un display 32; +) a microprocessor 31 adapted to receive said signal 21 emitted by the sensor and integrated in a control panel 30 also comprising a display 32;
+) una spia luminosa 33 inserita nel pannello 30 e collegata al detto microprocessore 31; +) an indicator light 33 inserted in the panel 30 and connected to said microprocessor 31;
+) un tasto 34 di spegnimento della spia luminosa 33 e di reset del dispositivo. +) a button 34 for turning off the indicator light 33 and for resetting the device.
Con tale configurazione il funzionamento del dispositivo è il seguente: With this configuration, the operation of the device is as follows:
-) in condizioni di serbatoio pieno (fig.l) la spia luminosa 33 è spenta e il pelo libero Ila del fluido si trova al di sopra del sensore 20 che rileva una massa costante all'interno del serbatoio, generando un segnale 21a continuo nel tempo; -) in full tank conditions (fig. 1) the indicator light 33 is off and the free surface 11a of the fluid is located above the sensor 20 which detects a constant mass inside the tank, generating a continuous signal 21a in the time;
-) tale segnale continuo 2la viene ricevuto dal microprocessore 31 che, non rilevando variazioni, rimane in attesa senza prendere azioni; -) this continuous signal 21a is received by the microprocessor 31 which, not detecting variations, remains on hold without taking any action;
-) quando il livello del fluido 11 si abbassa fino a raggiungere la posizione corrispondente al sensore 20, il pelo libero Ila del fluido subisce delle ondulazioni dovute al movimento del serbatoio 10 e determina un rilevamento variabile da parte del sensore 20 che emette a sua volta un segnale 21b con una marcata variabilità nel tempo; -) when the level of the fluid 11 is lowered until it reaches the position corresponding to the sensor 20, the free surface 11a of the fluid undergoes undulations due to the movement of the tank 10 and determines a variable detection by the sensor 20 which in turn emits a signal 21b with a marked variability over time;
-) tale segnale 21b variabile viene ricevuto dal microprocessore 31 che interpreta lo stesso come corrispondente ad un livello basso o di inizio riserva del fluido nel serbatoio e accende la spia luminosa 33; -) this variable signal 21b is received by the microprocessor 31 which interprets it as corresponding to a low level or the start of reserve of the fluid in the tank and turns on the indicator light 33;
-) quando il fluido nel serbatoio 10 viene reintegrato fino ad un livello superiore a quello del sensore 20, il segnale emesso da quest'ultimo torna continuo e il microprocessore attiva il pulsante 34 di reset per consentire il ripristino manuale delle condizioni iniziali e lo spegnimento della spia luminosa. -) when the fluid in the tank 10 is reintegrated up to a level higher than that of the sensor 20, the signal emitted by the latter returns to be continuous and the microprocessor activates the reset button 34 to allow manual reset of the initial conditions and shutdown the indicator light.
Preferibilmente si considera confermato il segnale di riserva se la variabilità del segnale si mantiene per un periodo di tempo prefissato, ad esempio compreso tra 35 e 55 sec., all'interno di periodo di tempo sufficientemente lungo ad esempio compreso tra 1,5 e 3 min. Preferably the reserve signal is considered confirmed if the variability of the signal is maintained for a predetermined period of time, for example between 35 and 55 sec., Within a sufficiently long period of time, for example between 1.5 and 3 min.
Il dispositivo secondo il trovato si è rivelato particolarmente efficace nelle applicazioni a serbatoi di carburante di veicoli a due ruote per i quali i dispositivi noti risultano di difficile applicazione . The device according to the invention has proved to be particularly effective in applications to fuel tanks of two-wheeled vehicles for which known devices are difficult to apply.
Risulta pertanto come il dispositivo secondo il presente trovato per la rilevazione e segnalazione del livello di un fluido presente all'interno di un serbatoio risulti particolarmente efficace e semplice da applicare anche a serbatoi già esistenti non richiedendo alcuna azione interna agli stessi. It therefore appears that the device according to the present invention for detecting and signaling the level of a fluid present inside a tank is particularly effective and simple to apply even to already existing tanks, as it does not require any internal action thereto.
Benché descritta nel contesto di alcune forme di realizzazione e di alcuni esempi preferiti di attuazione dell'invenzione si intende che l'ambito di protezione del presente brevetto sia determinato solo dalle rivendicazioni che seguono. Although described in the context of some embodiments and some preferred examples of embodiment of the invention, it is intended that the scope of protection of the present patent is determined only by the following claims.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT001957A ITMI20091957A1 (en) | 2009-11-09 | 2009-11-09 | DEVICE FOR DETECTION AND SIGNALING OF THE LEVEL OF A FLUID PRESENT INSIDE A TANK |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT001957A ITMI20091957A1 (en) | 2009-11-09 | 2009-11-09 | DEVICE FOR DETECTION AND SIGNALING OF THE LEVEL OF A FLUID PRESENT INSIDE A TANK |
Publications (1)
Publication Number | Publication Date |
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ITMI20091957A1 true ITMI20091957A1 (en) | 2011-05-10 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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IT001957A ITMI20091957A1 (en) | 2009-11-09 | 2009-11-09 | DEVICE FOR DETECTION AND SIGNALING OF THE LEVEL OF A FLUID PRESENT INSIDE A TANK |
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IT (1) | ITMI20091957A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2312020A1 (en) * | 1975-05-17 | 1976-12-17 | Braun Melsungen Ag | Apparatus checking filling level in transparent pipes - has optical switching device which consisting of optical transmitter and receivers on either side of pipe |
US5182545A (en) * | 1989-01-06 | 1993-01-26 | Standex International Corporation | Fluid level sensor having capacitive sensor |
FR2684179A1 (en) * | 1991-11-27 | 1993-05-28 | Marelli Autronica | Indicator device for motor vehicle, especially for visually displaying a fuel warning |
US20050279287A1 (en) * | 2004-06-01 | 2005-12-22 | Kroeker Randall W | Water container in combination with a water level alerting apparatus |
WO2009019150A1 (en) * | 2007-08-07 | 2009-02-12 | Sulzer Pumpen Ag | Method of and apparatus for controlling the height of a column of material in a vessel upstream of a pump |
WO2009112519A2 (en) * | 2008-03-11 | 2009-09-17 | I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini | Evaporator of condensed fluids |
-
2009
- 2009-11-09 IT IT001957A patent/ITMI20091957A1/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2312020A1 (en) * | 1975-05-17 | 1976-12-17 | Braun Melsungen Ag | Apparatus checking filling level in transparent pipes - has optical switching device which consisting of optical transmitter and receivers on either side of pipe |
US5182545A (en) * | 1989-01-06 | 1993-01-26 | Standex International Corporation | Fluid level sensor having capacitive sensor |
FR2684179A1 (en) * | 1991-11-27 | 1993-05-28 | Marelli Autronica | Indicator device for motor vehicle, especially for visually displaying a fuel warning |
US20050279287A1 (en) * | 2004-06-01 | 2005-12-22 | Kroeker Randall W | Water container in combination with a water level alerting apparatus |
WO2009019150A1 (en) * | 2007-08-07 | 2009-02-12 | Sulzer Pumpen Ag | Method of and apparatus for controlling the height of a column of material in a vessel upstream of a pump |
WO2009112519A2 (en) * | 2008-03-11 | 2009-09-17 | I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini | Evaporator of condensed fluids |
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