ES282188U - Dispositivo medidor de nivel para liquidos - Google Patents

Dispositivo medidor de nivel para liquidos

Info

Publication number
ES282188U
ES282188U ES1984282188U ES282188U ES282188U ES 282188 U ES282188 U ES 282188U ES 1984282188 U ES1984282188 U ES 1984282188U ES 282188 U ES282188 U ES 282188U ES 282188 U ES282188 U ES 282188U
Authority
ES
Spain
Prior art keywords
level
liquids
internal combustion
measuring device
combustion engines
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
Application number
ES1984282188U
Other languages
English (en)
Other versions
ES282188Y (es
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.)
Foredit SpA
Original Assignee
Foredit SpA
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 Foredit SpA filed Critical Foredit SpA
Publication of ES282188U publication Critical patent/ES282188U/es
Application granted granted Critical
Publication of ES282188Y publication Critical patent/ES282188Y/es
Expired 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
    • G01F23/24—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

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

Dispositivo medidor de nivel para líquidos, apto para detectar el descenso de dicho nivel por debajo de un nivel de umbral predeterminado, caracterizado por comprender: una sonda detectora (4) que lleva asociado un elemento calefactor eléctrico (5), activable selectivamente; dicha sonda (4) es ap.a para ser introducida, en el empleo, en dicho líquido (L), en tal disposición que el calor generado por el elemento calefactor (5) en el momento de su activación se disipe en el líquido (L) en grado diferenciado según cuál sea el nivel de dicho líquido (L), respectivamente encima o debajo de dicho nivel de umbral (L); un primer elemento sensor termoeléctrico (6) y un segundo elemento sensor termoeléctrico (7) para la detección de la temperatura del líquido (L), montados en dicha sonda (4) en tal disposición que dicho primer elemento sensor (6) sea capaz de detectar la temperatura alcanzada por el elemento calefactor (5) en el momento de su activación y un circuito eléctrico de mando y de elaboración (9), que comprende una unidad de alimentación (12, 13) para la activación de dicho elemento calefactor eléctrico (5), una unidad comparadora (14, 15), alimentada con señales producidas por dicho primer elemento (6) y dicho segundo elemento (7) sensor termoeléctrico y capaz de generar una señal (V1) indicadora de la diferencia entre la temperatura detectada por dicho primer elemento sensor (6) y la temperatura detectada por dicho segundo elemento sensor (7), de confrontar dicha señal de diferencia (V1) con una señal de referencia predeterminada (V T) y de producir una señal de alarma (V2) cuando dicha serial de diferencia (V1) llega al nivel de dicha señal de referencia (V T), y una unidad temporizadora (11), capaz de gobernar en secuencia el funcionamiento de dicha unidad de alimentación (12, 13) y de dicha unidad comparadora (14, 15).
ES1984282188U 1983-10-14 1984-10-11 Dispositivo medidor de nivel para liquidos Expired ES282188Y (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5382383U IT8353823V0 (it) 1983-10-14 1983-10-14 Dispositivo misuratore di livello per liquidi particolarmente per la rilevazione del livello del lubrificante in motori a combustione interna

Publications (2)

Publication Number Publication Date
ES282188U true ES282188U (es) 1985-05-01
ES282188Y ES282188Y (es) 1985-12-16

Family

ID=11285402

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1984282188U Expired ES282188Y (es) 1983-10-14 1984-10-11 Dispositivo medidor de nivel para liquidos

Country Status (3)

Country Link
EP (1) EP0140844A3 (es)
ES (1) ES282188Y (es)
IT (1) IT8353823V0 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7687743B2 (en) * 2003-10-23 2010-03-30 Ravarini Castoldi & C. S.R.L. Apparatus and method for heating and melting solid lubricants in the delivery drum
SE541129C2 (en) 2017-11-01 2019-04-16 Husqvarna Ab Lubrication monitoring arrangement, hand-held cutting tool and method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1521579A (fr) * 1967-03-09 1968-04-19 Dispositif perfectionné pour la détection et la commande du niveau d'un fluide dans un réservoir
DE2012042A1 (de) * 1970-03-13 1971-09-30 Euratom Thermoelektrische Sonde zur Detektion von Flüssigkeit in einem gasförmigen Medium
GB1480349A (en) * 1973-12-28 1977-07-20 Apv Co Ltd Liquid detectors
US3922658A (en) * 1974-12-04 1975-11-25 Bendix Corp Fluid level monitor
DE2510356C2 (de) * 1975-03-10 1984-03-15 Siemens AG, 1000 Berlin und 8000 München Einrichtung zur Überwachung des Flüssigkeitsstandes in einem Behälter
US4016758A (en) * 1975-09-09 1977-04-12 Taylor Julian S Thermal gauge probe

Also Published As

Publication number Publication date
EP0140844A2 (en) 1985-05-08
EP0140844A3 (en) 1986-12-17
IT8353823V0 (it) 1983-10-14
ES282188Y (es) 1985-12-16

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