FR2441152A1 - Dispositif detecteur de niveau pour liquides dielectriques - Google Patents

Dispositif detecteur de niveau pour liquides dielectriques

Info

Publication number
FR2441152A1
FR2441152A1 FR7927432A FR7927432A FR2441152A1 FR 2441152 A1 FR2441152 A1 FR 2441152A1 FR 7927432 A FR7927432 A FR 7927432A FR 7927432 A FR7927432 A FR 7927432A FR 2441152 A1 FR2441152 A1 FR 2441152A1
Authority
FR
France
Prior art keywords
liquid
predetermined level
level
sensor device
level sensor
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
FR7927432A
Other languages
English (en)
Other versions
FR2441152B1 (fr
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.)
Fratelli Borletti SpA
Borletti SpA
Original Assignee
Fratelli Borletti SpA
Borletti 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 Fratelli Borletti SpA, Borletti SpA filed Critical Fratelli Borletti SpA
Publication of FR2441152A1 publication Critical patent/FR2441152A1/fr
Application granted granted Critical
Publication of FR2441152B1 publication Critical patent/FR2441152B1/fr
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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/18—Switches operated by change of liquid level or of liquid density, e.g. float switch
    • H01H35/183—Switches operated by change of liquid level or of liquid density, e.g. float switch making use of a thermal switch

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 Details And Ventilation Of Internal Combustion Engines (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

LA PRESENTE INVENTION CONCERNE UN DISPOSITIF SERVANT A DETECTER LA PRESENCE D'UN LIQUIDE DIELECTRIQUE A UN NIVEAU PREDETERMINE. CE DISPOSITIF COMPREND UN PREMIER ET UN DEUXIEME BILAMES DISPOSES FACE A FACE ET CONCUS POUR ACTIVER DES MOYENS ELECTRIQUES D'INDICATION, A LA SUITE DE L'OUVERTURE OU DE LA FERMETURE D'UN CONTACT ELECTRIQUE ENTRE EUX, UNE RESISTANCE CHAUFFANTE A PROXIMITE DU DEUXIEME BILAME, A UN NIVEAU EGAL AU NIVEAU PREDETERMINE, QUI, SI LE NIVEAU DU LIQUIDE EST INFERIEUR AU NIVEAU PREDETERMINE, CHAUFFE LE DEUXIEME BILAME QUI SE COURBE PLUS QUE LE PREMIER DE MANIERE A OUVRIR OU A FERMER LE CONTACT ELECTRIQUE, TANDIS QUE SI LE LIQUIDE DEPASSE LE NIVEAU PREDETERMINE, L'ENERGIE THERMIQUE EST PRATIQUEMENT DISSIPEE PAR LE LIQUIDE ET NE CAUSE DONC PAS L'ACTIVATION DES MOYENS D'INDICATION. L'INVENTION S'APPLIQUE NOTAMMENT AUX AUTOMOBILES.
FR7927432A 1978-11-07 1979-11-07 Dispositif detecteur de niveau pour liquides dielectriques Expired FR2441152B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT7853869U IT7853869V0 (it) 1978-11-07 1978-11-07 Dispositivo sensore di livello per liquidi dielettrici

Publications (2)

Publication Number Publication Date
FR2441152A1 true FR2441152A1 (fr) 1980-06-06
FR2441152B1 FR2441152B1 (fr) 1985-11-08

Family

ID=11285679

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7927432A Expired FR2441152B1 (fr) 1978-11-07 1979-11-07 Dispositif detecteur de niveau pour liquides dielectriques

Country Status (6)

Country Link
US (1) US4313102A (fr)
AR (1) AR222668A1 (fr)
DE (1) DE2944356A1 (fr)
FR (1) FR2441152B1 (fr)
GB (1) GB2036440B (fr)
IT (1) IT7853869V0 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60141521U (ja) * 1984-02-29 1985-09-19 株式会社　土屋製作所 警告装置付きのオイルレベルゲ−ジ
US4745895A (en) * 1985-10-15 1988-05-24 Briggs & Stratton Corp. Liquid monitoring apparatus
US4741362A (en) * 1986-08-20 1988-05-03 Deere & Company Fuel tank for an off-road vehicle
DE3722667A1 (de) * 1987-07-09 1987-10-29 Gok Gmbh & Co Kg Gasentnahmeventil fuer fluessiggasbehaelter
US4844117A (en) * 1989-01-02 1989-07-04 Ncr Corporation Fluid level controller
EP0474905A1 (fr) * 1990-09-13 1992-03-18 VDO Adolf Schindling AG Interrupteur de niveau
US5111691A (en) * 1990-12-20 1992-05-12 Itt Corporation Conductance/thermal limit control apparatus and method
DE10040739B8 (de) * 2000-08-17 2012-09-06 Continental Automotive Gmbh Sensor zur Bestimmung des Niveaus und der Temperatur einer Flüssigkeit
CN110112623B (zh) * 2019-06-11 2020-11-20 江苏棠云智能网络科技有限公司 一种具有自动断电功能的空调插头

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1436541A (fr) * 1964-06-15 1966-04-22 Flygts Pumpar Ab Dispositif détecteur pour indiquer un niveau de liquide
DE2263796A1 (de) * 1972-12-28 1974-07-04 Moto Meter Gmbh Oelstandschalter
US3938347A (en) * 1974-04-12 1976-02-17 Optical Coating Laboratory, Inc. Level control apparatus and method for cryogenic liquids

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769121A (en) * 1953-08-13 1956-10-30 Mcdermott Controls Inc Electrical instruments
US2782285A (en) * 1954-09-13 1957-02-19 Fenwal Inc Air flow and liquid level detection and control apparatus
DE1754669U (de) * 1957-07-05 1957-10-24 Christian Schwaiger Elektrotei Elektrischer reserverfuehler fuer kraftstoffbehaelter.
DE1183261B (de) * 1959-06-05 1964-12-10 Vdo Schindling Vorrichtung zum Anzeigen des Mindeststandes in einem Behaelter fuer elektrisch nichtleitende Fluessigkeiten
US3098914A (en) * 1961-04-27 1963-07-23 Amedio W Giannino Oil level warning devices
US3171934A (en) * 1963-03-14 1965-03-02 Gen Motors Corp Liquid presence and temperature switch
US3335243A (en) * 1965-01-26 1967-08-08 Gen Motors Corp Bimetal indicator device with a heater energized under all operative conditions
US3432840A (en) * 1965-09-28 1969-03-11 Motorola Inc Fluid level indicator
US3701138A (en) * 1971-03-25 1972-10-24 Data Eng Inc Fluid level sensor and system
US3772673A (en) * 1972-03-20 1973-11-13 Gte Sylvania Inc Temperature compensated fluid level sensor
GB1450895A (en) * 1972-11-17 1976-09-29 Lucas Electrical Ltd Liquid level detection systems
JPS55685B2 (fr) * 1973-02-08 1980-01-09
US3810143A (en) * 1973-04-09 1974-05-07 Gte Sylvania Inc Temperature compensated fluid sensor
US3922658A (en) * 1974-12-04 1975-11-25 Bendix Corp Fluid level monitor
US3962665A (en) * 1975-02-13 1976-06-08 Ideal Corporation Thermally actuated liquid level sensor
GB1513300A (en) * 1975-12-18 1978-06-07 Amp Inc Electrical slide switch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1436541A (fr) * 1964-06-15 1966-04-22 Flygts Pumpar Ab Dispositif détecteur pour indiquer un niveau de liquide
DE2263796A1 (de) * 1972-12-28 1974-07-04 Moto Meter Gmbh Oelstandschalter
US3938347A (en) * 1974-04-12 1976-02-17 Optical Coating Laboratory, Inc. Level control apparatus and method for cryogenic liquids

Also Published As

Publication number Publication date
FR2441152B1 (fr) 1985-11-08
DE2944356A1 (de) 1980-05-14
GB2036440B (en) 1983-07-20
IT7853869V0 (it) 1978-11-07
US4313102A (en) 1982-01-26
AR222668A1 (es) 1981-06-15
GB2036440A (en) 1980-06-25

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Legal Events

Date Code Title Description
CA Change of address
TP Transmission of property
ST Notification of lapse