FR2439390A1 - DEVICES FOR INDICATING THE LEVEL OF A FLUID - Google Patents

DEVICES FOR INDICATING THE LEVEL OF A FLUID

Info

Publication number
FR2439390A1
FR2439390A1 FR7925456A FR7925456A FR2439390A1 FR 2439390 A1 FR2439390 A1 FR 2439390A1 FR 7925456 A FR7925456 A FR 7925456A FR 7925456 A FR7925456 A FR 7925456A FR 2439390 A1 FR2439390 A1 FR 2439390A1
Authority
FR
France
Prior art keywords
fluid
organ
level
vehicles
vehicle
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Withdrawn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
FR7925456A
Other languages
French (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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of FR2439390A1 publication Critical patent/FR2439390A1/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Withdrawn legal-status Critical Current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
    • G01F23/14—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 measurement of pressure
    • G01F23/18—Indicating, recording or alarm devices actuated electrically
    • G01F23/185—Indicating, recording or alarm devices actuated electrically for discrete levels

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

L'INVENTION CONCERNANT SURTOUT LE FREINAGE DES VEHICULES. DISPOSITIF INDICATEUR DE NIVEAU DE FLUIDE, INCORPORE DANS LA COIFFE DE REMPLISSAGE 6 D'UN RESERVOIR TANDEM D'UN SYSTEME DE FREINAGE DE VEHICULE, COMPRENANT UN ORGANE CREUX 12 DISPOSE DE FACON A ETRE MIS SOUS PRESSION A L'INTERIEUR, EN IMMERGEANT L'ORGANE DANS LE FLUIDE ET A UNE PRESSION PROPORTIONNELLE A LA CHARGE H ENTRE LES NIVEAUX DE FLUIDE A, B, A L'INTERIEUR ET A L'EXTERIEUR DE L'ORGANE 12. UN DIAPHRAGME 15, A L'INTERIEUR DE L'ORGANE 12, REPOND AUX VARIATIONS DE PRESSION A SON INTERIEUR POUR ACTIONNER UN INTERRUPTEUR ELECTRIQUE 21, 22 QUI EMET UN SIGNAL D'ALERTE. L'ORGANE INCLUT DEUX ELEMENTS 13 DISPOSES POUR ETRE INSERES DANS DES CHAMBRES RESPECTIVES DU RESERVOIR SEPAREES PAR UN ECRAN INTERNE, DE SORTE QUE LE DISPOSITIF EST SENSIBLE A UNE CHUTE DU NIVEAU DE LIQUIDE DANS L'UNE OU L'AUTRE DES CHAMBRES. APPLICATION AUX FREINS HYDRAULIQUES POUR VEHICULES.THE INVENTION CONCERNING ESPECIALLY THE BRAKING OF VEHICLES. FLUID LEVEL INDICATOR DEVICE, INCORPORATED IN THE FILLING CAP 6 OF A TANDEM TANK OF A VEHICLE BRAKING SYSTEM, INCLUDING A HOLLOW BODY 12 ARRANGED TO BE PRESSURIZED INSIDE, BY IMMERSING THE VEHICLE ORGAN IN THE FLUID AND AT A PRESSURE PROPORTIONAL TO THE LOAD H BETWEEN THE LEVELS OF FLUID A, B, INSIDE AND OUTSIDE THE ORGAN 12. A DIAPHRAGM 15, INSIDE THE ORGAN 12 , RESPOND TO VARIATIONS IN PRESSURE WITHIN ITS INTERIOR TO ACTIVATE AN ELECTRICAL SWITCH 21, 22 WHICH EMITS AN ALERT SIGNAL. THE BODY INCLUDES TWO ELEMENTS 13 PROVIDED TO BE INSERTED IN RESPECTIVE CHAMBERS OF THE TANK SEPARATED BY AN INTERNAL SCREEN, SO THAT THE DEVICE IS SENSITIVE TO A DROP IN THE LEVEL OF LIQUID IN ONE OR THE OTHER OF THE ROOMS. APPLICATION TO HYDRAULIC BRAKES FOR VEHICLES.

FR7925456A 1978-10-17 1979-10-12 DEVICES FOR INDICATING THE LEVEL OF A FLUID Withdrawn FR2439390A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7840908A GB2032178A (en) 1978-10-17 1978-10-17 Fluid Level Indicating Devices

Publications (1)

Publication Number Publication Date
FR2439390A1 true FR2439390A1 (en) 1980-05-16

Family

ID=10500398

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7925456A Withdrawn FR2439390A1 (en) 1978-10-17 1979-10-12 DEVICES FOR INDICATING THE LEVEL OF A FLUID

Country Status (5)

Country Link
DE (1) DE2942016A1 (en)
ES (1) ES485125A1 (en)
FR (1) FR2439390A1 (en)
GB (1) GB2032178A (en)
IT (1) IT1129047B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4570484A (en) * 1985-03-18 1986-02-18 Eaton Corporation Liquid measurement system
FR2772917B1 (en) * 1997-12-23 2000-06-30 Jean Yves Delattre THE PRESENT INVENTION CONCERNS A SENSOR FOR THE DETECTION OF A LIQUID LEVEL AS WELL AS A LIQUID SUPPLY INSTALLATION OF A TANK USING THIS SENSOR
EP2584109B1 (en) * 2011-10-19 2016-02-17 Grundfos Holding A/S Fill level sensor

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB416036A (en) * 1933-03-06 1934-09-06 Cyril Llewellyn Rees Pressure operated electric switch
DE1101784B (en) * 1958-07-31 1961-03-09 Siemens Ag Contact-making device for determining the filling status of containers
DE1153182B (en) * 1957-10-07 1963-08-22 Blaw Knox Ltd Level indicator for storage container
FR1581293A (en) * 1967-09-15 1969-09-12
US3577121A (en) * 1969-11-10 1971-05-04 Gen Motors Corp Brake fluid level switch
GB1249640A (en) * 1968-12-30 1971-10-13 Burmah Oil Trading Ltd Improvements in or relating to container filling apparatus
US3671695A (en) * 1970-04-24 1972-06-20 Gen Motors Corp Brake fluid level sensor
FR2131490A5 (en) * 1971-03-24 1972-11-10 Bendix Corp
GB1321659A (en) * 1970-09-19 1973-06-27 Flowsheet Panels Ltd Liquid level detectors

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB416036A (en) * 1933-03-06 1934-09-06 Cyril Llewellyn Rees Pressure operated electric switch
DE1153182B (en) * 1957-10-07 1963-08-22 Blaw Knox Ltd Level indicator for storage container
DE1101784B (en) * 1958-07-31 1961-03-09 Siemens Ag Contact-making device for determining the filling status of containers
FR1581293A (en) * 1967-09-15 1969-09-12
GB1238338A (en) * 1967-09-15 1971-07-07
GB1249640A (en) * 1968-12-30 1971-10-13 Burmah Oil Trading Ltd Improvements in or relating to container filling apparatus
US3577121A (en) * 1969-11-10 1971-05-04 Gen Motors Corp Brake fluid level switch
US3671695A (en) * 1970-04-24 1972-06-20 Gen Motors Corp Brake fluid level sensor
GB1321659A (en) * 1970-09-19 1973-06-27 Flowsheet Panels Ltd Liquid level detectors
FR2131490A5 (en) * 1971-03-24 1972-11-10 Bendix Corp

Also Published As

Publication number Publication date
GB2032178A (en) 1980-04-30
ES485125A1 (en) 1980-05-16
IT7950569A0 (en) 1979-10-15
IT1129047B (en) 1986-06-04
DE2942016A1 (en) 1980-05-08

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Legal Events

Date Code Title Description
ST Notification of lapse