[go: up one dir, main page]

LU90533B1 - Indicator for determining the fuel level in a liquefied petroleum gas fuel tank, for use with a motor vehicle, has an array of optical sensors arranged vertically so that a signal is only generated if a sensor is above liquid - Google Patents

Indicator for determining the fuel level in a liquefied petroleum gas fuel tank, for use with a motor vehicle, has an array of optical sensors arranged vertically so that a signal is only generated if a sensor is above liquid

Info

Publication number
LU90533B1
LU90533B1 LU90533A LU90533A LU90533B1 LU 90533 B1 LU90533 B1 LU 90533B1 LU 90533 A LU90533 A LU 90533A LU 90533 A LU90533 A LU 90533A LU 90533 B1 LU90533 B1 LU 90533B1
Authority
LU
Luxembourg
Prior art keywords
sensor
optical sensors
indicator
array
determining
Prior art date
Application number
LU90533A
Other languages
French (fr)
Inventor
Xavier Allegre
Daniel Bouvier
Gilbert Spiesser
Original Assignee
Clesse Ind
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 Clesse Ind filed Critical Clesse Ind
Priority to LU90533A priority Critical patent/LU90533B1/en
Application granted granted Critical
Publication of LU90533B1 publication Critical patent/LU90533B1/en

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
    • G01F23/28—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 the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • G01F23/2924—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms for several discrete levels, e.g. with more than one light-conducting sensing element
    • 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
    • G01F23/28—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 the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • G01F23/2925—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means
    • G01F23/2927—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means for several discrete levels, e.g. with more than one light-conducting sensing element

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

Device comprises an assembly of optical sensors (9) distributed vertically along a support within the interior of a fuel tank (2). Each sensor comprises a luminous light source and a receiver. The light beam is transmitted if a sensor is in a gas environment but not if submerged. The sensors are linked to a power supply, a signal processor and a display gauge (20).
LU90533A 2000-03-01 2000-03-01 Indicator for determining the fuel level in a liquefied petroleum gas fuel tank, for use with a motor vehicle, has an array of optical sensors arranged vertically so that a signal is only generated if a sensor is above liquid LU90533B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
LU90533A LU90533B1 (en) 2000-03-01 2000-03-01 Indicator for determining the fuel level in a liquefied petroleum gas fuel tank, for use with a motor vehicle, has an array of optical sensors arranged vertically so that a signal is only generated if a sensor is above liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU90533A LU90533B1 (en) 2000-03-01 2000-03-01 Indicator for determining the fuel level in a liquefied petroleum gas fuel tank, for use with a motor vehicle, has an array of optical sensors arranged vertically so that a signal is only generated if a sensor is above liquid

Publications (1)

Publication Number Publication Date
LU90533B1 true LU90533B1 (en) 2001-09-04

Family

ID=19731873

Family Applications (1)

Application Number Title Priority Date Filing Date
LU90533A LU90533B1 (en) 2000-03-01 2000-03-01 Indicator for determining the fuel level in a liquefied petroleum gas fuel tank, for use with a motor vehicle, has an array of optical sensors arranged vertically so that a signal is only generated if a sensor is above liquid

Country Status (1)

Country Link
LU (1) LU90533B1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB888941A (en) * 1959-06-22 1962-02-07 Dehavilland Aircraft Improvements in liquid level indicators
US3844171A (en) * 1971-12-29 1974-10-29 E Rodger Light guide liquid level indicator
US4051726A (en) * 1976-04-06 1977-10-04 Hastbacka Albin A Electro-optical liquid level indicator
GB2029005A (en) * 1978-08-03 1980-03-12 Marconi Co Ltd Fluid level indicators
US4286464A (en) * 1980-01-14 1981-09-01 Technical Development Company Optical fluid level monitor
EP0447728A2 (en) * 1989-11-29 1991-09-25 Jaeger Optical device for liquid level measurement in a reservoir, using a reflective prism
EP0795740A1 (en) * 1996-03-13 1997-09-17 Simmonds Precision Products Inc. Self testing optical liquid level sensor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB888941A (en) * 1959-06-22 1962-02-07 Dehavilland Aircraft Improvements in liquid level indicators
US3844171A (en) * 1971-12-29 1974-10-29 E Rodger Light guide liquid level indicator
US4051726A (en) * 1976-04-06 1977-10-04 Hastbacka Albin A Electro-optical liquid level indicator
GB2029005A (en) * 1978-08-03 1980-03-12 Marconi Co Ltd Fluid level indicators
US4286464A (en) * 1980-01-14 1981-09-01 Technical Development Company Optical fluid level monitor
EP0447728A2 (en) * 1989-11-29 1991-09-25 Jaeger Optical device for liquid level measurement in a reservoir, using a reflective prism
EP0795740A1 (en) * 1996-03-13 1997-09-17 Simmonds Precision Products Inc. Self testing optical liquid level sensor

Similar Documents

Publication Publication Date Title
US5950487A (en) Gauge for measuring liquid levels
EP0289833A3 (en) Sensor and method for detecting the presence of air bubbles in liquid
US4474054A (en) Leak detector for underground storage tanks
ATE72895T1 (en) INCLINE MEASUREMENT DEVICE.
LU90533B1 (en) Indicator for determining the fuel level in a liquefied petroleum gas fuel tank, for use with a motor vehicle, has an array of optical sensors arranged vertically so that a signal is only generated if a sensor is above liquid
AU630490B2 (en) Leakage detection system
US5704130A (en) Measuring instrument
CA2309101A1 (en) Liquid level gauge
US4954724A (en) Optical fuel gauge for vehicles
WO1986004409A1 (en) A device for detecting the presence or absence of liquid in a vessel
TR200000709A1 (en) Level indicator assembly in liquefied petroleum gas tank
SU620828A1 (en) Ultrasonic level indicator
JPH11190626A (en) Floor level measuring method and floor level measuring device
JPH0972739A (en) Wireless spirit level
KR970036137A (en) Fuel level measuring device of fuel tank using optical fiber
IT8103465A0 (en) DEVICE FOR THE OPTICAL, REMOTE DISPLAY OF THE LEVEL OR LOCALIZED PRESSURE IN CONTAINERS OF LIQUIDS OR GAS UNDER PRESSURE, PARTICULARLY IN LPG SYSTEMS. OR METHANE FOR VEHICLE
US7305887B2 (en) Pressure indicating apparatus
US1274932A (en) Liquid depth or amount gage.
JPS643519A (en) Liquid level indicator
EP0889305A3 (en) Method and device for testing pressurized gas bottles
ES2135337A1 (en) Photovoltaic level probe
KR970036200A (en) Driving distance display device according to fuel remaining
JP3162583U (en) Liquid level indicator
JPH09145506A (en) Pressure switch
KR200264522Y1 (en) Mirror-typed pressure guage for Oil-Filled cable