GB1519803A - Gluid flow measuring device particularly petrol flow measuring device for motor vehicles - Google Patents

Gluid flow measuring device particularly petrol flow measuring device for motor vehicles

Info

Publication number
GB1519803A
GB1519803A GB3630575A GB3630575A GB1519803A GB 1519803 A GB1519803 A GB 1519803A GB 3630575 A GB3630575 A GB 3630575A GB 3630575 A GB3630575 A GB 3630575A GB 1519803 A GB1519803 A GB 1519803A
Authority
GB
United Kingdom
Prior art keywords
measuring device
flow measuring
linearizer
instrument
output
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.)
Expired
Application number
GB3630575A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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
Priority claimed from DE19742442155 external-priority patent/DE2442155C3/en
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB1519803A publication Critical patent/GB1519803A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/10—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in inductance, i.e. electric circuits therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/38—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule
    • G01F1/383—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule with electrical or electro-mechanical indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F9/00—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine
    • G01F9/02—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine wherein the other variable is the speed of a vehicle
    • G01F9/023—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine wherein the other variable is the speed of a vehicle with electric, electro-mechanic or electronic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/007—Transmitting or indicating the displacement of flexible diaphragms using variations in inductance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Measuring Volume Flow (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

1519803 Measuring fluid-pressure electrically LICENTIA PATENT VERWALTUNGS GmbH 3 Sept 1975 [3 Sept 1974] 36305/75 Heading G1N(A) A pressure difference set up between chambers 4 and 8 by fluid e.g. petrol, flowing through a Venturi 6 causes deflection of a metal disc 23 towards an inductance 10 and changes the resonant frequency of an L.C. oscillator, Fig. 2, delivering a D.C. voltage Vosc to an indicator, the voltage Vosc. being inversely proportional to the high frequency current. The chambers 4 and 8 are separated by an elastic non-conducting diaphragm 26 and the low-pressure chamber 8 is provided with concentric steps 64 to provide graded support for the deflecting disc and diaphragm. The inductance 10 may alternatively be located adjacent the high-pressure chamber. To provide a measure of, for example, litres per hundred kilometres travelled by a motor vehicle the output Vosc is applied via a linearizer (46), Figs. 20 and 27 (not shown) to an integrator (47), the capacitor (49) of which is periodically discharged by a switch (50) comprising drum contacts (53), Fig. 21 (not shown) rotating with the tacho drive-shaft. An instrument (35) displays the mean value of the time-integral curve. In an alternative embodiment the rotary switch (55), Fig. 23 (not shown) has changeover contacts connected such that the integrator output is applied to the instrument (35) only during a short period (t2) Fig. 26 (not shown) of each charging cycle. The linearizer (46) comprises two transistor amplifier stages (T r , Fig. 27) each with variable negative feedback. Charging of capacitance (49) is accomplished via a constant current source (67). Alternative linearizing circuits utilize the characteristic curve of a transistor (38), Fig. 15 (not shown) or that of serially connected diodes (41), Fig. 17 (not shown). A Zener diode (45), Fig. 18 (not shown) may be connected at the output of the linearizer to compress the upper end of the instrument scale.
GB3630575A 1974-09-03 1975-09-03 Gluid flow measuring device particularly petrol flow measuring device for motor vehicles Expired GB1519803A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742442155 DE2442155C3 (en) 1974-09-03 Flow meters, in particular gasoline flow meters for motor vehicles

Publications (1)

Publication Number Publication Date
GB1519803A true GB1519803A (en) 1978-08-02

Family

ID=5924763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3630575A Expired GB1519803A (en) 1974-09-03 1975-09-03 Gluid flow measuring device particularly petrol flow measuring device for motor vehicles

Country Status (3)

Country Link
FR (1) FR2284105A1 (en)
GB (1) GB1519803A (en)
IT (1) IT1042284B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103282755A (en) * 2010-11-29 2013-09-04 马夸特机械电子有限责任公司 Sensor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2946062A1 (en) * 1979-11-15 1981-05-27 Robert Bosch Gmbh, 7000 Stuttgart MEASURING DEVICE FOR CONTACT-FREE DETECTION OF THE DISTANCE OF A METALLIC SURFACE FROM A COUNTER-SURFACE AND EVALUATION METHOD FOR SUCH A MEASURING DEVICE
FR2474408B1 (en) * 1980-01-28 1987-09-18 Sibe INSTANT CONSUMPTION INDICATOR FOR VEHICLE DRIVEN BY AN INTERNAL COMBUSTION ENGINE

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US24267A (en) * 1859-05-31 William h
US3118302A (en) * 1964-01-21 Fuel consumption indicator
US2715680A (en) * 1950-03-22 1955-08-16 Howard E Tatel Telemetric gages
FR1042204A (en) * 1951-09-14 1953-10-29 Electronic micromanometer
GB763086A (en) * 1954-01-19 1956-12-05 Atomic Energy Authority Uk Improvements in or relating to position indicating apparatus
US2941397A (en) * 1956-11-01 1960-06-21 Lee Foundation For Nutritional Miles-per-gallon measuring apparatus
US3040575A (en) * 1957-05-20 1962-06-26 Robertshaw Fulton Controls Co Linear flow transmitter
US3153210A (en) * 1958-07-01 1964-10-13 Yarnall Waring Co Electrical pressure transducer
DE1172054B (en) * 1959-03-31 1964-06-11 Svenska Aeroplan Ab Method and device for determining the instantaneous fuel consumption of a vehicle
US3140450A (en) * 1961-02-13 1964-07-07 Edcliff Instr Inc Force controlled variable reactance transducer
US3153935A (en) * 1961-06-06 1964-10-27 Eskil L Karlson Pressure transducer
US3544876A (en) * 1967-08-07 1970-12-01 Honeywell Inc Force rebalance servo system including a unique two wire transmission line and transistor control circuit
US3635079A (en) * 1970-02-25 1972-01-18 Norvin P Tomlinson Miles per gallon meter
GB1364771A (en) * 1973-06-04 1974-08-29 Honeywell Ltd Position transducer with linearity control

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103282755A (en) * 2010-11-29 2013-09-04 马夸特机械电子有限责任公司 Sensor
US20130291646A1 (en) * 2010-11-29 2013-11-07 Marquardt Mechatronik Gmbh Sensor
CN103282755B (en) * 2010-11-29 2015-07-22 马夸特机械电子有限责任公司 Sensor
US9267859B2 (en) 2010-11-29 2016-02-23 Marquardt Mechatronik Gmbh Mechanical fluid sensor

Also Published As

Publication number Publication date
FR2284105B1 (en) 1979-03-09
IT1042284B (en) 1980-01-30
DE2442155B2 (en) 1977-01-13
FR2284105A1 (en) 1976-04-02
DE2442155A1 (en) 1976-03-11

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee