GB867754A - Engine tachometers - Google Patents

Engine tachometers

Info

Publication number
GB867754A
GB867754A GB1050959A GB1050959A GB867754A GB 867754 A GB867754 A GB 867754A GB 1050959 A GB1050959 A GB 1050959A GB 1050959 A GB1050959 A GB 1050959A GB 867754 A GB867754 A GB 867754A
Authority
GB
United Kingdom
Prior art keywords
engine
impulses
march
capacitor
meter
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
GB1050959A
Inventor
Maurice James Wright
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
Joseph 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, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB1050959A priority Critical patent/GB867754A/en
Priority to GB2272360A priority patent/GB936736A/en
Publication of GB867754A publication Critical patent/GB867754A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/4802—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general
    • G01P3/4807—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general by using circuits for the detection of the pulses delivered by the ignition system of an internal combustion engine
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/4802—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

867,754. Engine tachometers. LUCAS (INDUSTRIES) Ltd., JOSEPH. March 1, 1960 [March 26, 1959], No. 10509/60. Addition to 843,152. Class 40 (1). [Also in Group XL (c)] In an arrangement of the kind described in the parent Specification, in which impulses from the primary side of the ignition circuit of an I.C. engine shaped by a Zener diode 2 charge a capacitor 14 which discharges in the intervals between impulses through a measuring instrument 13 to indicate the engine speed, a pair of rectifiers through which the capacitor is charged and discharged respectively is replaced by a rectifier bridge 5-8 so that the meter 13 is also affected by the charging current. As in the parent Specification, highfrequency ripples are suppressed by inductor 1 and the meter may have a set of shunts to adapt the system for different numbers of cylinders.
GB1050959A 1959-03-26 1959-03-26 Engine tachometers Expired GB867754A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1050959A GB867754A (en) 1959-03-26 1959-03-26 Engine tachometers
GB2272360A GB936736A (en) 1959-03-26 1960-06-29 Frequency meters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1050959A GB867754A (en) 1959-03-26 1959-03-26 Engine tachometers

Publications (1)

Publication Number Publication Date
GB867754A true GB867754A (en) 1961-05-10

Family

ID=9969154

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1050959A Expired GB867754A (en) 1959-03-26 1959-03-26 Engine tachometers
GB2272360A Expired GB936736A (en) 1959-03-26 1960-06-29 Frequency meters

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB2272360A Expired GB936736A (en) 1959-03-26 1960-06-29 Frequency meters

Country Status (1)

Country Link
GB (2) GB867754A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103558477A (en) * 2013-11-12 2014-02-05 国家电网公司 Rectifier bridge working condition tester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103558477A (en) * 2013-11-12 2014-02-05 国家电网公司 Rectifier bridge working condition tester
CN103558477B (en) * 2013-11-12 2016-05-11 国网冀北电力有限公司秦皇岛供电公司 Rectifier bridge duty tester

Also Published As

Publication number Publication date
GB936736A (en) 1963-09-11

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