JPS57187638A - Alcohol sensor for internal combustion engine - Google Patents

Alcohol sensor for internal combustion engine

Info

Publication number
JPS57187638A
JPS57187638A JP7235081A JP7235081A JPS57187638A JP S57187638 A JPS57187638 A JP S57187638A JP 7235081 A JP7235081 A JP 7235081A JP 7235081 A JP7235081 A JP 7235081A JP S57187638 A JPS57187638 A JP S57187638A
Authority
JP
Japan
Prior art keywords
fuel
infrared rays
mixed
alcohol
detecting
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.)
Pending
Application number
JP7235081A
Other languages
Japanese (ja)
Inventor
Toru Sugawara
Takao Sasayama
Matsuo Amano
Takashige Ooyama
Teruo Yamauchi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7235081A priority Critical patent/JPS57187638A/en
Publication of JPS57187638A publication Critical patent/JPS57187638A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis

Abstract

PURPOSE:To achieve an optimizing control of the quantity of fuel, ignition timing, quantity of idle air and reflux of exhaust gas by detecting the quantity of infrared rays absorbed when it is irradiated on a sample cell into which an alcohol-mixed fuel is introduced and on a reference cell of fuel as base. CONSTITUTION:An infrared ray source 2 turns on by a power source 1. Infrared rays generated from the source 2 are intercepted with an optical filter 4 provided on a rotary sector 3 driven with a motor 5 on the side of a wavelength shorten than the proximity of 2.3mu. The infrared rays transmitting the filter 4 enter a reference cell 6 containing gasoline, for example, as base and a sample cell 7 containing a mixed fuel. The quantity of rays detected with light receiving elements 8 and 9 such as lead selenide is drawn as changes in the current and voltage enabling the detecting of the mixing rate of alcohol mixed into the fuel through a differential amplifier 10. This also can be used as correction signal for the supply level of fuel for the optimizing control of a system.
JP7235081A 1981-05-15 1981-05-15 Alcohol sensor for internal combustion engine Pending JPS57187638A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7235081A JPS57187638A (en) 1981-05-15 1981-05-15 Alcohol sensor for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7235081A JPS57187638A (en) 1981-05-15 1981-05-15 Alcohol sensor for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS57187638A true JPS57187638A (en) 1982-11-18

Family

ID=13486764

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7235081A Pending JPS57187638A (en) 1981-05-15 1981-05-15 Alcohol sensor for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS57187638A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59210345A (en) * 1983-03-03 1984-11-29 アンスチチユ・フランセ・ドユ・ペトロル Method and device for measuring composition of mixture of alcohol and gasoline

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59210345A (en) * 1983-03-03 1984-11-29 アンスチチユ・フランセ・ドユ・ペトロル Method and device for measuring composition of mixture of alcohol and gasoline

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