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Mixing ratio sensor of alcohol mixed fuel

Abstract

In order to improve combustion efficiency of an internal combustion engine using gasoline-alcohol mixed fuel and to reduce harmful substance in its exhaust gas, it is necessary to control strictly the air-fuel ratio to be supplied and the ignition timing and change the condition of control depending upon the mixing ratio of the mixed fuel. In order to detect the mixing ratio of the mixed fuel, the above mixing ratio has so far been detected by casting a ray of light to the mixed fuel and utilizing a change of critical angle associated with the change of the composition of the fluid of the mixed fuel. However, in case when a light emitting diode is used for the light source above, two kinds of sensors are further needed. Concerning the two kinds of sensors above, this invention offers a mixing ratio sensor for the alcohol mixed fuel which can abolish a temperature sensor to detect the environmental temperature by making a single compensatory light receiving element deal with the compensation of the amount of light emission of the light emitting element due to the temperature change and the compensation of the critical angle caused by the temperature change. (6 figs)
Publication Date:
Aug 07, 1987
Product Type:
Patent
Report Number:
JP 62-180244(A)
Reference Number:
NEDO-87-960316; EDB-88-140323
Resource Relation:
Patent File Date: Filed date 4 Feb 1986
Subject:
33 ADVANCED PROPULSION SYSTEMS; ALCOHOLS; MIXING; DETECTION; SEMICONDUCTOR DIODES; FUELS; COMBUSTION PROPERTIES; QUANTITY RATIO; GASOLINE; INTERNAL COMBUSTION ENGINES; ENGINES; HEAT ENGINES; HYDROXY COMPOUNDS; LIQUID FUELS; ORGANIC COMPOUNDS; PETROLEUM PRODUCTS; SEMICONDUCTOR DEVICES; 330100* - Internal Combustion Engines; 330800 - Emission Control- Alternative Fuels
OSTI ID:
7010912
Country of Origin:
Japan
Language:
Japanese
Submitting Site:
NEDO
Size:
Pages: 7
Announcement Date:

Citation Formats

Miyata, Shigeru, and Matsubara, Yoshihiro. Mixing ratio sensor of alcohol mixed fuel. Japan: N. p., 1987. Web.
Miyata, Shigeru, & Matsubara, Yoshihiro. Mixing ratio sensor of alcohol mixed fuel. Japan.
Miyata, Shigeru, and Matsubara, Yoshihiro. 1987. "Mixing ratio sensor of alcohol mixed fuel." Japan.
@misc{etde_7010912,
title = {Mixing ratio sensor of alcohol mixed fuel}
author = {Miyata, Shigeru, and Matsubara, Yoshihiro}
abstractNote = {In order to improve combustion efficiency of an internal combustion engine using gasoline-alcohol mixed fuel and to reduce harmful substance in its exhaust gas, it is necessary to control strictly the air-fuel ratio to be supplied and the ignition timing and change the condition of control depending upon the mixing ratio of the mixed fuel. In order to detect the mixing ratio of the mixed fuel, the above mixing ratio has so far been detected by casting a ray of light to the mixed fuel and utilizing a change of critical angle associated with the change of the composition of the fluid of the mixed fuel. However, in case when a light emitting diode is used for the light source above, two kinds of sensors are further needed. Concerning the two kinds of sensors above, this invention offers a mixing ratio sensor for the alcohol mixed fuel which can abolish a temperature sensor to detect the environmental temperature by making a single compensatory light receiving element deal with the compensation of the amount of light emission of the light emitting element due to the temperature change and the compensation of the critical angle caused by the temperature change. (6 figs)}
place = {Japan}
year = {1987}
month = {Aug}
}