GASOLINE THE IDENTIFICATION SYSTEM AND METHOD FOR IDENTIFYING GASOLINE TYPE

WIPO Patent Application WO/2004/029615

A1

The types of gasoline of various compositions having different distillation characteristics can be identified accurately and quickly. A pulse voltage is applied for a predetermined time to an identification sensor heater having a heater and a liquid temperature sensor for identification arranged in the vicinity of the heater, so that a gasoline to be identified is heated by the heater. The type of gasoline is identified by a voltage output differential (VO) corresponding to a temperature differential between the initial temperature and the peak temperature of the liquid temperature sensor for identification. An alcohol concentration sensor senses the alcohol concentration of the gasoline by feeding the gasoline between electrodes of the alcohol concentration sensor and measuring a change in the relative dielectric constant of the gasoline between the electrodes by oscillation frequency. Referring to previously stored alcohol concentration data in an identification control unit, liquid identification data in the identification control unit are corrected using the sensed alcohol concentration, thereby identifying the type of gasoline.

KAWANISHI TOSHIAKI (JP)
YAMAGISHI KIYOSHI (JP)
TAKAHATA TAKAYUKI (JP)

PCT/JP2003/012505

April 08, 2004

September 30, 2003

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MITSUI MINING & SMELTING CO (JP)
KAWANISHI TOSHIAKI (JP)
YAMAGISHI KIYOSHI (JP)
TAKAHATA TAKAYUKI (JP)

F02D41/00; F02D45/00; F02M37/00; F02P5/145; F02P5/15; G01N25/18; G01N27/22; G01N33/22; G01N33/28; F02D37/02; (IPC1-7): G01N33/22; G01N25/18; G01N27/22; F02D41/32; F02D45/00; F02P5/15

JPH0476451A	1992-03-11
JPH11153561A	1999-06-08
JPH07306172A	1995-11-21

None

Suzuki, Shunichiro (Gotanda Yamazaki Bldg. 6F 13-6, Nishigotanda 7-chom, Shinagawa-ku Tokyo, JP)

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