Patent ID: 7168300

Claim:
An apparatus for identifying a liquid type of a gasoline, comprising: a gasoline liquid type identifying chamber for causing an identified gasoline introduced into a liquid type identifying apparatus body to stay temporarily; a liquid type identifying sensor heater provided in the gasoline liquid type identifying chamber; and a liquid temperature sensor provided in the gasoline liquid type identifying chamber apart from the liquid type identifying sensor heater at a constant interval; the liquid type identifying sensor heater including a heater and an identifying liquid temperature sensor provided in the vicinity of the heater, the apparatus further comprising an identification control portion for applying a pulse voltage to the liquid type identifying sensor heater for a predetermined time, heating the identified gasoline staying temporarily in the gasoline liquid type identifying chamber by the heater and identifying the liquid type with a voltage output difference V 0 corresponding to a temperature difference between an initial temperature and a peak temperature in the identifying liquid temperature sensor, and an alcohol content detecting chamber, the alcohol content detecting chamber being provided with an alcohol concentration detecting device in which an alcohol concentration in the gasoline is detected by introducing a gasoline between electrodes of an alcohol concentration detecting sensor, and by measuring a change in a specific inductive capacity of the gasoline between the electrodes with an oscillation frequency, and based on the alcohol concentration detected by the alcohol concentration detecting device, liquid type identification data in the identification control portion being corrected on the basis of alcohol concentration data which are prestored in the identification control portion, thereby identifying a liquid type.