Patent ID: 7258098

Claim:
A vehicle mounted type fuel testing apparatus comprising: a fuel chamber installed between a fuel filler opening and a main fuel tank of a vehicle; a first fuel pump for supplying fuel in the fuel chamber to a sample holding container and an auxiliary fuel tank; an analyzing device for analyzing constituents of the fuel accommodated in the fuel chamber; the auxiliary fuel tank for storing the fuel when it is determined from measurements obtained by the analyzing device that the fuel is normal fuel; the sample holding container for keeping the fuel when it is determined from the measurements obtained by the analyzing device that the fuel is not normal fuel; a three-way valve for selectively directing the fuel in the fuel chamber to the sample holding container or the auxiliary fuel tank; a second fuel pump for supplying the fuel in the auxiliary fuel tank to the main fuel tank when the fuel in the auxiliary fuel tank is normal fuel; a third fuel pump for supplying the fuel in the auxiliary fuel tank to the outside when the fuel in the auxiliary fuel tank is not normal fuel; and a controller for controlling the above component parts.