摘要:
0 The invention relates to a fuel tank particularly for use in . motor-cars comprising a device for assessing the degree of filling of the tank with liquid fuel said device comprising a rod of a material conducting radiation energy arranged at an imaginary level of liquid fuel in a given position of the tank, one end of said rod being accessible to radiation energy externally of the tank and at least part of said rod, in dependence upon the actual level of the liquid fuel, directing back to said one end along said part a portion of the radiation energy directed to said one end, whereby the fuel tank is a tank for liquid gas, particularly liquid petroleum gas for cars.