ES251034U - Fuel dispenser for automobiles (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Automobile fuel doser that providing an adequate regulation of the fuel flow supplied by the pump to the car's carburetor is essentially characterized in that it is constituted by an electronic circuit that commands the operation of a three-way solenoid valve, sandwiched between the carburetor and the pump and with one of its associated tracks, as fuel return, to the supply conduit that connects the fuel tank with the pump, the electronic circuit being constituted by an integrated circuit mounted as a stable multivibrator by the association of two rc networks, with common capacity both and with the resistive part of each of them formed by the series connection of a resistor, fixed, a variable resistance and a diode with inverse polarity with respect to the remaining network, the output of said integrated circuit being, through the corresponding polarization circuit, to the base d a transistor that operates in cut-saturation and whose collector has as load resistance the coil of a relay capable of feeding or not to the solenoid valve, having been provided between the coil terminals of said relay, a diode electroluminescent equipped with its corresponding limiting resistance, to indicate the operative situation of the set with the particularity that the period and the cyclic relation of the pulses generated by the interconnected, stable multivibrator circuit are regulated, respectively, by said variable resistances. (Machine-translation by Google Translate, not legally binding)