ES216020A1 - Improvements in carburetors tachymeters for internal combustión engines (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements in tachimºtricas carburetors for internal combustion engines, characterized by the arrangement of a volumetric fuel pump that is driven according to the engine speed and a dosing or mixing device, which divides into two parts the flow of fuel supplied by the pump to a fuel inlet chamber, one of these parts being sent to an injection pipe through a calibrated injection passage, the injection pipe being connected to an injector that opens into the intake pipe of the engine, while the other part is sent to a return pipe through a calibrated return passage, the pressure in the said return pipe or pipe being regulated, by means of a valve that is disposed in this last pipe below said calibrated return step and , driven by a pressure regulator that works in relation to the pressure difference between the tube or pipe of and the return pipe or pipe, regulating the ratio of the sections of said calibrated injection step and of the said calibrated return step as a function of the intake pressure of the engine in which a pressure-operated manometer device acts as a function of the pressure The motor inlet regulates both the calibrated injection step and the calibrated return step, so that it increases the section of the calibrated injection step and decreases the section of the calibrated return step, when the intake pressure increases and vice versa. (Machine-translation by Google Translate, not legally binding)