ES419080A1 - Carburation control apparatus for an internal combustion engine - Google Patents

Abstract

Anti-pollution device for an explosion engine fed by an inlet pipe with a mixture of fuel and oxidizer made in a carburettor that receives said oxidizer from a filter, device that includes a chamber that communicates with said filter into which a conduit pipe ends. hot oxidizer and cold oxidizer conduit; a shutter capable of rotatingly sealing one or the other of said oxidizer conduits; a capsule with two compartments delimited by a membrane capable of controlling the rotation of said shutter by varying the difference in the pressures that reign in said compartments; a corrector member arranged between said filter and said carburettor, capable of controlling, depending on the temperature of the gas admitted in the carburetor, said shutter shutter by means of said capsule, characterized in that said corrector member comprises: an open elongated body at both ends provided with an internal transverse partition; a first and second sealing covers for the extremities of said body, said partition dividing the interior volume of the body and of the covers into two chambers, a first chamber placed in communication with said intake pipe, and a second chamber attached to the compartment of small capsule pressure; a hood that surrounds said first cover and that defines with it a collecting space that communicates with the filter; a thermal probe received in a bore made at the end of said second cover, the thermally sensitive end of which is arranged substantially in the vicinity of the carburettor inlet, said probe being able to actuate a control finger; means suitable for communicating with one another or for isolating the first and second chambers from one another; means suitable for communicating with each other or for isolating one from the other, successively the first and second chambers and then said chambers and said collecting space. (Machine-translation by Google Translate, not legally binding)