A fuel economizing apparatus for gasoline engines. (Machine-translation by Google Translate, not legally binding)

摘要

A fuel-saving device for petrol engines, characterized by comprising a valve for the passage of secondary air, to the engine, of progressive type, controlled in its displacement by a set of membrane actionable by depression, whose positive displacement is conditioned by the depression in the engine intake manifold, with the secondary air passage valve being coupled to a filtered air inlet, supplying pure air to the carbureted mixture, impoverishing the same, in a manner related to the depression in the exhaust manifold. Engine intake. (Machine-translation by Google Translate, not legally binding)