Weber S.p.a

Michele Scarnera

Franco Ciampolini

Paolo Francia

Carlo Conticelli

A system for automatic control of the fuel mixture strength supplied in slow-running conditions to a heat engine having a fuel injection system and means for supplying supplementary air in adjustable quantities, comprising first means for periodically varying the quantity of supplementary air supplied to the engine and for detecting the consequent variation in the slow running of the engine for the purpose of obtaining activation for second means for modification of the quantity of fuel supplied to the injectors of the system for compensating the variation in the strength of the mixture.

System for automatic control of the fuel mixture strength supplied in

A system for correction of the fuel injection time control upon variation in altitude, for a heat engine having an electronic fuel injection system, and having means for substantially detecting the value of the external atmospheric pressure and the consequently correcting the value of induction air pressure utilized by a central processing unit of the injection system for calculating the injection time.

System for correction of the fuel injection time, upon variations in

A system for stroke identification of an internal combustion engine, comprising first sensor means for detecting given angles of a drive shaft; second sensor means for detecting given angles of a distributor shaft; third processing means for receiving signals from the first and second sensor means and for identifying the strokes on the engine; and on which the aforementioned second sensor means comprise a single sensor element.

Combustion engine stroke identification system

A system for automatically defining the minimum setting of a valve controlled by an accelerator for supplying air to an internal combustion engine, which system comprises means for repeatedly detecting the setting of the valve in relation to a given minimum setting value; which means define a new given minimum setting value, should the setting of the valve remain steadily, in excess of given time limits, within setting limits respectively over and below the aforementioned given minimum setting value.

System for automatically defining the minimum setting of an

A system for limiting the maximum speed of an internal combustion engine comprising an electronic injection system, which system comprises first means for detecting when the speed of the engine exceeds a first given threshold value, and for consequently disabling fuel supply to the injectors, and second means for determining whether the speed of the engine exceeds a second given threshold value higher than the first threshold value, and for consequently maintaining disabled or enabling fuel supply.

System for limiting the maximum speed of an internal combustion engine

A starting fuel supply system for an internal combustion engine, comprising an electronic injection system, and processing means which, prior to stroke identification of the engine, cause fuel to be supplied to more than one injector, including the injector relative to the cylinder first reaching the ignition point subsequent to such identification, and which has already completed the induction stroke, thus enabling substantially total intake of the fuel injected into the cylinder.

Starting fuel supply system for an internal combustion engine,

A control system for at least one fuel injector in an electronic fuel injection system for a heat engine in which the injector has a linear operating time range defined by a minimum opening time (MIT) and a minimum rest time (MIOT). The system includes a first processor for determining a theoretical injector opening time (TJ), and a second processor directing asynchronous opening of the injector with respect to the phase of the engine, subject to the criteria that the minimum opening and rest times are maintained, while the same linear proportion between the opening and closing time of the injector is also maintained, to ensure that the operating time does not exceed this linear range.

Growing community of inventors

Monzuno, Italy

Michele Scarnera