The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2013
Filed:
Apr. 19, 2010
Mario Ricco, Valenzano, IT;
Sisto Luigi DE Matthaeis, Valenzano, IT;
Antonio Gravina, Valenzano, IT;
Sergio Stucchi, Valenzano, IT;
Mario Ricco, Valenzano, IT;
Sisto Luigi De Matthaeis, Valenzano, IT;
Antonio Gravina, Valenzano, IT;
Sergio Stucchi, Valenzano, IT;
C. R. F. Societa Consortile per Azioni, Orbassano, IT;
Abstract
An electroinjector is provided for controlling fuel injection in an internal-combustion engine. The electroinjector includes an electroactuator, an injection nozzle, and a pin, which is movable along an opening stroke and a closing stroke for opening/closing the nozzle under the control of the electroactuator and according to the supply pressure of the fuel into the electroinjector. A first electrical command and at least a second electrical command, which are sufficiently close to one another as to displace the pin with a profile of motion without any discontinuity in time, and such as to cause the pin to perform a first opening displacement and, respectively, a second opening displacement, are supplied to the electroactuator. Between one injection and the next, at least one among the following quantities is varied as a function of operating parameters of the engine: duration of at least one among the electrical commands; number of the electrical commands; and distance in time between the electrical commands.