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:
Sep. 01, 2026
Filed:
Jul. 09, 2024
Marelli Europe S.p.a., Corbetta, IT;
Giorgio Signorelli, Corbetta, IT;
Michele Petrone, Corbetta, IT;
Stefano Petrecchia, Corbetta, IT;
Martina La Malfa, Corbetta, IT;
Massimo Mattioli, Corbetta, IT;
Francesco Zampolli, Corbetta, IT;
Nicola Mundo, Corbetta, IT;
Luca Mancini, Corbetta, IT;
MARELLI EUROPE S.P.A., Corbetta, IT;
Abstract
An electromagnetic fuel injector having: a tubular support body; an injection nozzle arranged at one end of the support body; an injection valve coupled to the injection nozzle; a plunger, which is movable, so as to adjust the fuel flow through the injection nozzle, between a closed position and an open position of the injection valve; an electromagnetic actuator provided with at least one main electromagnet and at least one secondary electromagnet; and a closing spring configured to push the plunger towards the closed position of the injection valve. The secondary electromagnet has a secondary coil and a secondary movable armature, which is arranged inside the support body, is movable, is integral to the plunger and is magnetically coupled to the secondary coil but lacks a secondary fixed armature, which is integral to the support body, is arranged inside the support body and is magnetically coupled to the secondary movable armature so as to magnetically attract the secondary movable armature.