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公开(公告)号：EP2318686A1
公开(公告)日：2011-05-11
申请号：EP09769814.6
申请日：2009-04-09
发明人： RICCO, Mario , STUCCHI, Sergio , RICCO, Raffele , DE MICHELE, Onofrio , GRAVINA, Antonio , GARGANO, Marcello , ALTAMURA, Chiara , LEPORE, Domenico , MAZZARELLA, Carlo
CPC分类号： F02M63/0024 , F02M47/027 , F02M63/0075 , F02M63/008 , F02M2200/07 , F02M2200/306 , F02M2200/9069
摘要： A fuel injector servovalve (5) has a control chamber and a fixed stem (38), on which a slidable sleeve (41) is fitted; the sleeve ' (41) is actuated by a spring (23) and by an electromagnet (16) for opening/closing a discharge duct outlet made on the side surface (39) of the fixed stem; the servovalve has a lamina (13), which is located between the core (19) of the electromagnet and an armature (17) coupled to the sleeve (20); when the armature (17) is attracted into the end-of -travel position by the electromagnet, the lamina is located in axial contact against a surface of the armature and against a surface of the core, and there are gaps for the fuel in the axial direction between such surfaces.
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公开(公告)号：EP2318686B1
公开(公告)日：2012-05-16
申请号：EP09769814.6
申请日：2009-04-09
发明人： RICCO, Mario , STUCCHI, Sergio , RICCO, Raffaele , DE MICHELE, Onofrio , GRAVINA, Antonio , GARGANO, Marcello , ALTAMURA, Chiara , LEPORE, Domenico , MAZZARELLA, Carlo
CPC分类号： F02M63/0024 , F02M47/027 , F02M63/0075 , F02M63/008 , F02M2200/07 , F02M2200/306 , F02M2200/9069
摘要： A fuel injector servovalve (5) has a control chamber and a fixed stem (38), on which a slidable sleeve (41) is fitted; the sleeve ' (41) is actuated by a spring (23) and by an electromagnet (16) for opening/closing a discharge duct outlet made on the side surface (39) of the fixed stem; the servovalve has a lamina (13), which is located between the core (19) of the electromagnet and an armature (17) coupled to the sleeve (20); when the armature (17) is attracted into the end-of -travel position by the electromagnet, the lamina is located in axial contact against a surface of the armature and against a surface of the core, and there are gaps for the fuel in the axial direction between such surfaces.
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