公开(公告)号：US20180195477A1

公开(公告)日：2018-07-12

申请号：US15742318

申请日：2016-06-17

申请人： Robert Bosch GmbH

发明人： Andreas SCHAAD ,  Joerg ABEL ,  Juergen Maier ,  Martin Buehner ,  Matthias Boee ,  Olaf Schoenrock ,  Philipp Rogler ,  Stefan Cerny

IPC分类号： F02M51/06

CPC分类号： F02M51/0685 ,  F02M2200/302 ,  F02M2200/304 ,  F02M2200/306

摘要： A valve for metering a fluid, the valve preferably being designed as a fuel injector for internal combustion engines. The valve includes an electromagnetic actuator and a valve needle that is actuatable by the actuator. The valve needle is used for actuating a valve closing body that cooperates with a valve seat surface to form a sealing seat. An armature of the actuator includes a through opening through which the valve needle extends. An annular gap is formed between an inner wall of a housing part and an outer side of the armature. A movable damping element that may have a partial ring shape is situated on the annular gap. The movable damping element is actuatable by a magnetic field that is generated by the actuator. The dynamics of the armature may thus be advantageously influenced in order to in particular reduce an armature bounce.