Patent ID: 9080539
Filing Date: 2015-07-14
Classification: F02M

Abstract:
1. An electromagnetic fuel injection valve comprising: a valve housing having a valve seat at a front end thereof; a hollow fixed core continuously provided to a rear end of the valve housing; a movable core disposed opposite to an attraction surface of the fixed core; a coil disposed on an outer periphery of the fixed core; a valve element connected to the movable core to cooperate with the valve seat; and a valve spring configured to bias the valve element in a valve closing direction, wherein the movable core is caused to be attracted to the fixed core by energizing the coil so as to open the valve element, a guide bush is press fitted in an inner peripheral surface of the fixed core, the valve element includes: a sliding member configured to be slidably fitted to an inner peripheral surface of the guide bush is press fitted on the valve stem, wherein an annular gap is provided at least at one of a location between the fixed core and the guide bush and a location between the valve stem and the sliding member, within sliding regions of the guide bush and the sliding member.