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11. 发明授权

US07150417B2 Fuel injection valve 有权
公开(公告)号：US07150417B2
公开(公告)日：2006-12-19
申请号：US11362352
申请日：2006-02-27
申请人： Masahiro Souma
发明人： Masahiro Souma
IPC分类号： B05B1/30
CPC分类号： F02M61/1853 , F02M51/0667 , F02M51/0682 , F02M61/165 , F02M2200/06 , F02M2200/507 , Y10S239/90
摘要： A valve seat member has a valve seat with a fuel injection aperture. A valve body is movable between a close position wherein the valve body is put on the valve seat and an open position wherein the valve body is separated from the valve seat. A biasing member biases the valve body in a direction of the close position. An electromagnetic coil, upon energization, moves the valve body in a direction of the open position against the biasing force of the biasing member. A nozzle plate is connected to the valve seat member in a manner to cover the fuel injection aperture. The nozzle plate has at a part thereof facing the fuel injection aperture a domed portion that is projected away from the fuel injection aperture. The domed portion has a plurality of fuel injection openings. A side wall extends around and along a periphery of the nozzle plate so as to form a fuel holding recess that is defined by the nozzle plate other than domed portion and the side wall. The fuel holding recess is able to hold a certain amount of a fuel by the force of a surface tension possessed by the fuel.

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