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公开(公告)号：EP1052381B1
公开(公告)日：2004-03-24
申请号：EP00110001.5
申请日：2000-05-11
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公开(公告)号：EP1052381A2
公开(公告)日：2000-11-15
申请号：EP00110001.5
申请日：2000-05-11
发明人： Izuo, Takashi, c/o Toyota Jidosha Kabushiki Kaisha , Asano, Masahiko, c/o Toyota Jidosha K. K. , Iida, Tatsuo, c/o Toyota Jidosha Kabushiki Kaisha , Hattori, Hiroyuki, c/o Toyota Jidosha K. K.
IPC分类号： F01L9/04
摘要： A control apparatus for a solenoid-operated valve that functions as an intake or exhaust valve of an internal combustion engine includes a lower spring (30) biasing a valve body (14) of the valve in a valve closing direction and upper and lower coils (42, 46) disposed above and below an armature (36) for generating electromagnetic forces to move the valve body (14) in the valve closing and valve opening directions. After a request for closing of the valve body (14) is made, command currents are supplied to the upper and lower coils (42, 46) in suitable timing to increase the speed at which the valve body (14) is seated against a valve seat (20). As the valve body (14) rotates about its axis due to the action of the lower spring (30) in the course of moving toward the valve seat (20), it is possible to crush and remove carbon between the valve body (14) and the valve seat (20) without causing local wear of the valve body (14).
摘要翻译： 一种用作内燃机的进气门或排气门的电磁操作阀的控制设备包括：下弹簧（30），其将阀的阀体（14）沿阀关闭方向偏压;以及上部和下部线圈 布置在电枢（36）的上方和下方，用于产生电磁力以使阀体（14）沿阀关闭方向和阀打开方向移动。 在作出关闭阀体（14）的请求之后，在适当的时间向上和下线圈（42,46）供应指令电流，以增加阀体（14）抵靠阀门 座位（20）。 当阀体（14）由于下弹簧（30）在朝向阀座（20）移动的过程中的作用下围绕其轴线旋转时，能够压碎和移除阀体（14） 和所述阀座（20），而不引起所述阀体（14）的局部磨损。
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