发明名称 |
Drive Device for Fuel Injection Device, and Fuel Injection System |
摘要 |
A drive device capable of detecting individual variations of an injection quantity of a fuel injection device of each cylinder and adjusting a current waveform provided to an injection pulse width and a solenoid such that the individual variations of the fuel injection devices are reduced. The fuel injection device in the present invention includes a valve body that closes a fuel passage by coming into contact with a valve seat and opens the fuel passage by separating from the valve seat and a magnetic circuit constructed of a solenoid, a fixed core, a nozzle holder, a housing, and a needle and when a current is supplied to the solenoid, a magnetic suction force acts on the needle and the needle has a function to open the valve body by colliding against the valve body after performing a free running operation and changes of acceleration of the needle due to collision of the needle against the valve body are detected by a current flowing through the solenoid. |
申请公布号 |
US2016177855(A1) |
申请公布日期 |
2016.06.23 |
申请号 |
US201314907908 |
申请日期 |
2013.07.29 |
申请人 |
HITACHI AUTOMOTIVE SYSTEMS, LTD. |
发明人 |
KUSAKABE Ryo;ABE Motoyuki;HATANAKA Ayumu;AONO Toshihiro;HIROTSU Teppei;SAKAMOTO Hideyuki;TOYOHARA Masahiro;MUKAIHARA Osamu;FUKUDA Takao;YASUKAWA Yoshihito;MIYAMOTO Akiyasu |
分类号 |
F02D41/20;F02M65/00;F02M51/06 |
主分类号 |
F02D41/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Ibaraki JP |