The drive and fuel injection system of a fuel injection device

Japanese Patent JP6007331

B2

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 114 that closes a fuel passage by coming into contact with a valve seat 118 and opens the fuel passage by separating from the valve seat 118 and a magnetic circuit constructed of a solenoid 105, a fixed core 107, a nozzle holder 101, a housing 103, and a needle 102 and when a current is supplied to the solenoid 105, a magnetic suction force acts on the needle 102 and the needle 102 has a function to open the valve body 114 by colliding against the valve body 114 after performing a free running operation and changes of acceleration of the needle 102 due to collision of the needle 102 against the valve body 114 are detected by a current flowing through the solenoid 105.

Ryo Kusakabe
Motoyuki Abe
Ayumu Hatanaka
Toshihiro Aono
Hirotsu Teppei
Hideyuki Sakamoto
Masahiro Toyohara
Osamu Mukaihara
Takao Fukuda
Yasukawa Yoshito
Miyamoto Ayasu

JP2015529230A

October 12, 2016

July 29, 2013

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Hitachi Automotive Systems, Ltd.

F02M51/00; F02D41/20; F02M51/06; F02M65/00

JP2009281293A	2009-12-03
JP2001221121A	2001-08-17
JP2008240620A	2008-10-09
JP2003511604A	2003-03-25
JP2013002400A	2013-01-07
JP2011069331A	2011-04-07
JP2012177303A	2012-09-13
JP2006200378A	2006-08-03
JP2009281293A	2009-12-03
JP2001221121A	2001-08-17
JP2008240620A	2008-10-09
JP2003511604A	2003-03-25

Polaire Patent Business Corporation

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