公开(公告)号：US4641626A

公开(公告)日：1987-02-10

申请号：US801227

申请日：1985-11-25

申请人： Seiji Morino ,  Eiichi Uno ,  Yoshihiro Yoshitani

发明人： Seiji Morino ,  Eiichi Uno ,  Yoshihiro Yoshitani

IPC分类号： F02P3/00 ,  F02P3/08 ,  F02P9/00 ,  F02P3/02

CPC分类号： F02P9/002 ,  F02P3/0884

摘要： A current-interrupting type ignition device having an ignition coil having a primary winding, a secondary winding and an auxiliary winding disposed in the primary circuit, the number of turns of the auxiliary winding being less than that of the primary one. The auxiliary winding is energized in such a manner that electromagnetic flux passes in a direction opposite to that of the primary winding when energized. In this arrangement current flows through the auxiliary winding via a transistor and a diode when the primary current flowing through the primary winding is interrupted, thereby adding a voltage induced across the secondary winding by the transferring effect upon the energization of the auxiliary winding to the corresponding high voltage induced across the secondary winding upon the interruption of the current flow through the primary winding.

摘要翻译： 一种电流中断式点火装置，其具有点火线圈，其具有初级绕组，次级绕组和设置在初级回路中的辅助绕组，辅助绕组的匝数小于主绕组的匝数。 辅助绕组以这样的方式通电，即当通电时，电磁通量沿与初级绕组的方向相反的方向通过。 在这种布置中，当流过初级绕组的初级电流中断时，电流通过晶体管和二极管流过辅助绕组，从而在辅助绕组通电到相应的辅助绕组时，通过传递效应增加在次级绕组上感应的电压 在通过初级绕组的电流中断时，在次级绕组上产生的高电压。

公开(公告)号：US4112904A

公开(公告)日：1978-09-12

申请号：US747870

申请日：1976-12-06

申请人： Eiichi Uno ,  Takasi Hachiga

发明人： Eiichi Uno ,  Takasi Hachiga

IPC分类号： F02P3/045 ,  F02P3/04

CPC分类号： F02P3/0453

摘要： The output signal induced in an electromagnetic pickup and having a frequency corresponding to the rotational speed of an internal combustion engine is applied to the input of an input transistor. The output of the input transistor is connected to the input of a power transistor having its output connected in series with the primary winding of an ignition coil to turn the power transistor on and off in accordance with the output signal of the electromagnetic pickup and thereby switch on and off the current flowing in the primary winding. A DC bias voltage corresponding to the output signal of the electromagnetic pickup is applied to the input of the input transistor to change its operating level. This change in the operating level changes the ratio between the "on" and "off" periods of the power transistor, namely, the ratio between the "on" and "off" periods of the primary winding of the ignition coil.