公开(公告)号：US4502454A

公开(公告)日：1985-03-05

申请号：US393083

申请日：1982-06-28

Applicant: Kyugo Hamai ,  Meroji Nakai ,  Ryusaburo Inoue ,  Yasuhiko Nakagawa

Inventor： Kyugo Hamai ,  Meroji Nakai ,  Ryusaburo Inoue ,  Yasuhiko Nakagawa

IPC: F02P3/05 ,  F02P3/08 ,  F02P3/09 ,  F02P7/03 ,  F02P13/00 ,  F02P9/00

CPC classification number: F02P3/051 ,  F02P13/00 ,  F02P3/0892 ,  F02P3/096 ,  F02P7/035

Abstract: An ignition system for a multi-cylinder internal combustion engine eliminates high-voltage cables and a mechanical distributor in order to reduce electrical power losses due to joule effect caused mainly by the high voltage circuit, comprises a plurality of ignition coils and plugs, one provided for each cylinder, a distribution unit for distributing advance-angle control signals into the respective cylinders, and a booster for boosting the supply voltage in order to reduce the size of the ignition coil, in addition to the conventional ignition system. Furthermore, the ignition coil can be built integrally with the ignition plug for eliminating high-voltage cables connected between coil and plug.

Abstract translation: 用于多气缸内燃机的点火系统消除了高压电缆和机械分配器，以便减少主要由高压电路引起的焦耳效应引起的电功率损失，包括多个点火线圈和插头 对于每个气缸，除了传统的点火系统之外，还具有用于将前进角度控制信号分配到各个气缸中的分配单元和用于升高供电电压以便减小点火线圈的尺寸的升压器。 此外，点火线圈可以与火花塞一体地构建，以消除在线圈和插头之间连接的高压电缆。

公开(公告)号：US4497306A

公开(公告)日：1985-02-05

申请号：US403858

申请日：1982-07-30

Applicant: Kyugo Hamai ,  Yasuhiko Nakagawa ,  Meroji Nakai ,  Ryusaburo Inoue

Inventor： Kyugo Hamai ,  Yasuhiko Nakagawa ,  Meroji Nakai ,  Ryusaburo Inoue

IPC: F02P3/00 ,  F02P3/045 ,  F02P3/05 ,  F02P7/03 ,  F02P9/00 ,  F02P15/12 ,  F02P7/02

CPC classification number: F02P7/035 ,  F02P15/12 ,  F02P3/0456 ,  F02P3/051 ,  F02P9/007

Abstract: An ignition system for an internal combustion engine having a plurality of engine cylinders, wherein ignition coil and spark plug are integrally assembled into each engine cylinder so as to eliminate an ignition energy transmission loss, a DC-DC converter for boosting a low DC voltage into a high DC voltage is provided for applying the high DC voltage into each secondary winding of the ignition coils for achieving an efficient ignition of air-fuel mixture, the application of the high DC voltage being enabled according to a particular engine operating condition, e.g., engine low speed and light engine load condition, and the ignition energy being varied according to an engine operating condition by changing the pulsewidth of the ignition pulse signal to be fed into a cylinder judging circuit which judges the spark plug to be ignited and distributes the ignition pulse signal into the related circuit of the corresponding ignition coil.

Abstract translation: 一种用于具有多个发动机气缸的内燃机的点火系统，其中点火线圈和火花塞一体地组装到每个发动机气缸中以消除点火能量传输损失，用于将低DC电压升压的DC-DC转换器 提供高直流电压以将高DC电压施加到点火线圈的每个次级绕组中，以实现空气 - 燃料混合物的有效点燃，根据特定的发动机工作条件使得施加高直流电压，例如， 发动机低速和轻型发动机负载状态，并且点火能量根据发动机工作状态通过改变要供给的点火脉冲信号的脉冲宽度而变化，该气缸判定电路判定火花塞点燃并分配点火 脉冲信号进入相应的点火线圈的相关电路。