| 摘要 |
PURPOSE: An electromagnetic wave reducing device is provided to prevent injury on a vehicle and human life due to the malfunction of electrical devices by blocking up electromagnetic waves. CONSTITUTION: Choke coils(L1-L4) are serially installed between primary sides of two ignition coils(IG C1, IG C2), two output terminals(O1,O2) of an engine control unit and a power source voltage output terminal(B+). Mylar condensers(C1,C3) are installed between both ends of the primary sides of the ignition coils. Mylar condensers(C2,C4) are installed between one side of the primary sides of the ignition coils and a ground terminal. With the structure, electromagnetic waves generated from an ignition system are blocked up without performance degradation or engine output degradation. A vehicle or human life is protected from the malfunction of electrical devices due to the electromagnetic waves. Moreover, such malfunction as the wire entanglement of wireless receivers in the vehicle is prevented.
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