Oil filled ignition coil and dry ignition coil


Oil filled ignition coil and dry ignition coil

According to magnetic circuit of ignition coil, which can be classified to types: oil filled ignition coil and dry ignition coil.

Oil filled ignition coil

The oil-filled ignition coil is also called open magnetic circuit type ignition coils. The oil-filled ignition coil applied in the electronic ignition system and its structure is the same as the ignition coil used in the contact breaker (point) system, as known as 
conventional ignition system. The oil filled ignition coil have not additional resistance to connect the primary winding circuit, while which is used in electronic ignition system. In addition, the resistance of the primary winding of the ignition coil is smaller than that of the ignition coil in conventional ignition systems. 



The primary winding of the oil ignition coil needs to be energized to form a magnetic circuit through the air at both ends. This ignition coil is also known as the open magnetic circuit ignition coil. The magnetic circuit of the open magnetic circuit has relatively high magnetic resistance and magnetic leakage loss more. Therefore, the energy conversion efficiency of the primary winding of this ignition coil is not high, about 60%.






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Delcoribo Motor Products Co., Ltd.

Economic Development Zone, Jinhua, Zhejiang, China

Tel: +86-579-8275-8180

[email protected]

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