What is Pencil Ignition Coil?

Ignition Coils are used to convert low voltage current from the ignition system to high-voltage spark energy needed for the air/fuel mixture to ignite at the spark plug. The ignition coil produces the spark that starts the combustion process that drives your vehicle forward and keeps you going.

An ignition coil is a ferromagnetic coil assembly with a primary winding and a secondary winding. The secondary winding has a higher number of turns than the primary winding. The coil assembly is enclosed in a housing to protect it from the heat and petrol vapours that are present in engine bays. The housing also needs to be able to withstand the high-voltage that the coils produce, and the wires that connect them to the car's spark plugs.

The primary winding of a coil is made up of copper wire or other conductor, wrapped around a cylindrical bobbin. The bobbin is insulated from the magnetic core by an overmold. The core is a ferromagnetic steel cylinder. A projection extends radially from the cylinder, and is supported on the insulating overmold.

There are a variety of different designs of ignition coils, and they can be found in both modern cars and older vehicles. Some of them are grouped together in a coil pack, and these units are called rail coils. The primary coils in these units are arranged parallel to each other, and they are fitted across a row of several spark plugs. Other types of coils are grouped into single units known as pencil coils or top plug coils, and these are fitted directly above the spark plug holes.

Pencil coils are designed to take advantage of limited space, and they can be found in many applications including cylinder head ignition systems. They can deliver substantial primary output, even at short dwell periods. However, they may not be as strong as other types of coils during long dwell periods, and they are known to be failure prone.

Valeo, as one of the leading original equipment ignition coil suppliers, offers a variety of options for your car's spark plug system. These include wet coils, compact coils (1 to 8 outputs), pencil ignition coils, top plug ignition coils and rail ignition coils. These products are all made to the OE specifications and standards of quality and reliability. They are also backed by comprehensive warranties to provide peace of mind for every purchase. For more information, you can visit the official website of the company and check out its wide range of products and services. The company caters to major OE manufacturers, co-manufacturers, traditional aftermarket distributors and rebuilders. It is committed to providing the best products that meet the highest standards in the industry and exceed the customer's expectations. Its advanced technology and independently developed processes ensure optimal quality, efficiency and productivity in design, production, inspection and shipping. In addition, it is dedicated to delivering value and sustainability in all its operations. Its global network of manufacturing plants, distribution centers and sales offices ensures the delivery of exceptional customer service.