It is a fluid clutch that controls the cooling fan for the engine at the appropriate rotation speed.
The ECFD (Externally Controlled Fan Drive) uses an electromagnet instead of a bimetal to control the fan speed by inputting an electrical signal from an external source, as opposed to the conventional fan drive that relies on a bimetal responding to the air temperature after passing through the radiator. It incorporates information such as engine coolant temperature, engine speed, and fan speed into the ECU, calculates the ideal fan speed for the engine, and converts that information into an electrical signal to control the ECFD. 【Features】 - Always enables optimal fan speed control for engine cooling. - Improves fuel efficiency, enhances engine combustion efficiency, and reduces fan noise. - Offers a lineup of ECFDs ranging from small to large sizes. For more details, please contact us or download the catalog.
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basic information
【Features】 ○ Unlike conventional fan drives that control fan speed based on the air temperature after passing through the radiator using a bimetallic sensor, this system uses an electromagnet instead of a bimetallic sensor and inputs an electrical signal from the outside to control the fan speed. ○ Information such as engine coolant temperature, engine speed, and fan speed is collected by the ECU, which calculates the ideal fan speed for the engine and converts that information into an electrical signal to control the ECFD. ○ Always enables optimal fan speed control. ○ Improvement in fuel efficiency. ○ Enhancement of engine combustion efficiency. ○ Reduction of fan noise. ● For more details, please contact us or download the catalog.
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Company information
Usui International Industries Co., Ltd. has been striving for the development of new products since its establishment in 1941, accumulating technology and obtaining numerous patents, contributing to the development of the global automotive industry and thereby contributing to societal progress and the enriched lives of people. Usui International Industries primarily focuses on automotive piping, offering a wide range of products globally, including high-pressure fuel injection pipes for common rail systems, pulsation-reducing fuel rails for MPI, high-pressure fuel rails and connecting pipes for gasoline direct injection engines, cooling fans, fan drives (bimetal type and external control type), multi-tube heat exchangers, metal gaskets, and more, along with meticulous services. Moving forward, we are committed to creating new core industries based on these foundations. As the globalization of the automotive industry progresses, we have expanded our production and sales bases not only in the United States, Thailand, and China but also newly into India, Indonesia, and Mexico. We aim to enhance customer support at our sales bases in France, Germany, and South Korea, while also strengthening our overseas network, including technical partnerships in Taiwan, Thailand, Indonesia, and India, as we strive to become a true global company.
