It is possible to effectively dampen combustion pressure pulsations with the rail itself.
The application of returnless systems is expanding as a measure to reduce fuel vapor emissions in gasoline engines. Consequently, fuel pressure pulsations are increasing, making a pulsation damper necessary. UFRID can effectively dampen fuel pressure pulsations within the rail itself, preventing unpleasant cabin noise induced by fuel pressure pulsations without the need for a pulsation damper. By making the rigidity of the rail smaller than the bulk modulus of the fuel, it effectively absorbs the energy of the pulsations generated during fuel injection while ensuring the strength required for the rail. 【Features】 ○ Eliminates the need for a pulsation damper by adopting UFRID ○ Contributes to reducing system cost and weight For more details, please contact us or download the catalog.
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【Features】 ○ Effectively dampens fuel pressure pulsations through the rail itself. ○ Unpleasant cabin noise induced by fuel pressure pulsations can be prevented without a pulsation damper. ○ By making the rigidity of the rail smaller than the bulk modulus of the fuel, it effectively absorbs the energy of the pulsations generated during fuel injection while optimizing to ensure the required strength of the rail. ● For more details, please contact us or download the catalog.
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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.