Toyoda Gosei Develops Lightweight Plastic Turbo Duct
Weight reduced by half with use of plastic
Kiyosu, Japan, March 27, 2019: Toyoda Gosei Co., Ltd. has developed a turbo duct made entirely of plastic. This reduces weight by half and will contribute to the environmental performance of automobiles. The new lightweight plastic turbo duct is used on the new HiAce for international markets that Toyota Motor Corporation launched in February 2019.
Turbo ducts are used in sending compressed air to cylinders to raise engine output. They have conventionally been made of several metal, rubber and plastic sections to ensure high pressure and heat resistance as well as the ability to absorb engine vibration.
For the new all-plastic turbo duct, Toyoda Gosei has adopted a suction blow molding* technique capable of forming the long, complex duct shape to mold the entire duct of plastic, and achieved a weight reduction of about fifty percent. Use of the soft plastic for the material and design modifications such as a bellows shape in some sections ensure the duct’s pressure and heat resistance and vibration absorption performance.
With its expertise as a specialist in the field of rubber and plastics, Toyoda Gosei will continue to actively pursue lighter weight products and other new technologies.
*Blow molding is a process in which a hollow center is formed by blowing air into plastic that has been poured into a mold. It is used for everyday items such as plastic bottles. Suction blow molding is a technique that combines blow molding and suction. Plastic poured into a mold from above is suctioned from the bottom and after it has diffused throughout the long cavity air is blown in to form the hollow center.
Conventional turbo duct
Turbo mechanism (diagram)
About Toyoda Gosei
Established in 1949 and headquartered in Kiyosu, Aichi Prefecture, Japan, Toyoda Gosei is a leading specialty manufacturer of rubber and plastic automotive parts. Today, the Toyoda Gosei Group provides a variety of high-quality products internationally, with a network of approximately 100 plants and offices in 18 countries and regions. Through its flexible, integrated global supply system and leading-edge technologies, Toyoda Gosei aims to grow as a global company that acts flexibly and swiftly in today’s dramatically changing business environment, delivering the highest levels of satisfaction to customers worldwide through safety, comfort, well-being and the environment.