MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202617086012 A) filed by Yamaha Hatsudoki Kabushiki Kaisha on July 14, 2026, for Alcohol-Containing Fuel Engine System And Vehicle.
Inventor includes Hanazono, Yuichi.
The application for the patent was published on September 11, 2026, under issue no. 37/2026.
Abstract: In an alcohol-containing fuel engine system (1), an exhaust passage (12) includes a high-thermal-conductivity in-engine exhaust passage (121), a low-thermal- conductivity upstream exhaust passage (122), a catalyst (123), an intermediate exhaust passage (124), and a muffler (125). The high-thermal-conductivity in-engine exhaust passage (121) is configured such that the length (L1) thereof in an exhaust gas flow direction is less than the length (L2) of a most upstream part (1222) when the low-thermal-conductivity upstream exhaust passage (122) is divided into five portions of equal length, and is greater than the half of the length (L2) of the most upstream part (1222).
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