US 11,754,022 B2
Straddled vehicle
Atsuya Hidai, Shizuoka (JP); Hisatoshi Kinoshita, Shizuoka (JP); Kazuteru Iwamoto, Shizuoka (JP); Atsushi Hirano, Shizuoka (JP); and Tatsuya Kasahara, Shizuoka (JP)
Assigned to YAMAHA HATSUDOKI KABUSHIKI KAISHA, Iwata (JP)
Filed by YAMAHA HATSUDOKI KABUSHIKI KAISHA, Iwata (JP)
Filed on May 30, 2022, as Appl. No. 17/828,004.
Claims priority of application No. 2021-091962 (JP), filed on May 31, 2021.
Prior Publication US 2022/0389886 A1, Dec. 8, 2022
Int. Cl. F02M 25/08 (2006.01); B62K 11/04 (2006.01); B62J 9/00 (2020.01); B62J 45/41 (2020.01); B62J 35/00 (2006.01)
CPC F02M 25/08 (2013.01) [B62J 9/00 (2013.01); B62J 35/00 (2013.01); B62J 45/41 (2020.02); B62K 11/04 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A straddled vehicle comprising:
a frame;
a seat supported by the frame;
a storage box supported by the frame;
an engine having an engine body, at least a part of the engine body overlapping with the seat in a top view of the straddled vehicle, the engine having an intake passage;
an intake system configured to take air into the engine, the intake system including an intake system component;
a fuel system including a fuel tank, the fuel tank being configured to store fuel to be supplied to the engine, the fuel system further including a fuel system component;
an evaporative emission system having a canister and a gas passage that includes an outside-air-introduction passage, the evaporative emission system being configured
to collect a fuel evaporation gas generated in the fuel tank using the canister,
to introduce outside air into the canister from the outside-air-introduction passage, and
to discharge the collected fuel evaporation gas and the introduced outside air from the canister into the intake passage of the engine;
a pressure sensor configured to measure a pressure in the gas passage, in which a gas including at least one of the fuel evaporation gas or the outside air flows; and
at least one of an electric vent valve or an electric suction pump, the electric vent valve being configured to switch between a closed state in which the outside-air-introduction passage is closed and an open state in which the outside-air-introduction passage is open, the electric suction pump being configured to suck the gas in the gas passage, wherein
at least one of the pressure sensor, the vent valve, or the suction pump is supported by at least one of the frame, the storage box, the engine body, the intake system component, or the fuel system component.