Provided is an air intake device for a motorcycle, the air intake device having increased air intake efficiency which improves the engine performance and capable of improving the quality of an air intake sound. An air intake device for a motorcycle is configured in such a manner that: an air cleaner (36), which has a main intake opening (41) at the front end thereof, is disposed between a left and right pair of main frame members (1a, 1b) for forming a main frame (1); introduction passages (43), which take in a relative air current as engine intake air (A), are formed within the main frame (1); the intake air introduction openings (40) of the introduction passage (43) are provided in the main frame members (1a, 1b) at positions behind the main intake opening (41) of the air cleaner (36); an intake air outlet opening (39) which is open rearward and which is connected to the main intake opening (41) is formed at the center, in the width direction of the vehicle, of the front part of the main frame (1); and the air intake device is provided with a sub-intake opening (42) which is connected to the main intake opening (41) and which introduces the intake air (A) into the main intake opening (41) from the vicinity of the main intake opening (41).
Air intake device for motorcycle
2015-12-30
Patent
Electronic Resource
English
IPC: | B62K Fahrräder , CYCLES / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF |