Kawasaki Jukogyo Kabushiki Kaisha

Yota Katsukawa

Satoshi Matsumoto

Akira Soeda

Yoshitaka Awazu

Toshiyuki Tsubone

Masashi Ono

Hidehiko Yamamoto

Shiken Hayashi

Naoki Tamai

Kenji Idaka

Tatsuhiko Kanzawa

Kazumasa Wakahara

Kenta Matsubara

An air cleaner mounted on a motorcycle for purifying an engine intake air includes a lower casing forming a cleaner main body, a covering for covering an upward region of the lower casing, a cleaner element disposed inside the lower casing and positioned below a mating interface between the lower casing and the covering, and a partition wall formed in the lower casing for supporting the cleaner element and forming a part of a wall of a clean chamber.

Air cleaner for motorcycle

A motorcycle frame assembly (FR) for a motorcycle includes a main frame (), which extends from above a combustion engine (E) in a direction rearwardly, and a subframe () having front and rear end portions connected with the main frame () and also having an intermediate portion positioned laterally outside of a cylinder block () of the combustion engine (E). The combustion engine (E) is fixed to a motorcycle frame assembly (FR) by means of first, second and third engine mounting areas (M, M, M). The first engine mounting area (M) is provided in the intermediate portion of the subframe () and, also, a damping unit () for suppressing vibrations of a to-be-damped region () is provided in the to-be-damped region () provided at a location remote from the first engine mounting area (M) in the subframe ().

Saddle-riding type automotive vehicle

A motorcycle includes an exhaust chamber (), having defined therein a chamber expansion compartment () for exhaust gases, and a muffler () having defined therein muffler expansion compartments () for the exhaust gases on a downstream side of the exhaust chamber (). Respective outer peripheral walls of the exhaust chamber () and the muffler () are formed by a common casing (). The exhaust chamber () is positioned intermediate between a motorcycle combustion engine (E) and a motorcycle rear wheel (). The exhaust chamber () has an inner side surface positioned laterally inwardly of an outer side surface () of the rear wheel () in a motorcycle body widthwise direction, and the muffler () has a rear portion positioned laterally outwardly of the rear wheel ().

Exhaust system for a motorcycle

An exhaust device for adjusting an exhaust gas cross sectional area of an exhaust passage in a combustion engine includes a valve body arranged in the exhaust passage communicating to an exhaust port of the combustion engine; a valve shaft fixed or integrally formed to the valve body and arranged so as to transverse the exhaust passage, the valve shaft changing the opening of the valve body by turning with the valve body about an axis of the valve shaft; a pair of bearing members for supporting rotatably the valve shaft at both ends thereof in a axial direction of the valve shaft; and a stopper arranged on the valve shaft so as to face an end face on the inward side of the exhaust passage of each bearing member in the axial direction. The stopper is restricted in the axial direction by the end face of each of the bearing members so that the valve body and the valve shaft do not move in the axial direction.

Exhaust device in combustion engine, and motorcycle therewith

Growing community of inventors

Himeji, Japan

Yota Katsukawa