Kawasaki Jukogyo Kabushiki Kaisha

Kawasaki Motors, Ltd.

Masashi Ono

Ichiro Tanaka

Hiroshi Ishii

Satoshi Matsumoto

Daisuke Saeki

Tomo Yamamoto

Toshiyuki Tsubone

Kyohei Izumi

Shinji Ikeda

Yota Katsukawa

Takashi Uchida

Yoshihito Uchino

Kotaro Hanabusa

A rotation position detection device includes a change drum, a magnetic field generator, and a magnetic field detector. The magnetic field generator is fixed to the change drum and rotates along with the change drum to differentiate an ambient magnetic field. The magnetic field detector is formed separately from the magnetic field generator and fixed to a position at which a magnetic field changes in response to rotation of the magnetic field generator so as to detect the magnetic field and output a signal that depends on the rotational position of the change drum on the basis of the detection result.

Rotation position detection device for change drum and motorcycle

A motorcycle includes a fuel tank, a vehicle body frame, a pair of front forks, and a canister. The fuel tank contains gasoline therein. The vehicle body frame supports the fuel tank. The pair of front forks are placed spaced apart from each other in a vehicle width direction to support a front wheel from both sides in the vehicle width direction such that the front wheel is rotatable, and mounted to the vehicle body frame such that the pair of front forks are rotatable around a head pipe. The canister adsorbs gasoline contained in a gasoline vapor present inside the fuel tank and supplies the gasoline to an engine. The canister is placed inward in the vehicle width direction relative to the pair of front forks when viewed from a front, and in front of an engine when viewed from a side.

Motorcycle

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 chamber () for a motorcycle is disposed at a location upstream of a muffler () of an exhaust passage () leading from a combustion engine (E). The exhaust chamber () includes a chamber body () having expansion compartments () defined therein, a chamber outlet pipe () having an outlet passage defined therein for discharging the exhaust gases (G) from the chamber body (), and an exhaust control valve () disposed in the chamber outlet pipe () for adjusting the sectional area of the outlet passage inside the chamber outlet pipe ().

Exhaust chamber in motorcycle exhaust system

Growing community of inventors

Kako-gun, Japan

Masashi Ono