Yamaha Hatsudoki Kabushiki Kaisha

Kunihiko Nakajima

Seiji Sawai

Toshimitsu Iio

Atsushi Kanda

Jiro Watase

Kyoshi Sato

A number of embodiments of induction systems for internal combustion engines that permit operation on the Miller cycle without introducing pumping losses or by substantially minimizing the pumping losses. Basically, the system provides a variable volume air chamber that supplies the major portion of the intake charge or all of the intake charge under low-speed, low-load conditions. Various valving and variable volume chamber constructions are illustrated. In addition, embodiments using air-assisted fuel injection are also disclosed.

Intake control system for engine

A three-function single-lever switch for a motorcycle which includes two mutually pivoted mounts and a slider on one of the mounts, whereby the slider is rotatable around two axes and slidable on a third, whereby selectively to make three possible circuit connections.

Growing community of inventors

Iwata, Japan

Kunihiko Nakajima