Yamaha Hatsudoki Kabushiki Kaisha

Jun Noguchi

Shiro Fukuda

Hideki Furuta

Yuki Yamaguchi

Taiga Ishimaru

An outboard motor performs assist control of assisting rotation of a crankshaft and performs power running rotation speed range expansion control of expanding a power running rotation speed range of a rotary electric machine in a state in which the crankshaft is rotated at a rotation speed within a cranking rotation speed range due to rotation of a rope reel.

Outboard motor, engine starter, and engine starting method

An outboard motor power generation system includes an engine, a power generator, a converting device configured to convert alternating-current power into direct-current power, an engine cover configured to cover the engine, the power generator, and the converting device, a battery, and a transformer provided on an electric pathway between the converting device and the battery and configured to raise the voltage of the direct-current power output from the converting device relative to the charge voltage of the battery.

Outboard motor power generation system and outboard motor

An outboard motor includes an engine, a power generator including a rotor and a stator, a convertor, and an engine cover configured to cover the engine and the power generator. The rotor includes a permanent magnet.

Outboard motor

A marine propulsion device, including an engine including a crankshaft, and a power generator including a rotor configured to be rotated by the crankshaft, and a stator arranged to face the rotor, the stator including a first coil group and a second coil group each configured to generate alternating current (AC), the second coil group being configured to generate more electric power than the first coil group. The marine propulsion device further includes a rectifier configured to rectify the AC generated by the first coil group to thereby obtain a first direct current (DC), and to output the first DC to a first battery, a converting device configured to convert the AC generated by the second coil group into a second DC, and a transformation device configured to transform a voltage of the second DC, and to output the voltage-transformed DC to a second battery.

Growing community of inventors

Iwata, Japan

Jun Noguchi