Nippondenso Co., Ltd.

Toyota Jidosha Kogyo Kabushiki Kaisha

Yoshihiko Huruya

Yutaka Suzuki

Yoshihiko Tsuzuki

Nobuhito Hobo

Osamu Ito

Suguru Sato

Itsushi Kawamoto

Hironari Nukata

Kenro Sekino

There is provided a vehicle engine-driven alternator wherein an internal combustion engine is coarsely adjusted to a preset speed by an engine governor, the turning driving force of the engine is transmitted to an alternator through a magnetic slip coupling, and the excitation current to the magnetic slip coupling is controlled by an excitation control circuit which compares the number of revolutions of the alternator with a preset value to generate an output depending on the result of the comparison, thereby providing a source of alternating current having an extremely accurate preset frequency.

Alternator driven by a vehicle engine

Growing community of inventors

Oobu, Japan

Yoshihiko Huruya