The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 1976
Filed:
Oct. 25, 1974
Nobuhito Hobo, Inuyama, JA;
Osamu Ito, Toyota, JA;
Yoshihiko Tsuzuki, Anjo, JA;
Yutaka Suzuki, Nishio, JA;
Itsushi Kawamoto, Kariya, JA;
Suguru Sato, Oobu, JA;
Yoshihiko Huruya, Oobu, JA;
Kenro Sekino, Toyota, JA;
Hironari Nukata, Toyota, JA;
Nippondenso Co., Ltd., Kariya, JA;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JA;
Abstract
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.