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:
Dec. 12, 1978
Filed:
Jun. 22, 1977
Osamu Ito, Toyota, JP;
Nobuhito Hobo, Inuyama, JP;
Yutaka Suzuki, Nishio, JP;
Itsushi Kawamoto, Chiryu, JP;
Takashi Naitou, Kariya, JP;
Makoto Shiozaki, Toyota, JP;
Yoshimune Konishi, Kariya, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
A desired function signal is provided by a logical circuit which selects one of a signal corresponding to the speed of a vehicle carrying an internal combustion engine, a signal corresponding to the intake pressure, a signal corresponding to the air-to-fuel ratio of the mixture supplied to the engine, and a signal corresponding to the opening of a throttle valve in accordance with the driving conditions of the vehicle. The amount of additional intake air flowing through an additional intake system provided in the engine is controlled in accordance with the desired function signal, thus providing an air-fuel mixture ratio which suits the driving conditions of the vehicle, the running speed of the vehicle in particular.