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:
Apr. 17, 1984
Filed:
Dec. 22, 1981
Mineo Kashiwaya, Katsuta, JP;
Tohru Nakagawa, Mito, JP;
Kinsaku Yamada, Katsuta, JP;
Hiroshi Kamifuji, Katsuta, JP;
Yoshishige Oyama, Katsuta, JP;
Hiroshi Kuroiwa, Hitachi, JP;
Hisato Tsuruta, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A heat-type flow sensor is provided on the upstream side of a Venturi portion formed in an air-intake path and in an air bypass communicating with the Venturi portion. An electromagnetic device is provided to control the amount of air flowing in the air bypass so that the output of the heat-type flow sensor converges to a set level. This electromagnetic device drives a fuel-scaling valve to scale fuel in accordance with the change of the amount of air supplied to the engine, and this scaled fuel is continuously injected into the air-intake path.