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:
Oct. 12, 1976
Filed:
Mar. 31, 1975
Hisasi Kawai, Toyohashi, JA;
Ritsu Katsuoka, Okazaki, JA;
Nippon Soken, Inc., Nishio, JA;
Abstract
A fuel injection controlling system for an internal combustion engine comprising an oscillator circuit for generating clock pulses having a frequency corresponding to the air-to-fuel ratio of the mixture, a first detecting circuit for generating pulse signals having a time width corresponding to the rate of air flow to the engine, a first multiplier circuit for generating an output corresponding to the product of the air-to-fuel ratio and the rate of air flow in a binary coded form, a second detecting circuit for generating signals having a pulse width proportional to the rotational speed of the engine, a second multiplier circuit for generating an output corresponding to the product of the air-to-fuel ratio and the rate of air flow and the rotational speed of the engine in a binary coded form, and a conversion circuits for generating pulse signals each corresponding to the output of the second multiplier circuit, whereby fuel injection valves are actuated by the output of the conversion circuit.