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:
Jul. 23, 1991
Filed:
Mar. 15, 1990
Applicant:
Inventor:
Daniel Eygret, Le Chesnay, FR;
Assignee:
Solex, Nanterre, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M / ; F02D / ;
U.S. Cl.
CPC ...
123491 ; 1231 / ;
Abstract
A fuel supply device for an internal combustion engine comprises at least one electrically controlled injector feeding fuel under pressure into the intake manifold of the engine and an electronic control circuit connected to sensors responsive to operating parameters of the engine, particularly the engine speed, and delivering periodic signals of variable duty ratio to the injector. The control circuit applies asynchronous electrical signals to the injector as long as the running speed of the engine does not reach a predetermined threshold value. The asynchronous signals have a frequency very much higher than that which the synchronous operative law would cause.