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:
Sep. 03, 1985
Filed:
Jun. 24, 1983
Yoshihiro Sakurai, Iwata, JP;
Abstract
Several embodiments of charge forming devices embodying enrichment circuits that provide enrichment substantially only when the engine is running above its idle speed and below a predetermined slow speed so as to improve running without excessive fuel consumption under high speed conditions. In each embodiment, the enrichment circuit includes a port in the induction passage upstream of the idle position of the throttle valve and which is served by a fuel well. In accordance with one embodiment of the invention, the discharge of the enrichment circuit is controlled by a throttle valve position responsive valve. In this embodiment, the throttle valve position responsive valve may comprise the pumping element of the accelerating pump. In other embodiments of the invention, the discharge of the enrichment circuit is controlled by providing restricted communication between the fuel source and the enrichment fuel well.