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:
Aug. 24, 1982
Filed:
Mar. 25, 1980
Robert T Magrane, Reno, NV (US);
Nando A Fontana, West Springfield, MA (US);
Eltra Corporation, Toledo, OH (US);
Abstract
An ignition system for a small internal combustion engine is disclosed, including a magnetic trigger rotor (33) having two magnets (45) disposed in arcuate slots (43), with a radial slot (41) disposed between the arcuate slots (43) for causing an abrupt flux reversal in a pickup coil (35) to generate an initial ignition timing signal, and two or more holes (47), (49) adjacent the radial slot and made in the direction of the axis of rotation of the rotor, for causing flux distortions which becomes significant at higher rotational speeds, to give a step-type ignition advance. Also disclosed are charging coils (21) for charging a capacitor (C1) in a capacitor discharge ignition system, which are part of a separate assembly than generating coils (23) usable for powering lights and other accessories on a vehicle equipped with an engine having an ignition system according to the invention, which are a separate assembly, so that such an ignition system may be provided without generating coils for applications where they are not required. Charging coils (21) and generating coils (23) are in separate semi-circular assemblies, and are initially produced by making a circular assembly, and severing it into sections.