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. 10, 2001
Filed:
Nov. 12, 1999
Jeffrey Dan Ogden, Anderson, IN (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
An ignition coil has concentrically arranged components including a core, a secondary winding spool adjacent to the core, a secondary winding wound on the spool, a case made of electrical insulating material, a primary winding wound on an outer surface of the case, and a shield disposed radially outwardly of the primary winding. The case is configured so as to allow the primary winding to be wound thereon and to space the shield a predetermined space from the primary winding. A radially inner surface of the case and a radially outer portion of the secondary winding define a single potting channel for receiving an epoxy potting material. The configuration eliminates the primary winding spool, which reduces material cost, and further eliminates the effective dielectric contribution of the primary winding spool for reduced capacitance to thereby provide improved secondary winding output.