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:
Dec. 08, 2009
Filed:
Jul. 13, 2007
Norihito Fujiyama, Obu, JP;
Norihito Fujiyama, Obu, JP;
Denso Corporation, Kariya, JP;
Abstract
An ignition coil includes a coil body, a connector, a coil case, a filling resin, and a vent groove. The coil body includes a primary coil, a secondary coil, and a center core. The secondary coil has a secondary spool and a secondary wire wound around the spool. The center core is provided on an inner peripheral side of the secondary spool. The connector is coupled with an end of the coil body. The connector has an aligning part adapted for centering the center core. An end of the secondary spool has a tubular shape adapted for engagement with an outer periphery of the aligning part. The vent groove is provided to facing surfaces of the aligning part and of the end of the second spool. The vent groove is adapted for releasing gas around the center core to an exterior of the secondary spool.