Ignition coil assembly with spark plug connector

US6668810B1 · kind B1 · utility

Assignee

• Visteon Global Technologies, Inc. · US

Inventors

• Richard William St. John · Ann Arbor, US
• William Douglas Walker · Saline, US
• Todd Christopher Sexton · Brighton, US
• Rick S. Burchett · Ypsilanti, US
• Alex William Widiger · Canton, US
• Francis Martin Donahue · Ypsilanti, US

Key dates

• Filing date: Nov 6, 2002
• Grant date: Dec 30, 2003
• Expiry date: Nov 6, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02P3/02
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An ignition coil assembly of the type which is directly mounted onto an associated internal combustion engine spark plug. The coil assembly includes a spark plug boot section made of a highly elastic material with an inside cylindrical passageway. The inside passageway features ribs which engage a high voltage connection coil spring positioned in the passageway to make an electrical connection between the coil and spark plug high voltage terminals. The spring has a generally constant outside diameter outer section except its end segments have a reduced diameter where they contact the high voltage terminals. The passageway ribs retain the spring in position prior to its installation and after its removal from the associated spark plug.