Visteon Global Technolgoies, Inc.

Gregg Michael Stefansky

William Douglas Walker

Todd Christopher Sexton

Alex William Widiger

An ignition coil assembly module (,) that can be connected to and disconnected from an engine spark plug. The module elements are arranged as a succession of cylindrical layers about a central ferromagnetic core (,). From innermost to outermost, the succession is: a) a secondary bobbin (,), b) a secondary coil (,), c) a secondary encapsulant (,) encapsulating the secondary coil, d) a primary bobbin (,), e) a primary coil (,), f) an inner wall (,) of an environmental shield (,) encapsulating the primary coil, g) a ferromagnetic shell (,), and h) an outer wall (,) of the environmental shield encapsulating the shell. The primary bobbin forms a liquid container for holding secondary coil encapsulant. A terminal (,) extends through a transverse wall (,) of the primary bobbin for carrying secondary current from the secondary coil to another terminal (,) on the other side of the transverse wall that connects to a spark plug (,). The two terminals are connected together by a mechanical locking connection that keeps them together when the module is disconnected from the spark plug.

Pencil ignition coil assembly module

An ignition coil assembly module (40) that can be connected to and disconnected from an engine spark plug. The module elements are arranged as a succession of cylindrical layers about a central ferromagnetic core (46). From innermost to outermost, the succession is: a) a secondary bobbin (48), b) a secondary coil (58), c) a secondary encapsulant (194) encapsulating the secondary coil, d) a primary bobbin (50), e) a primary coil (56), f) an inner wall (181) of an environmental shield (42) encapsulating the primary coil, g) a ferromagnetic shell (52), and h) an outer wall (180) of the environmental shield encapsulating the shell. The primary bobbin forms a liquid container for holding secondary coil encapsulant. A terminal (100) extends through a transverse wall (71) of the primary bobbin for carrying secondary current from the secondary coil to another terminal (118) on the other side of the transverse wall that connects to a spark plug (80). The two terminals are connected together by a mechanical locking connection that keeps them together when the module is disconnected from the spark plug.

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Brighton, MI, United States of America

Gregg Michael Stefansky