Spark plug boot insulator
AssigneeGeneral Motors Corporation
InventorsWilliam Thomas Phillips, Jr., Michael James Bezusko, Vincent James Tura, Jr.
Life of this patent
Estimating the term…
Abstract
A spark plug boot assembly for interfacing an ignition signal conductor and a spark plug, the assembly including a spark plug boot having a hollow electrically conductive cylinder disposed on an interior boot surface, the cylinder having a flared lower cylinder end extending through the interior boot surface over a spark plug post-socketed terminal contact area, and having an upper cylinder end extending over the socketed terminal including over any crimp section of the socketed terminal. The cylinder further includes a seat for seating a collar about the socketed terminal when a full terminal insertion position is reached.
Claims12
A shielded spark plug boot assembly, comprising:
- a tubular boot having an interior wall forming a central bore through the boot along the longitudinal axis of the boot with an upper boot end portion for receiving an ignition signal conductor terminating in a socketed terminal and with a lower boot end portion for receiving a spark plug having an insulator portion from which extends a spark plug post, the lower boot end portion sized to seal against the insulator portion;
- and
- a hollow, cylindrical, electrically conductive shield sized to securely fit within the central bore and having opposing upper and lower shield ends, the upper shield end for receiving and extending over the socketed terminal and the lower shield end for receiving and extending over the spark plug post.
A spark plug boot assembly through which an ignition cable terminating in a socketed terminal is electrically linked to a spark plug having an insulator section from which extends a spark plug post, comprising:
- a hollow tubular boot having a passage therethrough surrounded by an interior boot wall, the passage terminating, at a first boot end, in a cable end portion sized to receive the ignition cable and terminating, at a second boot end opposing the first boot end, in a spark plug end portion sized to receive a spark plug and to seal against the spark plug insulator;
- and
- a metallic cylinder securely attached to the interior boot wall and having an upper cylinder end sized to receive the socketed terminal, the cylinder further having a flared lower cylinder end opposing the upper cylinder end and sized to receive the spark plug post, the flared lower cylinder end extending through the interior boot wall when the metallic cylinder is attached to the interior boot wall.
Dependencies are inferred from the claim text.