Federal-mogul World Wide, Inc.

Federal-mogul Ignition Company

Federal-mogul Corporation

Mark McMurray

Kevin J Kowalski

Frederick James Quitmeyer

James D Lykowski

Lawrence W Geer

Thomas R Nohl

William John Walker, Jr

Shuwei Ma

Richard L Keller

John William Hoffman

Marc Brandt

Richard E Callahan

Kevin Miller

James L May

Myron Jeffery Schmenk

Brian A Bolduc

David Walker

Michael S Joseph

Matthew C Ware

A piston and method of construction are provided. The piston has a piston body with an insert forming at least a portion of an upper combustion surface. The piston body is constructed from a first material having a first thermal conductivity and the insert is constructed from a second material having a second thermal conductivity. The first thermal conductivity is less than the second thermal conductivity. The piston body has an upper crown and a pair of pin bosses depending from the upper crown with the pin bosses presenting pin bores aligned with one another along a pin bore axis. The upper crown includes a recess in which the insert is fixed.

Piston and method of construction thereof

A spark plug and method of construction thereof is provided. The spark plug includes a metal shell having a through cavity, a lower insulator and a plastic upper insulator. The lower insulator is received in the through cavity and has a through passage with a center electrode received therein. A ground electrode is operatively attached to the shell in spaced relation from the ground electrode to provide a spark gap. The plastic upper insulator has a distal end received in the through cavity of the shell and a terminal end extending axially outwardly from the shell. The upper insulator has a through passage extending between the terminal end and the distal end. An elongate conductive member is received in the through passage of the upper insulator and is configured for electrical communication with the center electrode.

Spark plug having a plastic upper insulator and method of construction

A spark ignition device, ground electrode therefor, and methods of construction thereof are provided. The spark ignition device includes a generally annular ceramic insulator with a metal shell surrounding at least a portion of the ceramic insulator. A center electrode is received at least in part in the ceramic insulator and a ground electrode extends from the shell to a free end portion. A firing tip is attached adjacent the free end portion of the ground electrode to provide a spark gap between the center electrode and the firing tip. The free end portion is at least partially bounded by at least one 'as laser cut' peripheral side extending adjacent the firing tip.

Spark ignition device and ground electrode therefor and methods of  construction thereof

Spark ignition device and ground electrode therefor and methods of construction thereof

A spark plug for igniting gases in an internal combustion engine is disclosed. The spark plug has a center electrode, an insulator, a one-piece shell, and a terminal. The center electrode is in communication with an energy source. The insulator surrounds the center electrode. The one-piece shell surrounds and contacts the insulator for securing the insulator within the shell, wherein the shell has a plurality of threads near a first end and a ground electrode attached to the shell and aligned with a tip of the center electrode at a second end to define a spark gap. Further, a seat is formed in the shell between the plurality of threads and the ground electrode for sealing the shell against the engine. The terminal has a first end in communication with the center electrode and a second end which has a connector portion for connecting to the energy source.

One piece shell high thread spark plug

A method of making an ignition device and center wire assembly that includes first, second and third electrode members, a conductive seal, and a noise suppressing seal. The method locates the first electrode member at an axial end of the center wire assembly near a spark gap and the third electrode member at an axial end of the center wire assembly such that it receives an electrical ignition pulse and a second electrode member between the first and third electrode members. Furthermore, the method locates the conductive seal between the first and second electrode members and the noise suppressing seal between the second and third electrode members.

Method of making a spark plug having a multi-tiered center wire assembly

An ignition and diagnostic system () for an internal combustion engine includes a sparking device () through which a low voltage diagnostic device () monitors a sensing feature, for example spark gap () conditions, during spark intervals and returns diagnostic feedback to an engine control module (). A coil () is electrically operatively connected to the sparking device () through a lead wire (). The lead wire () can be removed and reinstalled with respect to the sparking device () via a flexor joint () for installation and maintenance. The flexor joint () enables positive electrical contact during operation so that low voltage signals from the diagnostic device () are maintained even during severe vibration conditions. The flexor joint () includes in one embodiment a compression spring () which is fully compressed or over-compressed. In another embodiment, the flexor joint () comprises a tubular sleeve (') having cantilevered upper tangs (&#x2032;) which resiliently engage the lead wire (), and lower tangs () which similarly engage the center wire () of the sparking device () in a resilient manner.

Spark ignition system with diagnostic capabilities

A spark plug center wire assembly that includes a noise suppressing conductive seal with improved isolation of the seal from the heat generated at the firing end of the spark plug. The center wire assembly includes a firing electrode, a conductive glass seal, an intermediate electrode, the noise suppressing glass seal, and a terminal electrode. By locating the firing electrode, conductive seal and intermediate electrode between the noise suppressing seal and the spark gap, the center wire assembly is able to utilize the noise suppression attributes of the suppressive seal, while distancing the seal from the high temperatures created during the combustion process. A method of manufacturing the same is also disclosed in which the two glass seals are formed by sequential firing operations.

Spark plug having a multi-tiered center wire assembly

Growing community of inventors

Toledo, OH, United States of America

Mark McMurray