Measuring and testing – Fluid pressure gauge – Combined
Patent
1998-06-30
2000-08-01
Dombroske, George
Measuring and testing
Fluid pressure gauge
Combined
73 3512, 73756, G10L 2300, G01M 1500
Patent
active
060949902
ABSTRACT:
A spark plug is installed in an internal combustion engine to monitor engine performance. The spark plug includes a core having a central longitudinal axis and defining a first bore extending along the central longitudinal axis. A layer of insulation surrounds the bore. A sensor is located within the bore. A first electrode is embedded in the core remote from the bore. The electrode includes a firing portion at a firing end of the spark plug. A ground electrode is arranged adjacent to the firing portion of the first electrode.
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Ingham Robert S.
Lykowski James D.
Schuster Thomas R.
Cooper Automotive Products, Inc.
Dombroske George
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