Apparatus and method for measuring the breakdown voltage between

Apparatus for detecting misfire in internal combustion engine

Apparatus for measurement of spark plug ignition current to moni

Apparatus for recognizing missing or poor firings in otto engine

Apparatus for visually monitoring ignition voltages

Automated determination of the size of a gap in an article...

Buffered ion sense current source in an ignition coil

Circuit arrangement for measuring an ion current in a combustion

Circuit for ion current measurement in combustion space of an in

Circuit for measuring ionization current in a combustion...

Combustion monitoring apparatus for internal combustion engine

Combustion state detecting apparatus for an internal-combustion

Combustion state detecting apparatus for internal combustion eng

Combustion state detecting apparatus for internal combustion...

Detecting misfiring in spark ignition engines

Device and method for detecting engine combustion condition

Device for accurately detecting ion current of internal combusti

Device for detecting abnormality of spark plugs for internal com

Device for detecting misfire of an internal combustion engine by

Device for testing a solid state glow plug controller