Spark plug microwave adapter

Spark plug port compression cap

Spark plug with a measurement device

Spark plug with measuring means

Spatial frequency implemented digital filters for engine misfire

Speed and torque sensor for hydraulic motor

Speed-related indication comparisons in internal combustion engi

Stall/debris discriminating ionic engine diagnostics

Stroke discriminator for an internal combustion engine

Structure for mounting angle sensor of multicylinder engine...

Sub-cyclic measurement of speed of an internal combustion engine

Sub-cyclic measurements of speed and time for internal combustio

Sub-cyclic speed and cyclic time measurements for internal combu

System and method for detecting misfire in an internal combustio

System and method for filtering a misfire detecting data stream

System and method for processing test measurements collected fro

System and method for testing an engine

System for detecting the operative strokes of an internal...

System for hot testing engines

System for measuring crank angle for internal combustion engine