Systems, methods, and devices for valve stem position sensing

• Main Authors: Nielsen, Douglas John, Hildebrandt, Mark William
• Format: Patent
• Language: English
• Published: 06.11.2018
• Subjects: BLASTING; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

A linear variable differential transformer (LVDT) for monitoring engine valve position is disclosed. The system includes a valve guide having an elongated recess through it. The engine valve has a valve head and a valve stem with two adjacent materials having different magnetic properties meeting at...