US PATENT SUBCLASS 123 / 612
.~ Having engine component position sensor

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

594  DF  HIGH TENSION IGNITION SYSTEM {28}
612.~ Having engine component position sensor {5}
613  DF  .~.~> Optical sensing
614  DF  .~.~> Including a zero crossing detector
615  DF  .~.~> Includng an oscillator
616  DF  .~.~> Piezoelectric sensor
617  DF  .~.~> Inductive or magnetic sensor

DEFINITION

Classification: 123/612

Having engine component position sensor:

(under subclass 594) Subject matter in which the ignition system includes means to determine the position of one engine component relative to another.

(1) Note. The means usually determines the angular position of the distributor shaft, camshaft, or crankshaft of the associated engine.