US PATENT SUBCLASS 123 / 406.18
.~.~.~ Engine shaft rotational position sensor malfunction responsive (e.g., crank shaft, cam shaft)

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

406.11  DF  SPARK IGNITION TIMING CONTROL {5}
406.12  DF  .~ Electronic control {10}
406.13  DF  .~.~ With fail-safe, backup or malfunction detecting means {5}
406.18.~.~.~ Engine shaft rotational position sensor malfunction responsive (e.g., crank shaft, cam shaft)

DEFINITION

Classification: 123/406.18

Engine shaft rotational position sensor malfunction responsive (e.g., crank shaft, cam shaft):

(under subclass 406.13) Subject matter wherein (a) the engine includes an elongated member located in the engine block or in the cylinder head which continuously turns in the same direction about its axis during engine operation and transmits torque or motion and (b) the regulating means is responsive to a signal indicative of a cessation of proper functioning of a transducer which responds to changes in rotational displacement of the elongated member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

406.58+, for an engine shaft rotational position responsive spark ignition timing electronic control.

SEE OR SEARCH CLASS

73, Measuring and Testing,

116+, for motor and engine testing.