Contactless photoelectric ignition system
OwnerRichard J. Jordan, Charles W. Travisinventors
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Abstract
A contactless ignition system for internal combustion engines permitting the elimination of mechanical ignition points by replacing such ignition points by a radiation source and a radiation sensitive element mounted on the distributor breaker plate. The radiation source, such as a light emitting diode, emits a radiation beam, such as a light beam, impinging upon the cam portion of the distributor shaft and which is reflected onto the radiation sensitive element, such as a photoelectric cell, or photoresistor or photoconductor, for example, or preferably a phototransistor providing at its output an appropriate timing pulse for a given angular position of the distributor shaft.
Claims16
In combination with an internal combustion engine distributor having a rotatable cam shaft and a breaker plate, a radiation source, a radiation sensitive element, means for mounting said radiation source and said radiation sensitive element on said breaker plate such that the radiation emitted by said radiation source impinging on said cam shaft is reflected onto said radiation sensitive element at a predetermined angular position of said cam shaft and means for connecting said radiation sensitive element to a utilization circuit.
Dependencies are inferred from the claim text.