Internal combustion engine ignition system
In an engine having a predetermined operating cycle and including wall means defining at least one combustion chamber and igniting means associated with the combustion chamber for igniting a charge of fuel and air in the combustion chamber when energized, the fuel having a predeterminable octane rating, an ignition system for controlling the timing of the ignition of the charge for the combustion chambers, is described comprising; energizing means adapted to be connected to the igniting means for energizing the igniting means in response to a timing signal, means for generating a timing signal operatively connected to the energizing means, the timing signal being adjustable with respect to the mechanical cycle of the engine in response to an engine speed parameter and a charge density parameter, a manually adjustable octane selector and, function generator means responsive to manual actuation of the octane selector and operatively connected to the timing signal for selecting a predefined range of ignition timing relationships.
- Assignee:
- John A. McDougal, Detroit, MI
- Patent Number(s):
- US 4718381
- OSTI ID:
- 5421676
- Resource Relation:
- Patent File Date: Filed date 2 Jun 1986
- Country of Publication:
- United States
- Language:
- English
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