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US 6,186,114 B1Granted
Ignition control system for marine engine
AssigneeSanshin Kogyo Kabushiki Kaisha
InventorKazuhiro Nakamura
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AssigneeSanshin Kogyo Kabushiki Kaisha
InventorKazuhiro Nakamura
Estimating the term…
The present invention is an ignition control system for an engine having at least one combustion chamber and an ignition element for initiating combustion in the chamber. As one aspect of the ignition control, a switching circuit is provided for controlling the firing of the ignition element based upon either a signal received from a mechanism which detects and outputs a first firing timing signal or a computing mechanism which outputs a second firing timing signal based upon the first firing timing signal. As a second aspect of the ignition control, ignition elements are paired and fired together. In this arrangement, the ignition control includes a mechanism for counting outputted firing signals and assigning them values. These values are used to control the firing of the pairs of ignition elements, permitting the pairs of elements to be fired such that combustion initiation in individual combustion chambers corresponding is controllable.
An ignition control system for an engine having a plurality of combustion chambers and an ignition element for initiating combustion of an air and fuel mixture within each of said combustion chambers, said system including a firing mechanism for firing said ignition elements corresponding to all of said combustion chambers at the same time and means for controlling said firing mechanism to independently control the initiation of combustion in each of said combustion chambers, the cycle of operation of said engine being such that first and second of said combustion chambers are not on their power stroke at the same time and wherein the means for controlling the firing mechanism for independently controlling the initiation of combustion disables the firing of both of the combustion chambers only at a time when one of the combustion chambers is about to begin its power stroke.
Dependencies are inferred from the claim text.