Multiple combustion ignition timing system
OwnerMac P. McAbee, Scott G. Campbellinventors
Life of this patent
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Abstract
The ignition system of the present invention includes electrical circuitry for firing two or more sparks during the power stroke of the engine. The sparks are fired at precise preselected degree positions of the piston, and the degree positions of the sparks can be changed from one RPM to another.
Claims10
A multiple combustion ignition timing system for an internal combustion engine having a cylinder, a piston mounted within said cylinder for reciprocating movement to a plurality of degree positions therein, a cam shaft and a crank shaft connected to said piston for rotation in response to reciprocating movement of said piston, and electrical firing means for delivering a spark to said cylinder, said system comprising:
- sensing means connected to one of said cam shaft and said crank shaft for sensing each of said degree positions of said piston and for creating a plurality of trigger signals, each of which corresponds to one of said degree positions;
- a first firing circuit connected to said sensing means and being capable of creating at least a first firing signal and a separate second firing signal in response to receiving said plurality of trigger signals, said first and second firing signals, each corresponding to first and second preselected ones of said trigger signals;
- said first firing circuit being connectable to said firing means for causing said first and second firing signals to be delivered to said firing means whereby said firing means will deliver first and second separate sparks to said cylinder;
- a second firing circuit connected to said sensing means and being capable of creating a third and a fourth firing signal in response to receiving said plurality of trigger signals;
- an RPM circuit connected to said sensing means for receiving said trigger signals and creating an RPM signal corresponding to the RPMs of said one of cam shaft and said crank shaft;
- a stepping circuit connected to said RPM circuit for receiving said RPM signal and for connecting said first firing circuit to said firing means when the RPMs of said one of said cam shaft and said crank shaft are between zero and a first preselected RPM level, said stepping circuit connecting said second firing circuit to said firing means when the RPMs of said one of said cam shaft and said crank shaft are above said first RPM level and below a second higher preselected RPM level.
A multiple combustion ignition timing system for an internal combustion engine having a cylinder, a piston mounted in said cylinder for reciprocating movement therein to a plurality of degree positions within said cylinder, electrical firing means for delivering a spark to said cylinder, a cam shaft and a crank shaft connected to said piston and being adapted to rotate in response to reciprocating motion of said piston, said multiple ignition timing system comprising:
- sensing means connected to one of said crank shaft and said cam shaft for sensing each of said degree positions of said piston and for creating a plurality of trigger signals, each of which correspond to one of said degree positions;
- a plurality of firing circuits connected to said sensing means, each of said firing circuits being capable of producing at least two firing signals in response to at least two of said trigger signals;
- RPM circuitry connected to said sensing means for receiving said trigger signals and for producing an RPM signal corresponding to the RPMs of said one of said cam shaft and said crank shaft;
- stepping circuitry connected to said RPM circuitry for receiving said RPM signal;
- said stepping circuitry connecting one of said firing circuits to said firing means when said RPM signal corresponds to from zero RPMs to a first preselected RPM;
- said stepping circuitry connecting other of said firing circuits to said firing means when said RPM signal corresponds to other preselected RPMs.
Dependencies are inferred from the claim text.