F - Mech Eng,Light,Heat,Weapons – 02 – P
Patent
F - Mech Eng,Light,Heat,Weapons
02
P
324/15
F02P 17/00 (2006.01) F02P 17/02 (2006.01) G01R 13/00 (2006.01) G01R 13/20 (2006.01)
Patent
CA 1038930
ABSTRACT OF THE DISCLOSURE Engine diagnostic apparatus for displaying on a cathode ray tube the voltage conditions existing at each of the spark plugs which apparatus is intended for use with ignition systems in which the voltage pulses applied to the spark plugs are of such short duration that a cathode ray tube will not properly respond to the changes of voltage. The apparatus is effective to successively charge a capacitor to a value corresponding to the value of each voltage pulse and the voltages across this capacitor are used to control the vertical defection of the cathode ray tube. At the end of a first period of time following a voltage pulse, the capacitor is shorted. The capacitor is maintained shorted for a longer period of time less than the time between successive pulses so as to avoid undesired charging of the capacitor as a result of transient condi- tions. The time constant of the charging circuit for the capacitor is less than the duration of the voltage peak so that the capacitor is substantially fully charged during the voltage peak.
232561
Johnston Eugene D.
Marino Joseph A.
Roth Sydney J.
LandOfFree
Engine diagnostic apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Engine diagnostic apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine diagnostic apparatus will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-242722