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) F02P 17/06 (2006.01) G01R 13/24 (2006.01) G01R 13/32 (2006.01)
Patent
CA 1054222
ABSTRACT OF THE DISCLOSURE An improved timing control circuit for an automotive en- gine ignition analyzer is disclosed providing an improved sweep signal for the oscilloscope of the analyzer and providing both re- tard and advance lamp triggering signals for driving a strobe lamp associated with the analyzer. The ramp generator incorpor- ated provides self compensation for changes in the engine speed of revolution by employing a phase lock loop with phase detector, in- tegrator and voltage controlled oscillator. The oscillator pro- vides a ramp voltage for use as a sweep signal and input to the strobe lamp signal generator. The ramp voltage provides a sweep signal of substantially constant length while the engine speed varies over the range of idling to full speed. The timing control por- tion for the strobe lamp used in adjusting the timing of an in- ternal combustion engine provides a signal which retards lamp triggering for setting ignition advance and a signal which ad- vances lamp triggering for setting ignition retard, The circuit provides for advance and retard selection, the amount of advance or retard, and zero degree triggering for engines with various numbers of cylinders. The lamp circuit employs the ramp voltage synchronized with engine timing, a reference voltage for setting the amount of advance or retard, and a comparator which provides a triggering signal for the lamp when the ramp and reference vol- tages match.
266554
Keegan Jack J.
Reeves George I.
LandOfFree
Timing control circuit for an automotive engine ignition... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Timing control circuit for an automotive engine ignition..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Timing control circuit for an automotive engine ignition... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-723929