F - Mech Eng,Light,Heat,Weapons – 02 – P
Patent
F - Mech Eng,Light,Heat,Weapons
02
P
317/5.4
F02P 3/08 (2006.01)
Patent
CA 1198768
Capacitor Discharge Ignition System For Internal Combustion Engines Abstract The invention provides a modular ignition system using a separate ignition module (16) for each engine cylinder. The modules (16) can be arranged for use with engines having differing numbers of cylinders. Each module (16) includes a main capacitor (22) to be charged by the engine's alternator (11). The main capacitor (22) is discharged through a main silicon controlled rectifier (23) into an ignition trans- former (28) to provide a high voltage pulse to fire a spark plug (15). A pilot capacitor (26) is also charged by the alternator (11) to provide power to a pilot SCR (36). The pilot SCR (36) has its gate connected to a trigger winding (14) in the alternator (11) to discharge the pilot capacitor (26) into the gate of the main SCR (23) to fire the spark plug (15). The pilot capacitor (26) is also connected to the cathode of the main SCR (23). This connection raises the voltage level of the pilot capacitor (26) during the discharge pulse to assure gate current to the main SCR (23) during the critical turn on period. A biasing network including resistors (39,40) and a bias capacitor (41) is provided in each of the modules (16) to maintain a substantially constant ignition angle, regardless of engine speed. The biasing networks can be interconnected to assure uniform timing for all of the spark plugs (15).
417679
Brunswick Corporation
Meredith & Finlayson
LandOfFree
Capacitor discharge ignition system for internal combustion... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Capacitor discharge ignition system for internal combustion..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Capacitor discharge ignition system for internal combustion... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1327922