TRIGGERED IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINES WITH ANTI-REVERSE RUNNING CONTROL

• Main Authors: SCHMIEDEL, ROBERT C, SLEDER, RICHARD L
• Format: Patent
• Language: English; French
• Published: 24.06.1980
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES; WEAPONS

A two-cylinder, two-cycle engine for an outboard motor includes a pull-rope starter unit and an alternator driven, capacitor discharge ignition system. The alternator includes an annular permanent magnet secured within a flywheel skirt and includes a pair of circumferential opposite poles with diametrical spaced neutral areas. A stator assembly is mounted within the annular magnet and includes a semicircular core with charging coil at each end. The coils are connected to charge a capacitor unit which is discharged through a control rectifier. A trigger coil is connected to the gate of the rectifier and is mounted in coplanar relation between the charging coils. The trigger coil is wound on a pole aligned with and spaced from the stator core with the coil and pole rotatably mounted by a housing having an integral cam for positioning a throttle lever. The housing rotates through a selected segment of the core. The outer periphery of the segment is non-circular to form an increasing air gap with advancing throttle spark position and thereby progressively increases the minimum RPM for starting of the engine, if the throttle and spark are advanced BTDC. This ensures that the piston moves past TDC during starting for all throttle positions.