601 CD Ignition System – Self-Powered Capacitor Discharge Control for Large Flywheel Engines

The 601 CD Ignition System is a proven, field-ready capacitor discharge ignition solution for large flywheel spark-ignited engines operating in oil and gas production, power generation, and remote industrial environments. By harnessing energy directly from the rotating flywheel through a dedicated charging bar and electromagnetic coil assembly, the unit eliminates the need for external batteries, alternators, or power wiring — significantly simplifying installation on engine-mounted control panels. The sealed electronic module protects ignition circuitry from moisture, vibration, and contamination, while crankshaft-referenced dual trigger timing delivers accurate and repeatable spark advance across the full engine speed range, from initial cranking through normal operating load.

• Self-Powered Electromagnetic Charging: The 601 generates its own operating energy through a high-output electromagnetic charging system driven by the engine flywheel. A specially designed charging bar mounted to the flywheel induces current in the generator coil during each revolution, storing charge in the capacitor and eliminating any dependency on external batteries or power supplies — a critical advantage for remote and unmanned installations where maintaining a separate power source is impractical.
• 30,000 Volt Output at Low RPM: Even during slow cranking, the 601 delivers a full 30,000-volt spark to the ignition coil. This high-energy output ensures reliable ignition of lean fuel mixtures, aged spark plugs, and engines operating under cold ambient conditions where weaker ignition systems often fail to fire consistently. The result is faster, more reliable engine starts across the full range of operating conditions.
• Crankshaft-Referenced Dual Trigger Timing: The 601 uses a trigger magnet bar fastened directly to the flywheel to reference ignition timing to the crankshaft position. A dedicated trigger coil senses the passing magnets and fires the ignition module at the correct advance angle. This crankshaft-direct approach eliminates the timing drift associated with distributor-based systems and maintains spark accuracy regardless of engine wear or camshaft lash variations.
• Fully Sealed Electronic Control Module: All ignition control circuitry is housed within a sealed, potted module that is completely protected against moisture ingress, dust, vibration, and thermal cycling. With no exposed mechanical contacts or adjustable components inside the module, the unit requires no periodic calibration or internal maintenance — making it particularly suited to engines operating in harsh outdoor or industrial field conditions.
• No Moving Parts in the Control Electronics: Unlike conventional point-based ignition systems, the 601 has no mechanical contact points, breaker arms, or moving components within the electronic module. This absence of wear parts eliminates the most common causes of ignition failure — contact pitting, spring fatigue, and timing drift — and significantly extends the service interval between required maintenance actions.
• Flywheel Mounting for Superior Timing Accuracy: By positioning the trigger magnet bar and generator coil directly on the flywheel, timing reference is taken at the point of maximum mass moment in the drivetrain — the most torsionally stable location on the engine. This reduces the influence of crankshaft torsional vibration on ignition timing, resulting in smoother combustion and improved engine efficiency compared to front-of-engine trigger arrangements.
• Powers Ignition-Based Control Panels: The generator coil assembly in the 601 provides sufficient surplus energy to supply power to ignition-powered engine control panels and protective shutdown systems. This allows operators to run engine monitoring instrumentation — such as panel-mounted gauges and alarm annunciators — directly from the ignition system without installing a separate battery, alternator, or power converter on the engine skid.