Constant spark energy, inductive discharge ignition system

Patent · Tue May 16 04:00:00 EDT 1989

OSTI ID:5982187

White, R C

A constant energy ignition system is described for producing ignition pulses in response to a pulse ignition timing signal, comprising: (a) means for storing energy from a voltage source during receipt of a dwell signal and for releasing the stored energy to produce an ignition pulse upon receipt of a first astable output signal; (b) a first one shut multivibrator, responsive to the pulse ignition timing signal, for producing a first output signal in response to each pulse of the ignition timing signal applied thereto, the first output signal including a first astable signal and a first stable signal defining the dwell signal, the first astable signal having a variable time duration which is proportional to an applied first control signal; (c) a second one shot multivibrator, responsive to the pulse ignition timing signal, for producing a second output signal in response to each pulse of the ignition timing signal applied thereto, the second output signal including a second astable signal and a second stable signal; (d) means for detecting the difference between the first and second output signals to produce the first control signal and for applying the first control signal to the first one shot multivibrator to control the time duration of the first astable signal; and (e) means for applying the first astable signal and the dwell signal from the first one shot multivibrator to the energy storage means.

• Assignee: Sundstrand Corp., Rockford, IL
• Patent Number(s): US 4829973
• OSTI ID: 5982187
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
DESIGN
ELECTRIC DISCHARGES
ELECTRIC SPARKS
ENERGY STORAGE
ENGINES
HEAT ENGINES
IGNITION SYSTEMS
INDUCTION
INTERNAL COMBUSTION ENGINES
PULSE TECHNIQUES
SIGNAL CONDITIONING
STORAGE