Laura Lee Martinson

US Patent:

8584651, Nov 19, 2013

Filed:

Jun 6, 2012

Appl. No.:

13/490425

Inventors:

Laura J. Martinson - Prior Lake MN, US
Troy P. Martinson - Prior Lake MN, US
John S. Titus - Prior Lake MN, US

International Classification:

F02P 5/145

US Classification:

12340658, 123618, 701110

Abstract:

An ignition control module for an internal combustion engine is incorporated directly into an existing ignition module package design and thereby preserves stock appearance, and is cooperative with stock magnetos, distributors and coils. The module incorporates both ignition pulse generation and adjustable rev limiting. A pushbutton switch allows manual selection of a preferred RPM to rev limit to, and the selection may be carried out under the hood while the engine is running. A plurality of light emitting diodes display the selected rev limit RPM by flashing a corresponding LED, and when not being used to select rev limit RPM, display the engine RPM in bar graph format. A digital flywheel is provided to reduce adverse affect of mechanical jitter in distributor mechanical parts, to improve timing of individual sparks. Dwell and timing curves are programmed into a microprocessor, and may be changed through external input.