Inventors:
John T. Rauen - Detroit MI
International Classification:
F02B 500
Abstract:
An emission control method is disclosed for the current, conventional, piston type, spark ignition, gasoline or equivalent fueled internal combustion engine having at least one cylinder. The method of the present invention increases the engine's fuel economy upwards of 70% from its current level. The emission control method being accomplished by engine modifications including a dual induction system adapted to provide to the engine a relatively low (lean) fuel content and therefore a relatively low power fuel-air mixture. This accomplishes an increased fuel economy and a substantially emission free exhaust, as pertains to the fuel alone. The dual induction system includes a heated intake supplying all of the fuel to the engine in a highly-heated state and a small percentage of the total inducted air, equally as highly heated. The dual induction system also includes an unheated and relatively much larger capacity cold air intake adapted to supply all of the unheated air inducted by the engine. The dual induction system enables a fuel-air mixture to be concentrated near the cylinder's usual spark plug to achieve a localized, initial, combustible charge thereat.