Internal-combustion engines – Combustion chamber means combined with air-fuel mixture... – Air or combustible mixture entering the combustion chamber...
Patent
1979-01-11
1981-09-08
Lazarus, Ronald H.
Internal-combustion engines
Combustion chamber means combined with air-fuel mixture...
Air or combustible mixture entering the combustion chamber...
123308, 308 3CH, F02B 500
Patent
active
042878632
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. Additionally, the unheated air intake of the dual induction system allows, in part, the engine's piston speed to be economically increased substantially beyond the conventional 3000 feet per minute commercial limit for adequately durable sliding piston reciprocating speed, and, an associated increase of the engine's crankshaft speed, to recover the potential engine power lost by the use of only the relatively low power mixture used in reducing the emissions. The modified engine includes also, a crosshead assembly associated with the dynamic action between said piston and the cylinder, which enables the modified engine to operate indefinitely at the power output and speed increases, or, as limited by sources other than the crosshead assembly associated with the dynamic action.
REFERENCES:
patent: 1405403 (1922-02-01), Everett
patent: 2466181 (1949-04-01), Myrick
patent: 2484009 (1949-10-01), Barber
patent: 2682433 (1954-06-01), Maier
patent: 2968297 (1961-01-01), Rauen
patent: 3418981 (1968-12-01), Von Seggern
Gill, Smith, & Ziurys, "Internal Combustion Engines", U.S. Naval Institute, Annapolis, pp. 6-14, 1959.
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