초록 ▼

Apparatus and a method of introducing a primary fuel, which may be a coal water slutty, and a high combustion auxiliary fuel, which may be a conventional diesel oil, into an internal combustion diesel engine comprises detecting the load conditions of the engine, determining the amount of time prior

Apparatus and a method of introducing a primary fuel, which may be a coal water slutty, and a high combustion auxiliary fuel, which may be a conventional diesel oil, into an internal combustion diesel engine comprises detecting the load conditions of the engine, determining the amount of time prior to the top dead center position of the piston to inject the main fuel into the combustion chamber, and determining the relationship of the timing of the injection of the auxiliary fuel into the combustion chamber to achieve a predetermined specific fuel consumption, a predetermined combustion efficiency, and a predetermined peak cylinder firing pressure.

대표청구항 ▼

A method of introducing a low combustible main fuel and a high combustible auxiliary fuel into in an internal combustion engine having at least one cylinder having a combustion chamber, the method comprising: injecting the auxiliary fuel to start and to run the engine at idle until the engine achiev

A method of introducing a low combustible main fuel and a high combustible auxiliary fuel into in an internal combustion engine having at least one cylinder having a combustion chamber, the method comprising: injecting the auxiliary fuel to start and to run the engine at idle until the engine achieves normal operating conditions; and detecting the load conditions on the engine; and, at minimum load conditions, introducing the auxiliary fuel into the combustion chamber as a pilot fuel prior to introducing the main fuel into the combustion chamber; at midrange load conditions, determining the amount of time required for a predetermined amount of evaporation and devolatilization of the main fuel under the load conditions; introducing the main fuel into the combustion chamber sufficiently prior to the top dead center position of the piston to achieve the predetermined amount of evaporation and devolatilization; and, delaying the introduction of the auxiliary fuel into the combustion chamber relative to the introduction at minimum load conditions for a predetermined amount of time so that the main fuel can be ignited and burn very fast to yield a predetermined high combustion rate and efficiency; and at maximum load conditions, determining the amount of time required for a predetermined amount of evaporation and devolatilization of the main fuel; introducing the main fuel sufficiently prior to the top dead center position of the piston to achieve the predetermined amount of evaporation and devolatilization; and delaying the introduction of the auxiliary fuel into the combustion chamber until a predetermined amount of time after introduction of the main fuel has occurred so that the main fuel has evaporated and so that the main fuel will burn very fast to yield a predetermined high combustion rate and efficiency at a predetermined maximum cylinder pressure.