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Apparatus and method for reducing the emissions of a diesel engine. A hydrous alcohol fuel of low proof supplements the diesel fuel, particularly in high acceleration and high r.p.m. conditions. The fuel is fumigated into the airstream of the intake manifold of the engine by a fuel injector that is

Apparatus and method for reducing the emissions of a diesel engine. A hydrous alcohol fuel of low proof supplements the diesel fuel, particularly in high acceleration and high r.p.m. conditions. The fuel is fumigated into the airstream of the intake manifold of the engine by a fuel injector that is supplied both the alcohol fuel and air under pressure. Control apparatus begins delivery of the alcohol fuel above a selected engine r.p.m. and the amount delivered generally corresponds to engine r.p.m. Under heavy acceleration, the flow of diesel fuel is reduced and engine power is brought back up by the alcohol fuel. No alcohol fuel is used when the engine is decelerating or reducing its r.p.m.\s.

대표청구항 ▼

Apparatus for reducing the emissions of a diesel engine, comprising: (a) a hydrous alcohol fuel of between about 33 percent and about 70 percent alcohol by volume and between about 30 percent and 67 percent water by volume; (b) a fuel injector for delivering said hydrous alcohol fuel for combustion

Apparatus for reducing the emissions of a diesel engine, comprising: (a) a hydrous alcohol fuel of between about 33 percent and about 70 percent alcohol by volume and between about 30 percent and 67 percent water by volume; (b) a fuel injector for delivering said hydrous alcohol fuel for combustion in the engine; and (c) means for controlling the delivery of said fuel to the engine in response to operating conditions of the engine, such that said fuel is delivered for combustion only when the engine is being operated to increase the rate of engine revolutions and when the engine is being operated substantially to maintain the rate of engine revolutions.