Systems and methods for reducing emissions

An internal combustion engine having reduced emissions output, comprising:

• an exhaust gas system;
• a first fuel source for providing fuel to the internal combustion engine;
• and
• an emission reduction system for reducing emissions from the exhaust gas system, the emission reduction system comprising:
• an afterburner having an inlet and an outlet;
• a fuel delivery device located within the afterburner, the fuel delivery device receiving fuel from a second fuel source that is stored separately from the first fuel source;
• a control system connected to the fuel delivery device for regulating an amount of fuel to be dispensed into the afterburner to reduce oxygen levels in exhaust gases at the outlet;
• and
• a bypass system including a bypass pipe fluidly connected to an exhaust pipe upstream of the emission reduction system and to an exhaust stack downstream of the emission reduction system, the bypass system further including a valve configured to control a variable amount of exhaust flow provided to the afterburner of the emission reduction system and the bypass pipe of the bypass system.

A vehicle having reduced emissions output, comprising:

• an internal combustion engine;
• an exhaust pipe fluidly coupled with the internal combustion engine;
• an oxygen removal system positioned upstream of the internal combustion engine and fluidly coupled with the exhaust pipe;
• an emission reduction system for reducing emissions from the internal combustion engine operably coupled with the exhaust pipe downstream of the oxygen removal system, wherein the emission reduction system comprises:
• an afterburner having an inlet and an outlet;
• a fuel delivery device for delivering fuel to the afterburner;
• and
• a control system connected to the fuel delivery device for regulating an amount of fuel to be delivered to the afterburner to reduce oxygen levels in exhaust gases at the outlet;
• and
• a bypass system including a bypass pipe fluidly connected to the exhaust pipe upstream of the emission reduction system and to an exhaust stack downstream of the emission reduction system, the bypass system further including a valve configured to control a variable amount of exhaust flow provided to the afterburner of the emission reduction system and the bypass pipe of the bypass system.

A method of reducing emissions from an internal combustion engine, the method comprising the steps of:

• establishing a flow of ambient air into an afterburner having a first inlet and an outlet, the flow of the ambient air provided through a second inlet separated from the first inlet;
• developing a stream of exhaust gas by initiating operation of the internal combustion engine;
• establishing an exhaust flow of the exhaust gas through the afterburner;
• introducing a fuel flow of fuel into the afterburner,
• igniting the fuel in the afterburner;
• and
• actuating a valve to control the exhaust flow through a bypass system including a bypass pipe fluidly connected to an exhaust pipe upstream of an emission reduction system and to an exhaust stack downstream of the emission reduction system, wherein a variable amount of exhaust flow is provided to the afterburner and the bypass pipe of the bypass system,
• wherein the step of controlling the exhaust flow of the exhaust gas and the fuel flow of fuel is accomplished by controlling a fuel air ratio (FAR).