A gas stream with a reduced oxygen concentration relative to ambient air is used to vaporize a liquid fuel or liquefied higher hydrocarbon gas, or is mixed with a vaporized gas, and the reduced oxygen vaporized fuel gas is fed to a combustion device such as a premixed or diffusion combustor. Preferably, the oxygen content of the gas stream is less than the limiting oxygen index. By mixing the fuel with a gas stream that has an appropriately reduced oxygen content, auto-ignition prior to the desired flame location in the combustor can be avoided. In some embodiments, the reduced oxygen stream is generated from an air separator or taken from the exhaust of the combustion device.

System for vaporization of liquid fuels for combustion and method of use

Fuel modification method and apparatus for reduction of pollutants emitted from internal combustion engines

A combustion control system for internal combustion engines which includes a novel spark plug having a precombustion chamber in which a butane/air mixture injected through the plug is ignited in order to initiate and manage combustion wave propagation within the engine cylinder. The system also includes a fuel system to provide gasoline at an elevated pressure to the fuel metering system of the engine and a gaseous air/butane mixture under pressure to the spark plugs.

Combustion control system for internal combustion engines

A Homogeneous Charge Compression Ignition (HCCI) engine system includes an engine that produces exhaust gas. A vaporization means vaporizes fuel for the engine an air induction means provides air for the engine. An exhaust gas recirculation means recirculates the exhaust gas. A blending means blends the vaporized fuel, the exhaust gas, and the air. An induction means inducts the blended vaporized fuel, exhaust gas, and air into the engine. A control means controls the blending of the vaporized fuel, the exhaust gas, and the air and for controls the inducting the blended vaporized fuel, exhaust gas, and air into the engine.

Controlling and operating homogeneous charge compression ignition (HCCI) engines

A process is provided, which comprises transforming a synthesis gas into a liquid fuel, producing a fuel gas using the liquid fuel and a first gas, the first gas having an oxygen content less than that of ambient air, and contacting the fuel gas with a second gas, the second gas comprising at least one oxidizing agent, to form a combustion gas. Systems for carrying out the process are also provided.

Integrated system and method for production and vaporization of liquid hydrocarbon fuels for combustion

A method and apparatus for reducing the harmful products of combustion comprises an enclosed vessel adapted to contain a quantity of volatile liquid fuel and a means for extracting gaseous vapors from the fuel and for mixing the vapors with the combustion supporting gas for combustion in an internal combustion engine. A thermal reactor is included into which the combustion exhaust gases from the internal combustion engine are discharged. A flow limiting valve is interposed in the path of the exhaust gases from the thermal reactor for discharging a first portion of the exhaust gases to the atmosphere and returning a second portion of the exhaust gases to the thermal reactor vessel. Also provided is a valve for discharging the second portion of the exhaust gases from the internal combustion engine at a temperature below the boiling range of the liquid fuel into the vessel below the surface of the liquid fuel therein and an ultrasonic generator for imparting ultrasonic energy to the exhaust gases.

Arthur Zankowski

Papers

Apparatus and method for reducing harmful products of combustion