Abstract: In a reactor for solid ammonium salt, a method of controlling the reactor, and a NOx emission purification system using solid ammonium salt and selective catalytic reduction, the reactor includes a first chamber and a second chamber. The first chamber has an exhaust and a first heating element. Solid ammonium salt is in the first chamber. The second chamber has a second heating element and is formed at a side of the first chamber. The first chamber is connected with the second chamber. Solid ammonium salt is in the second chamber. An amount of the solid ammonium salt in the second chamber is more than that in the first chamber, so that the first chamber is heated and cooled faster than the second chamber.

Abstract: The present invention relates to a technology of reducing nitrogen oxide (NOx) which is harmful discharge gas discharged from an internal combustion engine or a combustor, and to an exhaust gas purification system which inputs solid ammonium salt such as ammonium carbamate or ammonium carbonate into a reactor, thermally decomposes and converts the solid ammonium salt into the ammonia by using engine cooling water, exhaust gas, or an electric heater, which are installed in the reactor, and reduces the nitrogen oxide included in the exhaust pipe on a selective catalytic reduction into nitrogen by injecting the ammonia by using a pressure regulator and a dosing valve.

Abstract: In a reactor for solid ammonium salt, a method of controlling the reactor, and a NOx emission purification system using solid ammonium salt and selective catalytic reduction, the reactor includes a first chamber and a second chamber. The first chamber has an exhaust and a first heating element. Solid ammonium salt is in the first chamber. The second chamber has a second heating element and is formed at a side of the first chamber. The first chamber is connected with the second chamber. Solid ammonium salt is in the second chamber. An amount of the solid ammonium salt in the second chamber is more than that in the first chamber, so that the first chamber is heated and cooled faster than the second chamber.

Abstract: The present invention relates to a technology of reducing nitrogen oxide (NOx) which is harmful discharge gas discharged from an internal combustion engine or a combustor, and to an exhaust gas purification system which inputs solid ammonium salt such as ammonium carbamate or ammonium carbonate into a reactor, thermally decomposes and converts the solid ammonium salt into the ammonia by using engine cooling water, exhaust gas, or an electric heater, which are installed in the reactor, and reduces the nitrogen oxide included in the exhaust pipe on a selective catalytic reduction into nitrogen by injecting the ammonia by using a pressure regulator and a dosing valve.

Abstract: The present invention relates to a fuel injecting apparatus for an internal combustion engine, in which exhaust gas is applied to the injection of fuel. According to the fuel injecting apparatus, a portion of hot exhaust gas is introduced in front of the outlet of the fuel injector allowing hot exhaust gas to promote the fine particle formation and vaporization of fuel thereby enhancing efficiency of fuel. Again, a portion of exhaust gas can be circulated into the combustion chamber to restrict the production of nitrogen oxide. Also, exhaust gas re-introduced into the combustion chamber through the EGR line is cooled by heat of vaporization of fuel injected from the fuel injector thereby advantageously relieving the installation of an additional cooling system for cooling exhaust gas which is re-circulated into the combustion chamber.

Abstract: The present invention relates to a fuel injecting apparatus for an internal combustion engine, in which exhaust gas is applied to the injection of fuel. According to the fuel injecting apparatus, a portion of hot exhaust gas is introduced in front of the outlet of the fuel injector allowing hot exhaust gas to promote the fine particle formation and vaporization of fuel thereby enhancing efficiency of fuel. Again, a portion of exhaust gas can be circulated into the combustion chamber to restrict the production of nitrogen oxide. Also, exhaust gas re-introduced into the combustion chamber through the EGR line is cooled by heat of vaporization of fuel injected from the fuel injector thereby advantageously relieving the installation of an additional cooling system for cooling exhaust gas which is re-circulated into the combustion chamber.