Abstract:
PURPOSE: An EGR(Exhaust Gas Regeneration) control system of the gasoline/diesel fuel mixing compression ignition combustion engine and a method thereof are provided to control the combustion time of the gasoline/diesel fuel mixing compression ignition combustion engine and minimize producing particulate matter, thereby preventing the operability of EGR system from deteriorating by using the particulate matter. CONSTITUTION: An EGR control system of the gasoline/diesel fuel mixing compression ignition combustion engine include a plurality of cylinders(101~104) and an exhaust gas line(200). The cylinder includes a fuel injector(101a, 102a, and 103a). Exhaust gas, which is discharged by combusting fuel from the cylinder, flows in the exhaust gas line. An ignition plug(104a) is installed in any one of cylinder among the plurality of cylinders. [Reference numerals] (AA) Post treatment device
Abstract:
PURPOSE: A diesel-gasoline mixed fuel engine, and a homogeneous charge compression ignition control method thereof are provided for users to practically use a homogeneous charge compression ignition method. CONSTITUTION: A diesel-gasoline mixed fuel engine comprises a combustion chamber(1a) with a high compression ratio, a gasoline injector(4), and a diesel injector(7) for ignition. The combustion chamber with a high compression ratio is formed between a cylinder block(1) and a cylinder head(3), and reciprocates to perform strokes. The gasoline injector supplies gasoline fuel for pre-mix with air when an intake stroke occurs in a combustion chamber. The diesel injector for ignition injects diesel fuel to form diesel drops in a compression stroke. The diesel injector for ignition forms diesel flame for ignition trigger right after the fuel injection of the diesel injector(6).
Abstract:
PURPOSE: An EGR system, diesel-gasoline mixed combustion engine applied with the same, and a control method thereof are provided to prevent particle matters from being stuck on the inner surface of the EGR system by utilizing clean exhaust gas as EGR gas and using a specific cylinder as a cylinder only for EGR gas. CONSTITUTION: An EGR system of a diesel-gasoline mixed combustion engine comprises a non-EGR cylinder(11a) and an EGR cylinder(11b). The non-EGR cylinder is connected to an exhaust manifold(25) which is directly connected to a post processing apparatus. In the non-EGR cylinder, an exhaust valve is connected to an EGR line, so that EGR gas supplied to the diesel-gasoline mixed combustion engine. The EGR line passes through a cooler(33) placed at the downstream of a compressor of a turbocharger.
Abstract:
PURPOSE: A diesel-gasoline complex fuel engine is provided to make a combustion chamber stratified into a high concentration EGR(Exhaust Gas Recirculation) space and a relatively low concentration EGR, thereby securing the ingnitionability in low-speed low-load area improves to improve combustion. CONSTITUTION: A diesel-gasoline complex fuel engine includes an EGR air intake port(10), an air intake valve(20), a gasoline injector and a diesel injector. The EGR air intake port comprises a tangential port(11) supplying the fuel-air mixture with low EGR rate and a helical port(12) supplying the fuel-air with high EGR rate. The air intake valve comprises a tangential valve(21) equipped on the tangential port and a helical valve(22) equipped on the helical port. The gasoline injector is equipped on an air intake manifold(30) and injects gasoline fuel into the air. The diesel injector injects diesel fuel directly into combustion chamber(3) instead of a spark plug. [Reference numerals] (AA) Exhaust gas;