摘要:
Static mixer for mixing a liquid in a gaseous current: a duct (2) having a longitudinal axis (9) such as to allow passage of a gaseous current in a direction parallel to said axis; a plurality of fins (14) each able to impart to the gas a tangential velocity component with respect to said axis;
characterized in that a first set of the aforesaid fins (21) arranged around the aforesaid axis is such as to impart to the gas a complete rotary movement around said axis; a second set of the aforesaid fins (22) arranged around the aforesaid first set in such a way as to impart to the gas a global rotary movement around the aforesaid axis in an opposite direction to that caused by the first set.
摘要:
An engine apparatus comprising an internal combustion engine (1) having an exhaust gas line (2) and at least a first (3) and a second (6) turbine for recovering energy from the exhaust gases arranged in series on said line, characterized in that a converter (8) comprising a catalyst for treating said gases is arranged on said exhaust line in an intermediate position between the two turbines. Exhaust gas treatment process that can be incorporated in an engine as described above.
摘要:
System for injecting a urea solution into the exhaust gas manifold (9) of a diesel engine, upstream of a unit (10) containing an SCR catalytic converter, said system comprising a storage tank (1), and a supply tank (2), maintained under pressure by means of a specific compressed air supply line, said line incorporating pressure regulating devices (13), and a line (7) for injecting the liquid into said manifold. Method of injection using said system.
摘要:
Static mixer for mixing a liquid in a gaseous current: a duct (2) having a longitudinal axis (9) such as to allow passage of a gaseous current in a direction parallel to said axis; a plurality of fins (14) each able to impart to the gas a tangential velocity component with respect to said axis;
characterized in that a first set of the aforesaid fins (21) arranged around the aforesaid axis is such as to impart to the gas a complete rotary movement around said axis; a second set of the aforesaid fins (22) arranged around the aforesaid first set in such a way as to impart to the gas a global rotary movement around the aforesaid axis in an opposite direction to that caused by the first set.
摘要:
System for injecting a urea solution into the exhaust gas manifold (9) of a diesel engine, upstream of a unit (10) containing an SCR catalytic converter, said system comprising a storage tank (1), and a supply tank (2), maintained under pressure by means of a specific compressed air supply line, said line incorporating pressure regulating devices (13), and a line (7) for injecting the liquid into said manifold. Method of injection using said system.